CN1064598C

CN1064598C - Ink jet recording apparatus and method for controlling temperature thereof

Info

Publication number: CN1064598C
Application number: CN90108978A
Authority: CN
Inventors: 大塚尚次; 矢野健太郎; 杉本仁
Original assignee: Canon Inc
Current assignee: Canon Inc
Priority date: 1989-09-18
Filing date: 1990-09-18
Publication date: 2001-04-18
Anticipated expiration: 2005-09-18
Also published as: CN1359798A; EP0418818B1; DE69032238T2; EP0418818A3; CN1191931C; CN1051884A; CA2025506A1; DE69032238D1; AU6263590A; AU635770B2; CA2025506C; EP0418818A2; SG44735A1; SG84552A1; ATE165048T1

Abstract

An ink-jet recording apparatus for discharging an ink droplet from a recording head to perform recording includes a heating element array for heating the recording head, a temperature sensor for measuring an ambient temperature, a timer for measuring a time associated with a temperature variation of the recording head during a recording operation, and a control unit for controlling an energy supplied to the heating element array on the basis of the ambient temperature measured by the temperature sensor and the time measured by the timer.

Description

Ink jet recording and temperature-controlled process thereof

The present invention relates to a kind of ink jet recording and temperature-controlled process thereof, carry out record thereby this device can spray ink to recording materials from record head.

Tape decks such as printer, duplicator, facsimile machine all are according to pictorial information, the figure that record is made up of dot pattern on recording materials such as paper material thin plate.

Above-mentioned tape deck can be divided into types such as ink injecting type, point type, thermal and laser beam formula by the difference of its recording mode.Wherein, ink injecting type (ink jet recording) is to constitute like this, make ink (record liquid) drop from the ejiction opening ejection of record head, be splashed on the recording materials and attached to it, thereby carried out record.

In recent years, to employed a large amount of tape decks, requirements such as high writing speed, high-resolution, high image quality and low noise have been proposed all.

As the tape deck that meets above-mentioned requirements, can enumerate known ink jet recording.

In ink jet recording, owing to write down from record head ejection ink, so be subjected to the record head Temperature Influence very big.

For this reason, temperature-controlled process in the existing ink jet recording is: the heater that all is equiped with expensive pyrostat and is used to control temperature on record head, detected temperatures according to record head, the temperature of record head is controlled in the desirable scope, has promptly adopted closed loop control method to control.

The heater that above-mentioned control temperature is used, can adopt the heating heater block that is installed on the record head, or the foaming jetting recorder that adopts Canon's (strain formula) to be advocated, promptly on the parts of the bubble that utilizes ink film boiling state to produce with the ink droplets ejection, adopted heater, and state ejection in the use when use heater, requirement is switched on by the degree that does not foam.

Especially (Canon Co., Ltd advocates in foaming ejection-type heater, utilize heat energy in the ink of solid or liquid, to form bubble and spray the tape deck of drop), as previously mentioned, the ejection characteristic of record head changes with temperature is different, needs to adopt closed loop thermal control.In addition, it also is only limited in the cheap typewriter of the small desk computer of not considering problems such as lettering quality, deep or light uniformity and uses.

Yet, in recent years, along with being the appearance of OA machine of the portable of representative with ラ Star プト Star プ personal computer on the market, even printer to the portability type, also require it to have higher print quality, for the printer of this portable, for making its structure miniaturization, development main flow from now on will be to make record head and ink tank make whole dismountable cartridge type device (デイス Port-サプ Le カ-トリ Star ジイプ).

In addition, along with increasing of word processor, personal computer and the facsimile machine quantity of family's special use, consider that from maintenance the detachable card case type structures also will become main flow.

In these cases, all be that the temperature sensor of temperature control usefulness, heater etc. are arranged in dismountable cartridge, thereby produced following shortcoming:

(1) causes the discreteness of measured temperature owing to the discreteness of temperature sensor.

Because removable record head is running stores, so from the host aspect of printer, printhead of every replacing just may connect the temperature sensor that characteristic disperses.

For the record head of foaming injecting type, because the heater of its ejection usefulness is to make by the technology of processing semiconductor.Consider from the angle that reduces its cost, the diode-transducer that the record head detected temperatures is used, also be to make by same processing method, because the discreteness during above-mentioned diode-transducer is made, make the temperature sensor of batch making not reach required precision, and may produce the ambient temperature measurement value deviation more than 15 ℃.

Therefore, in the closed loop thermal control procedure of service recorder head temperature sensor, add the program that the discreteness of record head temperature sensor is adjusted, or the device that installing is adjusted and measured in order the discreteness of sensor on main frame, and revise by adjusting change-over switch, thereby increased loaded down with trivial details adjustment operation.

Owing to above reason, increased production cost, and used also inconvenience, added increase along with information processing capacity, because of the employing closed-loop control increases considerably the treating capacity of master processor, thereby small-sized portable printer main body Design of device load has also been increased.

(2) measure of elimination static, noise

Because detachable record head is running stores, so the user will repeatedly carry out from main frame, the frequent operation of dismounting, the contact of host computer side usually is exposed for this reason, and the output signal of temperature sensor is drawn from removable record head, then through balladeur train, again through flexible wiring, on the loop of the printed circuit board (PCB) of the main frame that directly leads, so the temperature survey loop has just become the extremely weak circuit of antistatic noise ability.In addition, for small-sized, portable tape deck, its external packing does not have enough shield effectivenesses, so the ability of antistatic noise is just more weak.

Therefore, in existing temperature checking method, must add electrostatic screen throughout, also will increase the parts that destatic, thereby influence miniaturization, the reduction of cost and the quality of product of device widely temperature sensor.

Main purpose of the present invention provides a kind of ink jet recording and its temperature-controlled process, need not install temperature sensor on the record head of this device, just the temperature of record head can be controlled in the desired scope.

For achieving the above object, the invention provides a kind of ink-jet recording apparatus, comprising: the record head that the ejection ink droplet writes down; Heat the heating arrangements of above-mentioned record head; Link to each other, control the control of energy mechanism that provides to it with described heating arrangements; The temperature survey mechanism of measures ambient temperature; And time movement; It is characterized in that: described metrological service is according to the variations in temperature timing of the record head relevant with the record operation, described controlling organization links to each other with time movement with described temperature survey mechanism, and environment temperature and the above-mentioned time movement measured time measured according to the said temperature measuring mechanism, the energy that control is supplied with to above-mentioned heating arrangements.

For achieving the above object, the present invention also provides a kind of record head with ejection ink droplets, and comprise the temperature-controlled process of ink jet recording of the time movement of writing time of temperature survey mechanism, the above-mentioned record head of instrumentation of the heating arrangements that heats this record head, measures ambient temperature and non-writing time, it is characterized in that the temperature-controlled process of this device has following steps:

The first step: before operation of recording begins,, energy is supplied with above-mentioned heating arrangements, control the temperature of above-mentioned record head according to the environment temperature of measuring by the said temperature measuring mechanism with by non-writing time of above-mentioned time movement instrumentation;

Second step: in operation of recording,, energy is supplied with above-mentioned heating arrangements, control the temperature of above-mentioned record head according to above-mentioned environment temperature and above-mentioned writing time;

The 3rd step: tracer signal is supplied with above-mentioned record head, the line item of going forward side by side.

Fig. 1 is the structure skeleton diagram of the present invention one better embodiment;

Fig. 2 is the decomposition texture oblique view of the cartridge device of the present invention one better embodiment:

Fig. 3 is figure, 2 assembling oblique view;

Fig. 4 is the oblique view of ink injection unit IJU installation portion;

Fig. 5 is a cartridge IJC Unit Installation key diagram;

Fig. 6 is the outside drawing of better embodiment of the present invention;

Fig. 7 is the oblique view of record head;

Fig. 8 is the profile of Fig. 7 device;

Fig. 9 is the profile of another kind of recording head structure;

Figure 10 is the temperature variation characteristic of record head when only carrying out adjustment before lettering;

Figure 11 and Figure 17 when only in the lettering process, carrying out adjustment, the temperature variation characteristic of record head;

Figure 12 and Figure 18 be for only before lettering and in the lettering process when carrying out adjustment, the temperature variation characteristic of record head;

Figure 13 represents not carry out adjustment and the record head temperature variation characteristic when lettering only;

Figure 14 is when carrying out lettering with the present invention the 1st embodiment, the temperature variation characteristic of record head;

Figure 15 is the temperature control flow figure of the present invention the 1st embodiment:

Figure 16 is the temperature characteristic figure of record head;

Figure 19 is the temperature variation characteristic of the present invention the 2nd embodiment record head when lettering:

Figure 20 is the temperature control flow figure of the present invention the 2nd embodiment:

Figure 21 is the structural representation block diagram of the control section of the present invention one better embodiment;

Figure 22, Figure 23 and Figure 25 are near the built-in temperature kind record head variation of temperature characteristics the temperature sensor;

Figure 24 is the temperature control flow figure of the present invention the 3rd embodiment;

Figure 26 is near the built-in temperature the temperature sensor and revises the variation of temperature performance plot;

Figure 27 is an adjustment time diagram regularly;

Figure 28 is an explanation temperature adjustment pulse output time diagram regularly:

Figure 29 is the temperature control flow figure of the present invention the 4th embodiment;

Figure 30 is the record head equilibrium temperature performance plot of corresponding each lettering ratio;

Figure 31 is the performance plot that the record head of corresponding each lettering ratio heats up and lowers the temperature;

Figure 32 and Figure 33 are the temperature control flow figure of the present invention the 5th embodiment;

Figure 34 is the oblique view that the present invention the 6th embodiment carries out temperature controlled ink jet recording pattern;

Figure 35 is the local oblique view of record head structural model among Figure 34;

Figure 36 is the record head temperature among expression Figure 34 and sprays the curve map of using the relation between the power transistor temperature with the driving of heater;

Figure 37 is the block diagram of the temperature control system of record head among Figure 34;

Figure 38 is the part oblique view of the tactic pattern with temperature controlled record head given among the present invention the 7th embodiment;

Figure 39 is the profile of the tellite among the present invention the 7th embodiment;

Figure 40 is the block diagram of the temperature control system of the present invention the 7th embodiment;

Figure 41 is the profile of the tellite of the present invention the 8th embodiment;

Figure 42 is the profile of the tellite of the 9th embodiment of the present invention;

Figure 43 is the block diagram of the control system of the present invention the 9th embodiment.

Fig. 2 to Fig. 6, be to implement the present invention or the used injection unit of ink preferably IJU, ink injection record head IJH, ink tank IT, ink for explanation to spray the key diagram that cartridge IJC, ink jet recording main frame IJRA, balladeur train HC concern between them.Below will describe the structure of each several part with above-mentioned these figure.

Ink in the present embodiment sprays cartridge IJC, shown in the oblique view of Fig. 3, because of the ratio of accommodating the ink part is very big, the front end of ink injection unit IJU is made the shape of giving prominence to slightly forward from the front of ink tank IT.This ink sprays cartridge IJC, be by positioner (the following describes) that is loaded in the balladeur train HC (Fig. 5) on the ink jet recording main frame IJRA and electric terminal institute fixed support, and be the balladeur train HC a kind of dismountable structure of carrying out dismounting relatively.Fig. 2 to Fig. 6 in this example is each structure of being suitable for of invention that the present invention sets up the stage, therefore, in the structure that these inventions are described simply, the integral body of installing is also illustrated.

(i) about the explanation of ink injection unit IJU structure.

Ink injection unit IJU is the unit of foaming spray regime, and it utilizes electrothermal transformationer according to the heat that the signal of telecommunication generated, and makes ink produce the film boiling line item of going forward side by side.

Among Fig. 2, the 100th, heater plates, it is that many row's shapes are joined the electrothermal transformationer (ejection heater) of cloth, temperature adjustment constitutes with heater and to the aluminium distribution wire that their are powered by forming on silicon chip with film technique.

The 200th, with heating plate 100 corresponding distribution base plates, it has and the corresponding distribution of the distribution of heating plate 100 (for example being connected with terminal conjunction method), and in the end of these distributions, the pad projection 201 of acceptance from the next signal of telecommunication of host apparatus is arranged.

The 1300th, be equipped with the top board of the with groove of separated dividing plate of each ink via and shared liquid chamber, it is to be monolithic devices with ink inlet 1500 and orifice plate 400 with a plurality of ejiction openings, the 1500th, and the ink that ink tank is provided imports to the inlet of shared liquid chamber.The material of moulding preferably adopts polysulfones as a whole, and other molding resin also can.

The 300th, wiring substrate 200 back sides are given the supporter of planar support, for example be metal supporter, and as the base plate of ink injection unit.

The 500th, the stage clip of M word shape, the middle body of its M shape is pushed down shared liquid chamber lightly, with its baffle part 501 usefulness line pressures the part on liquid road is pushed down simultaneously.The pawl pin of stage clip is by the hole 3121 of supporter 300, heater plates 100 and top board 1300 are fixed on the back side of supporter 300, make them be pincers and go into state and combine, utilize the elastic potential energy of stage clip 500 and baffle part 501 thereof, heater plates 100 and top board 1300 crimping are fixed.In addition on supporter 300, also have locating

hole

312,1900,2000, they respectively with two projectioies 1012 to ink tank IT location usefulness, and hot melt matches by the fixing positioning convex 1800 and 1801 of usefulness.In addition, the

projection

2500,2600 that also has the balladeur train HC location usefulness of device main frame IJRA at the back side of supporter 300.

Supporter 300 also has the hole 320 that ink supply conduit 2200 (aftermentioned) is passed, and ink tubes 2200 can be supplied with the ink from ink tank.Wiring substrate 200 is fixing with supporter 300, is bonding with bonding agent.Recess 2400 on the

supporter

300,2400, be located at respectively positioning convex 2500 and 2600 near, and be positioned on many extended lines of

parallel groove

3000 and 3001,

groove

3000 and 3001 be arranged on the ink of having assembled spray record head front end among the cartridge IJC (Fig. 3) around on the plane, three limits.Therefore, along the foul of

parallel groove

3000,3001 in-migrations and ink etc., fall on the

projection

2500,2600 unlikely.

Cover 800 on the groove 3000, as shown in Figure 3, it forms the outer wall that ink sprays cartridge IJC, simultaneously, with the common space segment that holds ink injection unit IJU that forms of ink tank IT.

The ink supply part 600 that forms by parallel groove 3001, it is fixed on the overhanging arm of aforementioned ink tubes 2,200 one sides formation, ink conduit 1600 is connected with ink tubes 2200, and, in parts 600, inserted sealing bolt 602 for to guarantee the fixed part of ink conduit 1600 and the capillarity of ink tubes 2200.In addition, the 601st, implement the seal that ink tank IT and supply pipe 2200 seal combinations, 700 are arranged on the filter of supply pipe vessel side end.

Above-mentioned providing ink parts 600 are compression moldings, thus not only inexpensive, positioning accuracy is high, and the precision that can not produce the making aspect reduces.Because ink conduit 1600 has adopted the overhanging arm structure, can make conduit 1600 form stable impaction state, so parts 600 are more suitable for a large amount of productions with respect to above-mentioned inlet 1500.

In this example, under this impaction state, the sealing bonding agent can be guaranteed to obtain than connected state more completely from providing ink portion one side inflow.

In addition, fixing of providing ink parts 600 relative supporters 300, it is the pin that makes delivery member 600 back sides, (this pin is corresponding with the

hole

1901,1902 of supporter 300) passes the

hole

1901,1902 of supporter 300, and it is highlighted, the in addition simple hot melt of part that will protrude in supporter 300 back sides is then finished.By formed overleaf outstanding slightly part behind the hot melt, the ink injection unit IJU that is incorporated in ink tank installs the pit (not shown) place of side, thereby can make unit IJU have the correct positioning face.

(ii) about the structure explanation of ink tank IT

Ink tank is made of cartridge body 1000, ink absorber 900, cover 1100, and wherein absorber 900 covers its cover 1100 with sealing after the relative survey face insertion of the said units IJU installed surface of cartridge body again.

The 900th, be used for soaking the absorber that contains ink, be arranged within the cartridge body 1000.The 1200th, ink supply port, the unit IJU that above-mentioned each member of 100-600 is formed supplies with ink, simultaneously before said units IJU is assembled to 1010 positions of cartridge body 1000, injects inks and absorber 900 is soaked by supply port 1200 and contain ink, so also be inlet.

In the present embodiment, the position that can supply with ink is atmosphere connection port 1401 and supply opening 1200.Can supply with well for making from the ink of ink tank, on body 1000, be provided with rib 2300, on lid member 1100, be provided with

rib

2301,2302, and forming the space that retains air by them, this space is extended to apart from ink supply port 1200 place, bight farthest from atmosphere connection port 1401 sides, it is very important evenly and well supplying with ink from supply opening 1,200 one side direction absorbers, so aforesaid way is extremely effective in practicality.

Rib 2300 is arranged on the back of ink tank body 1000, and it comprises four ribs that parallel with the balladeur train moving direction, is used for preventing that absorber from clinging on the surface of aft section.Part rib 2301 is corresponding with rib 2300 prolongations with 2302, is set at the inner face that covers member 1100, and forms different cutting states with 2300, retains the space of air with increase.And

part rib

2301,2302 is arranged on half following area of cover 1100 whole areas dispersedly.By these ribs, under capillary force action, can positively be directed to supply opening 1200 sides to the ink from ink supply port 1200 place, bight farthest of absorber reposefully.

1401 are arranged on and make the inner atmosphere connection port that is communicated with atmosphere of cartridge on the cover, 1400 be 1401 interior settings accommodate the fluent material parts, in order to prevent from the atmosphere connection port leak ink.

The ink receiving space of above-mentioned ink tank IT is a cuboid, and when its long limit was positioned at the side, the effect of above-mentioned rib was just better.Move on the parallel direction when the long limit of receiving space is positioned at balladeur train, or it owing to be provided with rib on the whole area of lid member 1100, can make the ink of absorber 900 stably supply with when being cube.Accommodate ink as much as possible for making in limited space, cube is more suitable.And the ink of accommodating in order to make is not used for record lavishly, and as mentioned above, near near two faces the container bight, the rib that above-mentioned effect is set is very important.

In the present embodiment, the

rib

2301,2302 of ink tank IT inner face, be the evenly configuration of thickness direction of the ink absorber 900 of relative moment body shape, this structure is with respect to the ink consumption of absorber integral body, atmospheric pressure is evenly distributed, and almost do not have ink residual, thereby be important structure.

In addition, if describe the technological thought of these rib configurations of design in detail, promptly, on cuboid is dimetric, subpoint with the ink supply port 1200 of ink tank is the garden heart, and is that radius is drawn the garden arc to grow the limit, to being in the absorber outside the arc of garden, in order to make it can reach atmospheric pressure state in early days, be very important at the described rib of the arranged outside of garden arc.At this moment, if the atmosphere connection port of container 1401 is positioned at the scope of the rib configuration that atmosphere can be imported, then can not be subjected to the restriction of this routine situation.

In this example, the back that makes ink spray cartridge IJC record head is plane, required space minimized when this formation not only made the device assembling, and the amount of accommodating of ink is maximized, such structure has not only reached the purpose that makes equipment miniaturization, also has the advantage of the replacing frequency that reduces cartridge.Add ink injection unit IJU and made integral body, the rear part in its space just can be utilized, form the ledge of atmosphere connection port 1401 at there, the inside of this protuberance is made empty, thereby formed and in aforementioned absorber 900 whole thickness, supply with atmospheric space 1402.Just can provide unprecedented high-quality cartridge by such formation.

Above-mentioned atmospheric pressure is supplied with space 1402, not only big than space in the past, and because atmosphere connection port 1401 is positioned at the top, when any abnormal conditions occurring, even ink breaks away from absorber, this atmospheric pressure is supplied with space 1402 also can keep a period of time with ink, thereby guarantees that it is absorbed body and reclaims, so the not cartridge of wasted ink can be provided.

The structure of the installed surface of the said units IJU of ink tank IT as shown in Figure 4, L1 is the almost straight lines that parallel with the carrying datum level of bottom surface ink tank IT or balladeur train 400 aspis centers by orifice plate.2 positioning convex 1012 that combine with the hole 312 of supporter 300 are positioned on the L1 straight line.The thickness of the aspect ratio supporter 300 that this is protruding is more lower slightly, in order to supporter 300 is positioned.

At drawing cathetus L ₁Extended line on, the ratchet 2100 with 90 ° of angle faying faces 4002 of the hook 4001 of balladeur train location usefulness combine is used in balladeur train positioning action masterpiece and comprises this straight line L ₁And the plane parallel with the said reference face in.

As described in the explanation of subsequent figures 5,, thereby become a kind of respond well structure owing to these reasons make the location of ink tank itself and the location of record head ejiction opening have same precision.

The protuberance 1800,1801 of ink tank is corresponding with the fixing

hole

1900,2000 towards the ink tank side on the supporter 300 respectively, and it is longer slightly than above-mentioned projection 1012, thereby supporter 300 is fixed on this side.L ₃Be and straight line L ₁Perpendicular and the straight line by jut 1800, L ₂Be and straight line L ₁Perpendicular and the straight line by jut 1801.Since above-mentioned supply port 1200 be centered close to straight line L ₃On, therefore make that the bonding state of supply port 1200 and supply pipe 2200 is stable, can also alleviate because of falling and impact load, so be desirable structure its bonding state.If straight line L ₂, L ₃Inconsistent, because of on the periphery of the projection 1012 of the ejection oral-lateral of record head IJH, projection 1800,1801 being arranged, so the location of the container of the IJH of record head is produced the effect that strengthens.Use L ₄The curve of expression is the outer wall position when ink supply part 600 is installed.Because projection the 1800, the 1801st is along this curve L ₄, thereby, also have sufficient intensity and positional precision with respect to the weight of record head front-end architecture.

The 2700th, ink tank IT convex shoulder in front, it is inserted in the hole of header board 400 of balladeur train HC, and it is provided with during extremely disadvantageous mutation displacement for ink tank produces.The 2101st, the pin of balladeur train HC; be positioned near the excellent (not shown) of balladeur train HC; and the installed position that circles round of cartridge IJC be inserted into this rod below; as hereinafter described; and even effect upwards, that make the impact power that balladeur train throws off from the position of location is arranged, this protection also can make it keep installment state with member 2101.

Ink tank IT after unit IJU is mounted, covers with lid 800, except that lower opening, forms the shape of surrounding unit IJU.Spray cartridge IJC for ink, because of it is loaded on the balladeur train HC, its lower opening and balladeur train HC are close, so form besieged space, four sides in fact.Because this surrounds the heating of the record head IJH in the space, therefore this space has become an effective keeping warmth space, to long-continued use, just have temperature rise slightly, for this reason, in this example in order to help the natural heat dissipation of supporter, top at cartridge IJC, be provided with length less than the long slit 1700 in above-mentioned space, it can prevent temperature rise, can make the whole uniformity of temperature profile of unit IJU simultaneously and is not subjected to the influence of environment.

After ink injection cartridge IJC is assembled, ink is supplied with ink from cartridge inside through supply port 1200, the introducing port that is located at the hole 320 on the supporter and is located at supply container 600 back sides for 600 li to supply container, ink is by behind its inside, by the ink introducing port 1500 of a suitable supply pipe and belt grooves top board 1300, flow to shared liquid chamber again.In the coupling part of above-mentioned ink via, disposed such as obturators such as silicon rubber or buttress rubbers, in order to seal, to guarantee the supply of ink via.

In this example, top board 1300 is that it is put in the metal die with orifice plate 400, and carries out global formation simultaneously with the resin of the polysulfide that good anti-ink performance is arranged, polyether thiourea acid esters, polydiphenyl ether, polypropylene etc.

Global formation as described above is part in addition, makes providing ink member 600, top board 1300, the integrated member of orifice plate 400 and ink tank body 1000, and it not only makes the precision of assembling reach high level, and the utmost point has improved the product quality of mass production effectively.Part number of packages ratio is firmly may reduce, so can give play to desired characteristic really.

Shape after this routine above-mentioned assembling, as Fig. 2-shown in Figure 4, providing ink part 600, its upper part 603 and ink tank IT have between the end 4008 of container top of slit 1700, formed slit S as shown in Figure 3, cover the connecting of its lower face 604 and ink tank IT below between the side end 4011 of record head of 800 thin-plate element, form the slit (not shown) identical with above-mentioned slit S.Slit between these ink tanks IT and the ink feed member 600 has in fact more promoted the thermolysis of slit 1700, even and ink tank applied unnecessary pressure, also can prevent from these pressure are fed through to ink injection unit IJU.

In a word, the said structure of present embodiment is the structure from unprecedented mistake, and it all has independent effect separately, and combining also is the organic textural association of each inscape.

(iii) ink sprays the installation instructions of the relative balladeur train HC of cartridge IJC

Among the 5th figure, the 5000th, the platen roller, it leads recording medium P upward from the below of paper.Balladeur train HC moves along platen.In the platen side of the front of balladeur train HC, be provided with for this reason

Baffle plate 4000 (thickness is 2mm), it is positioned at the front that ink sprays cartridge IJC;

The flexible sheet 4005 that has flange 2011, the flange 2011 on it is corresponding with the flange 201 on the wiring substrate 200 of cartridge IJC;

Electrical wiring supporting plate 4003 is used for fixing rubber sheet gasket 4007, and the elastic force that this rubber sheet gasket produced compresses flange 2011 from the back side of thin plate 4005;

Location hook 4001 is used for that ink is sprayed cartridge IJC and is fixed on record position.

Have two location raised faces 4010 on the baffle plate 4000, they distinguish corresponding with the

aforementioned locator protrusions

2500,2600 on the supporter 300 of cartridge.After cartridge was installed, this raised face 4010 was subjected to the effect of heavy straight power, therefore, in baffle plate 4000 front platens one side, is provided with a plurality of reinforcements towards this vertical direction (scheming not shown).The anterior locations L of these reinforcements when cartridge IJC installs ₅Slightly to platen one side-prominent (about 0.1mm), thereby form the protection protuberance of record head.

Electrical wiring supporting plate 4003 is provided with a plurality of reinforcements 4004, and they and aforementioned reinforcement direction are perpendicular, and from platen one side to location hook 4,001 one sides, their outstanding length reduces in proportion gradually.Like this, just can make cartridge inclined when mounted.As shown in Figure 5.

On supporting plate 4003, for making electric contact condition stable, have two locating surfaces 4006 corresponding with raised face 4010, they are positioned at location hook one side, impose active force to cartridge, its force direction is opposite with the action direction of 4010 pairs of cartridges of aforementioned two location raised faces.Between two locating surfaces, form the boss contact zone, also determined boss (the ボ Star チ) deflection of the rubber sheet 4007 of the band boss corresponding simultaneously uniformly with flange 2011.These locating surfaces are fixed in the position of writing down with cartridge IJC, and its surface with circuit board 200 are contact the dress attitude.In this example, because the boss 201 of circuit board 200 is aforementioned relatively straight line L ₁Be symmetrically distributed, thus can make each boss on the rubber sheet 4007 have consistent deflection, so that the contact pressure of boss 2011 is more stable.Boss 201 in this example be distributed as upper and lower two rows, vertical two row.

It utilizes the mobile space of a slotted hole that matches with fixed axis 900 stay hook 4001,, moves to the left along platen 5000 after the counter-clockwise direction revolution from position shown in the figure again, just can make ink spray the relative balladeur train HC of cartridge IJC and locate.Moving of stay hook 4001 can be adopted any way, and being best with structures such as control levers.In a word, when stay hook 4001 revolutions, cartridge IJC is just to the platen side shifting, make locator protrusions 2500,2600 also to moving simultaneously, move to the left, 90 ° of hook faces 4002 on it are close on 90 ° of faces of ratchet 2100 of cartridge IJC by stay hook 4001 with the locating surface 4010 contacted positions of baffle plate, simultaneously, making cartridge IJC is that the center goes back in horizontal plane with the contact zone between locating surface 2500 and 4010, last, is in contact with one another between the boss 201 and 2011.Therefore, when stay hook 4001 at institute's allocation, promptly after the fixed position is stabilized, just reached the contact between following parts simultaneously: be fully between the boss 201 and 2011 and contact, be complete contact condition between the locating surface 2500 and 4010, link up with 90 ° of faces 4002 and contact with 90 ° of faces of cartridge ratchet, the face that forms circuit board 200 and locating surface 4007,4008 simultaneously contacts, thereby has finished cartridge IJC installing and fixing on balladeur train HC.

(iv) install the brief description of main frame

Fig. 6 is the skeleton diagram that has loaded the ink jet recording IJRA of cartridge, balladeur train HC has steady pin (scheming not shown), its helical 5004 with guiding leading screw 5005 matches, and this leading screw 5005 is to drive and rotate by transmitting gear 5011,5009 with the driving force of the positive and negative rotation interlock of CD-ROM drive motor 5013.Thereby balladeur train HC is moved around on arrow a, b direction.The 5002nd, pressboard, it on the balladeur train moving direction letterweight to platen 5000.5007, the 5008th, photoelectrical coupler is resting position testing agency, and whether the control lever 5006 that is used to confirm balladeur train HC and switches the direction of rotation of motor 5013 in this zone.The 5016th, cover supporting member at the lid member 5022 of record head front, the 5015th, attract the attraction mechanism of this lid inner face, it sucks back original position by lid inner opening 5023 with record head.The 5017th, cleaning balde, the 5019th, the member that this cleaning balde 5017 can be moved forward and backward is fixed on the main frame support plate 5018.Self-evident, the known cleaning balde of non-above-mentioned shape also can be used for this example.The 5021st, be used to the connecting rod that begins to suck back, it moves with the cam 5020 that combines with balladeur train HC, and the driving force of CD-ROM drive motor moves control by well known organizations such as clutches.

These add a cover, clean, attract to recover etc. to constitute in the following manner, promptly when balladeur train HC moves on to resting position one side, utilize the effect of guiding leading screw 5005, make each parts carry out desired operation in corresponding position separately.But make the action that they expect with known timing technology, concerning this example, also be suitable for.No matter various structure recited above independent or combine, all be very good invention, and provided and be applicable to good structure embodiment of the present invention.

To utilize Fig. 1 and Fig. 7 each figure afterwards that the present invention who is applicable to above-mentioned Fig. 2 to Fig. 6 is described in detail below.

Fig. 1, Fig. 7 to Figure 15, and table 1 and table 2, that shown is the 1st embodiment of the present invention.Among Fig. 1, the 1st, ink tank IT, the 2nd, the record head IJH that combines with ink tank, as shown in Figure 7, ink tank 1 and record head 2 are made monolithic devices and constitute a detachable cartridge, the 3rd, this cartridge is installed in balladeur train HC on the printer host, the 4th, to this balladeur train, at the guide of the enterprising line scanning of sub scanning direction, the 5th, platen is with so that scanned along main scanning direction by printed matter (representing with P), the 6th, through the pulsed current signal of the activation record head 2 of balladeur train 3 and the flexible cable of temperature adjustment current delivery, the 7th, printed circuit board (PCB) has the electric loop of controlling printer, and the 8th, measure the wherein sensor of environment temperature.Fig. 7 represents a detachable cartridge, the 9th, and the nozzle that the ejection ink droplet is used.

Fig. 8 is the thin portion key diagram of record head 2, on supporter 300, be provided with the heater plates made from semiconductor fabrication process 100, on this heater plates 100, be provided with again form by same semiconductor fabrication process, to record head 2 be incubated, the heater for regulating temperature (heat up and use heater) 10 of temperature adjustment.200 are provided in a side of the wiring substrate on the aforementioned supporter 300, and this wiring substrate 200, temperature regulating heater 10 and ejection are carried out distribution (distribution not shown in the figures) with heater 13 by terminal conjunction method.Temperature regulating heater 10 and heater plates 100 are attached on the supporter 300, as shown in Figure 9 by other processing methods.

The 14th, the steam bubble that ejection produces with heater 13 heating, the 15th, the drop of ejection, the 12nd, shared liquid chamber is used for making the ink of ejection usefulness to flow in the record head.

Below the temperature controlled overview of the open loop of embodiment 1 is done an explanation.

In this embodiment, for the record head temperature being controlled at, adjustment before the lettering and the adjustment in the lettering process have been carried out according to the deep or light fixed target temperature place of ejection feature that waits of lettering.Temperature adjustment before the lettering is meant according to last time lettering institute elapsed time (stand-by period, non-lettering time) and environment temperature at that time and determines the heat that adds of temperature regulating heater, and soon heating before the lettering.Heating in the lettering process is to determine to add heat according to lettering elapsed time and environment temperature at that time, and heats in the lettering process.In addition, in the so-called lettering process, singly be not meant actual moment of carrying out lettering (lettering is with between the period of heating of heater), also be included as a series of actions time of carrying out lettering, as the acceleration of balladeur train, between deceleration period, required return interval etc. during the twocouese lettering.

Temperature adjustment tables of data before table 1. lettering

Temperature adjustment tables of data in the table 2 lettering process

The tables of data of used control parameter when table 1 and table 2 have provided before the aforementioned lettering temperature adjustment in the temperature adjustment and lettering process, it is stored among the ROM.In each table, 100% expression drops into the energy maximum, and 0% expression does not drop into energy.In the present embodiment, be that control the energy input amount conduction time (width of heating pulse) with temperature regulating heater, temperature adjustment before lettering, about 6 seconds of maximum duration, to temperature adjustment in the lettering process, about 120 milliseconds.In addition, it is also passable that control energy input amount with energising voltage conduction time as required, and simultaneously utilize also passable with energising voltage conduction time.

No matter temperature adjustment before the lettering or the temperature adjustment in the lettering process, environment temperature is low more, and required intensification amount is just big more, so that temperature near target temperature, therefore needs to set bigger energy input amount.In addition, when lettering temperature adjustment before, the stand-by period is long more, considers the heat radiation of record head, just should set bigger energy input amount more, so that the record head temperature is near target temperature.On the other hand, during temperature adjustment, consider that the lettering time is long more in the lettering process, record head will heat up because of accumulation of heat, therefore should set less energy input amount.

According to the above temperature control of carrying out,, also can make the temperature of record head be controlled at target temperature even do not adopt closed loop in the past to control.Below, control is described in detail to temperature.

What Figure 10 represented is, before only carrying out described lettering during the temperature adjustment operation, and environment temperature T _ARecord head temperature T with reality _HRelative target temperature T _OVariation.When Figure 11 has provided temperature adjustment in only carrying out described lettering process, the record head temperature T _HThe variation of target temperature relatively.

When Figure 12 has provided two kinds of temperature adjustments that reached in the lettering process before carrying out lettering, the variations in temperature of record head.

Figure 13 provides when not carrying out temperature adjustment, in the process of having only lettering itself to carry out because of the variations in temperature of the record head that causes from intensification.

Figure 14 be carried out before the lettering and the lettering process in after the temperature adjustment, an example of the record head variations in temperature during lettering.Temperature (the T of the record head that occurs in 60 seconds and 360 seconds places _H) switching, be because the cause that the data (temperature adjustment parameter) in the temperature adjustment tables of data change in the lettering process of table 2.

11st, the heat balance point temperature (T among 12 figure _E), expression be an energy of only supplying with temperature adjustment, the temperature that reaches naturally according to the thermal capacity of record head is that the data by table 1, table 2 determine.In addition the heat balance point temperature being set at a little less than target temperature, is owing to considered the intensification (heating up certainly) of record head as shown in Figure 13 self heating, and work as this temperature rise is heated on the temperature of heat balance point, just can reach the cause of target temperature.

Below to the control of the temperature of the present invention the 1st embodiment, describe with reference to the flow chart of Figure 15, the variations in temperature state of the record head that produces according to described temperature control, corresponding with the curve of Figure 14.

When power supply dropped into, at first program step S101 reset to 0 with latency counter and lettering time counter, made the initialization of control parameter.Then, wait for, import up to the lettering signal at program step S102.If lettering signal when input arranged, read the environment temperature of the temperature sensor 8 on the printed circuit board (PCB) 7 of host computer side at program step S103.Then, in the stand-by period of program step S104 read waiting time counter, before power supply dropped into, as previously mentioned, these all were reset to 0.Afterwards, at program step S105, according to stand-by period of environment temperature latency counter with reference to lettering before temperature adjustment tables of data (table 1).Because when power supply had just dropped into, not because of lettering produces temperature rise, so the record head temperature is identical with room temperature, therefore, by the output in the table, its energy should be 0-100%, compares with other stand-by period, provide bigger output.Subsequently,,, the temperature regulating heater shown in Fig. 8 10 is heated according to these output data at program step S106, make the ejection of record head chew 9 and shared liquid chamber 12 heat up.In the present embodiment, environment temperature is low more, and the intensification amount is big more, so it is by becoming big and elongated the setting.

After energising is over, wait for just beginning lettering about 1 second, though at this moment in the record head extremely uneven Temperature Distribution diffusion takes place also has no relations, at this time point, program division S107 resets to latency counter.

Then, at program step S108 counter start-up time, program step S109 carries out the lettering of initial delegation.

Program step S110 carries out the reading of lettering time of time counter, according to environment temperature program step S111 temperature adjustment tables of data (table 2) in this read value and the lettering process is contrasted.The lettering time counter has almost just no longer been counted after lettering begins immediately, so according to environment temperature, data output is 0-100%, compares with other count value, should do bigger output.

Then, according to the content of lettering signal top data are carried out the correction of temperature adjustment condition.At first, program step S112, S113 revise when line feed (LF).Do not produce lettering during because of line feed from heating up, do not enter a new line continuously if do not carry out temperature adjustment, then the temperature of record head can sharply descend.In addition, extremely short because of the line feed required time again, if do not carry out any correction by above-mentioned output data, then the energy input amount of unit interval will be excessive.

For this reason, present embodiment has provided the program of correcting parameter, promptly supplies with 1/10th energy of former output data to record head to just whenever once entering a new line.

After this, program step S114, S115 carry out the correction of temperature conditions according to the length of main scanning direction delegation.In the present embodiment, also adopted in the accelerating period of the balladeur train of lettering possible range both sides, the structure that temperature regulating heater is switched on, therefore, when balladeur train amount of movement hour, the energy input amount of unit interval will be excessive, for this reason, provide a program, it can make when the amount of movement of balladeur train is not overall with, according to the ratio of its actual amount of movement and balladeur train overall with, provide proportional with it correction factor.

With through the above-mentioned data of having revised, program step S116 is to temperature regulating heater 10 energisings, and carries out the adjustment in the lettering process, and program step S117 carries out delegation's lettering again.When lettering was proceeded, program step S118 read the lettering time counter repeatedly.But as previously mentioned, along with the increase of lettering time, the output data on the tables of data will reduce gradually, thereby the input energy is correspondingly reduced.

At a lettering at the end, program step S119 resets the lettering time counter, and simultaneously, program step S120 has started latency counter, the time before the next lettering signal of instrumentation arrives.

Time point in next lettering signal arrival, program step S102 to S104 read waiting time counter and environment temperature, according to stand-by period of being read and environment temperature, data form according to temperature adjustment before the lettering, determine the energy size of output once more, repeat same control operation later on.In the present embodiment, latency counter count enable to 120 second, after this, then supposition turns back to environment temperature and is reset to zero.

In the present embodiment, adopted the record head of removable cartridge type, but the present invention being not limited to this removable structure, adopting the record head of the permanent type of not changing, also is effective certainly.

In the present embodiment, also adopted lettering time counter and wait (non-lettering) time counter, to carry out two kinds of temperature adjustments of temperature adjustment before temperature adjustment in the lettering process and the lettering, but, the lettering amount less equipment of using for desktop computer such as printer, it is less that its lettering of typewriter that is only limited to output character is got number of times ready, thereby just lack than illustrated by the intensification that lettering itself causes, so can be according to the output energy level of this device, only utilize and wait for (non-lettering) time counter, and the adjustment of only carrying out before the lettering is just passable.In addition, as adopting special-purpose long tape deck of the non-lettering time interval such as illustration paper, it is also passable to carry out adjustment with the lettering time counter in the lettering process.

In order to determine the size of temperature adjustment, except that the output data that count value (stand-by period, lettering time) the comparable data table according to the lettering time is drawn, also can utilize the resume of the preceding resulting output data of its lettering with the output energy.In addition, when calculating the correction factor of data, not only consider the amount of movement of one's own profession, also should consider the shifting momentum data that next line is later according to the balladeur train amount of movement.

In addition, about the heater of record head, can use known technology.Lettering time instrumentation also can the lettering line number counting and the alpha-numeric counting of lettering replace.

Said as the front, adopt the 1st embodiment, on record head, be assembled into temperature sensor can resembling in the past, and carry out closed loop thermal and control, but at this machine of tape deck one sides such as printer installing ambient temperature measuring device, and be assembled into control software, this software is according to thermal capacity that record head had and heating, the cooling characteristics of unified decision, carry out temperature control, thereby, even adopt the open loop type adjustment, also can control by desired temperature to the temperature of record head.

Especially when service recorder head and ink tank all-in-one-piece cartridge formula knockdown type record head, just do not needed to detect from the signal code of the temperature sensor of record head, the disadvantage during thereby the temperature that solves removable record head is controlled, be the performance dispersed problem between temperature sensor and the record head, thereby eliminated the discrete phenomena of lettering performance between the record head.And the tape deck that obtains having constant lettering quality.In addition, owing to from cartridge, abolished temperature sensor, thereby need the operation of the selection temperature sensor that carries out before also having omitted always, or adjust the operation of temperature sensor, thereby cost is reduced significantly as the record head of running stores.Again because of without temperature sensor, and yield rate is improved significantly, thereby can further reduce cost.

In addition, from the electric loop aspect, just there is no need again the next low current signal of detection record head, make contact exposed problems, flexible cable and the anti-static precautions of printed circuit board circuitry pattern etc. from tape deck main frame mounting or dismounting for removable cartridge, all can obtain simplifying from the tape deck main frame to record head.

Especially above-mentioned this point, concerning small-sized portable tape deck, the measures such as abundant shielding of its shell and electric loop are just unnecessary, so not only very effective but also greatly reduced the effect of cost in addition.

About the 2nd embodiment of the present invention, illustrated with reference to Figure 17 to Figure 21 and table 3 below.

The 2nd embodiment has adopted the foaming spray regime, and along with the carrying out of lettering do not generate heat and produce the recording mode of heat radiation, the open loop of the 1st embodiment is further developed, and can carry out sufficient temperature control.

In the 1st embodiment, supply with the energy size that makes its intensification of record head, be the lettering time and the non-lettering time of record head before beginning according to environment temperature, this lettering, contrast control is determined with data form.Its result then can only utilize the temperature sensor of adjusting host computer side, just can carry out the control of open loop temperature.

In the printer based on character, because of the lettering ratio of character is low, its average lettering ratio is a few percent to percent 30, as the 1st embodiment, can use lettering time, non-lettering time etc. to control parameter from the operation that printer side is measured easily.Prediction data according to host computer side are carried out the open loop temperature adjustment, just can obtain sufficient temperature prediction, and can adjust the energy input that temperature adjustment is used.

But, for printer based on the high speed image lettering, because of average lettering rate alters a great deal between absolutely in a few percent, as only controlling parameter with operations such as lettering time, non-lettering times, then the heat energy that sends with Yin Gao lettering ratio when the temperature adjustment energy selects under the situation about adding together mutually, will cause that easily intensification is too high, and meeting because of causing, phenomenons such as not spraying, fly, spray volume is too much printed bad shown in the 16th figure like that.The problem of undesired ejection such as gradation unequal will take place, thereby lacks perfection.

On the other hand, in order to prevent cross to heat up in that high lettering ratio is caused, after setting a high average lettering ratio, should consider to set thermal equilibrium temperature low when carrying out the character lettering.But if be when carrying out the lettering of the lower figure pattern of lettering ratio at this moment, owing to adopt the method for temperature control in above-mentioned open loop, the lettering process, less from heating up, so the actual temperature of record head also can produce downward drift, and causing the phenomenon of the thin and gradation unequal of concentration, this also is a weak point as the high speed image printer.

When carrying out the pattern lettering of high lettering ratio, after having printed one page, temperature will rise very highly, particularly maximum critical crossing heats up when finishing, comparing when setting average lettering ratio just needs cost cool time, for this reason, during temperature adjustment before the lettering of above-mentioned open loop control, should provide than the energy that more heats up of the required energy of lettering next time.

Below the temperature controlled summary of the open loop of embodiment 2 is illustrated.

This embodiment basically with embodiment 1, carries out temperature adjustment in the temperature adjustment and lettering before the lettering, it is characterized in that, when last time lettering finishes, the temperature of prediction record head, according to this prediction temperature to lettering before the energy of temperature adjustment revised.And its feature also is, obtains the lettering ratio in each second, according to its average lettering ratio, revises the temperature adjustment energy in the lettering.By the above-mentioned energy correction of carrying out,, produce under the situation of print image the open loop temperature control that also can suit even when carrying out the pattern lettering of high lettering ratio.

Table 3 to table 5 has provided the control parametric data of temperature adjustment in temperature adjustment before the lettering used among the 2nd embodiment, the lettering, the correction of lettering ratio etc.Table 3 is corresponding with table 2 with the table 1 of the 1st embodiment respectively with table 4.

Temperature adjustment tables of data before table 3. lettering

Temperature adjustment tables of data in table 4. lettering

Table 5 output energy correction tables of data

The output energy	0％-	6．25％-	12．5％-	25％-	50％-
Correction factor	100％	87．5％	75％	50％	0％

Figure 17 has provided when only carrying out temperature adjustment in the lettering (but correction), and the record head actual temperature is with respect to the variation of environment temperature and target temperature.Record head variation of temperature when only carrying out temperature adjustment (but correction) before the lettering is because of same as shown in Figure 5, so omitted explanation.Figure 18 provided carry out before the lettering and lettering in record head variations in temperature during two kinds of temperature adjustments (but correction).

What Figure 19 (a) represented is an example of lettering rate of change, shown in Figure 19 (b), be according to the present invention the 2nd embodiment carry out before the lettering and lettering in during temperature adjustment, corresponding to the variation of the lettering ratio shown in Figure 19 (a), the temperature variations of record head, Figure 19 (c) provides the variation of temperature adjustment energy operational ton.

The setting of Figure 17, heat balance point temperature shown in Figure 180 is than Figure 11 of the 1st embodiment, the setting height shown in Figure 12, this is because in the 1st embodiment, the heating factor certainly of record head has been considered in the setting of heat balance point temperature, and in the present embodiment, because in the temperature adjustment process in lettering, revise, so when setting the heat balance point temperature, just needn't consider.

Therefore, the input amount of the temperature adjustment energy in the lettering of present embodiment will be set higherly than embodiment 1.

Below, the flow chart that the temperature of the 2nd embodiment of the present invention is controlled with reference to Figure 20 is illustrated, controls corresponding record head temperature variations with this temperature, as shown in figure 19.

At first, when power supply drops into, resets that resets (program step S201) such as latency counter, lettering time counter, lettering pulse counter and correction factor memories, the control parameter is carried out initialization, and wait for up to lettering signal input (program step S202) is arranged.

When the lettering signal is imported, read the environment temperature T (program step S203) that measures with temperature sensor 8 on the host computer side printed circuit board (PCB) 7.Then, read prediction temperature T when last time lettering finished _FINI(back will describe in detail) (program step S204), the stand-by period t of read waiting time counter again _w, and point at this moment, as previously mentioned latency counter is reset to " 0 ", afterwards, according to stand-by period t _wWith environment temperature T, with reference to the tables of data (table 3, table 4) (program step S205) that reaches temperature adjustment in the lettering before the lettering.

At this moment, because of there not being the intensification of lettering, thus identical with room temperature, by the temperature adjustment energy P before the lettering _PreoThe output data of decision, corresponding to environment temperature, strain is 0-100%, and is bigger than the output valve of other stand-by period.(program S206).

Then, according to the output tables of data, calculate the preceding temperature adjustment operational ton P of lettering _Pre=P _Preo* f (T _FINI) (program step S207) temperature T of function f prediction when last time lettering finished wherein _FININegative dependency relation is arranged.According to the operational ton P that calculates _Pre, temperature adjustment shown in Figure 7 is heated with heater 10, and makes the

nozzle

9 and 12 intensifications (program step S208) of shared liquid chamber of record head 2.In the present embodiment, temperature is low more, and it is long more that the time of energising is just set.After energising finishes, wait for about 1 second, the extremely uneven Temperature Distribution that forms in the record head is spread.On this time point, latency counter is resetted (program step S209), start lettering time counter (program step S210) simultaneously.

Then, according to the content of lettering signal, initial operation amount P in the resulting lettering among the corresponding program step S206 _LINEO, revise the temperature adjustment condition.

At first, press the length of the delegation of sub scanning direction, carry out the correction of temperature adjustment condition, same with program step S114, S115 (the 15th figure) among the 1st embodiment, calculate energy correction factor L, this coefficient is to be used for multiplying each other with the proportional correction factor of ratio of the actual relative balladeur train overall with of balladeur train amount of movement.(program step S211).

Then, ejection pulse, lettering during a second of the lettering content of need lettering counted count, and calculate at average lettering ratio (lettering energy rate) (program step S212) during this period.

Then, according to the average lettering ratio of per second, calculate the correction factor P of output energy ₁And P ₂(program step S213), wherein energy correction factor P ₁, be the correction factor of low-response, be the mean value of being got according to the average lettering ratio of per second in the past 100 seconds, and P ₂Being the energy correction factor of high response, is the mean value of being got according to the average lettering ratio of the per second in past 10 seconds.This correction factor P ₁And P ₂, under any circumstance can obtain with reference to the data form shown in the table 5 according to each lettering average ratio.

According to above-mentioned data, calculate temperature adjustment operational ton P in the lettering then _LINE, it is in the present embodiment:

P _LINE=P _LINEO* P ₁* P ₂* L, (program step S214).

As previously mentioned, P wherein _LINEOBe the initial operation amount of temperature adjustment in the lettering, correction factor L is aforementioned correction factor to the balladeur train amount of movement, all correction factors all between 0 and 1 (0%-100%) by standardization.From following formula as can be known, at low-response or high average lettering ratio height and the correction factor P that responds ₁Or P ₂Under the little situation, because temperature adjustment operational ton PLINE diminishes in the lettering, so can prevent that crossing of temperature adjustment process heated up in the lettering.Afterwards, same with program step S112, the S113 (Figure 15) of embodiment 1, line feed (LF) signal is carried out temperature adjustment condition correction (program step S215).

For this reason, make a revision program, promptly every line feed delegation just supplies with temperature adjustment operational ton P in the original lettering to record head 2 _LINE1/10th energy (program step S216), to revise.

Then, according to these data of having revised,, and carry out delegation's lettering (program step S218) to temperature regulating heater energising (program step S217).At this moment, start latency counter (program step S219), the prediction temperature T when lettering is finished _FINIStorage is got up (program step S220), according to energy correction factor P ₁The parameter of (low-response), the prediction temperature T when finishing by following formula calculating lettering _FINI,

T _FINI=target temperature * K (0.3+P ₁)

(wherein: K is suitable coefficient)

As (0.3+P ₁)＜1 o'clock, then T _FINI=target temperature.Its result is as the energy correction factor P of low-response ₁Surpass and to carry out long-time continuous under 0.7 the situation when carrying out high lettering ratio lettering, might produce phenomenon, for this reason, when next lettering begins, utilize stand-by period t above target temperature _wCalculate the preceding temperature adjustment energy P of lettering _Preo, to prevent to produce error.

When proceeding lettering, repeatedly carry out control operation shown in Figure 20 once again.In this case, the count value of latency counter increases hardly, and is therefore as shown in table 3, and concerning any environment temperature, its output energy all should be 0, so can carry out temperature adjustment before the lettering to every capable lettering.When lettering finishes (program step S222), on the time point that next lettering signal arrives, repeat control shown in Figure 20 again.

In the present embodiment, after latency counter count down to 120 seconds, just supposition had returned to environment temperature, and was reset to zero.

Figure 21 is expressed as the temperature controlled control system block diagram of carrying out above-mentioned the 2nd embodiment, and it is applicable to embodiment 1. too.

Among Figure 21, the 20th, send the master processor of the computer of command signal and lettering signal etc., the 21st, the counter of forming by latency counter lettering time calculator, lettering pulse counter etc. as counting mechanism, the 8th, as the sensor of the temperature survey mechanism of instrumentation environment temperature, the 25th, the driving mechanism of record head is simultaneously as the intensification mechanism to the record head heat temperature raising.The 22nd, as the control module of temperature control device, the lettering of general ink jet recording is controlled according to the program of storage in the read-only memory (ROM) 24.In addition, control module 22 also according to each self-metering result of sensor 23 sum counters 21, by head driver 25, is adjusted the temperature adjustment energy that record head 2 heats up.

In addition, in the present embodiment, be that temperature adjustment two sides carry out adjustment before utilizing lettering time counter and wait (non-lettering) time counter to temperature adjustment in the lettering and lettering, but, when using special-purpose illustration paper or non-lettering time during long tape deck, also can be only with the printing counter and the mode of only carrying out temperature adjustment in the lettering.

Measurement for the lettering time, can replace the counting of lettering counting, lettering number of words, in addition, also can be the calculating of the calculating of one second average lettering rate as the average lettering rate of each row, as for the average computation mode, also can adopt other averaging methods such as weighting.

And the average lettering rate of low-response also can be in the past during 100 seconds, per 10 seconds average lettering ratio is averaged asks.In the above-described embodiments, the correction tables of data of low-response and high response can be general, also can differ from one another.

Temperature adjustment operational ton P before the relevant lettering _Pre, use the correction factor P that repaiies ₁, P ₂Replace function f (T _EINB) revise good.

As previously discussed, according to the 2nd embodiment, owing to control temperature adjustment power by the lettering ratio, so on the effect of the 1st embodiment, increased again also and can carry out high-precision temperature controlled effect to the big graphic printer of lettering rate of change.

In addition, owing to be to control temperature adjustment power according to low-response and high both lettering ratios of response, so to either way being suitable for that the lettering ratio slowly changes with jumpy.

The 2nd embodiment is the lettering ratio control temperature adjustment power according to low-response and high response, but also can be according to wherein a kind of.Can also obtain the lettering ratio of medium response in addition, also passable according to low middle and high response lettering ratio.

Below, 22 to Figure 26 and table 5 with reference to the accompanying drawings, and the 3rd embodiment of the present invention is described.

In the 3rd embodiment, even if the sensor of testing environment temperature the position is set, departed from the set position of record head physically, also can carry out the higher temperature control of precision.

Above-mentioned the 1st embodiment of the present invention has adopted the prediction control mode, promptly in the body apparatus side of device recording head, rather than the temperature sensor of instrumentation environment temperature is set in the record head side, the thermal time constant and lettering time and the non-lettering time that are determined according to record head thermal capacity, the temperature of prediction record head goes to control the temperature controlling amount.

Like this, the record head side has not just been adorned temperature sensor, and the one-tenth instinct as the record head of running stores is descended significantly, especially does under the situation of the removable cartridge that is integral when record head and ink tank, and advantage is just more outstanding.

Yet, in the 1st embodiment, the position that the sensor of testing environment temperature is set, the position that is provided with record head on principle is that physics separates.Therefore the temperature that has temperature sensor and detected, the situation that does not have the temperature of the set position of correct expression record head, internally be equipped with under the situation of circuit etc., owing to making built-in temperature, its heating rises, but the rising of built-in temperature is different and different with the position, because the grade of the thermal time constant of temperature sensor and record head is different fully, if environment temperature sensor and record head, be placed on the identical place of built-in temperature, behind the power connection, though through after a while final they can to become temperature identical, but before this, in fact record head is provided with between the temperature of position and the environment temperature sensor and has produced small error, in the 1st embodiment, determine the temperature control parameter of prediction control with the original data that produce error for this reason, but,, can find that also the word concentration of being printed is inequality even if during with identical body apparatus and identical recordings head.

Below will the open loop temperature control of the 3rd embodiment be described, this embodiment is according to the conduction time of body apparatus or the conduction time that produces the machine inner member of heating, the temperature control parameter that correction was determined by environment temperature and lettering time, non-lettering time etc., then the error of the time difference caused record head prediction temperature of temperature temperature rise places different in the above-mentioned machine and different thermal time constant is carried out revisal, and carry out correct temperature control.

Figure 22 represents to heat up near the temperature sensor of instrumentation environment temperature the machine and actual temperature that should the time record head.This figure represents that also heating portion separates data when heating up in the record head is inorganic with record head.

Figure 23 represents to heat up near the temperature sensor of instrumentation environment temperature the machine and actual temperature that should the time record head, and this figure is the data of record head when heating up in organic.

Under near the situation that record head, does not have to heat up in the machine, it only presses the environment temperature of the preceding temperature adjustment of lettering and the record head actual temperature of relative target temperature, change basic data, its with Figure 10 represent identical, and only by the basic data of temperature adjustment in the lettering and Figure 11 represent identical, and it is same as shown in Figure 12 only to press before the lettering in the temperature adjustment and lettering the basic data of temperature adjustment.

Equally, not temperature adjustment and only when lettering, utilize lettering and the record head variation of temperature that causes with shown in Figure 13 identical.

Table 6 be with the corresponding machine of Figure 22 in the correction chart that heats up, and to the used data of temperature adjustment in temperature adjustment before the lettering and the lettering, with aforesaid table 3, table 2.

The 6th table

Heat up the correction time in the machine	The 0-2 branch	The 2-5 branch	The 5-15 branch	The 15-30 branch	30 minutes-
Correction value	0℃	-2℃	-4℃	-6℃	-7℃

Following flow process with reference to Figure 24 is controlled the temperature of the 3rd embodiment of the present invention and is described.Because the record head variations in temperature that temperature control is produced is identical with above-mentioned Figure 14.

At first, when power supply drops into, latency counter, lettering time counter are resetted and put, heat up in the starter motor and revise timing (program step S301), up to the input of lettering signal is arranged then in program step S302 wait.

When the lettering signal was imported, starting lettering time counter (S303 step) read the measured environment temperature of temperature sensor 8 on the host computer side printed circuit board (PCB) 7 in program S304 goes on foot.Intensification correction time value in S305 step reading machine goes to revise the environment temperature that is read in the step at S304 in the S306 step according to this value.This correction value is pressed interior intensification of machine of table 5 and is revised data.

Table 6 is the correction charts that heat up in the machine corresponding to Figure 22, but to the sort of situation of Figure 23, also can deduct the temperature of environment temperature sensor the data of the temperature of record head, sends into correction card.Go on foot the stand-by period of read waiting time counter again at S307, and after power supply drops into, reset like that as described above and put 0.In S308 step, according to the environment temperature of having revised and the stand-by period of latency counter, with reference to table 3.In the S309 step, the output data heating temperature adjustment heater 10 according to table 3 heats up the nozzle portion 9 of record head and common liquid chamber 12.When energising finishes, latency counter be reset (S310 step).

The lettering time, lettering time counter of reading the lettering time counter then in S311 step, counting is progress not almost after lettering begins.The tables of data of temperature adjustment in S312 goes on foot according to lettering is determined benchmark output data.

According to the content of lettering signal, these data are carried out the correction (S313-S316 step) of temperature adjustment condition again, the S312-S315 step of these steps and Figure 15 is identical, and has omitted explanation.

According to these data of having revised, give temperature regulating heater 10 energisings, carry out temperature adjustment in the lettering (S317 step), finish delegation's lettering (S318 step), at first answer bootwait time counter (S319 step) at this moment.

When continuing lettering, after the step, use program step S311 through S320, read repeatedly

The time of lettering time counter,, should reduce the input energy of data by temperature adjustment table in the lettering with the increase of lettering time.

In addition, if lettering continuously because the count value of latency counter increases hardly, is pressed shown in the table 3, under any environment temperature, its output all is 0%, so the temperature adjustment before lettering is not carried out in every provisional capital.

On the time point of a printing ending, the lettering time counter is resetted (S321 step), utilize latency counter simultaneously, to carrying out instrumentation to the time of lettering signal arrival next time.

Then, on the time point that the lettering signal arrives next time, heat up in the content of read waiting time counter, environment temperature and the machine and revise tables of data (S304-S307 step), equally, press the preceding temperature adjustment tables of data of lettering and determine the size (S308 step) of output energy again, below will repeat same control.

In the 3rd embodiment, the program of the form of revising sensor portion temperature is arranged, this program is only revised the environment temperature sensor portion and the record temperature difference that head produced.Be the temperature difference of amendment record head, also can be according to revising data form, the insulation electric current that control is flowed is revised according to the temperature rising identical with environment temperature sensor portion, so also can obtain same effect.

In addition, even not according to correction card correction insulation electric current, as shown in figure 25, owing at record head stream Weak current is arranged during the power connection, institute is so that the temperature rising that it produces and environment temperature sensor portion is about the same, and correction also can like this.

This small electric current and software are irrelevant, and it has given earlier the corresponding electric current of thermal time constant according to the temperature-raising characteristic of determined and record head during power connection, circulating.Can be described as temperature correction corresponding to the power connection time.

But, in this case, want the temperature of record head is made and the temperature of environment temperature sensor identical being difficult to of rising, because the temperature of environment temperature sensor rises because of there being factors such as cross-ventilation, base plate heat transfer, they are more than the heating complexity of record head itself, so only revise also just enough by temperature rise in the machine.

The foregoing description serves as main to consider to generate heat with the power connection time, but also can use with the power connection asynchronism(-nization) other, as considering to generate heat the conduction time that sprays the driver of usefulness with controls such as the used transistor of lettering, integrated circuits.

In this case, in the machine of the conduction time of the transistor of using according to temperature rise correction data in the power supply unit machine of conduction time with according to lettering etc. temperature rise correction data and, revise the temperature value of the temperature sensor portion that is read, can obtain definite correction thus.

In the printer with the AC power action, connect the plug of AC power, after the energising of main power source portion, control part carries out initialization, but actual lettering is the connection at power switch (soft switch), just carry out after each energising of body, to this printer, main power source portion is called hardware power turn-on time conduction time, and being called the software power-on time conduction time of each one behind the in fact soft switch connection, when they caloric value not simultaneously, respectively instrumentation hardware power turn-on time and software power-on time are corresponding with the elapsed time separately, from correction chart separately the deduction correction value and consider that heating is also passable.

Figure 26 is the figure of the interior temperature rise of the above-mentioned printer machine of explanation and its corrective action, table 7 and table 8 expression are corresponding to the temperature correction chart of hardware power turn-on time and software power-on time, from figure, can clearly be seen that, correction temperature shown in table 7 and the table 8 is set with respect to heating up (sensor temperature △ T) in the machine, thereby can carry out high-precision intensification correction.Wherein, soft, hardware power maximum instrumentation to 60 turn-on time minute when surpassing above-mentioned value, then keeps this value.

The 7th table

Hardware power turn-on time	0 minute-	10 minutes-	20 minutes-	40 minutes-	50 minutes-
Revise temperature	0℃	-0．5℃	-1℃	-1．5℃	-2．0℃

The 8th table

The software power-on time	0 minute-	2 minutes-	5 minutes-	10 minutes-	30 minutes-
Revise temperature	0℃	-1．0℃	-1．5℃	-2．0℃	-2．5℃

In addition, on having added after the temperature rise correction of note, can also add the correction of above-mentioned conduction time according to transistor, motor.

During the software power-on, when lettering terminates, can consider heating by the reverse temperature of deduction according to software power-on time, lettering time.

In Figure 26, when software power disconnects, (can reset timing turn-off time of software power), the time timing that the supple-virtuosity rate is connected count down to counting and is over when zero opens, and to carry out instrumentation to the turn-off time of the software power till software power is switched on once more.Then the correction temperature when software power cuts off the power supply, deduction is according to the turn-on time of supple-virtuosity rate of the temperature value after with reference to the resulting correction temperature of table 8, as final correction temperature.For example: the correction temperature the when software from Figure 26 cuts off the power supply is-2.5 ℃ of beginnings, after 10 minutes, when connecting the software power switch once again, resulting correction temperature-2.0 from table 8 ℃ resulting 0.5 ℃ of deduction back from revise temperature-2.5 ℃, as final correction temperature.

As mentioned above, even do not utilize the temperature sensor that is assembled on the record head to carry out closed loop thermal control according to the 3rd embodiment, and the mechanism for testing of environment temperature is set in this body examination of tape decks such as printer, the instrumentation mechanism of conduction time is set on the heater element of body apparatus again, by revising the measured value that obtains by the above-mentioned environment temperature of mensuration mechanism, use the open loop temperature adjustment again, compare, also can correctly be controlled at the temperature of record head in the temperature desired with the closed loop temperature adjustment.

In addition, utilize this correction, to the joining cloth relatively and can freely design of temperature sensor, tellite, record head, thereby the raising that the free degree of device design is led to a leap.

By carrying out the environment temperature correction conduction time of the part that can generate heat in conduction time in the body apparatus and the machine, and the place of heating up according to built-in temperature is poor, time difference of producing because of the difference of thermal time constant, prediction temperature to record head is carried out revisal, so can realize correct temperature control.

The present invention further is subdivided into the detection boundary of employed temperature sensor, for example 1 degree unit, 0.5 degree unit, and, then utilize revise conduction time to its following unit, so can reach stable recording status.

Following with reference to Figure 27 to Figure 29 and table 9 explanation the 4th embodiment of the present invention.

Present embodiment is implemented to realize that shown is according to the revisal of balladeur train amount of movement (program step S114, S115, S211, S315, S316) example of outside other by the 1st to the 3rd to the temperature adjustment in the lettering.No matter among that embodiment, the timing that temperature adjustment is switched on heater 10, as shown in figure 27, be the oblique line rising (ラ Application プア Star プ) quickened of the balladeur train in the both sides of lettering possible range during.But temperature adjustment before carrying out lettering, the temperature adjustment time (heater conduction time) then carried out before the accelerating period when surpassing above-mentioned accelerating period, for this reason, temperature adjustment in lettering drives the output gap of temperature adjustment with the temperature adjustment pulse of heater, should be corresponding to the amount of movement of balladeur train.

Here, ask correction factor according to the pulse spacing of temperature adjustment pulse, carry out the correction (pulse spacing correction) of the balladeur train amount of movement of temperature adjustment in the lettering again.

Shown in the table 9 is the tables of data of carrying out the pulse spacing correction; This table is with relative datum ratio at interval, obtains correction factor, and base interval wherein is balladeur train required time (present embodiment is 1.2 seconds) when moving full width.

Temperature adjustment pulse output timing that following reference is shown in Figure 28 and pulse spacing shown in Figure 29 are revised flow chart, and corrected impulse action at interval is described.

At first, in S401 step, if during output temperature adjustment pulse, in S402 pacing amount and last time exported interval between the temperature adjustment pulse, again in the S403 step, according to the pulse spacing, obtain correction factor with reference to temperature adjustment pulse correction chart, and, revise temperature adjustment operational ton in the lettering according to resulting correction factor.

On the other hand, if when S401 step does not have temperature adjustment pulse output, the S404 step to from output last time, whether judged, if, then return S401 and go on foot not through 1.2 seconds through 1.2 seconds.Since in the action of common lettering the temperature adjustment pulse be by the longest be 1.2 seconds interval output, so turn back to the S401 step.But when waiting for the situation of lettering signal next time that receive,, then enter the S405 step if during through 1.2 seconds.Go on foot to whether being that the state of adding a cover (capping) is judged, if then what does not carry out just finishing at S405.Add a cover by known manner and undertaken, but to present embodiment, behind printing ending, as through 6 seconds, just implement to add a cover (the 28th figure), need the time owing to add a cover and do not add a cover all, therefore normally carry out when printing ending, this also is the reason place of causing productivity ratio to descend.

If not the state of adding a cover, at S406 step output temperature adjustment pulse H automatically, identical temperature by with mobile balladeur train time the, the temperature of the head of holding the record.Because adding a cover is to carry out after 6 seconds at printing ending,, and enter the S402 step so the maximum of temperature adjustment pulse is output as 5.

According to this embodiment, can realize and utilize and measure the temperature adjustment pulse spacing, revise the correction of balladeur train amount of movement equivalence.And, can make the temperature of record head keep constant with temperature adjustment pulse H, so when beginning lettering once more, can carry out the temperature adjustment of degree of precision from adding a cover to enforcement behind the printing ending always.

Hereinafter with reference to Figure 30 to 33 and table 10 to table 12 the 5th embodiment of the present invention is described.

This embodiment crosses the temperature rise protection by realize from heating up preventing that record head from becoming temperature rising state.

Among the 2nd embodiment that has illustrated in front, be what to utilize by lettering ratio correction temperature adjustment power, so be easy to prevent the temperature rise of crossing when high lettering ratio.For example, as shown in table 5, under the lettering rate is situation more than 50%, by correction factor being taken as zero and do not carry out temperature adjustment.

But, when the lettering ratio surpasses 50% situation and continues for a long time, because the intensification certainly of record head itself also can become temperature rising state.And, when environment temperature is high, if not according to table 1 to shown in the table 4 like that, carried out temperature adjustment for preventing temperature rise, then also can be owing to record head itself produced the state of temperature rise from intensification.

The 10th table addition data table

The low-response energy rate	0％	12．5％	25％	40％	60％	80％
Addition value
	0	1	20	100	240	500
Maximum	-	180	2500	3400	11300	13000

The 11st table subtraction data table

The protection value	0-	150-	1300-	5300-	11000
The subtraction value	1	20	100	240	500

Table 12 critical value tables of data

Environment temperature	More than 35 ℃	-30℃	-25℃	20℃	-15℃	15℃
Critical value
	100	100	400	2600	8000	16000

In the present embodiment,, infer the temperature rise of record head itself according to the lettering ratio for this reason., when judging temperature rise, temperature rise and environment temperature prevent when presumptive because of switching the temperature rise of crossing that is caused from two direction letterings to folk prescription to lettering.

Table 10 and table 11, shown is the used control parameter of inferring the usefulness that heats up certainly of the 5th embodiment.Shown in the 12nd table is the tables of data of the control parameter of judging that temperature rise was used.

For infer record head from temperature rise, in lettering, calculate the protection value.

The protection value is the value that will be added to by the determined addition value (table 10) that should superpose of low-response lettering ratio in per 1 row lettering.But, when the protection value surpasses maximum corresponding to low-response lettering ratio, just do not carried out addition.

As shown in figure 30, Shi Ji record head has and the corresponding thermal equilibrium temperature of lettering ratio.In contrast, protection value also is provided with and the corresponding upper limit of lettering ratio.Shown in the 30th figure be in accordance with regulations lettering ratio lettering the time, the temperature rise of record head and protection value at that time.

When low-response lettering ratio, during than last time lettering ratio step-down, then when per 1 row lettering, use by protection to be worth determined stack reduction calculated value (table 11), do subtraction.

But, when reduction calculated value less than zero the time, then do not carry out subtraction.This is because as shown in figure 31, and the heat dissipation capacity of record head is not by the lettering ratio but by (the protection value decision of intensification temperature.Shown in the 31st figure is that in accordance with regulations lettering ratio carries out lettering, and when the lettering ratio is descended, the intensification of record head and the state of cooling.

And the reduction calculated value of table 11 was reduced to 0% o'clock corresponding to the lettering ratio.And when being reduced to lettering ratio beyond zero, then carry out additional calculation by the lettering ratio.So it is corresponding with the 31st figure.

Then, when the protection value of calculating surpasses critical value (table 12), then carried out the temperature rise protection.Protection is to switch to folk prescription by the lettering with two directions to realize to lettering.

If become folk prescription, compare its lettering ratio with the both direction lettering and descended 1/2, so can prevent temperature rise to lettering.

When calculating the protection value, with the lettering ratio of low-response, this is because low-response lettering ratio and long-term intensification, i.e. accumulation of heat is corresponding, and high response lettering ratio and part, instantaneous temperature rise are corresponding.

Illustrate that below with reference to Figure 32 and Figure 33 present embodiment protected the action of temperature rise.

At first, when power supply drops into, latency counter, temperature rise correction timer is reset (S501 step) in lettering time counter, the machine, and temperature rise correction timer (S502 step) in the starter motor is at S503 step read waiting time, if the stand-by period is more than 30 seconds the time, in program step S504, the lettering time counter is resetted, its reason is seen below and is stated.S505 after this is to the S515 step, and is identical to the S312 step with the S302 of Figure 24, is to carry out temperature rise correction in the machine, the preceding temperature adjustment of lettering, so omitted explanation.

In the S516 step,, judge whether to be necessary to protect, if necessary according to the protection value; then in the step, forbid two direction letterings, in S518 goes on foot at S517; if the amount of movement of balladeur train is 1/2 of an overall with, then in the step, set to the pattern of carrying out at folk prescription by temperature adjustment at S519.

This S518, S519 similarly carry out according to other example of utilizing the balladeur train amount of movement to revise outside the example of being carried out among the 1st to the 4th embodiment.

Then, go on foot to temperature adjustment at S520 and to switch on, and carry out in the lettering carrying out delegation's lettering in the S521 step after the temperature adjustment, then start latency counter (S523 step), when lettering terminates, return S503 and go on foot with heater.

To the 3rd embodiment shown in 24 figure, when lettering at the end, usually (S320, S321 step) resets printing counter, but present embodiment is more than 30 seconds the time in the stand-by period, and (S523, S503, S504 step) just resets, this be because, consider that when the stand-by period be in 30 seconds the time, also continue lettering again, and the temperature adjustment power of temperature adjustment in the lettering can set low this.

Hereinafter with reference to Figure 33, above-mentioned S516 step, S517 are gone on foot and describe in detail.

At first, judge whether the stand-by period is (the S601 step) more than 120 seconds, if more than 120 seconds; then, the protection value is reset to " 0 ", when the lettering that do not carry out more than 120 seconds in S602 step; the temperature of considering record head has been reduced near environment temperature, for this reason de-preservation.

Secondly, get ready at 15 seconds lettering of S603 step counting, go on foot at S604, calculate over 20 seconds, promptly the lettering of being obtained by S603 is got several average lettering data of 8 low-responses ready, then in the S605 step, according to low-response lettering data, with reference to the tables of data that adds (the 10th table), and obtain addition calculated value and maximum.If the protection value does not surpass maximum, then on the protection value, add addition calculated value.(S606, S607 step)

In S608 step,, then should consider heat radiation if when the low-response lettering energy rate of obtaining in the S604 step during last time lettering of the low-response lettering duty ratio of being obtained also will hang down.That is, go on foot according to the protection value,, in the step, from the protection value, this reduction calculated value is deducted at S610 with reference to subtracting the reduction calculated value of calculating tables of data (table 11) and obtaining at S609.During less than " 0 ", just be used as " 0 " (S611, S612 go on foot) as the protection value this moment.

Then,, obtain critical value (S613 step), do not surpass critical value, then carry out set (S614 step, S615 step) by two direction letterings as the protection value with reference to the critical data table according to environment temperature, and when during to the lettering state, removing this state for folk prescription described later.

On the other hand, when the protection value surpasses critical value, then set in folk prescription to lettering (S617, S618 step).Thus, when making the lettering energy rate become twocouese 1/2 of the lettering energy rate, so can prevent temperature rise.When environment temperature surpasses 30 ℃, such by 1.2 seconds stand-by period of input before lettering, latency counter is carried out set (S617, S618 step).So, 1/3 when making the lettering energy rate become two direction letterings is so even the environment temperature height also can make the temperature of record head promptly be lowered.

As above-mentioned illustrated, the 5th embodiment of the present invention is according to the lettering ratio, infer record head itself from temperature rise, and the detection record head cross temperature rise.And, when being judged as temperature rise, with lettering by two directions switch to folk prescription to, and print speed is reduced, the energy input amount of the record head of unit interval is reduced, thereby can prevent temperature rise.

Can also consider pairing heat balance point temperature according to the lettering ratio, and then consider to be accompanied by the heat dissipation capacity that the lettering ratio reduces, and infer out record head from temperature rise, so can carry out the high-precision temperature rise protection of crossing.

By temperature rise protection excessively, and made under the situation of temperature rising state releasing, and, writing speed was improved by returning two direction letterings once more.

Be to use from two direction letterings to folk prescription to the switching of lettering to carry out the temperature rise protection in this example, but also can with the method that reduces the record head energy input amount in the unit interval.For example, before the next line lettering, or with set fixed stand-by period, perhaps will spray with the method for the pulse width shortening of heater also passable.

Among above-mentioned the 1st to the 5th embodiment, also wish promptly regularly that counting and timing, energising data regularly etc. are preserved, and continue regularly action again during power connection lettering.Because if power supply disconnects above-mentioned data are disappeared, then the temperature of the record head before power connection is just unclear, thereby also just can not carry out suitable temperature control.

Hereinafter with reference to figure, specify the 6th embodiment of the present invention.

Shown in Figure 34 is is applicable to the oblique view of pattern of the ink jet recording of temperature-controlled process of the present invention.

The ink jet device of present embodiment is being recorded along paper or plastic tab etc. on the balladeur train that material P moves, and is mounted with and record head and ink tank is made whole 3 cartridge, and record head carries out record in scanning, be the device of tandem type.

In Figure 34, the 1st, ink tank, the 2nd, record head

Above-mentioned record head 2 is the ink injection record heads that utilize thermal spray ink, and is equipped with the electrothermal transformationer that produces heat energy.And above-mentioned ink injection record head 2 is to utilize the added heat energy of above-mentioned electrothermal transformationer and the film boiling that produces, makes air bubble growth, and ink is gushed out from ejiction opening write down.

Ink tank 1 and record head 2 made integration in advance and constitute the record head cartridge of dismountable cartridge (can change) as a whole.

Above-mentioned record head cartridge is loaded on the balladeur train 3, and this balladeur train 3 is by moving like that and led by guide rail 4 along being recorded material P, and moves back and forth by the direction of arrow indication.

The above-mentioned platen roller 5 that is recorded material P and formation recording surface is close to, and by driving the platen roller, the direction that makes record material P press arrow 5 transmits.

The 6th, the flexible cable of aggregate signal line, this holding wire are for the signal pulse electric current of circulation ink ejection usefulness, regulate usefulness such as record head temperature current.

The 7th, tellite is equipped with the electric loop of controlling tape deck on this plate.

As shown in the figure, on this plate 7, temperature sensor 8 is housed, the power transistor 18a that transistor stabilized power supply is used, A/D converter 16, microprocessor unit (MPU) 17 etc.

Above-mentioned power transistor 18a is an element that constitutes the printed circuit board (PCB) electric loop, and it is used to control the current signal of record head 2 inks ejection.

Said temperature sensor 8 is that what to be made of thermistor is to measure the temperature sensor that temperature is used, and it is contacted by dressing up with above-mentioned power transistor.Above-mentioned A/D converter 16 is transformed to data signal to the analog signal of temperature sensor 8.Above-mentioned microprocessor unit (MPU) 17, each one in the control tape deck makes temperature control be undertaken by processing sequence.

Figure 35 is the local thin portion oblique view of above-mentioned record head 2.In the figure, form liquid road 20 that leads to each ejiction opening 25 and the shared liquid chamber 12 that is used for supplying with inks on the base plate 24 to each liquid road 20.Disposed the ejection heater 13 as ejection energy generating device in each liquid road 20, the ink of this heater in each liquid road paid ejection heat energy.

When writing down, at first, the ink of ink tank by unillustrated ink tubes, is filled in shared liquid chamber 12 and each liquid road 20.The flexible cable that comes by tellite adds electric signal (portrait signal etc.) on the auto levelizer then, and each ejection is switched on heater 13.Each ejection is generated heat with heater, at the instantaneous generation bubble of this part,, form the ink droplet that flies from being arranged in ejection each ejiction opening 25 ejection with heater 13 downstreams, these ink droplets are being paid at paper etc. be recorded on the material P, and finished record.

Shown in Figure 36 is, with above ink jet recording, be recorded on the material at 8, to fixed figure when carrying out recording occurring continuously, the measurement result of the temperature of the temperature of the base plate 24 of surveying record head 2 and power transistor 18a simultaneously.

As shown in the figure, the rising of the temperature of the temperature of power transistor 18a and record head 2 raises simultaneously.Then, read the temperature that conduct drives the power transistor 18a of electronic component, the temperature of surveying record head 2 with temperature sensor 8.

Figure 37 is the control system block diagram that is suitable for implementing the temperature-controlled process of implementing by the 6th embodiment of the present invention.

As mentioned above, there is dependency relation between the temperature of the temperature of record head 2 and power transistor 18a, but because record head 2 is different with the thermal capacity of power transistor 18a, so on temperature rising curve, different places is arranged.For this reason,, perhaps select power transistor for the thermal capacity that makes power transistor 18a becomes identically with the thermal capacity of record head 2, perhaps on the power transistor again in conjunction with on heat sink.Perhaps the temperature of power transistor 18a is revised and carried out calculation process like that with MPU, temperature according to power transistor 18a, the temperature of unified decision record head 2, when its during situation, non-record below the fixed temperature, ejection is added short pulse with heater 13 by the degree that makes the ink foaming but do not spray, heat record head 2, in the time of on it becomes institute's fixed temperature, stop when non-record, to spray and apply short pulse with heater, and the temperature of regulating record head 2, it is not too raise.

The present invention the 7th embodiment that is to use shown in Figure 38 carries out the local oblique view of temperature controlled record head 2.

Near the liquid road 20 of the record head 2 of this figure, except that the ejection on each liquid road 20 with the heater 13, also be provided with into the temperature adjustment of heating record head with heater 10.

Shown in Figure 39 is the profile of the part of the printed circuit board (PCB) 7 in the present embodiment.In figure, on tellite 7, drive with the power transistor 18a except that being provided with, also be provided with to driving the power transistor 18b of above-mentioned temperature adjustment with the used voltage-stabilized power supply of heater 10, these

power transistors

18a, 18b are respectively by disposing in contact with temperature sensor 8.

Figure 40 is a preferable control system block diagram of implementing temperature-controlled process of the present invention.

In the figure, to drive ejection be that half thermal capacity of record head 2 is selected power transistor with the power transistor 18a that heats and temperature adjustment with the power transistor 18b thermal capacity separately of heater according to making, perhaps, by combining of power transistor and heat sink, rise by rise the double temperature of ground setting

power transistor

18a, 18b of the temperature than record head 2.

Measure the temperature of

power transistor

18a, 18b then with temperature sensor 8, through A/D converter 16 and after being transformed to data signal, add up with MPU17 again, these aggregate-values and correction factor are multiplied each other, according to 2

power transistor

18a, 18b temperature separately, the unified temperature of determining record head 2, thus constitute native system.

In addition, will be also passable with following formation, that is, environment temperature is set in addition detects the temperature sensor of usefulness and above-mentioned

last temperature sensor

8,8 combinations of 2

power transistor

18a, 18b by dress, measure temperature to revise.

After 2 measured temperature of

power transistor

18a, 18b become institute's fixed temperature when following, and temperature adjustment is connected with heater 10, apply short pulse by the degree that makes the ink foaming but do not spray, heat record head 2.

On the other hand, the temperature of measuring when two power transistors become fixed temperature when above, by action that temperature adjustment is disconnected with heater 10 and the carrying out that stops at least one action in the action that ejection heater 13 when the non-record applies short pulse, the temperature of record head 2 is adjusted to excessive high.

(A) of the 41st figure and (B) be respectively the fragmentary cross-sectional view that the present invention the 8th embodiment carries out temperature controlled tellite 7.

In this figure (A), on a temperature sensor 8, contact with heater-driven power transistor 18b with heater-driven power transistor 18a and temperature adjustment with ejection respectively.

And in this figure (B), on heat sink 28, set ejection with power transistor 18a and temperature adjustment power transistor 18b by contact condition, and on aforesaid heat sink 28, dispose temperature sensor 8 by the mode of thermal.

The temperature-controlled process of present embodiment can be with implementing with the control system of the roughly the same formation of the block diagram of above-mentioned the 40th figure.

Under the situation of the A of the 41st figure, should be chosen to the thermal capacity of the total of 2

power transistor

18a, 18b identical with the thermal capacity of record head 2, perhaps, utilize the analog signal of temperature sensor 8, after carrying out digital conversion with the A/D converter, in MPU17, revise calculation process, according to the temperature of measuring with temperature sensor 8, to the temperature of record head 2, set by unified regulation.When fixed temperature is following when becoming, with at least one heater in temperature regulating heater 10 and the ejection usefulness heater 13, record head is heated, and on the fixed temperature time, then should make temperature regulating heater 10 and ejection stop to heat with at least one heater in the heater 13 when becoming.Utilize the temperature of this method control record head 2.

Under the situation of the 41st figure (B), the total thermal capacity of selected two

power transistor

18a, 18b and heat sink 28, make its thermal capacity identical with record head 2, perhaps, after the simulation signal of temperature sensor 8 carried out digital conversion with the A/D16 converter, revise calculation by MPU17 and handle, the temperature of the unified decision of the temperature record head of having measured according to temperature sensor 82.Identical with above-mentioned situation then, when when institute's fixed temperature is following, at least with one in the heater 13 record head 2 is heated with heater 10 and ejection with temperature adjustment, otherwise, when when institute's fixed temperature is above, at least make temperature adjustment stop to adopt such method that the temperature of record head 2 is controlled with one in the heater 13 to the record head heating with heater 10 and ejection.

Figure 42 is the fragmentary cross-sectional view that is used to carry out temperature controlled printed chassis 7 among the present invention the 9th embodiment.

Figure 43 is that present embodiment carries out temperature controlled control system block diagram.

Among Figure 42, near the brilliant pipe of the power that drives the heater that sprays usefulness 18a, configuration temperature sensor 8.At this moment, in order to make temperature sensor 8, efficient perceives well from driving and spues with the power transistor 18a of heater next radiant heat and advection heat, and because heat easily accumulates in top, promptly to drive ejection than pyrotoxin higher slightly with the position of the power transistor 18a of heater so temperature sensor 8 is preferably disposed on.

Among Figure 43, the control system of present embodiment is to set like this, promptly measure from ejection radiant heat and the reverberation next with the power transistor 18a of heater 13 with temperature sensor 8, by A/D converter 16, to be transformed into data signal from the analog signal of this temperature sensor, then, with the MPU17 processing that performs calculations, then can infer the temperature that record head 2.

Use such control system, can with the temperature stabilization of record head 2 be controlled at institute's fixed temperature.

The the 6th to the 9th embodiment according to above explanation, there is no need to carry out closed loop thermal control with the temperature sensor that is assemblied in the record head 2, and with the temperature sensor 8 that is contained on the tape deck body, mensuration is put into heat energy the temperature of the heat generation power transistor (driving element) on the record head 2, measure the temperature of record head 2 indirectly, and the temperature of record head 2 can be controlled at temperature desired.

In a word, no longer make expensive record head temperature sensor, meanwhile eliminated the discreteness of the temperature measuring value of record head, thereby can reduce cost significantly and increase substantially yield rate.

Also have, in the various embodiments described above, though for example understand the situation of using removable card box type record head, but temperature-controlled process according to the present invention is not limited to these, using under the record head situation that almost there is no need more to remodel, implement similarly, and can reach same effect.

And, in the above-described embodiments, as the driving element of dropping into energy for record head 2, use be power transistor, still, this driving element is not limited to power transistor.

In addition, in above embodiment, enumerated the embodiment of the ink jet recording of suitable sweep type, temperature-controlled process of the present invention is described, the used record head (record head cartridge) of this device is the sweep type ink injection record head that is loaded on the balladeur train 3, but the present invention also is suitable for the wide line ink jet recording of the wide line ink injection record head that is used to cover the web direction record field that is recorded material etc., and also can be suitable for, and can both reach same action effect for the ink jet recording of other recording modes.

The number of application of the present invention and record head is irrelevant.

The present invention particularly in ink injection record mode, also has the excellent results of being brought by bubble injection mode record head, tape deck.

About representational structure and principle, for example can be disclosed with reference to No. 4723129 specification of United States Patent (USP), No. 4740796 specification.This mode all is suitable for so-called key request type (オ Application テマ Application De type), continuous type, but, special occasion in key request type, on the electrothermal transformationer of the corresponding configuration of thin slice that keeps liquid (ink) and liquid road, according to recorded information, at least provide one to make its driving signal that produces the rising of temperature rapidly that surpasses the center boiling, utilize this to drive signal, make electrothermal transformationer produce heat energy; And make the heat effect face of record head become film boiling, consequently to form the bubble aspect in the liquid (ink) one to one be effective with driving signal.By growth, the contraction of this bubble, make liquid (ink) ejection by ejection with opening, and form one at least.If in the time of should driving signal and become pulse form, owing to the growth contraction that can suitably carry out bubble at once, so can finish the ejection of the good especially liquid of response (ink), this is desirable.As the driving signal of this pulse shape, by No. 4463359 specification of United States Patent (USP) and No. 4345262 specification disclosed signal suit.If adopt the condition of the relevant above-mentioned heat effect surface temperature climbing that United States Patent (USP) No. 4313124 specification disclose, then can carry out better record.

As recording head structure, the present invention is except the combining structure (linearity liquid road or liquid road, right angle) that comprises the ejiction opening that disclosed by above-mentioned each specification, liquid road, electrothermal transducer, comprise that also this specification discloses the structure that heat action part is configured in crooked field with the structure of No. 4558333 specification of United States Patent (USP) and No. 4459600 specification of United States Patent (USP).In addition, system says for a plurality of electrothermal transformationers, opens the structure of clear 59 years No. 123670 communique and clear 59 years No. 138461 communiques of Te Kai according to the spy, and is still effective to the present invention.No. 123670 communique discloses the structure of common slit as the ejection portion of electrothermal transformationer; No. 138461 communique discloses the structure of the perforate correspondence of the pressure wave that will absorb heat energy in ejection portion.

Tape deck to the record head of the full capable type printer of the width respective length of the record carrier that has and can write down, can be with the disclosed combining structure that satisfies a plurality of record heads of this length of book as described above, also can be with the structure that becomes a whole record head.And the present invention can further bring into play above-mentioned effect.

Additional disclosure is the assembling of relative assembly body once, to with the sheet type record head that freely changes (チ Star プイプ record ヘ Star ト) of being electrically connected of device body, the ink that can feedway comes or use under the situation of the cartridge type record head of whole setting on the record head body, the present invention is effective.

Be provided with the recovery mechanism of record head and the auxiliary body of preparation as formation of the present invention, the additional of these mechanisms can make effect of the present invention more stable, is the desired mechanism that adds therefore.

For example concrete, as to the capping mechanism of record head, wiper mechanism, pressurization or attract mechanism, electrothermal transformationer or giving of electrothermal transformationer and other heating element heater other heating element heater combination and except that electrothermal transformationer is equipped with heating arrangements, the ejection pattern fully of giving of other ejection of being carried out except that record all is effective to stably writing down.

Logging mode as tape deck, the logging mode that main flow looks such as black are not only arranged, can also make overall structure to record head or a plurality of record heads are combined, to the tertiary colour that has different colours or by a kind of device in the full color that mixes, also extremely effective to the present invention.

In the embodiment of the invention of above explanation, ink is used as liquid explanation, but it also can be the solidified ink when room temperature and the following temperature of room temperature, and it is softening or become liquid in room temperature, perhaps in the temperature range that the general temperature of being carried out in ink sprays is adjusted, promptly be softened in 30 °-70 ℃ the temperature range or become liquid ink.That is to say, when being preferably in tracer signal and paying, ink has become liquid, to prevent the heat that produces temperature rise as the heat during from solid-state liquefy uses ink, be the ink that has been cured perhaps for preventing that evaporation of ink from using at laying state, in a word, the such ink of the suitable use of the present invention, promptly by the heat energy relative with tracer signal pay in, make ink liquefaction becoming ink liquid, and when ejection and arrival record carrier, begun to solidify this ink that makes its initial liquefaction character with heat energy that has.The ink of this situation as the spy open clear 54-56847 communique or spy open clear 60-71260 communique disclosed, be maintained in the recess or through hole of porous matter thin slice as aqueous or solid shape thing, also can be by the form that is provided with towards electrothermal transformationer.Above-mentioned in the present invention to the effective thing of ink, also be suitable for carrying out above-mentioned film boiling mode.

Form as ink jet recording of the present invention, except that the image output end that can be used as processor such as computer uses, also can be used in the copy device with combination such as reader, can also adopt have receiver/transmitter can the form of picture unit.

Claims

1. an ink jet recording comprises: the record head that spray mountain ink droplet writes down; Heat the heating arrangements of above-mentioned record head; Link to each other, control the control of energy mechanism that provides to it with described heating arrangements; The temperature survey mechanism of measures ambient temperature; And time movement; It is characterized in that: described time movement is according to the variations in temperature timing of the record head relevant with the record operation, described controlling organization links to each other with time movement with described temperature survey mechanism, and environment temperature and the above-mentioned time movement measured time measured according to the said temperature measuring mechanism, the energy that control is supplied with to above-mentioned heating arrangements.

2. ink jet recording as claimed in claim 1 is characterized in that, the writing time of above-mentioned time movement instrumentation record, above-mentioned controlling organization is when operation of recording, to above-mentioned heating arrangements energize.

3. ink jet recording as claimed in claim 2 is characterized in that, before every line item, above-mentioned controlling organization is to the heating arrangements energize.

4. ink jet recording as claimed in claim 3 is characterized in that, above-mentioned controlling organization and then according to control the energy of supplying with above-mentioned heating arrangements to the interval of above-mentioned heating arrangements energize.

5. ink jet recording as claimed in claim 3 is characterized in that, above-mentioned control device and then according to the tracer signal content after the next line is again controlled the energy in the above-mentioned supply heating arrangements.

6. ink jet recording as claimed in claim 2 is characterized in that, the writing time that above-mentioned time movement comes the instrumentation record head by the counting to record line number or shorthand number.

7. ink jet recording as claimed in claim 1 is characterized in that, the non-writing time of above-mentioned time movement instrumentation record head, above-mentioned heating arrangements supplied with energy by above-mentioned controlling organization before operation of recording begins.

8. ink jet recording as claimed in claim 1, it is characterized in that, the writing time and the non-writing time of above-mentioned time movement instrumentation record head, above-mentioned controlling organization is according to above-mentioned environment temperature and above-mentioned writing time, in operation of recording, the energy of above-mentioned heating arrangements is supplied with in control, and according to above-mentioned environment temperature and above-mentioned non-writing time before operation of recording begins, the energy of above-mentioned heating arrangements is supplied with in control.

9. ink jet recording as claimed in claim 8, it is characterized in that, in during being included in also that above-mentioned record head is scheduled to, measure the lettering ratio instrumentation mechanism of lettering ratio, above-mentioned controlling organization is according to the measured lettering ratio of above-mentioned lettering ratio measure mechanism, and the energy of above-mentioned heating arrangements is supplied with in control.

10. ink jet recording as claimed in claim 9, it is characterized in that, the predicted temperature of the above-mentioned record head of above-mentioned controlling organization according to above-mentioned environment temperature, above-mentioned non-writing time and when last time lettering finished, the energy of above-mentioned heating arrangements is supplied with in control.

11. ink jet recording as claimed in claim 9 is characterized in that, above-mentioned lettering ratio instrumentation mechanism is by to telling the calculating of umber of pulse of China ink, instrumentation lettering ratio in the unit interval.

12. ink jet recording as claimed in claim 9, it is characterized in that, above-mentioned lettering ratio instrumentation mechanism is between the first phase and than instrumentation lettering ratio in the second phase also long between the first phase, above-mentioned controlling organization is according between the above-mentioned first phase and the lettering ratio of the second phase, and the energy of above-mentioned heating arrangements is supplied with in control.

13. ink jet recording as claimed in claim 8, it is characterized in that, also have instrumentation to said apparatus instrumentation mechanism conduction time of conduction time, above-mentioned controlling organization is according to instrumentation mechanism conduction time measured conduction time, and the energy of above-mentioned heating arrangements is supplied with in control.

14. ink jet recording as claimed in claim 13, it is characterized in that, above-mentioned controlling organization is according to above-mentioned conduction time above-mentioned environment temperature being revised, and according to environment temperature and the above-mentioned writing time revised, the energy of above-mentioned heating arrangements is supplied with in control in operation of recording, according to the environment temperature and the above-mentioned non-writing time of above-mentioned correction, before operation of recording began, the energy of above-mentioned heating arrangements was supplied with in control.

15. ink jet recording as claimed in claim 13, it is characterized in that, above-mentioned conduction time, instrumentation mechanism instrumentation was to first conduction time of the energising of the power supply unit in the said apparatus with to second conduction time of other each parts energising in the said apparatus, above-mentioned controlling organization is according to first and second conduction time, and the energy of above-mentioned heating arrangements is supplied with in control.

16. ink jet recording as claimed in claim 8 is characterized in that, above-mentioned record head has several ink jet exits, utilizes heat energy to make ejiction opening ejection ink.

17. ink jet recording as claimed in claim 8, it is characterized in that, above-mentioned record head has the heat energy generating mechanism, this mechanism is arranged on and sprays on corresponding each ejiction opening of several ejiction openings of ink, utilize heat to make ink produce state variation, because the drop that the variation of this state makes ink circle in the air from above-mentioned ejiction opening ejection and formation.

18. ink jet recording as claimed in claim 8 is characterized in that, above-mentioned record head be make can with said apparatus loading and unloading detachable cartridge type freely.

19. ink jet recording as claimed in claim 8 is characterized in that, above-mentioned record head has a plurality of ejiction openings in whole record amplitudes of non-recording materials, for completely going type.

20. ink jet recording as claimed in claim 8 is characterized in that, above-mentioned tape deck is applicable to the facsimile machine of record by the tracer signal of communication line reception.

21. ink jet recording as claimed in claim 8 is characterized in that, above-mentioned controlling organization is the pulse width by the driving pulse of supplying with above-mentioned heating arrangements, controls energize.

22. ink jet recording as claimed in claim 1 is characterized in that, this device also has following structure:

The lettering ratio instrumentation mechanism of the lettering ratio of the above-mentioned record head of instrumentation in institute's scheduled period;

According to the lettering ratio of above-mentioned lettering ratio instrumentation mechanism instrumentation, predict that above-mentioned record head self causes the temperature prediction mechanism that temperature raises because of record;

According to the temperature rise that temperature prediction mechanism is predicted, the temperature rise protection mechanism of the energy that the above-mentioned record head of restriction supply is used to write down.

23. ink jet recording as claimed in claim 22 is characterized in that, above-mentioned temperature rise protection mechanism is by becoming folk prescription to record to record by both party, and restriction is used to write down the energy of being supplied with.

24. record head with ejection ink droplets, and comprise the temperature-controlled process of ink jet recording of the time movement of writing time of temperature survey mechanism, the above-mentioned record head of instrumentation of the heating arrangements that heats this record head, measures ambient temperature and non-writing time, it is characterized in that: the temperature-controlled process of this device has following steps:

The first step: before operation of recording begins,, energy is supplied with above-mentioned heating arrangements, control the temperature of above-mentioned record head according to the environment temperature of measuring by the said temperature measuring mechanism with by non-writing time of above-mentioned time movement instrumentation:

25. the temperature-controlled process of ink jet recording as claimed in claim 24 is characterized in that, in the above-mentioned first step, and when above-mentioned non-writing time is longer, the energy of the above-mentioned heating arrangements of increasing supply.

26. the temperature-controlled process of ink jet recording as claimed in claim 24 is characterized in that, in above-mentioned second step, when above-mentioned writing time is longer, reduces and supplies with the preceding energy of above-mentioned heating arrangements.

27. the temperature-controlled process of ink jet recording as claimed in claim 24, it is characterized in that, in above-mentioned first and/or second step,, energy supplied with above-mentioned heating arrangements and control the temperature of above-mentioned record head also according to the lettering ratio of above-mentioned record head in institute's scheduled time.

28. the temperature-controlled process of ink jet recording as claimed in claim 27 is characterized in that, in above-mentioned first and/or second step, when above-mentioned lettering ratio is higher, reduces the energy of supplying with above-mentioned heating arrangements.

29. the temperature-controlled process of ink jet recording as claimed in claim 24 is characterized in that, in the above-mentioned first step, also according to conduction time of said apparatus, energy is supplied with above-mentioned heating arrangements and control the temperature of above-mentioned record head.