EP0515164A3 - Charger having charging blade, image forming apparatus having same and process cartridge having same - Google Patents

Charger having charging blade, image forming apparatus having same and process cartridge having same Download PDF

Info

Publication number
EP0515164A3
EP0515164A3 EP19920304561 EP92304561A EP0515164A3 EP 0515164 A3 EP0515164 A3 EP 0515164A3 EP 19920304561 EP19920304561 EP 19920304561 EP 92304561 A EP92304561 A EP 92304561A EP 0515164 A3 EP0515164 A3 EP 0515164A3
Authority
EP
European Patent Office
Prior art keywords
same
charger
image forming
forming apparatus
process cartridge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19920304561
Other versions
EP0515164A2 (en
Inventor
Norihisa Hoshika
Takeo Shoji
Yasushi Shimizu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP14532391A external-priority patent/JPH04343373A/en
Priority claimed from JP20547491A external-priority patent/JPH0527551A/en
Application filed by Canon Inc filed Critical Canon Inc
Publication of EP0515164A2 publication Critical patent/EP0515164A2/en
Publication of EP0515164A3 publication Critical patent/EP0515164A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/02—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
    • G03G15/0208—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices by contact, friction or induction, e.g. liquid charging apparatus
    • G03G15/0216—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices by contact, friction or induction, e.g. liquid charging apparatus by bringing a charging member into contact with the member to be charged, e.g. roller, brush chargers
EP19920304561 1991-05-20 1992-05-20 Charger having charging blade, image forming apparatus having same and process cartridge having same Withdrawn EP0515164A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP145323/91 1991-05-20
JP14532391A JPH04343373A (en) 1991-05-20 1991-05-20 Contact type electrostatic charger
JP205474/91 1991-07-22
JP20547491A JPH0527551A (en) 1991-07-22 1991-07-22 Contact electrifying blade

Publications (2)

Publication Number Publication Date
EP0515164A2 EP0515164A2 (en) 1992-11-25
EP0515164A3 true EP0515164A3 (en) 1993-11-03

Family

ID=26476474

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920304561 Withdrawn EP0515164A3 (en) 1991-05-20 1992-05-20 Charger having charging blade, image forming apparatus having same and process cartridge having same

Country Status (1)

Country Link
EP (1) EP0515164A3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69435008T2 (en) * 1993-05-31 2008-04-30 Ricoh Co., Ltd. Roller, charger and image forming apparatus using the same
US5860046A (en) * 1996-07-09 1999-01-12 Minolta Co., Ltd. Charging method and charging device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2892973A (en) * 1955-01-26 1959-06-30 Gen Dynamics Corp Apparatus for imparting electrostatic charges in electrophotography
EP0312230A2 (en) * 1987-10-05 1989-04-19 Canon Kabushiki Kaisha An image forming apparatus
US5095335A (en) * 1989-09-19 1992-03-10 Canon Kabushiki Kaisha Copier with retractable charging unit to prevent damage to drum when removing process cartridge

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60147756A (en) * 1984-01-13 1985-08-03 Toshiba Corp Charging device
JPH0313973A (en) * 1989-06-13 1991-01-22 Nec Corp Electrophotographic printing device
JPH03100675A (en) * 1989-09-14 1991-04-25 Canon Inc Contact electrifier

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2892973A (en) * 1955-01-26 1959-06-30 Gen Dynamics Corp Apparatus for imparting electrostatic charges in electrophotography
EP0312230A2 (en) * 1987-10-05 1989-04-19 Canon Kabushiki Kaisha An image forming apparatus
US5095335A (en) * 1989-09-19 1992-03-10 Canon Kabushiki Kaisha Copier with retractable charging unit to prevent damage to drum when removing process cartridge

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 15, no. 131 (P-1186)29 March 1991 & JP-A-03 013 973 ( NEC CORP ) 22 January 1991 *
PATENT ABSTRACTS OF JAPAN vol. 15, no. 292 (P-1230)24 July 1991 & JP-A-03 100 675 ( CANON INC ) 25 April 1991 *
PATENT ABSTRACTS OF JAPAN vol. 9, no. 320 (P-413)(2043) 14 December 1985 & JP-A-60 147 756 ( TOSHIBA K.K. ) 3 August 1985 *

Also Published As

Publication number Publication date
EP0515164A2 (en) 1992-11-25

Similar Documents

Publication Publication Date Title
EP0615177A3 (en) Charging device, process cartridge and image forming apparatus.
GB2242793B (en) Battery charging apparatus
EP0498679A3 (en) Battery charging apparatus
HK1010583A1 (en) Charging member, charging device and process cartridge detachably mountable to image forming apparatus
EP0443461A3 (en) Process cartridge and image forming apparatus usable with same
GB2277486B (en) Process cartridge, image forming apparatus and image forming system
HK1011759A1 (en) Charging member, process cartridge and image forming apparatus
HK150496A (en) Process cartridge and image forming apparatus usable with this process cartridge
EP0338546A3 (en) Charger and image forming apparatus with same
EP0622696A3 (en) Process cartridge and image forming apparatus.
HK1011755A1 (en) Process cartridge and image forming apparatus usable therewith
EP0667667A3 (en) Battery charging apparatus.
EP0590940A3 (en) Process cartridge and image-forming apparatus.
EP0432690A3 (en) Charging apparatus
EP0417801A3 (en) Image forming apparatus having charging means
EP0590939A3 (en) Process cartridge and image-forming apparatus
EP0720069A3 (en) Charging member, process cartridge using the same and electrophotographic apparatus
EP0526236A3 (en) Charging device, process cartridge and image forming, apparatus using same
EP0431559A3 (en) Image forming apparatus having charging means
EP0689103A3 (en) Electrophotographic apparatus, process cartridge and image forming method
EP0526235A3 (en) Charging device, process cartridge and image forming apparatus
EP0504877A3 (en) Charging member, charging device, process unit and image forming apparatus having charging member
HK1008901A1 (en) Toner container, process cartridge, and image forming apparatus
EP0633511A3 (en) Charging apparatus and process cartridge.
EP0515164A3 (en) Charger having charging blade, image forming apparatus having same and process cartridge having same

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19940321

17Q First examination report despatched

Effective date: 19950420

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19960730