Toner consumption and contamination in an image forming apparatus can be prevented with a device and method for presetting the paper size to be used in a manual paper feed mode and preventing printing in a region beyond the preset paper size. The device includes a paper width sensing unit that is adjusted...http://www.google.es/patents/US5657133?utm_source=gb-gplus-sharePatente US5657133 - Method and device for saving toner and preventing contamination in an image forming apparatus
Method and device for saving toner and preventing contamination in an image ...
