Image forming apparatus with variable efficiency cleaning mechan

Details Image forming apparatus with variable efficiency cleaning mechan Image forming apparatus with variable efficiency cleaning mechan

1998-03-09

2000-02-22

Pendegrass, Joan

Electrophotography

Control of electrophotography process

Control of cleaning

399299, G03G 2100

Patent

active

060290250

ABSTRACT:
An image forming apparatus, such as a printer or photocopier, has a cleaning device for cleaning an image carrier. The efficiency with which the cleaning device cleans the image carrier is varied in dependence upon the image forming conditions, to thereby reduce wear on both the cleaning device and the image carrier. In one embodiment, cleaning efficiency is varied by changing the contact pressure between a cleaning blade and the image carrier. In a color apparatus with multiple image-forming units, the image forming conditions relate to whether the image to be formed is monochrome, composite color or simul-color.

REFERENCES:
patent: 5657114 (1997-08-01), Kitajima et al.
patent: 5765082 (1998-06-01), Numazu et al.

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