Charging process for image forming apparatus

Details Charging process for image forming apparatus Charging process for image forming apparatus

1979-11-27

1981-12-22

Moses, Richard L.

Photocopying

Including fiber optics

355 14CH, 355 77, G03G 1500

Patent

active

043068014

ABSTRACT:
The present invention relates to an electrostatic charging process for uniformly charging an image holding member such as a photoconductive or insulating drum. In an image forming apparatus in which such image holding member is driven both at a first speed and at a second speed different from said first speed, there results a phenomenon of uneven charging due to the difference between the start-up characteristic of charging performance of the charging means and the actual speed at the speed change-over of the image holding member. This drawback is prevented by the present invention in which the speed change-over time of the image holding member is selected different from the charging start time of the charging means in such a manner that the charging is initiated after the speed change-over.

REFERENCES:
patent: 4044671 (1977-08-01), Holl et al.

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