Image forming apparatus

Details Image forming apparatus Image forming apparatus

2005-09-20

2005-09-20

Grimley, Arthur T. (Department: 2852)

Electrophotography

Control of electrophotography process

Responsive to copy media characteristic

C399S050000, C399S115000, C399S168000

Reexamination Certificate

active

06947680

ABSTRACT:
In a case where a rotating speed of an intermediate transfer member is reduced during the process of image formation, carriers may adhere to a photosensitive member before the rotating speed of the intermediate transfer member stabilizes. To cope therewith, in changing an image formation speed in accordance with a conveying speed of a recording material on completion of primary transfer, a developing rotary is rotated so as to keep any developing device off a developing position. Consequently, a situation in which the carriers adhere to an image bearing member can be avoided. At the same time, stopping a charging operation of a charger enables a longer service life of the image bearing member.

REFERENCES:
patent: 5835821 (1998-11-01), Suzuki et al.
patent: 6064837 (2000-05-01), Hashimoto et al.
patent: 6160569 (2000-12-01), Fujimori et al.
patent: 0766146 (1997-02-01), None
patent: 60078465 (1985-05-01), None

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