Belt drive control unit, belt drive control method, belt...

Details Belt drive control unit, belt drive control method, belt... Belt drive control unit, belt drive control method, belt...

2009-01-29

2011-12-20

Gray, David (Department: 2852)

Electrophotography

Image formation

Photoconductive member

Reexamination Certificate

active

08081904

ABSTRACT:
A belt drive control unit controls a rotation of belt supported by first and second rollers. Each of rotations of the first and second rollers are detected as first and second results. A rotation of the first roller is controlled in connection with thickness fluctuation in the belt using the first and second results. The belt drive control unit includes a sampling data acquisition unit, a correction value generator, a correction value storage, and a correction value reading controller. The sampling data acquisition unit obtains sampling data by sampling a difference value between the first and second results. The correction value generator generates correction value data for the belt based on the sampling data. The correction value storage stores the correction value data. The correction value reading controller reads the correction value data based on a rotation number of the belt to control a rotation of the first roller.

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