Image forming apparatus and image forming method with...

Details Image forming apparatus and image forming method with... Image forming apparatus and image forming method with...

2006-11-21

2006-11-21

Chen, Sophia S. (Department: 2852)

Electrophotography

Image formation

Transfer

C399S159000, C399S299000, C399S302000

Reexamination Certificate

active

07139518

ABSTRACT:
In an image forming apparatus that transfers images formed on plural photosensitive drums onto a belt in a superimposing manner to produce a multi-color image, a positional deviation in a main scanning direction, which is generated while transferring the images formed, is detected. An eccentricity phase of each of the photosensitive drums is calculated based on the positional deviation detected, and a rotational phase of the photosensitive drums is controlled based on the eccentricity phase calculated.

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