Offset preventing color image forming apparatus

Details Offset preventing color image forming apparatus Offset preventing color image forming apparatus

2006-07-18

2006-07-18

Ngo, Hoang (Department: 2852)

Electrophotography

Image formation

Transfer

C399S167000, C399S302000, C399S395000, C399S396000

Reexamination Certificate

active

07079797

ABSTRACT:
An image forming apparatus forms a toner image on a moving member by transferring and superposing component color toner images formed on an image bearer. An image forming apparatus includes a driving device that rotates and transports a moving member, a moving value detecting device that detects one of a moving length and a moving speed of the moving member, and a deviation calculating device that calculates a deviation value of one of the moving length and the moving speed by subtracting the detected one of the moving length and the moving speed from a reference value. An adjustment value calculating device calculates an adjustment value in accordance with the calculated deviation value. A driving speed control device controls a driving speed of the driving device in accordance with the calculated adjustment value. A deviation removing device removes prescribed deviation in one of the moving length and the moving speed detected by the moving value detecting device based on the calculated deviation value and the calculated adjustment value. The deviation removing device removes deviation not giving influence to traveling of the moving member at least at the transfer station.

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