Image forming apparatus

Details Image forming apparatus Image forming apparatus

2009-04-02

2011-12-20

Porta, David (Department: 2884)

Electrophotography

Control of electrophotography process

Control of transfer

C399S121000, C399S302000, C399S313000

Reexamination Certificate

active

08081892

ABSTRACT:
Bias correction control of an intermediate transfer belt21on which an image of each color formed on a surface of a photoconductive body31is transferred, and a second transfer belt24in pressure contact with the intermediate transfer belt21to transfer a toner image onto a recording sheet by passing the recording sheet between the intermediate transfer belt21. Contents of the bias correction control (an amount of correction control and a cycle of correction control) can be changed in accordance with states of the belts i.e. whether the intermediate transfer belt21and the second transfer belt24are in a pressure contact state or a separate state.

REFERENCES:
patent: 5479241 (1995-12-01), Hou et al.
patent: 6067435 (2000-05-01), Soga et al.

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