Image transfer section of color image forming apparatus

Details Image transfer section of color image forming apparatus Image transfer section of color image forming apparatus

2005-11-08

2005-11-08

Grainger, Quana (Department: 2852)

Electrophotography

Image formation

Transfer

C399S306000

Reexamination Certificate

active

06963715

ABSTRACT:
A color image forming apparatus comprises photoconductor drums on which toner images of each color are developed and formed; an endless intermediate transfer belt arranged in a contactable state with the photoconductor drums to run; first bias transfer rollers which perform first bias transfer in which the toner images of each color are transferred from the photoconductor drums onto the intermediate transfer belt; a second bias transfer roller which performs second transfer in which the toner images on the intermediate transfer belt are transferred onto paper; and a separation unit which, when a maximum print length of an image is below a length from a transfer point A to a transfer point B, separates the photoconductor drums and the intermediate transfer belt from each other after all first bias transfer of the toner images to be transferred on the last paper in a first print job has been completed, before second bias transfer onto the last paper is started and after second bias transfer onto paper immediately before the last paper has been completed.

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