Color image forming apparatus

Details Color image forming apparatus Color image forming apparatus

2011-05-10

2011-05-10

Gray, David M (Department: 2852)

Electrophotography

Image formation

Transfer

C347S116000

Reexamination Certificate

active

07941083

ABSTRACT:
An image forming method includes forming toner images on first and second image bearing members; transferring a first toner image on the first image bearing member and a second toner image on the second image bearing member, in mutually superposed manner, onto a recording material; heating the first and second toner image thereby fixing the same to the recording material; detecting alignment marks on the first and second image bearing members in the course of a continuous job for continuously forming images; controlling relative positions of the first toner image and the second toner image, based on a result of detection of the alignment marks; and increasing a frequency of execution of the relative position control in the continuous job, as the recording material to be subjected to image formation in the continuous job has a smaller width in a direction perpendicular to a transport direction of the recording material.

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JP 2633877 computer-generated partial translation.
JP 3450402 computer-generated partial translation.
Notice of Reason for Rejection dated Dec. 28, 2010, in counterpart Japanese Application No. 2005-165453.

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