Image forming apparatus with image bearing member adjustment

Details Image forming apparatus with image bearing member adjustment Image forming apparatus with image bearing member adjustment

2008-11-05

2011-11-22

Chen, Sophia S (Department: 2852)

Electrophotography

Image formation

Transfer

C347S116000, C399S394000

Reexamination Certificate

active

08064810

ABSTRACT:
An image forming apparatus includes first and second image bearing members on which toner images are to be formed, a conveying member, and a conveying member position index detecting device for detecting a conveying member position index provided on the conveying member. The apparatus also includes an image bearing member position index detecting device for detecting image bearing member position indices provided on the second image bearing member, an adjusting device for adjusting a rotational speed of the second image bearing member, and a controller for controlling the adjusting device so as to adjust a position of an image bearing member position index correspondingly to the conveying member position index, on the basis of detection results of the conveying member position index detecting device and the image bearing member position index detecting device.

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European Search Report dated Feb. 25, 2009, in counterpart European Application No. 08168482.1-2209.
Communication pursuant to Article 94(3) EPC, dated Sep. 22, 2011, in European Application No. 08168482.1-2209.

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