Image-information detecting device and image forming apparatus

Details Image-information detecting device and image forming apparatus Image-information detecting device and image forming apparatus

2007-08-21

2007-08-21

Ngo, Hoang (Department: 2852)

Electrophotography

Control of electrophotography process

Of plural processes

C399S066000, C399S313000

Reexamination Certificate

active

11192045

ABSTRACT:
A device for detecting image information includes an intermediate transfer member configured to hold a pattern image; a detecting unit configured to optically detect the pattern image; a secondary transfer unit configured to contact with and separate from the intermediate transfer member; and a control unit that controls the secondary transfer unit in such a manner that the secondary transfer unit does not contact the intermediate transfer member while the detecting unit is detecting the pattern image, and that controls the secondary transfer unit in such a manner that the secondary transfer unit contacts the intermediate transfer member after the detecting unit finishes detection of the pattern image.

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