Image forming apparatus including distance detection unit

Details Image forming apparatus including distance detection unit Image forming apparatus including distance detection unit

2011-01-04

2011-01-04

Brase, Sandra L (Department: 2884)

Electrophotography

Control of electrophotography process

Of plural processes

C399S301000, C347S116000

Reexamination Certificate

active

07865095

ABSTRACT:
An image forming apparatus including a patch detection sensor for detecting an intermediate transfer belt and image information of toner images transferred onto the intermediate transfer belt, a distance measurement sensor for detecting the distance between a light emitting portion of the patch detection sensor and the surface of the intermediate transfer belt facing the patch detection sensor, and a control unit for correcting the image information detected by the patch detection sensor based on the distance information detected by the distance measurement sensor and controlling image forming conditions so as to correct at least one of density and color misregistration of toner images based on the corrected image information.

REFERENCES:
patent: 5253018 (1993-10-01), Takeuchi et al.
patent: 6904245 (2005-06-01), Mochizuki et al.
patent: 6909858 (2005-06-01), Hama et al.
patent: 7133056 (2006-11-01), Tanaka et al.
patent: 11-237773 (1993-08-01), None

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