Image forming apparatus and image forming method

Electrophotography – Image formation – Transfer

Reexamination Certificate

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C399S040000

Reexamination Certificate

active

07627277

ABSTRACT:
An image forming apparatus, including a compensation pattern forming device to form a predetermined compensation pattern to compensate image displacement in each key color, a plurality of detectors to detect two key colors in the predetermined compensation pattern, and a compensating device to compensate the image displacement of the two key colors detected by the detectors.

REFERENCES:
patent: 2004/0160506 (2004-08-01), Maeda
patent: 2004/0239747 (2004-12-01), Maeda
patent: 2005/0200689 (2005-09-01), Shinohara et al.
patent: 1 575 258 (2005-09-01), None
patent: 10-044502 (1998-02-01), None
patent: 2000-112205 (2000-04-01), None
patent: 2004-295083 (2004-10-01), None
U.S. Appl. No. 12/107,387, filed Apr. 22, 2008, Maeda.

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