Image forming apparatus

Electrophotography – Document handling – Copy

Reexamination Certificate

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C399S394000, C400S579000

Reexamination Certificate

active

06873820

ABSTRACT:
In an image forming apparatus and an image forming method, a paper position aberration detecting sensor including a light emitting element and a light receiving element is disposed in the paper conveying path of the image forming apparatus. The amount of paper position aberration in paper conveyance is detected by a counter, and on the basis of the result of the detection, a CPU controls the writing start position of a printed image.

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patent: 5794176 (1998-08-01), Milillo
patent: 5848344 (1998-12-01), Milillo et al.
patent: 5887996 (1999-03-01), Castelli et al.
patent: 6305856 (2001-10-01), Miyazaki
patent: 6356735 (2002-03-01), Hozumi

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