Image forming apparatus, method of controlling same,...

Details Image forming apparatus, method of controlling same,... Image forming apparatus, method of controlling same,...

2007-12-25

2007-12-25

Tran, Hoan (Department: 2852)

Electrophotography

Image formation

Transfer

C399S111000

Reexamination Certificate

active

11074927

ABSTRACT:
In an image forming apparatus, a pattern forming unit forms a pattern for ameliorating image positional displacement, and a detecting unit detects the pattern. An ameliorating unit ameliorates an image positional displacement based on the pattern detected. If for example, the pattern cannot be detected, then e.g., monochrome printing is enabled, and a notifying unit notifies that the amelioration is not possible.

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European Patent Office Search Report May 30, 2007, for corresponding European Patent Application No. 05251409.8-1522.

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