Image reading apparatus and image forming apparatus

Details Image reading apparatus and image forming apparatus Image reading apparatus and image forming apparatus

2005-03-16

2009-12-08

Safaipour, Houshang (Department: 2625)

Facsimile and static presentation processing

Facsimile

Picture signal generator

C358S474000, C358S483000, C358S461000, C358S446000, C382S274000, C382S275000, C250S208100, C348S312000

Reexamination Certificate

active

07630103

ABSTRACT:
When a monochromatic mode is set, a CPU outputs a SW signal and executes a control to input an output from a monochromatic reading line sensor to a CCD signal processing section. Then, after a black level adjustment period ends and a black reference level reaches a desired value, the CPU starts reading of a black reference signal for shading correction. When a color mode is set, the CPU outputs a SW signal and executes a control to input an output from a color reading line sensor to the CCD signal processing section. After the black level adjustment period ends and the black reference level reaches a desired value, the CPU starts reading of a black reference signal for shading correction.

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