Image reading apparatus, image formation apparatus, image...

Details Image reading apparatus, image formation apparatus, image... Image reading apparatus, image formation apparatus, image...

2011-06-28

2011-06-28

Safaipour, Houshang (Department: 2625)

Facsimile and static presentation processing

Facsimile

Picture signal generator

C358S474000, C358S496000, C358S497000, C358S498000, C358S461000

Reexamination Certificate

active

07969622

ABSTRACT:
In the so-called sky-shot in which reading is performed with a platen cover (32) open, an output signal of a read image is compared with a white reference value generated from a white reference member (40). Only if a value greater than or equal to the white reference value exists in the output signal of the read image, a reading operation to be performed with a light source unit in an image sensor unit (33) turned off during an original (34) reading operation is added to each scan line reading operation.

REFERENCES:
patent: 5179454 (1993-01-01), Shinada
patent: 2006/0250661 (2006-11-01), Susaki
patent: 2007/0064285 (2007-03-01), Kohara
patent: 10-154221 (1998-06-01), None
patent: 2007-028413 (2007-02-01), None
patent: 2007-074510 (2007-03-01), None
International Search Report—PCT/JP2009/058580, International Searching Authority—Japan, mailed Aug. 11, 2009.
Written Opinion of the International Searching Authority—PCT/JP2009/058580, International Searching Authority—Japan, mailed Aug. 11, 2009.

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