Image-reading apparatus for reading an image on a document...

Details Image-reading apparatus for reading an image on a document... Image-reading apparatus for reading an image on a document...

2002-12-30

2008-12-02

Lee, Cheukfan (Department: 2625)

Facsimile and static presentation processing

Facsimile

Picture signal generator

C358S474000, C358S443000, C358S445000, C358S451000, C382S298000, C382S299000, C382S258000

Reexamination Certificate

active

07460280

ABSTRACT:
An image-reading apparatus reads an image on a document by controlling a main-scanning operation in accordance with an index period, a sub-scanning operation in accordance with a line-thinning rate, and a reading velocity of reading the image in a sub-scanning direction in accordance with a magnification factor. The apparatus includes an inputting section to input the magnification factor, an index period changing section to control the index period, based on the magnification factor, and a line-thinning rate changing section to control the line-thinning rate, based on the magnification factor. The index period changing section may select one of a plurality of index periods, including at least normal and long index periods, to control the index period. The thinning-rate changing section may select one of a plurality of line-thinning rates, including line-thinning rates indicating activation and deactivation of a line-thinning operation, to control the line-thinning rate.

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