Sheet scanner

Details Sheet scanner Sheet scanner

1991-03-08

1993-11-30

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Picture signal generator

358496, 358474, H04N 104

Patent

active

052670597

ABSTRACT:
A sheet scanner scans a predetermined image on each feedable paper. The sheet scanner scans every line of the predetermined image in order to generate image data corresponding to the predetermined image. The predetermined image consists of a plurality of lines. The sheet scanner has only two rollers, which are first and second rollers. Each paper is fed from the first roller to the second roller. A first tangential speed of the first roller is lower than a second tangential speed of the second roller so that each paper is spaced at a regular interval from the next paper. The sheet scanner can make a line density for every line of the image data constant. The line density is defined as being scanned lines in a predetermined period divided by a tangential speed of feeding the paper at that time. Therefore, blurred scanning never occur in the sheet scanner according to the present invention.

REFERENCES:
patent: 5057942 (1991-10-01), Kanehl et al.
patent: 5155603 (1992-10-01), Seok-Jae

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