Flat bed image scanner

Details Flat bed image scanner Flat bed image scanner

1996-08-29

1998-09-01

Coles, Edward L.

Facsimile and static presentation processing

Facsimile

Picture signal generator

358494, 358474, H04N 104

Patent

active

058018514

ABSTRACT:
A flat bed image scanner uses a contact image sensor to scan a document. The distance between the contact image sensor and the glass window, over which the document is placed, is minimized and held constant by inserting a lubricating element between the contact image sensor and the glass window. The lubricating element may comprise two pads placed at the two ends of the contact image sensor. The lubricating element can also be integrated structurally with the contact image sensor. The material of the lubricating element can be nylon or some other kinds of plastic. The lubricating element may also comprise two rollers placed at the two ends of the contact image sensor.

REFERENCES:
patent: 4989099 (1991-01-01), Koshiyouji et al.
patent: 5113268 (1992-05-01), Yoshida et al.
patent: 5251072 (1993-10-01), Fukuoka et al.
patent: 5610731 (1997-03-01), Itoh

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