Dust-free scanner

Details Dust-free scanner Dust-free scanner

1996-12-19

1998-02-10

Grimley, Arthur T.

Facsimile and static presentation processing

Facsimile

Picture signal generator

399 98, H04N 100, G03G 1504, G03G 2100

Patent

active

057175055

ABSTRACT:
A dust-collecting padding is placed at the leading edge of the scan window of a scanner. When this dust-collecting padding is in contact with the document to be scanned, the dust particles on the document are collected by the dust-collectng padding, thus maintaining the cleanliness of the document and the scan window. The focal point of the scanning light, where the document is read, can be adjusted to be located away from the surface of the glass window, and thus any dust particles lying on the glass surface are off focus and do not adversely affect the quality of scanning much.

REFERENCES:
patent: 4295734 (1981-10-01), Tsuda et al.
patent: 5001577 (1991-03-01), Lee
patent: 5130807 (1992-07-01), Tanabe et al.
patent: 5453852 (1995-09-01), Morikawa et al.

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