Electronic document scanner with a transparent imaging and drive

Details Electronic document scanner with a transparent imaging and drive Electronic document scanner with a transparent imaging and drive

1990-04-09

1991-10-15

Boudreau, Leo H.

Facsimile and static presentation processing

Facsimile

Picture signal generator

358491, 358496, 358498, H04N 106

Patent

active

050579428

ABSTRACT:
An improvement in the electronic imaging of documents, of the type wherein document sheets are transported at a uniform constant velocity past an electronic imaging member with the document sheet surface to be imaged maintained at a constant imaging distance from the electronic imaging member, wherein the document is fed through a document position and velocity holding and feeding nip formed between the outside wall of a rotatable transparent cylinder and an opposing nip forming member moving therewith, preferably an idler belt, and wherein the electronic imaging member is mounted inside the transparent cylinder to image this nip area through a narrow portion of the wall of the rotatable transparent cylinder and thereby to image scan only the narrow portion of the document which is being fed through and held in the nip.

REFERENCES:
patent: 3737575 (1973-06-01), Kominami
patent: 4287536 (1981-09-01), Wiggins
patent: 4295167 (1981-10-01), Wiggins
patent: 4429333 (1984-01-01), Davis et al.
patent: 4447830 (1984-05-01), Stoffel
patent: 4496984 (1985-01-01), Stoffel
patent: 4536077 (1985-08-01), Stoffel
patent: 4571636 (1986-02-01), Itoh
patent: 4641357 (1987-02-01), Satoh
patent: 4743974 (1988-05-01), Lockwood
Xerox Disclosure Journal, vol. 8, No. 3, May/Jun. 1983, p. 263.
Xerox Disclosure Journal, vol. 12, No. 6, Nov./Dec. 1987, p. 299.

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