Apparatus for producing a seamless copy from an unjointed origin

Details Apparatus for producing a seamless copy from an unjointed origin Apparatus for producing a seamless copy from an unjointed origin

1978-12-08

1980-11-04

Cardillo, Jr., Raymond F.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358283, H04N 122, H04N 126, H04N 138

Patent

active

042323452

ABSTRACT:
A copying system has an artwork carrier cylinder and a printing cylinder, and electronic control means "stretches" the copy to exactly 360.degree. on the printing cylinder, to produce matched endless joints. The circumferential length of the original is first determined and then the original is scanned by a "read" scanner, the output of which is digitized and temporarily stored in memory. The contents of the memory are used to modulate a power laser during scanning to "write" on the printing cylinder but readout from the memory is adjusted in accordance with the circumferential length determined to produce the required jointing. The system may be varied to produce flexographic rollers, gravure cylinders or general copying.

REFERENCES:
patent: 3272918 (1966-09-01), Koll et al.
patent: 3541245 (1970-11-01), Wilby
patent: 3636251 (1972-01-01), Daly et al.
patent: 3760098 (1973-09-01), de Voss et al.
patent: 3832484 (1974-08-01), Tanaka
patent: 3944726 (1976-03-01), Ito
patent: 3949159 (1976-04-01), Ricards et al.
patent: 3956583 (1976-05-01), Pugsley
patent: 3975761 (1976-08-01), Taudt et al.
patent: 4001495 (1977-01-01), Tauszig
patent: 4013829 (1977-03-01), Baar et al.
patent: 4057838 (1977-11-01), Doelves et al.

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