Copying process for producing a seamless copy from an unjointed

Details Copying process for producing a seamless copy from an unjointed Copying process for producing a seamless copy from an unjointed

1980-06-03

1982-04-06

Cardillo, Jr., Raymond F.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358283, H04N 122, H04N 126, H04N 138

Patent

active

043239285

ABSTRACT:
A copying process for producing a seamless copy from an unjointed original mounted on a carrier cylinder utilizes electronic control circuitry to "stretch" the copy of the artwork to exactly 360.degree. on a 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.

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