Photocopying – Projection printing and copying cameras – Original moves continuously
Patent
1979-12-13
1982-03-23
Stoner, Jr., Bruce H.
Photocopying
Projection printing and copying cameras
Original moves continuously
188 77R, 271 3, 271272, 271277, 355 75, G03B 2746, G03B 2762, B65H 512
Patent
active
043209637
ABSTRACT:
An original feeding system having a rotary drum provided with sheet original hold-down claws for clamping the leading edge of the sheet original against the surface of the periphery of the rotary drum and with a control mechanism for keeping the claws in clamping engagement with the sheet and releasing the claws from clamping engaging therewith. A belt drive is provided for feeding the copy sheet by holding same between the rotary drum and the belt. The rotary drum is adapted to be stopped in its rotation before it completes one revolution, while the belt drive continues to be driven to feed the sheet original, which is subjected to the frictional force exerted by the belt and slides along the surface of the rotary drum. Therefore, it is possible to feed a sheet original having a length larger than the circumferential length of the rotary drum.
REFERENCES:
patent: 1778570 (1930-10-01), Soresi
patent: 2392068 (1946-01-01), Sexton
patent: 3196767 (1965-07-01), Eichorn
patent: 3258530 (1966-06-01), Fowlie et al.
patent: 3614090 (1971-10-01), Del Vecchio et al.
patent: 4072306 (1978-02-01), Idstein
Ricoh Co. Ltd.
Stoner Jr. Bruce H.
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