Pressure developing device

Details Pressure developing device Pressure developing device

1989-06-20

1991-02-26

Hix, L. T.

Photocopying

Projection printing and copying cameras

With developing

354304, G03B 2732

Patent

active

049965549

ABSTRACT:
Disclosed is a pressure developing device having a pair of pressure rollers for pressurizing a photo and pressure sensitive recording sheet and a developing sheet in an overlapped state, the device comprising a plurality of spring members for supplying a variable push force to the pair of pressure rollers and control means for controlling the means for supplying a push force so as to pressurize the central portion of the recording sheet and the developing sheet greater than the side portion. Thus, the photo and pressure sensitive sheet and/or the developing sheet is prevented from being wrinkled.

REFERENCES:
patent: 4079303 (1978-03-01), Cox
patent: 4331911 (1982-05-01), Park
patent: 4340823 (1982-07-01), Miyazawa
patent: 4468571 (1984-08-01), Heavey et al.
patent: 4488057 (1984-12-01), Clarke
patent: 4645995 (1987-02-01), Terrell et al.
patent: 4827312 (1989-05-01), Ogiwara et al.
patent: 4885521 (1989-12-01), Crampton

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