Photocopying – Projection printing and copying cameras – With developing
Patent
1988-06-03
1990-07-31
Hix, L. T.
Photocopying
Projection printing and copying cameras
With developing
355 28, 355 68, G03B 2752
Patent
active
049453823
ABSTRACT:
In a printing apparatus, a relatively long film having a photosensitive surface composed of photosensitive microcapsules is withdrawn from a supply spool and selectively exposed to light to form a photographed film frame prior to being passed through a nip between urged-together press rollers and then wound onto a take-up spool, sheets of developing paper are delivered one at a time by a paper supply roller from a stack of the sheets for passage between the press rollers with each delivered sheet facing a respective exposed area of the film so as to be pressed together therewith, and a roller drive assembly including a first reversible motor operative in first and second directions in printing and rewinding modes, respectively, a first transmission including a first one-way clutch through which the first motor drives the paper supply roller means only when the first motor operates in the first direction in the printing mode, a second transmission including a second one-way clutch through which the supply spool is rotated in a direction to rewind the film only when the first motor operates in the second direction in the rewinding mode, and a second reversible motor operative in first and second directions for driving the press rollers in corresponding first and second directions in the printing and rewinding modes, respectively.
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patent: 4648699 (1987-03-01), Holycross et al.
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Hitachi Akio
Sato Tatsuru
Shirakura Akira
Yui Yasuji
Hix L. T,.
Rutledge D.
Sinderbrand Alvin
Sony Corporation
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