Photocopying – Including fiber optics
Patent
1986-06-13
1989-03-21
Braun, Fred L.
Photocopying
Including fiber optics
118657, 355 15, G03G 1508
Patent
active
048148164
ABSTRACT:
A developing device including a developing roller having on its surface a layer of developing agent forced against a photosensitive member to perform developing. The developing roller is brought into contact with the photosensitive member under a predetermined pressure when a developing operation is performed, and is brought out of contact with the photosensitive member or kept in contact with the photosensitive member under a pressure lower than the predetermined pressure when no developing operation is performed.
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patent: 3953121 (1976-04-01), Reichart
patent: 4032227 (1977-06-01), Hubbard et al.
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patent: 4405226 (1983-09-01), Kimura et al.
patent: 4410259 (1983-10-01), Yamagata et al.
patent: 4439034 (1984-03-01), Daniels
patent: 4583832 (1986-04-01), Kasamura et al.
patent: 4640608 (1987-02-01), Higaya et al.
Braun Fred L.
Ricoh & Company, Ltd.
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