Photocopying – Including fiber optics
Patent
1986-11-17
1988-06-28
Grimley, A. T.
Photocopying
Including fiber optics
355 4, 355 14D, G03G 1500, G03G 1501
Patent
active
047543019
ABSTRACT:
An image forming apparatus includes a plurality of the developing devices for developing the latent image formed on an image bearing member. The plural developing devices are each movable between its developing position for developing the latent image on the image bearing member and its retracted position away from the image bearing member. The image forming apparatus includes a shutter for selectively opening and closing the developing aperture of the developing device of one of the developing devices. The shutter opens and closes the developing aperture of said one of the developing devices in association with movement of the other developing device between the developing position and the retracted position.
REFERENCES:
patent: 3570453 (1971-03-01), Nuzum
patent: 4077358 (1978-03-01), Kito
patent: 4336994 (1982-06-01), Banton
patent: 4460267 (1984-06-01), Ogawa
Kasamura Toshirou
Kimura Akiyoshi
Koike Michiro
Kubota Atsushi
Kusumoto Toshihiko
Canon Kabushiki Kaisha
Grimley A. T.
Pipala Ed
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