Photocopying – Projection printing and copying cameras – Combined with or convertible to a contact printer
Patent
1986-12-24
1989-04-11
Grimley, A. T.
Photocopying
Projection printing and copying cameras
Combined with or convertible to a contact printer
355 4, 346108, 346160, 358300, G03G 1504
Patent
active
048210650
ABSTRACT:
A recording apparatus such as a laser beam printer has a plurality of photosensitive drums and a plurality of laser beam emitting means associated with the respective photosensitive drums and adapted for forming latent images on the respective photosensitive drums. Controlling means are provided for controlling the laser beam emitting power of the respective beam emitting means, in accordance with the result of a determination as to whether the potential of the surface of at least one of the photosensitive drums is at a normal level or whether the laser beam emitting means is at a predetermined level.
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Ishii Hiroaki
Sato Yukio
Udagawa Yutaka
Wataya Masafumi
Canon Kabushiki Kaisha
Grimley A. T.
Pendegrass J.
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