Photocopying – Projection printing and copying cameras – Illumination systems or details
Patent
1979-06-28
1982-03-23
Hix, L. T.
Photocopying
Projection printing and copying cameras
Illumination systems or details
355 83, 315307, G03B 2773
Patent
active
043209645
ABSTRACT:
An image formation apparatus includes a processing station for forming an image on a recording medium, input device for setting the density of the image formed on the recording medium to a desired value; a controller for controlling the power supplied to the process station in response to the input device setting to form the image of the desired density set by the input device; and a range-shifter for shifting the range of the power controllable by the controller to maintain the density substantially constant.
REFERENCES:
patent: 3742295 (1973-06-01), Irie
patent: 3884576 (1975-05-01), Mochimaru et al.
patent: 3898006 (1975-08-01), Kimura et al.
patent: 4080061 (1978-03-01), von Stein et al.
Ishida Masato
Maeshima Katsuyoshi
Sakamaki Hisashi
Brady W. J.
Canon Kabushiki Kaisha
Hix L. T,.
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