Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Patent
1993-01-07
1994-04-05
Messinger, Michael
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
307 40, 324158D, 250221, H01J 4014, H02J 100
Patent
active
053007689
ABSTRACT:
An image forming apparatus according to the present invention includes a first processing device which processes in a normal mode for dynamically driving photoelectric detectors in groups so as to sequentially read detection signals from the photoelectric detectors in the groups, second processing device which process in a photoelectric detector check mode for driving a designated group of photoelectric detectors. Switching between processes by the processors is accomplished by a switching device. When the photoelectric detectors are checked, the photoelectric detector driving mode is switched from the normal mode to the photoelectric detector check mode by the switching device.
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Sakaguchi Takeshi
Wakikaido Takahiro
Messinger Michael
Mita Industrial Co. Ltd.
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