Photocopying – Contact printing – Light boxes
Patent
1989-06-22
1990-08-28
Prescott, A. C.
Photocopying
Contact printing
Light boxes
355203, 355205, G03G 1500
Patent
active
049529757
ABSTRACT:
An image forming apparatus according to the present invention comprises an image forming part for forming images on recording papers, a trouble detection part for detecting troubles in image forming operation and stopping operation of the image forming part in response to trouble detection output, a counter part for counting the number of times of trouble occurrence in response to detection output from the trouble detection part, a mode setting part for allowing operation of the trouble detection part and inhibiting that of the counter part when the specific mode is set.
REFERENCES:
patent: 4260904 (1981-04-01), Horie et al.
patent: 4490035 (1984-12-01), Sugiura
patent: 4496237 (1985-01-01), Schrow
patent: 4530593 (1985-07-01), Kasuya et al.
patent: 4553830 (1985-11-01), Nguyen
patent: 4662740 (1987-05-01), Komori et al.
patent: 4816865 (1989-03-01), Hamano
patent: 4821070 (1989-04-01), Nakade et al.
patent: 4873549 (1989-10-01), Tada et al.
Ito Masazumi
Yasue Yoshihiko
Minolta Camera Kabushiki Kaisha
Prescott A. C.
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