Photocopying – Contact printing – Light boxes
Patent
1988-12-27
1990-09-18
Grimley, Arthur T.
Photocopying
Contact printing
Light boxes
355205, 355207, G03G 2100
Patent
active
049581880
ABSTRACT:
An image forming apparatus which, when a trouble is detected, discriminates between a minor trouble and a serious one which may cause a high extent of damage and puts a copying operation in an inoperative state, so that in case of the minor trouble a first reset switch operable by an operator is operated to release the inoperative state and in case of the serious trouble a second reset switch operable by a maintenance staff is operated to release the inoperative state so as not to allow the operator to release the inoperative state caused by the serious trouble, thereby preventing aggravation of damage caused by the trouble.
REFERENCES:
patent: 4162396 (1979-07-01), Howard et al.
patent: 4260904 (1981-04-01), Horie et al.
patent: 4470692 (1984-09-01), Shimizu et al.
patent: 4500971 (1985-02-01), Futaki et al.
patent: 4583834 (1986-04-01), Seko et al.
patent: 4627711 (1986-12-01), Schron
Grimley Arthur T.
Minolta Camera Kabushiki Kaisha
Royer William J.
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