PURPOSE: To simplify the maintenance and inspection of a copying machine by simply checking the properiety of an input signal to be inputted to a control part by the counting operation on a display device displaying the number of copied sheets.
CONSTITUTION: Since the propriety of input signals from detectors S1, S2,...Sn mounted in each copying machine is displayed on a display device 3 for displaying the number of copied sheets by turning the copying machine to the test mode, the faults of input signals can be easily checked even if many input signals are inputted to a control part 4. Consequently the test of input signals is carried out efficiently for a short period and a fault place is easily detected by displaying the place on the display device 3 by using a check code.
NAKAYAMA KENICHIROU
TAKAHASHI IZUMI
SUGIYAMA TERUMASA
| JPS5011443A | 1975-02-05 | |||
| JPS5467439A | 1979-05-30 | |||
| JPS5547502A | 1980-04-04 | |||
| JPS5553344A | 1980-04-18 | |||
| JPS5569158A | 1980-05-24 |