Automatic power turn-off apparatus for an electronic apparatus

Details Automatic power turn-off apparatus for an electronic apparatus Automatic power turn-off apparatus for an electronic apparatus

1987-09-09

1989-09-26

Jennings, Derek S.

Electricity: electrical systems and devices

Safety and protection of systems and devices

307140, 307141, 3071414, 355206, H02H 300

Patent

active

048705268

ABSTRACT:
In an automatic power turn-off apparatus, a signal for turning off power supply is outputted from a timer IC when time set by a power-off time setting key arrives, whereby the power supply of an associated copying apparatus is turned off. In the turn-off period, if an MPU determines that the copying apparatus is in trouble, the turn-off of the power supply is cancelled and the occurrence of the trouble in the copying apparatus is displayed in a display device to notify the user of the trouble.

REFERENCES:
patent: 4090787 (1978-05-01), Hubbard et al.
patent: 4245296 (1981-01-01), Small et al.
patent: 4436408 (1984-03-01), Inuzuka et al.
patent: 4480195 (1984-10-01), Sawaki et al.

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