Automatic shut-off device of a recording apparatus

Details Automatic shut-off device of a recording apparatus Automatic shut-off device of a recording apparatus

1982-12-27

1984-10-30

Hix, L. T.

Electrical transmission or interconnection systems

Switching systems

Switch actuation

3071414, 3071418, 355 69, 355 14R, H01H 954

Patent

active

044801955

ABSTRACT:
An automatic shut-off device for a recording apparatus such as a copying machine has a commercial power source for powering the machine during an ON-state, charging means connected to the power source for charging a battery, control means for providing a first signal for an ON-state and a second signal for an automatic shut-off state, first means responsive to said first signal to effect charging of said battery, and second means responsive to said second signal to electrically disconnect the commercial power source, and to supply an output power from said battery for selected operational control functions for the period of said automatic shut-off state. Thus, in the automatic shut-off state, the machine maintains certain operational control functions, such as low power displays, powered by the battery but is disconnected from the commercial power source, thereby reducing the risk of an accident such as a short circuit.

REFERENCES:
patent: 4089602 (1978-05-01), Noguchi et al.
patent: 4270058 (1981-05-01), Schornack

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