Method and apparatus for supplying battery power to a timer circuit within a printer while the printer is powered off
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Aug 24, 2004
Grant Date -
Sep 13, 2001
app pub date -
Feb 13, 2001
filing date -
Feb 15, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
There is disclosed a power supply apparatus which can reduce consumption power while an electronic device such as a printing apparatus or the like is not in use irrespective of the scale of a control circuit of that device. Such unit supplies electric power from a battery 308 to detect an ON instruction of a power switch 401 even after an OFF instruction to the power switch is detected, so as to detect the ON/OFF instruction to the power switch 401 which is used for controlling electric power supply from a power supply circuit 20 to a print controller 30 of the printing apparatus, and controls to stop power supply from the power supply unit 20 to the print controller 30 upon detecting an OFF instruction to the power switch 401.
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