Electrophotography – Machine operation – Having power supply
Patent
1996-04-10
1998-01-20
Brase, Sandra L.
Electrophotography
Machine operation
Having power supply
399 90, G03G 1500
Patent
active
057109591
ABSTRACT:
An image forming apparatus having a timer function includes a main switch for manually switching between supply and interruption of electric power to the apparatus, a detector for detecting whether the main switch is in a power-interruption state or in a power-supply state, a memory for storing a state indicating that the main switch is in a power-interruption state when it has been detected that the main switch is in a power-interruption state, a controller for placing the apparatus in a standby state in which an image can be formed or in a shutdown state in which an image cannot be formed during a preset time period, and a power supply for supplying power to the controller, wherein the apparatus is placed in a standby state even by a set shutdown time period in the case a power-interruption state is stored and wherein the apparatus is placed in a shutdown state during the set shutdown time period in the case the power-interruption state is not stored.
REFERENCES:
patent: 3669412 (1972-06-01), Ogawa
patent: 4436408 (1984-03-01), Inuzuka et al.
patent: 5325209 (1994-06-01), Manabe
patent: 5457516 (1995-10-01), Kim
patent: 5483464 (1996-01-01), Song
Funamizu Yoshihiro
Hirooka Kazuhiko
Kaji Hajime
Nozaki Tetsuya
Osari Yoshihito
Brase Sandra L.
Canon Kabushiki Kaisha
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