Image forming apparatus having reduced power consumption...

Details Image forming apparatus having reduced power consumption... Image forming apparatus having reduced power consumption...

2005-05-17

2005-05-17

Grainger, Quana (Department: 2852)

Electrophotography

Machine operation

C399S008000

Reexamination Certificate

active

06895196

ABSTRACT:
There is provided an image forming apparatus which is capable of responding to a status request with the minimum possible energy consumption even when the image forming apparatus is in a sleep state, to thereby achieve energy conservation. A main-chip microcomputer Q701responds to an externally input status request when the image forming apparatus is in a normal standby mode, and enters an inoperative state where it does not respond to the externally input status request when the image forming apparatus is in a reduced power consumption mode. A 1-chip microcomputer Q702responds to the externally input status request on behalf of the main-chip microcomputer Q701when the image forming apparatus is in the reduced power consumption mode.

REFERENCES:
patent: 5867720 (1999-02-01), Hirano
patent: 5933581 (1999-08-01), Miyazaki et al.
patent: 6459496 (2002-10-01), Okazawa
patent: 6807907 (2004-10-01), Yamada

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