Image forming device having a power consumption control...

Details Image forming device having a power consumption control... Image forming device having a power consumption control...

2008-01-29

2008-01-29

Chen, Sophia S. (Department: 2852)

Electrophotography

Machine operation

Having power supply

C399S037000, C399S045000, C399S067000, C399S070000

Reexamination Certificate

active

11258887

ABSTRACT:
A sheet counter counts points corresponding to the number of sheets subjected to a fixing process performed by a fixing unit during the image forming operation (during the copy state). A heater actuation time counter counts points corresponding to the heater actuation time (ON time) when a fixing operation is performed by a fixing unit during the image forming operation (during the copy state). When power consumption is high, a fixing control temperature can be set so as to reduce the power consumption during the non-image forming operating time (standby state and preheat state) by determining the power consumption (of the fixing unit) during the image forming operation based on the points counted by a sheet counter during one week, or points counted by a heater actuation time counter during one week.

REFERENCES:
patent: 6753973 (2004-06-01), Hashimoto et al.
patent: 7120371 (2006-10-01), Fujimori
patent: 2002/0071688 (2002-06-01), Maruyama
patent: 2005/0191076 (2005-09-01), Dan

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