| 摘要 |
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.
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