Fixing device and image forming apparatus including same

摘要

A fixing device including a fixing member, an opposing member, a plurality of heat sources, and a voltage detector. The opposing member is disposed opposite the fixing member to contact the fixing member to form a nip portion at which an unfixed image on a recording medium is fixed. The plurality of heat sources heats the fixing member. The voltage detector detects an applied voltage of at least one of the plurality of heat sources. Upon detection of the applied voltage of the heat sources by the voltage detector, a voltage is applied to at least one of the heat sources.

主权项

1. A fixing device, comprising:
a fixing member; an opposing member disposed opposite the fixing member, the opposing member configured to contact the fixing member to form a nip portion at which an unfixed image on a recording medium is fixed; a voltage detector configured to detect a first voltage during a voltage detection operation occurring when the fixing device returns from a standby state; and a plurality of heat sources electrically connected to a same commercial power source configured to apply, when the voltage detector detects the first voltage, the first voltage to at least one less than all of the plurality of heat sources to heat the fixing member such that the at least one less than all of the plurality of heat sources are enabled heat sources configured to heat the fixing member using the first voltage generated by the commercial power source.