Patent ID: 9213280
Filing Date: 2015-12-15
Classification: G03G

Abstract:
1. An image-forming apparatus, comprising: an image forming unit which forms an unfixed toner image on a recording material; a fixing unit which heats the unfixed toner image formed by the image forming unit and fixes the image to the recording material, the fixing unit having a heat generating member which generates heat by power supplied from a commercial AC power source via a choke coil; and a control unit which controls the supply of power from the commercial AC power source to the heat generating member per one control cycle, wherein the control unit controls the supply of power to the heat generating member by control including phase control during printing for performing an image forming operation by the image forming unit, and controls the supply of power to the heat generating member by wave number control during standby for awaiting a print instruction, and wherein a time period whose length corresponds to the one control cycle during the standby is no less than 34 half-waves of AC wave forms.