US 12,078,947 B2
Image forming apparatus
Takashi Uehara, Chiba (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by Canon Kabushiki Kaisha, Tokyo (JP)
Filed on Jan. 13, 2023, as Appl. No. 18/154,141.
Claims priority of application No. 2022-005896 (JP), filed on Jan. 18, 2022.
Prior Publication US 2023/0251593 A1, Aug. 10, 2023
Int. Cl. G03G 15/20 (2006.01); G03G 15/00 (2006.01)
CPC G03G 15/205 (2013.01) [G03G 15/2064 (2013.01); G03G 15/5004 (2013.01); G03G 2215/2038 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An image forming apparatus, comprising:
a heating unit including a heating rotation member configured to heat a recording medium:
a pressure rotation member which contacts the heating rotation member to form a nip portion to fix a toner image to the recording medium,
a heat source configured to heat the heating rotation member, the heat source including a first heater and a second heater, and
a control unit configured to control the first heater and the second heater,
wherein the image forming apparatus is operable to transition to:
a fixing state in which an operation to fix the toner image to the recording medium is performed by receiving a job; and
a standby state, to wait for the job, in which an operation to fix the toner image to the recording medium is not performed,
wherein a rotation speed of the heating rotation member in the standby state is lower than the rotation speed of the heating rotation member in the fixing state,
wherein the control unit is configured to:
stop supplying power to the first heater and allow supplying power to the second heater in the standby state; and
allow supplying power to the first heater and the second heater in the fixing state.