Image heating apparatus
AssigneeCanon Kabushiki Kaisha
InventorShinichi Takata
Life of this patent
Estimating the term…
Abstract
An image heating apparatus has a heating member for heating an image on a recording material, a backup member for forming a nip in cooperation with the heating member, and an electric power supply control device for controlling electric power supplied to the heating member so that the temperature of the heating member may be maintained at a set temperature. When the recording material is not in the nip as a plurality of recording materials are continuously heated, the electric power supply control device can select first control in which temperature control is effected so that the heating member may maintain the set temperature, and second control in which temperature control is not effected and the electric power supply to the heating member is not effected.
Claims9
An image heating apparatus comprising:
- a heating member for heating an image on a recording material;
- a backup member for forming a nip in cooperation with said heating member;
- and
- electric power supply control means for controlling electric power supplied to said heating member so that a temperature of said heating member may be maintained at a set temperature during an image forming operation;
- wherein when the recording material is not in the nip as a plurality of recording materials are being continuously heated, said electric power supply control means selects a first control or a second control in conformity with a information on spacing between the recording materials when the plurality of recording materials are being continuously heated,
- and wherein the first control is such a control that the electric power is supplied so that said heating member is maintained at the set temperature and the second control is such a control that the electric power is not supplied to said heating member regardless of the temperature of said heating member.
Dependencies are inferred from the claim text.