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US 2023/0384723 A1Published application
Image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorsKIYOHARU KAKOMURA, TAKUYA MACHIDA
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Abstract
An image forming apparatus including a fixing unit that fixes a toner image on a recording material includes an acquisition unit configured to acquire grammage information about the recording material, and a temperature control unit configured to control a temperature of a heating rotary member of the fixing unit based on the grammage information. The temperature control unit changes the temperature control of the heating rotary member depending on the acquired grammage information about a predetermined number of recording materials within a predetermined time.
Claims4
An image forming apparatus comprising:
- a heating rotary member configured to heat a recording material;
- a pressing rotary member configured to press the heating rotary member, and to form a nip portion with the heating rotary member, and to fix a toner image on the recording material with the heating rotary member;
- an acquisition unit configured to acquire grammage information about the recording material;
- and
- a temperature control unit configured to control a temperature of the heating rotary member based on the grammage information,
- wherein the acquisition of the grammage information corresponding to a predetermined number of sheets of recording materials completed by the acquisition unit within a predetermined time period after a printing start signal for a job to form images on the predetermined number of sheets of recording materials is input, to control the temperature of the heating rotary member based on the grammage information corresponding to the predetermined number of sheets of recording materials, and
- wherein the acquisition of the grammage information corresponding to the predetermined number of sheets of recording materials not completed by the acquisition unit within the predetermined time period after the printing start signal for the job to form the images on the predetermined number of sheets of recording materials is input, to control the temperature of the heating rotary member based on the grammage information corresponding to a smaller number of sheets of recording materials than the predetermined number of sheets of recording materials.
4 more elements
Dependencies are inferred from the claim text.