- Patent Title: Image heating apparatus and image formation apparatus with power supply control that sets a target temperature for each of a plurality of regions of recording material
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Application No.: US17150621Application Date: 2021-01-15
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Publication No.: US11320768B2Publication Date: 2022-05-03
- Inventor: Hiroshi Kataoka
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Rossi, Kimms & McDowell LLP
- Priority: JPJP2018-134919 20180718
- Main IPC: G03G15/20
- IPC: G03G15/20

Abstract:
An image heating apparatus includes an image heating portion including a heater, a tubular film having an inner surface in contact with the heater, and a pressure member that is in contact with the outer surface of the film and forms a nip portion for conveying a recording material between the outer surface and the pressure member. The image heating portion heats an unfixed toner image on the recording material by the heater. A temperature detection portion detects the temperature of the heater. A control portion controls electric power to the heater such that the temperature detected by the temperature detection portion is maintained at a predetermined control target temperature. An obtainment portion obtains image information for forming the unfixed toner image. The control target temperature is set, based on the image information, for each of a plurality of regions defined by dividing the recording material in the conveying direction.
Public/Granted literature
- US20210132529A1 IMAGE HEATING APPARATUS AND IMAGE FORMATION APPARATUS Public/Granted day:2021-05-06
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