- Patent Title: Image heating apparatus and image forming apparatus that control a temperature at which energization to a heater is turned off based on a temperature rise rate per unit time of a detection temperature
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Application No.: US15988454Application Date: 2018-05-24
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Publication No.: US10437185B2Publication Date: 2019-10-08
- Inventor: Yusuke Yamaguchi , Masayuki Tamaki , Hiroki Kawai , Ikuo Nakamoto
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Venable LLP
- Priority: JP2017-106381 20170530; JP2018-078305 20180416
- Main IPC: G03G15/20
- IPC: G03G15/20 ; G03G15/00

Abstract:
An image heating apparatus includes a controller configured to control a temperature at which energization to a heater is turned off, depending on a detection temperature of a detecting portion, wherein, when a temperature rise rate per unit time of the detection temperature of the detecting portion is a first rise rate, the controller turns off the energization to the heater in response to the detection temperature reaching a first temperature, and, when the temperature rise rate per unit time is a second rise rate that is less than the first rise rate, the controller turns off the energization to the heater in response to the detection temperature reaching a second temperature that is greater than the first temperature.
Public/Granted literature
- US20180348681A1 IMAGE HEATING APPARATUS AND IMAGE FORMING APPARATUS Public/Granted day:2018-12-06
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