Fixing device that controls electrical power supplied to a film based on a difference between detection temperature values output by a first temperature detecting member and a second temperature detecting member

A fixing device includes a cylindrical film including a heat generating layer, a first temperature detecting member contacting the film, and a second temperature detecting member contacting the film and provided at such a position that a temperature change at the position, at which the second temper...

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Bibliographic Details
Main Authors Imaizumi, Toru, Shinji, Takeshi, Doda, Kazuhiro, Wakatsu, Kohei, Narahara, Takashi
Format Patent
LanguageEnglish
Published 11.02.2020
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:A fixing device includes a cylindrical film including a heat generating layer, a first temperature detecting member contacting the film, and a second temperature detecting member contacting the film and provided at such a position that a temperature change at the position, at which the second temperature detecting member is provided, is slower in responsiveness than at a position at which the first temperature detecting member is provided. A controller stops supply of electrical power to the film depending on a difference between a detection temperature value output by the first temperature detecting member, and a detection temperature value output by the second temperature detecting member. In addition, a toner image, formed on a recording material, is heated by heat from the film and is fixed on the recording material.
Bibliography:Application Number: US201715699086