Canon Kabushiki Kaisha

Yusuke Jinkoma

Atsushi Iwasaki

Tomonori Sato

Takashi Nomura

Kenji Takagi

Toshiya Kaino

An image forming apparatus includes: an image bearing member that carries a developer image; a transfer member that forms a transfer nip portion with the image bearing member and transfers the developer image in the transfer nip portion from the image bearing member to a recording material; a fixing portion that includes a heater and fixes the developer image to the recording material using heat of the heater; a temperature detection portion that detects a temperature of the fixing portion; a control portion that controls power supplied to the heater such that the temperature detected by the temperature detection portion becomes a predetermined control target temperature; and an acquisition portion that acquires a temperature of the image bearing member or the transfer member. The control target temperature is changed based on the temperature acquired by the acquisition portion.

Image forming apparatus

An image forming apparatus sets, in a case where a mode for executing a heating process a plurality of times is set, a target temperature of a fixing unit during a second heating process depending on image information about a toner image to be formed on a first surface of a recording medium immediately before a first heating process.

Image forming apparatus capable of increasing gloss level of toner image without increasing number of processes performed by fixing unit

In a heater according to the present invention, one of conductive lines is arranged to extend from a temperature detection element toward one end portion of a substrate in a lengthwise direction of the substrate, whereas the other the conductive line is arranged to extend from the temperature detection element toward the other end portion of the substrate in the lengthwise direction of the substrate, and at least one of the two conductive lines has an area that is inclined in both of the lengthwise direction and the widthwise direction of the substrate.

Growing community of inventors

Susono, Japan

Yusuke Jinkoma