Canon Kabushiki Kaisha

Ayano Saito

Shigeru Tanaka

Akiyoshi Shinagawa

Yasuharu Toratani

Suguru Takeuchi

Hiroyuki Takahashi

Sho Matsui

Kengo Koyama

Shuhei Yasuda

A fixing device includes an endless belt configured to heat a recording material, a pressure member contacting an outer circumferential surface of the endless belt to form a nip portion, and a pad. A length of the endless belt is larger than a length of the pad in a width direction of the endless belt. The pad includes a first surface forming the nip portion, a second surface facing the first surface, and a third surface connecting the first surface and the second surface in the width direction and formed in a conveyance direction of the recording material. And the third surface has a curved shape in a cross section orthogonal to the conveyance direction of the recording material.

Fixing device and image forming apparatus with nip portion that prevents belt cracking and oil leakage

An image forming apparatus includes a transfer portion, a fixing unit, a conveyance belt configured to convey a sheet from the transfer portion toward the fixing unit, a driving portion configured to drive the conveyance belt, and a controller configured to control the driving portion. The controller is configured to, in a case of switching the image forming apparatus to a standby state in which the image forming apparatus is ready to start an image forming operation and stands by for input of an image forming job, execute preheating in which the fixing unit is preliminarily heated, and cause the driving portion to rotate the conveyance belt while the preheating is executed.

Image forming apparatus

Growing community of inventors

Chiba, Japan

Ayano Saito