Canon Kabushiki Kaisha

Atsushi Ishigami

Kenichi Tanaka

Koji Takematsu

Takeshi Kozuma

Taiya Hirayama

Keisuke Yoshida

Shutaro Saito

A fixing apparatus includes a belt, a pad member, a pressure member, a heating roller, a stretching roller, and, an outer stretching roller. The outer stretching roller disposed between the heating roller and the stretching roller and configured to press the heating roller from an outer surface of the belt and bring the belt into contact with the heating roller. In a cross section orthogonal to a rotation axis of the pressure member, a surface between the heating roller and the stretching roller of the belt in a state where the belt is pushed toward the heating roller by the outer stretching roller is located inside that of the belt in a state where the outer stretching roller is removed.

Fixing apparatus

An image heating apparatus including a rotatable heating member, a first motor configured to rotationally drive the rotatable heating member, a belt unit, a position detecting portion, a tilting mechanism, including a second motor for tilting the belt unit, a jam detecting portion, and a controller. When the occurrence of the jam is detected by the jam detecting portion during a tilting operation of the belt unit, the controller stops drive of the first motor and drive of the second motor in response to detection of the occurrence of the jam by the jam detecting portion.

Image heating apparatus

An image forming apparatus includes an image forming portion that forms a toner image on a recording material, and a first rotatable member and a second rotatable member, which form a nip therebetween in which the toner image, formed on the recording material by the image forming portion, is heated. A belt unit includes an endless belt that externally heats the first rotatable member, and a supporting mechanism rotatably supporting the endless belt. A moving mechanism moves the belt unit so as to be movable between a contact position and a spaced position. In addition, a controller executes a process in which one of the belt unit with a new endless belt and a new belt unit with a new endless belt is moved to the contact position, and then, the new endless belt is rotated for a predetermined time by the first rotatable member.

Image forming apparatus that performs a process of rotating a new endless belt before an image forming operation

A cleaning apparatus and a fixing apparatus include a cleaning web configured to remove toner adhering to a rotation member, the cleaning web including a recessed portion in at least a part thereof, and a displacement mechanism configured to situate a relative position between the rotation member and a pressure member configured to press the cleaning web toward the rotation member at a first position where the cleaning web is pressed toward the rotation member by the pressure member and at a second position where the rotation member and the pressure member are farther from each other than at the first position. The displacement mechanism situates the relative position at the second position based on an output of a detection position configured to detect a position of the recessed portion, so that a rear end of the recessed portion is not pressed toward the rotation member by the pressure member.

Growing community of inventors

Kashiwa, Japan

Atsushi Ishigami