Canon Kabushiki Kaisha

Tatsuo Yasui

Takuya Hasegawa

Junichi Moteki

Akiyoshi Shinagawa

Ikuo Nakamoto

Toru Katsumi

Takuma Tadomi

Takahiro Ohnishi

Koji Takematsu

Tomoaki Tanto

Keiichi Mizukami

Kazuki Tada

Kenichi Tanaka

Rikiya Takemasa

Tomoyuki Kuriyama

A fixing unit includes an endless belt, a heating unit configured to heat the belt, a pressure rotary member configured to form a fixing nip portion that nips and conveys a recording material with the belt, a pad configured to press the belt toward the pressure rotary member, a sliding sheet provided on the pad and configured to slide against the belt, a plate-like member configured to fix the sliding sheet to the pad, the sliding sheet being fixed in a manner sandwiched between the plate-like member and the pad, and fixing tools configured to fix the plate-like member at a plurality of positions along a longitudinal direction of the plate-like member. A width of the sliding sheet is wider than a width of the fixing nip portion and narrower than a width of the plate-like member in the longitudinal direction.

Fixing unit

A fixing device includes an endless belt member, a rotary member, a nip portion forming member and a steering roller. The steering roller is disposed inside the belt member and configured to be swung to control a position of the belt member in a width direction of the belt member. The steering roller includes a lubricant impregnated portion impregnated with a lubricant and contacting an inner peripheral surface of the belt member.

Fixing device including an endless belt member and a steering roller providing lubrication to the endless belt member

Fixing unit having a sliding sheet with a width in a longitudinal direction smaller than the width of first and second contact members

A fixing device includes a first rotatable member with a heater, a second rotatable member contacting the first rotatable member and forming a fixing nip, a pressing unit pressing the first rotatable member to the second rotatable member in a pressing direction, a pair of side boards disposed with a space in the widthwise direction, and first, second and third stays supporting the pair of side boards. The first stay is provided upstream of a center of the fixing nip in the pressing direction and upstream of the center in a feeding direction of a recording material. The second stay is provided upstream of the center in the pressing direction and downstream of the center in the feeding direction. The third stay is provided downstream of the center in the pressing direction and at least one of upstream and downstream of the center in the feeding direction.

Fixing apparatus having stay members for maintaining alignment of rotatable members thereof

A fusing apparatus having a heating rotary member, a pressing rotary member, a flange, a fusing frame, a pressing member, and a plate. The heating rotary member heats a recording medium and includes a heater and a film that rotates. The pressing rotary member rotates to press an outer circumferential surface of the film and performs fusing of a toner image on the recording medium. The flange supports the heater. The fusing frame supports the pressing rotary member and has a positioning hole. The pressing member presses the flange. The plate includes a pressure receiving portion and an insertion portion. The pressure receiving portion is pressed by the pressing member and the insertion portion is inserted into a positioning hole and positioned in a first state. The insertion portion is removed from the positioning hole in a second state where the pressing member further contracts from the first state.

Fusing apparatus

Fixing unit having a pad to press a belt on a supporting member and a sliding sheet fixed to the supporting member

An image heating apparatus includes an endless belt in contact with a toner image on a recording material, a separation member that separates the recording material from the endless belt, a regulation member that regulates a longitudinal position of the endless belt, and an interlocking mechanism. The interlocking mechanism interlocks a movement of an end portion of the separation member on the same side as a first edge of the endless belt with movement of the regulation member. The interlocking mechanism performs interlocking so that, when the regulation member moves toward an upstream in a conveyance direction, the end portion of the separation member moves toward the upstream in the conveyance direction.

Image heating apparatus having a separation plate to separate a sheet from an endless belt

An image forming apparatus includes a main assembly; a transfer portion; a fixing portion; an opening provided on the main assembly; a door; a first guiding member provided in the main assembly and a second guiding member provided on the door and is interlaced with the first guiding member; a supporting plate supporting the first guiding member; the first guiding member has a convex curved surface of a shape such that a force received by the first guiding member when the door is opened with a sheet jammed between the first and second guiding members is in a direction of urging the first guiding member to the supporting plate.

Image forming apparatus

Growing community of inventors

Saitama, Japan

Tatsuo Yasui