Canon Kabushiki Kaisha

Kazuaki Aoki

Naoyuki Yamamoto

Koji Takematsu

Yasuo Nami

Shouhei Takeda

Masahiro Nawa

Kyota Miyazaki

Hajime Sekiguchi

Ayumu Murakami

Shinichi Onodera

An image heating apparatus includes a hollow image heating roller having a through hole at one axial end portion side thereof; a bearing fitted around the roller; a heat insulating bush fitted around the roller between the roller and the bearing; a retaining ring for preventing the heat insulating bush from moving relative to the roller; an annular spacer provided between the heat insulating bush and the retaining ring, the annular spacer being provided with an inwardly protruded key portion engageable with the through hole.

Image heating apparatus and recording material feeding apparatus

An image heater a hollow heating roller having a hole at an axial end portion thereof; a bearing supporting the heating roller; a heat insulating bush fitted between an outer surface of the heating roller and the bearing; a retaining ring for retaining the heat insulating bush in an axial direction of the heating roller, the retaining ring including a projection engaging with the hole; an annular spacer provided between the retaining ring and the heat insulating bush, wherein the spacer includes a connecting portion having a connecting hole, the retaining ring includes a hooking portion engaging with the connecting hole.

Image heating apparatus

An image heating apparatus includes a roller, a heating portion disposed within the roller, a bearing portion fitted around an end portion of the roller to rotably support the roller, and a retaining ring attached at an axially predetermined position of the roller to restrict the roller from moving in a axial direction of the roller with respect to the bearing portion. The retaining ring includes first and second projections fitted into a hole portion of the roller. Profiles of side surfaces of these first and second projections abutting edges of the hole portion in a circumferential direction are recessed in the circumferential direction.

Image heating apparatus, bearing mounting structure and retaining ring

A replacement fixing belt to be used in a fixing apparatus, the replacement fixing belt including: an endless base layer; a toner releasing layer provided on a surface of the replacement fixing belt; and a lubrication film formed on an inner surface of the endless base layer by applying to the inner surface a liquid in which a fluorinated oil and fluorinated solid lubricant particles are dispersed in a volatile solvent.

Replacement fixing belt and method of replacing a fixing belt

A fixing apparatuscapable of reducing noise during a fixing operation using a fixing belthaving a metal layer includes the fixing beltstretched between a fixation rollerand a fixation tension roller. The fixing apparatusfurther includes a coilwhich is disposed opposite from the fixation tension rollervia the fixing beltand is supplied with an AC (600 V, 25 kHz at maximum) by an IH controller, so that the fixing beltand the fixation tension rollerare simultaneously heated by induction heating. In the fixing apparatus, insulating belt flangesandare attached to the fixation tension rollerat both end portions of the fixation tension rollerto limit movement of the fixing beltin a width direction of the fixing belt

A toner accommodating container part usable with a toner supply container detachably mountable to a main assembly of an electrophotographic image forming apparatus includes (a) a toner accommodating portion for accommodating toner; (b) a toner supply port for discharging the toner accommodated in the toner accommodating portion, wherein the toner supply port is positioned by the main assembly of the apparatus when the toner supply container is mounted to the main assembly of the apparatus; (c) a positioning portion to be positioned by the main assembly of the apparatus when the toner supply container is mounted to the main assembly of the apparatus, wherein the positioning portion is provided at a lower surface of the toner accommodating container part when the toner supply container is mounted to the main assembly of the apparatus, and is disposed at a side opposite from a side having the toner supply port in a longitudinal direction of the toner accommodating container part.

Toner accommodating container part, toner supply container and electrophotographic image forming apparatus

An image forming apparatus includes a photosensitive drum, a charger detachably mountable with respect to a main body of the image forming apparatus and having a charging wire, a wire electrode for receiving a voltage to be supplied to the charging wire, a grid, and a grid electrode for receiving a voltage to be supplied to the grid, a wire power-feeding contact arranged to come into contact with the wire electrode, and a grid power-feeding contact arranged to come into contact with the grid electrode, wherein, in mounting the charger in the image forming apparatus, the wire electrode comes into contact with the wire power-feeding contact after the grid electrode comes into contact with the grid power-feeding contact.

Image forming apparatus in which a charger provided with a charging wire

An image fixing apparatus includes a heater; a movable film in contact with the heater and movable together with a recording material carrying an image to be fixed; a pressing rotatable member for urging the recording material and the film to the heater; and wherein the heater is substantially crowned in a direction perpendicular to a movement direction of the film, and the pressing rotatable member is substantially reversely crowned in the same direction.

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Moriya, Japan

Kazuaki Aoki