Canon Kabushiki Kaisha

Fumiki Inui

Masaki Hirose

Kazushi Nishikata

Satoru Izawa

Keita Nakajima

Shinji Hashiguchi

Koji Nihonyanagi

Satoru Taniguchi

Takashi Honke

Yutaka Kubochi

Eiji Uekawa

Taisuke Minagawa

Hirohiko Aiba

Kazuhide Kudo

Koichi Yamada

Kazunari Nishimoto

Mahito Yoshioka

Masato Hisano

Toshihiko Ochiai

Ryota Ogura

Akihito Kanamori

Eiichiro Kimizuka

Masataka Mochiduki

Atsushi Iwasaki

Takehiko Suzuki

Hiroshi Kataoka

Jun Agata

Hiroto Hasegawa

Hideyuki Matsubara

Masao Amano

Toshiya Kaino

Seiji Inada

Masami Takeda

Yasuaki Matsumoto

Hironobu Ata

Toshiki Nagase

Kenichi Nakao

Takao Kawadu

A discharging device includes an aligning unit for aligning stacked sheets as a sheet bundle, a discharging unit for discharging the sheet bundle, a discharged tray on which the sheet discharged by the discharging unit is stacked, and a support unit. The support unit supports the sheet bundle from below by extending in a sheet discharging direction of the sheet bundle while the sheet bundle is discharged to the discharged tray and to be accommodated in a direction opposite to the sheet discharging direction at timing when the discharging unit finishes discharging the sheet bundle.

Discharging device and image forming apparatus

A heater of the invention includes a substrate; a first conductive element and a second conductive element which are provided on the substrate along a longitudinal direction of the substrate; a heat generating element which is provided between the first conductive element and the second conductive element and generates heat with power supplied via the first conductive element and the second conductive element; and an electrode to which a conductive member for suppling power is connected, in which a heat generation amount of a region corresponding to a position at which an electrode of the heat generating element is provided is set to be greater than a heat generation amount of other regions.

Image heating device and heater used for image heating device

A heater of the invention includes a substrate; a first conductive element and a second conductive element which are provided on the substrate along a longitudinal direction of the substrate; a heat generating element which is provided between the first conductive element and the second conductive element and generates heat with power supplied via the first conductive element and the second conductive element; and an electrode to which a conductive member for supplying power is connected, in which a heat generation amount of a region corresponding to a position at which an electrode of the heat generating element is provided is set to be greater than a heat generation amount of other regions.

A fixing device includes a cylindrical film a pressing member, and a preventing member including a preventing surface configured to prevent movement of the film in a longitudinal direction, and a film rotation guiding surface. As viewed in the longitudinal direction of the film, the preventing surface includes first and second regions positioned downstream and upstream, respectively, of a nip center line with respect to a recording material feeding direction. The first region retracts from a longitudinal film end surface relative to the second region. The second region continuously extends in the recording material feeding direction from a portion upstream of the nip center line to a portion downstream of the nip center line, and has a length, with respect to a rotational direction of the film, that is greater at the portion upstream of the nip center line than at the portion downstream of the nip center line.

Fixing device having a preventing member that prevents folding of an end portion of a film

A fixing unit includes a fixing portion including a rotatable heating member and a rotatable pressing member, a feeding portion including a first rotatable member and a second rotatable member, a main assembly, an openable member rotatably provided to the main assembly through a shaft and a bearing portion, an urging member, an engaging portion, and a portion to be engaged. The openable member has a rotation center provided at a position at which a direction of moment acting on the openable member by an urging force of the urging member is the same as a direction in which the openable member opens. The bearing portion includes an elongated hole having a long axis extending along an urging direction of the urging member.

Fixing unit including a portion-to-be-engaged provided on an openable member, the portion-to-be-engaged being spaced from or engaged with an engaging portion based on movement of the openable member

A fixing device includes a rotatable cylindrical film, a contact member, a nip forming member, and regulating member. The regulating member includes an inner surface regulating surface that contacts and regulates a position of an inner surface of the film, and that, with respect to a rotational direction of the film, includes a first region remotest from a nip and a second region closer to the nip than the first region, the second region being positioned in a side upstream of a center of the nip with respect to a recording material feeding direction. The inner surface regulating surface is inclined so as to be spaced from the inner surface of the film toward a longitudinal center of the film, and a degree of inclination of the inner surface regulating surface is greater in the first region than in the second region.

Fixing device that regulates a position of an inner surface of a film

A fixing device for fixing an image formed on a recording material onto the recording material. The fixing device includes a heater contacting an inner surface of the film, a supporting member for supporting the heater, the supporting member being provided in a hollow space, a first portion for preventing lateral movement of the film in a generatrix direction of the film, the first portion being supported by a frame of the fixing device and holding the supporting member, and a second portion opposed to a surface of the heater where the heater contacts the film and elongated along a widthwise direction of the heater, the second portion being provided at the same position with the generatrix direction of the film.

Fixing device

A fixing device includes a cylindrical film; a plate heater including an electrode portion, wherein a lubricant is applied in a region where the heater contacts the film; a supporting member; and a sealing member contacting a surface of the heater where the electrode portion of the heater is provided, the sealing member being provided at a position closer to a center of the heater than the electrode portion is. The sealing member includes an engaging portion engaging with an end portion of the supporting member with respect to a widthwise direction of the heater and a cantilever contact portion contacting the surface of the heater where the electrode portion is provided.

A contacting portion of a shutter appears in front of a container opening to be at a position where the contacting portion contacts with a sealing member provided in an edge of a storage body opening of a developer storage body when the shutter is at an opening position, and is separated from the sealing member to move into a container frame when the shutter moves from the opening position to a closing position. A non-contacting portion of the shutter is provided on an upstream-side of the contacting portion in a moving direction from the opening position to the closing position and is positioned inside the frame when the shutter is at the opening position, and moves to a position where the non-contacting portion appears in front of the container opening without making contact with the sealing member when the shutter moves from the opening position to the closing position.

Developer container, process cartridge, and image forming apparatus

A fixing device includes a rotatable fixing member configured to heat and fix, onto a recording material, a toner image formed on the recording material, a restriction member configured to restrict movement of the rotatable fixing member in a generatrix direction of the rotatable fixing member, and a capture member configured to capture a component vaporized by heat. The capture member is arranged to face a curved surface portion of the rotatable fixing member and is positioned by the restriction member.

Fixing device and image forming apparatus

A sheet feeding apparatus and an image forming apparatus, which can improve sheet feeding performance at low cost without degrading usability, are provided. ProjectionsT andT are provided in abutting surfaces, which abut on lateral end of a sheet S, of a pair of lateral-end regulating portionsandprovided opposite each other. The projections regulates climbing over the lateral-end regulating portions of the sheet S when the sheet S is fed. Guide projectionsandare provided opposite each other along a cassette attaching direction in an inner wall surface of an attaching space, in which a sheet feeding cassette of an apparatus body is attached. When the sheet S climbs over the projections in feeding the sheet S, the sheet S is abutted on the guide projections to regulate upward movement of the sheet S.

Sheet feeding apparatus and image forming apparatus

A sheet conveying apparatus has a reference guide in which a reference surface that is elongated in a sheet conveying direction and abuts against an end portion of a sheet, an inclined surface which is provided upstream of the reference guide and which is inclined in a width direction intersecting with the sheet conveying direction so that an edge of the sheet is guided, the inclined surface intersecting the reference guide at an intersection, a sheet guide portion, a passage portion having an upstream area which is wider than the sheet guide portion in a vertical direction, a downstream area which is narrower than the upstream area in a vertical direction, and an inclined guide which is provided between the inclined surface and the reference surface, wherein a position of an upstream edge of the downstream area is provided between the intersection and the oblique conveying unit.

Sheet conveying apparatus with inclined surface against which the sheet abuts and image forming apparatus having same

Positioning in the width direction of a sheet is performed by a skew correcting unit which is provided on a re-conveying path for reversing the sheet and conveying it again to an image forming unit and which has a reference surface that is come into contact with a side edge of the sheet and a plurality of diagonal feed units which obliquely convey the sheet so as to be come into contact with the reference surface. The pressures in nip portions of the other diagonal feed units excluding one of the plural diagonal feed units are reduced or cancelled by a reducing/cancelling unit according to a length in the sheet conveying direction of the sheet which is conveyed.

Sheet conveying apparatus and image forming apparatus

An oblique feeding roller and a reference guide are provided on a re-conveying path for conveying a sheet in which an image has been formed on one side by an image forming unit to the image forming unit again. The sheet is obliquely fed by the oblique feeding roller. A side edge of the sheet abuts to a reference surface provided for the reference guide along a sheet conveying direction, thereby correcting the oblique motion and a positional deviation of the sheet. The reference guide is moved to a position according to a length in a width direction of the sheet which is conveyed by a movement of a cam.

An image forming apparatus in which with a guide surface that is disposed upstream of a reference guide and is oblique so as to come close to a central portion in a width direction orthogonal to a sheet conveying direction of a re-conveying path as it extends from upstream to downstream, a sheet having been conveyed with deviated on the opposite side to the central portion side in the re-conveying path from a reference surface of the reference guide, is guided while being changed its orientation to the direction of the reference guide side. Furthermore, with a guide portion disposed along the guide surface, there is formed with respect to the guide surface a space acting to flex an edge portion of the sheet when the sheet is contacted with the guide surface.

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Mishima, Japan

Fumiki Inui