Canon Kabushiki Kaisha

Atsuyoshi Abe

Tetsuya Sano

Masahiro Suzuki

Masashi Tanaka

Hiroshi Mano

Masaaki Takahashi

Hideo Nanataki

Yasumasa Ohtsuka

Daizo Fukuzawa

Daisuke Aoki

Manabu Takano

Yohji Tomoyuki

Akihiko Takeuchi

Akira Kato

Toshiaki Miyashiro

Koichi Tanigawa

Kazuhisa Kemmochi

Tomonori Shida

Akira Hayakawa

Tsutomu Miki

Satoshi Nishida

Kazuo Kishino

Takaaki Tsuruya

Minoru Hayasaki

Kenichi Ogawa

Hiroki Kisu

Kouichi Okuda

Toru Saitou

Kiyofumi Nakane

Shunji Nakamura

Keisuke Matsuo

Akira Kuroda

Michihisa Magome

Hitoshi Sato

Katsuhisa Matsunaka

Aoji Isono

Hideyuki Yano

Tatsuhiko Chiba

Michio Uchida

Isamu Takeda

Yuki Nishizawa

Hiroaki Kawakami

Takashi Soya

Keiji Komoto

Satoshi Handa

Yasuo Yoda

Takeshi Setoriyama

Yasunari Kobaru

Yuji Moriki

Hideyuki Hatakeyama

Tohru Saito

Hiroki Eguchi

Koji Uchiyama

Masatake Usui

Hidenobu Suzuki

Kiyokazu Suzuki

Tatsuro Hayakawa

Ken-ichi Ogawa

A cylindrical fixing member for use with a fixing device includes a heat generating layer and an electrode layer contacting the heat generating layer. The electrode layer is smaller in volume resistance value than the heat generating layer. The electrode layer is formed in a helical shape so that a helical axis thereof extends in a direction along a generatrix direction of the fixing member. One end and the other end of the electrode layer are electrically open.

Cylindrical fixing member, fixing device and image forming apparatus

According to embodiments, a heating member or a sliding member arranged in contact with the surface of a fusing roller is moved in an intersecting direction with the rotational direction of the fusing roller in a contact state with the heating member or the sliding member so as to prevent a scratch from being generated on the surface of the fusing roller or to repair the scratch.

Image heating apparatus and image heating rotational body to be mounted on the image heating apparatus

Disclosed is an image heating apparatus. The image heating apparatus includes a rotatable heating member for heating an image on a recording material in a nip portion, and a heating unit for heating the heating member from the outside thereof. With this structure, a warm-up time period or a first print-out time period can be reduced, and low power consumption can be accomplished. Further, satisfactory image quality can be realized with no heating (fixing) irregularity. The heating member has a low thermal conductive elastic layer, and a heat storage layer outside the low thermal conductive elastic layer to have a volume heat capacity larger than the low thermal conductive elastic layer. A heat capacity of the heat storage layer per unit surface area of a fixing member is in a range of 100 J/mK to 600 J/mK.

Image heating apparatus and rotatable heating member used for the same

An image heating apparatus for heating a toner image formed on a recording material is constituted by a roller contactable with a toner image carrying surface of the recording material; a heating member for heating the roller, the heating member contacting a surface of the roller, wherein the toner image formed on the recording material is heated in contact with the roller; and a driving mechanism for moving the heating member to a first position contacting the roller and a second position, contacting the roller different from the first position with respect to a tangential direction of the roller.

Image heating apparatus

The present invention relates to a transfer material conveying apparatus for conveying a transfer material to which an image is fixed, comprising, an image surface roller located on an imaging surface side of the transfer material and disposed on a downstream side in a conveyance direction of the transfer material of a heating member and a pressing member for fixing an image to the transfer material and a facing roller located in facing to the image surface roller and disposed on a downstream side in a conveyance direction of the transfer material of a heating member and a pressing member for fixing an image to the transfer material. The image surface roller has a length equal to or longer than an image area on the transfer material in a direction perpendicular to the transfer material conveyance direction, and wherein the facing roller is spaced from the image surface roller with a prescribed distance.

Transfer material conveying apparatus and image forming apparatus

An image heating apparatus for heating an image formed on a recording material includes a flexible movable member: a supporting member, having a sliding surface for sliding relative to the movable member, for supporting the movable member; a pressing member for forming a nip with the supporting member with the movable member therebetween; wherein the supporting member is provided adjacent the sliding surface with a projection which is projected toward the pressing member beyond the sliding surface, the projection being extended in a longitudinal direction of the supporting member, and wherein the supporting member is provided at a longitudinal end portion with a cut-away portion providing a projection height which is smaller than that of the projection or providing a portion substantially flush with the sliding surface.

Image heating apparatus with projection extending in longitudinal direction of supporting member

An image forming apparatus has image forming means for forming an unfixed toner image on a recording material, heating and fixing means for heating and fixing the unfixed toner image on the recording material, temperature sensing means for sensing the temperature of the heating and fixing means, and power controlling means for controlling power supplied to the heating and fixing means so that the heating and fixing means keeps a fixable temperature at least on fixing operation based on an output from the temperature sensing means. The power controlling means controls power supply to the heating and fixing means based on the output from the temperature sensing element during the time from receipt of a print signal by the image forming apparatus to performing a heating and fixing process on the recording material so that, in the case where the temperature of the heating and fixing means rises fast, a temperature control operation for keeping the fixable temperature should not be protracted before heating and fixing so as to control excessive rise in the temperature of the pressure member (pressure roller) and prevent a media slip.

Image forming apparatus and fixing apparatus

An image heating apparatus has a heating member and excitation coil for generating a magnetic field to induce eddy currents. A temperature detecting element detects a temperature of the heating member and electric power supply to the excitation coil is controlled to maintain a temperature detected by said temperature detecting element at a target temperature while a heating condition setting unit sets a feeding speed of the recording material and the target temperature.

Induction heating type image heating device

A laminate film showing good durability under pressure and heat application, and suitably used as a fixing film for toner image fixation, is provided. Such a laminate film is provided by forming a polyimide resin layer on a metal base layer at a controlled imidation percentage of 70-93%.

Laminate film, fixing film and image heating apparatus using same

An image heating apparatus for heating an image formed on a recording material, including a rotation member; an excitation coil for generating a magnetic field to induce an eddy current in the rotation member; a temperature detecting element for detecting a temperature of the rotation member; and a controller for controlling an electrical supply to the excitation coil so that the temperature detected by the temperature detecting element is maintained at a set temperature, wherein while the set temperature is set a stand-by temperature, the controller controls the electrical supply to the excitation coil and the rotation member is maintained in a stoppage of rotation.

Image heating apparatus using induction heating method

The present invention provides an image heating apparatus, which has a movable endless belt, a support member for supporting the belt at an inside of the belt, wherein the belt slides relative to the support member and an image on a recording material is heated with heat from the belt, a holding member for holding the belt at an inside of the belt and movable together with the belt, and a driving member opposing to the holding member via the belt and driving the belt.

Image heating apparatus with holding a driving members for belt outside nip portion

Image forming method

The present invention provides an image heating apparatus which has a supporting member, a moving member slidable with the supporting member, and a backup member forming a nip with the supporting member via the moving member, wherein a lubricant is provided between the supporting member and the moving member, and at the nip, an image on a recording material is heated by heat from the moving member, and wherein the supporting member includes a plurality of recess portions in a surface thereof adjacent to the moving member, a width of one of the plurality of recess portions in a moving direction of the moving member is smaller than a width of the nip in that direction, and the plurality of recess portions are arranged in the moving direction of the moving member, and range over the whole of the nip in the moving direction of the moving member.

Growing community of inventors

Susono, Japan

Atsuyoshi Abe