Canon Kabushiki Kaisha

Yoji Tomoyuki

Kazuo Kishino

Ken Nakagawa

Hisashi Nakahara

Yusuke Nakazono

Masaaki Takahashi

Akira Kato

Hiroyuki Sakakibara

Akira Hayakawa

Koji Uchiyama

Goichi Kitadai

Yasushi Sato

Yasumasa Ohtsuka

Mahito Yoshioka

Hikaru Osada

Takahiro Uchiyama

Yoshihiro Matsuo

Akihiko Takeuchi

Shunji Nakamura

Masanobu Saito

Kimio Nakahata

Katsuhisa Matsunaka

Hideo Kawamoto

Toshio Miyamoto

Kenichi Ogawa

Yukihiro Ohzeki

Daizo Fukuzawa

Koichi Okuda

Satoru Taniguchi

Masahide Hirai

Junji Araya

Yuji Kitano

Katsuhiko Nishimura

Masahito Omata

Tatsunori Ishiyama

Takeshi Setoriyama

Shoji Umehara

Yasumasa Otsuka

Toshiyuki Miyabayashi

Osamu Soutome

Hidenobu Suzuki

Susumu Ikuma

The present invention relates to an image heating apparatus in which a nip portion is formed by a heating unit, which includes a flexible sleeve and a heater, and a pressure roller. The position of the heating unit is appropriately maintained by pressing the heating unit against the pressure roller using a pressure member so that the heating unit can contact two or more portions of a downstream side rim of a groove arranged on a frame that holds the heating unit, even when the pressure roller is rotated.

Image heating apparatus having stably positioned heating unit

A fixing roller of an image fixing apparatus has an elastic layer on a core metal and has a thermal conductive fluororubber latex layer containing a mixture of fluororubber, fluororesin and thermal conductive fillers more outer side than the elastic. An intermediate layer made of silicone rubber having higher thermal conductivity than the thermal conductive fluororubber latex layer is provided between the thermal conductive fluororubber latex layer and the elastic layer, and the intermediate layer is configured so that an elastic parameter Y(=H&#xd7;T) satisfies a relational expression:Y&#x2267;4200

Roller for fixing and image fixing apparatus using roller for fixing

A pressure roller has a metal core, an elastic layer of cured rubber composition at least containing a water-absorbing polymer containing water and a surface releasing layer laminated on an outer periphery of the metal core. A compression amount (y) of the elastic layer satisfies the following relationship: y&#x2266;0.8 (mm).

Image heating apparatus and pressure roller used for the apparatus

The image forming apparatus has an image bearing member for transferring an image from the image bearing member to a recording material, a fixing device for fixing an image onto the recording material, the fixing device having a heating member and back-up roller for forming a nip in cooperation with the heating member. In the image forming apparatus, a normal mode for a case in which the recording material is paper and a resin sheet mode for a case in which the recording material is resin, and wherein when the resin sheet mode is selected a voltage applied to said transfer member is lower than that of the case in which the normal mode is selected so that an absolute value of a front surface potential of the resin sheet becomes small.

Image forming apparatus having transfer bias control function

A heater, or an image heating apparatus including the heater includes a substrate, heat generating resistors formed at least in a cycle path on the substrate, and current supply electrodes provided at electrical ends of the heat generating resistors, wherein plural heat generating resistors are connected in parallel to at least one of the current supply electrodes. Thus there can be obtained a heater having excellent heat generating characteristics even in a compact dimension and an image heating apparatus utilizing such heater.

Heater having at least one cycle path resistor and image heating apparatus therein

Heating assembly, image-forming apparatus, and process for producing silicone rubber sponge and roller

The invention provides an image forming apparatus having sheet supply device, image forming device for forming an image on a sheet supplied by the sheet supply device, fixing device for fixing the image formed on the sheet, a sheet guide for guiding the movement of the sheet, and a control board bearing an element for controlling the image forming device, wherein the sheet guide positioned between the sheet supply device and the fixing device is provided substantially linearly in such a manner that the sheet moves in an inclined upward direction, and the control board is provided in a space under the sheet guide and at the bottom face of the apparatus.

Image forming apparatus with inclined guide for sheet material

An image fixing apparatus has a heating member, a back-up roller cooperating with the heating member to form a nip therebetween for pinching and conveying a recording material bearing an image thereon, and a controlling device for controlling a temperature of the nip. The controlling device heats the nip after a fixing process is finished and after a rotation of the back-up roller is stopped.

Image fixing device with heater control

The present invention relates to a fixing apparatus having a pair of rotary members for pinching and conveying a supporting material bearing a non-fixed toner image thereon, thereby fixing the non-fixed toner image on the supporting material and wherein a rectifier element is connected to at least one of the rotary members in a predetermined orientation, whereby the present invention prevent a toner offset that the toner on the supporting material is adhered to the rotary members.

Fixing apparatus with rectifier element

A cleaning sheet for a fixating rotational member has a tacky layer provided on at least one surface of the cleaning sheet and having tackiness to toner at least when the cleaning sheet is conveyed to the fixating rotational member.

Cleaning sheet for fixating rotational member and image forming

An image processing apparatus comprises an image data generator and a characteristic converter for converting a characteristic of the image data generated by the image data generator. The characteristic converter includes a table for converting the image data in a first mode and a second table for converting in a second mode. The first and second tables are selectively used in recording one image. Data generator for generating data to be stored in the first and second conversion tables has a reference characteristic conversion table to be used as a base in generating the data.

Image processing apparatus using conversion means

Growing community of inventors

Tokyo, Japan

Yoji Tomoyuki