Canon Kabushiki Kaisha

Nippon Oil Company

Wataru Uchida

Tomooku Koyama

Ken Murooka

Jun Agata

Daisuke Takamura

Yohei Suzuki

Yasuhiko Fuse

Jun Asami

Taisuke Minagawa

Takeshi Niimura

Masatoshi Yoshida

Ryo Iwasawa

Satoru Izawa

Hiroyuki Yamazaki

Satoru Taniguchi

Takahiro Uchiyama

Toshiya Kaino

Toshifumi Kitamura

Taro Ishifune

Kazuo Matsuura

Masayoshi Fukatsu

Mitsuhiro Ohta

Toshiaki Miyashiro

Mituji Miyoshi

Koji Nihonyanagi

Yoshio Tajima

Tomoyuki Araki

Takeichi Shiraishi

Yusuke Niikawa

Atsuyuki Yuzawa

Mitsuhiro Ito

Keigo Akiya

Naoyuki Maeda

Shoji Sugita

Kiyoshi Kawabe

Norio Furuya

Yoshiharu Iwasaki

Takeshi Horioka

An image forming apparatus includes: a fixing portion for fixing an image formed on a recording material; and a guide member for guiding the recording material. The guide member is provided at an entrance to the fixing portion and at an end portion with respect to a direction perpendicular to a feeding direction of the recording material The guide member is moved when the guide member is pushed by the recording material.

Image forming apparatus

An image forming apparatus includes a fixing portion for fixing an image formed on a recording material, and a guide member for guiding the recording material, wherein the guide member is provided at an entrance to the fixing portion and at an end portion with respect to a direction perpendicular to a feeding direction of the recording material. The fixing portion includes a cylindrical belt and a roller contacting an outer surface of the belt for forming a fixing nip through which the recording material is to be passed, wherein the roller has a shape such that a diameter thereof is increased with a distance thereof toward the end portion with respect to the direction perpendicular to the feeding direction, and the guide member is moved when the guide member is pushed by the recording material.

An image forming apparatus includes: a fixing portion for fixing an image formed on a recording material; and a guide member for guiding the recording material. The guide member is provided at an entrance to the fixing portion and at an end portion with respect to a direction perpendicular to a feeding direction of the recording material. The guide member is moved when the guide member is pushed by the recording material.

Image forming apparatus with guide member movable with repect to direction perpendiclar to recording material surface

An image forming apparatus that forms a toner image on a recording medium includes an image forming unit that forms an unfixed toner image on a recording medium; a fixing unit that heats the recording medium bearing the unfixed toner image and fixes the unfixed toner image onto the recording medium at a nip portion; a heating member and a pressurizing member that touches the heating member and forms the nip portion therebetween; a first blower that blows air to a non-sheet-passing area of a small-size recording medium in the heating member; and a second blower that blows air to a non-sheet-passing area of a small-size recording medium in the pressurizing member. Upon the temperature of the non-sheet-passing area of the heating member exceeding a threshold temperature, the first blower blows without the second blower blowing, then the two blowers start blowing together.

Fixing device having a perforated duct

An electrophotographic image forming apparatus includes a process cartridge detachably mountable to a main assembly, a developing cartridge, and a cartridge supporting member movable between an inside position in which the pair of the process cartridge and the developing cartridge are located at an image forming position and an outside position in which the process cartridge and the developing cartridge are mountable and demountable. A first portion-to-be-pressed is provided on the process cartridge, a main assembly side process cartridge urging member is provided in the main assembly for pressing the first portion-to-be-pressed when the cartridge supporting member is in the inside position, and a second portion-to-be-pressed is provided on the developing cartridge. In addition, a main assembly side developing cartridge urging member is provided for pressing the second portion-to-be-pressed when the cartridge supporting member is located at the inside position.

Electrophotographic image forming apparatus, process cartridge and developing cartridge

An image forming apparatus that forms a toner image on a recording medium includes an image forming unit that forms an unfixed toner image on a recording medium; a fixing unit that heats the recording medium bearing the unfixed toner image and fixes the unfixed toner image onto the recording medium at a nip portion; a heating member and a pressurizing member that touches the heating member and forms the nip portion therebetween; a blower having a fan and duct, that blows air to a non-sheet-passing area of a small-size recording medium in the heating member; wherein the duct includes a second opening through which airflow from the fan is directed to the conveyance roller pair, and wherein the second opening of the duct is configured not to overlap with the non-sheet-passing area of the heating member in a longitudinal direction of the heating member.

Image forming apparatus having fixing device and blower for the fixing device

Image forming apparatus with plurality of ribs on guide to fixing nip

To notify a residual life of a replaceable part at appropriate time on image quality required by the user. An image forming apparatus including: a replaceable part used for image formation; an output unit configured to output information indicating that a usage amount has reached a threshold; an input unit configured to input information; and a control unit configured to change the threshold in accordance with information about image quality input by the input unit.

Image forming apparatus and image forming system

An image forming apparatus includes a main assembly, a supporting member capable of supporting a plurality of developing rollers and a plurality of photosensitive drums, and a plurality of developing cartridges each having the developing roller. An urging member urges each developing cartridge to urge the developing roller toward the photosensitive drum, and a spacing member spaces the developing roller and the photosensitive drum from each other. The developing cartridges each include an upper surface facing upward when mounted to the supporting member and two recessed portions provided at the upper surface, each extending in a longitudinal direction of the developing roller, wherein the two recessed portions are disposed along an arrangement direction of the developing cartridges and constitute a gripping portion.

An image forming apparatus has a fixing unit including a first fixing member and a second fixing member opposing to the first fixing member, a curl correcting unit including a first curl correcting member and a second curl correcting member opposing to the first curl correcting member, a first changing member rotatable about a first rotation center, the first changing member changing a pressure to the sheet by the first fixing member and the second fixing member, and a second changing member rotatable about the first rotation center, the second changing member changing a pressure to the sheet by the first curl correcting member and the second curl correcting member.

Image forming apparatus with curl correcting unit

An image forming apparatus includes a detection unit that detects information about a used amount of a unit, and a control unit that outputs information indicating that the unit is required to be replaced when the information about the detected used amount reaches a first predetermined threshold value, wherein the control unit changes the threshold value to a second threshold value according to information about the used amount when the unit is replaced.

Image forming apparatus and image forming system including a detection unit that detects information about a used amount of unit

An image forming apparatus includes a fixing unit that fixes an image, an obtaining unit that obtains information regarding conveying time taken to convey a recording material, a detection unit that detects information regarding an environment, and a control unit configured to determine, based on the information regarding the conveying time and the information regarding the environment, a timing at which the fixing unit is replaced.

Image forming apparatus that detects deterioration of a component and determines life of the component

Growing community of inventors

Yokohama, Japan

Wataru Uchida