Canon Kabushiki Kaisha

Toshio Yoshimoto

Kenjiro Hori

Yasuhiro Nakata

Hiroshi Hashimoto

Kaoru Seto

Takashi Nakahara

Yasumasa Nashida

Shunichi Masuda

Yukihide Ushio

Satoshi Akiyama

Yoshimi Kuramochi

Takashi Soya

Nobukazu Adachi

Kiyoshi Kanaiwa

Yuji Takahashi

Makoto Takeuchi

Masahiro Goto

Hiroshi Mano

Shunji Nakamura

Hiroshi Sasame

Akira Kuroda

Masaki Ojima

Takashi Kawana

Masaharu Ohkubo

Hideyuki Yano

Junichi Kato

Yasumasa Ohtsuka

Koichi Hiroshima

Tetsuo Saito

Atsushi Kashihara

Daizo Fukuzawa

Shinichi Tsukida

Seiji Uchiyama

Takahiro Inoue

Michio Ito

Akio Noguchi

Masanobu Kanoto

Hiromichi Yamada

Jun Saito

Koichi Suwa

Yohji Tomoyuki

Kouichi Okuda

Takeshi Sugita

Akira Yuza

Hiroshi Atobe

Hidenobu Suzuki

Tadashi Yagi

Tomoko Nanbu

A fixing heater includes a ceramic substrate; a heat generating resistor provided on the ceramic substrate to extend in a longitudinal axis of the ceramic substrate; a temperature detecting element for detecting a temperature of the ceramic substrate; and an electrically conductive member provided on the ceramic substrate to extend in the longitudinal axis of the ceramic substrate.

Fixing heater comprising electrically conductive member extending in the longitudinal axis of substrate

A fixing heater includes a dielectric substrate, a resistor formed on the substrate and Laser-trimmed in a current flow direction, a slidable film, and backup member forming a nip with the film. The trimmed portion lies outside the nip.

Fixing heater and fixing apparatus with trimmed resistive member

A data processing apparatus includes an image data generating section for generating image data, and an interpolation image data forming section for forming and outputting interpolation image data based on the image data generated by the image data generating section. The interpolation image data forming section includes a memory for storing the image data generated by the image data generating section.

Data processing apparatus

An image heating apparatus includes a heater; temperature detector for detecting a temperature of the heater; electric power supply controller for controlling electric power supply to the heater during image heating, so that the temperature detector detects a predetermined set temperature; and a temperature determining device for determining the set temperature on the basis of a change of the temperature detected by the temperature detector when electric power supply to the heater is stopped.

Image heating apparatus changing set temperature in accordance with

An image forming apparatus comprises a data receiver for receiving encoded character or graphic information in the unit of a page from the outside; a pixel converter for converting the encoded character or graphic information into pixel information; an image forming device for forming an image on a recording medium based on the pixel information; and a feeder for feeding the recording medium to said image forming device. In the apparatus, the feeder is adapted to feed the recording medium to a predetermined position prior to the completion of pixel conversion of a page by the pixel converter.

Image forming apparatus with feeder control based on pixel conversion

An image heating apparatus includes a heater; a heat transmitting member for transmitting the heat from the heater to an unfixed toner image while moving in contact with a recording material bearing the unfixed image; a pressure roller for forming a nip between the heat transmitting member and itself; wherein the heat transmitting member has a conductive surface; the pressure roller has a conductive core member; and wherein the image heating apparatus further contains a rotating conductive member on the conductive core material in contact with the conductive surface.

Image heating apparatus comprising a grounded film

An image forming apparatus includes a fixing heater driven by a voltage supplied from a commercial power supply, a transformer for transforming the voltage supplied from the commercial power supply into a predetermined voltage, and supplying the predetermined voltage to a load in the apparatus, and a controller for detecting the voltage transformed by the transformer, and controlling energization to the fixing heater.

Image forming apparatus coping with power supply voltage drift

An image forming apparatus, which is capable of obtaining high quality images, having a recording member on which a latent image is formed, a charging voltage generating portion which is positioned in contact with the recording member for the purpose of applying charging voltage containing an AC component to the recording member and from which said charging voltage is supplied, an application device for applying an AC component having a frequency, which is different from that of the AC component of the charging voltage, to the recording member, an electric current value control circuit for detecting an output AC value of the charging voltage generating portion so as to make the output AC value to be a predetermined value, and an erroneous operation preventing circuit for preventing an erroneous operation of the electric current value control circuit taken place due to an introduction of the AC component applied by the application device into the charging voltage generating portion.

Image forming apparatus having a high voltage power source for a contact

A recording apparatus comprises a recording unit for recording information onto a recording medium, a feeder for feeding the recording medium to the recording unit, a detector between the recording unit and the feeder for detecting the recording medium being fed, and a controller for inhibiting the recording operation of the recording unit when the detector detects the recording medium before the elapse of a predetermined period of time from the start of the feeding operation of the feeder.

Image forming apparatus

A heating apparatus includes a heat rotary member, a heater arranged in the heat rotary member along a rotation center line thereof and having a low heat-conductive base member at each end, and a holder member for holding at least one of the base members. One base member has an outer configuration larger than that of the other base member. In addition, the heater can be removed from the heat rotary member along the rotation center line without removing the holder member.

Heating apparatus and heater

There is disclosed a sheet feeder for multiple image recording on one or both sides of a sheet. A first sheet feeding mechanism feeds the sheets to a recording station, while a second sheet feeding mechanism refeeds the recorded sheet for second recording, and a control unit regulates the interval of sheet feeding according to the state of the second feeding mechanism, in order to achieve efficient sheet feeding.

Recording apparatus capable of multiple recording on one or both sides

A movable image bearing member is provided with marks for detecting a moving speed of the image bearing member. A sensor detects the speed of movement of the marks. The signal as a result of the detection is compared with a reference signal to determine a phase difference therebetween. A driving motor for driving the image bearing member is controlled to remove the phase difference. Thus, the actual speed of the image bearing member is directly detected, and the speed is controlled so that the moving speed of the periphery of the image bearing member concerned with the image formation is accurately controlled.

Image forming apparatus comprising an image bearing member driven at a

This invention relates to a sheet loading device for causing sheets put out one after another from a sheet output apparatus such as a laser beam printer or a copying apparatus onto a sheet receiving member to be loaded in orderly, mutually superposed relationship without being deviated from one another. The sheet loading device is provided with a sheet receiving member for supporting thereon discharged sheets in mutually superposed relationship, a sheet loading positioning member, gathering device for frictionally contacting the upper surface of the sheets supported on the sheet receiving member and gathering the sheets in an oblique direction, and a support member free to move and position and supporting the gathering device and the positioning member, and is characterized in that the support member is moved in accordance with the size of the sheets put out onto the sheet receiving member to thereby position the gathering device and the positioning member mounted on the support member at positions corresponding to and matching the size of the sheets. The sheet loading device is also characterized in that during sheet loading operation, the sheet receiving member cannot be placed out of the device and the sheet receiving member cannot be inserted into the device unless it is properly prepared.

Sheet loading device

A laser beam printer includes: a recording medium for forming an image; a scanning unit for scanning a beam modulated by an image signal on the recording medium; a beam detector for detecting the position of the beam scanned by the scanning unit and outputting a synchro signal which defines the record start position on the recording medium; a sheet position detector for detecting the position, in the direction of scanning the beam, of a sheet to which the image formed on the recording medium is transferred; and a controller for controlling the output timing of the synchro signal in accordance with the position of a sheet detected by the sheet position detector.

Laser beam printer

Growing community of inventors

Yokohama, Japan

Toshio Yoshimoto