Canon Kabushiki Kaisha

Osamu Hoshino

Yasushi Murayama

Kazuyoshi Chiku

Masayuki A Suzuki

Takashi Uchida

Kohzoh Arahara

Kazuo Minoura

Yukio Sato

Isamu Shimoda

Yoshinobu Shiraiwa

Hiroyuki Miyake

Toshiya Yuasa

Ken Miyagi

Kunihiko Matsuzawa

Noboru Tohyama

Yoichi Kubota

Hideaki Mitsutake

Akihiko Takeuchi

Hiroshi Tanioka

Susumu Sugiura

Motokazu Kobayashi

Kazuo Isaka

Hiroshi Takabayashi

Shigeyoshi Onoda

Tomohiro Aoki

Hiroshi Fukumoto

Akio Yoshida

Takashi Kai

Michio Ito

Takashi Yamamoto

Hajime Katayama

Akio Ohno

Kiyoharu Tanaka

Yasushi Shioya

Masashi Suda

Toshiaki Itazawa

Yoshihiko Hirose

Kenichi Matsumoto

Yusaku Takada

Akiyoshi Torigai

Noriyoshi Iida

Toyohide Miyazaki

Haruo Tsunoi

Yoshitomo Goshima

Kazuo Kawakubo

Norihiko Koizumi

Kazunori Kanekura

Takao Miyamoto

Joji Amitani

A support structure for a body to be supported, such as a display unit, includes a support base, a stand support held upright by the support base, and an attachment member for attaching a body to be supported thereto laterally held by the stand support. The stand support and the attachment member may be coupled to each other in an electrically insulated state. The body to be supported may be mounted on the attachment member via a tilting mechanism for holding the support body at an arbitrarily vertically tilted angle from a home position.

Support structure and display apparatus equipped with the support structure

A scanning optical apparatus comprises a light source unit, scanning means for deflecting a beam from said light source unit and scanning a scanning surface with the beam, means for detecting the beam scanned on said scanning surface and control means for controlling the beam scanned on said scanning surface in a direction perpendicular to said scanning surface on the basis of a magnitude and a change as a function of time of a signal output from said detecting means.

Scanning optical apparatus having beam scan controller

A scanning optical device for scanning a material to be scanned with a beam emitted from a light source thereof, has a storage device for storing information relating to the quantity of deviation of a scanning optical system. The convergent position of the beams is adjustable in the direction of the optical axis by at least partially controlling the elements of the scanning optical system in accordance with information relating the quantity of deviation supplied by the storage device. The quantity of deviation such as curvature of field of the scanning optical system can be compensated by a simple structure. Therefore, a recording device or reading device employing the scanning optical system exhibiting high resolution, low cost and a capability of preventing deterioration in the gradation expression can be realized.

Scanning optical device with aberration compensation feature

A scanning optical equipment provided with the means to detect scanning beam spot at more than two points of the scanned surface and the means to enable direct observation of the state of focussing of the beam spot, thus enabling extremely precise control of the state of focussing and forming an extremely high density image which could not be obtained by the conventional methods.

Scanning optical equipment

An image forming apparatus and method for forming an image includes a recording material which changes its adhesiveness in response to the polarity of the voltage applied thereto. Such a recording material can include negatively or positively changeable or inorganic particles, gas-generating solvents, a substance having a gel or sol state, and a dissociative electrolyte. The recording material is positioned between a pair of electrodes. At least one of the electrodes includes an electroconductive member and a pattern comprising an insulating material disposed on the electroconductive member. A voltage is then applied between the pair of electrodes to attach the recording material to one of the electrodes. Also provided is a pressure applicator for transferring to a transfer-receiving medium the recording material attached to the electrode.

Image forming apparatus and method for applying an adhesive recording

An image forming apparatus comprises: an electroconductive substrate; an electroconductive member disposed opposite to the electroconductive substrate; a plate-forming unit for forming an insulating pattern on the electroconductive substrate; a supplier for providing a recording material between the electroconductive substrate and the electroconductive member, the recording material being capable of changing its adhesiveness corresponding to the polarity of a voltage applied thereto; and a voltage source for applying a voltage between the electroconductive substrate and the electroconductive member.

Image forming apparatus and image forming method using a negative image

A color image forming apparatus that can detachably receive a plurality of process units into associated ones of a plurality of color image forming stations. Each of such detachable process units effects imaging in one of a plurality of different colors. The units are substantially identical in structure, configuration, and dimension, but differ with respect to indexing elements which allow each unit to be set only at its proper color image forming station in the image forming apparatus.

Process unit and a multi-color image forming apparatus using the same

An image forming method and apparatus is disclosed an ink capable of changing its adhesiveness corresponding to the polarity of a voltage applied thereto is provided. The ink is used for image formation by means of an image-forming apparatus with at least a pair of electroconductive members. The residual ink left between the pair of electroconductive members is removed by; and applying a voltage to the residual ink so as to reduce the adhesiveness of the ink disposed on one of the pair of electroconductive members, thereby to remove the ink from the electroconductive member and transfer it to another electroconductive member.

Image forming method and apparatus utilizing a voltage to change the

An image forming apparatus in which a recording material having an unfixed image formed thereon by an image forming device is conveyed to a fixing device having a pair of rotatable members by a conveyor and the recording material is nipped and conveyed by the pair of rotatable members so that the unfixed image is fixed on the recording material. The pair of rotatable members is selectively rotatable at a first peripheral speed lower than the speed at which the conveyor conveys the recording material and a second peripheral speed higher than the first peripheral speed. The pair of rotatable members are rotated at the first peripheral speed to convey the recording material and form a loop of recording material rearwardly of the pair of rotatable members with respect to the direction of conveyance of the recording material, whereafter the peripheral speed of the pair of rotatable members is changed over from the first peripheral speed to the second peripheral speed to suppress the growth of the loop of the recording material.

Image forming apparatus with recording material loop forming and control

An image forming apparatus for forming superimposed images includes a plurality of image forming devices each for forming a different image and a registration mark, corresponding to the position of the associated image, on an image transferring medium. The registration mark is formed on a transparent part of the medium and is illuminated from below. A detector above the medium detects the position of the shadow of the registration mark for each image and the result of detection is used to adjust the position of at least one image forming device to produce proper registration between the images formed by the respective image forming devices.

Apparatus for forming superimposed images

There is provided a multiimage forming apparatus for forming image data onto photo sensitive drums by an electrophotographic system. This apparatus comprises: an image forming circuit to form different images onto the photo sensitive drums; a transfer device to transfer the images on the drums onto the same transfer paper; a conveying belt to convey the transfer paper; a control circuit to control the image forming circuit so as to form registration marks to match the positions of the images onto the drums; CCD detectors to detect the recording positions of the marks; and a correcting circuit to correct at least two of the positional direction in the conveying direction of the belt, the positional deviation in the direction perpendicular to the belt conveying direction, the magnification of the image, and the inclination of the image on the basis of the detection outputs of the detectors. With this apparatus, the positional deviations of the images which occur during the image formation can be accurately corrected, so that the images can be accurately formed on the transfer paper by reading and matching the position matching registration marks.

Multiimage forming apparatus

A data processing system, in which image data is transmitted in units of predetermined length, e.g., a predetermined number of lines, and code data comprising a character or the like, is transmitted in units each of which contains the code data corresponding to the predetermined unit of the image data. The image and the code data are preferably transmitted on a common transmission channel, and can be separated upon reception for separate processing.

Data processing system with common channel for image and character data

A superimposed image forming apparatus, includes a plurality of electrophotographic photosensitive drums, toner image forming devices, provided for the respective photosensitive drums, for forming toner images on the respective photosensitive drums, image transfer devices, provided for the respective photosensitive drums, for transferring the toner images formed on the photosensitive drums onto a transfer material at respective image transfer stations, conveying devices for conveying the transfer material sequentially through the respective image transfer stations, and adjusting mechanisms for adjusting inclinations of rotational axes of the photosensitive drums. Thus, image inclination of a resultant image can be corrected by adjusting the inclination of the axis of the drum by an amount which is a half of the image inclination.

Superimposed image forming apparatus

An image forming apparatus includes a movable image bearing member; a driver for driving the image bearing member; elements for forming a latent image on the image bearing member; a developing device for developing the latent image formed on the image bearing member by the latent image forming elements; and a transferring device for transferring a developed image developed by the developing device onto an image receptor. The time interval required for the image bearing member to move from a latent image forming position, where the latent image forming elements form the latent image on the image bearing member, to a transfer position, where the transferring device transfers the developed image onto the image receptor, is an integer multiple of a period of the drive non-uniformity inherent in the driver.

Image forming apparatus

A toner supplying system for use in combination with a developing device (100) of the type having a conveyor means (300) carrying a plurality of developing units (101) such as to bring the desired developing unit to the developing position for the development of a latent image on an image carrying member (1). The toner supplying system comprises a hopper (201) disposed outside the developing device, a shaft (310) provided in the toner conveyor means, a toner transportation means (202) for transporting the toner from the hopper to the shaft, and a toner passage means (310, 350) through which the toner is supplied from the shaft to respective developing units. The toner passage means includes annular chambers (351) formed between the hollow shaft (310) and an intermediate pipe (350). The annular chambers are separated axially by partition sealing means (354). Toner passage means (225, 450), switchable between open and shut-off states and adapted to take the open state only when their associated developing unit is in a toner supplying position, are also provided. The system further comprises a toner density detecting means (50) for detecting the toner density in the developing agent on the developing unit under development. The toner density detecting means produces, when the detected toner density is too low, a signal for bringing the developing unit to the toner supplying position after completion of the development of the final color on a copying paper under developing operation.

Color image forming apparatus

Growing community of inventors

Ebina, Japan

Osamu Hoshino