Canon Kabushiki Kaisha

Yujiro Ando

Katsunobu Ohara

Keiji Tanaka

Haruo Fujii

Inao Moriyama

Toshihiko Ochiai

Yutaka Inaba

Yukimasa Shinohara

Shinjiro Okada

Shuji Murakawa

Hiroshi Tanaka

Junichiro Kanbe

Takashi Saito

Tetsuya Kobayashi

Shuzo Kaneko

Shunichi Ishihara

Osamu Taniguchi

Toshio Honma

Tohru Takahashi

Toshiaki Miyashiro

Kimio Nakahata

Nagao Hosono

Shigeki Kondo

Toshirou Kasamura

Hiroki Kisu

Katsushi Furuichi

Takao Aoki

Masaaki Matsushima

Eihiro Sakaki

Fumihiro Ueno

Hidetoshi Tanaka

Katsumi Murakami

Shinkichi Takahashi

Hakaru Muto

Nobutoshi Yoshida

Syusei Tsukada

Kazuki Tanaka

Masharu Ohkubo

Fumihiko Arishima

Syuzi Murakawa

An image forming apparatus is provided, with which it is possible to reduce the overall size of an apparatus. The image forming apparatus includes an image bearing member including a plurality of switching elements that are arranged in a moving direction and a generatrix direction of the image bearing member, and a latent image forming unit for forming a latent image on the image bearing member, the latent image forming unit including a voltage generating unit for generating a voltage in each switching element in accordance with an image signal.

Image forming apparatus with switching elements

The present invention provides an image forming apparatus having, an image bearing member; an image forming device for forming an image on the image bearing member; a transfer sheet bearing device for bearing and conveying a transfer sheet, to which a first voltage is applied for transferring the image formed on the image bearing member onto the transfer sheet born by the transfer sheet bearing device; and a discharging device for causing the discharge in the transfer sheet when the transfer sheet is separated from the transfer sheet bearing device, to which a second voltage having the same polarity as that of the first voltage and having a value equal to 80%-120% of the first voltage is applied.

Image forming apparatus with transfer sheet bearing means

An image forming apparatus includes recording electrodes electrically isolated from each other; a recording medium movable relative to the recording electrodes; developer supplier for supplying a conductive developer into between the recording electrodes and the recording medium; developer remover contactable to the recording medium to remove the developer from the recording medium; humidity detector for detecting an ambient humidity; and a bias applying device for applying a different bias voltage to the developer remover in accordance with an output of the humidity detector.

Image forming apparatus

The cleaning device for removing the toner image formed by conductive and magnetic toner from the recording medium. The cleaning device includes a rubbing member made of an electrically conductive brush of soft material or a conductive resin blade made of soft material to clean the recording medium. The cleaning device is disposed upstream of the recording position. Damage of the recording material by cleaning is prevented according to the present invention.

Cleaning device for conductive magnetic toner and image recording

An image forming apparatus for forming an image by applying a toner on a recording medium by means of an electrostatic force has a belt-like recording medium comprising a laminated layer region. The laminated layer region includes (1) a conductive layer, (2) a surface insulating layer disposed on said conductive layer and having a conductive-layer region in which a portion of the conductive layer is exposed from the surface insulating layer, and (3) a protective layer comprising conductive particles dispersed in resin provided on a surface of the exposed conductive-layer region. Support structure is provided for stretching the belt-like recording medium. A driving source is also included for driving the belt-like recording medium. A conductive contact is provided for rubbing the exposed conductive-layer region, and a wiring member is provided for connecting the conductive contact to a biasing source.

Image forming apparatus including a belt-like recording medium having an

A recording electrode assembly which is relatively moved with respect to a recording medium, for depositing onto the recording medium electrically conductive and magnetic toner magnetically conveyed, the assembly includes an array of recording electrodes, electrically isolated from each other, adapted to be supplied with an electric voltage representing information to be recorded, wherein the array is adapted to extend transversely with a direction of the relative movement of the recording material; a supporting member for supporting the array of the recording electrodes; and a conductive member, electrically isolated from the recording electrodes, for providing a surface member at an upstream of the recording electrodes with respect to a direction of movement of the toner magnetically conveyed.

Electrode assembly and image recording apparatus using same

A method of development includes providing a mixture of non-magnetic developer particles and magnetic particles in a developer supply container, carrying the mixture on an insulating surface of an endlessly movable developer carrying member and confining the magnetic particles within the developer supply container by cooperation of a magnetic pole of a fixed magnetic field generator and a magnetic particle confining member. The method also includes providing an electrode opposed to, and extending in a longitudinal direction of, the carrying member, applying a developer application signal between the electrode and the developer carrying member to apply the developer particles only to such an area as corresponds to application of the developer application signal, and developing a latent image on a latent image bearing member with the thus applied developer particles.

Developing method and apparatus for a photocopier

A recording technique for causing a magnetic toner to pass through needle-like recording electrodes by a magnetic force and forming a toner image on a recording medium by a signal voltage applied to each recording electrode uses an arrangement to allow smooth flow of the toner near the recording electrodes; namely openings are formed in a wiring member along the recording electrodes, and the toner passes through the openings.

Recording head assembly using magnetic toner and image forming apparatus

An image-forming apparatus, comprising: a liquid crystal cell comprising an electroconductive member, an electric charge-accepting member, and a ferroelectric liquid crystal interposed therebetween; charging means for imparting an electric charge to the electric charge-accepting member sufficient to form an electric field exceeding the threshold voltage of the ferroelectric liquid crystal; and a multi-color optical filter disposed in the neighborhood of the electroconductive member and comprising a plurality of filter elements of which adjacent ones have mutually different spectral characteristics.

Color image forming apparatus comprising ferroelectric smectic liquid

A liquid crystal, particularly a ferroelectric liquid crystal, is interposed between an electroconductive member and an electric charge accepting member to form a liquid crystal device. In the first step of image formation, a uniform polarity of charge is imparted to the entirety or a part of the electric charge accepting member whereby the liquid crystal is uniformly oriented to its first stable state under a uniform electric field thus formed therethrough. In the second step, the reverse polarity of charges are given imagewise to the charge accepting member, whereby the liquid crystal is reoriented imagewise to the second stable state to form an image.

Image forming method and apparatus therefor

An ion generating device includes a plurality of first electrodes extending in a first direction; a plurality of second electrodes extending in the second direction which is different from the first direction, to constitute a matrix; a third electrode so disposed that the second electrodes lie between the first electrodes and the third electrode, the third electrode having apertures corresponding to the matrix; a first dielectric member disposed between the first electrodes and the second electrodes; a second dielectric member disposed between the second electrodes and third electrode, the second dielectric member having a plurality of apertures corresponding to the matrix, which apertures each have a cross-sectional area generally increasing toward the third electrode. A method of manufacturing the same including the steps of providing an assembly constituted by the first electrodes, the second electrodes and the first dielectric member interposed therebetween; bonding a dielectric sheet to the second electrodes and bonding a conductive sheet to the dielectric sheet; forming apertures corresponding to the matrix in the conductive sheet to form the third electrode; and etching the dielectric sheet with the conductive sheet having the apertures functioning as a resist to form apertures in the dielectric sheet to provide the second dielectric member.

Ion generating device and method of manufacturing same

Ion generating device includes plural first electrodes extending in a first direction; plural second electrodes extending in the second direction to constitute a matrix; a third electrode so disposed that the second electrodes lie between the first electrodes and the third electrode, the third electrode having apertures corresponding to the matrix; a first dielectric member disposed between the first electrodes and the second electrodes; a second dielectric member disposed between the second electrodes and third electrode and having plural apertures corresponding to the matrix, which apertures each have a cross-sectional area generally decreasing toward the third electrode. A method of manufacturing the same includes the steps of providing an assembly constituted by the first electrodes, the second electrodes and the first dielectric member interposed therebetween; bonding a photosensitive sheet to the second electrodes and bonding a conductive sheet to the photosensitive sheet; forming apertures corresponding to the matrix in the conductive sheet; and exposing the photosensitive sheet with the conductive sheet having the apertures functioning as mask and then removing the exposed portions to form apertures in the photosensitive sheet to provide the second dielectric member.

A liquid crystal cell having a pair of substrates disposed with a gap therebetween and a liquid crystal injected through a liquid crystal injection port and enclosed in the gap between the substrates. The liquid crystal cell has spacer members disposed on at least one of the substrates, a liquid crystal layer region, the thickness of which is regulated by the spacer members, and a reduced pressure space communicating with the liquid crystal layer region.

Liquid crystal device having reduced-pressure region in communication

An electrostatic latent image is formed on a rotatable latent image bearing member and is developed with a developer into a visualized image on the latent image bearing member. The visualized image is transferred by pressure to a rotatable visualized image bearing member. Those steps are repeated with different color developers to form on the same visualized image bearing member a multi-color image which corresponds to one final image to be recorded. The latent image bearing member and the visualized image bearing member are cooperative to form a nip therebetween, through which a recording material is passed so that the multi-color image is transferred all at once to a recording material. The multi-color image may be a full-color or pictorial image or a combination of monochromatic images of different colors.

Multicolor image recording method and device utilizing a single image

An electrophotographic process of this invention is achieved by subjecting a photosensitive screen to a matched performance of voltage applications and image irradiation to form a primary electrostatic latent image for modulating the flow of corona ions to enable a secondary electrostatic latent image on a recording member disposed in close proximity to the screen bearing the primary electrostatic latent image. The screen is made of a conductive member as the basic element for the screen, a photoconductive member covering the substantial part of the conductive member, and a surface insulating member also covering the substantial part of the conductive member and the photoconductive member, in which the conductive member is partly exposed at one surface side of the screen, or it is entirely covered by the surface insulating member with another conductive member to be exposed being provided on said insulating member, and the coating thicknesses of the photoconductive and surface insulating members are thicker at the portion opposite to the surface part of the conductive member to be exposed.

Growing community of inventors

Yokohama, Japan

Yujiro Ando