Canon Kabushiki Kaisha

Nobuo Nakazawa

Satoshi Kaneko

Yasushi Miura

Hisashi Fukushima

Nobuhiko Takekoshi

Tokuharu Kaneko

Hiroaki Tsuchiya

Nobuyuki Kume

Koji Yamazaki

Toshiyuki Ehara

Masanori Miyata

Shigenori Ueda

Akimitsu Hoshi

Osamu Sugino

A fixing roller includes a conductive core member to which voltage is to be applied to an aluminum oxidation layer provided on the conductive core member and a surface conductive layer provided on the aluminum oxidation layer.

Fixing roller for improving voltage resistance and fixing apparatus

An image formation apparatus comprises an image bearing member, developing means for developing by use of toner the electrostatic image formed on the image bearing member, transfer charging means for transferring the toner image from the image bearing member to a transfer material in the transfer position, and separation means for de-electrifying the transfer material for separating the transfer material from the image bearing member. Then, after the toner image formed on the transfer material for the first time is fixed, the toner image is formed on the same transfer material for the second time. For this apparatus, modifying means is further provided for modifying the development conditions of the first toner image and the second toner image formed on the transfer material, and modifying the adhesive amount of fogging toner adhering to the image background of the toner image on the image bearing member. With the structure thus arranged, it is made possible to prevent the defective separation and re-transfer, and at the same time, to reduce the development fog as much as possible for a significant enhancement of image formation.

Image formation apparatus

An image forming apparatus for forming an image on a recording material comprising: a plurality of processing devices for forming the image; a detecter for detecting at least a quantity of state relating to a control of the processing devices; an inference computer for inferring, in accordance with the quantity of state, a quantity of control for use to control the processing devices.

Fuzzy inference image forming apparatus

An image forming apparatus for forming an image on a recording material comprising: a plurality of processing devices for forming the image; a detector for detecting at least a quantity of state relating to a control of the processing devices; a fuzzy inference computer for inferring, in accordance with the quantity of state, a quantity of control for use to control the processing devices.

An image forming apparatus utilizing an ink jet recording head and including a plurality of processing devices for forming the image; a detector which detects a quantity of a state, i.e. temperature, humidity, idle time, suspened dust, etc., related to a control of the image processing devices; and an inferrence computer which uses fuzzy logic in analizing the detected quantity of state to control the processing devices.

Image forming apparatus

An image forming apparatus includes a cleaning member which frictionally contacts magnetic particles on a magnet roller with an image bearing member in order to remove foreign matter adhered to the image bearing member, thereby preventing the deteriorating of the image quality. The magnet roller rotates slowly so that a portion thereof opposed to the image bearing member is moved in the same direction as a moving direction of the image bearing member. This prevents the toner from overflowing and scattering out of the cleaning member. Further, when non-magnetic toner is used, by providing a toner cavity on the magnet roller, the scattering of the non-magnetic toner can be prevented, whereby parts inside the apparatus are prevented from being contaminated by the toner.

Image forming apparatus having cleaning means

An image forming apparatus includes a movable image bearing member, a latent image forming device 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 device with non-magnetic toner, a transfer device for transferring an image developed by the developing device to a transfer device, a cleaning device for removing residual toner from the image bearing member after the image is transferred wherein the cleaning device includes magnetic paricle retaining device for retaining magnetic particles and a magnetic particle supplying device for supplying the magnetic particles to the magnetic particle retaining device of the cleaning device.

An electrophotographic process using a photosensitive member having an amorphous silicon photosensitive layer, includes uniformly charging the photosensitive member, and exposing the photosensitive member to information light to form an electrostatic latent image, developing the electrostatic latent image using a developing device selected from a plurality of developing devices disposed along a movement direction of the photosensitive member, wherein a movement speed of the photosensitive member is lower when a selected developing device is the one closer to the station where the uniformly charging step is performed than when another developing device is selected, whereby the time periods for a portion of the photosensitive member to move from the charging station to the developing devices is substantially constant.

Growing community of inventors

Kawasaki, Japan

Nobuo Nakazawa