Canon Kabushiki Kaisha

Michiro Koike

Atsushi Kubota

Akiyoshi Kimura

Tatsuya Shiratori

Masashi Ohashi

Nobukazu Sasaki

Takashi Ozawa

Yasuyoshi Yamamoto

Toshirou Kasamura

Toshihiko Kusumoto

Takuya Hatakeyama

Yuji Yamanaka

Atsushi Takeda

Shinichi Sasaki

Hiroshi Ogawa

Noriyoshi Ueda

Tadayuki Kitajima

Shinnosuke Taniishi

Hitoshi Fujimoto

Toru Katsumi

Ken Tanabe

Hidetoshi Tanaka

Kenichi Manabe

Yoshimitsu Nakane

Masaki Nakaoka

Naoki Okuda

Hironobu Saito

Yasunori Maeda

Toshiro Kasamura

An image forming apparatus is controlled so that, in a standby state before an image forming part becomes able to perform image forming, documents are successively conveyed to a predetermined read position on a platen glass by a document feeder and images are read from all the documents, and so that, at the time of document image reading in the standby state, operating noise from the document feeder is reduced.

Image forming apparatus

An automatic original document conveying apparatus conveys a placed original document to a prescribed position and delivers the original document. The automatic original document conveying apparatus includes a resin frame, an original document feeding unit for sequentially feeding an original placed document, an original document delivering unit for delivering the fed original document and a metal support plate thereof. The metal support plate securely connects in a united body the resin frame, the original document feeding unit and the original document delivering unit so as to maintain respective relative assembled positions of the units.

Automatic original document conveying apparatus and image forming apparatus

A developing agent filtering apparatus includes a filtering arrangement for filtering magnetic toner from the mixture of the magnetic toner and foreign matter. The filtering arrangement includes a pair of magnetic field generating members, and a filter for regulating a shifting movement of the foreign matter from one of the pair of magnetic field generating members to the other; and a switch for changing the configuration of a magnetic field generated by the pair of magnetic field generating members. The switch switches a relative position between the pair of magnetic field generating members between a first position where opposite magnetic polarities of the pair of magnetic field generating members are opposed to each other and a second position different from the first position.

Toner filter arrangement having movable magnetic cores

A sheet supplying apparatus capable of supplying sheets in a circulating manner, includes a sheet resting device on which the sheets rest, a sheet supplier for supplying the sheets rested on the sheet resting device, a trail and regulating member provided in correspondence to a trail position of the sheet and protruded from a sheet resting surface of the sheet resting device, and an urger for urging the sheets by abutting against the trail end of the sheet discharged on the sheet resting means through a sheet discharge opening to shift the sheet so that the trail end thereof rides over the trail end regulating member.

Sheet supplying apparatus and image reading apparatus

The present invention is provided as a sheet feeding apparatus comprising a friction separating/feeding means for separating and feeding a sheet by making use of frictional force, an air separating/feeding means for separating and feeding a sheet by making use of air and a selecting means for selecting either one of the friction separating/feeding means and the air separating/feeding means and for making the selected means separate and feed the sheet.

Sheet feeding apparatus, and image reading apparatus and image forming

Air injection nozzles are provided for injecting air to both the leading end and the side ends of the sheets loaded on a sheet tray. Since air is injected from both nozzles, even for large-size sheets, the sheets can securely be separated by injecting air over the whole region between a sheet to be conveyed and other sheets.

Sheet feeding device with air injectors for separating sheets

A separating apparatus for separating residual matter removed from an image bearing member into developer and other foreign matter comprises a first unit to which residual matter removed from the image bearing member is conveyed, a mesh member for allowing only developer to pass among the residual matter, and a second unit to which developer is conveyed through the mesh member. The first and second units are separable from each other with the mesh member intervening therebetween. The apparatus also may include a vibration applying device for applying vibration to the mesh, a convey device for conveying residual matter to the first unit, and a discharging device for discharging developer from the second unit. The apparatus further may include a first magnetic force generating device in the first unit and a second magnetic force generating device in the second unit.

Separating apparatus including mesh device for separating recovered

A developing agent reproducing apparatus, including a recovery device for recovering; a developing agent from a mixture of the developing agent and foreign substances, the recovery device having an attracting member for attracting the developing agent and a filter for preventing substances other than the developing agent of the mixture from passing therethrough. The filter is disposed in a region in which the developing agent is moved by the attracting member and the attracting member is disposed upstream of the filter in a gravity working direction.

Developing agent recovery apparatus and image forming apparatus using

An image forming apparatus having a carriage carrying plural developing unit is movable along a rectilinear predetermined path to provide a desired developing unit adjacent a photosensitive member of the image forming apparatus. The developing unit is moved to a developing position by moving the unit in a direction perpendicular to the direction of the carriage movement using the moving force used for moving the carriage.

Color image forming apparatus with developing unit moving means

An image forming apparatus is provided with a device for forming an electrostatic image on an image bearing member. A developer develops a latent image formed on the image bearing member and includes a developing unit having a developer carrying member for carrying thereon and supplying a developer to the image bearing member. A moving member moves the developing unit between an operative position and a non-operative position away therefrom. A supporting member supports the developing unit for rotation about an axis, the supporting member rotatably supporting the developing unit at one side and supporting the developing unit at the other side for rotation and movement in a predetermined direction. An urging device urges the developing unit toward the image bearing member adjacent the other side, and a driver applies a driving force to the developer carrying member of the developing unit. When the developing unit is rotated about the axis and moved to the operating position by the moving member, and the driver is operated, the developing unit is urged toward image bearing member about the axis. The developer has a plurality of such developing units.

Image forming apparatus having a developing means movable between an

An image forming apparatus includes an image bearing member; a system for forming a latent image on the image bearing member; a developing device for developing the latent image formed on the image bearing member, the developing device including plural developing units, and each of the developing units including a developer carrying member movable to carry thereon the developer to supply the developer to the image bearing member and a developer scatter preventing member at a position adjacent the developer carrying member; a driver for moving a selected one of the developing units to a predetermined position faced to the image carrying member; a device for positioning the selected developing unit to an operating position for a developing operation; a member which is contacted to or close to the scatter preventing member when the selected developing unit is placed at the operating position.

An automatic original feeding apparatus has a coordinates position detecting device provided with a supporting table for supporting thereon a sheet original of which the area during image formation is to be designated, a conveying device for directing the inserted sheet original to a predetermined position, and a feed device provided upstream of the conveying device and responsive to the termination of the area designation to change over to a feeding position and feed the sheet original on the supporting table to the conveying device.

Automatic original feeding apparatus having an image area designating

A document feeding apparatus comprising a first original supporting device on which an original is placed, an original inlet port for receiving the original placed on the first original supporting device, a conveying device for guiding the original fed from the inlet port to a predetermined position and exhausting the original from the predetermined position, and a second original supporting device mounted on a housing of the document feeding apparatus and having an image area designation device for designating an image area of the original. In an image area designation mode of the apparatus, the original is placed on the image area designation device, a desired image area is designated, and the original is placed on the first original supporting device and is guided to the predetermined position through the inlet port.

Document feeding apparatus with image area designation device

An image forming apparatus includes an image forming station for forming an image on a sheet; a rotatable member for transferring the sheet in a first direction toward the image forming station; supporting device for supporting the rotatable member for displacement in a second direction which crosses the first direction; driving device for displacing the rotatable member in the second direction to correct deviation of the sheet in the second direction; and inlet guide for guiding the sheet to the rotatable member, the guide being displaceable in the second direction together with the rotatable member.

Growing community of inventors

Kawasaki, Japan

Michiro Koike