Canon Kabushiki Kaisha

Miho Kaiga

Yohei Suzuki

Junichi Ochi

Shinkichi Yamamoto

Kenichi Fujii

Naoki Hayashi

Takeshi Kubota

Teruhiko Sasaki

Koji Kawamura

Yasuhiko Fuse

Atsushi Kawarago

Toshifumi Kitamura

Takeshi Takagi

Kazuhide Okuno

Taku Nishikawa

A conveyance apparatus for conveying a sheet includes (i) a first conveyance roller pair, (ii) a second conveyance roller pair configured to convey the sheet to reach a position where the sheet contacts the first conveyance roller pair, (iii) a moving member movable between a restricting position where the sheet is regulated not to reach the first conveyance roller pair and a retracting position, to be moved to the retracting position from the restricting position by being pushed by the sheet, (iv) a first guide disposed between the moving member and the second conveyance roller pair, and (v) a first opposing guide opposing the first guide. One of the first guide and the first opposing guide includes a first curved portion which the sheet contacts, and the other one thereof includes a second curved portion which the sheet contacts.

Conveyance apparatus and image forming apparatus

An image forming apparatus includes an image forming unit configured to form an image on a recording material, a controller configured to control the image forming unit, a sheet feeding tray configured to store a recording material to be supplied to the image forming unit, and a sheet feeding tray cover configured to cover an access point of the sheet feeding tray. The sheet feeding tray cover includes a user interface for inputting information into a controller unit or outputting information from the controller.

Image forming apparatus including user interface unit for inputting or outputting information

An image forming unit forms an image on a sheet. The sheet is conveyed through a conveyance path after the image has been formed on the sheet. A reading unit reads the image formed on the sheet in the conveyance path. A conveyance guide constitutes a portion of the conveyance path and guides the sheet. A pressing unit presses the reading unit against the sheet. A connection unit connects the reading unit and the conveyance guide such that the reading unit and the conveyance guide move in an interlocked manner.

Technique for conveying reading unit while pressed against sheet

A sheet discharge apparatus includes a pivot member pivoting in an up-down direction by being pressed by a sheet discharged from a sheet discharging portion, with the pivot member retained by being in contact with an uppermost sheet supported on the sheet supporting portion. A control unit changes a sheet interval between a preceding sheet and a succeeding sheet and executes a first discharge operation in which at least one sheet is discharged, and a second discharge operation in which sheets are discharged by the sheet discharging portion at a first sheet interval such that the pivot member does not contact with an uppermost sheet supported on the sheet supporting portion during the second discharge operation, and the control unit acquires a number of sheets to be discharged in the second discharge operation based on a detected position of the pivot member detected during the first discharge operation.

Sheet discharge apparatus and image forming apparatus

A transfer unit includes a reading unit to read an image on a sheet conveyed along a conveyance path, a first signal transmission member having a flat shape and is connected to the reading unit, and a relay member connected to the first signal transmission member. The relay member relays a signal from the first signal transmission member, and a second signal transmission member having a round shape and is connected to the relay member. The second signal transmission member leads into an apparatus body from an inner portion of the transfer unit in an axial direction of a first rotation shaft.

Image forming apparatus

A sheet conveying apparatus includes a first roller pair conveying a sheet, a second roller pair provided downstream, in a sheet conveying direction, of the first roller pair, and a moving member having an abutment portion. The moving member moves from an abutment position in a sheet conveying path upstream of a nip portion of the second roller pair to a passing position at which the sheet conveyed by the first roller pair is allowed to pass through. In a case where a first sheet and a second sheet are conveyed successively by the first roller pair, when the moving member is at the abutment position in which the abutment portion is pushed by the second sheet while the first sheet is conveyed by the second roller pair, a rear end of the first sheet is located upstream of the nip portion of the second roller pair.

Sheet conveying apparatus and image forming apparatus

When an operating lever is moved from an operation position to a stand-by position, a standard size fixing member is lowered in advance of a non-standard size fixing member, so that a regulating member for regulating a position of an end portion of a sheet can be set to a desired position, enabling stable sheet feeding.

Stacking device and image forming apparatus

A sheet conveying apparatus includes a first rotator pair, a second rotator pair provided downstream, in a sheet conveying direction, of the first rotator pair, and a moving member having an abutment portion. the first rotator pair, the second rotator pair and the moving member are configured such that a rear end of the sheet does not pass on a moving trajectory of the abutment portion when the moving member moves from a passage state in which the sheet is allowed to pass through the abutment portion as the abutment portion is pressed by the sheet conveyed by the first rotator pair to an abutment state in which the abutment portion protrudes into a sheet conveying path.

A sheet conveying apparatus includes first and second rotator pairs, a moving member including an abutment portion against which a front end of the sheet conveyed by the first rotator pair abuts and a guide member provided at upstream, in the sheet conveying direction, of a nip portion of a second rotator pair. The guide member configured to be movable to a first position where the guide member guides the sheet toward the moving member in a projection state and to a second position away from the moving member more than the first position and turns to the second position during when the sheet is conveyed by the second rotator pair.

A sheet conveying apparatus includes first and second rotator pairs and a sheet detecting portion. The sheet detecting portion includes a moving member provided to move to a detection state from a standby state in which the moving member protrudes into a sheet conveying path by being pressed by a front end of the sheet conveyed by the first rotator pair and such that a rear end of the sheet does not pass within a moving trajectory of the moving member in moving from the detection state to the standby state and a sensor detecting the sheet based on the move of the moving member from the standby state to the detection state.

A sheet conveying apparatus which detects an end part position of a sheet in a sheet width direction orthogonal to a conveying direction of the sheet conveyed on a sheet conveying path, comprising a plurality of sensor portions; a holding portion which holds the plurality of sensor portions; a plurality of aperture stops which is disposed between the light emitting portion and the light receiving portions and which is provided on the holding portion; and a driving portion which causes a movement of the holding portion in the sheet width direction.

An electrophotographic image forming apparatus forms an image on a photosensitive drum of a process cartridge also containing, process means, and a memory with a contact. The apparatus includes a member movable between opening and closing positions; a detector detecting closing of the movable member; a connector having a contact s movable between contact and separating positions; (v) an operator moving the connector from the separating to the contact position; a holder engageable with the operator to hold the connector at the contact position; for a controller communicating with the memory through the connector after detection of a signal change outputted from the detector when the movable member moves away from the closing position; for a releasor releasing engagement between the holding and operation members after the movable member moves from the closing position by a predetermined distance; and an urger urging the connector in a direction away from the contact position toward the separating position.

Electrophotographic image forming apparatus having main assembly contact contacting a cartridge contact of a memory

A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus. The main assembly includes an opening, a cover movable between open and closed positions, and a main assembly electrical contact. The cartridge includes a photosensitive drum; a memory element for storing cartridge; a cartridge contact electrically connected with the memory element being electrically connectable to the main assembly contact when the cover is moved from the open to the closed position after cartridge mounting; a first engaging portion for engaging a main assembly supporting member to position the supporting member with respect to a longitudinal direction of the cartridge before the cover is moved from the open position, and a second engaging portion for engaging the supporting member which moves in interrelation with a movement of the cover when the cover is moved from the open toward the closed position after cartridge mounting and for positioning the supporting member in a direction crossing the longitudinal direction before the main assembly contact is electrically connected with the cartridge contact.

Process cartridge having cartridge electrical contact connected to a cartridge memory element and connectable to a main assembly electrical contact and image forming apparatus to which such cartridge is mountable

An image forming apparatus includes an image forming portion for forming an image, an image reading portion for reading an image, displaceable with respect to the image forming portion, and an open/closable member that can be opened or closed with respect to a main body of the image forming portion and displaced toward the image reading portion, wherein the displacement of the open/closable member is effected in relation to the displacement of the image reading portion. In this manner the open/closable member can be opened or closed by a simple operation, without increasing the dimension of the image forming apparatus.

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Suntou-gun, Japan

Miho Kaiga