Canon Kabushiki Kaisha

Shigeyoshi Onoda

Shinji Kanemitsu

Morikazu Mizutani

Akihiro Nomura

Fumio Nishino

Tokihide Ebata

Mototada Toriumi

Isao Ikemoto

Hajime Kitajima

Haruo Uchida

Mitsuru Kurata

Yasuo Miyauchi

Akio Takeda

Hajime Katayama

Hiroshi Nitanda

Kazuo Ohyama

Tateki Nagaoka

Hiroshi Hara

Hiroshi Nakai

Tadayuki Tsuda

Hiroshi Ogawa

Tsutomu Toyono

Atsushi Kubota

Makoto Kashimura

Yasutsugu Saijo

Takao Aoki

Osamu Hoshino

Masashi Suda

Yusaku Takada

Akiyoshi Torigai

Haruhisa Honda

Kazuyoshi Chiku

Haruo Tsunoi

Noriyoshi Iida

Sumitoshi Sootome

Yoshitomo Goshima

Kazuo Kawakubo

Eiichi Kondo

Keiko Okuma

A printing apparatus and method can maintain an appropriate spacing between a print head and the overall printing surface of printing media of a wide range of thicknesses, with a platen mechanism that allows the printing medium to move in parallel displacement, namely both in a direction downstream along the advance of the printing medium and in a direction away from the print head.

Printing apparatus and method

The present invention provides a sheet conveying apparatus comprising a sheet supply device which supplies a sheet, a guide member which guides the sheet delivered by the sheet supplying device, a hold down member which presses the sheet against the guide member, a release device which releases the pressure of the hold down member, and a control device which controls the sheet supply device in connection with pressure releasing operation of the release device.

Sheet conveying apparatus having a releasable press member for applying

An ink jet recording apparatus comprises a mounting portion on which an ink jet cartridge is detachably mounted, the cartridge having a connector and a recording head portion for discharging ink to perform image recording. The mounting portion has a body connector associated therewith for electrically connecting the connector of the cartridge to the apparatus. A recording head positioner positions the recording head portion of the cartridge on the mounting portion. An operation device displaces the cartridge and the body connector relative to each other to connect the body connector to the cartridge connector.

Ink jet cartridge mounting device and method

A sheet transport apparatus includes a device for generating an electrostatic attraction force for attracting a sheet member to a surface of a transport belt disposed close to another surface of the transport belt opposite to the surface that contacts the sheet member. The apparatus is arranged to reduce a drive load on the transport belt caused by the electrostatic attraction force. To achieve this effect, at least one of a surface of the electrostatic attraction force generating device contacting the transport belt and a surface of the transport belt contacting the electrostatic attraction force generating device is roughened. Alternatively, an electrostatic attraction force generated at at least one particular portion of the transport belt by the electrostatic attraction force generating device is smaller than an electrostatic attraction force generated at another portion of the transport belt.

Sheet transport apparatus with minimized load between electrostatic

A sheet conveying apparatus includes a sheet accommodating unit for accommodating a plurality of sheets, a sheet feeding unit for feeding sheets from the sheet accommodating unit, separation pawls for individually separating the sheets fed from the sheet feeding unit, a manual feeding port for manually feeding a sheet between the sheet accommodating unit and the sheet feeding unit, and a manually-fed-sheet guiding unit disposed between the sheet accommodating unit and the sheet feeding unit for guiding the sheet manually fed from the manual feeding port. The manually-fed-sheet guiding unit is displaceable an amount sufficient to allow the formation of a loop in a sheet during the separation by the separation pawls.

Sheet conveying apparatus with displaceable guide between cassette and

An image forming apparatus includes a first assembly, a second assembly movable relative to the first assembly to open and close the image forming apparatus, a photosensor provided in the first assembly, illuminating source provided in the second assembly, for illuminating an original to be copied, and light transmitting element for transmitting light emitted from the illuminating source in the first assembly to the photosensor in the second assembly.

Image forming apparatus and process cartridge therefor

The present invention provides a recording apparatus with a supply roller for supplying a sheet, a sheet directing path for directing the sheet supplied by the supply roller to a recording portion, a sheet ejection path for directing the sheet recorded at the recording portion to an ejection outlet, a guide for guiding a sheet to be introduced from the ejection outlet, and sheet feeding rollers and detectors for directing the introduced sheet to the recording portion through the sheet ejection path and thereafter for returning the sheet to the ejection outlet.

Recording apparatus which uses the sheet ejection outlet as a sheet

Ink jet cartridge and ink jet recording apparatus employing the same

The improvement is in the driving mechanism and positioning mechanism between an image bearing member and a main assembly of an image forming apparatus using the image bearing member. The image bearing member has a shaft receiving portion adjacent the center thereof to receive a positioning shaft of the main assembly when the image bearing member is mounted in said main assembly. By the receiving engagement, the image bearing member is correctly positioned with respect to the main assembly. The image bearing member is also provided with a driving force receiving portion where the image bearing member is engaged with a driving member of the main assembly so that the image bearing member can be driven from the main assembly. In such an arrangement, the shaft receiving portion and the driving force receiving portion are radially overlapped, at least in part, with each other as seen from a rotational axis of the image bearing member.

Image bearing member and driving mechanism therefor

A transmissive original projecting apparatus has an illuminator for illuminating a transmissive original, a projector for directing light transmitted through the transmissive original to the original supportion portion of an original reading apparatus, and a connecting device for connecting the illuminating illuminator and the projector together.

Transmissive original projecting apparatus

A process kit includes a support member having a photosensitive member integrally mounted thereon together with process elements for acting on the photosensitive member. The support member is mountable on and removable from a main image forming apparatus having an optical system for projecting an image onto the photosensitive member. The support member has a positioning element for engaging the optical system in order to position the optical system accurately with respect to the photosensitive member. This configuration permits sharply formed images to be formed on the photosensitive member after removal and remounting of the process kit.

Process kit and positioning mechanism for the process kit

An image forming apparatus with a position detection capability to prevent an image forming operation starting signal being generated by mistake to thereby start the image forming operation when an image forming apparatus is not in its normal installed state for use, for example, when the apparatus is in its carried state or its erected state with one side thereof facing downward.

Portable image forming apparatus

An image forming apparatus for forming an image of an original using an optical image of the original has: a first assembly; a second assembly cooperable with the first assembly the second assembly being movable relative to the first assembly; between a closed position wherein the apparatus is operable and an open position wherein the apparatus is opened; a reciprocable original supporting member for supporting an original; an optical system, in the second assembly, for forming the image of the original supported on the original supporting member; a second guiding member, on the second assembly, for guiding and positioning the original supporting member adjacent one of the sides of the original support member, wherein the original supporting member is movable to be disengaged from the second guiding member, the second guiding member being contactable with the original supporting member to correctly position the original supporting member with respect to the second assembly when it is engaged with the original supporting member.

Image reading device and image forming apparatus having same

An image bearing member which is detachably mounted into a main assembly, and which is to be electrically connected with the main assembly. The image bearing member has a conductive drum member having an insulating flange. Adjacent an inside end of the insulating flange, a conductive member is provided in the manner it is electrically connected to an inner surface of the conductive drum member. The conductive member is electrically connected with a conductive member of a main assembly when the image bearing member is mounted in the main assembly.

Image bearing member usable with image forming apparatus

Growing community of inventors

Yokohama, Japan

Shigeyoshi Onoda