Canon Kabushiki Kaisha

Hideaki Kosasa

Yuji Yamanaka

Yoshimasu Yamaguchi

Toshihiko Kusumoto

Kozo Sakakibara

Yuji Takahashi

Hiroshi Ohta

Kimiaki Hayakawa

Akihiro Shimizu

Jiro Shirakata

Wataru Kawata

Koji Takematsu

Kohei Koshida

Masahiko Yokota

Shoji Takeda

Ryuichi Kojima

Hideaki Miyazawa

Toshiro Tomono

Hisashi Otaka

Hiroshi Ota

Kenichi Manabe

Takashi Fujita

Yutaka Ban

Fumio Tazawa

Haruhiko Omata

Yutaka Kakehi

Hiroshi Kokubo

Keita Shigihara

Ryuichi Iwanaga

Michiaki Endoh

Ken-ichi Manabe

A belt conveyance apparatus includes a plurality of support rollers, an endless belt, a regulation portion configured to regulate a shift of the endless belt in a width direction, a regulation receiving member configured to contact the regulation portion to receive a regulation force by the regulation portion, and support members disposed on an upstream side, in a conveyance direction of the endless belt, of the support rollers provided with the regulation portion to oppose each other on an inner peripheral surface side and an outer peripheral surface side of the end portion side of the endless belt in the width direction, and configured to regulate a position of the regulation receiving member when the regulation receiving member enters a contact portion with the regulation portion.

Belt conveyance apparatus and image forming apparatus

An image forming apparatus includes: an image bearing member; a toner image forming unit; an endless transfer belt; a transfer roller urged from an inner peripheral surface of the transfer belt toward the image bearing member via the transfer belt; a feeding surface forming roller, provided downstream of the transfer roller with respect to a traveling direction of the transfer belt, having such a shape that a diameter at each of end portions is smaller than a diameter at a central portion with respect to a rotational axis direction; and a stretching roller, downstream of the feeding surface forming roller with respect to the traveling direction of the transfer belt, having such a shape that a diameter at each of end portions is larger than a diameter at a central portion with respect to the rotational axis direction.

Image forming apparatus having transfer belt rollers of specific shapes

A belt unit includes an endless belt, a tension roller, at least one extension roller, a first bearing portion supporting a first end of the tension roller such that the first end is movable in a tension direction and is detachably mounted to be able to release the tension force by the first end coming off from the first bearing portion, a second bearing portion supporting a second end of the tension roller to be movable in the tension direction, a first urging portion urging the first end of the tension roller, a second urging portion urging the second end of the tension roller, a first frame portion integrally supporting the first bearing portion, the first urging portion, and the extension roller, and a second frame portion integrally supporting the second bearing portion, the second urging portion, and the tension roller and detachably mounted on the first frame portion.

Rotary endless belt unit for use in an image forming apparatus and image forming apparatus having same

An image forming apparatus capable of reading a unique pattern of a toner bottle without using an expensive device, and of preventing the delay of the toner replenishment. A control unit controls a driving unit to rotate a toner bottle for replenishing toner and controls a reading unit to read a unique pattern of the toner bottle in conjunction with the rotation of the toner bottle, when receiving a toner replenishment signal in N-th time from a toner remaining amount detection unit after receiving the bottle detection signal from a bottle mounting detection unit.

Image forming apparatus having toner replenishment unit

A surface processing apparatus includes a heater and a controller for controlling a heating of a sheet. The controller determines a difference between a position, on the sheet, of an image indicated by original image information and a position, on the sheet, of the actually formed image on the sheet indicated by outer configuration information of the sheet and the actual image information. The controller corrects inputted heating position information, for the heater, on the basis of information of the difference, and controls the heating of the heating means in accordance with the corrected heating position information.

Surface processing apparatus and image formation system

A surface processing apparatus includes a heating unit and a detachably mountable film cartridge. The film cartridge is provided with a first opening portion into which the heating unit proceeds, and an operational portion disposed in a casing, for acting on a shutter of the heating unit to move the shutter between a closing position (first position) and an opening position (second position). The heating unit proceeds into the casing through the first opening portion with the shutter being in the closing position, and the operational portion acts on the shutter in the casing to move the shutter to the opening position.

Processing apparatus and cartridge

An engraving processing apparatus includes a laser engraving unit configured to perform engraving processing for forming a recessed portion on a sheet by irradiating a laser beam onto the sheet, and a controller configured to control an engraving processing operation of the laser engraving unit.

Engraving processing apparatus and image forming apparatus

An image forming system which realizes reliable output of an original of a finished book, while maintaining security. A sheet-unique information-reading unit reads sheet-unique information unique to a sheet used for making a finished book based on image data. A memory section stores the sheet-unique information read by the sheet-unique information-reading unit in association with the image data based on which a finished book is made. In outputting an original of the finished book, a CPU causes an image forming device to perform image output based on the information stored in the memory section.

Image forming system

A sheet processing apparatus configured to bind a sheet bundle includes a folding portion configured to fold the sheet bundle, a sheet processing portion provided upstream of the folding portion and configured to form a groove at a fold position of at least one sheet of the sheet bundle, and a controller configured to control an operation of the sheet processing portion. The controller controls an operation of the sheet processing portion such that a width of a groove formed on a sheet located on an outer side of the folded sheet bundle is larger than that of a groove formed on a sheet located on an inner side of the folded sheet bundle.

Sheet processing apparatus and image forming apparatus

An image forming member has a first sheet conveying member arranged at upstream side of a sheet conveying path of a sheet material, a second sheet conveying member arranged at downstream side of said sheet conveying path, a guide member which is provided between the first and the second sheet conveying members and guides the sheet material and a movable portion which is provided in the guide member and executes front-and-far-side adjustment of the sheet material by moving a portion against which the tip of sheet material is abutted in parallel to a sheet width direction perpendicular to a conveying direction.

Image forming apparatus

Conveyance speed of recording materials by a fixing roller pair can be set to conveyance speed based on detected results of a recording material detector and a loop detecting sensor, and information on the recording material that has been stored in a memory in advance, and the conveyance speed of the fixing roller pair is set so that loop length of the recording material will be a lower limit length, after the loop detecting sensor detects a loop of the recording material, and before the rear end of the recording material passes through the transfer roller pair.

Image forming apparatus with conveyance speed control based in part on loop detection

An image forming apparatus includes an electrode member to prevent the generation of an image defect in the image forming apparatus, in which the electrode member is provided in the downstream side of a transfer device, the transfer device and a fixing device are arranged while brought close to each other, and the sheet is sandwiched by the fixing device while sandwiched and conveyed by an image bearing device and the transfer device.

A toner supplying container detachably mountable to an image forming apparatus includes a container body for accommodating toner, the container body being provided with an opening for permitting supply of the toner into a toner receiving container; a removable sealing member for sealing the opening, the sealing member is provided with a force applying portion for applying force for removing the sealing member from the opening; an elastic member urging the force applying portion from a predetermined position in the direction of removing the sealing member; a releasable locking member for releasably locking the force applying portion of the sealing member at the predetermined position against elastic force of the elastic member.

Toner supply container and toner receiving container for receiving toner from same

The present invention provides a sheet aligning apparatus which comprises a containing tray for containing sheets, a sheet storing device disposed above a sheet bundle contained in the containing tray and revolved between a first position to store the sheets in the sheet storing device and a second position to shift the stored sheets to the containing tray by the sheet storing device, and a posture maintaining device for rotating the sheet storing device when the sheet storing device is revolved, so that a posture of the sheet storing device in the first position becomes substantially the same as that in the second position.

Growing community of inventors

Abiko, Japan

Hideaki Kosasa