Canon Kabushiki Kaisha

Tsuyoshi Waragai

Yasuyoshi Hayakawa

Tomoyuki Araki

Masayoshi Fukatsu

Atsushi Ogata

Teruo Komatsu

Toshifumi Moritani

Hiroshi Yukimachi

Hiroo Kobayashi

Hiroaki Miyake

Yoshiro Tsuchiya

Takahiro Azeta

Tadashi Yagi

Junichi Sekiyama

Masahito Ohtsuka

Osamu Hoshii

Kaoru Sato

Junichi Kimizuka

Toshihiko Inuyama

Akihisa Kusano

Kazuhiko Okazawa

Hiroaki Namiki

Takamasa Sawada

Makoto Abe

Toshiyuki Ito

Masahito Otsuka

Takahiro Azeda

Takao Yokomizo

An image reader includes a first image-reader unit, mounted on a body of the image reader, for reading image information of an original document on a first image-reader section, a closing unit which is openably supported on the body of the image reader through a closing device, a second image-reader unit, mounted on the closing unit, for reading image information of an original on a second image-reader section, and a closed-state detector for detecting a closed state of the closing unit. The closed-state detector includes a photoemitter, a photodetector, and a light-blocking unit which blocks a light beam traveling from the photoemitter to the photodetector, by moving in operative association with the opening and closing operation of the closing unit.

Image reader with a closed-state detector and image forming apparatus using same

An object of the present invention is to provide an image reading apparatus that has first reading device for reading a first surface of an original, and second reading device for reading a second surface opposite to the first surface of the original, the first reading device and the second reading device being provided on the first surface side and the second surface side, respectively, with the original as a boundary, the second reading device including a light source and a reading member for reading image light from the original irradiated by the light source, the reading member being provided separately from a vertical line passing through the light source.

Image reading apparatus

An image reading apparatus includes a light transmitting member opposed to an original, a reading device for reading the original image through the light transmitting member, and a standard portion which is read by the reading device to perform shading compensation, wherein the standard portion is provided on the opposite side of the original with respect to the light transmitting member.

A sheet conveyed by a conveying member is pressed against a registration roller pair in a stop state, thereby forming a loop in a loop formation space between the conveying member and the registration roller pair. A lower member which forms the lower surface of the loop formation space has a shape with which the sheet conveyed by the conveying member moves toward the registration roller pair along an upper member which forms the upper surface of the loop formation space in forming the loop. When the lower member is pressed by the sheet conveyed by the registration roller pair while attenuating the loop, the lower member moves downward.

Sheet conveying apparatus, and image forming apparatus and image reading apparatus having the sheet conveying apparatus

The present invention relates to a bookbinding apparatus attached to face to an end face of a sheet bundle where the sheet bundle is formed of collected sheets on which images are formed by an image forming apparatus. The bookbinding apparatus comprises a container detachably attached to a body of the bookbinding apparatus and an adhesive sheet on a surface of which a hot melt type adhesive to be melt by a heating means is coated, the adhesive sheet being contained in the container as in a state that the adhesive sheet is wound in a roll shape.

Bookbinding apparatus, adhesive cartridge, and image forming apparatus

A sheet processing apparatus including a stacking portion for stacking sheets, an alignment reference wall disposed in approximately parallel with a conveying direction of the sheet, an alignment moving wall for performing alignment by making an end portion of the sheet hit with the alignment reference wall, a processing mechanical section for carrying out binding with respect to the sheet bundle thus aligned, and a plurality of rotating pairs disposed in a widthwise direction approximately perpendicular to the conveying direction of the sheet for conveying the sheet bundle in a pinching manner. The sheet processing apparatus is capable of performing a process such as binding in the processing mechanical section after the sheet bundle which has been aligned by the alignment reference wall and the alignment moving wall is conveyed by a predetermined distance by the rotating pairs, and it is characterized in that each of the plurality of the rotating pairs disposed in the sheet widthwise direction has a pressure different from that of other rotating pairs for pinching the sheet.

Sheet processing device with stack alignment

A sheet treating apparatus has a discharging device for discharging a sheet with an image formed thereon to a sheet stacking device, the stacking device having an abutment reference member disposed on the leading end side of the sheet stacking device and an urging member disposed on a sheet trailing end side of the sheet stacking device for urging the sheet discharged from the discharging device toward the abutment reference member.

Aligning device for sheet finisher

The present invention relates to a sheet processing apparatus comprising an intermediate staking portion for aligning a sheet sent, a reference wall for positioning the sheet, a stapler form performing a binding operation with respect to a sheet bundle aligned by the reference wall, delivery means for delivering the sheet bundle from the intermediate stacking portion, a sheet stacking portion for stacking the sheet bundle and guide means provided above the sheet stacking portion and at an end portion on the stapler side of the end portions in the width direction of the sheet. The guide means supports an end portion on the stapler side of the sheet bundle when the sheet bundle is delivered from the delivery means in a staple mode in which the binding operation is preformed with respect to the sheet bundled.

Sheet processing apparatus and image forming apparatus

A discharged sheet stacking apparatus includes a sheet feed-in device for pinching and feeding a sheet onto a sheet stacking portion on which a plurality of sheets are stacked and for causing a tip end of the sheet to abut against a sheet stopper. The sheet feed in device is disposed at a position spaced apart from the sheet stopper by a distance smaller than a length of the sheet. The sheet feed-in device continues the feeding operation while pinching a tail end of the sheet even after the tip end of the sheet abuts against the sheet stopper so that, after a loop is formed in the tail end of the sheet, the sheet is discharged onto the sheet stacking portion.

Discharged sheet stacking apparatus and image forming apparatus having such stacking apparatus

This invention relates to a sheet fastening apparatus comprising sheet bundle conveying means for conveying sheet bundles and sheet bundle fastening means for fastening sheet bundles. The sheet bundle fastening means is disposed on either side, of the sheet bundle, extending substantially parallel in a sheet conveyance direction and fastens the sheet bundle at least at a position upon stop of conveyance of the sheet bundle by the sheet bundle conveying means.

In line rotatable stapling device

A sheet conveying apparatus including a conveying path changing device, the conveying path changing device having a main conveying path for conveying a sheet, a plurality of branched paths branched from the main conveying path, a plurality of oscillatable flappers for selecting between a changed position where the sheet is guided from the main conveying path to one of the branched paths and a retracted position permitting passage of the sheet, a single solenoid for oscillating the plurality of flappers, a single link for connecting the solenoid and the flappers, and a sensor confirming movements of the flapper by detecting a movement of the link.

Sheet conveying apparatus with conveying path changing device and sorter

A sheet stacking device including a stacking tray for stacking and containing sheets, and a lifting and lowering device for moving the staking tray up and down. In this case, the lifting and lowering device includes a driving force converting device for changing the distance of moving the stacking tray as an input and output ratio with respect to a predetermined driving force from a driving source, and changing the elevating speed of the stacking tray according to the input and output ratio. The driving force converting device includes a suspension member for suspending the stacking tray and a winding member having a conical winding portion for winging the suspension member, and lifts and lowers the stacking tray by rotating the winding member, and the elevating speed of the stacking tray is changed according to the winding length of the suspension member, which is changed depending on the diameter difference of the winding portion.

Image forming apparatus and sheet stacking device with lifter

A sheet receiving/stacking device, which has a sheet stacking portion for stacking sheets, a sheet conveying portion for conveying sheets to the sheet stacking portion, and a retractable sheet guiding portion for catching the bottom surface of a sheet and then guiding the sheet to the sheet stacking portion. The sheet guiding portion is moveable between a guide position and a retracted position.

Sheet receiving/stacking device, and image forming apparatus having the same

A sheet passage changing apparatus includes a plurality of swingable changing devices for changing a sheet transporting direction; common drivers for swinging the plurality of changing devices; a controller for actuating the drivers, before a sheet reaches an upstream one of the changing devices, to actuate the upstream one of the changing devices, thus changing the sheet transporting direction and for actuating the drivers, after the sheet passing through the upstream changing device and before the sheet reaches a downstream one of the changing device, to actuate the downstream changing device, thus changing the sheet transporting direction.

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Shizuoka, Japan

Tsuyoshi Waragai