Canon Kabushiki Kaisha

Takeshi Aoyama

Shoko Magata

Ayumu Murakami

Takayuki Suga

Yasumi Yoshida

Haruhisa Oshida

Daijiro Kato

Masahiro Funakoshi

Makoto Tanaka

Katsuaki Hirai

Takehiro Kishi

Hiroyuki Takahara

Takaaki Aoyagi

Takashi Hiratsuka

Hyoe Iwata

Yukihiro Miura

Toshio Hayashi

Noriaki Matsui

Katsuhiro Ishido

Shinsuke Ubayashi

Toru Katsumi

Masanari Shirai

Hiroaki Takagishi

Nobuo Matsuoka

Yoshimitsu Nakane

Tsunao Honbo

Ryusei Kominato

Satoru Kijima

Akihiro Kashiwabara

Provided is a sheet feeding device and an image forming apparatus capable of performing sheet feeding by electrostatic adsorption at a low noise with a simple configuration. A first outer nip conveying rollerand a second outer nip conveying rollerthat nip an adsorbing membersupported in a state an inside is loose by a first inner nip conveying rollerand a second inner nip conveying rollerare provided.

Sheet feeding device and image forming apparatus

An image forming apparatus capable of accurately forming an image in a predetermined position on a sheet. An image forming unit forms a toner image on a drum. The toner image is transferred onto a belt. A motor drives the belt to convey the toner image to a transfer position where the toner image is transferred onto a sheet. An image position-detecting section detects that a patch image indicating the position of the toner image on the belt has reached a detection position upstream of the transfer position in an image conveying direction. A sheet position-detecting section detects that the leading edge of the sheet has reached a detection position upstream of the transfer position in a sheet conveying direction. An image speed-setting section controls the conveying speed of the belt based on timings of detection by the respective image position-detecting and sheet position-detecting sections.

Image forming apparatus that transfers toner image onto sheet

The invention is to provide a miniaturized sheet processing apparatus in that a conveying length a conveying distance need not be increased even though the number of sheets per bundle increases. A glue applying bookbinder that partially glues sheets and performs a pressing process to form a sheet bundle. The glue applying bookbinder includes a processing tray that stacks sheets, a glue applying portion that applies a glue on the sheets on the processing tray, and pressing portions that press the sheets on the processing tray. The glue applying portion is arranged such that the glue applying portion can be moved from a first standby position outside the sheets stacked on the stacking portion to a second standby position, different from the first standby position, outside the sheets through an upper surface of the sheets, and the pressing portions are moved integrally with the glue applying portion.

Sheet processing apparatus and image forming apparatus

An image scanning device including: a conveyance path which conveys originals; a first scanning means and a second scanning means which are placed such that they sandwich the conveyance path; and a white reference member used for adjusting the white levels of the scanning means; wherein at least one of the first scanning means, the second scanning means and the white reference member is movable; the first scanning means and the second scanning means can scan the same surface of said white reference member since the first scanning means or the second scanning means is moved or the white reference member is moved.

Image scanning device and image forming device

An image scanner in which in scanning an image of a document placed on a scanner body, an image scanning device moves and scans the image of the document. In scanning an image of a document fed by a document feeder to the scanner body, the image scanning device moves to a predetermined scanning position and then scans the image of the document in the scanning position. When the image scanning device arrives at the scanning position, the image scanning device is pressed against a stopper that is positioned relative to the document feeder.

Image scanner with image scanning device positioning

The invention is to stabilize an amount of application of a glue to sheets, to stabilize adhesive force between the sheets, and to further improve the productivity of a glued sheet bundle. A sheet processing apparatus includes a processing traythat stacks a sheet discharged by a pair of discharge rollers, an attitude changing unitthat displaces the aligned sheet bundle on the processing trayto partially expose sheet surfaces, an adhesive agent delivery devicethat applies a glue to the exposed parts of the sheet surfaces of the displaced sheet bundle on the processing trayand a sheet bundle aligning portion such as aligning platesandthat aligns the glued sheet bundle.

Sheet processing apparatus and image forming apparatus having the same

An image reader is provided which includes a document reader unit having a document stand configured for placing a document to be read thereon; a document conveying unit removably positioned on top of the document reader unit, wherein the document conveying unit is configured for conveying the document to be read onto the document stand; a discharge tray configured to receive a read document thereon conveyed by the document conveying unit; and a restriction member movably positionable between the document stand and the discharge tray, wherein the restriction member is configurable in an upright orientation for restricting the position of an end of the read document placed on the discharge tray.

Image reader

An image reading apparatus and an image expansion and contraction correcting method are provided that improve the quality of each read image by restraining image expansion and contraction caused by a variation in the combination of conveying units for conveying each document. The image reading apparatus has conveying units (a first conveying unit, a second conveying unit, and a third conveying unit) that convey each document, and an image reading unit (a first image reading unit and a second image reading unit) that reads an image of each document being conveyed by the conveying units. The image reading speed of the image reading unit is adjusted in accordance with a change in the combination of conveying units that are conveying a document, so as to correct image expansion and contraction caused by a change in document conveying speed caused by the change in the combination of conveying units.

Image reading apparatus, and image expansion and contraction correcting method

Provided is a bookbinding apparatus including: a conveying unit which sequentially conveys sheets; a gluing unit which glues the sheets conveyed by the conveying unit; a stacking unit which sequentially stacks the sheets glued by the gluing unit; a pressurizing unit which pressurizes glued portions of the sheets stacked on the stacking unit; and a control unit which temporarily stops a stacking process carried out by the conveying unit onto the stacking unit and causes the pressurizing unit to execute a pressurizing process on the sheets stacked on the stacking unit when an operation interrupting event occurs during the stacking process.

Bookbinding apparatus and image forming system

An image reading apparatus accurately determines the positions of image forming mirrors formed with an off-axis reflecting surface, while enabling any thermal expansion caused by a rise in temperature due to a rise in the surrounding temperature to be absorbed. Each image forming mirror formed with an off-axis reflecting surface comprises respective and independent units for determining the positions in the longitudinal direction, in the lateral position, and in the direction orthogonal to the reflecting surface. Holes with which the longitudinal position determining units and the lateral position determining units engage have gaps in the directions orthogonal to the position determining directions to absorb the thermal expansion caused by a rise in the temperature of the image forming mirror when the position determining units engage with the holes. Determination of the position of the reflecting surfaces of the image forming mirrors is carried out by urging faces provided on the reflecting surface side against the housing.

Image reading apparatus

An original-transporting rotor configured to transport an original to an image-reading section and, after correcting skew of the original, to an original-transporting section capable of opening and closing relative to the image-reading section is provided. The original-transporting rotor is supported so as to define a variable angle with a light source provided in the image-reading section. When the original-transporting section is closed, an original-transporting mechanism is positioned by position regulating members.

Image-reading apparatus

An image reading apparatus has an original placing portion on which an original is placed, a feed portion for feeding the original placed on the original placing portion to convey the original from one end side of an original plate onto the original plate, a conveying rotary member for conveying the original on the original plate, a reversing and conveying portion for reversing the front side and back side of the original conveyed to the other end side of the original plate by the conveying rotary member, and conveying the reversed original from the other end side onto the original plate, an image reading unit for reading the image of the original stopped on the original plate while being moved, and a control portion for controlling the driving of the conveying rotary member. The control portion controls the conveying rotary member so as to stop the original conveyed from the one end side by the feed portion at a first reading position on the original plate, and stop the original conveyed from the other end side by the reversing and conveying portion at a second reading position on the original plate differing from the first reading position.

Image reading apparatus and image forming apparatus provided with the same

Provided is an image reader including: a first reading device for reading an image on one side of a document moving on a transparent glass plate; a second reading device as a movable reading device, for reading one of an image on another side of the document moving on the transparent glass plate and an image on another side of the document remaining stationary on the transparent glass plate; and a show-through preventing member for preventing show-through of the document at a first position opposed to the first reading device, characterized in that the show-through preventing member is provided movably from the first position opposed to the first reading device to a second position in which reading of an image by the second reading device is prevented from being hindered.

Image reader and image forming apparatus

An object of this invention is to provide an image reading apparatus capable of reading an original image at high speed. And other object is to provide an image reading apparatus in which even when heat is generated at an inverter, reading operation is not influenced. In order to achieve these object, the image reading apparatus is comprised with a scanning means including, a light source for illuminating an original, an image pickup element for receiving reflected light from the original, a cabinet and an inverter provided at a vicinity of a side face of the cabinet in parallel with a direction of moving the light source for driving the light source, a communicating means provided at a vicinity of a side face of the cabinet opposed to the side face at the vicinity of the inverter and a cooling fan for cooling an interval between the inverter and the communicating means.

Growing community of inventors

Abiko, Japan

Takeshi Aoyama