Canon Kabushiki Kaisha

Yuji Morishige

Noriyoshi Ueda

Katsuaki Hirai

Mitsushige Murata

Shinichi Nakamura

Kenji Kobayashi

Norifumi Miyake

Takeshi Honjo

Masataka Naito

Tadayuki Kitajima

Yasuo Fukazu

Akimaro Yoshida

Shigeru Sugita

Hitoshi Kato

Naoto Watanabe

Kenichi Hayashi

Yusuke Obuchi

Satoshi Kuroyanagi

Chikara Sato

Kiyoshi Okamoto

Tomoyuki Watanabe

Yuzo Matsumoto

Masatoshi Yaginuma

Yoshifumi Takehara

Seiichiro Adachi

Hisatsugu Tahara

Hideaki Furukawa

Tomobumi Nakayama

Kazuo Onodera

Osamu Iwamoto

Itsuo Sekita

Tsuyoshi Yamada

Kathuhito Kato

When performing a punching operation for each of sheets individually conveyed to a predetermined punching position within a conveying path, each of the individually conveyed sheets is positioned at the predetermined punching position before performing the punching operation.

Sheet processing apparatus

An original reading apparatus with an original feeding apparatus pivotally connected thereto, including a detecting device for detecting the opened state and the closed state of the original feeding apparatus, and a controller for rendering a part or the whole of the original feeding apparatus operable, on the basis of the result of the detection by the detecting device.

Original reading apparatus with openable and closable state and control based thereon

There is provided a punching device including: a die member having a plurality of die holes formed therein; a plurality of punch members which are caused to advance into the die holes to punch holes in a member to be punched; an operating member having cam portions formed along a direction intersecting the direction of advancement of the punch members, the operating member being moved along the direction intersecting the direction of advancement of the punch members to cause by a conversion function of the cam portions the punch members to advance into the die holes; and a drive unit for selectively causing advancement of the plurality of punch members by changing the direction of movement of the operating member. In the punching device, each of the cam portions has a straight groove and a cam groove for performing the conversion function, and when the operating member is moved in one of opposite directions, at least one of the cam grooves of the cam portions acts on one of the punch members to selectively cause the same to advance.

Punching device, sheet processor having the punching device, and image forming apparatus having the punching device

A sheet processing apparatus has a sheet conveyor and sheet processing unit for performing a predetermined process to the sheet conveyed by that sheet conveyor. A sheet discharger discharges the processed sheet to a stacking unit, the unit having a cover which may be opened or closed and which includes a detector for detecting whether or not the cover is opened and closed, and a controller will immediately stop, in a case where the discharge process to the sheet that is performed by the discharge unit, driving of the sheet discharge unit and sheet conveyor when it is detected that the cover is opened and for continuing, in a case where the discharge process to the sheet is not performed by the sheet discharge unit, the driving of the sheet conveyor in spite of the detection that the cover is open.

Sheet processing apparatus with discharge sheet cover and control based on open/close state of cover

A sheet processing apparatus includes a stacking device for stacking a sheet, a delivering device for delivering the sheet to the stacking device, and a pulling device for pulling in a direction opposite to a delivery direction the sheet delivered to the stacking device. The pulling device is structured to keep approximately constant a contract pressure exerted to the topmost sheet delivered on the stacking device, and the pulling device is formed in a tapered shape whose one end is narrower than the opposite end.

Sheet processing apparatus and image forming apparatus

A sheet sorting apparatus includes a plurality of trays for accommodating sheets; a helical cam device, engageable with a cam follower for moving the plurality of trays; a cam driving device for driving the helical cam device; a sheet set processing device movable between processing position and a retracted position where the processing device doe snot interfere with the plurality of trays; a reversible driving device for advancing or retracting the sheet set processing device; and a controlling device for controlling the driving device; wherein a cam surface of the helical cam is constituted of substantially horizontal portions and slanted portions; and the cam driving device and the driving device are controlled by the controlling device, in such a manner that the sheet set processing device starts to enter a processing position when the cam follower shifts from the slanted portions to the horizontal portions, and the entering operation ends by the time the cam follower reaches the middle portion of the horizontal portion, and that the cam driving device is deactivated when the cam follower is substantially at a middle portion of the horizontal portions, and after sheet set processing, the cam driving device and the driving device are actuated, and the sheet set processing device is retracted from a moving path region of the tray by the time the cam follower passes through the remaining portion of the horizontal portions.

Sorter and image forming apparatus

The present invention provides a sheet binding apparatus for effecting stapling operation by rotation of a motor including a current measuring device for measuring a current of the motor, a first timing output device for defining the timing of the stapling operation, a second timing output device for effecting the output at a different timing from an output timing of the first timing output device, a calculation device for measuring outputs of the current measuring device in response to signals from the first and second timing output devices to seek the difference between the measured values, a base current measuring device capable of setting a current value in advance on which the judgement of the presence/absence of a needle is based, and a discriminating device for comparing an output value from the calculation device with a set value of the base current value setting device to judge the presence/absence of the needle.

Sheet binding apparatus having needle detection means, and image forming

A binding apparatus for binding sheet materials with a covering material having a heat-adhesive agent at its bottom portion by bonding the bottom portion of the covering member and edges of the sheet materials includes a holder for holding the covering material and the sheet materials sandwiched by the covering material; a heater for heating the adhesive agent; a switch for switching power supply to the heater; a detector for detecting setting of the covering material in the holder; and a temperature controller. The temperature controller supplies power to provide a first temperature when the covering material is not set in the holder, supplies power to the heater to provide a second temperature higher than the first temperature when the covering material is set in the supporting member, and supplies the power to the heater to provide the first temperature after the covering member is taken out from the holding member.

Sheet material binding apparatus

A sheet original feeding apparatus includes a sheet original stacking tray on which sheet originals to be treated are stacked as an original stack; a sheet original separating means for separating and supplying the sheet original one by one from the bottom of the original stack stacked on the sheet original stacking tray; a sheet original feeding path for directing the sheet original separated by the sheet original separating means; a sheet original feeding means for feeding the sheet original directed by the original feeding path to an image reading portion; a sheet original ejecting path for ejecting the sheet original fed by the sheet original feeding means to the sheet original stacking tray; and an auxiliary sheet original feeding apparatus which can be connected to the sheet original ejecting path. When the auxiliary sheet original feeding apparatus is connected, the sheet original ejecting path serves as a bypass for directing the sheet original from the auxiliary sheet original feeding apparatus to the sheet stacking tray.

Sheet original feeding apparatus with detachable auxiliary feeder

A sheet original feeding apparatus comprises a sheet original stacking tray on which sheet originals to be treated are stacked as an original stack. A sheet original separator separates and supplies the sheet original one by one from the bottom of the original stack stacked on the sheet original stacking tray. A sheet original feeding path is provided for directing the sheet original separated by the sheet original separator. A sheet original feeder feeds in a forward direction the sheet original directed by the original feeding path to an image reading portion. The sheet original feeding means is also operable in a reverse direction, and the sheet original feeding path is arranged at one side of the sheet original feeder. A first sheet original ejecting path is further provided for returning the sheet original fed in the reverse direction by the sheet original feeder to the sheet original stacking tray from a same side of the sheet original feeder as the sheet original feeding path. A second sheet original ejecting path returns the sheet original fed in the forward direction by the sheet original feeder to the sheet original stacking tray. The second sheet original ejection path is arranged at a side opposite to the sheet original feeder means as the sheet original feeding path.

Sheet original feeding apparatus and image forming system

Growing community of inventors

Ibaraki, Japan

Yuji Morishige