Toshiba Tec Kabushiki Kaisha

Kabushiki Kaisha Toshiba

Toshiaki Oshiro

Hiroyuki Taki

Yoshiaki Sugizaki

Takahiro Kawaguchi

Isao Yahata

Ken Iguchi

Hiroyuki Hazu

Hiroyuki Sugiyama

Kikuo Mizutani

Chiaki Iizuka

Hidetoshi Yokochi

Yuichi Saito

Hiroyuki Tsuchihashi

Yoichi Yamaguchi

Mikio Yamamoto

Yasunobu Terao

Jun Ishii

Tomomi Iijima

Shinichiro Mano

Eizo Kurita

Kenji Takashima

Kimie Kamata

Hiroyuki Taguchi

Shinichi Itoh

Shoichi Dobashi

Naofumi Soga

Tetsuhiro Morita

Tatsuhisa Naraoka

Yoici Yamaguchi

Hiroyuki Tsuchihasi

Hitoshi Adachi

A sheet processing device in an embodiment includes a conveyance path, a stacker, a post processing section, and vertical alignment members. The conveyance path conveys sheets in a conveying direction and stacks the sheets. The stacker restricts a leading end of the conveyed sheets. The stacker is movable in the conveying direction. The post processing section processes the sheets further on an upstream side in the conveying direction than a position where the sheets are supported by the stacker. The vertical alignment members feed the sheets in the conveying direction toward the stacker. The vertical alignment members are enabled to come into contact with a bundle of the sheets supported by the stacker. The vertical alignment members are movable in the conveying direction integrally with the stacker.

Sheet processing device

According to one embodiment, a sheet conveying device includes a tray, a pickup roller, a movement mechanism, a holder, a biasing unit, and a detecting mechanism. The movement mechanism moves the tray between a raised position and a lowered position. The raised position is a position where sheets come into contact with the pickup roller. The holder holds the pickup roller so that the pickup roller is displaceable when pushed up by the sheets. The biasing unit applies a biasing force to the holder pushing down the pickup roller. The detecting mechanism detects when the sheets push up the pickup roller. The detecting mechanism includes a detection unit and a sensor. The detection unit is switchable between a reference position and a detection position according to displacement of the holder accompanying the movement of the tray. The sensor detects when the detection unit reaches the detection position.

Sheet conveying device

A sheet conveying device includes a sheet tray on which one or more sheets are placed, a pickup roller by which a sheet is picked up from the sheet tray, and an elevating mechanism. The elevating mechanism includes a shaft rotated by a motor, and a cam attached to the shaft and rotated together with the shaft to raise and lower the sheet tray with respect to the pickup roller. The sheet conveying device further includes a load applying mechanism contacting the shaft to apply a load thereto.

A sheet aligning mechanism includes first and second conveyance mechanisms disposed on first and second sides of a sheet conveyance path, respectively. A nip is formed between the first and second conveyance mechanisms. The first conveyance mechanism includes a first roller, a second roller, and a first conveyance belt wound around the first and second rollers. The first and second rollers are configured to rotate in a first direction along a sheet conveying direction for sheet conveyance, and stop rotation or rotate in a second direction opposite to the first direction for sheet alignment. The first conveyance belt includes an extended region between the first and second rollers in an extending direction inclined with respect to the sheet conveying direction, such that a width of the sheet conveyance path becomes narrower towards the nip in the sheet conveying direction.

Sheet aligning mechanism

According to one embodiment, a sheet feed device includes a first roller, a second roller, a torque limiter, a holder, and a driving unit. The first roller conveys a sheet in a first direction while being in contact with a first surface of the sheet. The second roller faces the first roller and is in contact with a second surface which is a back side of the first surface of the sheet in a state of sandwiching the sheet between the second roller and the first roller. The torque limiter imparts an anti-torque to the second roller in order to generate a force on the second surface in a direction opposite to the first direction. The holder rotatably supports the second roller. The driving unit moves the holder and biases the holder toward the first roller.

Sheet feed device

According to one embodiment, a sheet post-processing apparatus includes a guide member, a matching member, a post-processing mechanism, a support member, and a drive unit. The guide member has a loading surface on which a sheet is loaded in a standing state. The matching member supports a lower end of the sheet loaded on the guide member in a free raising and lowering manner. The post-processing mechanism performs post-processing on the sheet. The support member supports the matching member. The drive unit raises and lowers the support member. The matching member is configured to be raised and lowered with respect to the support member.

Sheet post-processing apparatus

According to one embodiment, an image processing apparatus includes an apparatus main body, a first rotating body, a second rotating body, and a connection member. The first rotating body is configured to be openable and closeable and provided in the apparatus main body. The second rotating body is provided in the first rotating body. The second rotating body is configured to be openable and closable from the first rotating body in the same direction as that of the first rotating body. The connection member is linear. The connection member is configured to connect the apparatus main body and the second rotating body to each other and to restrict a rotation angle of the second rotating body.

Image forming apparatus with restricted rotatable feed tray

According to one embodiment, the sheet conveying device includes a tray, an elevating mechanism, a conveyance roller, and a resistance member. The tray stacks a plurality of sheets. The elevating mechanism lifts and lowers the tray in the stacking direction of a plurality of sheets. The conveyance roller conveys the plurality of sheets in the conveyance direction from the upper side in the stacking direction. The resistance member comes into contact with the leading ends of the plurality of sheets in the conveyance direction. The resistance member imparts a sliding resistance larger than that of the sheet stacking surface of the tray to the leading ends of the plurality of sheets that are lifted and lowered by the elevating mechanism.

Sheet conveying device and image processing apparatus having a tray resistance member

According to one embodiment, a sheet conveying device includes a conveying path forming unit and an orthogonal movement permitting part. The conveying path forming unit forms a path for conveying a sheet. The orthogonal movement permitting part is provided in the conveying path. The orthogonal movement permitting part conveys the sheet along the conveying direction. The orthogonal movement permitting part allows the sheet to move in a conveying orthogonal direction orthogonal to the conveying direction.

Sheet conveying device and image forming apparatus

An image forming apparatus includes a paper tray, an elevating plate, a cam, and a shutter. The paper tray is configured to hold sheets. The elevating plate on the paper tray is arranged to ascend and descend between a descended position and an ascended position higher than the descended position. The cam is movable between a first position and a second position. The shutter includes a shielding portion. The shielding portion is located at a shielding position when the cam moves to the first position. The shielding position is a position that overlaps with a region in a height direction occupied by the cam at the second position. The shielding portion retracts from the shielding position when the cam has moved from the first position to the second position.

Image forming apparatus with movable cam

A post-processing apparatus according to an embodiment includes a processing tray, a post-processing section, a sensor, and a control section. A sheet supplied from an image forming apparatus is led into the processing tray through a lead-in path. The post-processing section applies post-processing to the sheet sent from the processing tray. The sensor detects an object passing a detection space in the lead-in path. The control section controls operation of the post-processing section based on a time in which the sensor detects the object.

Post-processing apparatus that detects an object

According to an embodiment, a sheet folding apparatus comprises a first roller, a second roller configured to be energized to the first roller, form a nip section together with the first roller, fold a sheet in half together with the first roller through the nip section and convey the sheet folded in half together with the first roller and a pressing force adjusting mechanism configured to be capable of increasing and decreasing a pressing force generated at the nip section. The pressing force adjusting mechanism causes a pressing force in a state of being conveying the sheet folded in half to be lower than that in a state of being folding the sheet in half.

Sheet folding mechanism and sheet processing apparatus

In accordance with an embodiment, a paper feed apparatus comprises a paper feed section, a separation section, an abutting section and a friction force variable section. The paper feed section feeds an image receiving medium. The separation section is arranged at the downstream side of the paper feed section in a conveyance direction of the image receiving medium. In a case in which a plurality of the image receiving media fed from the paper feed section is overlapped, the separation section separates the plurality of the image receiving media that is overlapped. The abutting section abuts against the image receiving medium fed from the paper feed section. The friction force variable section changes a friction force of the abutting section against the image receiving medium.

Paper feed apparatus and image forming apparatus

A sheet conveyance apparatus comprises a first sheet accommodation unit, a second sheet accommodation unit, a conveyance path and a controller. The first sheet accommodation unit and the second sheet accommodation unit are both provided with a movable guide plate which determines the size of an accommodated sheet. The conveyance path conveys a sheet between the first sheet accommodation unit and the second sheet accommodation unit. The controller carries out a control processing so as to change, in a case in which the accommodation size of the first sheet accommodation unit is changed, the accommodation size of the second sheet accommodation unit to be the same as that of the first sheet accommodation unit.

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Shizuoka-ken, Japan

Toshiaki Oshiro