# US 2017/0283208 A1 · Sheet processing apparatus and image forming apparatus having the same

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- Number: US 2017/0283208 A1
- Document ID: US20170283208A1
- Status: Published application
- Kind: A1
- Application number: 15/630,429
- Filed: 2017-06-22
- Published: 2017-10-05
- Earliest claimed: 2013-12-27
- Assignees: Nisca Corporation; Canon Finetech Inc.
- Inventors: Satoru MATSUKI; Daiki KOMIYA; Kazuhito SHIMURA
- Web page: https://patentgrep.com/patent/US20170283208A1

## CPC

- B65H 37/04: for securing together articles or webs, e.g. by adhesive, stitching or stapling (adhering replacement to expiring web during change of web roll B65H19/18)
- B31F 5/001: {by stapling or riveting}
- B42C 1/12: Machines for both collating or gathering and permanently attaching together the sheets or signatures
- B65H 9/10: Pusher and like movable registers; Pusher or gripper devices which move articles into registered position
- B65H 9/101: {acting on the edge of the article}
- B65H 31/04: with movable end support arranged to recede as pile accumulates
- B65H 31/34: Apparatus for squaring-up piled articles
- B65H 43/00: Use of control, checking, or safety devices, e.g. automatic devices comprising an element for sensing a variable
- G03G 15/6541: {Binding sets of sheets, e.g. by stapling, glueing}
- G03G 15/6544: {Details about the binding means or procedure}
- B31F 1/07: Embossing {, i.e. producing impressions formed by locally deep-drawing, e.g. using rolls provided with complementary profiles}({B31F1/128 takes precedence;} corrugating B31F1/20; embossing in combination with printing B41F19/02, B41M1/24; typewriters for embossing B41J3/38; stamping in combination with deforming B41K3/36)
- B31F 5/02: by crimping or slotting {or perforating}
- B65H 2301/3621: perpendicularly to a first direction in which the material is already in registered position
- B65H 2801/27: Devices located downstream of office-type machines
- B65H: HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B31F: MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER (making layered products not composed wholly of paper or cardboard B32B)
- B42C: BOOKBINDING (cutting or perforating machines, devices or tools B26; folding sheets or webs B31F; ornamenting books B44)
- G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY

## Abstract

A sheet processing apparatus includes a stack portion on which sheets conveyed in a conveying direction are stacked, a first regulating portion regulating a position of a sheet bundle stacked on the stack portion in a crossing direction crossing the conveying direction by contacting an end of the sheet bundle in the crossing direction, a second regulating portion regulating a position of the sheet bundle in the conveying direction by contacting an end of the sheet bundle in the conveying direction, a first binding device which moves in the crossing direction and binds by a staple, a second binding device which moves and binds without a staple, and a controller which controls the first and second binding devices. The first and second binding devices bind the corner portion of the sheet bundle.

## Claims

### Claim 1

A sheet processing apparatus, comprising:
a stack portion on which sheets conveyed in a conveying direction are stacked;
a first regulating portion which is configured to regulate a position of a sheet bundle stacked on the stack portion, the first regulating portion regulating the position of the sheet bundle in a crossing direction crossing the conveying direction by contacting an end of the sheet bundle in the crossing direction;
a second regulating portion which is configured to regulate a position of a sheet bundle, stacked on the stack portion, in the conveying direction by contacting an end of the sheet bundle in the conveying direction;
a first binding device which is configured to move in the crossing direction so that the first binding device moves from one side of the sheet processing apparatus to other side of the sheet processing apparatus and moves from the other side to the one side, and which is configured to bind, by a staple, a corner portion, of a sheet bundle, including an end, where the first regulating portion has contacted, on the one side of the sheet bundle and an end, where the second regulating portion has contacted, of the sheet bundle in the conveying direction;
a second binding device which is configured to move, and which is configured to bind, without a staple, a corner portion, of a sheet bundle, including an end, where the first regulating portion has contacted, on the one side of the sheet bundle and an end, where the second regulating portion has contacted, of the sheet bundle in the conveying direction; and
a controller which is configured to cause, in case that the first binding device binds a corner portion, of a sheet bundle, including an end, where the first regulating portion has contacted, on the one side of the sheet bundle and an end, where the second regulating portion has contacted, of the sheet bundle in the conveying direction, the second binding device to be positioned outside the sheet bundle without overlapping the first binding device, and
which is configured to cause, in case that the second binding device binds a corner portion, of a sheet bundle, including an end, where the first regulating portion has contacted, on the one side of the sheet bundle and an end, where the second regulating portion has contacted, of the sheet bundle in the conveying direction, the first binding device to be positioned at the other side relative to an end on the one side of the sheet bundle and at the other side relative to the second binding device.

### Claim 2 (depends on 1)

The sheet processing apparatus according to claim 1, wherein the first binding device binds an end, where the second regulating portion has contacted, of a sheet bundle at several positions in the crossing direction.

### Claim 3 (depends on 1)

The sheet processing apparatus according to claim 1, wherein in case that the second binding device binds a corner portion, of a sheet bundle, including an end, where the first regulating portion has contacted, on the one side of the sheet bundle and an end, where the second regulating portion has contacted, of the sheet bundle in the conveying direction, the controller causes the first binding device to be positioned on the other side relative to an end on the other side of the sheet bundle.

### Claim 4 (depends on 1)

The sheet processing apparatus according to claim 1, wherein the second binding device is configured to move in the crossing direction, and
in case that the first binding device binds a corner portion, of a sheet bundle, including an end, where the first regulating portion has contacted, on the one side of the sheet bundle and an end, where the second regulating portion has contacted, of the sheet bundle in the conveying direction, the controller causes the second binding device to be positioned on the one side relative to an end of the one side of the sheet bundle, and on the one side relative to the first binding device.

### Claim 5 (depends on 1)

The sheet processing apparatus according to claim 1, wherein a distance where the first binding device moves is longer than a distance where the second binding device moves.

### Claim 6 (depends on 1)

The sheet processing apparatus according to claim 1, wherein the second regulating portion regulates a sheet bundle in the conveying direction by contacting an end, of the sheet bundle stacked on the stack portion, at an upstream side in the conveying direction.

### Claim 7 (depends on 6)

The sheet processing apparatus according to claim 6, further comprising:
a discharge portion which is configured to discharge a sheet bundle on the stack portion from the stack portion by moving the sheet bundle in the conveying direction.

### Claim 8

An image forming apparatus, comprising:
an image forming device for forming an image on a sheet,
a stack portion on which the sheet conveyed from the image forming device in a conveying direction is stacked;
a first regulating portion which is configured to regulate a position of a sheet bundle stacked on the stack portion, the first regulating portion regulating the position of the sheet bundle in a crossing direction crossing the conveying direction by contacting an end of the sheet bundle in the crossing direction;
a second regulating portion which is configured to regulate a position of a sheet bundle, stacked on the stack portion, in the conveying direction by contacting an end of the sheet bundle in the conveying direction;
a first binding device which is configured to move in the crossing direction so that the first binding device moves from one side of the sheet processing apparatus to other side of the sheet processing apparatus and moves from the other side to the one side, and which is configured to bind, by a staple, a corner portion, of a sheet bundle, including an end, where the first regulating portion has contacted, on the one side of the sheet bundle and an end, where the second regulating portion has contacted, of the sheet bundle in the conveying direction;
a second binding device which is configured to move, and which is configured to bind, without a staple, a corner portion, of a sheet bundle, including an end, where the first regulating portion has contacted, on the one side of the sheet bundle and an end, where the second regulating portion has contacted, of the sheet bundle in the conveying direction; and
a controller which is configured to cause, in case that the first binding device binds a corner portion, of a sheet bundle, including an end, where the first regulating portion has contacted, on the one side of the sheet bundle and an end, where the second regulating portion has contacted, of the sheet bundle in the conveying direction, the second binding device to be positioned outside the sheet bundle without overlapping the first binding device, and
which is configured to cause, in case that the second binding device binds a corner portion, of a sheet bundle, including an end, where the first regulating portion has contacted, on the one side of the sheet bundle and an end, where the second regulating portion has contacted, of the sheet bundle in the conveying direction, the first binding device to be positioned at the other side relative to an end on the one side of the sheet bundle and at the other side relative to the second binding device.