# US 2016/0355359 A1 · Image-forming apparatus

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- Number: US 2016/0355359 A1
- Document ID: US20160355359A1
- Status: Published application
- Kind: A1
- Application number: 15/159,081
- Filed: 2016-05-19
- Published: 2016-12-08
- Earliest claimed: 2015-06-03
- Assignees: Konica Minolta, Inc.
- Applicants: Konica Minolta, Inc.
- Inventors: Satoshi HAMAYA
- Web page: https://patentgrep.com/patent/US20160355359A1

## CPC

- B65H 5/062: {between rollers or balls}
- B41J 13/103: {for the sheet feeding section}
- B65H 9/002: {changing orientation of sheet by only controlling movement of the forwarding means, i.e. without the use of stop or register wall}
- B65H 9/006: {the stop being formed by forwarding means in stand-by}
- B65H 9/008: {the stop being formed by reversing the forwarding means}
- G03G 15/6564: {with correct timing of sheet feeding}
- G03G 15/6567: {for deskewing or aligning}
- B65H 2404/1424: moving in parallel to their axis
- B65H 2404/144: with relative movement of the rollers to / from each other
- B65H 2404/723: formed of forwarding means
- G03G 15/234: {by inverting and refeeding the image receiving material with an image on one face to the recording member to transfer a second image on its second face, e.g. by using a duplex tray; Details of duplex trays or inverters}
- G03G 2215/0135: the linear arrangement being vertical
- B65H: HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY

## Abstract

An image-forming apparatus contains an image-forming portion, a first conveying portion that is arranged at an upstream side of the image-forming portion along a sheet conveying direction, a second conveying portion that is arranged at an upstream side of the first conveying portion along the sheet conveying direction and a control portion. The control portion controls the first conveying portion to move a pair of registration rollers along a direction that is orthogonal to the sheet conveying direction while the pair of registration rollers nips the sheet when conveying the sheet to the image-forming portion. The control portion controls the second conveying portion to move one of the pair of conveying rollers along the direction that is orthogonal to the sheet conveying direction while the pair of conveying rollers does not nip the sheet.

## Claims

### Claim 1

An image-forming apparatus comprising:
an image-forming portion that forms an image on a sheet;
a first conveying portion that is arranged at an upstream side of the image-forming portion along a sheet conveying direction and includes a pair of conveying members;
a second conveying portion that is arranged at an upstream side of the first conveying portion along the sheet conveying direction and includes a pair of conveying members; and
a control portion that controls the first conveying portion to move the pair of conveying members of the first conveying portion along a direction that is orthogonal to the sheet conveying direction while the pair of conveying members of the first conveying portion nips the sheet, when conveying the sheet to the image-forming portion, and controls the second conveying portion to move at least one of the pair of conveying members of the second conveying portion along the direction that is orthogonal to the sheet conveying direction while the pair of conveying members of the second conveying portion inhibits the sheet from being nipped.

### Claim 2 (depends on 1)

The image-forming apparatus according to claim 1 wherein the control portion sets start time of the movement of at least one of the pair of conveying members of the second conveying portion along the direction that is orthogonal to the sheet conveying direction to be before start time of the movement of the pair of conveying members of the first conveying portion along the direction that is orthogonal to the sheet conveying direction.

### Claim 3 (depends on 1)

The image-forming apparatus according to claim 1 wherein the control portion sets an amount of the movement of at least one of the pair of conveying members of the second conveying portion along the direction that is orthogonal to the sheet conveying direction to be larger than an amount of the movement of the pair of conveying members of the first conveying portion along the direction that is orthogonal to the sheet conveying direction.

### Claim 4 (depends on 1)

The image-forming apparatus according to claim 1 wherein the second conveying portion is arranged on a curved portion of a conveying path.

### Claim 5 (depends on 1)

The image-forming apparatus according to claim 1 wherein the control portion sets an amount of the movement of at least one of the pair of conveying members of the second conveying portion along the direction that is orthogonal to the sheet conveying direction based on a paper weight of the sheet, species of sheet or a size of the sheet.

### Claim 6 (depends on 1)

The image-forming apparatus according to claim 1 wherein the first conveying portion includes a pair of registration rollers.

### Claim 7 (depends on 1)

The image-forming apparatus according to claim 1 wherein the pair of conveying members of the second conveying portion includes a driving roller and a driven roller, and the control portion controls the second conveying portion to move the driving roller along the direction that is orthogonal to the sheet conveying direction.

### Claim 8 (depends on 1)

The image-forming apparatus according to claim 1 wherein the pair of conveying members of the second conveying portion includes a driving roller and a driven roller, and the control portion controls the second conveying portion to move the driven roller along the direction that is orthogonal to the sheet conveying direction.