# US 10,870,134 B2 · Peeling device and image forming apparatus

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- Number: US 10,870,134 B2
- Document ID: US10870134B2
- Status: Granted
- Kind: B2
- Application number: 16/519,317
- Filed: 2019-07-23
- Published: 2020-09-24
- Granted: 2020-12-22
- Earliest claimed: 2019-03-22
- Assignees: Fuji Xerox Co., Ltd.
- Applicants: Fuji Xerox Co., Ltd.
- Inventors: Yuichi Omori; Noriaki Kojima
- Web page: https://patentgrep.com/patent/US10870134B2

## CPC

- B08B 1/20: Cleaning of moving articles, e.g. of moving webs or of objects on a conveyor
- G03G 15/1665: {by introducing the second base in the nip formed by the recording member and at least one transfer member, e.g. in combination with bias or heat}
- G03G 15/16: of a toner pattern, e.g. a powder pattern {, e.g. magnetic transfer}
- G03G 21/10: Collecting or recycling waste developer
- G03G 2215/1647: Cleaning of transfer member
- G03G 2221/1627: Details concerning the cleaning process
- B08B: CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY

## Abstract

A peeling device includes a peeling member and a cover member. The peeling member peels a recording medium, to which an unfixed developer has been transferred from an image holding member, from the image holding member. The leading end of the peeling member contacts the image holding member. The cover member covers a surface of the peeling member with a gap interposed between the peeling member and the cover member. The surface of the peeling member includes at least the leading end of the peeling member, and includes at least a surface of the peeling member on the side opposite to the image holding member.

## Claims

### Claim 1

A peeling device comprising:
a peeling member that peels a recording medium, to which an unfixed developer has been transferred from an image holding member, from the image holding member, a leading end of the peeling member contacting the image holding member;
a cover member that covers a surface of the peeling member with a gap interposed between the peeling member and the cover member, the surface of the peeling member including at least the leading end of the peeling member and including at least a surface of the peeling member on a side not facing the image holding member; and
a restriction unit that restricts movement of the cover member toward the downstream side in the transport direction, in which the recording medium is transported, to a distance determined in advance,
wherein the cover member is supported so as to be movable toward the downstream side in a transport direction in which the recording medium is transported,
wherein the restriction unit includes a restriction protrusion formed to project toward a side opposite to a leading end of the cover member.

### Claim 2 (depends on 1)

The peeling device according to claim 1,
wherein the cover member is supported separately from the peeling member.

### Claim 3 (depends on 1)

The peeling device according to claim 1,
wherein the cover member and the peeling member are supported on an identical support shaft.

### Claim 4 (depends on 1)

The peeling device according to claim 1,
wherein a leading end of the cover member is bent in a transport direction for the recording medium.

### Claim 5 (depends on 1)

The peeling device according to claim 1,
wherein a leading end of the cover member extends more toward a transport side for the recording medium than the leading end of the peeling member.

### Claim 6 (depends on 1)

The image forming apparatus according to claim 1, further comprising a spring member configured to urge the peeling member into to contact with the image holding member.

### Claim 7

A peeling device comprising:
a peeling member that peels a recording medium, to which an unfixed developer has been transferred from an image holding member, from the image holding member, a leading end of
the peeling member contacting the image holding member; and
a cover member that covers a surface of the peeling member with a gap interposed between the peeling member and the cover member, the surface of the peeling member including at least the leading end of the peeling member and including at least a surface of the peeling member on a side not facing the image holding member,
wherein the cover member includes a projecting portion provided on a surface of the cover member that faces a transport path for the recording medium to project along a transport direction for the recording medium.

### Claim 8

A peeling device comprising:
a peeling member that peels a recording medium, to which an unfixed developer has been transferred from an image holding member, from the image holding member,
a leading end of the peeling member contacting the image holding member; and
a cover member that covers a surface of the peeling member with a gap interposed between the peeling member and the cover member, the surface of the peeling member including at least the leading end of the peeling member and including at least a surface of the peeling member on a side not facing the image holding member,
wherein a middle portion of the cover member projects more toward a transport path for the recording medium than an end portion of the cover member in a direction that is orthogonal to a transport direction for the recording medium.

### Claim 9

A peeling device comprising:
a peeling member that peels a recording medium, to which an unfixed developer has been
transferred from an image holding member, from the image holding member, a leading end of the peeling member contacting the image holding member; and
a cover member that covers a surface of the peeling member with a gap interposed between the peeling member and the cover member, the surface of the peeling member including at least the leading end of the peeling member and including at least a surface of the peeling member on a side not facing the image holding member,
wherein the cover member is formed with an escape portion that escapes toward a side opposite to a direction of contact by the recording medium when the escape portion is contacted by the recording medium.
