# US 9,436,115 B2 · Cleaning member having a cleaning material spirally wound around a shaft material, charging apparatus, and image forming apparatus

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- Number: US 9,436,115 B2
- Document ID: US9436115B2
- Status: Granted
- Kind: B2
- Application number: 14/517,013
- Filed: 2014-10-17
- Published: 2015-11-19
- Granted: 2016-09-06
- Earliest claimed: 2014-05-16
- Assignees: Fuji Xerox Co., Ltd.
- Applicants: Fuji Xerox Co., Ltd.
- Inventors: Mikio Yamaguchi; Hiroki Ando
- Web page: https://patentgrep.com/patent/US9436115B2

## CPC

- G03G 15/0225: {provided with means for cleaning the charging member}
- G03G 15/0258: {provided with means for the maintenance of the charging apparatus, e.g. cleaning devices, ozone removing devices G03G15/0225, G03G15/0291 takes precedence}
- G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY

## Abstract

Provided is a cleaning member, including a shaft material that rotates about an axial center, and a cleaning material that is spirally wound around the shaft material, is driven to be rotated by a rotating member to be cleaned, cleans the member to be cleaned, and has the number of windings which is equal to or greater than 1 and less than 2 in a cleaning area where the member to be cleaned is cleaned.

## Claims

### Claim 1

A charging apparatus, comprising:
a charging member as a member to be cleaned that is driven to be rotated by a rotating image holding member and charges the image holding member; and
a cleaning member that is driven to be rotated by the rotating charging member and cleans the charging member, the cleaning member comprising:
a shaft material that rotates about an axial center; and
a cleaning material that is spirally wound around the shaft material, is driven to be rotated by a rotating member to be cleaned, cleans the member to be cleaned, and has the number of windings which is equal to or greater than 1 and less than 2 in a cleaning area where the member to be cleaned is cleaned, the cleaning material having a thickness and coupled to a surface of the shaft material and extending above the surface.

### Claim 2

An image forming apparatus, comprising:
an image holding member;
a charging member as a member to be cleaned that is driven to be rotated by a rotating image holding member and charges the image holding member;
a cleaning member that is driven to be rotated by the rotating charging member and cleans the charging member;
an exposure device that exposes the charged image holding member and forms an electrostatic latent image; and
a developing device that develops the electrostatic latent image formed on the image holding member,
wherein the cleaning member comprises:
a shaft material that rotates about an axial center; and
a cleaning material that is spirally wound around the shaft material, is driven to be rotated by a rotating member to be cleaned, cleans the member to be cleaned, and has the number of windings which is equal to or greater than 1 and less than 2 in a cleaning area where the member to be cleaned is cleaned, the cleaning material having a thickness and coupled to a surface of the shaft material and extending above the surface.

### Claim 3 (depends on 1)

The charging apparatus according to claim 1, wherein
the shaft material is molded with a resin material or a metal material.

### Claim 4 (depends on 2)

The image forming apparatus according to claim 2, wherein
the shaft material is molded with a resin material or a metal material.

### Claim 5 (depends on 1)

The charging apparatus according to claim 1, wherein
the number of windings is 1.

### Claim 6 (depends on 2)

The image forming apparatus according to claim 2, wherein
the number of windings is 1.