Charging device and image forming apparatus

Patent metadata

Field	Value
Publication number	US-9785081-B1
Application number	US-201615225135-A
Country	US
Kind code	B1
Filing date	Aug 1, 2016
Priority date	Mar 29, 2016
Publication date	Oct 10, 2017
Grant date	Oct 10, 2017

Abstract

A charging device includes a charging member, a cleaning member, and first and second support members. The charging member rotates around a rotation shaft and charges of an image holding member. The rotation shaft of the charging member is disposed parallel to a rotation shaft of the image holding member. The cleaning member rotates around a rotation shaft and cleans the charging member. The rotation shaft of the cleaning member is disposed to incline with respect to the rotation shaft of the charging member. The first support member supports one end of the charging member and one end of the cleaning member. The second support member supports the other end of the charging member and the other end of the cleaning member, has the same configuration as a configuration of the first support member, and is disposed symmetrically with the first support member with the charging member interposed therebetween.

First claim

What is claimed is:

1. A charging device comprising:
a charging member that rotates around a rotation shaft of the charging member and that charges a surface of an image holding member by being in contact with the surface of the image holding member,
wherein the rotation shaft of the charging member is disposed parallel to a rotation shaft of the image holding member;

a cleaning member that rotates around a rotation shaft of the cleaning member and that cleans the charging member by being in contact with the charging member,
wherein the rotation shaft of the cleaning member is disposed to incline with respect to the rotation shaft of the charging member;

a first support member that supports one end portion of the charging member and that supports one end portion of the cleaning member; and
a second support member that supports the other end portion of the charging member, that supports the other end portion of the cleaning member, that has the same configuration as a configuration of the first support member, and that is disposed symmetrically with the first support member with the charging member interposed between the first and second support members,
the rotation shaft of the cleaning member being fixed so that an inclination angle and an inclination direction of the rotation shaft of the cleaning member with respect to the rotation shaft of the charging member are not changed in association with rotation of the cleaning member.

2. An image forming apparatus comprising:
the image holding member;
the charging device according to claim 1 that charges the surface of the image holding member;
a latent image forming device that forms a latent image on the surface of the charged image holding member;
a developing device that develops the latent image on the image holding member into a visible image;
a transfer device that transfers the visible image on the surface of the image holding member to a medium; and
a fixing device that fixes the visible image transferred to the medium.

Assignees

• Fuji Xerox Co Ltd

Inventors

• Mitsui Taro

Classifications

• G03G15/0258

  provided with means for the maintenance of the charging apparatus, e.g. cleaning devices, ozone removing devices G03G15/0225, G03G15/0291 takes precedence · CPC title

• G03G15/0225 Primary

  provided with means for cleaning the charging member · CPC title