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Developing device

A developing device and developer technology, applied in electrography, optics, instruments, etc., can solve problems such as tooth top damage and developer box installation difficulties

Active Publication Date: 2011-04-06
BROTHER KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In that case, since the gear teeth of the drive shaft member and the gear teeth of the engagement groove cannot be engaged, it becomes difficult to smoothly mount the developer cartridge to the casing.
Therefore, the drive shaft member and the individual tooth crests engaging the grooves may be damaged.

Method used

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Examples

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Embodiment Construction

[0023] Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings. (image forming equipment)

[0024] As shown in FIG. 1, an image forming apparatus according to an exemplary embodiment of the present invention includes: a paper feeding unit 4 for feeding paper 3 into the inside of a body casing 2, and a unit for forming an image on the fed paper 3. An image forming unit 5, and a paper discharge section 6 for discharging the paper 3 on which an image is formed. (1) body shell

[0025] The body case 2 is box-shaped, an opening is formed on one side wall of the body case 2, and a front cover 7 for opening and closing the opening is provided. By opening the front cover 7, a process cartridge 17 (described later) as an example of a developing device can be attached to or detached from the body casing 2 in the direction of a bold line arrow in the drawing.

[0026] The body case 2 is equipped with a developer sensor (not sh...

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PUM

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Abstract

A developing device includes a developing housing that supports a developer carrier, and a developer cartridge. The developer cartridge includes a cartridge housing that is configured to accommodate developer, an agitator that is provided in the cartridge housing and is configured to agitate the developer by a driving force, and a transmission gear that is configured to transmit the driving force to the agitator. The developing housing comprises a moving gear that is movable between a meshing position in which the moving gear meshes with the transmission gear and a spaced-apart position in which the moving gear is spaced apart from the meshing position. The moving gear is configured to transmit the driving force from the transmission gear to the agitator.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to Japanese Patent Application No. 2007-166673 filed on June 25, 2007, the entire subject matter of which is incorporated herein by reference. technical field [0003] The present invention relates to a developing device attachable to an image forming apparatus. Background technique [0004] As a developing device employing the related art, for example, JP-A-10-240008 describes a process cartridge in which a developing roller and a developer cartridge are mounted in a casing, and the developer cartridge is detachable from the casing. [0005] The housing includes a drive shaft member for receiving driving force from a motor or the like. An agitating portion for agitating the developer in the developer cartridge is accommodated inside the developer cartridge, and an engaging groove is provided at an end of a rotation shaft of the agitating portion. When the developer cartridge is attac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G15/08
CPCG03G21/1821G03G2215/085G03G2221/1657G03G2215/0685G03G21/1857G03G15/0868G03G15/0886
Inventor 森启城
Owner BROTHER KOGYO KK
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