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Developing cartridge and image forming device

A developing cartridge and image technology, applied in the direction of electric recording process applying charge pattern, equipment for applying electric recording process of charge pattern, electric recording technique, etc., can solve problems such as insufficient developer and latent image cannot be properly developed, etc.

Active Publication Date: 2007-07-04
BROTHER KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Next, the reduction in pressing force results in insufficient developer supply to the image carrier, so that the latent image on the image carrier cannot be properly developed

Method used

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  • Developing cartridge and image forming device
  • Developing cartridge and image forming device
  • Developing cartridge and image forming device

Examples

Experimental program
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Embodiment Construction

[0098] The various aspects summarized above can be implemented in different forms. The description given below is intended to illustrate various combinations and configurations of implementing various aspects. It is to be understood that the various aspects described are examples only and that other aspects and / or embodiments may be utilized and structural and functional modifications may be made without departing from the scope of the present disclosure.

[0099]It should be noted that various connections between elements are given in the following description. Unless otherwise specified, the above connections may generally be direct or indirect, and this description is not intended to limit this aspect.

[0100] 1. Overall structure of an exemplary color laser printer

[0101] FIG. 1 is a side sectional view showing an exemplary embodiment of a color laser printer as an example of a color image forming apparatus.

[0102] The color laser printer 1 is a horizontal tandem c...

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PUM

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Abstract

A developing cartridge (27) that maintains a pressing condition to press a developer carrier (39) against the image carrier (29) is described. The developing cartridge (27) may include a coil spring (218) that presses the developer carrier (39) against the image carrier (29). The coil spring (218) may include a handle (214) that transmits a pressing force to the coil spring (218) via the contacting member (217). By doing so, every time the developing cartridge (27) is replaced, a new coil spring (218) and handle (214) can be provided for the color laser printer (1) with the developing cartridge (27) attached. Therefore, a constant pressure by the coil spring (218) can be continuously maintained. Thus, a preferable pressure condition of the developer carrier (39) against the image carrier (29) can be continuously maintained.

Description

[0001] Related application information [0002] This application claims priority based on Japanese Patent Application No. 2005-376113 filed on December 27, 2005 and Japanese Patent Application No. 2006-139484 filed on May 18, 2006, the contents of which are directly incorporated herein by reference. Background technique [0003] The tandem image forming apparatus is used to print images on various media. A plurality of image carriers are usually arranged in parallel in the image forming device in the horizontal direction, and each carrier corresponds to one of yellow, magenta, cyan, and black. In a cascade image forming apparatus, toner images of each color are formed on each image carrier almost simultaneously. Then, the toner image of each color is transferred from each image carrier to paper that passes sequentially over the image carrier. Therefore, a color image can be formed at almost the same speed as a monochr...

Claims

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Application Information

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IPC IPC(8): G03G15/08G03G15/00G03G21/18G03G21/00
Inventor 神村直哉五十岚宏
Owner BROTHER KOGYO KK
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