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Development device and image forming apparatus including the same

A developing device and developing roller technology, which is applied in the direction of electric recording process applying charge pattern, equipment for applying electric recording process of charge pattern, electric recording technique, etc. Problems such as bad images

Active Publication Date: 2014-05-28
KYOCERA DOCUMENT SOLUTIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structure that vibrates the drive motor itself may cause the main body of the developing device or image forming device to vibrate due to the vibration of the drive motor.
Therefore, there may be a problem of poor image and noise due to vibration

Method used

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  • Development device and image forming apparatus including the same
  • Development device and image forming apparatus including the same
  • Development device and image forming apparatus including the same

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach ）

[0037] figure 1It is a schematic cross-sectional view of an image forming apparatus 100 equipped with a developing device 3 a , a developing device 3 b , a developing device 3 c , and a developing device 3 d according to the first embodiment of the present invention. figure 1 The illustrated image forming apparatus 100 is a tandem color image forming apparatus. Hereinafter, a color printer will be described by taking the image forming apparatus 100 as an example.

[0038] In the main body of the color printer 100, four image forming sections Pa, Pb, Pc, and Pd are located upstream from the rotation direction of the intermediate transfer belt 8 ( figure 1 (middle is the right) to start setting in sequence. The image forming unit Pa to the image forming unit Pd are provided corresponding to images of four different colors (cyan, magenta, yellow, and black). The image forming section Pa, the image forming section Pb, the image forming section Pc, and the image forming section ...

no. 2 Embodiment approach ）

[0103] Figure 13 It is a side cross-sectional view of a developing device 3 a according to a second embodiment of the present invention. Figure 14 yes Figure 13A partial enlarged view of the periphery of the trimming scraper 33 in . In this embodiment, the developing device 3 a includes a positioning mechanism. The positioning mechanism positions the cover 37 relative to the dressing blade 33 . Also, the distance L between the facing surface 37 d of the sleeve cover 37 facing the toner supply roller 30 and the edge portion 33 a (tip portion) of the trimming blade 33 is kept constant. The configuration of the other parts of the developing device 3 a and the mechanism for vibrating the film member 40 are the same as those of the first embodiment, and therefore description thereof will be omitted here.

[0104] The distance L is very important in the case of recovering the toner dropped from the film member 40 onto the finishing blade 33 . When the distance L is too large...

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PUM

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Abstract

The present invention provides a development device and an image forming apparatus including the same. A film member in the development device can vibrate with respect to an internal wall in the development device. An idler gear in the development device includes a projection and is reciprocally movable between a first position and a second position. The first position is a position where the projection is apart from an end edge of the film member in response to a rotation of a toner supply roller when image formation is performed. The second position is a position where the projection overlaps with the end edge of the film member in response to a reverse rotation of the toner supply roller when image formation is not performed. The projection causes the film member to vibrate by intermittently coming into contact with the end edge of the film member along with a rotation of the idler gear at the second position.

Description

technical field [0001] The present invention relates to a developing device that supplies toner to an image carrier, and an electrophotographic image forming device including the developing device. Background technique [0002] An electrophotographic image forming apparatus irradiates the peripheral surface of an image carrier (photosensitive drum) with light based on image information read from a document image or image information transmitted from an external device such as a computer to form an electrostatic latent surface. picture. The image forming device supplies toner from the developing device to the electrostatic latent image, forms a toner image, and transfers the toner image to paper. The transfer-processed paper is discharged outside after the toner image is fixed. [0003] A developing method using a dry toner in an image forming apparatus in an electrophotographic process will be described below. A two-component developer is used in the developing method. A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/08
CPCG03G15/0806G03G15/0808G03G2215/0132
Inventor 山根直树藤村武志
Owner KYOCERA DOCUMENT SOLUTIONS INC
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