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Developing device and image forming device having same

A developing device and developer technology, which are 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 the problems of low charge quantity, fog, and image density reduction, etc. , to achieve the effect of uniform charge distribution and suppress the reduction of image density

Active Publication Date: 2018-06-01
KYOCERA DOCUMENT SOLUTIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] If printing with a high printing rate or continuous printing is performed in this state, since the initial toner with a relatively low charge amount is supplied to the developing device in a short time, toner with a flat charge amount distribution is supplied. To the developing roller, resulting in image defects such as reduced image density and fog

Method used

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  • Developing device and image forming device having same
  • Developing device and image forming device having same
  • Developing device and image forming device having same

Examples

Experimental program
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Embodiment Construction

[0021] Embodiments of the present invention will be described below with reference to the drawings. figure 1 It is a schematic cross-sectional view showing the structure of an image forming apparatus 100 including a developing device 4 according to an embodiment of the present invention. In the image forming apparatus (for example, a monochrome printer) 100, when an image forming operation is performed, in the image forming unit P in the main body of the apparatus, based on document image data transmitted from a personal computer (PC) not shown in the figure, An electrostatic latent image is formed, and toner is attached to the electrostatic latent image by the developing device 4 to form a toner image. The developing device 4 is supplied with toner from a toner container 5 . In the image forming apparatus 100 described above, while the photosensitive drum 1 is figure 1 The image forming process for the photosensitive drum 1 is performed while turning in the clockwise direct...

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Abstract

A developing device includes a developing container, a first agitating / conveying member, a second agitating / conveying member, a developer supply member, a supply port, and a supply section. The developing container is separated into a developer supply passage, a first conveying chamber, and a second conveying chamber, which are arranged substantially parallel to one another. The supply section is disposed between the developer supply passage and the first conveying chamber, and through the supply section, the developer is supplied from the developer supply passage into the first conveying chamber. The supply section is disposed upstream from a downstream-side end portion of the developer supply passage but downstream from the supply port with respect to a developer-conveying direction of the developer supply passage, and via the supply section, the developer supply member supplies the developer into the first conveying chamber in a direction opposite to a developer-conveying direction of the first conveying chamber.

Description

technical field [0001] The present invention relates to a developing device installed in an image forming apparatus such as a copier, a facsimile, and a printer, and an image forming apparatus equipped with the same, and particularly relates to a method for suppressing density reduction and fogging when replenishing toner. Background technique [0002] Conventionally, as a development method using a dry toner in an image forming apparatus using an electrophotography method, there are known a one-component development method and a two-component development method. The one-component development method does not use a carrier. , the two-component development method uses a two-component developer that uses a magnetic carrier to charge a non-magnetic toner, and the image carrier ( Electrostatic latent image development on photoreceptors). [0003] In the developing device, toner is continuously consumed due to the developing operation. Therefore, in order to replenish the toner ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G15/08
CPCG03G15/0893G03G15/0889
Inventor 仓增浩二山中达也藤井宏和
Owner KYOCERA DOCUMENT SOLUTIONS INC
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