Developing device and image forming device including the developing device

A developing device and image technology, applied in the fields of image forming devices and developing devices, can solve the problems of lowering the performance of charging toner and achieve the effect of stable developer amount

Active Publication Date: 2019-08-16
KYOCERA DOCUMENT SOLUTIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the carrier that is stirred together with the toner in the developing container deteriorates as the stirring frequency increases, and as a result, the charge imparting performance of the carrier to the toner gradually decreases.

Method used

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  • Developing device and image forming device including the developing device
  • Developing device and image forming device including the developing device
  • Developing device and image forming device including the developing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0071] exist figure 1 In the illustrated color printer 100 , changes in the amount of developer in the developing devices 3 a to 3 d were studied when the conveying speed of the developer, the toner density, and the absolute humidity were changed. In addition, the test was performed in the cyan image forming part Pa including the photosensitive drum 1 a and the developing device 3 a.

[0072] As a test method, the Figure 5As shown, the developing device 3a in which the second screw blade 44a, the restricting portion 52, the discharge blade 53, the first circular plate 55, and the second circular plate 57 are disposed on the rotating shaft 44b of the second stirring screw conveyor 44 is Invention 1 and Invention 2. In addition, will be as Image 6 The developing device 3a in which the second screw blade 44a, the restricting portion 52, the discharge blade 53, and the second circular plate 57 are arranged on the rotation shaft 44b is shown as a comparative example.

[0073]...

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PUM

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Abstract

The present invention provides a developing device including a developing container, a first agitating member, a second agitating member, and a developer carrier, and an image forming apparatus including the developing device. The second agitating member includes: a second conveying blade for conveying the developer in the second conveying chamber; The downstream of the second conveying blade in the conveying direction of the developer is formed adjacently; the discharge blade conveys the developer in the same direction as the second conveying blade, and discharges the developer from the developer discharge port, with respect to the second conveying blade. downstream of the restricting portion in the conveying direction of the developer in the conveying chamber; a first circular plate formed between the second conveying blade and the restricting portion; and a second circular plate formed between the restricting portion and the discharge blade .

Description

technical field [0001] The present invention relates to a developing device used in image forming devices such as copiers, printers, facsimile machines, and digital multi-function machines using electrophotography, and an image forming device equipped with the developing device. A developing device that discharges a two-component developer composed of a carrier and discharges the remaining developer, and an image forming apparatus including the developing device. Background technique [0002] In an image forming apparatus, a latent image formed on an image carrier made of a photoreceptor or the like is developed by a developing device to be visualized as a toner image. As one type of such a developing device, a two-component developing system using a two-component developer is employed. Such a developing device accommodates a two-component developer (hereinafter also referred to as developer) consisting of a carrier and toner in a developing container, is provided with a de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G15/08
CPCG03G15/0886G03G15/0889G03G15/0891G03G15/0844G03G15/0893G03G2215/083G03G15/0865
Inventor 末浪浩二
Owner KYOCERA DOCUMENT SOLUTIONS INC
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