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Developing device, processing unit and image forming device

A developing device and developer technology, which are applied in the direction of electric recording process applying charge pattern, equipment and apparatus of electric recording process applying charge pattern, etc. problem, to achieve the effect of inhibiting adhesion

Active Publication Date: 2020-06-19
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in such a developing device, due to frictional heat generated between the restricting blade and the rotating developing roller, there is a problem that the toner is fused, and the melted toner sticks to the restricting blade.

Method used

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  • Developing device, processing unit and image forming device
  • Developing device, processing unit and image forming device
  • Developing device, processing unit and image forming device

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0013] Embodiments of the present invention will be described below with reference to the drawings. In addition, in the following description and each drawing, as long as components such as members or components having the same function or shape can be distinguished, the same reference numerals are assigned to simplify or omit the description once again. illustrate.

[0014] First, with figure 1 The basic configuration of the image forming apparatus will be described using the illustrated color printer as an example. However, the present invention is not limited thereto, and it goes without saying that it can also be applied to image forming apparatuses such as monochrome printers or other printers, copiers, facsimile machines, or their multifunctional peripherals.

[0015] figure 1 The illustrated color printer 100 is composed of an image forming unit 1 , a recording medium supply unit 2 , a transfer unit 3 , a fixing unit 4 , a recording medium discharge unit 5 , and the ...

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PUM

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Abstract

The present invention relates to a developing device, a processing unit and an image forming device, and is used to solve the problem of developer sticking to a developer restricting member. The developing device includes a rotatable developer carrying body (30) that places the developer T supplied to the latent image carrier on the surface, and is in contact with the surface of the developer carrying body (30) and carries the developer. A developer restricting member (32) that predeterminedly restricts the amount of developer (T) placed on the body (30) is located at a predetermined restricting clip as a contact portion between the developer restricting member (32) and the developer carrying body (30). The holding portion (N) is located near the downstream side of the downstream end e in the rotation direction of the developer carrying body, and is located at 10 points on the facing surface (32a) of the developer restricting member (32) with respect to the developer carrying body (30) When the average roughness is Rzjis and the volume average particle diameter of the developer (T) is Dv, the ratio of Rzjis to Dv is 3.5% or less.

Description

technical field [0001] The present invention relates to a developing device, a processing unit including the developing device, and an image forming device. Background technique [0002] In an electrophotographic image forming apparatus such as a copier, a printer, a facsimile, or their multifunction peripherals, a one-component developing system using only toner as a developer without using a carrier is known. . [0003] Generally, in a developing device of a one-component developing system, a regulating blade as a developer regulating member is disposed so as to be in contact with the surface of a developing roller as a developer carrier. The toner loaded on the developing roller is regulated to a desired thickness by the prescribed regulation nip part of the contact portion where the regulation blade and the developing roller contact as the developing roller rotates, and moves toward the photoreceptor. to supply. [0004] However, in such a developing device, there is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G15/08
CPCG03G15/0812
Inventor 长友雄司藤田哲丸辻真人加来佑太郎
Owner RICOH KK