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Developing device and image forming apparatus

一种显影装置、图像的技术，应用在应用电荷图形的电记录工艺的设备、应用电荷图形的电记录工艺、电记录术等方向，能够解决阻碍色调剂供应、色调剂供应量差异增加等问题，达到可追踪性增强的效果

Active Publication Date: 2017-08-18
FUJIFILM BUSINESS INNOVATION CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the difference between the supplied amount of toner and the required amount increases, and this may hinder the required toner supply

Method used

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  • Developing device and image forming apparatus
  • Developing device and image forming apparatus
  • Developing device and image forming apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] Configuration of Image Forming Device

[0029] figure 1 An exemplary configuration of an image forming apparatus to which the exemplary embodiment is applied is illustrated.

[0030] figure 1 The image forming apparatus 10 illustrated in includes: a transport unit 12 that transports a sheet P; four image forming units 20 each forming a toner image TZ; a transfer unit 30 that transfers the toner image TZ onto the sheet P; The fixing unit 40 fixes the toner image TZ on the paper P. The four image forming units 20 have a similar structure, and use different colors of toners (for example, four colors: yellow, cyan, magenta, and black). The image forming apparatus 10 also includes a controller 50 that controls the operations of the various components and units. Herein, the paper P is an example of a recording medium, and the toner image TZ is an example of a developer image.

[0031] Each of the image forming units 20 includes: a photoreceptor 22 serving as an example o...

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PUM

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Abstract

The invention relates to a developing device and an image forming apparatus. The developing device includes a storage unit that stores developer to be used to form a developer image on an image carrier, the developer containing toner and carrier, an auxiliary storage unit that stores the developer and is connected to the storage unit via a first opening from which the developer is supplied into the storage unit and a second opening from which the developer in the storage unit is taken in, a first transport member provided at the first opening to transport the developer in the auxiliary storage unit into the storage unit, a second transport member provided at the second opening to transport the developer in the storage unit into the auxiliary storage unit, and a supply unit that has an opening opposed to the first transport member and supplies toner to the developer transported from the auxiliary storage unit into the storage unit.

Description

technical field [0001] The present invention relates to a developing device and an image forming apparatus. Background technique [0002] Japanese Unexamined Patent Application Publication No. 2011-002526 discloses a developing device in which a developer is agitated and conveyed by a first rotary conveyance body and a second rotary conveyance body. A developer accumulating portion in which the developer is accumulated is disposed above the second rotary conveyance body in the developing device, and a developer amount detecting device is disposed inside the developer accumulating portion. [0003] In the developing device, the developer contains a toner serving as an image forming material and a carrier serving as a conveying medium of the toner, and the developer is supplied to a bearing member for development while being stirred and conveyed by a stirring member, according to the toner Concentration to supply toner. In the structure using the toner concentration sensor t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/08
CPCG03G15/0887G03G15/0865G03G15/0893
Inventor 加藤直中村隆志速水健二
Owner FUJIFILM BUSINESS INNOVATION CORP