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Powder conveying device, developing device, and image forming apparatus

A technology of a conveying device and a developing device is applied in the fields of developing devices, image forming devices, and powder conveying devices, and can solve the problems of reduced toner conveying force and the like.

Pending Publication Date: 2022-07-15
FUJIFILM BUSINESS INNOVATION CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In a developing device of the type that uses toner to develop an electrostatic latent image, there is a possibility that the conveying force for conveying the toner may decrease due to accumulation of toner, etc.

Method used

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  • Powder conveying device, developing device, and image forming apparatus
  • Powder conveying device, developing device, and image forming apparatus
  • Powder conveying device, developing device, and image forming apparatus

Examples

Experimental program
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Embodiment Construction

[0031] Hereinafter, embodiments of the present invention will be described.

[0032] figure 1 It is a schematic block diagram of the image forming apparatus which is one Embodiment of this invention. This image forming apparatus includes a developing device as one embodiment of the present invention and a powder conveying device as one embodiment of the present invention.

[0033] figure 1 The image forming apparatus 1 shown is a tandem type in which image forming units 10Y, 10M, 10C, and 10K corresponding to the colors of yellow (Y), magenta (M), cyan (C), and black (K) are arranged in parallel. This color printer can print not only monochrome images, but also full-color images composed of four-color toner images.

[0034] The image forming apparatus 1 includes: an exposure device 20 that irradiates the image forming sections 10Y, 10M, 10C, and 10K with exposure light, respectively, and an intermediate transfer belt that transfers toner images from the image forming sectio...

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PUM

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Abstract

The invention provides a powder conveying device, a developing device and an image forming apparatus. The powder conveying device is provided with: a storage unit for storing powder; a conveying member which extends in the axial direction, is disposed in the housing part, rotates, and conveys the powder in the housing part in the axial direction; and a swinging member which is supported by the conveying member so as to rotate in accordance with the rotation of the conveying member, and which swings in a direction different from the axial direction while rotating.

Description

technical field [0001] The present invention relates to a powder conveying device, a developing device, and an image forming device. Background technique [0002] In a developing device of a type that develops an electrostatic latent image with toner, there is a possibility that the conveying force for conveying the toner may decrease due to aggregation of the toner or the like. [0003] Japanese Patent Application Laid-Open No. 2009-276631 discloses that a pulverizing member for pulverizing the toner is provided in the vicinity of the inflow port into which the toner flows, so as to prevent clogging of the toner. [0004] In addition, Japanese Patent Application Laid-Open No. 2015-184310 discloses a structure in which a spiral coil is arranged in a conveying pipe with a downward slope such that the toner falls naturally, and the spiral coil is coaxial with the spiral coil and has a pitch ratio higher than that of the spiral coil. The helical screw of the helical screw has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/08
CPCG03G15/0891G03G15/0893G03G21/105G03G15/0872
Inventor 市原宽一星野弘久松苗英山田太一
Owner FUJIFILM BUSINESS INNOVATION CORP
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