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Toner conveying device and image forming apparatus including the toner conveying device

A technology of conveying device and toner, which is applied in packaging, electric recording process applying charge pattern, equipment applying electric recording process of electric charge pattern, etc. rising effect

Inactive Publication Date: 2016-04-20
KYOCERA DOCUMENT SOLUTIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the frictional rotation load between the entire circumference of the rotating shaft and the inner peripheral surface of the bearing may increase.

Method used

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  • Toner conveying device and image forming apparatus including the toner conveying device
  • Toner conveying device and image forming apparatus including the toner conveying device
  • Toner conveying device and image forming apparatus including the toner conveying device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Hereinafter, embodiments of the present invention will be described with reference to the drawings. figure 1 It is a schematic cross-sectional view showing the structure of the image forming apparatus 1 of the present invention. In the image forming apparatus (such as a monochrome printer) 1, when performing an image forming operation, along figure 1 The photosensitive drum 3 rotating in the clockwise direction is uniformly charged by the charging unit 2 . Next, an electrostatic latent image is formed on the photosensitive drum 3 by a laser beam from an exposure unit (laser scanning unit, etc.) 4 based on the image data. Also, a developer (hereinafter referred to as toner) is attached to the electrostatic latent image by the developing unit 5 and a toner image is formed.

[0021] Toner is supplied to the developing unit 5 from a toner storage 6 . In addition, image data is transmitted from a personal computer (not shown) or the like. In addition, a static eliminator...

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PUM

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Abstract

A toner transportation device(30) according to the present invention includes a transportation screw(35) that has a rotational shaft(35b) and a transportation fin(35a) formed on an outer circumferential surface of the rotational shaft(35b) and a toner transportation pipe(31) that has a circular shape in cross section. The transportation screw(35) is rotatably positioned in the toner transportation pipe(31). A support member(40) is attached to the rotational shaft(35b) that has a bearing portion(40a) having an annular shape and rotatably fitted onto the rotational shaft(35b) and that has a plurality of leg portions(40b) radially protruding outward from an outer circumferential surface of the bearing portion(40a). A distance between an axis of the rotational shaft(35b) and a tip(40ba) of each leg portion(40b) is greater than a radius of the transportation fin(35a) and equal to or less than a radius of an inner circumferential surface of the toner transportation pipe(31).

Description

technical field [0001] The present invention relates to a toner conveying device used in image forming devices such as copiers, printers, facsimile machines and multifunction machines. Background technique [0002] In an image forming apparatus, the usual process is to use a developing device to visualize an electrostatic latent image formed on an image carrier such as a photosensitive drum, and to transfer the visible image (toner image) to a powdered developer. After being placed on the recording medium, a fixing process is performed. The toner remaining on the surface of the image carrier is removed by the cleaning device, and a new toner image is formed. The residual toner removed by the cleaning device is stored in the waste toner bottle. When the waste toner bottle becomes full after printing a predetermined number of sheets, the user is notified to discard or replace the waste toner bottle. [0003] It is known to use a toner conveyance path provided with a conveya...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G15/08G03G15/00
CPCG03G15/0891B65G33/14B65G33/32G03G21/105G03G2215/0827G03G2215/0833
Inventor 吉井达彦村田耕治山根直树
Owner KYOCERA DOCUMENT SOLUTIONS INC