Powder transporting apparatus and image forming apparatus including the same

A technology of transmission device and transmission device, which is applied in the direction of electrical recording technology using charge graphics, equipment and instruments using electrical recording technology using charge graphics, and can solve the problems of reduced absorption capacity and ineffective use of energy, etc.

Active Publication Date: 2009-07-01
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that the energy of the driving source for rotating the rotor 102 cannot be effectively utilized due to the large driving torque of the rotor and the generated frictional heat.
[0008] In addition, another problem is that due to the large friction between the stator 101 and the rotor 102, the stator 101 and the rotor 102 are worn or powder such as toner adheres, causing suction to occur at a relatively early stage reduction in capacity

Method used

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  • Powder transporting apparatus and image forming apparatus including the same
  • Powder transporting apparatus and image forming apparatus including the same
  • Powder transporting apparatus and image forming apparatus including the same

Examples

Experimental program
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Embodiment Construction

[0028] refer to Figures 1 to 10 , the embodiment of the present invention will be described. figure 1 A cross-sectional view of an imaging device according to an embodiment of the present invention is shown. figure 2 yes figure 1 A cross-sectional view of a process cartridge of an image forming apparatus is shown. image 3 is a schematic sectional view showing the arrangement of the developer supply device of the image forming apparatus in the form of the developer supply device 35 .

[0029] The image forming apparatus 1 operates on a recording medium 7 as a transfer material (see figure 1 ) to form various color images of yellow (Y), magenta (M), cyan (C) and black (K), that is, color images. Cells and the like corresponding to each color of yellow, magenta, cyan, and black are shown by appending letters Y, M, C, and K to each reference numeral.

[0030] Such as figure 1 As shown, the image forming apparatus 1 includes: an apparatus main body 2, a paper supply un...

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Abstract

A powder transporting apparatus is made up of: a powder container containing therein powder; a transportation tank having an inlet for supplying the powder from the powder container, and an outlet for discharging the powder to an outside; a conveying device disposed in the transportation tank and rotated about an axis to thereby transport the powder in the transportation tank from the inlet to the outlet; and a suction device disposed outside the transportation tank. The suction device sucks gas in the transportation tank through a suction port which is away from both the inlet and the outlet of the transportation tank. The powder in the powder container is thus sucked into the transportation tank.

Description

technical field [0001] The present invention relates to an apparatus for conveying (or conveying) powder such as toner to a developing device in an image forming apparatus such as a copying machine, a facsimile machine, a printer, and the like. The invention also relates to an imaging device comprising means for conveying powder. The device for conveying powder is also referred to as powder conveying device in the present invention. Background technique [0002] Imaging devices, such as printers, are conventionally provided with a powder transfer device 100 that transfers powder in the form of toner from a powder container in the form of a toner container to a developing device (see Figure 17 and JP-A-2000-35144, the current patent number is 4132412). [0003] Such as Figure 17 The powder conveying device shown in is provided with: a stator 101, which is made of an elastic material, such as rubber, and formed into a cylinder with screw grooves formed on its inner peripher...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/08G03G15/01
CPCG03G2215/0685G03G15/0896G03G15/0839G03G2221/163G03G15/0879G03G15/0877
Inventor 上原晋一
Owner RICOH KK
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