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Powder conveying device, processing card box and image formation device

A conveying device and powder technology are applied in the direction of electric recording process applying charge pattern, equipment for electric recording process applying charge pattern, electric recording technique, etc. Toner clogging and other problems, to achieve the effect of preventing toner clogging, saving assembly time, and reducing wear and tear

Active Publication Date: 2007-04-04
RICOH KK
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

As mentioned above, it can expand and contract along the length direction with a small force, especially when there is a curved part, the shell wall and the outer shape of the conveying means are in contact to generate friction, and the amount of expansion and contraction is different due to different contact conditions, so it cannot be controlled. Flexibility
[0012] If the downstream end of the powder conveying member does not reach the outlet of the tube, for example, the toner conveying force decreases at the downstream end, and toner clogging occurs at the connection position between the tube and the second tube, causing toner clogging
On the contrary, if the downstream end of the powder conveying member protrudes from the tube outlet, it will interfere with the second pipe or the second powder conveying member, etc., causing trouble during assembly

Method used

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  • Powder conveying device, processing card box and image formation device
  • Powder conveying device, processing card box and image formation device
  • Powder conveying device, processing card box and image formation device

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Embodiment Construction

[0083] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following embodiments, although various limitations are made to constituent elements, types, combinations, shapes, relative arrangements, etc., these are merely examples, and the present invention is not intended to limited to this.

[0084] FIG. 1 shows a schematic configuration diagram of an internal mechanism in a tandem color image forming apparatus. In FIG. 1 , reference numeral 100 denotes an image forming apparatus main body, and 200 denotes an image reading device mounted on the image forming apparatus main body 100 .

[0085] In the main body 100 of the image forming apparatus, a cyan imaging station 10c, a magenta imaging station 10m, a yellow imaging station 10y, and a black imaging station 10b are arranged in series. In each imaging station, drum-shaped photoreceptors 11c, 11m, 11y, and 11b are respectively provided as image carr...

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PUM

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Abstract

The present invention relates to a powder conveying device, a process cartridge and an image forming device provided with the powder conveying device. The powder conveying device is used to convey powder, which includes: a powder conveying channel forming part extending in a curved manner; a powder conveying part arranged on the entire length of the powder conveying channel forming part, and Rotate in the conveying channel forming part to transport powder; the restricting part, at the downstream end of the powder conveying channel forming part, is integrally formed with the powder conveying channel forming part, and is used to restrict the powder conveying The passage forms the length of the powder conveying part over the entire length of the part, the restricting part having an outlet hole for powder conveyed by the powder conveying part. Even if the length of the powder conveying part deviates, there will be no clogging of powder such as toner or interference with other parts.

Description

technical field [0001] The present invention relates to image forming apparatuses such as copiers, printers, facsimile machines and their multifunction machines. Among them, in particular, it relates to an electrophotographic image forming apparatus that directly transfers or indirectly transfers a toner image formed on a photoreceptor through an intermediate transfer body, and records the image on a recording medium such as paper or an OHP film. The present invention also relates to a powder conveying device for conveying powder such as toner in such an image forming apparatus, and a process cartridge provided with such a powder conveying device, which together with the photoreceptor at least makes the cleaning device Integrated, relatively easy to install and detach from the image forming device. Background technique [0002] In an electrophotographic image forming apparatus, after a toner image is transferred to a recording medium, a cleaning device is used to remove the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/08G03G21/18
Inventor 熊谷直洋柳田雅人田中秀树藤城宇贡原田博臣田渕健大慈弥笃哉片冈超太郎多和田高明川原真一水石治司
Owner RICOH KK
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