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Power transmission device, processing unit and image forming apparatus

A powder conveying device and powder technology, which are applied in the equipment, electrography, optics, etc. of the electric recording process applying the charge pattern to achieve the effect of preventing wrong insertion, convenient and reliable installation and disassembly

Active Publication Date: 2010-08-18
RICOH KK
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Thus, for example, even if one component has reached the end of its service life, other components that are still within its service life must be replaced together or discarded

Method used

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  • Power transmission device, processing unit and image forming apparatus
  • Power transmission device, processing unit and image forming apparatus
  • Power transmission device, processing unit and image forming apparatus

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Embodiment Construction

[0106] Preferred embodiments of the present invention will be described below with reference to these drawings.

[0107] FIG. 1 is a schematic cross-sectional view of an imaging device according to an embodiment of the present invention.

[0108] The image forming apparatus shown in FIG. 1 includes four processing units 1K, 1C, 1C, 1M, 1Y.

[0109] The process units 1K, 1C, 1M, 1Y have the same structure except that the toners loaded therein are different in color.

[0110] Each of the processing units 1K, 1C, 1M, 1Y includes an image bearing device 2 , a cleaning device 3 , a charging device 4 and a developing device 5 . Each of the processing units 1K, 1C, 1M, 1Y is detachably mounted on the main body of the image forming apparatus as shown in FIG. 1, and can be replaced as a whole.

[0111] The exposure device 7 is arranged above the processing units 1K, 1C, 1M, 1Y. The exposure device 7 is configured to emit laser beams L1 to L4 from laser diodes in accordance with inp...

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Abstract

A powder conveyance device is disclosed that enables plural powder conveyance paths to be easily and reliably attached and detached. The powder conveyance device includes a first housing including a first powder conveyance path, and a second housing including a second powder conveyance path, the first housing and the second housing being detachably attached to each other. A projection portion is provided in the first housing, the projection portion having a hole in communication with the first powder conveyance path, and a hole portion is provided in the second housing, the hole portion beingin communication with the second powder conveyance path. When attaching the first housing to or detaching the first housing from the second housing, the projection portion is inserted into or drawn out of the hole portion.

Description

technical field [0001] The present invention relates to a powder conveying device, a processing unit using the powder conveying device as a toner conveying device, and an image forming apparatus. Background technique [0002] In image forming apparatuses such as copiers, printers, facsimile machines, or other multifunction peripherals (MFPs), it is well known to detachably mount components including processing such as an image bearing device, a charging unit, or a toner container on an image forming apparatus, and therefore The processing unit can be easily replaced and maintenance is facilitated. [0003] In the prior art, for example, Japanese Laid-Open Patent Application Specification No. 2-171791 (hereinafter referred to as "Reference 1") discloses a method capable of recovering residual toner on an image bearing device and disposing of the toner. Provided to the processing unit of the developing unit. The process unit includes an image bearing device, a charging unit,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G15/08G03G21/18G03G15/01
CPCG03G21/105G03G15/0834G03G15/0844G03G15/0868G03G15/0875
Inventor 清水义之
Owner RICOH KK
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