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Color tone agent forwarding equipment and image forming equipment

A technology for conveying devices and toners, which is applied in the field of image forming devices and toner conveying devices, and can solve problems such as restrictions on installation places, false detections, and cost increases

Inactive Publication Date: 2004-01-14
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, in the above-mentioned former method, not only the cleaning member but also a device for driving it are required, which leads to a significant increase in cost, and the installation place is also limited.
In the above-mentioned latter method, toner adheres, causing false detection, and cannot be applied to containers other than toner cartridges whose replacement cycle is short

Method used

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  • Color tone agent forwarding equipment and image forming equipment
  • Color tone agent forwarding equipment and image forming equipment
  • Color tone agent forwarding equipment and image forming equipment

Examples

Experimental program
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Embodiment Construction

[0065] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0066] Here, the present invention is applied to an electrophotographic copier (hereinafter abbreviated as "copier") as an image forming apparatus, and it will be described as an example.

[0067] First, the basic structure of the copying machine according to the embodiment of the present invention will be described. figure 1 It is a schematic configuration diagram of main parts of a copier according to an embodiment of the present invention. In the figure, the copier is provided with a document reading unit 1 , an automatic document feeding unit 2 , a printing unit 3 , and a paper feeding unit 4 .

[0068] The document automatic feeding unit 2 automatically feeds a document (not shown) placed thereon onto a platen glass 5 described later.

[0069] The above-mentioned document reading unit 1 is used to read document images. When the user manually places an o...

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PUM

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Abstract

Fine particle transport device and image forming apparatus. SOLUTION: Two opposite transparent windows 74a and 74b are provided sandwiching a pipe inside flow passage on a nozzle 72. A flow sensor 76 is provided so as to sandwich a nozzle part providing the transparent windows 74a and 74b. The flow sensor 76 consists of a transmissive photosensor which is an optical sensor. A voltage, in response to a toner amount of the pipe inside flow passage, is output by receiving the light emitted from a light-emitting element 76a to a light-receiving element 76b in a passage from the transparent window 74a through the pipe inside flow passage to the transparent window 76b. A control part (not shown) is composed so that toner end is determined on the basis of the output voltage value.

Description

technical field [0001] The present invention relates to a toner conveying device provided with a toner discharge promoting mechanism and a toner conveying mechanism for promoting toner discharge from storage and an image forming apparatus using the toner conveying device. The toner is discharged from the toner storage container, and the conveying mechanism conveys the discharged toner to the developing device through the conveying passage. Background technique [0002] Conventionally, in image forming apparatuses such as copiers, facsimile machines, and printers, it is known to use powdery image forming agents to form images. For example, an electrostatic latent image formed on a latent image carrier is developed by a developer to form a toner image. In such an electrophotographic image forming device, toner or a two-component developer is generally used as a powder. Image forming agent. The above-mentioned two-component developer is an image-forming agent containing a ton...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/08
CPCG03G15/0848G03G15/0874G03G15/0879G03G15/0877G03G15/0839
Inventor 藤森仰太服部良雄
Owner RICOH KK