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Storage, toner passage, and image forming apparatus

A technology of toner and storage part, which is applied in the field of toner passage, image forming device and storage part, which can solve the problems of image quality reduction, influence on toner chargeability, complexity, etc., and achieve the effect of efficient use

Inactive Publication Date: 2015-09-02
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, for example, various proposals have been made, such as improving the fluidity of the toner itself or providing vibration to the toner passage, but the former has other problems such as affecting the chargeability of the toner and deteriorating the image quality, or the latter There are other problems such as the need for complex functions that cause failures

Method used

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  • Storage, toner passage, and image forming apparatus
  • Storage, toner passage, and image forming apparatus
  • Storage, toner passage, and image forming apparatus

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment

[0063] According to the first embodiment of the present invention is applied to figure 2 The shown processing unit 35 includes a cleaner unit 38 . The processing unit 35 includes the developing roller 34, the photosensitive drum 36, the cleaner unit 38, and the like for each color as described above. The cleaner unit 38 sends toner (waste toner) that remains on the surface of the photosensitive drum 36 after development and transfer and is removed from the surface of the photosensitive drum 36 by, for example, a cleaning roller (not shown) or the like. To the waste toner box 72 provided inside the multifunction machine main body 12 on the front side of the photosensitive drum 36 and the intermediate transfer roller 60 .

[0064] From figure 2 It can be seen that the cleaner unit 38 includes the toner conveying screw 74, which is driven to rotate at one end side (inner side of the main body 12), and sends the waste toner to the nearer side along with the rotation. Inside t...

no. 2 Embodiment

[0087] Figure 6 Shows the second embodiment. as previously referenced figure 1 As described above, from the toner cartridge 37 via the relay pipe 104 ( Figure 6 ) supplies the toner to the casing 33 of the developing roller 34 . Moreover, in Figure 6 In the shown second embodiment, the inner wall surface of the relay pipe 104 is implemented with image 3 The moth-eye structure 82 is illustrated.

[0088] When the toner is supplied from the toner cartridge 37 to the casing 33 of the developing unit via the relay pipe 104, it is not fluid like waste toner, nor is it transported from bottom to top against gravity. Toner, but there are still cases where the toner cannot be smoothly conveyed. This is caused by toner adhering to the inner wall of the relay pipe. This is because the surface of toner is charged by external additives (functional fine particles) although it is not waste toner, so even if the fluidity is good, it adheres due to its high charging performance. I...

no. 3 Embodiment

[0092] In the third embodiment, such as Figure 6 As shown, a moth-eye structure 82 is further implemented on the inner wall surface of the casing 33 .

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PUM

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Abstract

Waste toner scraped off a surface of a photoreceptor drum is transported by a toner conveyor screw of a cleaner and sent into a process pipe. The process pipe includes an end that does not have a screw, and a moth-eye structure is provided on an inner wall surface of the end by applying a moth-eye sheet. Thus, the waste toner is prevented from remaining at the end of the process pipe.

Description

technical field [0001] The present invention relates to a storage unit, a toner passage, and an image forming apparatus, and more particularly, to a storage unit for storing toner and developer such as a toner cartridge and a housing of a developing unit, before or after the development process A toner passage for conveying toner, and an image forming apparatus including a storage portion and a toner passage. Background technique [0002] Patent Document 1 discloses an example of a waste toner recovery device that recovers toner after a developing process into a toner recovery box. [0003] In the waste toner recovery device of Patent Document 1, a rectangular depressed area having a diameter slightly smaller than the particle diameter of large pieces of waste toner is continuously formed on the inner wall surface of the cleaned toner passage. . [0004] Patent Document 1: Japanese Patent Application Laid-Open No. 6-308867 [G03G 21 / 00, 15 / 08] [0005] In the technology of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G15/08G03G21/12G03G21/00G03G15/00
CPCG03G15/0865G03G15/095G03G15/0879G03G21/105G03G2215/0132
Inventor 谷泽浩杉村博酒井正博
Owner SHARP KK
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