Image-bearing member protecting agent, protective layer forming device, image forming method, image forming apparatus, and process cartridge

A technology for processing cartridges and protective agents, which is applied in the direction of electric recording process applying charge pattern, equipment for applying electric recording process of charge pattern, electric recording technique, etc. It can solve the problem of increasing the coating amount of photoreceptor and impossible to completely eliminate and other problems, to achieve the effect of sufficient protection, pollution prevention, and film formation prevention

Active Publication Date: 2011-07-20
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This wear rate increases the amount of coating on the photoreceptor. Although the coating amount can be reduced to a certain extent, it is impossible to completely eliminate
And it is known that when the supply amount is increased in this way, the lubricant adheres to the photoreceptor, and abnormal images are generated.

Method used

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  • Image-bearing member protecting agent, protective layer forming device, image forming method, image forming apparatus, and process cartridge
  • Image-bearing member protecting agent, protective layer forming device, image forming method, image forming apparatus, and process cartridge
  • Image-bearing member protecting agent, protective layer forming device, image forming method, image forming apparatus, and process cartridge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0373] The following shows specific examples and comparative examples in the case where a protective agent is coated on a photoreceptor serving as an image carrier in an image forming apparatus according to the present invention.

[0374] here, Figure 4 Table 1 of Table 1 shows the evaluation results of Examples and Comparative Examples when a protective agent containing a hydrophobic organic compound (A), an inorganic lubricant (B) and an inorganic fine particle (C) is coated on a photoreceptor.

[0375] exist Figure 4 The compound machine Imagio MP C3000 image forming device of Ricoh Company through transformation has been used in the embodiment and the comparative example shown in Table 1, and its image forming part has carried the processing cartridge 11, and this cartridge is equipped with such as figure 2 The protective layer forming device 2 shown is provided on the downstream side of the cleaning member 4 along the rotation direction of the photoreceptor 1 and on t...

Embodiment 5

[0400] The measurement was carried out 5 times, and the average value thereof was recorded in Table 1.

[0401] With respect to the protective agent of the above-mentioned embodiment and comparative example, each get A4 version size, the photocopy of the original manuscript of 6% of the image area ratio, carry out the image output test (continuous paper passing test) that passes through 5,000 sheets of paper output continuously, each Do each of them twice. After the image output test, the filming and cracking of the photoreceptor and the contamination of the charging roller were visually judged. ,

[0402] Table 1 shows the evaluation results of Examples and Comparative Examples and details of the evaluation results.

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Abstract

To provide an image-bearing member protecting agent which can achieve a sufficient protecting effect on the surface of an image-bearing member, prevention of filming on the image-bearing member, and prevention of smearing on a charging member, and to provide a protective layer forming device which can form an excellent protective layer for image-bearing member using the image-bearing member protecting agent. The image-bearing member protecting agent to be used for an image forming method or an image forming apparatus is characterized by comprising the following components: a hydrophobic organic compound (A); an inorganic lubricant (B); and inorganic fine particles (C), wherein each of the inorganic fine particles (C) has a specific surface area of 2.0 to 6.5 m<2>/g. The protective layer forming device 2 includes at least an image-bearing member protecting agent 21 and a protecting agent supply member 22, and supplies the image-bearing member protecting agent 21 to the surface of the image-bearing member 1 via the protecting agent supply member 22.

Description

technical field [0001] The present invention relates to an image carrier protective agent coated or attached to protect the surface of an image carrier in an electrophotographic image forming method or an image forming apparatus, and the application or attachment of the protective agent to an image carrier. A protective layer forming device for forming a protective layer on a surface of a body, an image forming method having the above-mentioned image carrier protective agent or the above-mentioned protective layer forming device, an image forming device, and a process cartridge. Background technique [0002] Hitherto, when forming an image by electrophotography, a latent image generated by static electricity is formed on an image carrier made of a photoconductive material or the like, and charged toner particles are attached to the latent electrostatic image to form a visual image. After the visible image formed by the toner is finally transferred to a transfer medium such ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G21/00G03G15/00G03G21/18C10M169/04
Inventor 长谷川邦雄中井洋志田中真也
Owner RICOH KK
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