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Protective-agent applying device, process cartridge, and image forming apparatus

A technology of coating equipment and imaging device, applied in the field of process cartridges, imaging devices, and protective agent coating equipment, can solve the problems of indistinguishable protective agents and difficulty in evaluating protective agents, etc.

Inactive Publication Date: 2008-09-17
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when a metal-free protective agent such as paraffin is used, the peaks of the protective agent detected by XPS analysis only include the peaks of C and O, so the protective agent cannot be distinguished from the elements contained in the photosensitive element, which makes it difficult to evaluate the deposition on The amount of protective agent on the photosensitive element

Method used

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  • Protective-agent applying device, process cartridge, and image forming apparatus
  • Protective-agent applying device, process cartridge, and image forming apparatus
  • Protective-agent applying device, process cartridge, and image forming apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-1 to 1-3 and comparative example 1-1

[0244] The photosensitive member was covered with the protective agent under the following conditions, and the adhesion amount of the protective agent was measured.

[0245] (1) Protective agent

[0246] 79 parts by weight of n-paraffin wax having a melting temperature of 106°C, 10 parts by weight of n-paraffin wax having a melting temperature of 112°C, and 11 parts by weight of cyclic polyolefin TOPAS-TM (softening temperature 60°C, manufactured by Ticona Co.) were added A glass container with a cover was stirred and melted with a thermostirrer, wherein the temperature was controlled at 125° C. (composition of protectant formulation 1-1).

[0247] The molten composition of protectant formulation 1-1 was poured into an aluminum mold that had been preheated to 88°C to fill it. The mold has internal dimensions of 12mm x 8mm x 350mm. The composition was cooled to 50°C in a room temperature atmosphere, then the composition was reheated to 60°C in a temperature-controlled bath in...

Embodiment 1-4 and comparative example 1-2

[0259] According to the conditions of the starting materials in the protective agent manufacturing conditions of Example 1-1, 65 parts by weight of normal paraffin wax with a melting temperature of 133 ° C, 22 parts by weight of normal paraffin wax with a melting temperature of 108 ° C, and 13 parts by weight Part cyclic polyolefin TOPAS-TM (softening temperature 60°C, manufactured by Ticona Co.). Other materials are the same as those used to prepare the protective agent in Example 1-1.

[0260] The protective agent of protective agent coating equipment 2-2 and 2-3 is replaced with the protective agent prepared above respectively, and the protective agent used for replacement is installed in protective agent coating equipment 2-2 and 2-3 (hereinafter referred to as protection agent respectively). agent coating equipment 2-5 and 2-6). Protective agent coating devices 2-5 and 2-6 were used to apply a protective agent in the same manner as in Example 1-1, and to measure the amou...

Embodiment 1-5 and 1-6

[0266] The conditions of the starting materials in the protective agent manufacturing conditions according to Example 1-1 are determined as 55 parts by weight of normal paraffin wax with a melting temperature of 126°C, 22 parts by weight of normal paraffin wax with a melting temperature of 108°C, 13 parts by weight of normal paraffin wax with a melting temperature of 108°C, Cyclic polyolefin TOPAS-TM (softening temperature 60°C, manufactured by Ticona Co.), and 10 parts by weight of polytetrafluoroethylene particles. Other materials are the same as those used to prepare the protective agent in Example 1-1.

[0267] The protective agent of protective agent coating equipment 2-6 and 2-5 is replaced with the protective agent of above-mentioned preparation respectively, and the protective agent used for replacement is installed in protective agent coating equipment 2-6 and 2-5 (hereinafter respectively referred to as protection agent). agent coating equipment 2-7 and 2-8). Protec...

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Abstract

The invention relates to a protective-agent applying device, process cartridge, and image forming apparatus. The protective-agent applying device applies a protective agent mainly containing paraffin to a photosensitive element. The protective-agent applying device applies a protective agent to a surface of the photosensitive element in such a manner that when applying the protective agent for 10 minutes, the protective agent equal to or more than 0.5 mug / cm<2> adheres to the surface, and when applying the protective agent for 60 minutes, the protective agent equal to or less than 8 mug / cm<2> adheres to the surface.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from the following Japanese priority documents and the entire contents of which are incorporated herein by reference: 2007-062512 filed in Japan on March 12, 2007, 2007-065637 filed in Japan on March 14, 2007, and 2007 2007-065707 filed March 14 in Japan. technical field [0003] The present invention relates to a protective agent coating device, a process box and an image forming device. Background technique [0004] In a conventional electrophotographic image forming device, an image is formed by subjecting a photosensitive member to a charging process, an exposure process, a development process, and a transfer process. Discharge products generated during the charging process remain on the surface of the photosensitive member, and untransferred toner or toner components also remain on the surface of the photosensitive member after the transfer process. These products, as well as unt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G5/05G03G21/10
Inventor 畠山久美子加幡利幸山下昌秀
Owner RICOH KK
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