Electronic photographing photosensitive component, processing cartridge, and electronic photographing device

An electrophotographic and photosensitive member technology, applied in optics, electrographics, instruments, etc., can solve the problem of not specifically disclosing the details of the surface profile of the electrophotographic photosensitive member.

Active Publication Date: 2009-03-04
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, none of these specifically disclose details about the surface profile of the surface of the electrophotographic photosensitive member roughened using this method

Method used

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  • Electronic photographing photosensitive component, processing cartridge, and electronic photographing device
  • Electronic photographing photosensitive component, processing cartridge, and electronic photographing device
  • Electronic photographing photosensitive component, processing cartridge, and electronic photographing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0158] An aluminum cylinder with a diameter of 30 mm and a length of 357.5 mm that had been subjected to surface cutting processing was used as the support (cylindrical support).

[0159] Next, a mixture composed of the following components was dispersed by a ball mill for about 20 hours to prepare a conductive layer coating liquid.

[0160] 60 parts powder composed of barium sulfate particles with tin oxide coating

[0161] (Trade name: PASTRAN PC1; purchased from Mitsui Mining & Smelting Co., Ltd.)

[0162] 15 parts of titanium oxide

[0163] (Trade name: TITANIX JR; purchased from Tayca Corporation)

[0164] 43 parts of resole phenolic resin

[0165] (Trade name: PHENOLITE J-325; purchased from Dainippon Ink & Chemicals, Incorporated; solid content: 70%)

[0166] Silicone oil 0.015 parts

[0167] (Trade name: SH28PA; purchased from Toray Silicone Co., Ltd.)

[0168] Silicone resin 3.6 parts

[0169] (Trade name: TOSPEARL 120; purchased from Toshiba Silicone Co., Ltd.)

[0170] ...

Embodiment 2

[0213] In addition to the mold used in Example 1, the Picture 12 The electrophotographic photosensitive member was produced in the same manner as in Example 1, except that the height of 3.0 μm represented by F in F became 2.4 μm, and its surface was treated in the same manner as in Example 1. The surface profile was measured in the same manner as in Example 1 to confirm that a cylindrical depression was formed. The measurement results are shown in Table 1. The depressed portions are formed at intervals of 1.0 μm. The percentage of the open area is calculated and found to be 20%. The elastic deformation modulus and the generalized hardness were measured in the same manner as in Example 1. As a result, the elastic deformation modulus value is 55%, and the generalized hardness value is 180N / mm 2 . The performance of the electrophotographic photosensitive member was also evaluated in the same manner as in Example 1. The results are shown in Table 1.

Embodiment 3

[0215] In addition to the mold used in Example 1, the Picture 12 Except that the major axis diameter indicated by D becomes 0.5 μm, the interval 1.0 μm indicated by E becomes 0.5 μm, and the height indicated by F becomes 2.0 μm, the same as in Example 1 is adopted. The electrophotographic photosensitive member was produced by the method, and its surface was treated in the same manner as in Example 1. The surface profile was measured in the same manner as in Example 1 to confirm that a cylindrical depression was formed. The measurement results are shown in Table 1. The depressed portions are formed at intervals of 0.5 μm. The percentage of the open area is calculated and found to be 20%. The elastic deformation modulus and the generalized hardness were measured in the same manner as in Example 1. As a result, the elastic deformation modulus value is 55%, and the generalized hardness value is 180N / mm 2 . The performance of the electrophotographic photosensitive member was also eval...

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PUM

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Abstract

The present invention provides an electrophotographic photosensitive member which can improve cleaning property and obtains excellent image reproduction property even being used for a long time. The invention also provides a processing kit and an electronic photography device using the electrophotographic photosensitive member. The electrophotographic photosensitive member has, on the surface of its photosensitive layer, has a plurality of depressed portions which are independent from one another, and, where the major-axis diameter of each depressed portion is represented by Rpc and the depth that shows the distance between the deepest part of each depressed portion and the opening thereof is represented by Rdv, the depressed portions each have a ratio of depth to major-axis diameter, Rdv / Rpc, of from more than 1.0 to 7.0 or less.

Description

Technical field [0001] The present invention relates to an electrophotographic photosensitive member, a process cartridge having the electrophotographic photosensitive member, and an electrophotographic apparatus. Background technique [0002] Considering the advantages of low price and high productivity, as an electrophotographic photosensitive member (hereinafter also simply referred to as "photosensitive member"), an organic electrophotographic photosensitive member has become popular, which has a support and uses an organic material provided thereon as a photosensitive member. The photosensitive layer (organic photosensitive layer) of materials such as charge generating materials and charge transporting materials. In consideration of advantages such as high sensitivity and diversified material design, as an organic electrophotographic photosensitive member, electrophotographic photosensitive members having a multilayer type photosensitive layer having a charge containing a ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G5/147G03G5/00G03G5/04
Inventor 大垣晴信植松弘规川原正隆大地敦寺本杏一岛田明丸山晶夫菊地宪裕小金井昭雄角田隆行
Owner CANON KK
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