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Electrophotographic photoreceptor and electrophotographic imaging apparatus employing the same

An electrophotographic and imaging device technology, applied in the field of electrophotographic imaging devices and electrophotographic photoreceptors, to achieve the effects of high-quality images, high image quality and stability, and low residual potential

Inactive Publication Date: 2008-08-20
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] But because the reactive silane coupling agents used in the above-mentioned prior art contain reactive bonds such as double bonds, amino groups, epoxy groups, etc., additional treatment for introducing these reactive groups into silane compounds is required

Method used

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  • Electrophotographic photoreceptor and electrophotographic imaging apparatus employing the same
  • Electrophotographic photoreceptor and electrophotographic imaging apparatus employing the same
  • Electrophotographic photoreceptor and electrophotographic imaging apparatus employing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] 4000 parts by weight of alumina balls (5 mmΦ), 160 parts by weight of titanium oxide (TTO-55N manufactured by Ishihara Industries, Co., with an average primary diameter of about 35 nm) and 4 parts by weight of dimethyldimethoxysilane were added to 320 parts by weight of methanol and dispersed by ball milling for 20 hours. The obtained dispersion was diluted with 1120 parts by weight of methanol, and the diluted dispersion was added to a solution of 80 parts by weight of nylon resin (CM 8000 manufactured by Toray Industries, Co.) dissolved in 320 parts by weight of methanol, and homogenized to obtain Coating composition for undercoating. The coating composition for an undercoat layer was coated on an aluminum drum having an outer diameter of 24 mmΦ, a length of 236 mm, and a thickness of 1 mm and dried in an oven at 100° C. for 30 minutes to form an undercoat layer having a thickness of 1 to 5 μm.

[0088] 5 parts by weight of γ-type oxytitanium phthalocyanine, 2.5 part...

Embodiment 2

[0091] A laminated photoreceptor drum was prepared in the same manner as in Example 1, except that 4 parts by weight of phenyltrimethoxysilane was used instead of 4 parts by weight of dimethyldimethoxysilane to prepare a coating composition for an undercoat layer .

Embodiment 3

[0093] A laminated photoreceptor drum was prepared in the same manner as in Example 1, except that 4 parts by weight of trimethoxypropylsilane was used instead of 4 parts by weight of dimethyldimethoxysilane to prepare a coating composition for an undercoat layer .

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Abstract

An electrophotographic photoreceptor is provided including an undercoat layer and a photosensitive layer that are sequentially formed on an electrically conductive substrate, wherein the undercoat layer includes a silane compound represented by Formula 1, a metal oxide, and a binder resin, and an electrophotographic imaging apparatus employing the electrophotographic photoreceptor, wherein R1 to R4 are each independently a C1-C9 alkyl group, a C1-C9 alkoxy group, a phenyl group, or a phenoxy group. The electrophotographic photoreceptor has excellent electrical properties such as low residual potential and high sensitivity and excellent image quality and stability.

Description

[0001] Cross references to related patent applications [0002] This application claims the benefit of Korean Patent Application No. 10-2007-0016769 filed in the Korean Intellectual Property Office on February 16, 2007, the disclosure of which is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates to an electrophotographic photoreceptor and an electrophotographic image forming device using the same. More specifically, the present invention relates to an electrophotographic image forming device and an electrophotographic photoreceptor having excellent electrical properties and image quality as well as their stability and improved long-term stability. Background technique [0004] An electrophotographic photoreceptor used in electrophotography applied to laser printers, copiers, facsimile machines, plotters, etc. includes a photosensitive layer formed on a conductive substrate and may be formed in the form of a plate, disc, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G5/06G03G5/07G03G5/14
CPCG03G5/142G03G5/144G03G5/06
Inventor 林安基
Owner SAMSUNG ELECTRONICS CO LTD
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