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Electrophotographic photoconductor and image forming apparatus including the same

A technology of photoconductor and electrophotography, which is applied to the equipment of the electric recording process using the charge pattern, the electric recording process using the charge pattern, optics, etc., and can solve the problem of insufficient gas resistance effect, deterioration of the electrical characteristics of the photoconductor, and the like. Improve environmental stability, improve image forming speed, and ozone resistance environmental stability by solving problems such as degradation of electrophotographic characteristics

Inactive Publication Date: 2012-07-11
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in most cases where additives such as the above-mentioned antioxidants are added, the electrical characteristics of the photoconductor deteriorate
[0015] That is, conventional techniques have not yet achieved sufficient gas resistance effects and negative effects such as deterioration of electrophotographic characteristics including sensitivity and residual potential remain due to the addition of such an antioxidant in practical use

Method used

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  • Electrophotographic photoconductor and image forming apparatus including the same
  • Electrophotographic photoconductor and image forming apparatus including the same
  • Electrophotographic photoconductor and image forming apparatus including the same

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Embodiment approach

[0134] Hereinafter, embodiments of the electrophotographic photoconductor and image forming apparatus of the present invention will be described with reference to the drawings.

[0135] However, the electrophotographic photoconductor and image forming apparatus of the present invention are not limited to the following embodiments, and it will be clear to those skilled in the art from the description herein and the accompanying drawings that the present invention includes Various modifications, changes and alterations may be made to any of the embodiments within the given range.

[0136] Multilayer Electrophotographic Photoconductor

Embodiment approach 1

[0138] figure 1 is a partial cross-sectional plan view schematically showing the configuration of an electrophotographic photoconductor 1 that is Embodiment Mode 1 of the electrophotographic photoconductor of the present invention. In this embodiment mode, the photosensitive layer has a multilayer structure including a charge generating layer and a charge transporting layer.

[0139] The electrophotographic photoconductor 1 includes: a sheet-shaped conductive carrier 11 formed of a conductive material; a charge generating layer 15 stacked on the conductive carrier 11 and including a charge generating material 12; and a charge generating layer 15 stacked on the charge generating layer 15 and including a charge transport Charge transport layer 16 of material 13 . The charge generation layer 15 and the charge transport layer 16 constitute a multilayer type photoconductive layer 14 as a photosensitive layer. In other words, the photoconductor 1 is a multilayer type photoconducto...

Embodiment approach 2

[0223] figure 2 is a partial cross-sectional plan view schematically showing the configuration of an electrophotographic photoconductor 2 which is Embodiment Mode 2 of the electrophotographic photoconductor of the present invention. The electrophotographic photoconductor 2 of the present embodiment and figure 1 The electrophotographic photoconductor 1 of Embodiment Mode 1 shown in .

[0224] middle layer

[0225] It should be noted that the electrophotographic photoconductor 2 has the intermediate layer 18 between the conductive support 11 and the photosensitive layer 14 .

[0226] When the intermediate layer 18 is not provided between the conductive carrier 11 and the photosensitive layer 14, charges will be injected from the conductive carrier 11 into the photosensitive layer 14, thereby reducing the chargeability of the photosensitive layer 14, thereby causing the The surface charge decreases and produces image defects including image fogging. In forming an image by th...

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Abstract

An electrophotographic photoconductor, comprising: a conductive support; and a photosensitive layer provided on the conductive support and containing a charge generation material and a charge transport material, the photosensitive layer containing, as the charge transport material, a compound represented by the following general formula (I): wherein Ar1 represents an optionally substituted arylene or bivalent heterocyclic group; Ar2s, which may be the same or different, each represent a hydrogen atom or an optionally substituted alkyl, aralkyl, aryl or monovalent heterocyclic group; R1 represents an optionally substituted alkyl group; R2s each represent a hydrogen atom or an optionally substituted alkyl group; R3 and R4s, which may be the same or different, each represent a hydrogen atom or an optionally substituted alkyl or alkoxy group; and n is 0 or 1.

Description

technical field [0001] The present invention relates to organic photoconductive materials, and electrophotographic photoconductors and image forming devices using the same. Background technique [0002] In recent years, organic photoconductive materials have been extensively researched and developed for use in electrostatic recording elements such as photoconductors. In addition, organic photoconductive materials have begun to be used for sensing elements, organic electroluminescence (abbreviated as EL) elements, and the like. [0003] Organic photoconductors using organic photoconductive materials have been gradually developed as the workhorse of photoconductors because they are excellent in film-forming ability, flexibility, brightness, and transparency of photosensitive layers, thus advantageously making it possible to easily design A photoconductor that exhibits good sensitivity to a wider wavelength region. [0004] The organic photoconductors originally had disadvant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G5/047G03G5/06G03G15/00
CPCG03G5/0668G03G5/0672G03G5/0614G03G15/751G03G5/06147G03G5/061473G03G5/06149
Inventor 小幡孝嗣近藤晃弘
Owner SHARP KK
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