Electronic photographic photoreceptor and image forming device

An electrophotographic and photoreceptor technology, applied in the field of electrophotographic photoreceptors, image forming devices, and single-layer electrophotographic photoreceptors, can solve the problem that the generation of fog cannot be suppressed, the application of positively charged organic photoreceptors has not carried out any research, Problems such as fog generation, to achieve the effect of suppressing the generation of fog, suppressing fog, and increasing manufacturing costs

Inactive Publication Date: 2011-01-05
KYOCERA DOCUMENT SOLUTIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Furthermore, in the invention described in Patent Document 3, no study has been made on the application of positively charged organic photoreceptors.
In addition, in the invention described in Patent Document 3, in order to maintain the toner-filming resistance, only a mixture of polyvinyl chloride or vinyl chloride-vinyl acetate copolymer and polycarbonate that is resistant to abrasion and damage at the time of contact is used. Esters mixed resins are used as resins, and there is no research on improving the triboelectric charging performance of toners.
Therefore, using a mixed resin of polycarbonate and at least one of polyvinyl chloride and vinyl chloride-vinyl acetate copolymer to form a single-layer positively charged organic photoreceptor is also due to the film thickness of the photosensitive layer and the hole transport agent. Combination with electron transport agent or charged potential, not only can't suppress the generation of fog, but also may generate a large amount of fog

Method used

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  • Electronic photographic photoreceptor and image forming device
  • Electronic photographic photoreceptor and image forming device
  • Electronic photographic photoreceptor and image forming device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0111] The X-type metal-free phthalocyanine crystal shown in the chemical formula (6) that accommodates 3 parts by mass as a charge generating agent in the container, the stilbene amine compound shown in the chemical formula (4) as the hole transport agent in 50 parts by mass, 30 The naphthoquinone compound shown in the chemical formula (5) as the electron transport agent of mass parts, the bisphenol Z type polycarbonate resin (number average) shown in the chemical formula (2-1) of 95 mass parts as binder resin Molecular weight: 30000), 5 parts by mass of polyvinyl chloride (manufactured by NACALAI TESQUE Co., Ltd., product number 36305-65, hereinafter sometimes abbreviated as olefin polymer 1), and 700 parts by mass of tetrahydrofuran as a solvent.

[0112] Next, these materials accommodated in the container were mixed and dispersed for 50 hours using a ball mill, thereby preparing a coating liquid for a photosensitive layer.

[0113] Next, the prepared photosensitive layer c...

Embodiment 2

[0116] As the binder resin, use 90 parts by mass of bisphenol Z-type polycarbonate and 10 parts by mass of polyvinyl chloride instead of 95 parts by mass of bisphenol Z-type polycarbonate resin and 5 parts by mass of polyvinyl chloride, in addition Other than that, a single-layer electrophotographic photoreceptor was produced in the same manner as in Example 1.

Embodiment 3

[0118] As the binder resin, use 80 parts by mass of bisphenol Z-type polycarbonate and 20 parts by mass of polyvinyl chloride instead of 95 parts by mass of bisphenol Z-type polycarbonate resin and 5 parts by mass of polyvinyl chloride, in addition Other than that, a single-layer electrophotographic photoreceptor was produced in the same manner as in Example 1.

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Abstract

The present invention provides a monolayer-type electronic photographic photoreceptor and an image forming device, capable of effectively restraining generation of fog when an image is formed at a high speed without great increase of cost of manufacture. The electronic photographic photoreceptor includes a conductive basal body and a light-sensing layer, wherein the light-sensing layer is arranged on the most surface layer of the electronic photographic photoreceptor, and the light-sensing layer, as an adhesive resin, contains at least one of polycarbonate and polyarylester and at least an alkene polymer containing a monomeric unit represented by a general formula (1). In the general formula (1), at least one of X1, X2, X3 and X4 is an atom which electronegativity is greater than that of a hydrogen atom, the rest are the hydrogen atoms.

Description

technical field [0001] The present invention relates to an electrophotographic photoreceptor and an image forming apparatus, and particularly to a single-layer electrophotographic photoreceptor that suppresses generation of fog, and an image forming apparatus including the single-layer electrophotographic photoreceptor. Background technique [0002] As a developing method performed in an image forming apparatus, there is a positive charging type reversal developing method. In this method, toner frictionally charged to positive polarity by a developing member adheres to an electrostatic latent image on an electrophotographic photoreceptor charged to positive polarity by electrostatic force, thereby performing reverse development. Then, the developed toner image is transferred and fixed to a recording medium, whereby an image is formed. [0003] The electrophotographic photoreceptor used in this method is easy to manufacture, and a hole transport agent and an electron transpo...

Claims

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Application Information

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IPC IPC(8): G03G5/05G03G15/00
Inventor 清水智文宫本荣一
Owner KYOCERA DOCUMENT SOLUTIONS INC
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