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Electrophtography photosensor and image forming device

A technology for electrophotography and photoreceptors, applied in the field of electrophotographic photoreceptors and image forming devices, and electrophotographic photoreceptors, can solve the problem of insufficient solubility of organic solvents and compatibility of binding resins, difficulties in containing sufficient amounts of photosensitive layers, and difficulty Solve problems such as sensitivity characteristics, achieve excellent sensitivity characteristics, and improve the effect of sensitivity characteristics

Inactive Publication Date: 2010-08-11
KYOCERA DOCUMENT SOLUTIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] However, the naphthalenetetracarboxylic acid diimide derivatives of Patent Document 1 are asymmetrically constituted in molecular structure, which can improve solubility in organic solvents and compatibility with binder resins to some extent, but are not effective in organic solvents. Solubility and compatibility with binder resins are not sufficient
[0010] Therefore, in the electrophotographic photoreceptor, not only is it difficult to obtain sufficient sensitivity characteristics, but also the naphthalene tetracarboxylic acid diimide derivative crystallizes in the photosensitive layer, and it is difficult to contain a sufficient amount in the photosensitive layer. Happening

Method used

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  • Electrophtography photosensor and image forming device
  • Electrophtography photosensor and image forming device

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no. 1 approach

[0043] The first embodiment is an electrophotographic photoreceptor having a photosensitive layer containing a binder resin, an electron transport agent, and a charge generator, wherein the electron transport agent contains naphthalene tetracarboxylic acid diamide represented by the general formula (1). imine derivatives.

[0044] Hereinafter, the electrophotographic photoreceptor according to the first embodiment of the present invention will be specifically described mainly taking a single-layer electrophotographic photoreceptor as an example.

[0045] 1. Basic composition

[0046] The electrophotographic photoreceptor 10 of the present invention is preferably such as figure 1 (a) shows a single-layer electrophotographic photoreceptor 10 in which a single-layer photosensitive layer 14 containing a charge generator, a charge transport agent, and a binder resin is provided on a substrate 12 .

[0047] The reason for this is that an electrophotographic photoreceptor having a ...

no. 2 approach

[0172] A second embodiment is an image forming apparatus comprising the electrophotographic photoreceptor described in the first embodiment, and a charging unit, an exposure unit, a developing unit, a transfer unit, and a fixing unit are disposed around the electrophotographic photoreceptor. unit.

[0173] Hereinafter, the second embodiment will be specifically described focusing on the points different from those described in the first embodiment.

[0174] As the image forming apparatus of the present invention, it is suitable to use such as image 3 Copier 30 is shown. The copier 30 includes an image forming unit 31 , a paper discharge unit 32 , an image reading unit 33 , and a document conveyance unit 34 . Furthermore, the image forming unit 31 has an image forming unit 31 a and a paper feeding unit 31 b. Furthermore, in the illustrated example, the document conveyance unit 34 has a document set tray 34a, a document conveyance mechanism 34b, and a document output tray 34...

Embodiment 1

[0185] 1. Preparation of naphthalene tetracarboxylic acid diimide derivatives

[0186] The naphthalene tetracarboxylic acid diimide derivative (ETM-1) represented by the formula (2) was prepared according to the following reaction formula (2).

[0187]

[0188] That is, 2.68 g (10 moles) of naphthalene tetracarboxylic acid compound represented by formula (8), 3.18 g (20 moles) of amino acid derivative represented by formula (9), and 100 ml of picoline as a reaction solvent were contained in In a container equipped with a reflux machine, it was stirred and refluxed for 5 hours under an environment of 140° C. to obtain a reaction liquid.

[0189] Next, the product was precipitated by injecting the obtained reaction solution into water, and the product was collected by filtration.

[0190] Then, the filtered product was purified by column chromatography to obtain 2.2 g (yield 40%) of a naphthalene tetracarboxylic diimide derivative (ETM-1) represented by formula (2).

[0191...

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Abstract

The invention realizes an electrophotography photosenor having excellent photosensitivity, and an image forming device having the photosenor. The electrophotography photosenor of the invention includes a photosensitive layer containing bonding resin, electron transport agent and charge generating agent, and characterized in that: the electron transport agent contains derivatives of tetrabasic naphthalene diimide represented by the formula 1.

Description

technical field [0001] The present invention relates to an electrophotographic photoreceptor and an image forming device. In particular, it relates to an electrophotographic photoreceptor having excellent sensitivity characteristics and an image forming apparatus including the electrophotographic photoreceptor. Background technique [0002] Currently, an organic photoreceptor (OPC) having a photosensitive layer containing a binder resin formed of an organic material, a charge generating agent, a charge transporting agent (hole transporting agent, electron transporting agent), etc. Photographic photoreceptor. [0003] Compared with conventional inorganic photoreceptors, such an organic photoreceptor is easier to manufacture and has a variety of options for photoreceptor materials, so it has the advantage of a greater degree of freedom in structural design. [0004] However, electron transport agents, one of the materials used in organic photoreceptors, generally have insuff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G5/06
Inventor 冈田英树菅井章雄
Owner KYOCERA DOCUMENT SOLUTIONS INC
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