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Organic photoreceptor for short wavelengths and electrophotographic imaging forming apparatus employing the organic photoreceptor

An electrophotographic and imaging device technology, which can be applied to an electrical recording process using a charge pattern, equipment and optics for an electrical recording process applying a charge pattern, and can solve problems such as incompatibility.

Inactive Publication Date: 2008-01-16
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Referring to FIG. 1, relatively high light absorption occurs in the wavelength range of 400-500 nm, so the compounds represented by formula i and formula ii are not suitable as electron transport materials used in high-resolution printers using short-wavelength light

Method used

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  • Organic photoreceptor for short wavelengths and electrophotographic imaging forming apparatus employing the organic photoreceptor
  • Organic photoreceptor for short wavelengths and electrophotographic imaging forming apparatus employing the organic photoreceptor
  • Organic photoreceptor for short wavelengths and electrophotographic imaging forming apparatus employing the organic photoreceptor

Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment 1

[0092] Preparation Example 1: Compound of Synthetic Formula 2

[0093]

[0094] A 250ml three-necked flask equipped with a reflux condenser was purged with nitrogen, and then 10.72g (0.04mol) of 1,4,5,8-naphthalenetetracarboxylic anhydride and 100ml of DMF were poured into the flask and stirred. Then, a solution obtained by dissolving 9.7 g (0.08 mol) of α-methylbenzylamine in 20 ml of DMF was added dropwise, and the reaction compound was stirred in the reaction mixture. The solution was heated to 153°C-154°C, then refluxed for 3 hours, then cooled to room temperature again. 60 ml of methanol was added to the reaction mixture, followed by precipitation to obtain a solid. The resulting solid was recrystallized from a chloroform / methanol solvent and dried under vacuum to obtain 15.37 g of the compound of formula 2 as white crystals (yield 81%).

preparation Embodiment 2

[0095] Preparation Example 2: Compound of Synthetic Formula 3

[0096]

[0097] Using the same method as in Synthetic Example 1, except that 10.82g (0.08 moles) of 1-phenylpropylamine was used instead of α-methylbenzylamine, the compound of 15.86g of formula 3 was obtained as white crystals (yield 79%).

experiment example 1

[0099] The light absorption of the ETMs of Formulas 2 and 3 obtained in Preparation Examples 1 and 2 were measured and illustrated in FIG. 3 . It is apparent from FIG. 3 that, compared with FIG. 1 , the light absorption of the ETM of the present embodiment in the range of 400-500 nm is lower than that of the conventional ETM.

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Abstract

An organic photoreceptor and an electrophotographic image forming apparatus employing the organic photoreceptor are provided, where the organic photoreceptor has high photosensitivity with respect to light radiation at short wavelengths and low exposure potential. Specifically, an organic photoreceptor for short wavelengths having a photosensitive layer including a naphthalene tetracarboxylic acid diimide derivative is formed on an electrically conductive substrate.

Description

technical field [0001] The present invention relates to an organic photoreceptor and an electrophotographic image forming device using the organic photoreceptor. In particular, the present invention relates to an organic photoreceptor for short wavelengths, which has high photosensitivity and low exposure potential with respect to short wavelength light radiation. The present invention also relates to an electrophotographic image forming device using the organic photoreceptor. Background technique [0002] Electrophotography is widely used in laser printers, photocopiers, and the like. An organic photoreceptor in electrophotography includes a photosensitive layer formed on a conductive substrate, and may be in the form of a plate, a disk, a sheet, a belt, a drum, or the like. In an organic photoreceptor, the surface of a photosensitive layer is first uniformly electrostatically charged, and then the charged surface is exposed to a light pattern, thereby forming an image. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G5/06G03G5/07G03G21/18G03G15/00
CPCG03G5/0651G03G5/04G03G5/06
Inventor 金范俊李知英横田三郎牧野要
Owner SAMSUNG ELECTRONICS CO LTD