Electrophotographic photoreceptor, process cartridge, and image forming apparatus

Patent metadata

Field	Value
Publication number	US-9250545-B2
Application number	US-201414475799-A
Country	US
Kind code	B2
Filing date	Sep 3, 2014
Priority date	Mar 24, 2014
Publication date	Feb 2, 2016
Grant date	Feb 2, 2016

Abstract

An electrophotographic photoreceptor includes a conductive substrate and a single-layered photosensitive layer formed so as to overlie the conductive substrate, the photosensitive layer containing a binder resin, a charge-generating material, a hole-transporting material, an electron-transporting material represented by General Formula (1), and at least one compound selected from a compound represented by General Formula (2) and a compound represented by General Formula (3). The amount of the at least one compound selected from the compound represented by General Formula (2) and the compound represented by General Formula (3) is in the range of approximately 10 parts by weight to 100 parts by weight in total relative to 100 parts by weight of the electron-transporting material represented by General Formula (1).

First claim

What is claimed is:

1. An electrophotographic photoreceptor comprising:
a conductive substrate; and
a single-layered photosensitive layer formed so as to overlie the conductive substrate, the photosensitive layer containing a binder resin, a charge-generating material, a hole-transporting material, an electron-transporting material represented by Formula (1), a compound represented by Formula (2), and a compound represented by Formula (3), wherein
the amount of the compound represented by Formula (2) and the compound represented by Formula (3) is in the range of approximately 10 parts by weight to 100 parts by weight in total relative to 100 parts by weight of the electron-transporting material represented by Formula (1),

where R 11 , R 12 , R 13 , R 14 , R 15 , R 16 , and R 17 each independently represent a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an aryl group, or an aralkyl group; and R 18 represents an alkyl group, -L 41 -O—R 42 , an aryl group, or an aralkyl group, where L 41 represents an alkylene group, and R 42 represents an alkyl group,

where R 21 , R 22 , R 23 , R 24 , R 25 , R 26 , and R 27 each independently represent a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an aryl group, or an aralkyl group; and R 28 represents an alkyl group, -L 51 -O—R 52 , an aryl group, or an aralkyl group, where L 51 represents an alkylene group, and R 52 represents an alkyl group, and

where R 31 and R 32 each independently represent an alkyl group, -L 61 -O—R 62 , an aryl group, or an aralkyl group, where L 61 represents an alkylene group, and R 62 represents an alkyl group.

2. The electrophotographic photoreceptor according to claim 1 , wherein the amount of the compound represented by Formula (2) and the compound represented by Formula (3) is in the range of approximately 15 parts by weight to 80 parts by weight in total relative to 100 parts by weight of the electron-transporting material represented by Formula (1).

3. The electrophotographic photoreceptor according to claim 1 , wherein the amount of the compound represented by Formula (2) and the compound represented by Formula (3) is in the range of approximately 25 parts by weight to 60 parts by weight in total relative to 100 parts by weight of the electron-transporting material represented by Formula (1).

4. The electrophotographic photoreceptor according to claim 1 , wherein the amount of the compound represented by Formula (2) is in the range of approximately 10 parts by weight to 50 parts by weight relative to 100 parts by weight of the electron-transporting material represented by Formula (1).

5. The electrophotographic photoreceptor according to claim 1 , wherein the amount of the compound represented by Formula (2) is in the range of approximately 15 parts by weight to 40 parts by weight relative to 100 parts by weight of the electron-transporting material represented by Formula (1).

6. A process cartridge comprising the electrophotographic photoreceptor according to claim 1 , wherein
the process cartridge is configured so as to be detachable from an image forming apparatus.

7. An image forming apparatus comprising:
the electrophotographic photoreceptor according to claim 1 ;
a charging unit that serves for charging the surface of the electrophotographic photoreceptor;
an electrostatic latent image-forming unit that serves for forming an electrostatic latent image on the charged surface of the electrophotographic photoreceptor;
a developing unit that serves for developing the electrostatic latent image on the surface of the electrophotographic photoreceptor with a developer containing toner to form a toner image; and
a transfer unit that serves for transferring the toner image to the surface of a recording medium.

Assignees

• Fuji Xerox Co Ltd

Inventors

• Iwasaki Masahiro

Classifications

• G03G5/0605

  Carbocyclic compounds · CPC title

• G03G5/0517

  comprising one or more cyclic groups consisting of carbon-atoms only · CPC title

• G03G5/0609

  containing oxygen · CPC title

• G03G5/0607

  containing at least one non-six-membered ring · CPC title

• G03G5/0618 Primary

  containing oxygen and nitrogen · CPC title