Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus

• US 9,535,347 B2
• Filed: 08/25/2014
• Issued: 01/03/2017
• Est. Priority Date: 11/30/2011
• Status: Active Grant

• Current Assignee: Canon Ayutthaya Limited (Canon Inc.)
• Original Assignee: Canon Ayutthaya Limited (Canon Inc.)
• Inventors: Watariguchi, Kaname, Murakami, Takeshi, Kawahara, Masataka, Tanaka, Masato, Yoshida, Akira
• Primary Examiner(s): RODEE, CHRISTOPHER D
• Application Number:
  US14/468,266
• Publication Number:
  US 20140363759A1
• Time in Patent Office: 862 Days
• Field of Search: 430/60, 430/59.4, 430/58.75, 430/58.5, 430/59.1, 399/111, 399/159
• US Class Current: 1/1
• CPC Class Codes: G03G 5/14 Inert intermediate or cover layers for charge-receiving layers G03G5/04 takes precedence
• CPC Class Codes: G03G 5/142 Inert intermediate layers

Abstract

In order to provide an electrophotographic photosensitive member with which a ghost is suppressed even under a low temperature and low humidity environment, and a process cartridge and an electrophotographic apparatus having the electrophotographic photosensitive member, the electrophotographic photosensitive member has a support, an undercoat layer formed on the support, and a photosensitive layer formed on the undercoat layer and comprising a charge generating material and a hole transporting material, wherein the undercoat layer comprises a particular amine compound.

Claims

1. An electrophotographic photosensitive member comprising:

a support;

an undercoat layer on the support, comprising an amine compound (2),

2. The electrophotographic photosensitive member according to claim 1, wherein the content of the amine compound (2) in the undercoat layer is 0.05 to 15% by mass.

3. The electrophotographic photosensitive member according to claim 2, wherein the charge generating material is hydroxygallium phthalocyanine.

4. The electrophotographic photosensitive member according to claim 3, where said undercoat layer has a thickness of 0.1 to 30.0 μ

m.

5. The electrophotographic photosensitive member according to claim 4, wherein said charge generation layer has a thickness of 0.05 to 5 μ

m.

6. The electrophotographic photosensitive member according to claim 5, wherein said hole transport layer has a thickness of 5 to 40 μ

m.

7. The electrophotographic photosensitive member according to claim 6, wherein the content of the amine compound (2) in the undercoat layer is 0.1 to 10% by mass.

8. The electrophotographic photosensitive member according to claim 1, wherein the charge generating material is hydroxygallium phthalocyanine.

9. A process cartridge that integrally supports the electrophotographic photosensitive member according to claim 1, and at least one unit selected from the group consisting of a charging unit, a developing unit, a transfer unit and a cleaning unit, and that is detachably mountable to a main body of an electrophotographic apparatus.

10. An electrophotographic apparatus having the electrophotographic photosensitive member according to claim 1, and a charging unit, an image exposure unit, a developing unit and a transfer unit.