Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus

• US 9,921,498 B2
• Filed: 06/20/2016
• Issued: 03/20/2018
• Est. Priority Date: 06/25/2015
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Sekido, Kunihiko, Nishi, Masashi, Sekiya, Michiyo, Tagami, Kei
• Primary Examiner(s): Rodee, Christopher D
• Application Number:
  US15/186,749
• Publication Number:
  US 20160377998A1
• Time in Patent Office: 638 Days
• CPC Class Codes: G03G 15/75 Details relating to xerographic drum, band or plate, e.g. replacing, testing electrographic recording members per se G03G5/00
• CPC Class Codes: G03G 21/18 using a processing cartridge , whereby the process cartridge comprises at least two image processing means in a single unit
• CPC Class Codes: G03G 5/04 Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
• CPC Class Codes: G03G 5/065 containing three relevant rings
• CPC Class Codes: G03G 5/0657 containing seven relevant rings
• CPC Class Codes: G03G 5/142 Inert intermediate layers

Abstract

Provided is an electrophotographic photosensitive member including a support, an undercoat layer formed on the support, and a photosensitive layer formed on the undercoat layer, in which the undercoat layer contains a polymer of a composition containing a compound represented by the formula (1).

Claims

1. An electrophotographic photosensitive member, comprising:

a support;

an undercoat layer formed on the support; and

a photosensitive layer formed on the undercoat layer, wherein

the undercoat layer contains a polymer of a composition containing a crosslinking agent, a resin having a polymerizable functional group and a compound represented by formula (1);

2. An electrophotographic photosensitive member according to claim 1, wherein the alkyl group represented by R² comprises a branched alkyl group.

3. An electrophotographic photosensitive member according to claim 1, wherein the crosslinking agent comprises one of an isocyanate compound having one of an isocyanate group and a blocked isocyanate group, and an amine compound having one of an N-methylol group and an alkyl-etherified N-methylol group.

4. A process cartridge, comprising:

an electrophotographic photosensitive member; and

at least one unit selected from the group consisting of a charging unit, a developing unit, and a cleaning unit,

the process cartridge integrally supporting the electrophotographic photosensitive member and the at least one unit,

the process cartridge being removably mounted onto an electrophotographic apparatus, wherein

the electrophotographic photosensitive member comprises;

a support;

an undercoat layer formed on the support; and

a photosensitive layer formed on the undercoat layer, the undercoat layer containing a crosslinking agent, a resin having a polymerizable functional group and a polymer of a composition containing a compound represented by formula (1);

5. An electrophotographic apparatus, comprising at least:

an electrophotographic photosensitive member;

a charging unit;

an exposing unit;

a developing unit; and

a transferring unit, wherein

the electrophotographic photosensitive member comprises;

a support;

an undercoat layer formed on the support; and

a photosensitive layer formed on the undercoat layer, the undercoat layer containing a crosslinking agent, a resin having a polymerizable functional group and a polymer of a composition containing a compound represented by formula (1);