US 9,581,931 B2 · Electrophotographic member, process cartridge, and electrophotographic apparatus

Abstract

Provided is an electrophotographic member conducive to the formation of a high-quality electrophotographic image, the member showing a small increase in resistance even after long-term electrification under a high-temperature and high-humidity environment, and a process cartridge and an electrophotographic apparatus each including the electrophotographic member as a charging member and/or a developer carrying member. Specifically, provided is an electrophotographic member including a substrate and an electro-conductive layer, in which the electro-conductive layer contains a resin having a structure unit represented by the following structural formula (1) and a specific anion: in the structural formula (1), R1 represents a hydrogen atom or a methyl group, and Z represents a cationic organic group.

Claims6

Dependent claims

An electrophotographic member, comprising:

a substrate;
and
an electro-conductive layer, the electro-conductive layer comprising a binder resin, an anion and a resin having a structure unit represented by formula (1)
where R1 represents a hydrogen atom or a methyl group, and Z represents a cationic organic group, wherein
said anion is at least one member selected from the group consisting of a fluorinated sulfonylimide anion, a fluorinated sulfonylmethide anion, a fluorinated sulfonate anion, a fluorinated carboxylate anion, a fluorinated borate anion, a fluorinated phosphate anion, a fluorinated arsenate anion, a fluorinated antimonate anion, a dicyanamide anion and a bis(oxalato)borate anion, and
a content of the resin having a structure unit represented by formula (1) is 1 to 10 parts by mass with respect to 100 parts by mass of the binder resin.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

14/708,940Filed 11 May 2015

Priority

JP 2014-10265416 May 2014

Published

US 2015/0331343 A119 Nov 2015

Granted

28 Feb 2017

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

G03G 15/08
For developing: using a solid developer, e.g. powder developer
G03G 5/0528
Organic bonding materials; Methods for coating a substrate with a photoconductive layer; Inert supplements for use in photoconductive layers:…
G03G 15/02
Apparatus for electrographic processes using a charge pattern: for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
G03G 15/0233
By bringing a charging member into contact with the member to be charged, e.g. roller, brush chargers: structure, details of the charging member,…

Electrophotographic member, process cartridge, and electrophotographic apparatus

Life of this patent

Electrophotographic member, process cartridge, and electrophotographic apparatus

Life of this patent

Abstract

Claims6