Patent ID: 11921437
Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC G  C | IPC G

Claim 0:
1. A charging member for an electrophotographic image forming apparatus, the charging member comprising:
a surface layer formed on a conductive elastic body layer formed on a conductive support, wherein
the conductive elastic body layer includes a conducting agent;
the surface layer includes a urethane resin, an electron conducting agent, an azo-based metal complex compound, and a quaternary ammonium salt, and
the azo-based metal complex compound is represented by Formula (1) below:, where X1, X2, X3, and X4 each independently represent a substituted or unsubstituted phenylene group, a substituted or unsubstituted naphthalenylene group, or a substituted or unsubstituted pyrazolenylene group, M represents Fe, Cr, or Al, and Q1+ represents a monovalent cation.