Patent · US Active

Charging member, manufacturing method therefor, and electrophotographic apparatus

US8923732B2 · kind B2 · utility

13Cited by

4References

11Claims

0Family size

Assignee

Canon Kabushiki Kaisha · JP

Inventors

Masaaki Harada · Yokohama, JP
Hiroaki Watanabe · Yokohama, JP
Keiji Nose · Nara, JP

Key dates

Filing date	Jul 2, 2012
Grant date	Dec 30, 2014
Priority date	—
Expiry date	Dec 29, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG03G15/0233
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Provided is a charging member capable of suppressing occurrence of compression set while having flexibility enough to ensure a nip with a photosensitive member. The charging member comprises a support and an elastic layer, wherein the elastic layer has an MD-1 hardness of from 55 to 85° at the surface thereof, and has a universal hardness of 2.0 to 20.0 N/mm2 at an indentation depth of 5 μm from the surface thereof.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.