Patent · US Expired

Charging device having charging member, process cartridge and image forming apparatus

US5235386A · kind A · utility

35Cited by

7References

20Claims

0Family size

Assignee

Canon Kabushiki Kaisha · JP

Inventors

Hideyuki Yano · Yokohama, JP
Koichi Tanigawa · Tokyo, JP
Akihiko Takeuchi · Susono, JP
Hiroshi Sasame · Yokohama, JP
Yasumasa Ohtsuka · Yokohama, JP
Takayasu Yuminamochi · Shizuoka, JP
Hiroto Hasegawa · Kawasaki, JP
Hideo Nanataki · Yokohama, JP
Kazuaki Ono · Kashiwa, JP

Key dates

Filing date	Feb 21, 1992
Grant date	Aug 10, 1993
Priority date	—
Expiry date	Feb 21, 2012

Classification

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

Abstract

A charging device including a movable member to be charged, and a charging member which is contactable to the member to be charged so as to charge the member to be charged, wherein the coefficient of dynamic friction between the member to be charged and a surface of the charging member contactable to the member to be charged is not lower than 0.4.

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