Patent Number: 6,167,219

Title: Grounding member, flange, photosensitive drum, process cartridge and electrophotographic image forming apparatus

Abstract: An electrical grounding member for an electrophotographic photosensitive drum, includes a base plate; a hole formed in a substrate, for receiving a conduction shaft for supporting the electrophotographic photosensitive drum; a first contact portion provided in the base plate and elastically contactable to the conduction shaft; a second contact portion, provided in the base plate, for elastically contacting an inner surface of a cylinder of the electrophotographic photosensitive drum; a third contact portion, provided in the base plate, for elastically contacting an inner surface of a cylinder of the electrophotographic photosensitive drum. The second contact portion and third contact portion are disposed at symmetrical positions relative to each other with respect to a center line of a contact portion between the first contact portion and the conduction shaft.

Inventors: Miyamoto; Jun (Mishima, JP), Miyabe; Shigeo (Numazu, JP), Miura; Kouji (Mishima, JP)

Assignee: Canon Kabushiki Kaisha

International Classification: G03G 15/00 (20060101); G03G 015/00 ()

Expiration Date: 12/26/2017