Charging member, process cartridge and image forming apparatus

Details Charging member, process cartridge and image forming apparatus Charging member, process cartridge and image forming apparatus

1993-09-07

1995-01-24

Pendegrass, Joan H.

Photocopying

Contact printing

Light boxes

355210, 361225, G03G 1502

Patent

active

053846265

ABSTRACT:
A charging member for charging a member to be charged while being in contact therewith includes conductive base for being supplied with a voltage; a surface layer contactable to the member to be charged; a sponge layer between the conductive base and the surface layer; a 100% modulus M.sub.100 (kg/cm.sup.2) of the surface layer and a thickness d (cm) of the surface layer satisfied:

REFERENCES:
patent: 3936170 (1976-02-01), Shibano et al.
patent: 4309803 (1982-01-01), Blaszak
patent: 4727453 (1988-02-01), Ewing
patent: 5243387 (1993-09-01), Ikegawa

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