Charging device, and process cartridge and image forming...

Details Charging device, and process cartridge and image forming... Charging device, and process cartridge and image forming...

2007-05-15

2007-05-15

Chen, Sophia S. (Department: 2852)

Electrophotography

Internal machine environment

Particle or contaminant control

C015S256520, C399S176000

Reexamination Certificate

active

11392565

ABSTRACT:
A charging device including a charging roller having a metal cylinder and an elastic layer located thereon, and a cleaner for cleaning the surface of the charging roller. The cleaner includes a driving shaft and a cleaning roller which is rotatably mounted on the driving shaft. The cleaning roller is made of a non-cellular foam resin having a density of from 5 to 15 kg/m3and a tensile strength of from 1.2 to 2.2 kg/cm2.

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U.S. Appl. No. 11/477,598, filed Jun. 30, 2006, Yanagida et al.
U.S. Appl. No. 11/392,565, filed Mar. 30, 2006, Yanagida et al.

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