Electrostatic charging member and photoconductor device

Details Electrostatic charging member and photoconductor device Electrostatic charging member and photoconductor device

1995-08-30

1997-08-19

Royer, William J.

Electrophotography

Image formation

Charging

361221, G03G 1502

Patent

active

056598548

ABSTRACT:
A charging device for electrically charging a photoconductor drum includes a charging member adapted to be placed in contact with the drum and an element for applying voltage between the charging member and the drum. The charging member has a microhardness of 1-65 degrees at its surface in contact with the drum or at least a surface layer of the charging member in contact with the drum is formed of a polyurethane which is prepared from liquid MDI as an isocyanate component and a polyol.

REFERENCES:
patent: 5455661 (1995-10-01), Yoshida et al.

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