Developing device and developing roller therefor

Details Developing device and developing roller therefor Developing device and developing roller therefor

1998-08-25

2000-05-30

Pendegrass, Joan

Electrophotography

Image formation

Development

492 8, G03G 1509, H01F 1300

Patent

active

060700386

ABSTRACT:
A developing roller is made up of a magnet member and a sleeve surrounding the magnet member. A sophisticated magnetic characteristic including a repulsive pole can be easily formed on the surface of the sleeve. The repulsive pole causes a developer to be sharply released from the surface of the sleeve. A developing device including the developing roller is also disclosed.

REFERENCES:
patent: 5244741 (1993-09-01), Nagano et al.

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