Magnet roller and developing roller using the same

Details Magnet roller and developing roller using the same Magnet roller and developing roller using the same

1998-08-19

1999-08-31

Moses, Richard

Electrophotography

Image formation

Development

492 8, 492 18, G03G 1509

Patent

active

059465352

ABSTRACT:
Disclosed is a highly noiseless magnet roller capable of reducing occurrence of noise upon operation as much as possible. The magnet roller includes a magnet main body and a shaft portion projecting from each or either of both ends of the magnet main body, wherein the magnet main body and the shaft portion are integrally molded from a bond magnet composition in which a magnetic powder is dispersed in a resin binder. In this magnet roller, the roundness of the shaft portion is specified to be in a range of 30 .mu.m or less.

REFERENCES:
patent: 5554479 (1996-09-01), Ochiai et al.
patent: 5842962 (1998-12-01), Yamada et al.
English Abstract of Japanese Document JP 63030875A, Feb. 1988.
English Abstract of Japanese Document JP 08202133A, Aug. 1996.

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