Carrier for use in electrophotography, two component-type develo

Details Carrier for use in electrophotography, two component-type develo Carrier for use in electrophotography, two component-type develo

1993-07-28

1995-08-08

Martin, Roland

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Post imaging process, finishing, or perfecting composition...

430108, 430111, G03G 9107

Patent

active

054397715

ABSTRACT:
A two component-type developer for electrophotography showing improved electrophotographic performances and also free from carrier adhesion (undesirable carrier transfer to the photosensitive member and recording materials) is constituted by using a magnetic carrier comprising a soft magnetic material of 5-100 .mu.m in particle size. The carrier has a bulk density of at most 3.0 g/cm.sup.3, and magnetic properties including: a magnetization of 30-150 emu/cm.sup.3 under a magnetic field strength of 1000 oersted, and relationships (1) and (2):

REFERENCES:
patent: 2297691 (1942-10-01), Carlson
patent: 3666363 (1972-05-01), Tanaka et al.
patent: 4071361 (1978-01-01), Marushima
patent: 4600675 (1986-07-01), Iwasa et al.
patent: 4898801 (1990-02-01), Tachibana et al.
patent: 5268249 (1993-12-01), Saha et al.

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