Developing agent

Details Developing agent Developing agent

1998-09-17

2000-12-05

RoDee, Christopher D.

Radiation imagery chemistry: process, composition, or product th

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

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

4301066, 430108, 430110, G03G 9097

Patent

active

061564699

ABSTRACT:
A developing agent exhibiting satisfactory negative charging characteristics can be obtained by allowing the developing agent to contain a toner, which contains a predetermined 2:1 type metal complex salt dye as a charge control agent or as a coloring agent, and carrier particles represented by general formula (MO).sub.X (Fe.sub.2 O.sub.3).sub.Y, obtained by using a kneaded mixture containing predetermined 2:1 type metal complex salt compound particles and a binder resin to have an average particle diameter of 0.2 .mu.m or less, or by allowing a binder resin to contain in advance a low molecular weight wax in manufacturing a developing agent containing a predetermined 2:1 type metal complex salt compound.

REFERENCES:
patent: 4562136 (1985-12-01), Inoue et al.
patent: 4624907 (1986-11-01), Niimura et al.
patent: 5700616 (1997-12-01), Kasuya et al.
patent: 5707770 (1998-01-01), Tanikawa et al.
Macholdt, Hans-Tobias et al. "Charging Effects of Organic Pigments in Electrophotographic Toners", Dyes and Pigments, vol. 9, pp. 119-127, 1988.
Diamond, Arthur S. (editor) Handbook of Imaging Materials. New York: Marcel-Dekker, Inc. pp. 182-191, 208-215, 222, and 223, 1991.
S.T. Yahukin, 35 (7), pp. 186-198, Sato et al.:1990.

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