Electrophotographic developing powder

Details Electrophotographic developing powder Electrophotographic developing powder

1991-10-25

1992-11-17

Goodrow, John

Radiation imagery chemistry: process, composition, or product th

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

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

4301066, 430108, G03G 9097

Patent

active

051642832

ABSTRACT:
An electrophotographic developing powder comprising a resin, a coloring agent and a compound of the following formula, as a charge-controlling agent: ##STR1## wherein X is sodium or potassium, and M is a chromium or cobalt atom.

REFERENCES:
patent: 4824751 (1989-04-01), Matuura et al.
patent: 4857432 (1989-08-01), Tanikawa
patent: 4954409 (1990-09-01), Aoki et al.
Patent Abstracts of Japan, vol. 12, No. 133 (P-693)[2980], Apr. 22, 1988; & JP-A-62 255 958, (Nippon), Jul. 11, 1987, *Whole abstract*.
Patent Abstracts of Japan, vol. 12, No. 29 (P-660) [2876], Jan. 28, 1988; & JP-A-62 182 752, (Konishiroku), Aug. 11, 1987, *Whole abstract*.

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