Patent ID: 6110634
Filing Date: 2000-08-29
Classification: G03G

Abstract:
An electrophotographic toner comprising a binder resin and a compound of zirconium complex or salt as a charge control agent, wherein the binder resin has an acid value in the range of from 0.09 to 50, and the charge control agent is a compound represented by the Formula (1): ##STR21## wherein R.sub.1 is quaternary carbon, methine or methylene, and may contain a hetero atom of N, S, O or P, and forms a cyclic structure linked by saturated bond(s) or unsaturated bond(s), each of R.sub.2 and R.sub.3 which are independent of each other, is an alkyl group, an alkenyl group, an alkoxy group, an aryl, aryloxy, aralkyl or aralkyloxy group which may have a substituent, a halogen group, hydrogen, a hydroxyl group, an amino group which may have a substituent, a carboxyl group, a carbonyl group, a nitro group, a nitroso group, a sulfonyl group or a cyano group, R.sub.4 is hydrogen or an alkyl group, 1 is 0 or an integer of from 1 to 12, m is an integer of from 1 to 20, n is 0 or an integer of from 1 to 20, o is 0 or an integer of from 1 to 4, p is 0 or an integer of from 1 to 4, r is an integer of from 1 to 20, and s is an integer of from 1 to 20.