| 摘要 |
An electrophotographic toner having polymeric binder and a charge control agent selected from the group consisting of sulfonamides having the general structure: <IMAGE> Each R1 is independently O, S, N-H, N-Rz, or N-L-Rz; where L is a linking group selected from: <IMAGE> and Rz is independently selected from the group consisting of alkyl having from 1 to 20 carbons, cycloalkyl having from 3 to 18 carbons, and aromatic and heteroaromatic ring systems having a solitary ring or 2 to 3 linked or fused rings. Ra, Rb, and Rc are each independently a ring system of a single ring or 2 or 3 fused or linked rings, said ring system having from 3 to 34 carbons, including substituent carbons. d is an integer from 0 to 3. e is an integer from 0 to 3. The sum of d+e is 2 or 3.
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