An electrophotographic toner containing a quaternary ammonium salt having the formula:
wherein each of R₁ and R₂ is a long chain alkyl group having from 8 to 22 carbon atoms or a long chain alkenyl group having from 8 to 22 carbon atoms, R₃ is an alkyl group having from 1 to 4 carbon atoms, R₄ is an alkyl group having from 1 to 4 carbon atoms or a benzyl group and A⊖ is an anion.
一种含有季
铵盐的电子照相调色剂,其式如下: 其中 R₁ 和 R₂ 均为具有 8 至 22 个碳原子的长链烷基或具有 8 至 22 个碳原子的长链烯基,R₃ 为具有 1 至 4 个碳原子的烷基,R₄ 为具有 1 至 4 个碳原子的烷基或苄基,A⊖ 为阴离子。