| 摘要 |
PURPOSE:To obtain a toner superior in chargeability, humidity resistance, and long-term stability, and high in image forming performance by incorporating a specified N-contg. org. compd. as a charge controller. CONSTITUTION:A toner is raised in specific chargeability, enhanced in long-term stability, and humidity resistance, and made extremely excellent in repetitive image forming performance by incorporating as a charge controller a compd. such as formula II or III, and represented by general formula I in which R1 is 1-9C straight or branched alkyl, 4-9C alkoxyalkyl, cyclohexyl, or phenyl optionally substd. by methyl, ethyl, methoxy, or ethoxy; R2 is 1-4C alkyl, or 3-6C alkoxyalkyl; and X is H or -OR2. Since compd. of formula I is colorless, the hue of the toner can be optionally controlled by using a colorant in combination. |
