| 摘要 |
PROBLEM TO BE SOLVED: To provide a negatively triboelectrified toner capable of stably obtaining high image quality even in the case of using in low and high humidities and prevented from occurrence of image defect even during lapse of time. SOLUTION: This negatively triboelectrified toner comprises at least a binder resin and a colorant and an organic metal compound characterized by being an organic zirconium compound obtd. by coordinating or/and combining zirconium with an aromatic compound selected from a group comprising aromatic diol, aromatic hydroxycarboxic acid, aromatic monocarboxylic acid, and aromatic polycarboxylic acid. |
