| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide the negatively chargeable toner and the image forming method restrained from drop of cleanability performance, chargeability performance against toner size reduction tendency in accordance with needs of image quality enhancement, that is, capable of enhancing all of image quality and reliability and durability. SOLUTION: The negatively chargeable toner comprises the toner composed of at least a binder resin and a colorant and outer additives of fine organic particles having a volume average particle diameter of 0.1-20μm and further, an alkylcarboxylic acid having a number average molecular weight (Mn) of 300-800 and an average C number of 22-55 and/or an acid value of 50-130 mgKOH/g.</p> |
