| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a toner with which an image of high printing density can be obtained without fog, thinning or filming even for long-term repeated printing in various environments even when recycled paper is used as the transfer material. SOLUTION: The toner is obtained by adding as external additives magnetite particles having 1×104 to 1×1012Ω.cm volume specific resistance, organic fine particles having -100 to -400μC/g blow-off charge amount and if necessary other fine particles to color particles having 1.0 to 1.3 sphericity.</p> |
