| 摘要 |
PROBLEM TO BE SOLVED: To optimize the amount of a colorant and an external additive added to a toner to form high-quality images.SOLUTION: A toner is formed by externally adding an external additive to a non-external addition toner including at least a binder resin and a colorant, and has a volume average particle diameter of 2μm or more and 5μm or less. The non-external addition toner contains 10 parts by weight or more and 20 parts by weight or less of the colorant relative to 100 parts by weight of the binder resin, and 3 parts by weight or more and 7 parts by weight or less of the external additive is externally added relative to 100 parts by weight of the non-external addition toner. |
