| 简介 |
A toner composition includes toner particles and additives disposed on an exterior surface of the toner particles, the additives include uncoated particles satisfying the equation :
[in-line-formulae]14.428−1.793×density(g/cm3)−1, 363, 353×conductivity(ohm·cm−1)≦6; [/in-line-formulae]
surface-treated silica, surface-treated titania, and spacer particles, the toner composition is substantially free of a rare earth compound and the uncoated particles are present in a sufficient amount to reduce bias charge roller contamination. |
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