发明授权
US09274447B2 Two-component color developer and image formation device using same 有权
双组分彩色显影剂和使用它的成像装置

Two-component color developer and image formation device using same
摘要:
A two-component color developer containing a toner and a resin-coated carrier, the toner containing at least a polyester resin as a binding resin, an organic pigment as a colorant and inorganic fine particles as an external additive, wherein the inorganic fine particles have a negative polarity, the toner has a volume resistivity of 40×109 to 220×109 Ωcm and a negative polarity, and the carrier has a coat durability of 90% or greater.
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