Back to results
US 5,176,979 AGranted
Electrophotographic toner having a surface treated silica particle
AssigneeFuji Xerox Co., Ltd.
InventorsAtuhiko Eguchi, Ikutaroh Nagatsuka, Takayoshi Aoki
Life of this patent
Estimating the term…
Abstract
A positively chargeable electrophotographic toner excellent in powder fluidity, circumstance dependency and durability is disclosed. The toner comprises a toner particle and a silica fine particle the surface of which is treated with a substantially water-insoluble or sparingly water-soluble quaternary ammonium salt compound.
Claims7
A positively chargeable electrophotographic toner comprising a toner particle and a silica fine particle the surface of which is treated with a substantially water-insoluble or sparingly water-soluble quaternary ammonium salt compound.
Dependencies are inferred from the claim text.