Back to results
US 8,999,617 B2Granted
Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method
AssigneeFuji Xerox Co., Ltd.
InventorsYoshifumi Iida, Takeshi Iwanaga, Yuka Zenitani, Yasunobu Kashima, Chika Hama
Life of this patent
Estimating the term…
Abstract
An electrostatic charge image developing toner includes toner particles and silica particles that have a titanium content of from 0.001% by weight to 10% by weight in a surface layer, an average particle diameter of from 30 nm to 500 nm, and a particle size distribution index of from 1.1 to 1.5, and are surface-treated with a titanium compound in which an organic group is bonded to a titanium atom via an oxygen atom, and a hydrophobizing agent in sequence.
Claims20
An electrostatic charge image developing toner comprising:
- toner particles;
- and
- silica particles that have a titanium content of from 0.001% by weight to 10% by weight in a surface layer, an average particle diameter of from 30 nm to 500 nm, and a particle size distribution index of from 1.1 to 1.5, and are surface-treated with a titanium compound in which an organic group is bonded to a titanium atom via an oxygen atom, and a hydrophobizing agent in sequence.
Dependencies are inferred from the claim text.