Patent ID: 11880163
Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A toner comprising toner particles, wherein
the toner particles each include a toner mother particle and an external additive attached to a surface of the toner mother particle,
the external additive includes specific external additive particles,
the specific external additive particles have a number average primary particle diameter of at least 30 nm and no greater than 305 nm,
the specific external additive particles include antimony-doped tin oxide particles or indium tin oxide particles,
a ratio (MSb/(MSn+MSb)) of a mass (MSb) of an antimony atom to a total of the mass (MSb) of the antimony atom and a mass (MSn) of a tin atom in the antimony-doped tin oxide particles is at least 0.10 and no greater than 0.46, and
a ratio (MIn/(MSn+MIn)) of a mass (MIn) of an indium atom to a total of the mass (MIn) of the indium atom and the mass (MSn) of the tin atom in the indium tin oxide particles is at least 0.04 and no greater than 0.46.