Patent ID: 11899395
Assignee: CANON KABUSHIKI KAISHA
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 4:
5. The toner according to claim 4, wherein M3 is 1.00 to 10.00, 0.90≤M3/M2 and 0.90≤Si3/Si2,
when M3 (atomic %) is a ratio of metal element M in constituent elements of a surface of a toner (b) treated by applying ultrasound at an electrical output of 120 W to toner (a) determined from a spectrum obtained using x-ray photoelectron spectroscopic analysis of toner (b), and Si3 (mass %) is a mass ratio of the organosilicon polymer contained in toner (b) determined from a spectrum obtained by fluorescent x-ray analysis.