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

Claim 1:
2. The toner according to claim 1, wherein 0.30≤Wall/D≤0.90 where in an EDX mapping image of constituent elements of a cross section of the toner obtained by analyzing the cross section of the toner observed with a transmission electron microscope using energy-dispersive x-ray spectroscopy, when an image of the toner base particle and an image of the organosilicon polymer are observed and in the toner base particle image the organosilicon polymer image is observed at a location that corresponds to the surface of the toner base particle,
in the EDX mapping image, when a line segment that connects end points of an interface formed between the organosilicon polymer image and the toner base particle image to each other is designated as a base line, H (nm) is a length of a perpendicular line having a maximum length among perpendicular lines that connect the base line to a surface of the organosilicon polymer image, and protruded portion A is an organosilicon polymer image in which H is 30 to 300 nm, toner perimeter length D (nm) is a length of a perimeter of the toner base particle image, protrusion width W (nm) is a length of the base line in the protruded portion A, and Wall (nm) is a sum of the protrusion widths W in one toner particle.