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US 12,724,356 B2Granted
Toner
AssigneeCanon Kabushiki Kaisha
InventorsSatoshi Arimura, Kosuke Fukudome, Kenta Kamikura, Shohei Tsuda, Yuta Komiya, Toru Ishii
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Abstract
A toner comprising a toner particle, the toner particle comprising a binder resin and a boric acid, wherein, where the toner particle is subjected to ATR-IR analysis by using germanium as an ATR crystal in an ATR method, a peak corresponding to the boric acid is detected, the toner comprises a fatty acid metal salt on a surface of the toner particle, and a presence ratio of an boron element on the surface of the toner particle is 0.01 atomic % or less as measured by X-ray photoelectron spectroscopy.
Claims11
A toner, comprising:
- a toner particle comprising a binder resin and a boric acid;
- a surface of the toner comprising a fatty acid metal salt, wherein
- a peak corresponding to the boric acid is detected when the toner particle is subjected to ATR-IR analysis using germanium as an ATR crystal,
- a presence ratio of a boron element on the surface of the toner particle is 0.01 atomic % or less measured by X-ray photoelectron spectroscopy, and
- C/10<A×B when A (mol/μg) is a content of a metal element in the toner, B is a valence of a metal of the fatty acid metal salt, and C (mol/μg) is a content of boron in the toner.
2 more elements
Dependencies are inferred from the claim text.