Patent · US Active

Toner to develop electrostatic latent images

US9005858B2 · kind B2 · utility

0Cited by
1References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 12, 2013
Grant dateApr 14, 2015
Priority date
Expiry dateMar 12, 2033

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G9/09725
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A toner to develop electrostatic latent images, which has surface characteristics that may simultaneously improve charge uniformity, charge stability, transferability, and cleaning ability. The toner to develop electrostatic latent images may include core particles comprising a binder resin, a colorant, and a releasing agent; and an external additive including silica particles and titanium dioxide particles, wherein the external additive is attached to external surfaces of the core particles, wherein an iron intensity [Fe], a silicon intensity [Si], and a titanium intensity [Ti] that are measured by X-ray fluorescence (XRF) satisfy both conditions, 0.004≦[Si]/[Fe]≦0.009 and 0.8≦[Ti]/[Fe]≦2.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.