Patent · US Expired

Eletrophotographic toner and image forming method

US6187497A · kind A · utility

7Cited by
9References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 9, 2000
Grant dateFeb 13, 2001
Priority date
Expiry dateMay 9, 2020

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G9/09708
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An electrophotographic toner comprising colored particles comprised of inorganic particles is disclosed. The inorganic particles have a saturated moisture content W.sub.L at ambient conditions of 10.degree. C. and 20 percent RH of 1.0 to 2.0 percent by weight, a BET value of 70 to 120 m.sup.2 /g, and a number average primary particle diameter of 10 to 50 nm. Further, the volume average particle diameter of said electrophotographic toner is between 3.0 and 9.0 .mu.m.

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