Patent · US Expired

Toner for developing an electrostatic image

US6033820A · kind A · utility

8Cited by
5References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 26, 1999
Grant dateMar 7, 2000
Priority date
Expiry dateMar 26, 2019

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G9/08797
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A toner for developing an electrostatic image is disclosed. The toner is composed of association of a plurality of fine polymer particles, and the total volume of pores having a diameter of not more than 0.1 .mu.m on the toner surfaces is not more than 30 percent of the total toner volume. An image forming method employing the same is also disclosed. A toner which does not result in an unstable charge amount over an extended period of use can be obtained.

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