Patent · US Expired

Electrophotographic developer composition

US5565295A · kind A · utility

2Cited by
4References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 15, 1995
Grant dateOct 15, 1996
Priority date
Expiry dateMar 15, 2015

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G9/0819
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A dry developer composition suitable for use in the development of an electrostatic charge pattern is described. This developer composition comprises toner particles the average particle diameter whereof is comprised between 3 and 10 microns, and spacing particles the average diameter whereof is under 40 microns and at least twice the average particle diameter of the toner particles, and is characterized in that the part of spacing particles in the overall amount of spacing particles and toner particles is comprised between 1 and 8% by weight.

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