Patent · US Expired

Toner, image forming method and apparatus unit

US6197470A · kind A · utility

10Cited by
4References
77Claims
0Family size

Assignee

Inventor

Key dates

Filing dateFeb 22, 2000
Grant dateMar 6, 2001
Priority date
Expiry dateFeb 22, 2020

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G9/09716
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A toner is disclosed which contains toner particles and a hydrophobic fine silica powder. The hydrophobic fine silica powder has the following hydrophobic properties: the transmittance of the measuring sample fluid as defined in the specification at a methanol content of from 60% by volume to 72% by volume is 95% or more, and the transmittance of the measuring sample fluid at a methanol content of 74% by volume is 90% or more. Also, disclosed are an image forming method and an apparatus unit making use of the toner.

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