Patent · US Expired

Monocomponent developer containing positively chargeable fine power

US6294303A · kind A · utility

8Cited by
10References
18Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 24, 2000
Grant dateSep 25, 2001
Priority date
Expiry dateJan 24, 2020

Classification

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

Abstract

A monocomponent electrostatographic developer is disclosed. The developer contains a negatively charging toner wherein the toner particle surface contains a positively chargeable inorganic fine powder having a mean volume average diameter of 0.5 to 7.0 .mu.m, a cleaning ratio of 0.1 to 5.0, and a flowability improving agent having a BET specific surface area of at least 30 m.sup.2 /g. A method of electrostatic imaging using the developer is also disclosed.

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