Patent · US Expired

Device for developing electrostatic images

US4884109A · kind A · utility

6Cited by
3References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 6, 1988
Grant dateNov 28, 1989
Priority date
Expiry dateJul 6, 2008

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G15/0877
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A device for developing electrostatic images includes a toner supply chamber for holding a supply of dry toner and a feed member located generally at the bottom of the supply chamber. To break up agglomeration of toner in the supply chamber an agitator, for example an elongated polypropylene fiber brush, is placed on top of the feed member and is supported totally at its periphery by the feed member and associated walls of the supply chamber. As the feed member rotates, the agitator is rotated to maintain the toner in particulate form.

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