Patent · US Expired

Developing device

US5557060A · kind A · utility

17Cited by
10References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 2, 1993
Grant dateSep 17, 1996
Priority date
Expiry dateJun 2, 2013

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G15/0818
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A developing device including a supply member pressingly contacted with a toner carrier having a hardness which is greater than that of the supply member and smaller than a predetermined hardness. The supply member is rotated in the same direction as the toner carrier to conduct the removing and supply of toner. A plate spring-like regulation member is pressed against the toner carrier to charge the toner to a predetermined polarity and thin the toner into one or two layers.

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