Patent · US Expired

Developing device

US5655197A · kind A · utility

32Cited by
11References
30Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 24, 1995
Grant dateAug 5, 1997
Priority date
Expiry dateOct 24, 2015

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, wherein the supply member has a hardness which greater than that of the toner carrier. The supply member is rotated in the same direction as the toner carrier to conduct the peeling 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. The toner carrier is made of a foam material.

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