Patent · US Expired

Developing device

US4368971A · kind A · utility

24Cited by
6References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 2, 1981
Grant dateJan 18, 1983
Priority date
Expiry dateOct 2, 2001

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G2215/0636
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

In a dry type developing device having a magnetic field producing means, nonmagnetic developer supporting means, means for moving said magnetic field producing means and said nonmagnetic developer supporting means relative to each other, and means for supplying developer to that side of the nonmagnetic developer supporting means which is opposite to the magnetic field producing means, the surface of the nonmagnetic developer supporting means which is adjacent to the developer supply means is provided with plating containing grains therein.

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