Patent · US Expired

Developing device

US4656964A · kind A · utility

20Cited by
1References
15Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 27, 1983
Grant dateApr 14, 1987
Priority date
Expiry dateDec 27, 2003

Classification

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

Abstract

A device for developing an electrostatic latent image formed on a photosensitive member includes a composite sleeve which is comprised of a cylindrical support, a dielectric layer formed on the support and a plurality of fine magnets serving as floating electrodes embedded in the dielectric layer and which is driven to rotate to carry magnetic toner as magnetically attracted to its outer peripheral surface.

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