Patent · US Expired

Imaging system utilizing uncharged marking particles

US4124287A · kind A · utility

10Cited by
5References
16Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 31, 1977
Grant dateNov 7, 1978
Priority date
Expiry dateMar 31, 1997

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S118/05
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An apparatus for imagewise marking a photoconductive imaging surface includes a means for forming an imagewise non-uniform charge pattern on the surface and a means for contacting the surface with uncharged marking particles.

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