Patent · US Expired

Electrographic printer with multiple transfer electrodes

US5889544A · kind A · utility

16Cited by
5References
19Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 10, 1997
Grant dateMar 30, 1999
Priority date
Expiry dateApr 10, 2017

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S101/37
  • WIPO fieldTextile and paper machines
  • WIPO sectorMechanical engineering

Abstract

Electrographic printing apparatus for forming a toner image on a recording medium, includes: a magnetic brush having a rotatable magnetic core and a stationary outer shell; a developer supply for supplying a magnetic developer powder including toner to the magnetic brush. A print head on the outer shell forms a plurality of parallel lines of developer. Toner is selectively transferred from a plurality of electrodes within each line to a receiver. A receiver electrode is arranged in spaced relation to the print head to define a recording region through which the receiver can be moved.

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