Patent · US Expired

Buried electrode drum for an electrophotographic print engine

US5276490A · kind A · utility

26Cited by
11References
15Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 30, 1992
Grant dateJan 4, 1994
Priority date—
Expiry dateSep 30, 2012

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03G2215/00704
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A buried electrode drum (48) includes a rigid core (10) over which a controlled durometer layer (12) is disposed. On the surface of the controlled durometer layer (12) is disposed a buried electrode layer (14), having electrodes (16) disposed therein along the longitudinal axis of the drum (48). The electrode layer (14) is covered by a controlled resistivity layer (18). The controlled resistivity layer (18) is operable to be contacted on the surface thereof by an electrode (24) to allow a voltage to be transferred to the underlying electrodes (16) and therefrom along the longitudinal axis of the drum (48). Various electrodes can be disposed about the peripheral edge of the drum (48) to allow any pattern to be formed on the surface of the drum (48).

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