Patent · US Expired

Electrostatic printing method and apparatus employing a whisker write head

US5812170A · kind A · utility

8Cited by

7References

16Claims

0Family size

Assignee

Heidelberger Druckmaschinen AG · DE

Inventors

Manfred R. Kuehnle · New London, US
Hermann Statz · Campbell, US

Key dates

Filing date	Jan 29, 1996
Grant date	Sep 22, 1998
Priority date	—
Expiry date	Jan 29, 2016

Classification

Technology area (CPC G)Physics
CPC primaryG03G15/325
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An electronic printing device is disclosed which uses flexible whiskers to transfer a charge corresponding to an image to a dielectric recording surface. The recording surface preferably has areas of differing conductivity so that microfields form on the dielectric surface. Ink, preferably non-charged, may then be attracted to the recording surface through dipole forces and later transferred to paper.

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