Patent · US Expired

Method for imaging and erasing an erasable printing form

US6796237B2 · kind B2 · utility

2Cited by

11References

22Claims

0Family size

Assignee

MAN Roland Druckmaschinen AG · DE

Inventors

Alfons Schuster · Augsburg, DE
Michael Schonert · Augsburg, DE
Alfred Hirt · Munich, DE
Robert Weiss · Gersthofen, DE

Key dates

Filing date	Mar 12, 1998
Grant date	Sep 28, 2004
Priority date	—
Expiry date	Mar 12, 2018

Classification

Technology area (CPC G)Physics
CPC primaryG03G15/342
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A method for imaging a printing form in which the printing form is charged on its entire surface and is coated on its entire surface with particles, in particular toner particles, which bear the opposite charge. The layer formed by the particles is then fixed in accordance with the image by a beam, in particular a laser beam, and especially by infrared radiation, on the surface of the printing form or ablated in accordance with the image. Thereupon, the unfixed portions of the layer are removed or the non-ablated portions are fixed by full-surface heat treatment.

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