Dr. Ing. Rudolf Hell Gmbh

Helmut Greve

Reinhard Gesell

Eckhard Lindemann

Rolf Angelbeck

Ulrich Henke

Claus Schmidt-Stoelting

Method and apparatus for acquiring covering data of print areas

Offset printing plates are usually supplied from the manufacturer as a plate stack with intermediate paper layers. For further processing, the plate stack is placed in a magazine cassette. A suction plate lifts a top plate off from the stack and, after removal of the intermediate paper layer by means of blowing air, conducts it for further processing. Also by means of blowing air, the respective upper plates of the remaining stack are isolated, so that they no longer firmly adhere to the stack. Undesired dislocations of the plates thus arising are mechanically corrected.

Apparatus for isolating offset printing plates and removing intermediate

A method for driving an ink jet comprising a compression chamber for the ink, the volume of which is charged by means of a piezo-electric transducer by expanding the chamber in preparation for printing, contracting the chamber to print, and expanding the chamber again in preparation for another cycle of printing.

Driving ink jet recording elements

Growing community of inventors

Neumuenster, Germany

Helmut Greve