Heidelberger Druckmaschinen Ag

Uwe Angst

Anton Rodi

Peter Hachmann

Andreas Fricke

Udo Ganter

Kenneth D Fraser

Herbert Ackermann

Claudius Haas

Edmund Klein

Andreas Böttger

Gerhard Bartscher

Andreas Schorpp

Joachim Zarges

Christoph Ruppaner

Markus Leva

Ulrich Fellenberg

Jürgen Zeltner

Steve Cormier

Carsten Schoenfeld

Andreas Boettger

Marco Krämer

Sebastian Wilhelm

A sheet-fed printing machine contains a printing unit, a drier, and a sheet handling device for transporting or guiding print sheets. The sheet handling device has an opening disposed downstream of the drier in the direction of transport. A humidification device for rehumidifying the print sheets is disposed in such a way that it rehumidifies the print sheets through the opening. The sheet handling device may contain a guide plate or several guide plates.

Sheet-fed printing machine with a humidification device

A machine for processing printed sheets includes a sheet delivery having a first conveying device for leading sheet ends, a second conveying device for trailing sheet ends, and a setting device for adjusting one of the two conveying devices relative to the other in a manner dependent on sheet format. The setting device includes a variable ratio gear unit for superimposing two movements.

Machine for processing printed sheets

A device and a method for developing an electrostatic latent image, which is located on a movable image carrier (1), using a non-conductive single-component toner. The device includes a toner feed device (3), in order to transport toner particles (5) from a toner reservoir (4) and charge them electrically, a rotationally mounted developing roller (2) to receive the charged toner particles from the toner feed device and to transport the toner particles which it holds into a gap between the developing roller and the image carrier, and a rotationally mounted doctor roller (6), which is arranged in the path of the toner particles from the toner feed device to the developing roller, to produce a uniform toner layer with a defined thickness on the developing roller. The surface of the developing roller (2) and the surface of the doctor roller (6) are separated from one another by a gap which is wider than the average diameter of the toner particles (5). In this manner, electrographic printing with high quality and at high speed is made possible.

Single-component developing station

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Jockgrim, Germany

Uwe Angst