Heidelberger Druckmaschinen Ag

Franz Haaf

Nikolaus Pfeiffer

Helmut Meyer

Tom Oelsner

Klaus-Dieter Kleibaumhüter

Werner Stadler

Stephan Erhardt

Thomas Kunzl

An electrical voltage supply device for machines processing printing material includes at least one drive motor for the transport of printing material and at least one further electrical consumer. A control unit is provided which, when the supply voltage drops below a minimum acceptable supply voltage of the machine processing printing material, switches of electrical consumers which are not required for the transport of printing material and supplies the drive motor for the transport of printing material from energy stored in the moving masses of the machine processing printing material.

Printing press without paper during power failure and method of operating the printing press

A method for carrying out maintenance or service operations on machines, includes transmitting data for a maintenance or service requirement by the computer of the machine over a publicly accessible communications network to a management computer. The management computer checks the status of the machine through the computer of the machine for permissible authorizations. The corresponding service or maintenance operations are carried out on the basis of the authorization of the machine detected by the management computer. The service or maintenance requirement can also be reported by the computer of the machine over the publicly accessible communications network to the management computer, and the management computer can create a checklist for processing the required service and maintenance measures, on the basis of at least one error message received, and can transmit it to the computer of the machine. A system is also provided for carrying out the method.

Method and system for carrying out maintenance or service operations on machines

A method of metering dampening solution when printing with a printing form for offset printing, including, with a control device, setting an amount of dampening solution on the surface of the printing form to a predetermined value before starting to print, further includes, following one interruption in the printing, determining the number of interruptions which have occurred previously in a predefined time interval, and varying in accordance with the number of interruptions the amount of dampening solution supplied to the surface of the printing form during the one interruption.

Method of metering dampening solution when printing with a printing form for offset printing

Cassette for a magazine for automatically changing printing plates, the cassette being formed for receiving therein a plurality of printing plates with respective spacer elements disposed therebetween, and the printing plates being removable sequentially from the cassette, includes a device located in a marginal region of the cassette for swivellably mounting the spacer elements so that the spacer elements are swivellable out of operative range of the respective printing plates when the printing plates are being removed from the cassette.

Growing community of inventors

Sinsheim-Weiler, Germany

Franz Haaf