Heidelberger Druckmaschinen Ag

Heideiberger Druckmaschinen

Masterwork Group Co., Ltd.

Holger Leonhardt

Anton Rodi

Andreas Detmers

Markus Möhringer

Wolfgang Eberhard Luxem

Tobias M&uuml;ller

Tobias Mueller

Tobias Muller

David Ehrbar

Roland Pudimat

Klaus Mueller

Reinhard Broghammer

Stephan Balleis

Claus Peter Zander

Rafael Pisarski

Eike Heitmann

Harald Feistauer

Michael ÖStreicher

Werner Schmidt

A method for defining an evaluation region of a register sensor for detecting register marks on printing substrates in printing substrate processing machines includes connecting the register sensor to a computer. In a first step, the register sensor measures an edge of a printing substrate, starting from the edge, the evaluation region is set to a starting value, and in at least one second step, the evaluation region is set to an increased value until the register sensor detects a first edge of the register mark.

Method for automated position detection by defining an evaluation region of a register sensor

A method for setting position register and color register in a sheet-fed printing press having a control computer, which provides for one setting operation, in which both position and color register are set by the control computer. For the purposes of the setting, both the register setting elements in the printing units and the setting elements in the feeder are used. The invention is distinguished by the fact that before carrying out the setting operations, during the calculation of the travels for the register setting elements and setting elements in the feeder, an optimization comprising the travels of the register setting elements and the setting elements in the feeder is carried out in the computer.

Optimized register control process in a sheet-fed printing press

A method for determining a position of a printing image on a piece of printed material in a printing machine includes the steps of acquiring, by a first optical sensor, a mark disposed on the piece of printed material; acquiring, by a second optical sensor, an edge of the piece of printed material; and calculating, by an evaluation unit, a spaced distance of the mark from the edge; and a monitoring device for the printing machine.

Method for determining a printing-image position, and monitoring device for a printing machine

A method and a device for automatically transmitting data from a pre-press stage () to a printing substrate processing machine () having at least one print unit () and one print form () for printing on a printing substrate (). The method and the device are distinguished in that the data of the pre-press stage () to be transmitted to the printing substrate processing machine () are applied in an encoded form to the print form (), and these data are able to be read out by the printing substrate processing machine (). Also provided is a method and a device for automatically transmitting data from a first printing substrate processing machine () having at least one print unit () and one print form () for printing on a printing substrate (), to a further printing substrate processing machine, in particular a folding machine. This method and this device are distinguished in that the data to be transmitted to the further printing substrate processing machine are applied in the first printing substrate processing machine (), in a machine-readable form, to the print form (), and these data are read out by the further printing substrate processing machine.

Automatic transmission of data from the pre-press stage to a printing press

An apparatus in a multicolor rotary printing machine for determining register deviations, including a scanning device disposed behind a print gap of a last printing unit of the printing machine; at least one register mark line disposed on printing material movably disposed relative to the scanning device, wherein the scanning device is directed to the register mark line; a control circuit connected with the scanning device for processing signals from the scanning device, and a measuring, steering and regulating device receiving inputs from the control circuit in operative engagement with registers of the printing machine, and a plurality of section reference marks on the printing material, in alignment with the register mark line within scanning range of the scanning device for correcting the register deviations.

Arrangement for determining register deviations of a multicolor rotary printing machine

A method of controlling a level of printing ink in an ink fountain, including, by the use of an ink metering device, topping off printing ink along an ink fountain roller that dips into the printing ink; by a level sensor, determining signals relating to the actual level along the ink fountain roller, feeding the signals relating to the actual level to a control device; in the control device, comparing the signals fed thereto with signals relating to a desired level; forming actuating signals from the derived comparative signals, for an actuating element in the ink metering device, so that printing ink is topped off along the ink fountain roller in accordance with ink acceptance from the ink fountain; from a container with a limited supply of printing ink, dispensing the printing ink for topping off and, if necessary or desirable, renewing the supply of ink in accordance with ink demand, which further includes, for each measurement location of the level sensor, determining the change in the actual level per unit time, continuously determining the residual amount of printing ink in the container and, whenever the residual amount of printing ink falls below a specific value, removing the residual amount of printing ink from the container and feeding it into the ink fountain in a manner proportional to the change in level per unit time at the respective discharge location.

Method of controlling the level of printing ink in an ink fountain and

Register adjustment device in a sheet-fed printing press having adjusting elements for adjusting a printing operation thereof includes a position sensor, a light source for supplying light to the position sensor, and an evaluating unit connected to the position sensor for receiving data therefrom regarding registration of printing material traveling on a path through the printing press, and the evaluating unit being further connected to the adjusting elements of the printing press for adjusting a printing operation thereof in accordance with the data, the position sensor being disposed in the vicinity of the printing-material travel path so as to determine a respective register affecting the printing material, the position sensor having at least two sensor heads disposed at spaced distances from one another; and a method of register-adjustment.

Device for register adjustment on a sheet-fed printing press

Ink-jet printer includes a device for supplying ink, an ink-jet generating device connected thereto, the ink-jet generating device having at least one nozzle for selectively applying ink to a recording carrier or a print transferring material and being positionable relative to the recording carrier or the print transferring material, and a control device to which the ink-jet generating device is connected, the ink-supplying device having at least one mixing chamber for inks of different colors, the mixing chamber having ink inlet channels thereto formed with respective inlet openings, and respective metering devices for the inlet openings disposed in the ink inlet channels, the metering devices being connected to the control device and being actuatable thereby; and method of operation.

Ink-jet printing device and method

A device for configuring functional units a serial master-slave arrangement, including a master unit having a digital computer and an input/output unit, a plurality of slave units each having a digital computer and two input/output units, the master unit being connected to a first slave unit, and the slave units being connected to one another in series via the in-put/output units and data-transfer lines. The device includes an electronic switch in each slave unit for blocking the transfer of data between a receiving section of the input/output unit for receiving information or signals from the direction of the master unit and a transmitting section of the input/output unit for driving information or signals in a direction towards adjacent slave units, and an electronic summing element in each of the slave units, the respective summing element having a first input connected to the respective digital computer, and a second input connected to a receiving section of the input/output unit for receiving the signals from a respective adjacent slave unit disposed more remotely from the master unit, the respective summing element having an output connected to a transmitting section of the input/output unit connected in the direction towards the master unit.

Growing community of inventors

Bammental, Germany

Holger Leonhardt