Man Roland Druckmaschinen Ag

Manroland Ag

Manroland Web Systems Gmbh

Alfons Schuster

Thomas Hartmann

Armin Weichmann

Dirk Probian

Michael M&uuml;ller

Bernhard Feller

Michael Schönert

Josef Schneider

Horst Dauer

Alfred Hirt

Hartmut Fuhrmann

Rainer Stamme

Robert Weiss

Michael Sch&ouml;nert

An apparatus for measuring zonal inking on a printed product having a plurality of inking zones includes a plurality of optical sensors, each of the optical sensors picking up signals from at least one zonal measurement region assigned to a respective one of the plurality of inking zones of the printed product. The apparatus also includes at least one optical switch connected for receiving the picked up signals from the plurality of optical sensors and at least one measurement device connected to the at least one optical switch for receiving the picked up signals and evaluating the picked up signals.

Apparatus and method for measuring zonal inking

The amount of cleaning media needed for cleaning the printing forme is determined with regard to the level of coverage with ink and/or image carrier material of a printing surface and/or from image data about the printing surface. An erasing and hydrophilizing apparatus includes a cleaning apparatus and nozzles for applying a cleaning medium, the cleaning apparatus and/or the nozzles being connected to a computing and/or storage device.

Method and apparatus for cleaning and erasing printing surfaces, in particular printing surfaces of forme and blanket cylinders in a printing machine

In order to simplify the sequence of creating a mask, in particular for producing a printing plate, and at the same time to improve the quality of the printing plate produced by means of a mask, the use of laser-induced thermal transfer is provided. The structure information is applied directly to the surface of a printing plate carrier during the creation of a mask, by means of a thermal transfer film and a laser image-setting unit, so that by means of the structure information applied, differentiation with regard to image points and non-image points can be carried out directly in order to produce a printing plate.

Creating a mask for producing a printing plate

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.

Method for imaging and erasing an erasable printing form

The image subject to be transferred is applied in preformatted form to at least two printing formes in the form of segment-like image data in a row and column arrangement, in such a way that a first portion of information from each segment of the image subject (information (a) with appropriate index features) is provided on a first printing forme, and a second portion of information from the corresponding segment of the image subject (information (b) with appropriate index features) is provided on a second printing forme. As a result of synchronous rolling of the printing-forme cylinders, the portions of information are assembled to form complete information (<a,b> with the respectively combined index features) for each segment of the image subject on the printed page. For each printing-forme cylinder revolution, the index features for each segment of the image subject (information <a,b>) are recombined step by step in the manner of a permutation, so that each printed segment constitutes a unique print.

Method of printing unique prints or individually assembled printed products on rotary printing machines

In an erasing and cleaning device for cylindrical surfaces, in particular of printing-form and rubber-blanket cylinders of a printing machine, with the aid of a cleaning cloth capable of being moved by cleaning-cloth transport means, the cleaning-cloth transport means comprising a fresh-cloth roll, a pressure element, which presses the cleaning cloth against the cylindrical surface, and a dirty-cloth roll for receiving the spent cleaning cloth and cooperating with a positioning unit for the operating position and a drive, to make it easier to change the cleaning cloth and to achieve a reduction in the time taken by this change and, moreover, to make this erasing and cleaning device capable of being used universally, there is provision for the cleaning-cloth transport means together with the cleaning cloth, to be packaged in an independent cassette and to be exchangeable in this form and for the positioning unit, in the form of a running mechanism with a drive for the cassette, to be arranged permanently as a module in the printing machine.

Erasing and cleaning device for cylinders, in particular printing-form and rubber-blanket cylinders of a printing machine

A method of producing a thermal transfer print, including the steps of controlled imagewise heating of a surface layer of the print by means of a laser beam from a laser writing head; applying selected area elements to a substrate using a tape-like transfer film with a width which is small in relation to a width of the substrate, transporting the transfer film continuously between the substrate and the laser beam, close to the substrate surface during imaging moving the transfer film over the substrate width simultaneously and in synchronism with movement of the laser writing head the width of the transfer film being sufficiently large for a number of imaging tracks to be used alongside one another, and selecting an as yet unused track for each imaging operation.

Method and apparatus for producing a thermal transfer print by means of a tape-like transfer film

To optimize the provision of thermal transfer material and to correctly provide different thermal transfer materials for the respective purpose at the correct time, a plurality of thermal transfer ribbons are made available, each in its own cassette. A control device provides management and controlling mechanism for managing the plurality of cassettes that are stored in a storage device.

Process and device for providing thermal transfer material for thermal transfer image generation

A method of producing a print, especially a multicolor print, especially for proof purposes, by controlled heating, in accordance with an image, of a surface layer one or more laser beams from a laser imaging unit and by applying the selected surface elements to a substrate. For the purpose of imaging the substrate, applied to a substrate cylinder, use is made of a tape-like transfer tape with a width which is small in relation to the substrate width, so that the gas produced during the laser imaging operation can escape to a sufficient extent because of the substrate and transfer tape being placed opposite each other over a small area. During the imaging operation this transfer tape is guided continuously through between the substrate and the laser beam or beams, close to the substrate surface, and is moved over the substrate width simultaneously and in synchronism with the movement of the laser imaging unit.

Method and apparatus for producing a print, especially a proof, by means of laser-induced thermal transfer

A method of producing a thermal transfer print on a substrate cylinder using a tape-like transfer film, the method including exerting a contact force on a substrate using the transfer film for producing a static friction force, and controlling exact synchronism between the tape-like transfer film and the substrate cylinder by using the magnitude of the static friction force.

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Augsburg, Germany

Alfons Schuster