Khs Gmbh

Agfa Graphics Nv

Werner Van De Wynckel

Markus Reiniger

Katrin Preckel

Bart Peter Verhoest

Sascha Koers

Albert Brals

Bart J Verlinden

Paul Wouters

Arend-Jan Johan Beltman

Robert F Janssens

Bartholomeus Verlinden

Martin Schach

Frank Putzer

Manfred Pschichholz

Winfried Schlüter

Daniel Teufert

Markus Hilpert

Michael Nick

Verhoest Bart

Engin Gencan

Erwin Kempeneers

Marc Van Kalmthout

Kathrin Preckel

Konrad Vosteen

A cleaning head includes an end face that faces an inkjet print head to be cleaned. A supply opening and a discharge opening are spaced apart on the end face. A supply channel carries cleaning fluid to the supply opening. The discharge opening receives cleaning fluid that is to be conveyed away after having been emitted through the supply opening. The cleaning head emits a cleaning fluid jet through the supply opening with the cleaning fluid jet being emitted in a direction having a component that is directed towards the discharge opening so that the cleaning fluid can be conveyed away by suction through the discharge opening.

Cleaning head as well as device and method for cleaning printing heads

A method comprising printing multicolored images on containers includes providing overall-image data, extracting partial-image data from the overall-image data, print-head-specific calibration-data for the print heads, using the partial-image data and the first print-head-specific calibration-data for calculating print-head image-data for each print head, and causing the print heads to print corresponding partial images on containers, each partial image corresponding to one of the colors in the multicolored images.

Method for printing on containers

An apparatus for treating packages by applying furnishing features to the packages includes pressure segments, each of which is configured as a fully functional assembly unit having at least one ink-jet print head. The furnishing features are polychrome printed images.

Device for treating packages, and pressure segment for use in a device of this type

A measuring device includes a receiving device that detects measurement information indicative of a position and/or orientation of a position-modifiable component of a printing station having a print head whose position and/or orientation is adjustable by a motor and that transfers measurement information via a link. A receiving holder then introduces this receiving device into a structure that holds it at a defined position relative to the position-modifiable component. Suitable structures in which the receiving device can be introduced include a container-holding device and a receiving element for a container-holding device.

Measuring device, measuring system, and method for calibrating printing stations

A measurement system includes a measurement device to detect measurement information relating to a position-modifiable component of a printing station during movement thereof. A calculation unit receives the measurement information from the measurement device. The calculation unit determines actual-position data of the position-modifiable component from the measurement data received and compares it with predetermined reference-position data to determine calibration information based on the actual-position data and the reference-position data. An interface permits then permits transfer of this calibration information.

Measuring system and method for calibrating printing stations

A printing machine includes printing stations that each print a different color. The images printed by each printing station are superimposed on each other. Each printing station has a wireless interface for passing data to a successive printing station indicating where on the bottle the printing is to occur.

Apparatus and method for printing on containers

A container-handling station includes a drying-and-curing device that dries a printed region on a container. A sensor is configured detects heat energy from this reaction during a sensing interval that is between 50 milliseconds and 1 millisecond per angular degree of the container surface.

Device and method for drying printed containers

A method of printing includes using a printing head that comprises straight parallel rows of printing nozzles to print a printed image on a surface of a conically rotationally symmetrical region of an outer wall of an object by controlling parallel rows of printing nozzles taking into account pixel density to be achieved in the printed image, setting a printing density of a printing nozzle with regard to at least one reference parameter, and setting a variable offset between a pair of the rows based on a change in relative speed between the printing head and the conically rotationally symmetrical region of the object.

Method and arrangement for printing a three-dimensional surface

An ink circulation system includes a supply subtank for supplying ink to an ink jet print head and a return subtank returning the ink not ejected by the ink jet print head. A print circulation path links the supply subtank with the ink jet print head and the return subtank for providing a print flow of ink from the supply subtank to the ink jet print head, the return subtank, and back to the supply subtank. A degas circulation path links the supply subtank with a through-flow degassing unit for providing a degas flow of ink from the supply subtank to the through-flow degassing unit and back to the supply subtank. The ink circulation system improves the degassing quality of the ink supplied to the ink jet print head of a printing apparatus is provided.

Ink degassing for circulating ink supply systems in ink jet printers

A method and apparatus for aligning the printing of dots generated by at least one array of printing elements in an printing apparatus, wherein the method includes the steps of printing a calibration test pattern, scanning the printed calibration test pattern, determining at least one calibration value based on the scanned calibration test pattern, positioning an alignment adjustment tool relative to the array of printing elements of which the alignment needs to be adjusted and, based on the calculated calibration value, automatically adjusting the alignment of the array of printing elements using the alignment adjustment tool.

Method and apparatus for automatically aligning arrays of printing elements

In a digital printer the elements involved directly in the print process, which are located on a shuttle assembly are mounted upon a metrological frame which is isolated from the base frame by vibration dampers. Because the elements of the shuttle drive systems, such as a belt drive system having a motor and pulleys, are mounted upon the base frame, the drive and reaction forces from the motor drive systems are led to the base frame while the shuttles assembly is guided by the force-free, vibration free metrological frame. This allows for higher accuracy during printing as the metrological frame serves as a vibration free reference element.

Forceless support frame for printhead shuttle in digital printers

A digital printer includes a digital printing unit for digital printing an image onto a printing substrate during relative movement between a print head and the printing substrate, and a printing table for holding the printing substrate during the digital printing. The printing table is firmly fixed to the digital printing unit during the digital printing of the image onto the printing substrate and is released from the digital printing unit prior to and after the digital printing of the image onto the printing substrate. The printing table may be moved between a printing position, in which it is firmly fixed to the digital printing unit, and a printing substrate feeding position, in which it supports feeding and removing of the printing substrate from the printing table.

Printing system with printing table releasably clamped to printing unit

An ink circulation system for use in an inkjet printing apparatus includes an inkjet printhead, an ink supply path for supplying an ink to the inkjet printhead and an ink return path for returning ink not used for printing from the inkjet printhead. The ink return path is coupled to the ink supply path for replenishing the ink supply path with the ink returned from the printhead. The coupling establishes an ink circulation circuit. The ink circulation circuit can be replenished with fresh ink from a main tank, as ink is withdrawn by the printhead for printing. In the circulation system an active through-flow ink degassing unit is provided to control the dissolved gas level of the ink in the ink circulation system.

Ink rejuvenation system for inkjet printing

A printhead positioning system is provided wherein the shuttle assembly is split up in a printing shuttle, having a high accuracy positioning capability and a utility shuttle needing only a low accuracy positioning system. Due to this split-up the mass of components which have to be positioned accurately is greatly reduced and therefore making it easier to position the lighter load accurately and allowing for use of cheaper drive systems while maintaining the high accuracy in printing.

Double shuttle configuration for digital printers

A print head mounting assembly and a method of mounting and positioning a print head on a print head carriage framework suitable for mounting in a printing system includes a print head positioning device for receiving a print head, and a print head mounting tile having a mounting surface for mounting the print head positioning device. The print head mounting tile is adjustably mounted on the print head carriage framework such that it provides a mounting surface for the print head positioning device that is level with a reference printing surface, when the print head carriage framework is mounted in the printing system. The print head positioning device is adjustably mounted on the print head mounting tile such that the print head, being received in the print head positioning device, is accurately positioned on the mounting surface of the print head mounting tile.

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Wolvertem, Belgium

Werner Van De Wynckel