Abstract: An inkjet printing system includes a print head with a plurality of ink nozzles arranged in recesses on the print head. Gas from a first gas source is conveyed through first gas ducts and fed to the recesses. An evaporator is arranged along the first gas ducts before the nozzles, saturating the gas with solvent, which prevents undesired evaporation of ink at the ink nozzles. The printing system further includes second gas ducts feeding dry gas to the region between the print head and the target as well as third gas ducts for carrying off gas from the first and second air ducts.

Abstract: The invention relates to an output unit for a provision individually per track of sheet material for placing beneath products fed on two or multiple tracks, in particular beneath food portions, said output unit comprising a draw-in device that is configured to draw in individually per track a respective one material web of the sheet material per track and that in particular has at least one driven draw-in shaft and at least one draw-in pressure unit; a separation device that is configured to separate the sheet material from the material webs; and an ejection device that is configured to discharge sheet material on two or multiple tracks and that comprises a driven ejection roller and an ejection counter-unit that forms an ejection gap for the sheet material together with the ejection roller, wherein the ejection roller is jointly associated with at least two tracks.

Abstract: The invention relates to an output unit for a provision individually per track of sheet material for placing beneath products fed on two or multiple tracks, in particular beneath food portions, said output unit comprising a draw-in device that is configured to draw in individually per track a respective one material web of the sheet material per track and that in particular has at least one driven draw-in shaft and at least one draw-in pressure unit; a separation device that is configured to separate the sheet material from the material webs; and an ejection device that is configured to discharge sheet material on two or multiple tracks and that comprises a driven ejection roller and an ejection counter-unit that forms an ejection gap for the sheet material together with the ejection roller, wherein the ejection roller is jointly associated with at least two tracks.

Abstract: An electrohydrodynamic inkjet printing system includes a print head with a plurality of ink nozzles arranged in recesses on the print head. A plurality of ejection electrodes located at the ink nozzles. A support structure is arranged in front of the ink nozzles and forming a front surface, wherein the ejection electrodes are arranged on the support structure. Gas from a first gas source and/or from a second gas source is conveyed through gas ducts and or gas is fed through the gas ducts to a gas sink. The gas ducts extend, over at least part of their length, along the support structure.

Abstract: The electrohydrodynamic print head comprises a nozzle carrier with a plurality of nozzles arranged thereon. A plurality of electrodes associated with the nozzles are located on the front side of the nozzles. A support structure supporting the electrodes is located on the nozzle carrier and comprises a plurality of support elements arranged between the nozzles. Ink retainers are arranged between the nozzles and the support elements. The front surfaces of the ink retainers are located behind the front ends of the nozzles in order to prevent the nozzles from being submerged by ink. Guard electrodes can be provided between the ejection electrodes and the ink retainers to reduce the electrical fields at the ink retainers and thereby to improve their efficiency to pin the ink. Suction ducts surrounding each nozzle allow to remove ink from the nozzles.

Abstract: Disclosed herein is a system (20) for providing N bipolar AC phase voltages UVj, with j=1 . . . N, said system (20) comprising N modular energy storage direct converter systems (MESDCS) (22) and a control system (20), wherein the first ends (24) of each MESDCS (22) are connected to a common floating connection point (28), and wherein the j-th MESDCS (22) is controllable to output at its second end (26) a star voltage Usj with respect to the floating connection point (28), with j=1, . . .

Abstract: A method of printing a print pattern onto a substrate with a print head comprises a plurality of nozzles, where the print head has a rectangular active print head area which includes all of the nozzles. The active print head area is delimited by four sides defining a primary and a secondary direction. The method comprises i) decomposing the print pattern into a plurality of print pattern segments that have dimensions along the primary and secondary direction which are smaller than the dimensions of the active print head area along the primary and secondary direction; ii) assigning each print pattern segment to exactly one nozzle; iii) causing each nozzle to print the print pattern segment assigned to said nozzle. The print head is moved during printing of each print pattern segment within an area that is smaller than said active print head area.

Abstract: A method of printing a print pattern onto a substrate with a print head comprises a plurality of nozzles, where the print head has a rectangular active print head area which includes all of the nozzles. The active print head area is delimited by four sides defining a primary and a secondary direction. The method comprises i) decomposing the print pattern into a plurality of print pattern segments that have dimensions along the primary and secondary direction which are smaller than the dimensions of the active print head area along the primary and secondary direction; ii) assigning each print pattern segment to exactly one nozzle; iii) causing each nozzle to print the print pattern segment assigned to said nozzle. The print head is moved during printing of each print pattern segment within an area that is smaller than said active print head area.

Abstract: A method of printing a print pattern onto a substrate with a print head comprises a plurality of nozzles, where the print head has a rectangular active print head area which includes all of the nozzles. The active print head area is delimited by four sides defining a primary and a secondary direction. The method comprises i) decomposing the print pattern into a plurality of print pattern segments that have dimensions along the primary and secondary direction which are smaller than the dimensions of the active print head area along the primary and secondary direction; ii) assigning each print pattern segment to exactly one nozzle; iii) causing each nozzle to print the print pattern segment assigned to said nozzle. The print head is moved during printing of each print pattern segment within an area that is smaller than said active print head area.

Abstract: A print head (1) for depositing a liquid on a substrate comprises a layer structure including a stop layer (5) made of a dielectric material, an electrically conducting device layer (6), and an insulator layer (7) made of a dielectric material. A nozzle (3) is formed in the layer structure. The nozzle has a nozzle opening (34) for ejecting the liquid. A ring trench (31) is formed around the nozzle. The nozzle opening and the ring trench are radially separated by an annular nozzle wall (32). An ejection channel (37) is formed adjacent to the ring trench along the direction of ejection. An extraction electrode (8) is arranged on the insulator layer (7) and surrounds the nozzle.

Abstract: A method of printing a print pattern onto a substrate with a print head comprises a plurality of nozzles, where the print head has a rectangular active print head area which includes all of the nozzles. The active print head area is delimited by four sides defining a primary and a secondary direction. The method comprises i) decomposing the print pattern into a plurality of print pattern segments that have dimensions along the primary and secondary direction which are smaller than the dimensions of the active print head area along the primary and secondary direction; ii) assigning each print pattern segment to exactly one nozzle; iii) causing each nozzle to print the print pattern segment assigned to said nozzle. The print head is moved during printing of each print pattern segment within an area that is smaller than said active print head area.

Abstract: A print head (1) for depositing a liquid on a substrate comprises a layer structure including a stop layer (5) made of a dielectric material, an electrically conducting device layer (6), and an insulator layer (7) made of a dielectric material. A nozzle (3) is formed in the layer structure. The nozzle has a nozzle opening (34) for ejecting the liquid. A ring trench (31) is formed around the nozzle. The nozzle opening and the ring trench are radially separated by an annular nozzle wall (32). An ejection channel (37) is formed adjacent to the ring trench along the direction of ejection. An extraction electrode (8) is arranged on the insulator layer (7) and surrounds the nozzle.

Abstract: A method for the production of nano- or microscaled ID, 2D and/or 3D depositions from an solution (6), by means of a liquid reservoir (2) for holding the ink with an outer diameter (3,D) of at least 50 nm, is proposed, wherein there is provided an electrode (7,8 or 9) in contact with said ink (6) in said capillary (2), and wherein there is a counter electrode in and/or on and/or below and/or above a substrate (15) onto which the depositions are to be produced, including the steps of: i) keeping the electrode (7, 8, 9) and the counter electrode (15, 18) on an essentially equal potential; ii) establishing a potential difference between the electrode (7, 8, 9) and the counter electrode (15, 18) leading to the growth of an ink meniscus (1) at the nozzle (3) and to the ejection of droplets (13) at this meniscus with a homogeneous size smaller than the meniscus size (11) at a homogenous ejection frequency; keeping the voltage applied while the continuously dried droplets leave behind the dispersed material which le

Abstract: A low-risk or no-risk method of realizing investment gain on a loan by borrowing at a fixed rate at simple interest and investing the loan proceeds in an insured or otherwise guaranteed financial product, such as a Certificate of Deposit, providing compound interest income in excess of the borrowed interest and expenses. A gain occurs when the combined amount of the original investment of the loan proceeds plus the accumulated interest income exceeds the remaining balance of the related mortgage loan and any expenses.