Abstract: In a method or digital printer to print a recording material with toner particles applied with a liquid developer, toner concentration of the liquid developer is determined via measurement with aid of ultrasonic pulses. At least one ultrasonic pulse is generated by discharging an ultrasound emitter charged with a charge voltage. The ultrasonic pulse permeates the liquid developer and is received by an ultrasound receiver which generates a reception signal corresponding to the received ultrasonic pulse. With a control device, the charge voltage is regulated to a value such that a representative value of the reception signal corresponds to a predetermined desired value. The toner concentration is determined from the regulated charge voltage.

Abstract: In a system or method for development of potential images of images to be printed and generated on an intermediate image carrier using a developer fluid comprising charged toner particles and developer fluid in an electrographic printing or copying device, a feed device is provided comprising as function elements at least one chamber scraper, a raster element comprising cups to receiver the developer fluid, and at least one first flow element arranged in the chamber scraper. Between the at least one flow element and the raster element an electrical voltage is supplied such that a toner particle concentration in the cups of the raster element is increased. An application device accepts the developer fluid from the feed device and supplies it to the intermediate image carrier.

Abstract: In a method or apparatus to optimize transfer of a developer fluid having toner embedded in a carrier fluid in an electrophoretic printing apparatus, charge images of print images are generated on an intermediate image carrier. The print images are inked into toner images by means of a developer station with the developer fluid. The toner images are transfer printed onto a printing substrate in a transfer printing zone by a transfer unit. The toner embedded in the carrier fluid is thus transported from the developer station to the intermediate image carrier in a first transport path segment and from the transfer unit to the printing substrate in a second transport path segment. A temperature acting on the carrier fluid in the first transport path segment is above a melting point of the carrier fluid, and a temperature acting on the carrier fluid in the second transport path segment is below the melting point of the carrier fluid.

Abstract: In a method or system for printing of a recording medium, potential images of images to be printed are generated on a potential image carrier. The potential images are developed into an image film comprising image regions and non-image regions on the potential image carrier via application of a liquid developer comprising a polymerizable carrier fluid with dye particles suspended therein. The image film is transferred onto the recording medium. The image film is fixed on the recording medium via a cross-linking reaction of the carrier fluid such that the dye particles of the image regions are embedded in a fixed polymer matrix and the carrier fluid hardens into a transparent film that permanently bonds with the recording medium. The cross-linking reaction of the carrier fluid is started, accelerated, or extended by at least one component.

Abstract: In a device or method to develop potential images of images to be printed, the potential images being generated on an intermediate image carrier using developer fluid having a charged toner and carrier fluid, developing with an applicator device the potential images, the applicator device directing the developer fluid across the intermediate image carrier. With the feed device the developer fluid is supplied to the applicator device, the feed device discharging excess developer fluid depleted of toner and that is not transferred to the applicator device. With a conditioning device the carrier fluid is taken from the applicator device and the taken up carrier fluid is discharged. With a cleaning device residual developer fluid remaining after development of the potential images is cleaned off of the applicator device and the residual developer fluid is supplied to a chamber arranged in the cleaning device.

Abstract: In a transfer unit or method for an electrophoretic printing or copying apparatus, a rotating transfer element is provided at a first electrical potential arranged adjacent to a charge image carrier and that accepts toner images from the charge image carrier and supplies the toner images to a transfer printing station. An application element is provided adjacent to the transfer element that applies a cleaning fluid onto the transfer element to wet residual toner remaining after the transfer printing. An electrical potential element that recharges the wetted residual toner is provided after the application element and adjacent to the transfer element. A cleaning element after the potential element and adjacent to the transfer element is provided which is at an electrical potential selected so that an electrical field generated between the cleaning element and the transfer element draws the wetted residual toner towards the cleaning element.

Abstract: In an electrographic printing device, an image generating system generates an electrical charge image on an image carrier element. The electronic charge image is made visible by a developer station via charged ink particles, the image being subsequently transferred onto a final image medium and fixed thereon. A speed control is provided which: continuously varies speed of the image carrier element from zero up to a limit speed; adapts charge intensity of the image carrier element to its speed; adapts an exposure intensity for exposure according to the image and in a deletion exposure of the image carrier element to its speed; and keeps a supply of toner to the image carrier element constant per area.

Abstract: In a method or system to develop a potential image with selectable customer-specific colors using a developer fluid in an electrographic printing or copying device, a customer-specific color for print job is generated as a developer fluid from primary color concentrates and a carrier fluid in a mixing container of a mixing device. The developer fluid is fed to a developer station to develop the potential images. Given a color change to a new color in a mixing device, color values of a color of a residual developer fluid that remains are measured and via comparison of these color values with color values of the new color it is determined whether the new color can be generated using the residual developer fluid. If this is the case, the residual developer fluid is used to generate the new color.

Abstract: In a method or device for transport of liquid developer to an image carrier element for electrophoretic digital printing, a developer unit is arranged adjacent to the image carrier element, the developer unit directing a liquid developer having toner particles to the image carrier element, the toner particles crossing over to the image carrier element corresponding to previously-generated potential images. A raster unit is arranged adjacent to the developer unit. The raster unit transports the liquid developer to the developer unit by use of a raster. An electrical voltage is applied between the raster unit and the developer unit in order to exert a targeted field effect on the toner particles in a direction towards the developer unit. A chamber scraper having a dosing scraper is arranged adjacent to the raster unit and having liquid developer having the toner particles which are already charged. From the chamber scraper the raster unit accepts the liquid developer via the dosing scraper.

Abstract: In a system or method for development of potential images of images to be printed and generated on an intermediate image carrier using a developer fluid comprising charged toner particles and developer fluid in an electrographic printing or copying device, a feed device is provided comprising as function elements at least one chamber scraper, a raster element comprising cups to receiver the developer fluid, and at least one first flow element arranged in the chamber scraper. Between the at least one flow element and the raster element an electrical voltage is supplied such that a toner particle concentration in the cups of the raster element is increased. An application device accepts the developer fluid from the feed device and supplies it to the intermediate image carrier.

Abstract: In a method or system for printing of a recording medium, potential images of images to be printed are generated on a potential image carrier. The potential images are developed into an image film comprising image regions and non-image regions on the potential image carrier via application of a liquid developer comprising a polymerizable carrier fluid with dye particles suspended therein. The image film is transferred onto the recording medium. The image film is fixed on the recording medium via a cross-linking reaction of the carrier fluid such that the dye particles of the image regions are embedded in a fixed polymer matrix and the carrier fluid hardens into a transparent film that permanently bonds with the recording medium. The cross-linking reaction of the carrier fluid is started, accelerated, or extended by at least one component.

Abstract: In a method or device for development of potential images previously generated on a potential image carrier, the potential images comprising images to be printed as image locations, in an electrophotographic printing or copying device, an applicator roller directs a liquid developer comprising carrier fluid and toner particles onto the potential image carrier for inking of the image locations of the potential images such that a developer gap provided between the potential image carrier and the applicator rollers is substantially filled. A proportion of the toner particles is mixed with the carrier fluid with a viscosity between 0.1 to 80 mPa*s using a dispersion promoting additive such that the liquid developer has a viscosity between 1-99 mPa*s, so that the toner particles dispersed in the liquid developer in a region of the image locations of the potential images migrate onto. the potential image carrier and no toner particles migrate in regions that are not to be developed.

Abstract: In a method or device for transport of liquid developer to an image carrier element for electrophoretic digital printing, a developer unit is arranged adjacent to the image carrier element, the developer unit directing a liquid developer comprising toner particles to the image carrier element, the toner particles crossing over to the image carrier element corresponding to previously-generated potential images. A raster unit is arranged adjacent to the developer unit. The raster unit transports the liquid developer to the developer unit by use of a raster. An electrical voltage is applied between the raster unit and the developer unit in order to exert a targeted field effect on the toner particles in a direction towards the developer unit. A chamber scraper comprising a dosing scraper is arranged adjacent to the raster unit and having liquid developer comprising said toner particles which are already charged. From the chamber scraper the raster unit accepts the liquid developer via the dosing scraper.

Abstract: A projectile head is provided for a training cartridge having a propulsion unit, with an integrated projectile tail section, which can be used equally for training cartridges as well as combat cartridges of the same caliber size, wherein the projectile tail section is connectable to the projectile head with the aid of an extension on the projectile tail section, the extension is insertable into a receptacle in the projectile head, and the extension contains a recessed area, open on the front, for receiving a warhead detonator. The projectile head has a receptacle in the projectile head for receiving the extension of the projectile tail section, and an end stop which extends into the receptacle. The end stop is for contacting a warhead detonator present on the projectile tail section during assembly of the propulsion unit and the projectile head to prevent the extension from reaching a fully assembled position in the receptacle.

Abstract: The invention relates to a method according to which print data determine the image elements of a printing format to be printed on a substrate. According to the inventive method, the surface tension of a printing liquid (30, 34) is influenced depending on the printing date that pertains to the respective image element.

Abstract: In a method and device to generate a print image on a carrier material, a surface of a print carrier is coated with a layer which is one of ink-repelling and ink-attracting. In the structuring process, ink-attracting regions and ink-repelling regions are generated. Ink that adheres to the ink-attracting regions and that is not absorbed by the ink-repelling regions is applied on the surface. The applied ink is transferred onto the carrier material. Before a new structure process on the same surface of the print carrier, the surface is cleaned and recoated with said layer. Before the application of said layer, a wetting-aiding substance is applied with a molecular layer thickness. A surfactant with hydrophilic molecule sections is used as the wetting-aiding substance.

Abstract: In an electrographic printing device, an image generating system generates an electrical charge image on an image carrier element. The electronic charge image is made visible by a developer station via charged ink particles, the image being subsequently transferred onto a final image medium and fixed thereon. A speed control is provided which: continuously varies speed of the image carrier element from zero up to a limit speed; adapts charge intensity of the image carrier element to its speed; adapts an exposure intensity for exposure according to the image and in a deletion exposure of the image carrier element to its speed; and keeps a supply of toner to the image carrier element constant per area.

Abstract: In a modularly-designed printing device for high-speed printing, a printing system is provided comprising a combination of a plurality of printing groups operated independent of one another. A printing substrate guidance group is provided that is common to the printing groups and which transports a printing substrate through the printing system. The printing groups each comprise a printing unit for printing of the printing substrate, a printing group activation unit for control of printing operation of the printing unit, and an image data unit for preparation of the image data to be printed. The printing substrate guidance group comprises a printing substrate guidance unit for transport of the printing substrate through the printing system and an activation unit for control of the operation of the printing substrate guidance unit.

Abstract: In a device and method for electrographic printing or copying, a latent image carrier is provided having a potential pattern corresponding to an image pattern. An applicator pattern is provided that carries a liquid layer of ink spaced from a surface of the latent image carrier by an air gap. A surface of the applicator element is provided with a structure with which detachment of droplets from the liquid layer is facilitated, the structure having a plurality of first areas having an increased electrical conductivity, a plurality of second areas that differ from a remaining surface based on a portion of surface energy, and a plurality of third areas formed as microscopic elevations. A force field is applied in the air gap to act on the liquid layer. By overcoming the air gap, droplets are transferred from the liquid layer on the surface of the latent image carrier by overcoming the air gap for inking a latent image to create an inked image.

Abstract: A discarded propelling cage sabot for a sub-caliber projectile is provided. The sabot includes a plurality of propelling cage sabot sections arranged side-by-side in a circumferential direction and separated by separating joints, each of the propelling cage sabot sections having a pressure flange having a groove-shaped recess, and a frustum-shaped propelling cage sabot region which is positioned rearward in the direction of flight relative to the pressure flange. The sabot also includes a plurality of sealing band segments that are arranged side-by-side in the circumferential direction and are separated by separating joints, each of the sealing band segments corresponding to one of the propelling cage sabot sections.