Abstract: The disclosure relates to an ink supply system for use in a device for printing on articles, in particular containers, with ink, comprising: one or more recirculating ink supply devices, each comprising at least one print head, a pressurized feed tank coupled to an input of the print head for supplying ink to the print head, a pressurized return tank coupled to an output of the print head for removal of ink not consumed by the print head, wherein the return tank is coupled to the feed tank, and wherein the ink supply system comprises a central feed pressure unit and a central return pressure unit, and wherein at least one ink supply device is coupled to the central feed pressure unit and to the central return pressure unit such that the pressure in the feed tank of the at least one ink supply device is provided by the central feed pressure unit and the pressure in the return tank of the at least one ink supply device is provided by the central return pressure unit.

Abstract: A method and a device for printing onto containers, in particular bottles, made of glass are described. Containers that have been heated and coated by hot end coating are received from a transport section and transferred to a printing machine. The containers are cooled to a printing temperature in the region of the transport section and/or of the printing machine are provided with a printed image in the printing maching by direct printing. This allows for high-quality direct printing with sufficient resistance to mechanical stresses without cold end coating of the containers prior to the direct printing and/or without the resulting effort of improving the adhesive action of the print or of removing the cold end coating in the print region at least in part.

Abstract: Container treatment system for treating containers, such as bottles, with at least one direct printing machine for applying a print image onto containers and at least one container treatment machine arranged upstream of the direct printing machine and a system control device, where the system control device is configured to control the operation of the container treatment machine in dependence of a change of the container throughput that can be obtained with the direct printing machine.

Abstract: Container treatment system for treating containers, such as bottles, with at least one direct printing machine for applying a print image onto containers and at least one container treatment machine arranged upstream of the direct printing machine and a system control device, where the system control device is configured to control the operation of the container treatment machine in dependence of a change of the container throughput that can be obtained with the direct printing machine.

Abstract: An ink-jet printer with a print assembly includes an ink jet print head, the print assembly configured to be movable between a first position in which print head is positioned over a substrate to be printed upon and a second position in which the print head is positioned away from the substrate. The print head purges ink at the second position. A wiper assembly is positioned between the first position and the second position of the print assembly. The wiper assembly has a first orientation in which the wiper assembly does not contact the print head when the print assembly moves between the first position and the second position. The wiper assembly has a second orientation in which the wiper assembly contacts the print head when the print assembly moves between the second position and the first position. A fluid distribution device provides fluid to clean the wiper assembly.

Abstract: An ink-jet printer with a print assembly includes an ink jet print head, the print assembly configured to be movable between a first position in which print head is positioned over a substrate to be printed upon and a second position in which the print head is positioned away from the substrate. The print head purges ink at the second position. A wiper assembly is positioned between the first position and the second position of the print assembly. The wiper assembly has a first orientation in which the wiper assembly does not contact the print head when the print assembly moves between the first position and the second position. The wiper assembly has a second orientation in which the wiper assembly contacts the print head when the print assembly moves between the second position and the first position. A fluid distribution device provides fluid to clean the wiper assembly.

Abstract: An ink jet printer with a print assembly includes an ink jet print head, the print assembly configured to be movable between a first position in which print head is positioned over a substrate to be printed upon and a second position in which the print head is positioned away from the substrate. The print head purges ink at the second position. A wiper assembly is positioned between the first position and the second position of the print assembly. The wiper assembly has a first orientation in which the wiper assembly does not contact the print head when the print assembly moves between the first position and the second position. The wiper assembly has a second orientation in which the wiper assembly contacts the print head when the print assembly moves between the second position and the first position. A fluid distribution device provides fluid to clean the wiper assembly.

Abstract: Systems and techniques relating to passive meniscus stabilization during shutdown for ink jet printing systems are described. A described system includes a tank to store ink; a print head including a nozzle plate defining nozzles, the print head coupled with the tank to supply ink to the nozzles; an active pressure control system coupled with the tank and the print head, the active pressure control system maintaining a pressure level in the print head during an operational state of the printing system; and a passive pressure control system coupled with the print head to hydrostatically moderate the pressure level in the print head during a shutdown state of the printing system.

Abstract: An ink jet printer with a print assembly includes an ink jet print head, the print assembly configured to be movable between a first position in which print head is positioned over a substrate to be printed upon and a second position in which the print head is positioned away from the substrate. The print head purges ink at the second position. A wiper assembly is positioned between the first position and the second position of the print assembly. The wiper assembly has a first orientation in which the wiper assembly does not contact the print head when the print assembly moves between the first position and the second position. The wiper assembly has a second orientation in which the wiper assembly contacts the print head when the print assembly moves between the second position and the first position. A fluid distribution device provides fluid to clean the wiper assembly.

Abstract: In an apparatus for imprinting a material web including a transport arrangement for moving the material web through the apparatus along stations for applying coloring agents to the material web and fixing the coloring agent applied to the web, and a web buffer arranged in the web transport direction of the material web ahead of the first imprinting station for accommodating a section of the material web moved back out of the station area upon shutdown of the apparatus, at least one clamping structure (11a, 11b) is provided for fixing the material web (3) during the movement of the material web back out of the station area.

Abstract: A device for guiding a print carrier includes nozzles. The nozzles have tongues bounded by at least one at least approximately comb-shaped contour. A machine includes the guiding device and a method is provided for producing the guiding device.

Abstract: A sheet-processing machine, particularly a rotary printing press, includes a blast-air supply system and a pneumatic sheet-guiding device connected thereto. The sheet-guiding device has a sheet-guiding surface formed with air passage openings and serves for having the sheets dragged thereover in a sheet travel direction. The air passage openings serve for expelling sheet-carrying air flows during operation. The sheet-guiding device further includes flow ducts for aligning sheet-carrying air flows. The air passage openings in the sheet guiding surface form opening cross-sections of the flow ducts in the form of slots having a length which is many times greater than the width thereof.

Abstract: A sheet-processing machine, such as a rotary press, has normally closed grippers that circulate during operation. The grippers transport the sheets along a conveying section and guide the sheets at their leading and trailing edges. The conveying section is assigned a sheet decurler and a sheet guide device that follows the latter in the conveying direction. The conveying section further has a gripper opener assigned thereto for opening the trailing edge grippers carrying the trailing edges of the sheets in order to decurl the sheets. After the sheets have traversed the decurler and decurling has been carried out, the trailing edges are once more grasped with the trailing edge grippers for renewed positive guidance.

Abstract: A sheet-processing machine includes a conveyor for transporting processed sheets at a processing speed and for releasing the sheets for braking to a depositing speed. A braking element serves for the braking of the released sheets to the depositing speed. A drive is provided for the braking element, and a drive connection is provided for connecting the drive to the braking element. Further included are an overrunning clutch in the drive connection, and a brake for retarding the braking element.

Abstract: A printing press contains a sheet guiding device which has an edge. The comb-shaped edge is composed at least partially of a material which is substantially not electrically conductive. This material is advantageous with regard to the configuration of a discharging device disposed in the region of the edge, which discharging device serves to discharge the printing material sheets.

Abstract: A device for setting a spacing of a sheet from a guide during conveying through a printing technology machine provides a simple adjusting aid when the spacing of the sheet from the guide is being set. The adjusting aid improves optical observation conditions for a machine operator. At least one optically visible light beam is directed obliquely onto the surface of the sheet. A blown air apparatus acts on the sheet and has an adjusting apparatus for blowing action of the blown air apparatus.

Abstract: A delivery for a machine for processing flat printing materials includes sheet brakes for accepting sheets fed in a processing direction at an acceptance level and for releasing the sheets at a surrender level. The sheet brakes are adjustably disposed for varying the acceptance level and the surrender level. A machine is provided for processing flat printing materials, having the delivery.

Abstract: A device for guiding a print carrier includes nozzles. The nozzles have tongues bounded by at least one at least approximately comb-shaped contour. A machine includes the guiding device and a method is provided for producing the guiding device.

Abstract: A delivery includes sheet brakes and sheet supports constructed of modules including respectively identical carrier modules and braking modules with operationally revolving braking elements, the braking modules being selectively connectable to the carrier modules, and support modules selectively connectable to the carrier modules.

Abstract: A sheet-processing machine, such as a rotary press, has normally closed grippers that circulate during operation. The grippers transport the sheets along a conveying section and guide the sheets at their leading and trailing edges. The conveying section is assigned a sheet decurler and a sheet guide device that follows the latter in the conveying direction. The conveying section further has a gripper opener assigned thereto for opening the trailing edge grippers carrying the trailing edges of the sheets in order to decurl the sheets. After the sheets have traversed the decurler and decurling has been carried out, the trailing edges are once more grasped with the trailing edge grippers for renewed positive guidance.