Abstract: The invention relates to a central unit (100) for supplying emergency lighting means (101a, 101b) on a DC bus (101), comprising an AC input (103) for receiving an AC supply signal, an AC/DC converter (104) configured to convert the AC supply signal into a DC supply signal, an electrical energy storage (105), in particular a battery, configured to be charged by the DC supply signal, wherein the electrical energy storage (105) is configured to supply electrical power in an emergency situation, and a DC/DC converter (107) configured to convert a DC output signal of the electrical energy storage (105) into a DC bus voltage and to forward the DC bus voltage to the lighting means (101a, 101b) on the DC bus (101) via an output circuit (109), wherein the output circuit (109) is arranged on a modular card (111), and wherein the modular card (111) is detachably connectable to a base body (102) of the central unit (100).

Abstract: A cover for covering the nozzle plate of a print head while in a parking position to delay a drying of ink. The cover can clean the nozzle plate while the nozzle plate is covered. A cost-effective and installation space-efficient cleaning of the nozzle plate of a print head is thus enabled.

Abstract: A cover for covering the nozzle plate of a print head while in a parking position to delay a drying of ink. The cover can clean the nozzle plate while the nozzle plate is covered. A cost-effective and installation space-efficient cleaning of the nozzle plate of a print head is thus enabled.

Abstract: In a printing system and a corresponding method, different nozzles of a print head can be activated to eject a nominal ink quantity with different ejection pulses to at least partially compensate for non-uniformities between the different nozzles due to crosstalk. The compensation can reduce system-dependent streaking of the print image.

Abstract: In a printing system and a corresponding method, different nozzles of a print head can be activated to eject a nominal ink quantity with different ejection pulses to at least partially compensate for non-uniformities between the different nozzles due to crosstalk. The compensation can reduce system-dependent streaking of the print image.

Abstract: In a method to regenerate during operation ink in nozzles of at least one inkjet print head operating according to drop on demand in an inkjet print apparatus, nozzles of the print head that generate print dots on a printing substrate are activated such that the nozzles output first ink droplets of a predetermined volume in a direction towards the printing substrate. Nozzles that are not being currently used to generate print dots on the printing substrate are activated such that they output at least one second ink droplet of a smaller volume in comparison to the first ink droplets volume. During at least the outputting of the second ink droplet, a suction flow is generated between the inkjet print head and the printing substrate of such strength that the second ink droplet is deflected so it does not arrive at the printing substrate.

Abstract: In a method to regenerate during operation ink in nozzles of at least one inkjet print head operating according to drop on demand in an inkjet print apparatus, nozzles of the print head that generate print dots on a printing substrate are activated such that the nozzles output first ink droplets of a predetermined volume in a direction towards the printing substrate. Nozzles that are not being currently used to generate print dots on the printing substrate are activated such that they output at least one second ink droplet of a smaller volume in comparison to the first ink droplets volume. During at least the outputting of the second ink droplet, a suction flow is generated between the inkjet print head and the printing substrate of such strength that the second ink droplet is deflected so it does not arrive at the printing substrate.

Abstract: The present invention provides compositions that are cell permeable antagonists of inositol polyphosphates. In addition, the invention provides methods for enhancing chloride ion secretion from a cell by contacting the cells with cell permeable antagonists of inositol polyphosphates. The invention also provides methods for enhancing chloride ion secretion in an individual by administering cell permeable antagonists of inositol polyphosphates to the individual. The invention additionally provides methods for alleviating a sign or symptom associated with cystic fibrosis in an individual by administering a cell permeable antagonist of inositol polyphosphates to the individual. The invention also provides compositions that are cell permeable agonists of inositol polyphosphates. In addition, the invention provides methods for decreasing chloride ion secretion from a cell by contacting the cell with cell permeable agonists of inositol polyphosphates.

Abstract: The present invention provides compositions that are cell permeable antagonists of inositol polyphosphates. In addition, the invention provides methods for enhancing chloride ion secretion from a cell by contacting the cells with cell permeable antagonists of inositol polyphosphates. The invention also provides methods for enhancing chloride ion secretion in an individual by administering cell permeable antagonists of inositol polyphosphates to the individual. The invention additionally provides methods for alleviating a sign or symptom associated with cystic fibrosis in an individual by administering a cell permeable antagonist of inositol polyphosphates to the individual. The invention also provides compositions that are cell permeable agonists of inositol polyphosphates. In addition, the invention provides methods for decreasing chloride ion secretion from a cell by contacting the cell with cell permeable agonists of inositol polyphosphates.