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: 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: A time domain reflectometry measurement apparatus and method is provided. Measurement data of a time domain reflectometry measurement are analyzed with respect to previously acquired empirical measurement data of error-free or faulty devices with known failures. In this way, failures can be identified in the device under test without the need of opening the device.

Abstract: A time domain reflectometry measurement apparatus and method is provided. Measurement data of a time domain reflectometry measurement are analyzed with respect to previously acquired empirical measurement data of error-free or faulty devices with known failures. In this way, failures can be identified in the device under test without the need of opening the device.