Abstract: A method transforms color values of a first device-dependent color space into the color values of a second device-dependent color space so that the visual impression of the color represented in the two-color spaces is essentially identical. The transformation of the color values combines at least one absolute rendering intent and at least one relative rendering intent.

Abstract: A method includes the steps of: a) printing a first print job on a printing machine using a printing fluid, a substrate, a specified ICC profile, and a first machine setting; b) preparing the printing operation of a second print job involving a change of the printing fluid and/or of the substrate; and c) printing the second print job using a second combination of printing fluid and substrate. Step b) includes: b1) printing a test print having a plurality of test fields; b2) recording the test fields; b3) computationally determining and saving a quality value based on the test fields; b4) determining and saving an adjustment value for a machine setting; and b5) selectively changing a printing machine setting from the first machine setting to a second machine setting using the adjustment value or keeping the first printing machine setting, and the making a choice based on a quality value.

Abstract: A printing method includes determining a master machine setting by using a master substrate, printing a first test print including test fields, and using a first combination of printing fluid and master substrate, recording test fields of the first test print, and computationally determining and storing a first setting value for a first machine setting as the master setting. Printing a print job is prepared by changing the substrate to a second combination of printing fluid and substrate, printing a second test print including test fields, and using the second combination of printing fluid, substrate and master setting, recording the test fields of the second test print, and computationally determining and storing a second setting value for a second machine setting, the second setting value defined relative to the master setting. The print job is printed by using the second combination of printing fluid, substrate and second machine setting.

Abstract: A method includes the steps of: a) printing a first print job on a printing machine using a printing fluid, a substrate, a specified ICC profile, and a first machine setting; b) preparing the printing operation of a second print job involving a change of the printing fluid and/or of the substrate; and c) printing the second print job using a second combination of printing fluid and substrate. Step b) includes: b1) printing a test print having a plurality of test fields; b2) recording the test fields; b3) computationally determining and saving a quality value based on the test fields; b4) determining and saving an adjustment value for a machine setting; and b5) selectively changing a printing machine setting from the first machine setting to a second machine setting using the adjustment value or keeping the first printing machine setting, and the making a choice based on a quality value.

Abstract: A method performs color control in a printing operation on a printing machine by use of a computer. The computer uses an input profile to transform print image data from a first color space to a device-independent color space, subsequently uses an output profile to transform the print image data into a second color space dependent on the printing machine. The computer compares measurement conditions of the used input profile and of the output profile to be generated, and, if there are differences between the respective measurement conditions, adapts the print image data in the device-independent color space to deviating measurement conditions of the output profile. The printing machine subsequently executes the printing operation using the print image data, and wherein UV light excitation is used for the measurement conditions of the output profile.

Abstract: A method performs color control in a printing operation on a printing machine by use of a computer. The computer uses an input profile to transform print image data from a first color space to a device-independent color space, subsequently uses an output profile to transform the print image data into a second color space dependent on the printing machine. The computer compares measurement conditions of the used input profile and of the output profile to be generated, and, if there are differences between the respective measurement conditions, adapts the print image data in the device-independent color space to deviating measurement conditions of the output profile. The printing machine subsequently executes the printing operation using the print image data, and wherein UV light excitation is used for the measurement conditions of the output profile.

Abstract: A method for printing on an inkjet printing machine including color space transformation between target and process color spaces using a computer, includes calibrating the machine by printing and colorimetrically measuring a process color space test chart for printing in the target color space including printing-operation-related limitations in the applied ink amount. The generated measured values correspond to sampling points in the measured target color space. The sampling points are interpolated to define further sampling points. The color space transformation uses sampling points in the target color space and input values from the chart in the process color space corresponding to sampling points in the target color space. The physical variable of ink drop volume is directly used for ink application limitations and input values in the process color space. The calibration of the machine is adapted and the printing operation is carried out.

Abstract: A method for printing on an inkjet printing machine including color space transformation between target and process color spaces using a computer, includes calibrating the machine by printing and colorimetrically measuring a process color space test chart for printing in the target color space including printing-operation-related limitations in the applied ink amount. The generated measured values correspond to sampling points in the measured target color space. The sampling points are interpolated to define further sampling points. The color space transformation uses sampling points in the target color space and input values from the chart in the process color space corresponding to sampling points in the target color space. The physical variable of ink drop volume is directly used for ink application limitations and input values in the process color space. The calibration of the machine is adapted and the printing operation is carried out.

Abstract: The invention relates to an input unit for electrotechnical devices, the unit being configured such that it is technically particularly effective, yet still cost-effective. Further, it is the aim to also provide illumination elements at little expense. For touching by finger, such an input unit comprises a cover suitable for capacitive field transmissions, the cover having a contact region that can be used for touching more than a single location. A sensor film is disposed directly beneath the cover, wherein the film has a resistance structure on the side facing the cover, the structure being electrically contacted via three contact points.

Abstract: The invention relates to an input unit for electrotechnical devices, the unit being configured such that it is technically particularly effective, yet still cost-effective. Further, it is the aim to also provide illumination elements at little expense. For touching by finger, such an input unit comprises a cover suitable for capacitive field transmissions, the cover having a contact region that can be used for touching more than a single location. A sensor film is disposed directly beneath the cover, wherein the film has a resistance structure on the side facing the cover, the structure being electrically contacted via three contact points.