Ink regulation device for a printing machine
AssigneeMAN Roland Druckmaschinen AG
InventorEduard Steinbacher
Life of this patent
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Abstract
An ink regulating device that measures color in a web-fed rotary printing machine for printing a printing material web or sheets in a plurality of colors. The ink regulating device measures and evaluates the colors black, cyan, magenta, and yellow, and after general calibration (i.e., the recording of standard values), derives set values for the inking zone setting devices, without requiring any further patterns, and without the need for a special copy when the printing pattern is changed.
Claims7
An ink regulating device in a rotary printing machine having a plurality of printing units for printing a printing material in a plurality of colors, and enabling color measurement of an entire length of a printing subject in zones, the ink regulating device comprising:
- common measuring means in each inking zone for measuring an ink continuum of cyan, yellow and magenta printing inks;
- special measuring means in each inking zone for measuring an ink continuum of black printing ink, said measuring means each comprising a light source for each inking zone;
- and
- ink regulating computer means connected to said measuring means for comparing the measured ink continuums with one of scanner measured values and preliminary stage measured values and generating desired ink distribution curves which contain inking zone values for each printing ink, said ink regulating computer means fixing desired inking zone values and delivering regulating values for controlling inking zone setting means.
Dependencies are inferred from the claim text.