An ink jet - printing press with at least two ink jet print heads -

摘要

An inventive of an ink jet - printing press with at least two ink jet - printing heads (11, 12, 13, 14), wherein a first print head (11) a first water-based ink (11 '') and a second print head (12) a different from the first, second water-based ink (12'') on a substrate (2), for example a sheet of paper, printed, and with a dryer (20), which the printed inks (11 '', 12'') with electromagnetic radiation (25) supplies, is distinguished by the fact that the dryer (20) at least one, of a laser different leds - radiator (21), which the first and second ink (11 '', 12'')) with the same narrow band radiation (25) in the wavelength range between 350 nm and 405 nm approximate. The inexpensive invention makes it possible to achieve a good fact that the same time, drying and prevents damage to the substrate and the inks.