ROLL EMITTING DIODES FOR ROLL DRUM PRINTING SYSTEMS, STRUCTURES AND METHODS Russian patent published in 2015 - IPC B41J2/01 

FIELD: printing.

SUBSTANCE: group of inventions relates to inkjet printers and, in particular, to roll inkjet printers having a print head which uses light emitting diodes (LEDs). The improved printing system comprises a drum structure, a print carriage for applying via it the LED curable ink, for example, of one or more print heads, and one or more LED light sources to cure the applied ink. Some embodiments may preferably additionally comprise one or more LED drying stations, for example to control, deceleration or stopping the spread of ink droplets. In addition, some embodiments of the printer may comprise a mechanism for supplying inert gas such as nitrogen, or other gas, which is at least partially depleted in oxygen, between the LED power source and the substrate.

EFFECT: disclosed LED printing structures usually provide higher quality and/or lower costs as compared to systems of prior technology level for a wide range of the resulting printed products.

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