led roll to roll drum printer systems, structures and methods

摘要

led roller for roller drum printer systems, structures and methods. An optimized printing system comprises a drum structure, a led curable ink drop printhead, such as one or more printheads, and one or more led light sources for curing loose ink. some embodiments may further preferably comprise one or more led dimming stations, such as for controlling, decreasing or stopping the spreading of the ink droplets. Also, some printer embodiments may comprise a mechanism for releasing any of an inert gas, for example nitrogen, or another gas that is at least partially oxygen in between the LED power source and the substrate. Developed led printing frames typically provide superior quality and / or lower cost compared to prior art systems for a wide variety of printed matter output such as but not limited to super wide format (swf) output. ), wide format (wf) output, packaging, labeling or point of sale displays or signage.