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  1. Roland printer missing dots - different pattern every time!!

    I just replaced printhead with dampers in Roland VS640, after that every test print showing different pattern of missing dots, if I leave printer for while , test print is perfect, after few lines of print there are missing dots again. I checked every known aspect, changed captop and dampers...

  3. Roland vs 640 Ink Configuration

    Hello, I'm looking for the service manual for Roland VS-640. I need to change Ink configuration from metallics to CMYK CMYK and as far I know it can be done through service mode.
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