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  1. RF640 Losing Channel

    Hello I got one of my RF640 who's losing Magenta, only on the left channel. I change the dumper, same problem. With Fill ink, it works 3/4 hours and then I'm loosing again and again the left magenta channel. Thank for your help !
  2. RF640 - Supply Take up problems

    Hi everyone, I got 4 Roland RF640, and I got troubles with two of them. Supply take up doesn't work in automatic mode (with tilder). I setup the printer in Roll or TU, I got the same problems. Any ideas ? Thank you for your help !
  3. Trouble on right side printing

    Hello, New trouble for me (bad karma). I already had this there was many many years, but didn't remember how to fix it. Linear encoder test is ok. Thank you for your help !
  4. Better Ink for Roland RF640

    Hello, I just want to know which ink did you use with your Roland ? For myself Bordeaux PR4 but my dealer stop to send in my Area.
  5. RF640 - Nozzle Check (Test Print) Serious trouble

    This morning you could see the test print. It was ok the last week. Really don't understand the mistake. I don't have error message, do you have any ideas ?
  6. Roland RF640 - Lost Ink during printing

    Hello guys, Sorry for my English i'm French :) I had 4 Roland RF640 with bulk ink system + Bordeaux Ink PR4. For many years i never had troubles. But there is few months i started to have troubles. On my last 2 RF640 (2019) Test Print is ok and after few meters sometimes I Lost black...
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