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What would cause a printer to make this error?

Discussion in 'Digital Printing' started by Banners Signs Etc., Dec 3, 2018.

  1. Banners Signs Etc.

    Banners Signs Etc. Active Member

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    Sep 21, 2011
    Kentucky
    About an inch and a half into the material there is a lighter colored line. I changed materials restarted etc. still persists. Any ideas?

    Roland Versa-Art RS-640
     

    Attached Files:

    Tags:
  2. KMC

    KMC Graphic Artist

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    looks like you may have an issue with your encoder strip try giving it a careful wipe down as per your manual, if it still happens you may need to replace it
     
  3. Banners Signs Etc.

    Banners Signs Etc. Active Member

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    Thanks. I needed a push to take the damn thing apart lol.
     
  4. Gino

    Gino Premium Subscriber

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    Looks like its directly inline with that roller. Make sure nothings stuck in there or behind it.
     
  5. Solventinkjet

    Solventinkjet DIY Printer Fixing Guide

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    Aug 2, 2011
    Denver, CO
    Have you changed any parts recently? While this does look similar to an encoder issue, usually encoder issues have a diagonal or stair step pattern rather than perfectly straight lines. I would definitely clean it to rule it out but if that doesn't fix the issue, I would be interested in if it happens on all files.
     
  6. Banners Signs Etc.

    Banners Signs Etc. Active Member

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    Kentucky
    Is does look like a problem with that roller...nothing seems out of place though.

    I replaced the encoder strip 6 months ago

    As I was about to take it apart a rush job came in that doesn't have to use the full width, so its been back burnered. Will update.
     
  7. Solventinkjet

    Solventinkjet DIY Printer Fixing Guide

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    I'm not sure if that model has an environmental match option in the menu but most Rolands do. Try running that and see what happens. It should tell you if something with the encoder is messed up.
     
  8. Joe House

    Joe House Active Member

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    EDIT: That printer doesn't have a cutter, so no environmental match is needed.
     
    Last edited: Dec 3, 2018
    • Informative Informative x 1
  9. Banners Signs Etc.

    Banners Signs Etc. Active Member

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    Kentucky
    Looks line the line is only associated with the black channel. Using assigned colors it would only show up on black mixes.
    Pure red blue yellow and green didn't have the problem...
     
  10. Banners Signs Etc.

    Banners Signs Etc. Active Member

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    Sep 21, 2011
    Kentucky
    color test only where there is K is what is looks like

    Edit: I gotta run out for install will check in tomorrow.
     

    Attached Files:

  11. Joe House

    Joe House Active Member

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    I'd be looking at the trailing cable. It looks like you may have a short at that point in the travel of the head that is only affecting the K channel.
     
    • Like Like x 2
  12. Cory Marcin

    Cory Marcin Member

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    Oct 2, 2018
    Wisconsin
    Pinch roller for sure.
     
  13. Banners Signs Etc.

    Banners Signs Etc. Active Member

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    Sep 21, 2011
    Kentucky
    By trailing cable you mean one of the two connected to the K printhead? Likely where it flexes at the error point?
     
  14. Joe House

    Joe House Active Member

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    Dave, By trailing cable, I mean the cables that go from the main board to the carriage board.

    Cory, if it's a pinch roller problem, why does it only affect black?
     
  15. Banners Signs Etc.

    Banners Signs Etc. Active Member

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    Sep 21, 2011
    Kentucky
    Update: "Fixed"
    Cleaned encoder strip
    I looked at the cables and outside of taking it all apart and probably breaking them, I still don't know what I'm looking for. Cut wire? Mouse chew?
    Then a stroke of genius hit me. I moved the material over a half inch. =Rigged=
    :)
     
  16. Solventinkjet

    Solventinkjet DIY Printer Fixing Guide

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    Denver, CO
    If it works it's fixed! Good job! Just be ready for problems later. If it is a trailing cables issue, which I am leaning towards, it will get worse as time goes by. If that's the case you will know where to start if it does become a problem.
     
  17. Banners Signs Etc.

    Banners Signs Etc. Active Member

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    Sep 21, 2011
    Kentucky
    I'll definitely come back to this thread and get your contact info. Do you sell them? are they hard to install?
     
  18. Solventinkjet

    Solventinkjet DIY Printer Fixing Guide

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    Aug 2, 2011
    Denver, CO
    I don't have those cables so you should contact a local Roland dealer. In my experience, changing trailing cables out is more tedious than hard. The main concern is not cutting the cable on the edges of the sheet metal covers.
     
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