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SP-540i bent nozzles?

Discussion in 'Roland' started by trevvy, Jul 16, 2012.

  1. trevvy

    trevvy New Member

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    Apr 21, 2011
    I noticed that my blacks weren't printing solidly so I ran a print test to see what was wrong.

    I've ran several (4-5) medium cleans and about 3 powerful cleans but the resulting print tests are erractic. Wipers have been replaced but I'm waiting for cap tops that are being shipped to be replaced, I've soaked the heads in the cleaning solution overnight, flushed the ink lines (clean), used the cleaning cartridge several times. Cleaned around the cap top and around the print head.

    Is this a sign that my Black/Cyan print head nozzles are bent and that it needs replacing?

    Thanks!
     

    Attached Files:

    Tags:
  2. Colin

    Colin Major Contributor

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    I'm no expert, but have you done all of the various feed/calibration settings?
     
  3. trevvy

    trevvy New Member

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    Apr 21, 2011
    Yes, feed and calibration settings have been done.
     
  4. Colin

    Colin Major Contributor

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    Have you had any head-strikes lately?

    Was the machine left off for a week or more?

    Have you tried printing a flood of 100% K, say a 24" x 50" rectangle?
     
  5. Salmoneye

    Salmoneye Very Active Member

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    I have never replaced one but I would think damper or clogged head. Try putting vacuum on it from the bottom of the line that comes down from that cap top. suck a good syringe full of black through it and do a test print. If it's good and then goes to crap again shortly I guess we could assume you have a supply problem, gets better and stays better, clogged. Stays the same, listen to someone who knows more than I do. lol
     
  6. trevvy

    trevvy New Member

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    Apr 21, 2011
    Didn't have any headstrikes

    Machine was left off for a period of about 1 week (but automatic cleaning function was in place)

    When I try to print 100% K, it ends up with banding as shown below.

    I've noticed that when I do the tests that the middle and top sections of the black section are missing so I'm guessing that those particular nozzles are severely clogged/blocked or bent.
     

    Attached Files:

  7. trevvy

    trevvy New Member

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    Apr 21, 2011
    I'll try cleaning the lines now.
     
  8. Wiggum PI

    Wiggum PI Member

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    I think you're head's gone dude, but here's hoping I'm wrong.
     
  9. trevvy

    trevvy New Member

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    Apr 21, 2011
    I'm hoping that too hahhaha
     
  10. Salmoneye

    Salmoneye Very Active Member

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    Mine have gotten like that many times and always come back 100%, you're not dead yet.
     
  11. Salmoneye

    Salmoneye Very Active Member

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    It's like Easter for print heads around here every other week!
     
  12. wedosigns

    wedosigns Member

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    I don't think your head is gone. From the images of your test prints your missing nozzles are moving all over the place. This would indicate one of two things to me.
    1 Your cap top is not sealing correctly, therefore not creating enough suction. You stated you have one on order. In the mean time you can try cleaning the one that is on it now. Pay special attention to the rubber seal. Make sure there is no debris or ink dried on that seal which would let air in.
    2 You may a bad damper, or o-ring that is letting air in. Try pulling off the damper to see if the ink evacuates the damper. If it does that would tell you that air is coming in. Replace the damper or check the o-ring connections all the way back to the cartridge.
    Good Luck
    Bruce
     
  13. trevvy

    trevvy New Member

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    Apr 21, 2011
    Ok will do as suggested!

    Thanks
     
  14. Wiggum PI

    Wiggum PI Member

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    Yeah, a couple of beers has me thinking cap tops, now that I remember a recent issue with a customer. Had to throw the grim reaper out there though :p
     
  15. CS-SignSupply

    CS-SignSupply Very Active Member

    Even with replacing the captop, I do not think it will resolve the bent / permanently deflected nozzles... head replacement
     
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