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SP300 Head Strikes

Discussion in 'Digital Printing' started by neckbone, Dec 10, 2012.

  1. neckbone

    neckbone Member

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    Nov 19, 2011
    I have a Roland SP300v..... My prints have been getting messed up from the head hitting the material. It doesn't jam or anyhting, so I usually don't see it until the job is completely finished. I can understand the edges curling up sometimes causing this problem, but how is it hitting the center of the vinyl? Today, I noticed that I had a spot in the media that was slightly raised and seen that it was going to be a problem. I reset the media, made sure it was tight, pre - unrolled the media, etc.... and still could not get the media to lay completely flat. Do you guys have any tricks or tips for this? Thanks
     
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  2. threeputt

    threeputt Very Active Member

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    Mar 10, 2006
    washington state
    Assuming the 300 is similar to the 540:

    Print with the head in the "up" position. Especially on banners, but even vinyl jobs.

    Use all the media rollers. Be sure the material is in no "bind" from the feed side of things.

    Be sure the vinyl is not skewed.

    Finally is the temperature of the room pretty cold?
     
  3. neckbone

    neckbone Member

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    Nov 19, 2011
    The 300 doesn't allow you to adjust the head height ( that I know of ) and it only has 2 rollers..... 1 for each end..... Printer in house in controlled environment too. Thanks for the response.
     
  4. DizzyMarkus

    DizzyMarkus Active Member

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    Jan 23, 2012
    Lower your "print" temp -- raise the dryer temp
    (102) (118)
    Make sure there is no "fuzz" or any strings etc hanging off the heads



    Markus
     
  5. neckbone

    neckbone Member

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    Nov 19, 2011
    ok, I'll try that. Thanks
     
  6. DizzyMarkus

    DizzyMarkus Active Member

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    Jan 23, 2012
    no worries -- I have a 300v also and when the print heat was to high, the material would get wavy under the roller pressure and I would get little lines etc --

    Markus
     
  7. neckbone

    neckbone Member

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    Nov 19, 2011

    I'm using the default settings and the print Heat is at 45C and the dryer is at 50C..... is that about right?
     
  8. DizzyMarkus

    DizzyMarkus Active Member

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    Jan 23, 2012
    These are what I use for Orajet 3551


    102ºF = 38.889ºC

    118ºF = 47.778ºC

    just what I use ;0)

    Markus
     
  9. neckbone

    neckbone Member

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    Nov 19, 2011
    Okay, I'm going to reduce mine jsut a tab and see if I get better results. I mainly use Oracal 3651 and 3165.
     
  10. truckgraphics

    truckgraphics Member

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    Feb 16, 2012
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    Howdy Neckbone. Did you solve the problem? We are having the same problem with Oracal 3268 (6 mil) in our SP 300.
     
  11. truckgraphics

    truckgraphics Member

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    Feb 16, 2012
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    Let me reply to my own reply (checking my condition to see what condition my condition is in)....Just turned off the heater, but kept the dryer on low (38C) and we finally got through a 4 foot run. It only took us 25 feet of material to get there !!!!
     
  12. neckbone

    neckbone Member

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    Nov 19, 2011
    I've done a couple of things that's helped eliminate 99% of my problem.... I reduced the heat some....... if the rolls sits on the machine, the material tends to wrinkle over time if the pinch rollers are left down, so make sure you release the rollers and allow the material to lay flat, then apply the rollers again when you get ready to print. I also noticed that most of the time when I put the roll on the machine, the end of the roll is already wrinkled some, so I run that out until its completely smoothed across were the head will be traveling ...... The final thing, which I just did and may had played a roll in a lot of this in the past, is replaced my pinch rollers. I had one of my rollers to go bad, so it may have been getting worn out the whole time, allowing slack?????? Don't know but I guess anythings possible. Hope this helps you out.
     
  13. neckbone

    neckbone Member

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    Nov 19, 2011

    I have a roll of the 3268, but have not tried running it yet. I might be asking you for any tips on that.
     
  14. I'm pretty sure the SP 300 has a white lever on the head assembly to move the head up or down. It's not marked but its on the upper left side of the head assembly.
     
  15. xxtoni

    xxtoni Member

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    Jan 14, 2012
    I know that this is a pretty old thread but just thought I'd add my two cents.

    This should be taken as advice for all printers, not just the SP300.

    Heat can certainly be a problem but one of the more common problems in my experience is not tightening and centering the media. Doing this is very simple, you "install" the roll on the printer and before you put down the pinch rollers you simply grab the media in the center and pull it down, that'll make sure that it's tight and straight. If you don't do this the media can travel left and right quite a bit during printing, this is especially apparent if you have a take up system, you will see the media going in one direction instead of coming onto the take up system in a perfect roll.

    Another thing to keep in mind is not to put the pinch rollers at the very edge of the media or have the roller stay half on media and half off, this can cause problems as well.

    Hope this helps someone out.
     
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