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SP300. Perfect testprint+bidirectional setup but still unwanted magneta outlines?

Discussion in 'Roland' started by zm71, Oct 18, 2010.

  1. zm71

    zm71 Member

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    Oct 18, 2010
    Hi.

    Ive setup my sp300 and ive got perfect testprints and ive also setup the bidirectional correction so it looks good (i think).

    But! Im still getting magneta and cyan outlines/shadows, especially around black(dark) colors.

    Using colorip 2.2. Generic PVC2 mode/hi quality. Oracol 316g printmedia.

    My CMY colors are Eco-sol max and my K is another brand (Also eco-solvent ofcourse ).

    Any suggestions? Thank you.


    (i forgot, the magneta&black head is brand new. installed 2h ago.)
     
  2. J Hill Designs

    J Hill Designs Major Contributor

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    Sep 24, 2004
    picture please...is it overspray or something else?
     
  3. zm71

    zm71 Member

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    Oct 18, 2010
    my camera sucks but if u got some imagination u should see some magneta outlines :) (right hand side of the "black borders")

    http://yfrog.com/n818102010001j
     
  4. niksagkram

    niksagkram Active Member

    Check your encoder strip. I had this happen with my SC540 and changing the encoder strip cured it. Not saying this is the answer for sure, but it's a start.

    Mark
     
  5. zm71

    zm71 Member

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    Oct 18, 2010
    encoder strip?
     
  6. J Hill Designs

    J Hill Designs Major Contributor

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    little clear strip on top of the carriage that the head moves across - search here for clean encoder strip - theres plenty of threads about it - DO NOT USE SOLVENT CLEANING FLUID
     
  7. zm71

    zm71 Member

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    Oct 18, 2010
    ok, thanks a lot.

    btw, the "feed correction" didnt look 100%, im on it! thanks again.
     
  8. zm71

    zm71 Member

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    Oct 18, 2010
  9. You say that both heads are new? Your first post mentioned that the Magenta and Black heads are new...

    Sounds like the horizontal head adjustment to me. Either it slipped, was never done, or done poorly. (Horiz head adjust this is an electronic timing adjustment to compensate for the horizontal distance between the print heads).

    Can you please post a clear, closeup picture of a nozzle test (test print)? It's not as good as a horiz alignment test print, but sometimes you can usually tell by the test print if the horiz alignment is way off.

    ~E
     
  10. zm71

    zm71 Member

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    Oct 18, 2010
    sorry. Only the Black(+blue) is new. The Testprint is looking good.

    How do i setup the horizontal head adjustment? Couldnt find it in the service manual.

    thanks!
     
  11. zm71

    zm71 Member

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    Oct 18, 2010
    i feel like an idiot right now.. :banghead:


    as u can see its a bit off in the middle.

    what else can i do beside going thru the bidirectional correction all over again?

    thanks.
     

    Attached Files:

  12. J Hill Designs

    J Hill Designs Major Contributor

    15,549
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    Sep 24, 2004
  13. zm71

    zm71 Member

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    Oct 18, 2010
    no one?
     
  14. threads1

    threads1 Member

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    Ocean City, Maryland
    go to the roland forums here and search for a link to the roland service manual. There is a section in it explaining how to do what you need along with other calibrations.
     
  15. zm71

    zm71 Member

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    Oct 18, 2010

    thanks! ill try that!
     
  16. zm71

    zm71 Member

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    Oct 18, 2010
    Ok, im at 4-4 in the manual. Dont understand "Setup the PET film"

    and it says "setup sheet" when im trying this:

    Do i really need to remove the carriage cover and the Damperplate when only test-printing?
     
  17. Robert M

    Robert M Very Active Member

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    Jan 23, 2007
    colorado
    Pet film

    The printer is asking you to use PET film. This is film that will give you the highest resolution print so you can look at the ink dots with a loup or magnifing glass. Use some glossy vinyl if that is all you have.
     
  18. @zm

    You can run your test prints without removing the covers.

    Clearly from your test print you have a huge horizontal head adjustment to do. This is an electronic adjustment... not physical.

    Before digging into the machine, you should ask "Why is this adjustment suddenly so off?" Head strike? Were the screws holding down the head never properly tightened?

    There is a order to a head adjustment-- you need to do a Bias, then Vertical, Horizontal and finally Bi-Directional default.

    Doing a head adjust is not rocket science but it will help to have had a little training and guidance. Be careful to not strip the soft screws holding down the heads. Also be careful with screwdrivers and screws while the machine is powered. It will be a pain, but turn off the main power while making adjustments between test prints. You can wingwalk after you've done it a few times.

    Follow your manual. Don't skip steps. Be careful and consider asking an experienced person for onsite assistance.

    Good luck.

    ~E
     
  19. zm71

    zm71 Member

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    Oct 18, 2010
    thanks every1 for helping me out. i found the service manual and did the horiz and vert head aligment. never done anything like it before, got my printer 2w ago or something like that, but it was kinda easy when u got the hang of it and now it is printing goooooooood. no outlines, no overspray no nothing :)



    :thankyou:
     
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