Printing Noise and graines

Discussion in 'HP Indigo Digital Presses' started by Manjunath DH, Jul 16, 2020.

  1. Manjunath DH

    Manjunath DH Member

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    Any one know the problem what kind of solution for this

    We change ink, bid, blankets, pip IMG-20200710-WA0048.jpg IMG-20200710-WA0046.jpg IMG-20200710-WA0036.jpg
     
  2. indigo2015

    indigo2015 Member

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    Which machine?
    Are you using good blankets?
     
  3. Manjunath DH

    Manjunath DH Member

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    We are using hp Indigo 5600
    It's new blankets
     
  4. indigo2015

    indigo2015 Member

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    Are you using blankets for 5600? Its important you use correct blankets.
    When you do color adjustment, do you have a nice curve?
    Are you using good imaging oil?
     
  5. Manjunath DH

    Manjunath DH Member

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    Yeah, but onething my machine is 5500 we update to 5600
    We change blankets and imaging oil many times
    Its came only in cyan color not other
     
  6. mantman

    mantman Senior Member

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    A few thoughts:
    1. It could be your rip
    2. Switch order of inks
     
  7. indigo2015

    indigo2015 Member

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    Which HDI are you using? Do you have the problem in 160/175/180?
    Which temp. Blanket you print with?
    Are you printing with level 1,2,3?
    Are all ametek blower/suction from pte and blanket working well?
     
  8. Travis Young

    Travis Young Member

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    If you were printing on a conventional press you would think the plates were on the wrong units. Or someone's played with the screen angles.
     
  9. PAVANHD

    PAVANHD New Member

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    Hi indigo2015
    I am phasing problem in HDI180. Blanket temp 140-145 and printing level default 0
    All Ametek and auction blower working well
     
  10. indigo2015

    indigo2015 Member

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    Hdi 160 and 175 printing ok?
    If only hdi 180 not ok i think can be writing head problem or Vcorn.
     
  11. PAVANHD

    PAVANHD New Member

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    Vcorn board is new
    Any settings in writing head or options for repair writing head
     
  12. rolermanto

    rolermanto Senior Member

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    Hello,
    Try to set the “angle” Of other color and check if there is any change.
    Print only cyan
    Then send picture
    You wrote that only this color is affected , I imagine you printed the Image in separation Right?
    Luk
     
  13. mantman

    mantman Senior Member

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    I asked our Indigo operator and told me he had a similar problem and blamed the software. He restored a previous version of the software and it went away on its own. Even HP representative in Greece did not know and await if it happens again to check it up.
     
  14. FFR428

    FFR428 Senior Member

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    "Jean pattern" is what our old techs called it. Think a writing head issue was the cause. Either needed a update or uninstall and reinstall and update software. Wasn't anything mechanical. But that fixed it. Just be sure your screen curve and dpi settings are not all wonky. Think you want those on default settings before hand.
     

  15. zanhan4

    zanhan4 Member

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    Hi
    I can help you ,this is my whatsup +972525221463

    I was Tier 3 20 years HP, if you want call me i will try to help
     
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