Hp indigo 5000 ending mark

Discussion in 'HP Indigo Digital Presses' started by Sergio Serge, Oct 3, 2019.

  1. Sergio Serge

    Sergio Serge Member

    Joined:
    Jan 2018
    Messages:
    13
    Location:
    nj
    hello I have problem in quality issue looks like it’s a bump stoping some color to print correctly
    Attached is a pictures showing the problem in the end of paper not gripper side
    I changed impressions paper , pipe and blanket too many times I changed the sponge rollers still have the issue , any idea ??
     

    Attached Files:

  2. Milo Wilson

    Milo Wilson Senior Member

    Joined:
    Dec 2007
    Messages:
    426
    Location:
    Arkansas
    Could be a PIP underlayment issue.
     
  3. Sergio Serge

    Sergio Serge Member

    Joined:
    Jan 2018
    Messages:
    13
    Location:
    nj
    i changed the underlayer too
     
  4. Milo Wilson

    Milo Wilson Senior Member

    Joined:
    Dec 2007
    Messages:
    426
    Location:
    Arkansas
    What about the suction cups for the tail of the PIP? Oil teardrops can form if the tail of the pip is being pressed too hard down on the suction cups.
     
  5. Sergio Serge

    Sergio Serge Member

    Joined:
    Jan 2018
    Messages:
    13
    Location:
    nj
    how to fix that ?
     
  6. Milo Wilson

    Milo Wilson Senior Member

    Joined:
    Dec 2007
    Messages:
    426
    Location:
    Arkansas
    Is the defect exactly the same shape and location after PIP, PIP underlayer and blanket replacements?
     
  7. Sergio Serge

    Sergio Serge Member

    Joined:
    Jan 2018
    Messages:
    13
    Location:
    nj
    yes the same one in the same exact place sometime is smaller sometimes is big like showing in pictures
     
  8. krukov

    krukov Member

    Joined:
    Oct 2019
    Messages:
    5
    Location:
    Poland
    Check ameteks functionality, tubes, CS flow and underlayer.
     
  9. Sergio Serge

    Sergio Serge Member

    Joined:
    Jan 2018
    Messages:
    13
    Location:
    nj
    What is ameteks functionality ?
    underlayer is new cleaning station flow is under the range
     
  10. krukov

    krukov Member

    Joined:
    Oct 2019
    Messages:
    5
    Location:
    Poland
    Ameteks functionality means if they are working or working enough. But for me it still looks like underlayer. Maybe you did something wrong?

    Edit: You can check also separated gray20, check if it's on one color or on one half of PIP. You need to look where it comes from.
     
  11. Sergio Serge

    Sergio Serge Member

    Joined:
    Jan 2018
    Messages:
    13
    Location:
    nj
    it happen when i got the impression paper jam in the blanket ...after that i changed the pipe and blanket and it still show up so i did change the underlayer and pipe still there in the same spot
    i run gray 20 separated it looks in in each impression CMYK i know the pipe run twice the image to transfer it to the blanket i keep running the gray 20 it is in the same spot the trailing edge (the end of the sheet)
    i checked the blanket same spot no air under nit checked the pipe and the underlayer if theres any buble ..nothing
     
  12. FFR428

    FFR428 Senior Member

    Joined:
    Feb 2008
    Messages:
    421
    Location:
    CT
    If this still shows up after pip, blanket and underlay replacement the cylinder itself could be damaged.
     
  13. Sergio Serge

    Sergio Serge Member

    Joined:
    Jan 2018
    Messages:
    13
    Location:
    nj
    i checked both drums blanket and pipe drum no dent no issue at all
     
  14. krukov

    krukov Member

    Joined:
    Oct 2019
    Messages:
    5
    Location:
    Poland
    When you are Printing Gray 20 please change ink order to See if that spot Will change colour. If Yes, propably you have weak spot somewhere, it happens sometimes and check if all drums are synchronized.
     

  15. Chad Thomas

    Chad Thomas New Member

    Joined:
    Wednesday
    Messages:
    1
    Location:
    usa
    Did you ever resolve this issue?
     
Loading...