Reversed type not clean

Discussion in 'HP Indigo Digital Presses' started by White rabbit, Oct 2, 2018.

  1. White rabbit

    White rabbit Member

    Joined:
    Apr 2013
    Messages:
    72
    Location:
    USA
    Our 3050 is not printing reversed type clean. It is fine if the reverse is out of a screen, but if its a solid, the type is dirty. It gets worse the longer i run. It seems to follow the color of the solid, so im not thinking ink, blanket or pip. It kind of coincided with the calibration of the cleaning station flow rate, which was way too low. The pip has been changed since that was done.
    I have done auto bias, first transfer, checked PTE, the foam roller is in good shape, the blanket isnt new, but isnt shot either. I have swapped bids and nothing changed.
    Any thoughts ?
    Thanks
     
  2. HowieW

    HowieW Member

    Joined:
    May 2017
    Messages:
    5
    Location:
    UK
    Have you cleaned the writing head glass/mirror?
    Dirty Scorotrons?
     
  3. White rabbit

    White rabbit Member

    Joined:
    Apr 2013
    Messages:
    72
    Location:
    USA
    Thanks Howie. Yup, i cleaned the glass and replaced the grids and all is well. I didn't really see much wrong with the old grids, so how does one know when to change them ? Aside from the obvious...
     
  4. indigo2015

    indigo2015 Member

    Joined:
    Aug 2015
    Messages:
    60
    Location:
    rome (Italy)
    I dont know what do you mean, reversed type clean. Dont understand your problem.
    Could you explain better or load some photos.
    Thanks
     

  5. Raju

    Raju Member

    Joined:
    Nov 2017
    Messages:
    36
    Location:
    New Delhi, INDIA
    Please do bid engage ....Hope it gets ok