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Getting Gradation in Print Results. (Mimaki UJF-6042 MKii)

Discussion in 'Mimaki' started by AdamUJF6042, Apr 23, 2019.

  1. AdamUJF6042

    AdamUJF6042 New Member

    1
    0
    1
    Apr 19, 2019
    USA
    What’s up Printing World.

    Has anyone come across this issue?

    I’m using a Mimaki UJF-6042 MK ii.

    I recently upgraded to LUS-120 ink as it makes more sense for the substrates we sell.

    So we transition from a hard ink to flexible.

    Everything went well with the changeover but recently started to get this “gradient” effect in my printing results. More so with “Reds”, yellows, orange. So I would print on a phone case and about 3 quarters of the case is red as I wanted but the top portion of the phone case transitions to a black..

    I’ve been doing everything under the maintenance umbrella. Manual cleans.. you name it.

    If anyone has some insight to this phenomenon please help a brother out.

    I’ve attached a photo of this.

    Cheers
     

    Attached Files:

    Tags:
  2. L.D

    L.D Member

    115
    13
    18
    Jan 19, 2018
    Atlanta
    Did you wash the machine and replace all the ink filters? If not it will take some time for all the old ink to leave the system. Sounds like ink mixing. Also, make sure you are now using LUS120 profiles.
     
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