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Waves/Bands of lighter shade, how to fix? (Mimaki CJV150)

Discussion in 'Digital Printing' started by JeffA, Dec 6, 2018.

  1. JeffA

    JeffA New Member

    Apr 2, 2018
    Printing on Avery MPI 1105 Supercast Easy Apply vinyl and am getting waves of lighter shade in the print (including pic). Using a Mimaki CJV 150-130

    Running with temp of 40/45/45, low pinch roller pressure (due to thinness of material), the Avery profile matching the material, 720x1440 resolution (did have banding so raised profile and bands are gone). Did a Feed Comp. test and have good read there. Head Cleaning is done with good test print.

    Any advice would be appreciated. Included two files, one is brightened to highlight.

    Attached Files:

  2. Solventinkjet

    Solventinkjet DIY Printer Fixing Guide

    Aug 2, 2011
    Denver, CO
    That heat setting seems a bit high from my experience. Normally on a cast vinyl I am closer to 35ish for pre and platen heat and I usually just crank the post heater all the way up.

    I normally don't ever use low pinch roller pressure. It can cause the pinch rollers to slip which throws the print feed off. I understand if you have to with this material but if you haven't tried with medium or high yet I would do that.

    A lot of the time when you change the resolution from it's default on a certain profile it will print with unpredictable results. If you want to switch resolutions it's usually best to choose a different profile that has that resolution as it's default. Your profile doesn't have to match the brand name so you can choose an Oracal or Arlon profile and it will still work fine. Do a little trial and error with the profiles and see if you can find one that works better.

    Sometimes banding like that can be due to a problem with the printer itself. The print feed motor system might be malfunctioning or you might even just have some old clogged dampers causing ink flow issues. I would try fiddling with the settings fist but if nothing seems to work, I would start by changing any maintenance parts that haven't been changed in the last year or more.
    • Like Like x 1
  3. ewded

    ewded Active Member

    Aug 28, 2017
    Probably the source ot the problem is not this but I get the best results with speed/quality when printing on 25° only.
  4. yannb

    yannb Member

    Mar 15, 2013
    Hello, how was this issue solved? We're experiencing the same kind of light-dark banding in waves on three JV150's.
  5. Alan Menhennet

    Alan Menhennet Member

    Jul 8, 2018
    Is your maps swithed on?

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