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  1. Replace damper 1638uh

    Use dummy cartridges if you have them, remove the ink cartridges then install the dummy cartridges to seal the needles and prevent ink flow

  3. Mutoh Valuejet 1624 printing loudly

    See attached Mutoh Technical Bulletin Bearing Raceways Maintenance

  4. 1324x MAINBOARD PLS HELP

    Please see attached screenshot from VJ-1324X Maintenance Manual
  5.

    Valuejet 1324x Printing issues, please help!

    Use the head adjusting cam to rotate the printhead as required

  6. VJ-1324X Installation Error

    Have a look at the video below:

  7. Mutoh Quality

    Try using the existing Windows Driver and disable Driver Signature Verification on Windows 11, see below: https://www.howtogeek.com/167723/how-to-disable-driver-signature-verification-on-64-bit-windows-8.1-so-that-you-can-install-unsigned-drivers/ You can download the latest Kona Win driver...

  8. I think i may have made the biggest mistake ever buying a new Mutoh

    I just did a quick Q4 (720 x 1440 8 Pass Bi-Directional) profile in Onyx on our XPJ-1641SR using mostly default automated settings, it came out slightly better than the canned SAI Flexi profile.

  9. Mutoh 1624X acting like its printing but no ink coming out.

    The printhead fuse on the mainboard is normally labelled F2 and is rated 750mA

  10. 1324x damper changing instructions

    Please see attached screenshots, when using genuine Mutoh valve dampers, you need to flush them with cleaning solution before inking

  11. Printhead

    The printheads may look similar but are not exactly the same
  12.

    Mutoh Valuejet 426uf - 1 color issue !

    I see! Make sure you cartridge is not expired, if is is in date, you may have a faulty valve damper for the Cyan. Were the valve dampers replaced when you changed the printhead? If so, were they genuine Mutoh parts?
  13.

    Problem ink Mutoh 426uf

    February 2021 means the ink had already expired by more than 2 months. I find it is safe to use Mutoh UV ink up to one month past expiration date but after that, all sorts of problems can start showing up.
  14.

    Mutoh Valuejet 426uf - 1 color issue !

    Are you using 220ml cartridges or the 800ml ink bags?
  15.

    Problem ink Mutoh 426uf

    Thank you very much for the heads-up. Can you please tell us the expiration date of this Magenta ink bag?

  16. 1638uh parts manual

    See attached screenshots

  17. 1324 connection problem

    The video below might help How to Connect Your Mutoh Printer to Your Computer with Network Settings - YouTube
  18.

    Need Help 1624x 1L Ink Adapter Help

    Try inserting the C & Y adapter into the B & M slot and vice versa just to see if the problem is with the adapter or with the printer itself

  19. 1614 ink cart issues

    The Ink End Sensor is the part labelled E-13 on the attached screenshots

  20. Need Help Mutoh XPJ-1641SR Washed out colors

    Which RIP software are you using?

  21. Head height adjustment on Valuejet 1604

    Also check the condition of the bearing on the Cursor Roller Arm Assembly, these 2 are the ones that press all the carriage bearings snug against the bearing raceways of the rail.
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