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  1. UJF 7151 plus thread.

    The printer has a recirculator, I just bypassed it with a second pump to flush it out. No good diagrams of the ink system, so might record a video on the system in case other people are messing with this model.
  2. UJF 7151 plus thread.

    Today was head flushing day, use the diaphragm pump on a Chinese print head cleaner and spliced in with Luer fittings to force circulate the ink a bit while draining off and replacing with flushing fluids. Don't forget to cap the subtank vent fitting on top to prevent it from dumping ink into...
  3. UJF 7151 plus thread.

    Just had much better luck with brush-on adhesion promoters as well. I think I am up to 6 bottles of PR-200 just sitting. Occasionally manually apply it, but so many other options that seem to just work better. Not a bad idea on paper, but it seems to have a bad habit of priming the heads to...
  4. UJF 7151 plus thread.

    Primer is the ABSOLUTE WORST on pretty much any Mimaki UV printer. It destroys seals, caps, printheads, lines, etc. If I am rebuilding a machine, I dread cleaning that crap out. Looking at having to replace one of the CF1B heads in this one because of primer. They swapped it to clear before...
  5. (OKC) Mimaki/Inkjet Field Service Tech Looking For Possible Work

    A quick addition, since people are asking. 1) Not Interested in moving. 2) I am NOT going to sell people new printers. I am not a sales rep (nor do I wish to be) and I will happily point out the good, bad or ugly of a printer regardless of brand if people ask.
  6. UJF 7151 plus thread.

    When even your service manual shows ink all over the place, you know they intentionally let a terrible product be released.
  7. Discussion Place a Roland DX7 prinhead on Mimaki: worth trying?

    The heads will have a part number on the small header circuit board. If that matches, should be fine.
  8. mimaki cjv150 print head and pump problem

    My printer was shipped in the summer to Oklahoma city where it sat for weeks in hot warehouse while full of ink.
  9. mimaki cjv150 print head and pump problem

    Got a UCJV300-107 for $3500 and a Summa S120T for another $2100. Paid both off in under 2 months printing stickers for weed companies. Took over a month for the printer to get in from Hawaii thanks to the freight company being mid bankruptcy. Thankfully it was UV ink and no light got in, so...
  10. mimaki cjv150 print head and pump problem

    I think the longest I have had a printer sit in its crate is about 2-3 hours after hitting the shop floor. Then again, I buy used because I am a cheap nerd who likes tuning printers up. That said, a bad setup can lead to an awful printing experience, so worth the wait. Also having a warranty and...
  11. (OKC) Mimaki/Inkjet Field Service Tech Looking For Possible Work

    Figured it's worth a shot, since as far as I know there are no Mimaki techs in the state. Not certified, but been working on Mimaki, Mutoh and Epson stuff for quite a while. Lots of experience with UV as well as general automation systems, PLC's and systems like that. Mostly been doing freelance...
  12. UJF 7151 plus thread.

    I think I am going to toss my hat into the "This printer is garbage" ring. Mind you, I have a 2015 era unit. So, things might have changed. Here's why: 1) Capping station, just a plastic tray, caps just drain straight into a pan that then goes into the waste tank. As far as I can tell, no real...
  13. Sub Tank Overfilling on UJF-6042 MKII

    You can flush the valves with a clip fitting and a syringe. Remove the bottle, clip onto the valve bottom side, push the valve in to open it and push/pull the ink back and forth with the syringe to dislodge built up crap in the seal. Note that you will likely get an overflow, opening the system...
  14. Need Help JFX 200 Loud Head Movement

    Might be too late, but check F699ZZ bearings, should be the ones you need.
  15. Sub Tank Overfilling on UJF-6042 MKII

    The negative and positive pressure adjustments are in different sections. If you have the install guide/setup booklet that came with the printer, it goes through the process, with pictures. I think it is on Mimaki's site as well.
  16. Sub Tank Overfilling on UJF-6042 MKII

    Need to do the pressure adjust on the throttle valve, should be within 15-20.
  17. Sub Tank Overfilling on UJF-6042 MKII

    If you need a service manual, let me know.
  18. Sub Tank Overfilling on UJF-6042 MKII

    61a/overflow is usually a sign of a worn cartridge valve letting ink link from the bottle station into the subtank and overfilling it. Part # M015864, not terribly expensive to swap, can also try taking the valve apart and stretching the spring out some to see if that makes it close better. Not...
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