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Mimaki CJV-30 magenta running problems – help please?
Hi all,
hoping someone can help me, rather than pay £495 to have someone diagnose my problem…..
i have run a set of 7 drops of 5m wall covering, running no. 8 (the last one!)the magenta started to ‘thin’ out..causing miss colouring of the image.
the edge of the print is normally super sharp, but now the magenta is causing a very feathered type edge, and a kind of mist before and after (over the clamps).
photo attached.
all other colours are fine.
test print is fine and shows only maybe 2 missing nodes over the black and magenta.
loads of cleans, nozzle washes, encoder cleaned and just replace the dampers on the black and magenta and the head has not got any damage to it(that’s visible)
any help greatly appreciated, or maybe a reasonably priced engineer that doesn’t need to make an overnight visit. South London area.
thanks in advance.
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8 Replies
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Hi Richard.
Sounds like you’re pretty clued up with the machine if you’re changing dampers on it yourself. Do you know how to get into engineers mode? If so, try printing a nozzle pattern from #TEST\CHK PATTERN and try printing in various different modes (540×1080, 720×1080, 720×1440). It kind of looks electrical but it might only be in certain print modes.
Stafford
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Thanks Stafford, I looked after my Roland for 5years and changed pretty much everything, I did have an engineers service manual though, of which I don’t for the mimaki!
Are you able to tell the button sequence to enter the service mode?
You say electrical…….as in my other post, something blew in the housing at the back on Friday (flash and a pop), turns out it has only blew the fuse in the plug! Connected somehow maybe?
Talking to hybrid, and after cleaning the tubes through, they’re coming down to print head…cracked manifold or some kind of air leak.
It would be nice to fix it myself but I’m out of (basic) ideas.
Thanks for your help.
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I’m only going by the small amount of information I’ve seen on here of course but I think it’s either an electrical fault with the head or something supplying the head.
Power on the printer holding the function and remote keys to get into service mode but you do so very much at your own risk. I wouldn’t recommend changing any settings in there unless you know exactly what they are.
Keep the post updated as to what it is. I’ll be interested to hear what Hybrid find.
Stafford
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Another day of misery…….
Now have my PC back after the flash and pop saga on Friday….connected the printer and nothing. Not registering through any USB port, changed cables, still nothing.
Talked to signmaster/Hybrid (again!) and they seem to think it’s the main board.
My question is…..
I have a red LED light on the main board , I can do test prints from the control panel and access the service mode to do more test prints from there and the printer all sets itself up with media in and it’s ready to go. So, surely this information / control / action, must come from the main board?Once again, whilst loading media, a white flash and a pop came from behind the cover of the circuit boards. Changed the plug fuse and it powered up to the situation I’m in now…..
On the magenta problem, #test #chk pattern , all prints fine in all colours and in all dpi settings.???
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Hi
just an observation but could it be the loading mechanism as worn or pulling on electrical cable etcKev
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quote Kevin Flowers:Hi
just an observation but could it be the loading mechanism as worn or pulling on electrical cable etcKev
That, is a very good answer, Kev.
I’ve actually seen that before and hadn’t thought of it. Although this customer did have a 160 flex cable fitted to a 130 machine.
The mainboard will operate perfectly while the interface section is faulty. It’s actually the most common failure of a mainboard on a JV33 as the interface port is built in. Very frustrating!! If you plug the printer in to the PC, do you hear the bleeping noise you get when you plug in any other USB device? You certainly should, regardless of if the driver is working or not. If you don’t get any noise (assuming the speakers are plugged in a volume up of course) then it’s either the cable (easy enough to eliminate), the USB port on the PC (try a different PC or laptop) or, the mainboard.
Stafford
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The loading mechanism? …..causing the magenta fault?
With regards to the connection problem, I’ve tried 3 cables now, it’s a new PC and all the other usb items connect fine to all USB ports, just no sounds or recognition from the PC when the printer plugs in.
Giving up on Hybrid, being a non warranty customer puts me to the bottom of the pile, and at 1200 quid for a new main board I think I’ll buy direct from digi and give the rest to a local engineer to fit it for me.
Thanks all for your help and input,
Rich.
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quote Richard James Martin:The loading mechanism? …..causing the magenta fault?
The media clamp mechanism can catch the HDC FPC’s if they’re not run correctly.
This is the unfortunate thing with the USB port being on the mainboard. As the comms aren’t working, you can’t grab the parameter file from the board before replacing it, which means you have to set all the calibrations and user settings manually when the new board goes in. Only a couple of hours work to be fair but if you’ve got the parameter file, it’s in and out in an hour usually.
Stafford.
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