Hello, I've had a big problem with my BN-20 printer for a few days now, first it all started because I wanted to change the print head damper (because the yellow wasn't coming out anymore), during the 1st reassembly I had a bit of liquid in the print head cable plugs, and when I restarted I had a problem with the print head leaking (all the inks were coming out at the same time), Then, after asking a professional for advice, I replaced the 4 print head cables with new ones and cleaned the head (and dried it completely). After changing the cables, I was able to run a few nozzle tests, then after about 10 tests, I ran a versawork print test and the problem came back. ... do you know what to do? Thanks a lot
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Need Help Print problem Roland BN-20
- Thread starter sekorse
- Start date
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- #inkproblems bn20 roland
From the sound of it you have fried the head. The nozzle test doesn't print with all the nozzles and uses a tiny amount of ink. When you run the actual print test it uses all the nozzles and more ink.
If you had ink get into the print head cable plugs this will short the head if you tried to use it without completely cleaning it out before trying to power on the printer.
If you had ink get into the print head cable plugs this will short the head if you tried to use it without completely cleaning it out before trying to power on the printer.
It will either be the head, or it could be the head carriage board but this is less likely. Normally if this goes then whatever you try and print will just print solid black over everything, even on the nozzle test.
I would also order more new head cables as well as the head as these need to be completely clean when you fit them
I would also order more new head cables as well as the head as these need to be completely clean when you fit them
What I mean is that the problem occurred during the 1st reassembly (where the liquid got in), but during the 2nd reassembly with the new cables it worked at first, then the problem came back. How could the card have burned out if it worked again between the 2 reassemblies... it would have repaired itself between the 2 and burned out a second time?
adamfromayr
New Member
I feel your pain Make sure you read my posts Make sure cables went in one is different one only has 29 pins the other 3 have 29 pins
did you try other inks?
did you try other inks?
Yes sure, 3 cable 29pin 1 cable 28pin, and ink are original EcoSol Max 3
adamfromayr
New Member
Check the 2 x fuses on the mainboard
Will still print if its blown but will cause issues
Ive Done everything and had issues with mine
So ive ordered loads of spare parts and just fired my head also
The head has fragile side cables, i just snapped mine so watch those side cables!
Will still print if its blown but will cause issues
Ive Done everything and had issues with mine
So ive ordered loads of spare parts and just fired my head also
The head has fragile side cables, i just snapped mine so watch those side cables!
One thing that could be worth replacing is the print carriage board. These can cause problems. I have seen them before print fine sometimes, and other times would cause the same issue you have where they just fire one or all of the channels constantly and flood the vinyl with ink. If they are failing this can be quite random
the ink is HIGHLY CONDUCTIVE, you really have to be meticulous cleaning after a spill. many times, people don't remove the ink BETWEEN THE CABLES, where the ribbons are stacked. ink has very low surface tension & manages to leach into places you would think were impossible for it to reach
adamfromayr
New Member
Good point! I ordered new carriage board cables hardly no one sells them had to order from Digisupplies and wait a MONTH till they get here!
I had one x bad carriage board cable bad end on one
adamfromayr
New Member
GREAT POINT Im glad you made that note, as its very important im glad you said that!
as i was wondering about this last night! What parts are conductive i was thinking of using silicone at one point and wondered last night if it was conductive or not
Thanks, this board ?
Yes I have a fuse on the mainboard and a fuse on the power board, how do I check them please? Thanks
adamfromayr
New Member
I used a multi-meter
I just done mine guess what
FUSE Blown
So took my last DX7 printhead off inside it was soaking
This is what would have blown my fuse
GUTTED Lost 3 x DX7 Printheads now
I used needle pinch nose pliers
a LED Magnifying glass
Yes my board still lit up and worked partially but fuse was dead!
I just done mine guess what
FUSE Blown
So took my last DX7 printhead off inside it was soaking
This is what would have blown my fuse
GUTTED Lost 3 x DX7 Printheads now
I used needle pinch nose pliers
a LED Magnifying glass
Yes my board still lit up and worked partially but fuse was dead!
adamfromayr
New Member
Definitely! 100%
The head is super fragile so dont take it out unless YOU HAVE TO!
Thats the last resort unless you see it needs cleaned around the sides or looks damaged etc!
Im going to have to order a new head also once its here my machine will be 100% ready so all i have to do is slowly and carefully place the head in a clean "Garage" he he
Checking fuses is so much easier than taking out a head dont be tempted !
The head is super fragile so dont take it out unless YOU HAVE TO!
Thats the last resort unless you see it needs cleaned around the sides or looks damaged etc!
Im going to have to order a new head also once its here my machine will be 100% ready so all i have to do is slowly and carefully place the head in a clean "Garage" he he
Checking fuses is so much easier than taking out a head dont be tempted !