"First check the main board for the fuse - if fuse is done, then you are shorting out
If fuse is good, then you toast the head
On the SP you can swap the cables between the heads to see if it will print and that will help trouble shoot. If you toast…"
i recently cleaned my printheads which the yellow/magenta was working somewhat, black and blue werent took both out flushed them and now black blue working but magenta yellow isnt at all any suggesions. cap heads just replaced used a syringe and getting tight fit on magenta/ yellow. See More