Jv3 slider board problem?

[dlpoling]

Im refurbing my jv3, it prints Lm all the time. test patterns or whatever If the carrage moves it seems to try and print. Have used different heads and cables same result. anyone heard of this?

Thanks Doug

 

[MikePro]

i've heard of someone having this issue before... there's an old post somewhere on these forums, i just know it.

have a feeling it ended up being a board issue.

 

[Dave Rowland]

only one head?

thinking cabling all the way back to the main board is unplugged.