Printer is a 360. So I thought I had a bad LM head as I wasn't getting any ink. Did cleanings etc etc to no avail. Replaced with new head and it printed fine for a bit then stopped as well, guessing new heads come primed with a little ink in them? Well it looks like I just ran out of LM ink and the printer was wrong as it said I still had 50ml left. Not sure long it was run that way but I think I need to purge the lines to get the ink flowing again. The service manual says to install service heads and then replace after purging. Will purging damage the heads? I guess my other option is a syringe and try and pull the ink through?