racerchick72
New Member
The black/cyan head in my SP300V was deflecting the black exceptionally bad. The machine worked very well, otherwise and the cyan nozzels were perfect. I did a heak soak, head flush, changed the dampers, capping station, and no improvement (also put in all new roland ink cartridges after the complete flush, just in case the ink was old/bad). So after speaking with my local Roland tech, he suggested that since the black head is the first in the line, perhaps it had struck some tunneled media and that damaged the head. He told me I needed a new print head. I ordered a genuine Roland printhead with the head rank numbers. It arrived two days later and I followed the service manual to the letter installing it (and yes, I did have the sub and main power off and the printer unplugged during the entire installation). However, when I got to the step where the manual said to check the thermistor, it read 0C/32F. 
Of course when you turn the machine on it read "temperature too low" because the head thermistor isn't reading properly. Did I get a bad head? This is the extent of my technical capability! I'm not sure what to do next, other than calling the Roland tech and paying out the behind to get him here. I tried cleaning the contacts on the ribbon cables that go to the head and they look to be in good condition (no cracks, dry rotting, etc.). Anyone have any suggestions?
Of course when you turn the machine on it read "temperature too low" because the head thermistor isn't reading properly. Did I get a bad head? This is the extent of my technical capability! I'm not sure what to do next, other than calling the Roland tech and paying out the behind to get him here. I tried cleaning the contacts on the ribbon cables that go to the head and they look to be in good condition (no cracks, dry rotting, etc.). Anyone have any suggestions?