I recently was given a pc600 and when we did the test print everything was fine. Upon getting it set up with the software and cleaning the head, the test print came out with about a 1/4 gap between the print. As you can see in the pics it looks like the center of the head is not heating up. Just wondering if this is a blown head or not, i have a line on new oem heads but i have to buy three so i want to make sure this is what it is. Thanks in advance!!!!! Chris P.S. i have the service manual and all the test came out fine head temp and voltage.[/ATTACH]