Homebrew PCBs

I killed my print head. It was clogged so I went about trying to 
clean it out. Bad mistake. I guess I should have tried it when I was 
not in a hurry and in a better mood. I used Windex which I have used 
successfully before to clean heads with no problems.  I used a 
syringe to directly inject into the cart nipple. I was able to get 
printing from some nozzles after my first try so tried cleaning a 
little more. Same results. Tried again and it got worse. Used the 
cleaning cycle for fun and got a few more nozzles to work. Tried 
doing some regular printing and it went from bad to worse very 
quuickly. Used the clean again and printed for a little while. I was 
looking at the nozzles as I injected the windex and they did not seem 
plugged as I was able to see the streams from the nozzles.  This 
leads me to think that they were not actually clogged but not 
shooting the ink instead. Possibly the ink is not being pulled into 
the head? After my last try when I went to print I heard a sizzling 
from the print head (very bad sound). This was the end of any 
printing. Must have fried the board in the print head somehow. I may 
try one more time. Epson still has refurbished C88s for $50 with free 
shipping. I have a new mod in mind where I will not cut the frame but 
make new offset bushings for the roller bars to lower them. This 
should give plenty of clearance for a 1/16" carrier and 1/16" board.