QTR-Quadtone RIP

Do the Media Street inks have a temperature range? I was just using my
printer yesterday and today the heads were clogged a little. I was
able to run several cleanings but the black is still a little clogged
with 5 small gaps in the nozzle check pattern. The room I'm printing
in is a little on the cool side around 60 degrees.

Thanks,
Bill