Have a customer that prints a large quantity of labels daily. They use full sheets at a time, 30 up labels out of the drawer. Most of the time, there is no problem, however, if they print a large number of them at a time, it seems to pull too much heat out of the fuser and some of the labels will not fuse properly allowing the toner to smudge. The medical software they use will not allow the use of paper type settings so using thick/cardstock/etc will only make it pick paper from another drawer. This happens on multiple machines of the same type and changing the fuser has not helped either. Was recommended not to change the fuser temps as it may cause failures in the fuser... any other suggestions?