I have run into the following type of problem from time to time and resolved it by restarting the computer to hopefully free up memory for the printing process but I am wondering if there is a better way? 
In this case my problem is this: I am trying to print sample proficiency tests from years back. My computer says there is not enough disk space to do this. I am trying to print to an HP DeskJet 712.
What does it actually mean when it says there is not “enough disk space” and how could I correct this situation?
TIA
