Digital BW, The Print

This may be silly but I'm probably not the only person who has 
tried to use wide rolls of paper with a  3000.
I got some "good deals" on rolls of paper that are too wide for the 
3000. I don't have a clue which is the best way to cut off the ends 
of the rolls of paper. Is there some type of saw out there that can 
cut through the paper cleanly? 
I have tried a hack saw but that was messy and I am clueless 
when it comes to using tools.
Thanks,
Thom Jackson