Here's an easier way....only ONE roll out of its box at a time.
You take a roll off the printer, you immediately put it back into its box.
Why would you have more than one roll out? That's inviting trouble like scuffing or denting, etc.
As for keeping the rolls from unrolling, I put it back into the plastic bag and then stuff the ends of the bag into the end of the roll. This keeps them tight enough to slide back into the box.