I'd assume it is an office copier that can produce lots of copies of scripts, receipts, invoices, signs for the sets etc. they might need all through the day. A

I'd assume it is an office copier that can produce lots of copies of scripts, receipts, invoices, signs for the sets etc. they might need all through the day. And by renting, if it breaks down they get an immediate replacement from the rental company (at zero cost) I guess. So don't need to worry about repair downtime.