To borrow an LCD projector, users must sign the reservation sheet in advance to reserve dates and the projector can only be borrowed for 3 days at a time. When not in use, the projector should be placed in a bag with the lens facing up and the lens cover closed. It may require an adapter for newer laptops and the VGA cable must be plugged into the "Computer1" port. Users should test display settings and connections in advance, use external speakers, and check all parts are returned when borrowing is complete.