A printer according to the present invention selectively comprises, a cutting configuration for a receipt printer for printing a receipt and a cutting configuration for a ticket printer for printing a ticket, as a cutting configuration for cutting a printed part of the paper roll. The cutting configuration for the receipt printer includes a fixed blade mounted to the upper frame and a movable cutter unit mounted on the lower frame to oppose the fixed blade through the paper roll to be driven by a driving source to cut the paper roll. The cutting configuration for the ticket printer includes a hand cutter mounted to at least one of the upper frame and the lower frame.