A printing apparatus includes a printing unit that prints on a roll paper, a transporting unit that transports the roll paper having been printed on along a transport surface, and a drying unit that performs a drying process (post-process) on the roll paper on the transport surface. The drying unit includes a cover (casing) that covers the roll paper on the transport surface. The cover has an inspection window that allows the roll paper on the transport surface to be visually inspected.