To provide a printer and an issuing apparatus for effectively preventing a user from mistakenly inserting a card into a discharge port of tickets or the like without increasing the number of components.

In this printer or the issuing apparatus having a printer built-in, an outlet of a discharge port (14a) for discharging a printed sheet is formed into a shape other than a linear shape, such as a corrugated shape or a "dogleg" shape when seen from a front thereof. Further, the discharge port is preferably formed to be gradually reduced in opening area from an inlet side thereof to an outlet side thereof.