Patent ID: 8366253

Claim:
A printer comprising: a carriage including a housing portion configured to house a cartridge, the housing portion including a contact portion provided on an inner wall surface of the housing portion which is configured to electrically connect to a contact point portion of the cartridge when housed in the housing portion; a cover provided on the carriage and configured to be pivotally movable and able to be set in a closed state, where the cover presses the cartridge housed in the housing portion, and an open state, where the cover opens the housing portion for replacement of the cartridge; a protruding member biased in a direction where the protruding member protrudes from the inner wall surface, so as to rotationally move; and a restriction member configured to restrict movement of the protruding member in a direction toward the inner wall surface, wherein when the cover is in the open state, the movement of the protruding member is restricted due to contact between the restriction member and the cover, and when the cover is in the closed state, the movement of the protruding member is not restricted due to non-contact between the restriction member and the cover.