Of at least three drive sources provided inside a printer body, a carriage-driving motor and a transport motor are disposed on one side with respect to a center portion in a width direction that intersects a medium transport direction while a sheet-feed motor is disposed on the other side with respect to the center portion in the width direction. The battery that provides electric power to the three drive sources is disposed such that the center of gravity of the battery is on the other side with respect to the center portion in the width direction.