Patent ID: 7784928

Claim:
A printer comprising: recording heads configured to record an image on a recording medium; a recording medium conveying unit configured to convey the recording medium along head surfaces of the recording heads; a displacement device configured to displace the recording medium conveying unit to a proximate position proximate to the head surfaces, and to a remote position away from the head surfaces; and a housing that stores the recording heads, the recording medium conveying unit and the displacement device, the housing comprising: an aperture formed on a lateral side thereof and a cover that covers the aperture; and a motor configured to rotate in a first direction and in a second direction opposite to the first direction; and a planet gear configured to receive rotation in the first direction and the second direction from the motor, wherein the planet gear is configured such that, when the planet gear receives the rotation in the first direction, the planet gear does not transmit the rotation to the displacement device and, when the planet gear receives the rotation in the second direction, the planet gear transmits the rotation to the displacement device to displace the recording medium conveying unit from the proximate position to the remote position.