| 主权项 |
1. A printer that reverses a direction of movement of a medium, comprising:
a detection member comprising a shaft and a plurality of levers; a detector that detects rotation of the shaft; and a determining part that determines abnormality of a feed condition when a difference between a forward feed amount of the medium fed in a forward direction and a reverse feed amount of the medium fed in a reverse direction exceeds a threshold, wherein the detection member rotates the shaft when at least one lever contacts the medium, and the forward feed amount is measured from when the rotation of the shaft is detected until the direction of movement of the medium is reversed, and the reverse feed amount is measured from when the direction of movement of the medium is reversed until the rotation of the shaft is detected. |
