Patent ID: 9139030
Filing Date: 2015-09-22
Classification: B41J

Abstract:
1. A carriage moving device, comprising: a motor; a carriage movable in a scanning direction, the carriage moving in a first direction along the scanning direction when the motor rotates forwardly, the carriage moving in a second direction which is opposite to the first direction when the motor rotates reversely; a facing object configured to face the carriage, the facing object having a plurality of reflection ratios at a plurality of positions in the scanning direction; a first sensor unit mounted on the carriage at a position where the first sensor unit faces the facing object, the first sensor unit having a light emitting unit configured to emit light to the facing object and a light receiving unit configured to receive light reflected by the facing object, the first sensor unit being configured to output a first signal corresponding to a light amount of the light received by the light receiving unit; and a second sensor unit configured to output a second signal in response to movement of the carriage; a controller, which is configured to execute: