Patent ID: 8419154
Filing Date: 2013-04-16
Classification: B41J

Abstract:
1. A motor control device comprising: a first motor that provides a driving force for rotating a roll on which a roll paper is wound to supply the roll paper from the roll; a second motor that provides a driving force for driving a transport driving roller which is provided on a downstream side from the roll along a supply direction of the roll paper and used for transporting the roll paper; a load measuring unit that measures a relationship between a load on the first motor and a driving speed of the first motor as detected by a rotation detector coupled to the roll when the second motor is not driven and the first motor is driven; and a motor control unit comprising a first output calculator that calculates an interpolation output that is based on the relationship measured by the load measurement unit and a driving speed of the second motor, and a second output calculator that performs a control calculation based on a transport speed and a position of the roll paper to determine the driving speed of the second motor, the motor control unit being configured to simultaneously drive the first motor using the interpolation output and the second motor using the driving speed of the second motor, thereby transporting the roll paper to the downstream side.