Patent ID: 7868568
Filing Date: 2011-01-11
Classification: B41J

Abstract:
1. A motor driving device that drives a DC motor, the motor driving device comprising: a motor driving unit that repeatedly performs a change-over, wherein the motor driving unit changes an amount of a current inputted into the DC motor to an initial value at a predetermined timing, and then gradually increases the amount of the current from the initial value, in order to slowly move a driving target, driven by rotational force of the DC motor, in a moving direction; a status determination unit that determines whether or not the driving target is in a predetermined status; and an initial value renewal unit that changes the initial value when the status determination unit determines that the driving target is in the predetermined status, wherein the status determination unit comprises a reverse movement determination unit that determines whether or not the driving target is moved in a reverse direction, which is a direction opposite to the moving direction, and wherein, when the reverse movement determination unit determines that the driving target is moved in the reverse direction, the initial value renewal unit changes the initial value to a value larger than a current value.