Abstract: There is provided precise paper feeding. A control unit for controlling a motor for use in a printer includes a position counter to count output pulses of an encoder that rotates to follow rotation of the motor and detect a position of a printing medium transferred by the motor; a target control amount modifying and calculating part to calculate a modified target value of a feed-amount of the printing medium based on a target value of a feed-amount of the printing medium and a previous stop position of the printing medium detected by the position counter, and set a counted value of the position counter to the modified target value; and a position control part to control the motor so that the counted value of the position counter falls into a predetermined range including zero.

Abstract: When a sheet feeding/processing control part judges that when a sheet feed request of feeding a sheet by a sheet feed amount is present, an actual cutting position passes a cutter, it divides the requested sheet feed amount into first and second sheet feed amounts. To start, a sheet is fed by the first sheet feed amount, so that an actual cutting position just reaches the cutter. In a state that the sheet stops, a cutter motor is driven to operate the cutter and to cut the sheet at the cutting position. After the sheet is cut, a sheet feed motor is driven to feed the sheet by the second sheet feed amount. Also in feeding the sheet by the second sheet feed amount, a similar process is executed.

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