Kicker roller

A kicker roller configured to be in contact with the surface of a forefront paper sheet of a plurality of paper-sheets held in a stacked state and to perform feed-out of the paper-sheets, comprising:

• a friction part formed in at least one or two edges of the outer circumference of the kicker roller along a width direction thereof, the friction part having a coefficient of friction greater than remaining portions of the outer circumference of the kicker roller;
• a difference in levels positioned in the outer circumference of the kicker roller, the difference in levels being provided at a position adjacent to and anterior to the friction part along a rotation direction of the kicker roller;
• and
• a circumference part positioned in the outer circumference of the kicker roller, the circumference part being provided at a substantially same position as the position of the difference in levels with respect to the rotation direction of the kicker roller but provided at a different position from the position of the difference in levels with respect to the width direction of the kicker roller, the circumference part having no difference in levels.