Abstract: A paper cutter for achieving high speed cutting having a simplified structure since movement of a blade can be controlled by a linear motor. A low level of noise can also be realized since typical mechanical elements for transferring power are eliminated. The movable blade forms less than a fifty degree angle with respect to a blade edge of the stationary blade, in the direction of blade motion, so that locally concentrated wear it minimized. By using a rotary blade as a movable blade, paper can be cut in both directions by reciprocating the movable blade.

Abstract: A movement and rotational movement of the movable blade of the paper-cutter of this invention is constructed with a mechanically engaging mechanism such as a screw mechanism or a pinion/rack mechanism, so that there are no technical problems found with the conventional type of the paper-cutters such as slackening and/or cutting-off of the wire and coming-off of the wire from the drum. Moreover, since it is not necessary for an additional means for providing tension force on the wire, a longer-term stable cutting operation can be achieved. Furthermore, since the fluctuation in the manufacturing accuracy and deformation caused during the production process of the screw grooves as well as case body itself can be controlled and minimized by the screw mechanisms to some extent, the strict requirements for components accuracy can be reduced, resulting in an effective cost-down.