Abstract: In a pen plotter having a pen carriage moving laterally along a support beam over a plotting media, cutting apparatus for cutting the plotting media includes a first member carried by the pen carriage for lateral movement in combination therewith, a second member carried by the first member for movement perpendicular to movement of the first member between a first position adjacent the plotting media and a second position removed from the plotting media, a cutting blade carried by the second member for movement therewith such that when the second member is in the first position the cutting blade has a cutting edge thereof positioned to cut the plotting media and when the second member is in the second position the cutting edge does not contact the plotting media, a first abutting surface disposed adjacent one end of lateral movement of the pen carriage, a second abutting surface disposed adjacent an opposite end of lateral movement of the pen carriage, and a camming apparatus carried by the pen carriage and c