Printing a MacDraw II document (any version) to the LaserWriter, a large area of the page may be covered by a large, solid-black, triangle - shaped polygon. This is caused by a corrupted arrowhead on the drawing. The arrowhead is located at the point of the triangle. Delete the arrow line, then redraw it. If the large polygon still prints, another arrowhead may be corrupted. Continue deleting and redrawing the arrow lines until the issue is solved.