is accessed so that light collector assembly 30 can pivot about pivot point 80 at step 202 laser scanning optical system 50 is activated whereby a laser beam is directed toward scanning platen 20 and both leds led 100 and 102 are actuated i e lit next at step 204 adjustment member 82 is turned moved translated in one direction for example if turned counter clockwise to a position past wherein one of the leds led 100 or 102 is no longer actuated i e goes out this condition indicates that the laser beam is abutting or directed on one side of slot 36 a it is noted that continuing to turn adjustment member 82 in the first direction until the second led goes out will indicate the amount of skew in the scanline opening in the collector a numerical value for this skew can be calculated by converting the number of turns required from the first leds deactuation to the second leds deactuation into a linear measurement at step 206 adjustment member 82 is turned moved translated in a second direction opposite the first direction for example clockwise if the first direction was counter clockwise until both led 39 s are re actuated this is referred to as a first position p 1 then a number of turns n is counted from this first position p 1 in the second direction to reach a second position p 2 wherein one of the leds led 100 or 102 is no longer actuated step 208 this condition indicates that the laser beam is abutting or directed on another side of slot 36 a the number n of turns movement in the second direction to reach the second position p 2 from the first position p.