Glue paper to back of platen cover to raise depressed areas of cover.
What does a Platen Builder-Up do?
Glues paper to back of platen cover to raise depressed areas of platen cover and reduce clearance between paper and printing head of printing press: Holds platen obliquely to electric light to locate shadowed depressed areas of platen cover, and draws contour rings around depressed areas, using pencil. Cuts out paper to fit within contour lines and cements paper onto back of platen cover to raise depressions in platen cover, using razor blade and paper cement. Examines printed material to detect defects in printing due to platen face cover depressions. Writes requisitions to order supplies.