User Guide 39Manual 2-Sided PrintingManual 2-sided printing can be done from the Multi-Sheet BypassFeeder (MBF) or from the universal trays.Media Specifics Use only the following paper types for manual 2-sided printing: Plain paper Heavy paper Glossy paper Thick card stock Thin card stock For the best opacity and feed reliability, use laser paper that is90 g/m 2 (24 lb. bond) paper. 2-sided printing on specialty media can shorten the life of printercomponents. For best results, do not use heavy toner coverage on Side-1 of amanual 2-sided print. Increase the top margin on Side-1 to at least12 mm (or 0.5 in.). Print quality may be degraded on the second side of manual2-sided prints for weights ranging from 120-203 g/m 2 (44-75 lb.cover, 65-112 lb. index).2-Sided Prints