The feed rollers can alternate easily. Remove paper from the printer drawer and slightly tilt the printer backwards, z. B. inferior a thick book in front. Then draw held by a spring to the top "arm" down and successively turn back on the wheel hubs to micro small clip to the wheel center and then pull the wheel sideways. Who is afraid, the wheels may be on the axis, but simply change the tire. On the rim the direction of rotation is imposed; this should be considered during installation so that the tires have the right "grip" on paper. The fact that the feed rollers are to be changed according to Lexmark, depending on the printer model until 300,000 pages / need, I think is very daring. Especially when you reach these 300,000 pages only after many years, the tires are cured after approximately 3 to 4 years and are no longer effective first heavier paper, then regular paper and then the annoying paper jam alarm goes off. The feed rollers are available both as a Lexmark-original spare parts (part number 40X0070.) - Quite expensive for a bissl plastic and rubber :-( or as "compatible" clone-items that are significantly cheaper care you have that one. if you have ordered and paid for the original Lexmark goods, not yet cheap Chinese replica is turned on. Even very large electronics retailer have forward China-replica-rolls in neutral bags delivered, although it was advertised with "Lexmark".
