Summary: This worked great for the 90 day warranty period. Now jams all the time. I have already taken it in for service. Wish it had lasted. Printer was wonderful when it worked, super fast, clean sheets. Printer jams every 12 to 15 sheets now and overheats. Not worth the trouble.
Summary: I have had this printer installed at my place of business for about 1 year. I have constant paper jams from the add-on tray 2 that I purchased with the machine. This I believe is due to a design flaw which puts the pick up roller on a swing arm above a non spring loaded sloped bottom tray.
Summary: Sono agente al sud di una Compagnia del Gruppo Unipol e mi hanno dato 2 stampanti lexmark T640 in dotazione in sostituzione delle mie precedente HP 4050 Tn le quali non mi hanno mai dato problemi con qualunque tip di carta e con qualunque tipo di tempo (umido o secco).