Lexmark Optra E312, E312L       User's Guide (7.5 MB) Setting up the printer, loading paper, installing options, and safety information     Product: Optra E312, E312L Language: English Change Your Selections   Additional Publications Card Stock & Label Guide (705 KB) - Choosing the proper media for your printer Technical Reference Details about printer functions and commands. Service Manuals Service manuals available for Lexmark printers.