Lexmark Optra E310, E312(L) 6K printcartridge zwart

\nToner Saver The Optra E312 printer encompasses five user-selectable Toner Darkness settings plus a toner save mode. This allows customers to choose their own preferences for print darkness and toner savings. Customers can achieve up to 50% toner savings in toner save mode, enabling them to control printing costs\nCompatibility This 6,000 page print cartridge is 100% compatible with the Optra E310, Optra E312 & Optra E312L.\nOperation ReSource Operation ReSource is a free and simple way for an individual user to return empty cartridges directly to Lexmark for appropriate recycling. Each cartridge carton includes repackaging instructions for the empty cartridge and a prepaid postage label specific to each country. The user simply places the empty cartridge in the packaging and carton received with the new replacement cartridge, reseals the carton with the return label on the outside , and drops the repackaged empty in the outgoing mail for a no-cost return.