The Lexmark laser print cartridges are specifically designed to assure optimal print quality, with crisp, dark output from first print to last. A clean hands design means easy cartridge installation and removal. For use with the Lexmark Optra M410(n) and M412(n) printers. Yield: Up to 5,000 pages @ approximately 5% coverage at toner darkness setting of 8.\nToner Saver The Optra M410 and M412 printers support ten user-selectable Toner Darkness settings (1-10). This allows customers to choose their own preferences for print darkness and toner savings. Customers can achieve up to 50% toner savings across the range of print darkness settings.