CAIRE 10,000 page (TM) High Yield Compatible Replacement Lexmark MX310, MX410, MX510, MX511, MX610, MX611 Toner Cartridge 10,000 page yield, to minimise your downtime and service calls and drive your printer to maximum productivity. Extended '2 Year 100% Quality Satisfaction' Guarantee | No risk to your printer OEM warranty | Shelf Life: 24-36 Months Quality: Engineered to meet OEM standards If there is still toner in your cartridge, the last page will look as good as the first! Triple tested for quality assurance: First, we print test 100% of cartridges before packaging.Second, we perform monthly life testing at the manufacturing site.Third, our technical engineers test samples from our warehouse inventory. Compatible Laser Printer Model: Lexmark MX310dn, MX410de, MX510de, MX510dte, MX511de, MX511dhe, MX511dte, MX610de, MX611de, MX611dhe, MX611dte