Premium DC 7700 toner cartridge compatible with xerox machines 1 )Cartridge No.: DC 7700 2 )Suitable for: DC 7700 / 2220 3 )Color: Black 4 ) Pages yield : BK-27000pages,CMY-16000pages Products Features: *All products are 100% tested one by one prior to packing *Dark and even printing, no leaking. High quality and excellent printing results *Superior feature saves money by 50% or more Quality Guarantee : 1. We replace 1:1 for all the defectives caused by workmanship and materails 2. 18 mothes guarantee after manufacturing