Inktoneram Compatible Drum Replacement for HP Q3964A 122A Color LaserJet 2820 2830 2840 2550 2550L 2550Ln 2550n (Drum) This package contains: 1 Inktoneram Replacement drum to replace 122A ( Q3964A ) drum unit. (THIS IS A COMPATIBLE REPLACEMENT PRODUCT ONLY. THIS IS NON-OEM .) To replace Cartridges with part numbers : Q3964A. Page Yield : 20,000 black or 5,000 standard color pages / each drum at 5% coverage Printer Compatibility: Color LaserJet 2550 2550L 2550Ln 2550n 2820 2830 2840 Warranty: Our Compatible Inktoneram Replacement drum to replace HP 122A drum are manufactured under strict ISO-9001 standards. They are excellent economical alternatives to the high-cost OEM drum units. These cost-effective drum will provide high quality prints that meet OEM standards and are guaranteed against defect. Our compatible Replacement drum to replace 122A drum come with a 90 day 100% money back guarantee.