HP Part # Q3964A Replacement DRUM - 20,000 Pages - QuikShip Toner
HP Color LaserJet 2550L Toner Cartridges and Drum
Q9704A Q3964A drum chip for HP 1500 2500 2550L 2550LN 2550N 2800 2820 2840 laser printer toner cartridge - AliExpress
HP Q3964A 2550 Drum Unit (Blue Box) LaserJet 2550L 2550LN 2550N 2820 2840 – Ink Direct Corporation
Amazon.com : AZ Supplies Re-Manufactured Toner Cartridges Replacement for HP 122A, Q3960A, Q3961A, Q3962A, Q3963A, Q3964A for use in HP Color LaserJet 2550, 2820, 2840, 2550n, 2550LN (B, C, Y, M, DRUM,
Q3964A HP Color LaserJet 2550/2820/2830/2840 Imaging Drum - Sun Data Supply