Amazon.com: CS Compatible Toner Cartridge Replacement for HP 2550N Q3961A Cyan Q3962A Yellow Q3963A Magenta HP 122A Color Laserjet 2550 2550L 2550LN 2550N 2800 2820 2830 2840 C M Y 3 Color Set : Office Products
Amazon.com: HP Q3961A 122A Cyan Original LaserJet Toner Cartridge For 2550 2800 2820 2830 2840 - 4,000 Pages : Office Products
Compatible HP C9701A (Q3961A) Cyan Laser Toner Cartridge