HP (Hewlett Packard) Color LaserJet 1600 (CB373A ) is a single-pass color laser printer manufactured by HP for both home and office use. It prints up to 8 ppm with resolution 600 x 600 dpi on papers ranging from 3ﾔ x 5ﾔ to 8.5" x 14ﾔ. The LaserJet 1600 comes with standard 250-sheet paper capacity and can be upgraded to 500 sheets with an additional tray. HP Color LaserJet 1600 uses HP (Hewlett Packard) 124A Black and three Color (Cyan, Yellow, Magenta) cartridges. Cartridge model numbers are Q6000A, Q6001A, Q6002A, and Q6003A.