These printers use the C4193A cartridge:

HP Color LaserJet 4500

HP Color LaserJet 4500 DN

HP Color LaserJet 4500 HDN

HP Color LaserJet 4500 N

HP Color LaserJet 4500 Series

HP Color LaserJet 4550

HP Color LaserJet 4550 DN

HP Color LaserJet 4550 HDN

HP Color LaserJet 4550 N

HP Color LaserJet 4550 Series

HP LaserJet 4550 ODN

Canon C LBP 400-4 Color

Canon EP 83

Canon LBP 460 PS

Canon LBP 2040

Canon LBP 2050