These printers use the Q5945A cartridge:
Click On a Printer to View it's Cartridges
          HP LaserJet 4345 MFP
          HP LaserJet 4345 X MFP
          HP LaserJet 4345 XM MFP
          HP LaserJet 4345 XS MFP
          HP LaserJet M-4345 MFP
          HP LaserJet M-4345 X
          HP LaserJet M-4345 XM
          HP LaserJet M-4345 XS
          Kodak DIGITAL SCIENCE 1000 PS