These printers use the CN056AN cartridge:
HP OfficeJet 6100
HP OfficeJet 6100 EPrinter - H611A
HP OfficeJet 6600
HP OfficeJet 6600 E-All In One
HP OfficeJet 6700 PREMIUM E-All In One
HP OfficeJet 7110 EPrinter - H812A
HP OfficeJet 7510
HP OfficeJet 7510 A
HP OfficeJet 7510 Wide Format All In One
HP OfficeJet 7610 E-All In One
HP OfficeJet 7620 Wide Format E-All In One