A HP cyan and Black cartridge is essenti alfor printing in colour and this 920XL cartridge can be used with HP 6500 / 6000 / 7000 series printers.
Models that are compatible:
HP Officejet 6000HP / Officejet 6000 WIFIHP / Officejet 6500HP / Officejet 6500 WifiHP / OfficeJet 6500aHP / OfficeJet 6500a PlusHP / Officejet 7000HP
Officejet 7000 WideFormat / HP Officejet 7500A.