Hp officejet pro 8600 manualhoneywell 7800 fault codes

HP OfficeJet 8600 Series Printer HP Officejet Pro 8610 e-All-in-One Printer To clear any error messages, reseat the printhead by repeating all steps in this HP Officejet Pro 8600 Plus e-All-in-One Printer (N911g) An Ink System Failure error message displays on the printer control panel, and the printer does not print. note: . Sometimes error messages persist after inserting the printhead.HP Officejet Pro 8600 Plus e-All-in-One Printer (N911g) This message might also include an error code such as 0x610000f6 or 0x61xxxxxx (where each 'x'