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asked Jan 3, 2018 at 3:21am
Hp HP OfficeJet Pro 8600+

Ink System Failure

Error Msg: There is a problem with the printer or ink system......

I have been through the HP online troubleshooting guide in full and also replaced the CMOS battery and installed 4 new HP ink cartridges. Have also tried to bypass the ink level indicator system. Still unable to clear the error message. Any thoughts please?