hp 8600 ink sensor warning

[RiccardoLanaro]

error message stating ink system or printer failure, when i log into the webpage it says hp 8600 ink sensor warning, replaced the cartridges with new ones and still the error persists

[A_Gayathri]

Hi @RiccardoLanaro,

Welcome to the HP Support Community

I understand you are getting an error message ink sensor warning HP OfficeJet Printers 8600 on your HP Printer. Not to worry I will help you to get a resolution to resolve the issue.

To assist better:

• Are you using genuine HP ink cartridges?
• Does the copy print out the same way? 
• Was there any recent update on the printer prior to the issue?
• Was there any paper jam or carriage jam issue on the printer recently?

While you respond to that, Let's perform a power drain: 

• With the printer turned on, disconnect the power cord from the rear of the printer and also unplug the power cord from the wall outlet.
• Remove the USB cable, if present.
• Wait for 2-3 minutes, press and hold the power button on your printer for about 30 seconds to remove any additional charge.
• Now plug back the power cable straight to a wall outlet without any surge protector or an extension cord (This is important) and then plug back the power cord to the printer.
• Turn on the printer and wait till the warm-up period finishes and the printer is idle

Update the printer firmware 

• Click here to download and install the latest printer firmware from your product
• Click here to know different methods of updating the printer firmware.

If the issue persists, then please follow the steps mentioned in this document: HP OfficeJet Printers - 'Printer Failure' Error

Hope this helps! Keep me posted. 

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