Printer Failure THere is a problem with the printer or ink system.

[Tamlyns1]

Printer Failure. There is a problem with the printer or ink system. I have exhausted all recommended troubleshooting options. The issue started when I replaced the cyan cartridge, which was very cold. It has warmed up to room temp after a day of sitting, but the error message will not go away. I've reset the head, turned the printer on and off, replaced all cartridges, and wiped the copper contacts clean. Help!

[BeemerBiker]

Dried ink or dirty contacts: glue, tape, debris

Probably needs a good cleaning

General advice on printhead cleaning is here.
This link shows cleaning the 8600 printhead and removal is shown here. This video for 86xx is good

This is another type of printhead cleaning, different from the above.

Cleaning and removing ink is shown below by our "Scullery" team.

An HP original video on how to clean the printheads by our experts. Yes, this can get messy, but it works. If your ink levels are good but you are printing blank pages then this is likely the solution.

Official HP advice on cleaning.

Some printers have a printhead cleaning procedure.

To clean the printhead on an HP printer, access the printer settings through the HP Smart app, navigate to "Print Quality Tools," and select "Clean Printhead"; this will initiate a cleaning cycle where the printer will automatically run a cleaning process to clear any clogs in the printhead

Inkjet and printhead cleaning kits are available

Consumer inkjet printer printheads typically last for several years, with some lasting up to 10 years or even longer. However, the lifespan can vary greatly depending on usage, maintenance, and environmental factors.