I have one ink cartridge that is still coming up as damaged.

[DONDTS]

I have replaced my Cyan 951 ink cartridges two times and still getting a appears to be damaged alert. what can i do next to fix this?

I have unplugged and turned on twice already.

[BeemerBiker]

See if EWS can provide more information.
This explains how to Use the HP printer Embedded Web Server (EWS)
General ink cartridge help

I suspect it is just the printhead needing to be cleaned.

This link shows cleaning the 8600 printhead and removal is shown here.

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.