How to Re-prime the HP Continuous Ink Supply System (CISS) 950/951 932/933
How to Re-prime the HP Continuous Ink Supply System (CISS) 950/951 932/933 8600, 8610,8620, ...
Fix the : "One or more of the cartridges appear to be damaged. Remove them and Replace with New cartridges."
If still problem you have to Downgrade the firmware