problem printing green color

[Suliko]

I have an HP Officejet Pro 6830 and it is the best printer I have ever owned.  I use it with Instant Ink.

Just recently it has given me problems with the green color not printing correctly, sometimes very light green and sometimes a pale-yellow color.  Some areas of the printouts have perfectly normal dark green colors alongside the faulty colors.

Looking online I see that others have experienced the same thing.  I tried several solutions suggested but to no avail.  I have used several months’ worth of Instant Ink pages in a few days!

I have cleaned and aligned the printheads numerous times.  Sometimes the test page colors come out normally and sometimes they do not.

I have gone round and round in circles with virtual assistant.

[GOLD_MASTER]

Hello @Suliko .
What are the suggestions you have made?

[Suliko]

Thank you for your response.  I have uninstalled every HP program and file from my computer, with the printer disconnected.  There were just 3 files that would not delete whatever I tried.  They were in Program Files/HP.

I have reinstalled the HP Officejet Pro 6830 software from HP site but have not reinstalled Print and Scan Doctor etc. etc.

The print quality is now even worse than before with other colors affected not just green.

I saw this from previous HP community:   ‎10-24-2019 09:24 AM   Product: HP Officejet Pro 6830 All-In-One  

The liquid ink mixed in your printhead, that's why yellow prints green. The printhead is not replaceable on OJ Pro 6830, the fastest ( and probably cheaper than repair)  solution for you is a new printer.

Is this what I have here?  

[GOLD_MASTER]

@Suliko .

You can do the following up to 3 times:
1. Load unused plain white paper of letter size or A4 into the inbox. To obtain for more information, see Loading Paper.
2. On the printer control panel screen, tap Configuration.
3. Tap Printer Maintenance, select the desired option, and then follow the on-screen instructions.