Welcome to the HP Support Community!
I reviewed your post and I understand that you are unable to change certain settings on the printer.
Don’t worry, I assure you I will try my best to get this sorted.
In this case, we need to perform a semi-full reset to fix this issue. However, as the steps to perform a semi-full reset are confidential and specific to your printer. I will be sending you a private message please watch your inbox for more information.
Let me know how it goes and you have a great day!
If you wish to show appreciation for my efforts, mark my post as Accept as Solution.Your feedback counts!
Cheers!