It is time to buy a new printer.
That old HP is costing a fortune in ink cartridges. I got rid of a similar Deskjet 882C a decade ago because the cartridges dried out in 2-3 years even with minimal use. A common problem is that the drive belt wears out, resulting in wavy printout.
A monochrome laser printer will have much lower running cost. You can get one with wireless network connectivity built-in for essentially free. I have had good results with Brother.
Ed