HP officejet 6500a - ink system failure?

Question

HP

in general, when trying to print or copy, it gives such an error, it also writes its code 0xc19a0013
bought new nano busters cartridges and a new PG and new ink like this
black color, did 5 cleaning again, black seems to appear but at the end of the page it is smeared, apparently the ink is running out,
called the service, they said that it was necessary to change some kind of pump, for 2800 plus work 1500, I wanted to know what it could be, maybe I’ll change the pump myself? hands like from the shoulders