Huetron USB Printer Cable for HP OfficeJet 5510 with Life Time Warranty

hi everyone welcome back to my channel today i'm gonna show you how to fix an hp photosmart 5510 5520 or similar that doesn't print black this printer has been sent to me by a subscriber of my channel and he said that he tried to replace the printhead because he thought was the printed an issue with the printer that didn't print black but he didn't fix the issue even with a new printhead so he didn't know and most of the people don't know that these printers have a widespread problem that affects the purge pump the purge pump is a section of the cleaning station or purge unit or cleaning unit or that part and ink clogs inside of the conduits of the purge pump now we cannot buy new purge pumps so there are no available parts so the only one thing that we can do is try to fix the old pump that it's inside of these printers and it's not a expensive repair of course because we don't replace