My epson sx515w wont print black

From: https://www.computing.net/answers/hardware/epson-styles-nx420-printer-wont-print-black/85723.html

...I figured it out for my printer today... just got new ink, had the same problem, saw these posts getting me nowhere, so I figured ok the ink cartridge is fine... so what else is between that and the paper. I decided to go out on a limb and get a paper towel and clean off the little plastic nubbin that's inside the printer (the part that sticks into the cartridge, sticking out from where you place the ink) and it printed completely perfectly after that.

Remove the black cartridge and insert back into place, check out the cartridge removed from the print cartridge (where the ink comes out) should be moist, not wet black.if color print is likely to be clogged inkjet print head dry and requires a specialized intervention or replacement may involve cleaning the print head. If the cartridge is dry is not good means that the cartridge (cartridge happens when more time sitting unused in the packaging is damaged and allow contact with air.---replace cartdrige---

I have exactly the same problem with the black ink. Anyone have any solution

Had the same problem. I put some white spirit in a syringe and placed the syringe nozzle over the ink nozzel and squerted it in to unblock the system. Inserted a new cartridge. It now works again for me, so far so good ??

Clean print head with alcohol and cotton swab maybe dried up

Have you removed the tape from the top of cartridge?

This is a common problem I have found with Epson printers. If you don’t use the printer on a regular basis the printer heads can clog. I have found no way to clean the heads once this occurs. I will now only purchase HP printers because the printer heads are part of the ink cartridges. With every cartridge change you get new heads, end of that problem!

Some of Epson's cartridges went bad that way. It may be a bad cartridge. Get a new one, pull that one out and see what happens. If it works, call Epson for a refund. They had a class action suit for that type of thing, they lost and paid off. I would think they will help you right away.
C

In view of the original poster's lack of interest, I think we can call this one "Solved by Poster".

Hi, I have question?
The ink that yuo are change are original epson cartidge ink?If yes , try to head cleaning twice and then nozzle check ,then the result of test print are soild in color are good , the unclean head having plenty spaces within the color in test print.