I have an HP F2180 all-in-one printer. I've been trying to print, but the black colour isn't coming out.?

The software can read the ink levels, and it's high, but when I try to print, only the colured parts come out. Plz help. I have an HP F2180 all-in-one printer. I've been trying to print, but the black colour isn't coming out.?
Replace the black cartridge. The cartridge could be defective or empty. The ink levels are only an estimate. The printer has no way of knowing how much ink is actually in the cartridge. It estimates the levels based on how often it is used, and that system can get confused for a number of reasons.