Trying to get a printout in black but can’t. HP printer not printing black is one of the most common issues experienced by HP users. The reasons behind this error are many but you should start by checking your black ink cartridge. Check if there is enough black ink in the cartridge and the cartridges are installed properly. Make sure you are using branded cartridges as local ones can cause many issues like this to your printer. If there’s nothing wrong with the cartridges, try restarting your printer machine as well as your computer. To do so, switch off your printer from the main source, unplug all the USB cables and leave the printer like that for a couple of minutes. After a few minutes open your printer again. Also restart your computer and try printing something to check if the problem is resolved or not.