HP Support: Does your printer not printing black? Check your printer’s vents, whether your printer cartridges are clogged or not. The problems should be in your cartridges if the printer does not print black, and for confirmation, you can try to use old one or new one cartridges. We are here to provide customer help for the printer, so if you are facing issues with the printer then contact our HP Printer Support expert for help. We are here to help you, so you should never hesitate to contact us. Our Webpage: https://www.customerservicehelpnumber.com/hp-printer-support Ref. URL: https://jw06033.hatenablog.com/entry/2020/12/26/134242 Thank You.