2) What's the application you are trying to print from? Have you tried printing from a different application or devices?
While you respond to that, let's print a Print Quality Diagnostic page -
On the printer control panel, press the Down Arrow to scroll to Tools, and then press OK.
Press the Down Arrow to scroll to Print Quality Report, and then press OK. The printer prints the test page.
Post the Print Quality Diagnostic page here so we can help you further.
You may also refer to this document with steps to fix the " Print Quality Issues" issue applicable for your printer - Print Quality Issues
single cartridge mode
The printer you own can work in single-cartridge mode, wherein the printer will be able to print with one cartridge in the printer.which will help us identify if its a cartridge issue or a printhead issue
To try single-cartridge mode follow the below steps:
remove the black ink from the printer, leave the color in and try printing
then remove the color ink and, insert the black in and try printing
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