Without the information I requested. I can only give you a general answer, but I hope this helps
please turn off the printer remove the power to the printer unplug it from the power socket?
Then wait 10 minutes,
connect the power again to the printer,
turn it on and tell me please if it is now operating correctly.
Once done, please restart the computer
If that does not work, remove all of the ink cartridges, then clean the metal electrical contacts on the back, as well as where they mate up inside the printer, using qtips and rubbing alcohol. Dry well, then reseat the cartridges. Then wipe down the encoder strip, which is a clear plastic strip running the width of the printer, that sits just slightly above and behind the carriage.
Then reset the machine:
unplug power at the wall outlet
wait 5 minutes, and turns it ON
If still not working, then you might need to replace cartridge on your printer
I hope this can be helpful, give it a try and please feel free to reply here in case you need anything else. Thank you!