Hi I'm Bernie, I look forward to helping you. I'll try to be quick but some of my replies may take up to 5 min to get you the best possible answers.
This error indicates that something is blocking the carriage from moving (the carriage is the part of the printer that holds the ink cartridges)
This can be from a piece of paper being caught in the carriage path, or a mechanical issue like a broken gear
First, sharply unplug the printer while it is powered on, then double check these instructions for removing all paper jams (click below):
Especially look inside the printer where the carriage moves back and forth to make sure nothing is jammed in there and is blocking the path:
Remove all paper from the paper feed and blow it out with compressed air a few times > With a flashlight look in the paper feed
Make sure there is no foreign object like a paper clip in there
While the printer is still off, press and hold the power button for 3 minutes > Load 1 sheet of paper into the paper tray
Finally, while holding down the stop/cancel button, plug the printer back in, and power on the printer if it doesn't do so automatically. Now see if the error is gone.
If not, please reply back and let me know, we'll take other steps to resolve the issue.