Hi my name is***** am sorry to hear you are having this problem.
Turn the machine off and open it as if you were going to change the ink.
Move the ink carriage by hand back and forth 3 to 4 times.
It should move freely, if it does not try the same thing with the machine on.
Then look inside with a flashlight and make sure nothing is in its path on either side.
If something is remove it, leave the carriage in the middle of the bar.
Then turn the machine back on (if it is on close the cover).
It should start to realign itself, give it a few minutes and then try to print something.
If this did not work click on reply to expert and let me know so we can continue.
If this did work please don't forget to leave a positive rating for my help it is greatly appreciated.