Try this:

Unplug turn off your printer.
unplug its power cable
lift the printer up
put it in an upside down position
shake the printer from left to right for 2 mins.

This troubleshooting will help you find out if there's any foreign object stuck inside the printer.

after that put the printer back to its position, turn it on then try a test print.

If you can also locate the rollers at the back of the printer, try to clean it as well.