Sometimes the paper james because of various resons. Make sure that during the whole process, the printer is connected to PC and read to print. First, pull gently the paper from one side and from the output side. Clear all the paper and any other leftovers then power on the printer and remove the power cable from its back side. Wait about 15 seconds then plug the cable back. On the computer, use the support software to print a test page to make sure everything is working. The printer should return to normal working condition after these steps. If you keep having errors, you might need to send it to warranty service because it could be a hardware problem.