Error code 49.4c02 is one of common error that displays when there is a problem with print jobs in the queue. When you come across this problem, your printer asks to restart again and again. To overcome HP Error 49.4c02, you have to delete the print jobs from the queue. After performing some troubleshooting task, if your printer still showing the same problem then get help from a live technician. Certified techies are always available at the support desk to help customers.