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.