Solved: HP Printer Error Code 49.4C02 The 49.4C02 error is the most common one that occurs with the HP printer. Are you finding it difficult to fix the HP Printer Error Code 49.4C02 ? If yes, do not worry. Make use of the guidelines on this page to fix the error so easily. The error arises due to improper connection between your HP printer and computer. Also, the error occurs if the HP printer software does not suit the operating system version of your computer or laptop. Find Simple Solutions in the Following Topics to Fix the 49.4C02 Error Quick Steps to Fix 49.4C02 Error: Always use the latest version of the printer software on your computer to get rid of the 49.4C02 error. Also, it is necessary to delete all the canceled print jobs. How to Update Printer Firmware? 1.   Visit the manufacturer’s site. 2.   Type the name & model of your printer in the search field. 3.   Locate the Driver or Software tab to select it. 4.   Search...