The connecting between your HP Printer and your computer is essential to ensure the smooth transfer of data. The computer and printer should be able to share data, such as print commands if you want to complete your printing tasks. However, there are times when the computer and printer connection is broken because of technical or hardware errors. This article will give you a general overview of how you can restore the HP Printer connects and fix the data transfer error. Since different HP Printer models have different troubleshooting steps, it is best that you call the HP Printer Customer Care Number and speak to an experienced printer expert to learn more about the exact steps you need to follow. Steps to fix HP Printer Error 40 Data Transfer The HP Printer Error Code 40 breaks the connection between your printer and your computer and does not allow you to give any print commands. You can have a look at the basic troubleshooting steps given below to try and re...