Hii my name is Luna Falon i am from the technical team if you are facing a problem then you can visit our site. If HP Print and Scan Doctor fails to fix your printer issues, there are a few steps you can take to further troubleshoot the problem. Firstly, ensure that you have the latest printer drivers installed on your computer. Visit the official HP website and download the most recent driver for your specific printer model. Additionally, check for any firmware updates for your printer and apply them if available. If the issue persists, try uninstalling and reinstalling the printer software on your computer.