To troubleshoot HP Envy 5660 Printer Says Offline, visit the official website of HP Printer and download the HP Print and Scan Doctor. Next, open the downloaded HPPS.exe file from the download section of the browser. Choose Start and select your printer’s name. If you can’t see your printer’s name on the list, turn off the printer, restart it, and then click on Retry. If you encounter issues with the connection, follow the on-screen instructions to resolve them. Now, you will see a screen asking you to update the printer driver. Click on Yes. If you see an option to make your printer the default printer, click on Yes. Lastly, try printing again. Check if the issue is resolved or not. In case you face any challenges while following the steps mentioned here, you can refer to the HP Envy 5660 Printer manual.