Due to connection error, your printer says offline and doesn’t allow you to print. Therefore, first, you need to check the connectivity with the use of the HP Printer and Scan Doctor tool. Here are ways to download this tool and check the connection. Download HP Printer and Scan Doctor on your PC. To know more about it you can easily visit this link: HP Printer showing offline. Run ‘HPPSdr.exe’ file to install it. Once HP Print and Scan Doctor opens, click Start, and then select your printer. If a message “turn on printer updates” prompts on the screen, click “Yes”. If a screen prompts you to make your printer the default printer, tap “Yes”. Try to print.