The printer appears to be on your network, but a message appears on HP Printer offline windows 7. The printer is sometimes physically attached to the computer, but still appears as an HP Printer is offline. There are several troubleshooting measures you can take to fix the offline mistake in the HP Printer. First, you can run the HP scanning software and you can reset the print environment if that doesn't work. You may also need to check if you have properly installed the drivers.