Here are a few tips that may help you get your printer working again:

1. Check the power cable and connections to make sure it is securely connected to the unit.
2. Check that the outlet or power strip is working, the printer may have been unplugged or the power has failed.
3. Check all cables and connections to make sure that there are no loose cables and/or bad connections.
4. Restart your computer. This may force the computer to send a signal to the printer to wake it up.
5. Check your printer settings. If the sleep or auto-off feature is enabled, this could be causing the issue.