Here are some of the things you can do to troubleshoot your printer for toner or ink cartridge issues:

1. Make sure the cartridge lid is properly closed
2. Clean cartridge contacts and document feeder rollers
3. Check cable connections between the printer and the computer
4. Test the printer on another device
5. Turn off and turn on the printer
6. Run a printer and network scan
7. Check the level of each cartridge and replace if necessary