- Check printer connections.
Make sure your printer is correctly connected to your computer and powered on. - Reinstall the printer drivers.
Make sure you have updated printer drivers installed for your printer. - Check the fuser for consistency.
Make sure the new fuser is securely installed and compatible with your printer. - Replace the fuser.
If the fuser is not properly installed, replace it with a new one. - Check the toner.
Make sure the toner cartridges have the proper level of toner.