Samsung ML-3750ND - Page 72

Understanding display messages
72
4. Troubleshooting
Toner-related messages
Message Meaning Suggested solutions
Install Toner A toner cartridge is not installed. Install a toner cartridge.
Not
Compatible
Toner
cartridge
The toner cartridge you have installed is not for
your machine.
Install a Samsung-genuine toner cartridge, designed for your machine.