Using the control panel button:
Turn off the printer.
Make sure that the front cover is closed and the power cord is plugged in.
Hold down Go as you turn on the power switch. First all the LEDs will light up, and then the Status LED will turn off. Release Go. Make sure that all the LEDs have turned off.
Press Go twice. The printer will print a list of the internal fonts.
Using the printer driver:
If you are using Brother's Windows® printer driver, you can print a list of the internal fonts by clicking the Print Fonts button in the Support tab.