Canon BJ-10sx - Manual (Page 45)

Font List
You can print the font list in BJ-10e mode only. It is not available in
Epson LQ mode. The font list shows Courier characters in several
available print styles and pitches.
Starting the font list
To start printing the font list, follow these steps:
1. Press the POWER button to turn off the printer.
2. Press and hold the PITCH button, and press the POWER button
until the beeper sounds.
3. When the printer beeps, release the POWER button. When it
beeps again, release the PITCH button. The POWER and
ERROR indicators light.
4. Insert a sheet of paper into the printer.