Epson 3260 - Manual (Page 61)

Selecting Character Fonts
To choose one of the resident fonts available with your printer,
press the
FONT
button.
The two font lights come on (0), go off (0), and flash (0) to
indicate the current selection. The table below lists the resident
fonts and shows how the font lights appear for each selection.
The Roman and Sans serif fonts can be scaled (or sized) from 8
to 32 points in 2-point increments, using your application
software or ESC/P 2 commands. If you need information
about controlling font size with your application software, see
your software user's guide. For a list of printer commands
available with this printer, see the Appendix.
Using the Printer 3-5