In The I239X Emulation Mode; In The Epson Gl/2 Mode - Epson AcuLaser C4000 Reference Manual

In the I239X Emulation Mode

The available symbol sets in the I239X mode are Pc437, Pc850,
Pc858, Pc860, Pc863 and Pc865. See "In the ESC/P2 or FX Modes"
on page 348.
The available fonts are EPSON Sans Serif, Courier SWC, EPSON
Prestige, EPSON Gothic, EPSON Presentor, EPSON Orator, and
EPSON Script.

In the EPSON GL/2 Mode

The available symbol sets in the EPSON GL/2 mode are the same
as those in LaserJet4 emulation mode. See "In the LJ4 Emulation
Mode" on page 344.
350 Symbol Sets