Epson 1500 - Manual (Page 114)

VERSION
This Level 2 option displays the version number of the printer’s
controller and font. Press to see the C-ROM1 version
number, and then press or to see the C-ROM2 or FONT
version number. (The C-ROM2 option is available only on the
ActionLaser 1500.)
Menu/submenu
VERSION
Available options
C - R O M 1
C-ROM2
FONT
4-30 SelecType