Epson 1000 Reference Manual page 94

First select the interface (P, S, or 0) by pressing v . Then
press ) to display the next emulation. The following appears:
Menu/submenu
CH P
The ActionLaser 1000 resident emulations are LJ-2P, LQ, and
FX. The ActionLaser 1500 resident emulations are 3/P/Si, LQ,
FX, and GL/2. The other emulations, Epson GL and I'S, appear
on the display if the corresponding identity card is installed. In
addition, if you have an ActionLaser 1000, the optional
PCL5/RITech board must be installed for 3/P/Si and Epson
GL/2 to appear.
Note:
When you are using a program you developed that sends PostScript
files, be sure that data is followed by a Ctrl-D (^D). Otherwise, the
printer does not switch the emulation properly with the Intelligent
Emulation Switchfeature. You cannot perform a DOS Print Screen
in the PostScript mode.
4-10 SelecType
LJ-2P
Available options
LJ-2P (ActionLaser 1000 only)
LQ
FX
3/P/Si (ActionLaser 1500 only)
Epson GL
PS
Epson GL/2
(ActionLaser 1500 only)
PS&3/P/Si (IES setting)
PS&LJ-2P (IES setting)
PS&LQ (IES setting)
PS&FX (IES setting)
PS&GL/2 (IFS setting)