Epson ActionLaser Plus User Manual page 130

FX Emulation
Unsupported commands
The following commands are not supported in FX emulation. If sent
to the printer, they are ignored.
Command
Cut sheet feeder operation
Select user-defined set
Define user-defined characters
Disable paper-out sensor
Enable paper-out sensor
Copy ROM into RAM
Select justification
Select immediate print mode
Reverse paper feed
Select NLQ font
Select half-speed mode
Select Near Letter Quality
Unidirectional mode (1 line)
Turn unidirectional on/off
5-32 Printer Modes
ASCII
ESC EM
ESC %
ESC &
ESC 8
ESC 9
ESC :
ESC a
ESC i
ESC j
ESC k
ESC s
ESC x
ESC <
ESC U