Epson LQ-2500 User Manual page 155

The bit image mode assignment is:
l
ESCK=ESC*0,ESCL=ESC*1,ESCY=ESC*2,
E S C z = E s c * 3 .
In addition, when the printer is initialized by turning on the power or
by an INIT signal, the data buffer is cleared of all text.
E - 2
Initialization and Default Settings