Specifications

CHAPTER 2 PCL - 49
5.1.13. Selecting the default fonts
To set the primary font settings to those of the printers default font and discard all the software settings you have
made in the meantime, send the printer the following escape sequence:
Esc(3@ (27)(40)(51)(64) <1Bh><28h><33h><40h>
To set the secondary font settings to those of the printers default font send:
Esc)3@ (27)(41)(51)(64) <1Bh><29h><33h><40h>
5.1.14. Switching between the primary and secondary fonts
To select the primary font as the font for printing send the printer the SI control code:
SI (15) (0F)
To select the secondary font as the font for printing send the printer the SO control code:
SO (14) (0E)