Epson LQ-510 User Manual page 252

Commands Arranged by Topic
ESC SI
Format:
ASCII code:
Decimal:
Hexadecimal:
Comments:
Duplicates the SI command and the function of the condensed
button on the control panel.
DC2
Format:
ASCII code:
Decimal:
H e x a d e c i m a l : 1 2
Comments:
Cancels condensed mode set by SI, ESC SI, or SelecType and
returns printing to normal.
so
Format:
ASCII code:
Decimal:
H e x a d e c i m a l : 0 E
Comments:
Doubles the width of all characters on one line. This mode is
cancelled by LF, FF, VT, or DC4.
9-26 Command Summary
ESC SI
27 15
1B 0F
DC2
18
Select Double-wide Mode (one line)
SO
14
Select Condensed Mode
Cancel Condensed Mode