Tally Genicom Matrix Printer - Manual (Page 254)

Horizontal Character Spacing (SHS) CSI ... SP K
Data Structure ASCII CSI n SP "K" [A] set cpi
hex. 9B n 20 4B
dec. 155 n 32 75
Description For n the following parameters are available:
n hex. dec. character spacing
0 30 48 10 cpi
1 31 49 6 cpi
2 32 50 12 cpi
3 33 51 15 cpi
With this sequence the horizontal character spacing is defined.
The change of the character dimensions is implementation dependent.
18 Character Spacing