Tally Genicom Matrix Printer - Manual (Page 255)

Character Spacing (SCS) CSI ... SP g
Data Structure ASCII CSI n SP "g" [A] set character spacing
hex. 9B n 20 67
dec. 155 n 32 103
Description n specifies the character spacing
The unit is either decipoints or depends on the SSU selection (Select Size Unit, see page 8).
The character size will not be changed.
Character Spacing 19