Tally Genicom Matrix Printer - Manual (Page 291)

Horizontal Position Relative (HPR) CSI ... a
Data Structure ASCII CSI n "a" [A] set horizontal position relative
hex. CSI n 61
dec. CSI n 97
Description n = 1 (default setting)
This sequence moves the print head to the right.
The unit depends on PUM (Positioning Unit Mode) and is either character positions or
defined by the SSU-function (Select Size Unit, see page 8).
Example:
CSI 8 a next character goes 8 positions to the right
CSI a next character goes one position to the right
Positions beyond the right margin are ignored.
Print Positioning 55