Tally Genicom T5023+ - Manual (Page 152)

Definition of characters Character set commands
142 T5023/5023+ - Programming Guide
Using the control command ESC &, the data bytes of one or more characters
defined by the user can be transferred:
ESC & (n1) (n2) (n3) (d0) (d1) (d2) (data 1) (d0) (d1) (d2) (data 2) ...
The meaning of the individual parameters is explained in the command descrip-
tion of ESC & ... (see section “Transferring the character definition” in this chap-
ter).
Meaning of the parameters d0, d1, d2: