Tally Genicom Matrix Printer - Manual (Page 168)

Just add up the values of the three parts of the byte to get the value of A.
1. Normal = 128
Descender = 0
2. First column is 1 = 0
First column is 2 = 16
First column is 3 = 32
First column is 4 = 48
First column is 5 = 64
First column is 6 = 80
First column is 7 = 96
First column is 8 = 112
3. Last column is 5 = 4
Last column is 6 = 5
Last column is 7 = 6
Last column is 8 = 7
Last column is 9 = 8
Last column is 10 = 9
Last column is 11 = 10
Last column is 12 = 11
Example:
Descender matrix field = 0
First column is 3 = 32
Last column is 10 = 9
Total value of = 41
E L
Download Character Generator 85