Tally Genicom T5023+ - Manual (Page 194)

Important notes on document processing Additional commands (Printer)
184 T5023/5023+ - Programming Guide
With the horizontal leading edge on the right, the right character box limit of the
90th character (with character spacing of 10 characters/inch) lies on the right
edge of the document. This means that print position 89 of the 90th character
lies 1/10 inch to the left of the right edge of the document (method of counting:
print position 0 for the 1st character, print position 1 for the 2nd character, etc.).
With character spacing of 12 characters/inch, print position 107 for the 108th
character lies 1/12 inch to the left of the right edge of the document accordingly:
Proceeding from these specifications, print position 0 can be calculated by coun-
ting backwards. The printing unit width of 90/10 inch must always be considered.