Epson ESC Manuale Utente Scaricare il pdf (Pagina 119)

B-12

LEFT and RIGHT delimiters, the System-Digit and the Check-Digit will be

printed as descending bars to make a field to host a 6-digits HRC string and the

System-Digit HRC to the left of LEFT delimiter (at about the middle of the

symbol) when f field is missing or set to 1; in this case, the Check-Digit will show

in HRC to the right of the RIGHT delimiter (at about the middle of the symbol),

when o field takes values 2 or 3: it will never show on HRC string otherwise.

UPC-EAN 2

DC4 DC4 ESC! n 5 p EM

ADD ON-2 bar code data fields contain numeric data only: question marks will

be printed in place of HRC string otherwise, if possible.

If 3-digit strings will be received within a DC4 DC4 ESC (... EM control sequence

and o check-digit option field is missing or takes NULL value, the symbol will

encode the first 2 digits and the 3

received digit will be used as check digit, even

though this may affect its readability; if o field takes 1 value, the 3

digit is

matched versus the internally generated check-digit an question marks will

printed in place of HRC string when mismatching, if possible.

If 2-digit strings will be received and o check digit field is missing or takes NULL

value, question marks will be printed in place of HRC string, when possible; if o

field takes value 1, the check digit will be computed applying the internally

available algorithm to the received string in order to properly encode the symbol.

If f field is missing or takes value 1, the 2-digits HRC string will be printed above

the Bar/Spaces symbol and its height will be part of the overall symbol’s height;

the check-digit will never show on HRC string. If f field takes value 0, the

symbol’s encoding will print at full height.

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Epson ESC Manuale Utente Pagina 119