Compuprint 6314 CDL Uživatelský manuál stáhnout pdf (Strana 28)

CDL – Programmer Manual

fig. 12 - Font 9

2.2.2 Bar codes

Each bar code has specific characteristics that distinguish it from others. In particular some codes

have limits to their length (a higher or lower number of characters cannot be used), others have a

checksum character to make their decoding reliable, others still have limitations to the valid ASCII

characters (letters and certain “special” characters cannot be used).

All bar codes have a nominal ratio

that guarantees reliable decoding.

In tab. 2 below, the characteristics of each of the bar codes are summarised.

The ratio is the relationship between the large and small bars (see positions

and

in the command syntax in sect.

2.1.2.1.3 on page 19).

1 2 ... 23 24 25 26 27 28 29 30 31 32 33 ... 52 53

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Compuprint 6314 CDL Uživatelský manuál Strana 28