User-Defined Variable Bar Code Ratios

User-Defined Variable Bar Code Ratios

The user-defined variable ratio for bar codes is an optional parameter. The default ratios shown in Table 8 are overridden by the variable ratio feature. Four- and eight-digit ratios can be used, depending upon the bar code selected. Ratio data must be decimal values greater than 0. Enter R, followed by the actual bar code ratio. A colon must separate each element of the ratio.

Like standard bar code ratios, user-defined ratios are also interpreted from left to right, measuring the size of each bar or space, in dot width, in the following pattern: narrow bar : narrow space : wide bar : wide space. Enter either four or eight values depending upon the bar code type. See Table 8 for the number of values needed.

If the D parameter is specified, the ratios are represented in printer dots instead of IGP dots (60 x 72 dpi).

Note The IGP does not verify that ratio data creates acceptable wide/narrow element relationships for bar code readability. When designing unique ratio data, carefully plot wide and narrow ratios to conform to readable bar codes.

Variable Ratio Sample

~CREATE;TEST

SCALE;CHAR ALPHA 2;5;1;1;*Std. Ratio*

STOP BARCODE C3/9;X1;H7;D;3;5 ACODE39A PDF;B;N

STOP

/

/

ALPHA

2;30;1;1;*VAR. Ratio*

STOP BARCODE C3/9;XR2:2:5:5;H7;D;3;30 ACODE39A

PDF;B;N

STOP

END ~EXECUTE;TEST;1

~NORMAL

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Printronix LQH-HWTM manual User-Defined Variable Bar Code Ratios, Variable Ratio Sample