Printronix P5000LJ Series, Руководство программиста

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40
Chapter 2
Configuring the PCL-II Emulation with Control Codes
Follow the example below to convert a ZIP Code into a bar code:
1. Calculate the check digit for the ZIP Code 45834-8844-70:
a. Add the digits of the ZIP code:
4+5+8+3+4+8+8+4+4+7+0 = 51
b. Subtract from the next highest multiple of ten:
60-51 = 9
The check digit is 9, so the number for conversion is 45834-8844-709.
2. Separate the ZIP Code + digit into digit pairs:
45834-8844-709 = 45 83 48 84 47 09
3. Convert the digit pairs into binary code:
Example:
45 = 01001 01010
4. Convert the binary code into pairs:
01001 01010 = 01 00 10 10 10
5. Convert each pair into its text equivalent:
01 00 10 10 10 = }~{{{
6. Add the frame bars. This can be done in one of two ways: Method 1
(Table 6) uses the frame bars as separate characters, and Method 2
(Table 7) “links” the frame bars to the first and last characters:
Table 6: Method 1
ZIP Code + digit Frame Bar
+
Digit Pairs
Binary
Code
Conversion
Text
Equivalent
Converted ZIP Code
(Text To Printer)
45 83 48 84 47 09
Frame Bar 1 \
45 01 00 10 10 10 }~{{{
83 10 01 00 01 10 {}~}{
48 01 00 11 00 10 }~`~{ SO\}~{{{{}~}{}~`~{{}~{}}~}~}`~}}~^SI
84 10 01 00 10 01 {}~{}
47 01 00 11 00 01 }~}~}
09 11 00 01 01 00 `~}}~
Frame Bar 1 ^
Note: SO = Shift Out (hex 0E), and SI = Shift In (hex 0F)