Appendix C: Bar codes
C-19
Valid data is within the range 0 (30H) to 9 (39H).
If the DATA is outside this range, the command is invalid.
3. Printing quality is equivalent to 360 dpi.
4. Printing starts when the printer has received the entire com-
mand.
5. The checksum can be added by the printer by sending the char-
acter “@”.
6. If the bar code data extends beyond the right margin, the com-
mand will be ignored. In this case, a »CR/LF« (Carriage Return,
Line Feed) will be performed.
7. After printing the bar code, the print head is positioned at the
end of the first printed line.
8. Height of the upper print process is 21/180 inch, height of the
lower print process is 7/180 inch.
9. A high bar is automatically added as start and stop character.
10. Calculating the checksum
All values are added. The deficit to the next digit that can be
divided by 10 is the checksum.
Example: bar code data 123456789@
a: 1+2+3+4+5+6+7+8+9=45
b: next digit which can be divided by 10 is 50
c: 50-45=5
Checksum is 5
Example of a 9-digit Zip Code with checksum
1B 10 43 0A 31 32 33 34 35 36 37 38 Selection and
39 40 Printing of Zip Code
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