IBM 4247 A00, User Manual

Page: 195 / 322

Bar Code Commands
To print bar codes with the Native 4247 commands, use the SELECT and PRINT
commands. Both commands are required.
Command Purpose
SELECT
v
Select the type of bar code to be printed.
v
Determine the bar code height.
v
Determine whether or not to print human readable information.
PRINT
v
Causes the bar code to print on the paper
v
Determines the position on the line at which the bar code will print.
Note: The PRINT command will permit multiple bar codes to be printed on a single line
using a single PRINT command. You also may issue multiple PRINT commands for a single
SELECT command, if the format and bar code topology do not change.
The following pages show the general command structure for all bar code types.
See “Valid Bar Code Data” on page 177 for specific bar code types, valid data field
contents, and control information.
Notes:
1. Highlighted fields require input as defined below each table.
2. Decimal values shown are for use in application programs.
SELECT Command Format
ASCII DC4 DC4 ESC ! HT BT HR EM
HEX 14 14 1B 21 HT BT HR 19
DECIMAL 20 20 27 33 HT BT HR 25
Appendix C. Native 4247 Commands
173