Printing Bar Codes
Bar Code Sequences
To print bar codes, the following sequences are used in bar code mode:
BAR CODE SEQUENCE | FUNCTION |
BEL | Sound the Bell. |
ESC ESC n | Change Emulation Mode |
ETX | ETX/ACK Software Handshake. |
FF | Form Feed. |
LF | Fractional Line Feed (to next line |
| boundary) |
^BNxccc...c^G | Horizontal Bar Code. |
^BN9xddddccc...c^G | Variable Width Horizontal Bar Code. |
^Htt | Bar Code Height. |
^Jttd | Relative Vertical Tab. |
^Ttttd | Absolute Horizontal Tab. |
^- | Bar Code Pass Terminator. |
These bar code sequences are described in detail in the following sections.
Measurements in Bar Code Mode
All measurements in bar code mode are specified in tenths of an inch and/or dots.
Bar codes are printed with a graphics resolution of 144 dots per inch both horizontally and vertically.
All references to tenths of an inch are in actuality 14/144's of an inch.
All references to dots are in actuality 1/144's of an inch. The range of dots that may be specified is 0 to 15. This range is represented using hexadecimal convention. The ASCII characters '0' to '9' represent 0 to 9 dots, respectively. The ASCII characters 'A' to 'F', and 'a' to 'f', represent 10 to 15 dots, respectively.
Page
