3-6 Troubleshooting Rev. B

3.7 Hexadecimal Dump Mode
This feature allows experienced users to see exactly what data is coming to the printer. This can
be useful in finding software problems. When you turn on the hex dump function, the printer
prints all commands and other data in hexadecimal format, along with a guide section to help
you find specific commands.
To use the hex dump feature, follow these steps:
1. After you make sure the printer is off, open the peeler cover.
2. While you hold down the FEED button, turn on the printer.
3. Close the cover.
4. Run any software program that sends data to the printer. The printer prints “Hexadecimal
Dump” and then all the codes it receives in a two-column format. The first column contains
the hexadecimal codes and the second column gives the ASCII characters that correspond to
the codes. Part of a hexadecimal dump is shown below:
Hexadecimal Dump
To terminate hexadecimal dump,press
FEED button three times.
1B 21 00 1B 26 02 40 40 40 40 . ! . . & . @ @ @ @
1B 25 01 1B 63 34 00 1B 00 1B . % . . c 4 . . . .
41 42 43 44 45 46 47 48 41 42 A B C D E F G H A B
A period (.) is printed for each code that has no ASCII equivalent.
In hex dump mode all commands except real time ESC/POS commands are disabled.
5. Pressing the POWER button turns off the hex dump mode and returns the printer to the
normal mode. Or, press the FEED button three times to terminate the hexadecimal dump.
Note:
The hexadecimal dump mode can’t be used with OPOS or the APD.