Zebra Technologies LP 2844 - Manual (Page 47)

Resetting the Factory Default Values
Sometimes, resetting the printer to the factory defaults solves some of the
problems. For troublehooting and to overwrite all stored parameters, send
the
^default command.
Communications Diagnostics
If there is a problem transferring data between the computer and printer, try
putting the printer in the communications diagnostics mode. The printer
will print the ASCII characters and their respective hexadecimal values (a
sample is shown below) for any data received from the host computer. To
find out how, refer to the power off mode procedure in “Manual
Calibration” on page 38.
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