Brother RJ-2035B User Manual page 50

Dump mode

The printer will enter dump mode after printing the printer configuration. This
mode allows users to verify and debug the printer's programs. The characters in
the left column are received from the printer's system and those in the right
column are their hexadecimal representation.
ASCII data
Note
 Dump mode requires 2" (50.8 mm) wide paper.
 To resume printing, turn the printer off and then on again.
46
Hexadecimal representation
of the ASCII data