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3.8 Dump Mode
After the self-test, the printer enters the dump mode. In this mode, any
characters sent from the host computer will be printed in two columns, as shown.
The characters received will be shown in the first column, and their
corresponding hexadecimal values, in the second. This is often helpful to users
for the verification of programming commands or debugging of printer programs.
Reset the printer by turning the POWER switch off and on.
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