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HEX DUMP MODE
Hex Dump mode provides a way to print, in a readable form, all the data received by the printer. This tool is
useful to programmers for diagnosing problems with control codes and escape sequences sent to the printer.
Hex Dump mode may also be used to detect what commands are being sent by a particular software
application to help determine which emulation mode is needed for that application.
To select Hex Dump mode, enter SETUP and use the MENU button to select the “TEST MENU”. Next
use the ITEM buttons to select “Test Mode” and then use the VALUE buttons to select “Hex Dump”. Now
press ONLINE to reset the printer. The printer will now remain in Hex Dump mode until “Test Mode” is set
back to “Off” or some other value.
A sample hex dump is shown below. Note that each line shows sixteen characters, first in hexadecimal
format, then in printable ASCII format. All unprintable ASCII characters (printable characters are from 21
hex to 7E hex inclusive) are represented by a period.
54686973 20697320 61207361 6D706C65 This.is.a.sample
20686578 2064756D 7020746F 20696C6C .hex.dump.to.ill
75737472 61746520 68657820 64756D70 ustrate.hex.dump
666F726D 61740D0A format..
When the printer is executing in Hex Dump mode, control characters and escape sequences sent to the
printer are not recognized or processed. The hexadecimal representation of the control characters and
escape sequences will appear in the hex dump, but no other special processing will occur.
In particular, note that ETX/ACK handshake will not operate properly in Hex Dump mode. When an ETX
is received by the printer, its hexadecimal representation will be printed in the hex dump, but no ACK will be
sent to the host computer. When using the printer in Hex Dump mode, it is recommended that the printer be
configured for parallel I/O, serial I/O with hardware handshake, or serial I/O with XON/XOFF handshake.