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Hex Dump Mode

Hex Dump provides a way to print, in a readable form, all the data received by the printer. This tool is useful to

programmers for debugging programs when sending control codes and escape sequences 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.

When the printer is operating 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.

To select Hex Dump mode, please refer to your printer’s Operator’s Manual.

A sample hex dump for the MLP3040 is shown below. Note that each line shows sixteen characters, first in

hexadecimal format and then in printable ASCII format. Certain, common nonprinting characters are

represented by special characters such as

, and

F. The Escape character is represented by a diamond shape

(

♦) to help identify the beginning of command strings. All other unprintable ASCII characters (0x00-0x1F) are

represented by a period.

54 68 69 73 20 69 73 20 61 20 73 61 6D 70 6C 65 This.is.a.sample

20 68 65 78 20 64 75 6D 70 20 74 6F 20 69 6C 6C .hex.dump.to.ill

75 73 74 72 61 74 65 20 68 65 78 20 64 75 6D 70 ustrate.hex.dump

66 6F 72 6D 61 74 0D 0A 0C 00 00 00 00 1B 1B 01 format

F....♦♦.

The format of the Hex Dump output for the MLP3030 models will vary slightly due to constraints of printing

on the smaller width paper.

Note: 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 using the RS-232C Serial Interface, it is

recommended that the printer be configured for RTS/CTS handshake or XON/XOFF handshake.

Note: The Hex Dump feature is only available in units with firmware version 2.0 or later.

1 2 ... 46 47 48 49 50 51 52 53 54 55 56 ... 60 61

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