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Troubleshooting

Printing Hex Dump

If you are an experienced user or a programmer, you can print a hexadecimal dump to isolate communication problems between the printer and your software program. In hex dump mode, the printer prints all data it receives from the computer as hexadecimal values.

You can print a hex dump using either single sheets or continuous paper. See Loading Continuous Paper or Loading Single Sheets for instructions on how to load paper.

Note:

The Hex Dump feature is designed for use with DOS-based PC.

Use paper that is at least 210 mm (8.3 inches) wide, such as A4 or letter size paper.

Follow these steps to print a hex dump:

Make sure paper is loaded and the printer is turned off.

Caution:

Whenever you turn off the printer, wait at least five seconds before turning it back on; otherwise you may damage the printer.

To enter hex dump mode, turn on the printer while holding down the LF/FF and Load/Eject buttons.

Open a software program and send a print job to the printer. Your printer prints all the codes it receives in hexadecimal format.

By comparing the characters printed in the right column with the printout of the hexadecimal codes, you can check the codes the printer is receiving. If characters are printable, they appear in the right column as ASCII characters. Nonprintable codes, such as control codes, are represented by dots.

To turn off hex dump mode, press the Pause button, eject the printed page(s), and then turn off the printer.

Caution:

Do not turn off the printer while it is printing the hex dump. Always press the Pause button to stop printing and the Load/Eject button to eject the printed page before you turn off the printer.

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