Epson FX-2190 Reference Manual page 139

You can print a hex dump using either single sheets or continuous
paper. See "Loading Continuous Paper" on page 17 or "Loading
Single Sheets" on page 49 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:
1. Make sure paper is loaded and the printer is turned off.
Caution:
c
Whenever you turn off the printer, wait at least five seconds
before turning it back on; otherwise you may damage the
printer.
2. To enter hex dump mode, turn on the printer while holding
down the LF/FF and Load/Eject buttons.
3. 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.
4. To turn off hex dump mode, press the Pause button, eject the
printed page(s), and then turn off the printer.
Problem Solver
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