Hexadecimal Dump - Epson TM-U200D series Operator's Manual

7. Lift up the print head cover.
8. Remove all the jammed paper.
Note:
Do not pull the jammed paper in the opposite direction of paper
feeding.
9. Replace the print head cover and secure it with the screw.
10. Replace the ribbon cassette and paper roll; then close the
printer cover.

Hexadecimal Dump

This feature allows experienced users to see exactly what data is
coming to the printer. This can be useful in finding software
problems. When you turn on the hex dump function, the printer
prints all commands and other data in hexadecimal format along
with a guide section to help you find specific commands.
(Single-color Type)
(Two-color Type)
Troubleshooting 3-5