Data Dump Mode - Epson SQ-2550 User Manual

Data Dump Mode

Your printer has a special feature to make it easy for
experienced users to find the cause of communication problems
between the printer and application programs. In data dump
mode, an exact printout of the codes reaching the printer is
produced.
1. To enter the data dump mode, hold down the
LINE FEED
and
the printer.
3-38 Using the Printer
buttons at the same time while you turn on
FORM FEED LINE FEED
FORM FEED