Epson 1170 - Manual (Page 61)

Control Panel
Other control-panel features
The control panel also gives you access to two special functions.
Self test:
Data dump:
Hold down the LF/FF (for LQ mode) or LOAD/EJECT
(for Draft mode) button while you turn on the
printer to perform the self test. The self test lets you
check that your printer is operating properly and
gives you a printout of the current DIP-switch
settings. See the section on testing the printer in
Chapter
1
for more information.
Hold down both the LF/FF button and LOAD/EJECT
button while you turn on the printer to enter data
dump mode. The data dump mode allows advanced
users to find the cause of communication problems
between the printer and the computer. The data
dump mode is explained at the end of this chapter.
Using the Printer 3-5