Chapter 5 The Self Test - Epson U300PC - TM B/W Dot-matrix Printer User Manual

Chapter 5 The Self Test

■ The purpose of the self test
The self test checks whether the printer has any problems. If the printer does not
function properly, contact your dealer. The self test checks the following:
Control circuit functions
Printer mechanism
Print quality
Running the self test
➀ Make sure the ribbon cassette and paper roll have been installed properly.
Make sure the printer cover and the take-up device cover or the roll paper cover
are closed properly.
➁ Turn on the power while holding down the FEED button. The self test begins.
➂ First the self test prints the current printer status, which provides the following
information:
Control ROM version
➃ After printing the current
printer status, it prints
"Self-test printing. Please
press FEED switch". The
PAPER LED flashes and
the printer enters the test
printing standby state.
Press the FEED button
to restart test printing.
➄ After the printer com-
pletes a certain number
of lines, it prints "
completed
stops printing automati-
cally.
The printer goes off-line
during and after self-test
printing. Turn the power
off and on again to put
the printer on-line before
transmitting data from
the host computer.
Control ROM version
DIP switch settings
Presence or absence of a validation
detector
DIP switch settings
", and
TM-U300C/U300D
26
Self-test Printing Sample
TM-U300PC/U300PD