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3.4 Troubleshooting
* “SERVICE” or “SERVICE CALL” : Do not attempt to repair problems without requiring
SERVICE CALL. It can be dangerous to your health and or cause additional damage to the
product. Entries requiring SERVICE CALL are hardware failures and require repair by quali ed
service personnel.
Error Contents Causes/Points to check Solutions
Can’t turn the printer ON Is the power switch turned ON? Turn the power switch ON
Is the connector on the power
adapter properly connected?
Connect the connector rmly
Does the printer reset when you
turn the power switch ON?
If it does, something is wrong with the
operation panel. Call for SERVICE*
Does the LED on the adapter light
up when connected to the wall?
If it doesn’t, check the connection of the
power supply cord. If the connection
is OK, something is wrong with the
adapter. Call for SERVICE*
Other Something may be wrong with the power
switch parts or with the main board. Call
for SERVICE*
The ON LINE indicator
doesn’t light up
Is the ERROR indicator ON?
If it is, see “the ERROR indicator is ON”
Press the ON LINE button
If the ON LINE indicator turns on, it’s normal
The ERROR indicator is
ON
Check if the printer is out of paper If paper is out, replace with a new roll
The cover doesn’t open even if
you slide the cover open knob
The Automatic Paper Cutter may be
locked. 3.3, “Printer Jam”
The printer cover doesn’t close
completely
Open the cover by sliding the cover open
knob, and close it again by pushing at
center of the cover.
The ERROR indicator
doesn’t light up while
paper is exhausted (The
printer cover is close)
The ON LINE indicator lights up
by using the ON LINE button
Something is wrong with the paper sensor
of the main board inside the printer
Other Something is wrong with the operating
panel
Can’t print the self test The ONLINE indicator is not ON
See “the ON LINE indicator doesn’t light up”
Printing causes the paper to feed Something is wrong internally or with
the printer head. Call for SERVICE*
Printing cannot be done
by the commands from the
HOST or printing garbled
Check print capability by running
the self-test
If printing fails, call for SERVICE*
Is the connector of interface rmly
connected with screws?
Set the connector rmly and tighten the
screws
Check the setting of DIP switch Refer Appendix and set the switches
correctly, then power cycle the printer
The drawer kick doesn’t
work
Is the drawer kick connected
properly?
Re-plug in the cable. You should hear or
feel a click if the proper connection is made.
Is Y-cable connected in reverse
order?
Check the Y-cable and verify it is
connected in the correct order
Other Something may be wrong with the
main board inside the printer, and needs
SERVICE CALL*
The ERROR indicator and
ON LINE indicator ash
on and off alternately
Check the setting of DIP switch Refer to Appendix. Turn the printer off,
make any necessary changes, then turn
the printer on
11


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