Troubleshooting - Casio UP-370 Service Manual

4444

TROUBLESHOOTING

Error Contents
Can't turn the printer ON.
The ON LINE indicator
doesn't light up.
The ERROR Indicator is ON.
The ERROR indicator
doesn't light up while paper is
exhausted.
(The printer cover is close.)
The ERROR indicator doesn't
light up while the printer cover
is opened.
Printing cannot be done
by the commands from the
HOST or printing garbled.
The drawer kick doesn't work. Is the drawer kick connected
The ERROR indicator and ON
LINE indicator flash on and off
alternately.
Causes / Points to Check
Is the power switch turned
ON?
Is the connector on the power
adapter properly connected?
Does the LED on the adapter
light up when connected to the
wall?
Is the ERROR Indicator ON?
Press the ON LINE button
Check if the printer is out of
paper.
The cover doesn't open even if
you slide the cover open knob.
The printer cover doesn't close
completely.
The ON LINE indicator lights
up by using the ON LINE
button.
The ON LINE indicator is not
ON
Check print capability by
running the self test.
Is the connector of interface
firmly connected with screws?
Check the setting of DIP
switch.
properly?
Is Y-cable connected in
reverse order?
Check the setting of DIP
Switch.
– 10 –
Solutions
Turn the power switch ON.
Connect the connector firmly.
If the LED does not light up, check to see if the
power cable is connected properly. If the power
cable is connected properly, replace the AC
adaptor or the main PCB.
If it is, see "the ERROR Indicator is ON".
If the ON LINE indicator turns on, it's normal.
If paper is out, replace with a new roll.
The Automatic Paper Cutter may be locked,
See "4.3 PAPER JAM".
Open the cover by sliding the cover open knob,
and close it again by pushing at center of the
cover.
Check the sensor and the main PCB, and
replace them if necessary.
Check the sensor and the main PCB, and
replace them if necessary.
If the printing cannot be performed, check the
printer head and/or the main PCB and replace
them if necessary.
Set the connector firmly and tighten the screws.
Refer to "5. THE DIP SWITCHES". Set the
switches correctly, then power cycle the printer.
Re-plug in the cable. You should hear or feel a
click if the proper connection is made.
Check the Y-cable and verify it is connected in
the correct order.
Refer to "5. THE DIP SWITCHES". Turn the
printer off, make any necessary changes, then
turn the printer on.