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Confidential
Table 5-1 Troubleshooting
Phenomenon
PAPER OUT LED
Self test standby
is flashing.
state
ERROR LED is
Print head high
flashing.
temperature
(For the LED
error
flashing
patterns, see
"Error LED" on
page 3-12.)
ERROR LED is
Platen open error
flashing
(For the LED
Platen open is
flashing
not detected.
patterns, see
"Error LED" on
page 3-12.)
Autocutter error
Black mark
detection error
Rev. A
Condition
Cause
Self test is in the
standby state
The head
temperature has
reached at 70°C or
more.
The platen is open.
The platen open
detector is
damaged.
(1)Paper chips or
foreign matter is
inside the
autocutter and
has locked it.
(2)The internal
function of the
autocutter is
damaged.
(1)No black mark is
printed.
(2)The wrong side
of the paper is
used.
(3)The black mark
detector is
damaged.
(4)Paper chips or
foreign matter is
jammed around
the black mark
detector.
EU-T532/T542 Technical Manual
Level
Where/how to check
A
Check if the self test
printing is completed.
−
A
A
Check if the platen is
not open.
B
Check the platen open
detector function with
an oscilloscope.
B
Check whether paper
chips or foreign matter
is jammed inside the
autocutter.
B
Check the power
supply voltage.
A
Check if the paper is
printed with a black
mark.
A
Check if the correct
side of the paper is
used.
B
Check the black mark
detector function with
an oscilloscope.
A
Check whether paper
chips or foreign matter
is jammed around the
black mark detector.
Procedure
Press paper feeding
SW on the control
circuit board to
complete the self
test when not
completed.
−
(When the head is
cooled down to
60°C or less, the unit
will recover
automatically.)
Close the platen
when it is open.
Replace the
detector if it is
damaged.
After turning off the
power, remove
paper chips or
foreign matter; then
turn on the power.
Replace the
autocutter if the
power supply
voltage is normal.
Replace with the
black mark printed
paper.
Replace with the
paper with the
black mark on the
correct side.
Replace the
detector if it is
damaged.
Remove the paper
chips or foreign
matter if there is
any.
Repair 5-3
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