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2. Trouble code list
MAIN
SUB
Title (Content)
CODE
CODE
U6
09
Lift motor trouble
20
Communication trouble
21
Transport motor trouble
22
24V trouble
23
Tray descending trouble
24
Tray lock trouble
51
LCC incompatibility trouble
3. Trouble code details
U6-09
LCC lift motor trouble
Trouble content
• The encoder input value is not changed in
0.2sec (1st time)/0.5sec (2nd time and later)
after rotation of the motor.
• The motor is rotated for 48sec or more.
Section
PCU
Case 1
Cause
Sensor trouble, LCC control PWB trouble, gear
breakage, lift motor trouble
Check
Use SIM4-2 and 4-3 to check the operation of the
and
sensor and the lift motor. Use SIM15 to cancel the
Remedy
trouble.
U6-20
LCC communication trouble
Trouble content
LCC communication error. Communication line test
error after turning ON the power or canceling the
exclusive simulation. LCC and machine model
codes discrepancy error
Section
PCU
Case 1
Cause
Connector and harness connection trouble or
disconnection, LCC control PWB trouble, control
(PCU) PWB trouble, malfunction due to electrical
noises
Check
Turn OFF/ON the power to cancel the trouble.
and
Check the connector and the harness of the
Remedy
communication line.
U6-21
LCC transport motor trouble
Trouble content
After passing 1 sec from turning ON the motor, the
lock state of the motor lock signal is detected
continuously for 1 sec.
Section
PCU
Case 1
Cause
Motor lock, motor RPM abnormality, an overcurrent
to the motor, LCC control PWB trouble
Check
Use SIM4-3 to check the operation of the transport
and
motor.
Remedy
U6-22
LCC 24V power abnormality
Trouble content
DC24V power is not supplied to LCC.
Section
PCU
Case 1
Cause
Connector and harness connection trouble or
disconnection, LCC control PWB trouble, power
unit trouble
Check
Check the connector and the harness of the power
and
line. Check that the power unit and the LCC control
Remedy
PWB is of 24V.
Section
LCC
When the tray is working
LCC
LCC communication
LCC
Paper feed
LCC
Power ON
LCC
When the tray is working
LCC
When the tray is working
LCC
Power ON
MX-LCX3N SELF DIAG MESSAGE AND TROUBLE CODE 10 – 2
Operation mode
Countermeasure (Remedy)
Check connection.
Turn OFF/ON the power.
Check connection.
Check connection.
Check connection.
Check connection.
Check connection.
U6-23
LCC tray descending trouble
(reverse winding detection)
Trouble content
Reverse winding of the LCC tray wire is detected.
Section
PCU
Case 1
Cause
Reverse winding of the wire
Check
Check the wire.
and
Remedy
Case 2
Cause
Connector and harness connection trouble
Check
Check connection of the connector and the
and
harness.
Remedy
Case 3
Cause
Reverse winding detection SW-ON, reverse
winding detection SW trouble, LCC control PWB
trouble
Check
Replace the reverse winding SW and the LCC
and
control PWB.
Remedy
U6-24
LCC tray lock detection trouble
Trouble content
Malfunction of the LCC tray lock mechanism is
detected.
Section
PCU
Case 1
Cause
Tray lock mechanism trouble
Check
Check the tray lock mechanism.
and
Remedy
Case 2
Cause
Connector and harness connection trouble
Check
Check connection of the connector and the
and
harness.
Remedy
Case 3
Cause
Tray lock detection sensor trouble, LCC control
PWB trouble
Check
Replace the tray lock detection sensor and the
and
LCC control PWB.
Remedy
U6-51
LCC incompatibility trouble
Trouble content
Detection of incompatible LCC connection.
Section
PCU
Case 1
Cause
Connection of incompatible LCC, is detected.
Check
Install compatible LCC.
and
Remedy
Note
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