Sharp MX-M850 (serv.man38) Service Manual ▷ View online
MX-M1100 SELF DIAG AND TROUBLE CODE 8 – 29
U2-30
Production number data discrepancy
(ICU
(ICU
↔ PCU)
U2-50
HD section individual data check sum
error (MFP)
error (MFP)
U2-80
EEPROM read / write error
(SCU detection)
(SCU detection)
U2-81
EEPROM check sum error
(SCU detection)
(SCU detection)
U2-90
EEPROM read / write error
(PCU detection)
(PCU detection)
U2-91
EEPROM check sum error
(PCU detection)
(PCU detection)
U5-00
SPF communication trouble
U5-11
DSPF random pick motor trouble
(DSPF detection)
(DSPF detection)
U5-16
SPF fan motor trouble
Detail
The production number saved in the PCU differs from
that saved in the ICU
that saved in the ICU
Section
ICU
Cause
When replacing the PCU / ICU PWB, the EEPROM is
not changed.
not changed.
Check &
Remedy
Remedy
Check that the EEPROM is properly set.
When replacing the PWB, check that the EEPROM
before replacement is inserted to the PWB after
replacement.
When replacing the PWB, check that the EEPROM
before replacement is inserted to the PWB after
replacement.
Detail
W-ICU PWB HD individual data check sum error.
(One touch, group, program, etc.)
(One touch, group, program, etc.)
Section
ICU
Cause
Read / write trouble from / to HD.
Control circuit malfunction due to line noise.
W-ICU PWB HD access circuit trouble.
Control circuit malfunction due to line noise.
W-ICU PWB HD access circuit trouble.
Check &
Remedy
Remedy
Turn OFF / ON the power to initialize the data related to
the content of check sum error.
Since the registered content is deleted, register the
deleted content again.
Use Sim. 16 to cancel the U2 trouble.
Replace the HD.
Replace the MFPC, W-ICU PWB.
the content of check sum error.
Since the registered content is deleted, register the
deleted content again.
Use Sim. 16 to cancel the U2 trouble.
Replace the HD.
Replace the MFPC, W-ICU PWB.
Detail
EEPROM version error. EEPROM write error
Section
SCU
Cause
EEPROM trouble.
Installation of non-initialized EEPROM.
SCU PWB EEPROM access circuit trouble.
Installation of non-initialized EEPROM.
SCU PWB EEPROM access circuit trouble.
Check &
Remedy
Remedy
Check that the EEPROM is properly set.
To keep the counter data and the adjustment values,
use the simulation to save the counter data and the
adjustment values. (When there is a printer option,
execute Sim.22-1 to save the counter data and the
adjustment values.) Replace the SCU PWB.
Use Sim. 16 to cancel the trouble.
To keep the counter data and the adjustment values,
use the simulation to save the counter data and the
adjustment values. (When there is a printer option,
execute Sim.22-1 to save the counter data and the
adjustment values.) Replace the SCU PWB.
Use Sim. 16 to cancel the trouble.
Detail
EEPROM (SCU) check sum error
Section
SCU
Cause
EEPROM trouble.
Control circuit malfunction due to line noise.
SCU PWB EEPROM access circuit trouble.
Control circuit malfunction due to line noise.
SCU PWB EEPROM access circuit trouble.
Check &
Remedy
Remedy
Check that the EEPROM is properly set.
To keep the counter data and the adjustment values,
use the simulation to save the counter data and the
adjustment values. (When there is a printer option,
execute Sim. 22-1 to save the counter data and the
adjustment values.)
Replace the SCN PWB.
Use Sim. 16 to cancel the trouble.
To keep the counter data and the adjustment values,
use the simulation to save the counter data and the
adjustment values. (When there is a printer option,
execute Sim. 22-1 to save the counter data and the
adjustment values.)
Replace the SCN PWB.
Use Sim. 16 to cancel the trouble.
Detail
EEPROM version error. EEPROM write error
Section
PCU
Cause
EEPROM trouble.
Installation of non-initialized EEPROM.
PCU PWB EEPROM access circuit trouble.
Installation of non-initialized EEPROM.
PCU PWB EEPROM access circuit trouble.
Check &
Remedy
Remedy
Check that the EEPROM is properly set.
To keep the counter data and the adjustment values,
use the simulation to save the counter data and the
adjustment values. (When there is a printer option,
execute Sim. 22-1 to save the counter data and the
adjustment values.) Replace the PCU PWB.
Use Sim. 16 to cancel the trouble.
To keep the counter data and the adjustment values,
use the simulation to save the counter data and the
adjustment values. (When there is a printer option,
execute Sim. 22-1 to save the counter data and the
adjustment values.) Replace the PCU PWB.
Use Sim. 16 to cancel the trouble.
Detail
EEPROM (PCU) check sum error
Section
PCU
Cause
EEPROM trouble. Control circuit malfunction due to
noises. PCU PWB EEPROM access circuit trouble.
noises. PCU PWB EEPROM access circuit trouble.
Check &
Remedy
Remedy
Check that the EEPROM is properly set.
To keep the counter data and the adjustment values,
use the simulation to save the counter data and the
adjustment values. (When there is a printer option,
execute Sim. 22-1 to save the counter data and the
adjustment values.) Replace the PCU PWB.
Use Sim. 16 to cancel the trouble.
To keep the counter data and the adjustment values,
use the simulation to save the counter data and the
adjustment values. (When there is a printer option,
execute Sim. 22-1 to save the counter data and the
adjustment values.) Replace the PCU PWB.
Use Sim. 16 to cancel the trouble.
Detail
SCU-DSPF communication error.
Communication line test error when turning on the
power or after canceling the exclusive simulation.
Communication line test error when turning on the
power or after canceling the exclusive simulation.
Section
SCU
Cause
Connector and harness contact trouble or disconnection.
Control PWB (SCU) trouble or DSPF PWB trouble.
Malfunction due to noises.
Control PWB (SCU) trouble or DSPF PWB trouble.
Malfunction due to noises.
Check &
Remedy
Remedy
Turn OFF / ON the power to cancel.
Check the connector and the harness of the
communication line.
Replace the SCU PWB or replace the DSPF PWB.
Check the connector and the harness of the
communication line.
Replace the SCU PWB or replace the DSPF PWB.
Detail
Random pick motor trouble (SPURUD is not changed
within the specified time) is detected
within the specified time) is detected
Section
SCU
Cause
Random pick unit trouble
Check &
Remedy
Remedy
Check the STLD and the harness and the connector.
Check the random pick-up motor and the related circuits
(DSPFcnt, DSPF-Driver).
Check the random pick-up motor and the related circuits
(DSPFcnt, DSPF-Driver).
Detail
The lock signal is detected during rotation of the fan /
The non-lock state is detected when the motor is not
rotated in booting
The non-lock state is detected when the motor is not
rotated in booting
Section
SCU
Cause
Fan motor trouble.
Trouble in the harness related to the fan.
Circuit trouble.
Trouble in the harness related to the fan.
Circuit trouble.
Check &
Remedy
Remedy
Use Sim. 2-3 to check the operation.
Check the fan motor related circuits (DSPFcnt, DSPF-
Driver) and their harness and connector.
Check the fan motor related circuits (DSPFcnt, DSPF-
Driver) and their harness and connector.
MX-M1100 SELF DIAG AND TROUBLE CODE 8 – 30
U5-30
SPF tray lift-up trouble
U5-31
SPF tray lift-down trouble
U6-09
Side LCC lift motor trouble
U6-20
LCC communication trouble
U6-21
LCC transport motor trouble
U6-22
LCC 24V power abnormality
U6-23
A3LCC tray lock detection trouble
(Reverse winding)
(Reverse winding)
U6-24
A3LCC tray lock detection trouble
U6-28
LCT1 paper feed position abnormality
U6-29
LCT1 lift-up trouble
Detail
The lift-up trouble (STUD is not turned ON within the
specified time) is detected 5 times continuously.
When lifting again, a trouble occurs from the first time.
specified time) is detected 5 times continuously.
When lifting again, a trouble occurs from the first time.
Section
SCU
Cause
STUD / STLD trouble
Check &
Remedy
Remedy
Check the STUD / STLD and their harness and the
connector.
Check the lift-up related circuit (DSPFcnt, DSPF-Driver).
Check the lift-up unit.
connector.
Check the lift-up related circuit (DSPFcnt, DSPF-Driver).
Check the lift-up unit.
Detail
The lift-down trouble is detected
(STLD is not turned OFF within the specified time.)
(STLD is not turned OFF within the specified time.)
Section
SCU
Cause
STUD / STLD trouble
Check &
Remedy
Remedy
Check the STUD / STLD and the harness and the
connector.
Check the lift-up related circuit (DSPFcnt, DSPF-Driver).
Check the lift-up unit.
connector.
Check the lift-up related circuit (DSPFcnt, DSPF-Driver).
Check the lift-up unit.
Detail
• The encoder input value is not changed in 0.13sec
(first time) / 0.5sec (2nd or later) after rotation of the
motor
motor
• The motor is rotated for 18sec or more
• The encoder is changed after a certain time of
• The encoder is changed after a certain time of
stopping the motor (2 sec, 10 count or more)
Section
PCU
Cause
Sensor trouble.
LCC control PWB trouble.
Gear breakage.
Lift motor trouble.
LCC control PWB trouble.
Gear breakage.
Lift motor trouble.
Check &
Remedy
Remedy
Use Sim. 4-2 and 4-3 to check the operations of the
sensor and the lift motor.
Use Sim. 15 to cancel the trouble.
sensor and the lift motor.
Use Sim. 15 to cancel the trouble.
Detail
Communication error with the LCC.
Communication line test error after turning on the power
or canceling the exclusive simulation.
The model code discrepancy with the machine model.
Communication line test error after turning on the power
or canceling the exclusive simulation.
The model code discrepancy with the machine model.
Section
PCU
Cause
Connection trouble or disconnection of the connector
and the harness.
LCC control PWB trouble.
Control PWB (PCU) trouble.
Malfunction due to noises.
and the harness.
LCC control PWB trouble.
Control PWB (PCU) trouble.
Malfunction due to noises.
Check &
Remedy
Remedy
Turn OFF / ON the power to cancel the trouble.
Check the connector and the harness in the
communication line.
Check the connector and the harness in the
communication line.
Detail
• The encoder input value is not changed in 0.06sec
after turning on the motor.
• The encoder input is changed in a certain time after
turning off the motor. (The count reaches 100 when
counting for 0.1sec after 5 sec.)
counting for 0.1sec after 5 sec.)
Section
PCU
Cause
Motor lock, motor rpm abnormality, an overcurrent to
the motor.
LCC control PWB trouble.
the motor.
LCC control PWB trouble.
Check &
Remedy
Remedy
Use Sim. 4-3 to check the operation of the transport
motor.
motor.
Detail
DC 24V is not supplied to the LCC
Section
PCU
Cause
Connection trouble or disconnection of the connector
and the harness.
LCC control PWB trouble.
Power source unit trouble.
and the harness.
LCC control PWB trouble.
Power source unit trouble.
Check &
Remedy
Remedy
Check the connector and the harness in the power
source line.
Check that the power unit and the LCC control PWB is
of 24V.
source line.
Check that the power unit and the LCC control PWB is
of 24V.
Detail
The LCC tray wire is wound in reverse
Section
PCU
Cause
Reverse winding SW-ON.
The wire is wound in reverse. Reverse winding
detection SW trouble.
Connection trouble of the connector and the harness.
LCC control PWB trouble.
The wire is wound in reverse. Reverse winding
detection SW trouble.
Connection trouble of the connector and the harness.
LCC control PWB trouble.
Check &
Remedy
Remedy
Check the wire. Replace the reverse winding SW and
the LCC control PWB.
Check connection of the connector and the harness.
the LCC control PWB.
Check connection of the connector and the harness.
Detail
The LCC tray lock function does not operate normally
Section
PCU
Cause
Tray lock mechanism trouble.
Tray lock sensor trouble.
Connection trouble of the connector and the harness.
LCC control PWB trouble.
Tray lock sensor trouble.
Connection trouble of the connector and the harness.
LCC control PWB trouble.
Check &
Remedy
Remedy
Check the tray lock mechanism.
Replace the tray lock sensor and the LCC control PWB.
Check connection of the connector and the harness.
Replace the tray lock sensor and the LCC control PWB.
Check connection of the connector and the harness.
Detail
When the lift-up operation is started, the upper limit
sensor is turned OFF before the pick-up SOL is turned
ON. (Normally the upper limit sensor is turned OFF only
after turning ON the pick-up SOL.)
sensor is turned OFF before the pick-up SOL is turned
ON. (Normally the upper limit sensor is turned OFF only
after turning ON the pick-up SOL.)
Section
PCU
Cause
Sensor abnormality, connector and harness connection
trouble, PWB trouble.
The pick-up roller is kept in the lower position
mechanically.
trouble, PWB trouble.
The pick-up roller is kept in the lower position
mechanically.
Check &
Remedy
Remedy
Use Sim. 4-2 and Sim. 4-3 to check the operation of the
upper limit sensor and the lift-up operation, and check
the wiring.
upper limit sensor and the lift-up operation, and check
the wiring.
Detail
When lifting up, the upper limit is not detected within the
specified time (A4 LCC: 10 sec, A3 LCC: 8 sec)
specified time (A4 LCC: 10 sec, A3 LCC: 8 sec)
Section
PCU
Cause
Upper limit sensor abnormality, tray lift-up motor lock,
connector/harness connection trouble, PWB trouble
connector/harness connection trouble, PWB trouble
Check &
Remedy
Remedy
Use Sim. 4-2 and Sim. 4-3 to check the operation of the
upper limit sensor and the lift-up operation, and check
the wiring.
After making the countermeasure for the trouble
section, use Sim. 15 to cancel the trouble.
upper limit sensor and the lift-up operation, and check
the wiring.
After making the countermeasure for the trouble
section, use Sim. 15 to cancel the trouble.
MX-M1100 SELF DIAG AND TROUBLE CODE 8 – 31
U6-33
LCT2 lift-down trouble
U6-38
LCT2 paper feed position abnormality
U6-39
LCT2 lift-up trouble
U6-43
LCT3 lift-down trouble
U6-48
LCT3 paper feed position abnormality
U6-49
LCT3 lift-up trouble
U6-51
LCC incompatible trouble
U7-50
Serial vendor communication trouble
U7-51
Serial vendor operation trouble
U6-63
Manual feed tray lift-down trouble
Detail
The lower limit position (full state) of the LCT2 tray is
not detected within the specified time (A4: 10sec, A3:
8sec) from starting lowering.
not detected within the specified time (A4: 10sec, A3:
8sec) from starting lowering.
Section
PCU
Cause
Remaining quantity sensor abnormality,
LCT2 tray lift-up motor lock, connector/harness
connection trouble, PWB trouble.
LCT2 tray lift-up motor lock, connector/harness
connection trouble, PWB trouble.
Check &
Remedy
Remedy
Use Sim. 4-2 and Sim. 4-3 to check the operation of the
remaining quantity sensor and the LCT2 tray lift-up
motor, and check the wiring.
remaining quantity sensor and the LCT2 tray lift-up
motor, and check the wiring.
Detail
When the lift-up operation is started, the upper limit
sensor is turned OFF before the pick-up SOL is turned
ON. (Normally the upper limit sensor is turned OFF only
after turning ON the pick-up SOL.)
sensor is turned OFF before the pick-up SOL is turned
ON. (Normally the upper limit sensor is turned OFF only
after turning ON the pick-up SOL.)
Section
PCU
Cause
Sensor abnormality, connector and harness connection
trouble, PWB trouble.
The pick-up roller is kept in the lower position
mechanically.
trouble, PWB trouble.
The pick-up roller is kept in the lower position
mechanically.
Check &
Remedy
Remedy
Use Sim. 4-2 and Sim. 4-3 to check the operation of the
upper limit sensor and the lift-up operation, and check
the wiring.
upper limit sensor and the lift-up operation, and check
the wiring.
Detail
When lifting up, the upper limit is not detected within the
specified time (A4 LCC: 10 sec, A3 LCC: 8 sec)
specified time (A4 LCC: 10 sec, A3 LCC: 8 sec)
Section
PCU
Cause
Upper limit sensor abnormality, tray lift-up motor lock,
connector/harness connection trouble, PWB trouble.
connector/harness connection trouble, PWB trouble.
Check &
Remedy
Remedy
Use Sim. 4-2 and Sim. 4-3 to check the operation of the
upper limit sensor and the lift-up operation, and check
the wiring.
After making the countermeasure for the trouble
section, use Sim. 15 to cancel the trouble.
upper limit sensor and the lift-up operation, and check
the wiring.
After making the countermeasure for the trouble
section, use Sim. 15 to cancel the trouble.
Detail
The lower limit position (full state) of the LCT3 tray is
not detected within the specified time (A4: 10sec, A3:
8sec) from starting lowering
not detected within the specified time (A4: 10sec, A3:
8sec) from starting lowering
Section
PCU
Cause
Remaining quantity sensor abnormality, LCT3 tray lift-
up motor lock, connector / harness connection trouble,
PWB trouble.
up motor lock, connector / harness connection trouble,
PWB trouble.
Check &
Remedy
Remedy
Use Sim. 4-2 and Sim. 4-3 to check the operation of the
remaining quantity sensor and the LCT3 tray lift-up
motor, and check the wiring.
remaining quantity sensor and the LCT3 tray lift-up
motor, and check the wiring.
Detail
When the lift-up operation is started, the upper limit
sensor is turned OFF before the pick-up SOL is turned
ON. (Normally the upper limit sensor is turned OFF only
after turning ON the pick-up SOL.)
sensor is turned OFF before the pick-up SOL is turned
ON. (Normally the upper limit sensor is turned OFF only
after turning ON the pick-up SOL.)
Section
PCU
Cause
Sensor abnormality, connector and harness connection
trouble, PWB trouble.
The pick-up roller is kept in the lower position
mechanically.
trouble, PWB trouble.
The pick-up roller is kept in the lower position
mechanically.
Check &
Remedy
Remedy
Use Sim. 4-2 and Sim. 4-3 to check the operation of the
upper limit sensor and the lift-up operation, and check
the wiring.
upper limit sensor and the lift-up operation, and check
the wiring.
Detail
When lifting up, the upper limit is not detected within the
specified time (A4 LCC: 10 sec, A3 LCC: 8 sec)
specified time (A4 LCC: 10 sec, A3 LCC: 8 sec)
Section
PCU
Cause
Upper limit sensor abnormality, tray lift-up motor lock,
connector/harness connection trouble, PWB trouble.
connector/harness connection trouble, PWB trouble.
Check &
Remedy
Remedy
Use Sim. 4-2 and Sim. 4-3 to check the operation of the
upper limit sensor and the lift-up operation, and check
the wiring.
After making the countermeasure for the trouble
section, use Sim. 15 to cancel the trouble.
upper limit sensor and the lift-up operation, and check
the wiring.
After making the countermeasure for the trouble
section, use Sim. 15 to cancel the trouble.
Detail
Error of model code mismatch between the LCC and
the main unit
the main unit
Section
PCU
Cause
Mismatch between the LCC and the main unit
Check &
Remedy
Remedy
Check the combination of the LCC and the main unit.
When connecting to the main unit, the LCC firmware
must be changed to the firmware corresponding to the
machine.
When connecting to the main unit, the LCC firmware
must be changed to the firmware corresponding to the
machine.
Detail
Communication error between the ICU and the serial
vendor
vendor
Section
ICU
Cause
Cable disconnection or breakage.
Check &
Remedy
Remedy
Check connection between the ICU and the serial
vendor, and turn OFF / ON the power of the machine
and the vendor.
vendor, and turn OFF / ON the power of the machine
and the vendor.
Detail
Serial vendor breakdown
Section
ICU
Cause
Serial vendor breakdown3
Check &
Remedy
Remedy
"Err.XX" (XX: Section code) is displayed on the vendor
operation panel.
The error generating condition and the cancel method
differ depending on the detail code.
Refer to the operation manual of the vendor.
operation panel.
The error generating condition and the cancel method
differ depending on the detail code.
Refer to the operation manual of the vendor.
Detail
The lower limit position is not detected within the
specified time (10 sec) from starting the lowering
operation of the manual feed tray
specified time (10 sec) from starting the lowering
operation of the manual feed tray
Section
PCU
Cause
Lower position sensor abnormality, manual tray lift-up
motor lock, connector/harness connection trouble, PWB
trouble.
motor lock, connector/harness connection trouble, PWB
trouble.
Check &
Remedy
Remedy
Use Sim. 4-2 and Sim. 4-3 to check the operation of the
lower limit sensor, and the manual feed tray lift-up
motor, and check the wiring.
After making the countermeasure for the trouble
section, use Sim. 15 to cancel the trouble.
lower limit sensor, and the manual feed tray lift-up
motor, and check the wiring.
After making the countermeasure for the trouble
section, use Sim. 15 to cancel the trouble.
MX-M1100 SELF DIAG AND TROUBLE CODE 8 – 32
U6-68
Manual feed tray paper feed position
abnormality
abnormality
U6-69
Manual feed tray lift-up trouble
U9-00
Communication trouble between the
controller and the operation
controller and the operation
UC-02
CPT-ASIC abnormality
UC-12
CPT-ASIC abnormality
(DSPF detection)
(DSPF detection)
UC-20
Anti copy module trouble
UC-21
The DOCC (Document control) PWB is
not detected
not detected
UC-22
CPT PWB is not detected.
UC-30
Anti copy module trouble
(DSPF detection)
(DSPF detection)
UC-31
The DOCC (Document control) PWB is
not detected. (DPSF PWB side)
not detected. (DPSF PWB side)
Detail
When the lift-up operation is started, the upper limit
sensor is turned OFF before the pick-up SOL is turned
ON. (Normally the upper limit sensor is turned OFF only
after turning ON the pick-up SOL.)
sensor is turned OFF before the pick-up SOL is turned
ON. (Normally the upper limit sensor is turned OFF only
after turning ON the pick-up SOL.)
Section
PCU
Cause
Sensor abnormality, connector and harness connection
trouble, PWB trouble.
The pick-up roller is kept in the lower position
mechanically.
trouble, PWB trouble.
The pick-up roller is kept in the lower position
mechanically.
Check &
Remedy
Remedy
Use Sim. 4-2 and Sim. 4-3 to check the operation of the
upper limit sensor and the lift-up operation, and check
the wiring.
upper limit sensor and the lift-up operation, and check
the wiring.
Detail
When lifting up, the upper limit is not detected within the
specified time (10 sec)
specified time (10 sec)
Section
PCU
Cause
Upper limit sensor abnormality, tray lift-up motor lock,
connector/harness connection trouble, PWB trouble.
connector/harness connection trouble, PWB trouble.
Check &
Remedy
Remedy
Use Sim. 4-2 and Sim. 4-3 to check the operation of the
upper limit sensor and the lift-up operation, and check
the wiring.
After making the countermeasure for the trouble
section, use Sim. 15 to cancel the trouble.
upper limit sensor and the lift-up operation, and check
the wiring.
After making the countermeasure for the trouble
section, use Sim. 15 to cancel the trouble.
Detail
Communication establishment error / Framing / Parity /
Protocol error
Protocol error
Section
ICU
Cause
Slave unit PWB connector connection trouble.
Harness trouble between the slave unit PWB and the
ICU PWB.
Connector pin breakage of the mother board of the
slave unit PWB.
Harness trouble between the slave unit PWB and the
ICU PWB.
Connector pin breakage of the mother board of the
slave unit PWB.
Check &
Remedy
Remedy
Check connection of the connector and the harness
between the slave unit PWB and the ICU PWB.
Check the earth wire of the machine.
between the slave unit PWB and the ICU PWB.
Check the earth wire of the machine.
Detail
Access error to the CPT-ASIC
(The ASIC does not operate normally)
(The ASIC does not operate normally)
Section
SCU
Cause
B to B connector connection abnormality.
SCU PWB abnormality.
CPT-ASIC abnormality.
SCU PWB abnormality.
CPT-ASIC abnormality.
Check &
Remedy
Remedy
Check the B to B connector.
Replace the SCU PWB, or replace the option PWB.
Replace the SCU PWB, or replace the option PWB.
Detail
Access abnormality to CPT-ASIC
(When ASIC does not operate normally)
(When ASIC does not operate normally)
Section
SCU
Cause
B to B connector connection abnormality.
DSPF PWB abnormality.
CPT-ASIC abnormality
DSPF PWB abnormality.
CPT-ASIC abnormality
Check &
Remedy
Remedy
Check the B to B connector.
Replace the DSPF PWB, or replace the option PWB.
Replace the DSPF PWB, or replace the option PWB.
Detail
Communication error between the SCU and the DOCC.
Communication test error when turning on the power or
after canceling the exclusive simulation.
Communication test error when turning on the power or
after canceling the exclusive simulation.
Section
SCU
Cause
Contact trouble or disconnection of the connector and
the harness.
Control PWB (SCU) trouble or DOCC PWB trouble.
Malfunction due to noises.
the harness.
Control PWB (SCU) trouble or DOCC PWB trouble.
Malfunction due to noises.
Check &
Remedy
Remedy
Turn OFF / ON the power to cancel.
Check the connector and the harness of the
communication line.
Replace the SCU PWB or replace the DOCC PWB.
Check the connector and the harness of the
communication line.
Replace the SCU PWB or replace the DOCC PWB.
Detail
The DOCC (Document control) PWB is not detected in
the DSK model
the DSK model
Section
ICU
Cause
The DOCC (Document control) PWB is not installed in
the DSK model. Connection detection signal trouble.
the DSK model. Connection detection signal trouble.
Check &
Remedy
Remedy
Check the connection detection signal of the DOCC
(Document control) PWB, or replace the PWB.
(Document control) PWB, or replace the PWB.
Detail
The CPT PWB is not detected under the color kit enable
state
state
Section
ICU
Cause
The CPT PWB is not installed under the color kit enable
state, or the connection detection signal trouble.
state, or the connection detection signal trouble.
Check &
Remedy
Remedy
Check the connection detection signal of the CPT PWB,
or replace the PWB.
or replace the PWB.
Detail
Access abnormality to DOCC-ASIC
(when ASIC does not operate normally)
(when ASIC does not operate normally)
Section
SCU
Cause
B to B connector connection abnormality.
DSPF PWB abnormality, DOCC-ASIC abnormality.
DSPF PWB abnormality, DOCC-ASIC abnormality.
Check &
Remedy
Remedy
Check the B to B connector.
Replace the DSPF PWB, or replace the option PWB.
Replace the DSPF PWB, or replace the option PWB.
Detail
DOCC (document control) PWB cannot be detected in
the DSK model
the DSK model
Section
ICU
Cause
DOCC (document control) PWB is not installed in the
DSK model, or the connection detection signal trouble.
DSK model, or the connection detection signal trouble.
Check &
Remedy
Remedy
Check the connection detection signal of the DOCC
(document control) PWB, or replace the PWB.
(document control) PWB, or replace the PWB.
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