Read Sharp MX-6201N / MX-7001N (serv.man20) Service Manual online
MX-7001N SELF DIAG AND TROUBLE CODE 8 – 28
L4-13
Fusing external heating separation
trouble
trouble
L4-30
Controller fan motor trouble
L4-31
Paper exit cooling fan F lock
L4-32
Power cooling fan 1 lock
L4-34
LSU cooling fan trouble
L4-35
Fusing exhaust fan lock
L4-36
Fusing suction fan lock
L4-37
Charger cooling fan lock
L4-38
Machine ventilation fan center lock
Trouble content
When the fusing external heating unit is separated,
the separation sensor status change is not
detected within the specified time.
the separation sensor status change is not
detected within the specified time.
Section
PCU
Case 1
Cause
Connector and harness connection trouble
Check and
remedy
remedy
Check connection of the connector and the
harness.
harness.
Case 2
Cause
Separation mechanism trouble, separation motor
trouble, separation sensor trouble
trouble, separation sensor trouble
Check and
remedy
remedy
Check the separation mechanism. Replace the
separation motor and the separation sensor.
separation motor and the separation sensor.
Case 3
Cause
PCU PWB trouble
Check and
remedy
remedy
Replace the PCU PWB.
Trouble content
1)
The motor lock signal is detected during
rotation of the controller fan motor.
rotation of the controller fan motor.
2)
The motor lock signal is detected during
rotation of the HDD fan motor.
rotation of the HDD fan motor.
Section
MFP
Case 1
Cause
Fan motor trouble
Check and
remedy
remedy
Use SIM6-2 to check the operation of the fan
motor.
motor.
Case 2
Cause
Harness connection trouble between the mother
PWB and the fan motor.
PWB and the fan motor.
Check and
remedy
remedy
Check the harness and the connector between the
mother PWB and the fan motor.
mother PWB and the fan motor.
Case 3
Cause
Control circuit trouble
Check and
remedy
remedy
Replace the MFPcnt PWB.
Case 4
Cause
Mother PWB trouble.
Check and
remedy
remedy
Replace the mother PWB.
Trouble content
When the paper exit cooling fan F is operated, the
fan operation signal is not detected within the
specified time.
fan operation signal is not detected within the
specified time.
Section
PCU
Case 1
Cause
Fan connector disconnection
Check and
remedy
remedy
Check the harness and the connector between the
PCU PWB and the fan.
PCU PWB and the fan.
Case 2
Cause
Fan does not rotate because of other trouble.
Check and
remedy
remedy
Use SIM6-2 to check that the fan is actually
rotating.
rotating.
Trouble content
When the power cooling fan 1 is operated, the fan
operation signal is not detected within the specified
time.
operation signal is not detected within the specified
time.
Section
PCU
Case 1
Cause
Power cooling fan 1 connector disconnection
Check and
remedy
remedy
Check the harness and the connector between the
PCU PWB and the fan.
PCU PWB and the fan.
Case 2
Cause
Fan does not rotate because of other trouble
Check and
remedy
remedy
Use SIM6-2 to check that the fan is actually
rotating.
rotating.
Trouble content
When the LSU cooling fan is operated, the fan
operation signal is not detected within the specified
time.
operation signal is not detected within the specified
time.
Section
PCU
Case 1
Cause
Fan connector disconnection
Check and
remedy
remedy
Check the harness and the connector between the
LSU PWB and the fan.
LSU PWB and the fan.
Case 2
Cause
Fan does not rotate because of other trouble
Check and
remedy
remedy
Use SIM6-2 to check that the fan is actually
rotating.
If the trouble is not canceled, replace the LSU fan
and the LSU cnt PWB.
rotating.
If the trouble is not canceled, replace the LSU fan
and the LSU cnt PWB.
Trouble content
When the fusing exhaust fan is operated, the fan
operation signal is not detected within the specified
time.
operation signal is not detected within the specified
time.
Section
PCU
Case 1
Cause
Fan connector disconnection
Check and
remedy
remedy
Check the harness and the connector between the
PCU PWB and the fan.
PCU PWB and the fan.
Case 2
Cause
Fan does not rotate because of other trouble.
Check and
remedy
remedy
Use SIM6-2 to check that the fan is actually
rotating.
rotating.
Trouble content
When the fusing suction fan is operated, the fan
operation signal is not detected within the specified
time.
operation signal is not detected within the specified
time.
Section
PCU
Case 1
Cause
Fan connector disconnection
Check and
remedy
remedy
Check the harness and the connector between the
PCU PWB and the fan.
PCU PWB and the fan.
Case 2
Cause
Fan does not rotate because of other trouble.
Check and
remedy
remedy
Use SIM6-2 to check that the fan is actually
rotating.
rotating.
Trouble content
When the charger cooling fan is operated, the fan
operation signal is not detected within the specified
time.
operation signal is not detected within the specified
time.
Section
PCU
Case 1
Cause
Fan connector disconnection
Check and
remedy
remedy
Check the harness and the connector between the
PCU PWB and the fan.
PCU PWB and the fan.
Case 2
Cause
Fan does not rotate because of other trouble.
Check and
remedy
remedy
Use SIM6-2 to check that the fan is actually
rotating.
rotating.
Trouble content
When the machine ventilation fan center is
operated, the fan operation signal is not detected
within the specified time.
operated, the fan operation signal is not detected
within the specified time.
Section
PCU
Case 1
Cause
Fan connector disconnection
Check and
remedy
remedy
Check the harness and the connector between the
PCU PWB and the fan.
PCU PWB and the fan.
Case 2
Cause
Fan does not rotate because of other trouble.
Check and
remedy
remedy
Use SIM6-2 to check that the fan is actually
rotating.
rotating.
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