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MX-7000N SELF DIAG AND TROUBLE CODE 8 – 28
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
L4-39
Machine ventilation fan right lock
L4-40
Ozone fan 1 lock
L4-41
Ozone fan 2 lock
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.
Trouble content
When the machine ventilation fan right is operated,
the fan operation signal is not detected within the
specified time.
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.
Trouble content
When the ozone 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
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 ozone fan 2 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.
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