MX3500N SELF DIAG AND TROUBLE CODE 8 – 27
U2-90
EEPROM read/write error
(PCU detection)
U2-91
EEPROM (PCU) check sum error
U5-00
SPF communication trouble
U5-16
SPF fan motor trouble
U5-30
SPF lift-up trouble
U5-31
SPF tray lift-down trouble
U5-40
SPF install trouble
U6-00
Desk communication trouble
U6-01
Tray 1 lift-up trouble
U6-02
Tray 2 lift-up trouble
Trouble content
EEPROM version error, write error to EEPROM
Section
PCU
Case 1
Cause
EEPROM trouble, installation of EEPROM which
is not initialized
Check and
remedy
Check that EEPROM is properly set.
Case 2
Cause
PCU PWB EEPROM access circuit trouble
Check and
remedy
To avoid deletion of the counter data/adjustment
data, use the simulation to save the counter/
adjustment values. (If there is a printer option,
execute SIM22-1 to save the counter data and the
adjustment values.) Replace the PCU PWB. Use
SIM16 to cancel the trouble.
Trouble content
Check sum error of adjustment value (PCU)
Section
PCU
Case 1
Cause
Control circuit hang-up due to electrical noises
Check and
remedy
Use SIM16 to cancel the trouble.
Case 2
Cause
EEPROM trouble.
Check and
remedy
Check that EEPROM is properly set.
Case 3
Cause
PCU PWB EEPROM access circuit trouble
Check and
remedy
To avoid deletion of the counter data/adjustment
data, use the simulation to save the counter/
adjustment values. (If there is a printer option,
execute SIM22-1 to save the counter data and the
adjustment values.) Replace the PCU PWB.
Trouble content
Communication error between the SCU and the
DSPF, communication line test error after turning
on the power or canceling the exclusive simulation
(MX-3501N/3501FN/4501N/4501FN)
Section
Scanner
Case 1
Cause
Malfunction due to electrical noises
Check and
remedy
Cancel the trouble by turning OFF/ON.
Case 2
Cause
Connector and harness connection trouble or
disconnection
Check and
remedy
Check the connector and the harness of the
communication line.
Case 3
Cause
Control (SCU) PWB trouble. DSPF PWB trouble
Check and
remedy
Replace the control (SCU) PWB. Replace the
DSPF PWB.
Trouble content
The motor lock signal is detected during rotation of
the fan.
Section
Scanner
Case 1
Cause
Fan motor trouble,harness of the fan motor related,
circuit trouble
Check and
remedy
Use SIM2-3 to check the operation.
Check harness, connector and fan motor related
circuit.
Trouble content
Lift-up trouble is detected 5 times continuously.
(MX-3501N/4501N)
Section
Scanner
Case 1
Cause
STUD/STLD trouble
Check and
remedy
Check STUD/STLD and its harness and connector.
Check the lift-up unit.
Trouble content
Lift-down trouble (STLD does not turn OFF within
the specified time.) (MX-3501N/4501N)
Section
Scanner
Case 1
Cause
STUD/STLD trouble
Check and
remedy
Check STUD/STLD and its harness and connector.
Check the lift-up unit.
Trouble content
Detected the installed (individual installed signal )
of RSPF/DSPF both.
Section
Scanner
Case 1
Cause
Circuit trouble of the installed detection signal
Check and
remedy
Check installed detection circuit and harness,
connector.
Trouble content
Desk communication error, communication line
test error after turning on the power or canceling
the exclusive simulation
Section
PCU
Case 1
Cause
Connector and harness connection trouble or
disconnection, desk control PWB trouble, control
PWB (PCU) trouble, malfunction due to electrical
noises
Check and
remedy
Cancel the trouble by turning OFF/ON. Check the
connector and the harness of the communication
line.
Trouble content
DLUD1 does not turn ON within the specified time.
Section
PCU
Case 1
Cause
DLUD1 sensor trouble, tray 1 lift-up motor trouble,
desk PWB, lift-up unit, paper feed unit harness
connection trouble
Check and
remedy
Check DLUD1 and its harness and connector.
Check the lift-up unit.
Trouble content
DLUD2 does not turn ON within the specified time.
Section
PCU
Case 1
Cause
DLUD2 sensor trouble, tray 2 lift-up motor trouble,
desk PWB, lift-up unit, paper feed unit harness
connection trouble
Check and
remedy
Check DLUD2 and its harness and connector.
Check the lift-up unit.
Summary of Contents for MX 3501N - Color Laser - Copier
Page 64: ...MX3500N ADJUSTMENTS 6 19 E F Yellow C D Magenta A B Cyan ...
Page 390: ...MX3500N PHOTOCONDUCTOR SECTION i 7 3 6 7 9 8 10 2 5 7 9 1 4 11 ...
Page 444: ...Memo ...
Page 445: ...Memo ...