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MX-4101N SELF DIAG AND TROUBLE CODE 7 – 24
U2-24
MFP PWB SRAM memory user
authentication counter check sum
error
authentication counter check sum
error
U2-30
MFP PWB and PCU PWB manufactur-
ing No. data inconsistency
ing No. data inconsistency
U2-50
HDD user authentication data check
sum error
sum error
U2-60
Water Mark check error
U2-80
SCU PWB EEPROM read/write error
U2-81
SCU PWB EEPROM check sum error
U2-90
PCU PWB EEPROM read/write error
U2-91
PCU PWB EEPROM check sum error
U5-00
Document feed unit communication
error
error
Trouble content
Detail
MFP
Cause
MFP PWB SRAM trouble.
MFP PWB trouble.
Strong external noises.
MFP PWB trouble.
Strong external noises.
Check & Remedy
Use SIM16 to cancel the error.
Trouble content
Detail
MFP
Cause
Inconsistency between the manufacturing No. saved
in the PCU PWB and that in the MFP PWB.
When replacing the PCU PWB or the MFP PWB, the
EEPROM which was mounted on the PWB before
replacement is not mounted on the new PWB.
MFP PWB trouble.
PCU PWB trouble
in the PCU PWB and that in the MFP PWB.
When replacing the PCU PWB or the MFP PWB, the
EEPROM which was mounted on the PWB before
replacement is not mounted on the new PWB.
MFP PWB trouble.
PCU PWB trouble
Check & Remedy
Check that the EEPROM is properly set.
Check to confirm that the EEPROM which was
mounted on the PWB before replacement is
mounted on the new PWB.
Replace the MFP PWB.
Replace the PCU PWB.
Check to confirm that the EEPROM which was
mounted on the PWB before replacement is
mounted on the new PWB.
Replace the MFP PWB.
Replace the PCU PWB.
Trouble content
Detail
MFP
Cause
HDD trouble.
MFP PWB trouble.
Strong external noises.
MFP PWB trouble.
Strong external noises.
Check & Remedy
Initialize the data (one-touch, group, program, etc.)
related to the check sum error by turning OFF/ON
the power.
Since the registered contents are deleted, register
the deleted contents again.
Use SIM16 to cancel the error.
Replace the HDD.
Replace the MFP PWB.
related to the check sum error by turning OFF/ON
the power.
Since the registered contents are deleted, register
the deleted contents again.
Use SIM16 to cancel the error.
Replace the HDD.
Replace the MFP PWB.
Trouble content
Detail
MFP
Cause
Watermark data trouble
Check & Remedy
Use SIM49-5 to upload the watermark data.
Trouble content
Detail
SCU
Cause
SCU PWB EEPROM trouble.
SCU PWB trouble.
EEPROM socket contact trouble.
SCU PWB trouble.
EEPROM socket contact trouble.
Check & Remedy
Replace the SCU PWB EEPROM.
Replace the SCU PWB.
Check contact of the EEPROM socket.
Put down the counter/adjustment values in the
simulation to prevent against loss of the counter data
and the adjustment values.
Use SIM16 to cancel the trouble.
Replace the SCU PWB.
Check contact of the EEPROM socket.
Put down the counter/adjustment values in the
simulation to prevent against loss of the counter data
and the adjustment values.
Use SIM16 to cancel the trouble.
Trouble content
Detail
SCU
Cause
SCU PWB EEPROM trouble.
Installation of non-initialized EEPROM.
SCU PWB trouble.
EEPROM socket contact trouble.
Installation of non-initialized EEPROM.
SCU PWB trouble.
EEPROM socket contact trouble.
Check & Remedy
Replace the SCU PWB EEPROM.
Replace the SCU PWB.
Check contact of the EEPROM socket.
Put down the counter/adjustment values in the
simulation to prevent against loss of the counter data
and the adjustment values.
Use SIM16 to cancel the trouble.
Replace the SCU PWB.
Check contact of the EEPROM socket.
Put down the counter/adjustment values in the
simulation to prevent against loss of the counter data
and the adjustment values.
Use SIM16 to cancel the trouble.
Trouble content
Detail
PCU
Cause
PCU PWB EEPROM trouble.
Installation of non-initialized EEPROM.
PCU PWB trouble
EEPROM socket contact trouble.
Installation of non-initialized EEPROM.
PCU PWB trouble
EEPROM socket contact trouble.
Check & Remedy
Replace the PCU PWB EEPROM.
Replace the PCU PWB.
Check contact of the EEPROM socket.
Put down the counter/adjustment values in the
simulation to prevent against loss of the counter data
and the adjustment values.
Use SIM16 to cancel the trouble.
Replace the PCU PWB.
Check contact of the EEPROM socket.
Put down the counter/adjustment values in the
simulation to prevent against loss of the counter data
and the adjustment values.
Use SIM16 to cancel the trouble.
Trouble content
Detail
PCU
Cause
PCU PWB EEPROM trouble.
Installation of non-initialized EEPROM.
PCU PWB trouble
EEPROM socket contact trouble.
Installation of non-initialized EEPROM.
PCU PWB trouble
EEPROM socket contact trouble.
Check & Remedy
Replace the PCU PWB EEPROM.
Replace the PCU PWB.
Check contact of the EEPROM socket.
Put down the counter/adjustment values in the
simulation to prevent against loss of the counter data
and the adjustment values.
Use SIM16 to cancel the trouble.
Replace the PCU PWB.
Check contact of the EEPROM socket.
Put down the counter/adjustment values in the
simulation to prevent against loss of the counter data
and the adjustment values.
Use SIM16 to cancel the trouble.
Trouble content
Detail
SCU
Cause
Connector, harness connection trouble.
SCU PWB trouble.
DSPF PWB trouble.
SCU PWB trouble.
DSPF PWB trouble.
Check & Remedy
Turn OFF/ON the power.
Check connection of the connector and the harness.
Replace the SCU PWB.
Replace the DSPF PWB.
Check connection of the connector and the harness.
Replace the SCU PWB.
Replace the DSPF PWB.
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