MX3114N TROUBLESHOOTING 7 – 26
U2-40 SD card system storage data area
error
U2-41 HDD system storage data area error
U2-42 Machine adjustment data (system
storage data area) error
U2-50 HDD*
1
user authentication data check
sum error
*1: SD card when no HDD is installed.
U2-60 Watermark 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
Trouble content
Detail MFP
Cause A file error occurs in the SD card system storage data
partition.
SD card trouble
MFPC PWB trouble
Check & Remedy Turn OFF/ON the power, and the backup data in the
HDD are written into the SD card and the machine is
automatically booted.
Check the MFPC PWB, and replace if necessary.
Check the SD card, and replace if necessary.
Trouble content
Detail MFP
Cause A file error occurs in the HDD system saved data
area, disabling backup of the saved file of the
machine adjustment values in the SD card.
HDD trouble
MFPC PWB trouble
Check & Remedy Check the HDD, and replace if necessary.
Check the MFPC PWB, and replace if necessary.
When replacing the HDD and the MFPC PWB, refer
to the chapter of "Necessary works and procedures
of HDD and MFPC PWB replacement."
Trouble content
Detail MFP
Cause The saved file of the machine adjustment values in
the SD card and the HDD cannot be found or is
broken.
Both of the SD card set data and the HDD system
saved data area are broken.
HDD trouble
MFPC PWB trouble
SD card trouble
Check & Remedy Check the HDD, and replace if necessary.
Check the MFPC PWB, and replace if necessary.
Check the SD card, and replace if necessary.
When replacing the HDD, the MFPC PWB, and the
SD card, refer to the chapter of "Necessary works
and procedures of HDD, MFPC PWB, and SD card
replacement."
Use SIM to adjust the machine again and set the
adjustment values.
Trouble content
Detail MFP
Cause HDD trouble*
1
MFPC PWB trouble
Strong external noises.
Check & Remedy Check the data related to the check sum error
(address book, image send system registration data
(senders record, meta data)) and register again.
Use SIM16 to cancel the U2 trouble.
Replace the HDD*
1
.
Replace the MFPC PWB.
(Refer to the pages on the necessary works after
replacing the HDD and the MFPC PWB in the Service
Manual, and perform the works.)*
1
Trouble content
Detail MFP
Cause Watermark data trouble
HDD trouble
MFPC PWB trouble
Check & Remedy Use SIM16 to cancel the U2 trouble.
Use SIM49-5 to install the watermark data.
Replace the HDD.
Replace the MFPC PWB.
(Refer to the pages on the necessary works after
replacing the HDD and the MFPC PWB in the Service
Manual, and perform the works.)
Trouble content
Detail SCU
Cause SCU PWB EEPROM trouble
SCU PWB trouble
SCU PWB EEPROM socket connection trouble
Check & Remedy Replace the SCU PWB EEPROM.
Replace the SCU PWB.
Check connection of the SCU PWB EEPROM socket.
Check the SIM adjustment value of the following
items, and adjust again if they are improper.
• Scanner-related adjustments
• Touch panel-related adjustments
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.
Check & Remedy Replace the SCU PWB EEPROM.
Replace the SCU PWB.
Check contact of the EEPROM socket.
Use SIM16 to cancel the trouble. (The check sum
error detection data are calculated again to reset the
proper check sum data.)
Trouble content
Detail PCU
Cause PCU PWB EEPROM trouble
PCU PWB trouble
EEPROM socket contact trouble
Check & Remedy Replace the PCU PWB EEPROM.
Check the SIM adjustment values of the engine, and
adjust again if they are improper.
Replace the PCU PWB.
Check contact of the EEPROM socket.
Use SIM16 to cancel the trouble.
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