Specifications

MX-3610N TROUBLESHOOTING 6 – 31
U2-05 HDD/MFPC PWB SRAM contents
inconsistency
(18cpm/20cpm/23cpm/31cpm(G)
machine)
U2-05 Erroneous detection of account
management data / HDD internal
authentication DB table error
(26cpm/36cpm/31cpm(A) machine)
U2-10 MFPC PWB SRAM user authentication
index check sum error
U2-11 MFPC PWB EEPROM counter check
sum error
U2-24 MFPC PWB SRAM memory user
authentication counter check sum
error
U2-30 MFPC PWB and PCU PWB
manufacturing No. data inconsistency
U2-40 SD card system storage data area
error
Trouble content The HDD or the MFPC PWB installed is improper.
(Erroneous detection of account management data)
Detail MFP
Cause The HDD was replaced.
The MFPC PWB was replaced.
HDD trouble
MFPC PWB trouble
Check & Remedy (Refer to the pages on the necessary works after
replacing the HDD and the MFPC PWB in the Service
Manual, and perform the works.)
Use SIM16 to cancel the error.
Trouble content
Detail MFP
Cause The HDD internal authentication DB table is broken.
After detection of the broken authentication DB table,
the machine is rebooted to rebuild the authentication
table.
This error can be confirmed only by the error history
of SIM22-4. If frequent occurrence of this error is
found, the following devices may possibly be
damaged.
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 "Necessary works and procedures for replacement
of HDD and MFPC PWB" and perform the necessary
procedures.
If this error does not occur frequently, the above
procedure is not required.
Trouble content
Detail MFP
Cause SRAM user index information (user authentication
basic data) check sum error.
MFPC PWB SRAM trouble.
MFPC PWB trouble.
Strong external noises.
Check & Remedy Use SIM16 to cancel the error.
(Index information data in the HDD are transferred to
the SRAM.)
Replace the MFPC PWB.
(Refer to the pages on the necessary works after
replacing the MFPC PWB in the Service Manual, and
perform the works.)
Trouble content
Detail MFP
Cause MFPC PWB EEPROM trouble
EEPROM socket contact trouble
MFPC PWB trouble
Strong external noises.
Check & Remedy Use SIM16 to cancel the error. (The previous writing
data (about the latest 8 sheets) are written into the
EEPROM.)
Replace the MFPC PWB.
(Refer to the pages on the necessary works after
replacing the MFPC PWB in the Service Manual, and
perform the works.)
Trouble content
Detail MFP
Cause MFPC PWB SRAM trouble
MFPC PWB trouble
Strong external noises.
Check & Remedy Use SIM16 to cancel the error. (The check sum error
detection data are calculated again to reset the
proper check sum data.)
Replace the MFPC PWB.
(Refer to the pages on the necessary works after
replacing the MFPC PWB in the Service Manual, and
perform the works.)
Trouble content Inconsistency between the manufacturing No. saved
in the PCU PWB and that in the MFPC PWB.
Detail MFP
Cause When replacing the PCU PWB or the MFPC PWB,
the EEPROM which was mounted on the PWB before
replacement is not mounted on the new PWB.
MFPC 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 MFPC PWB.
(Refer to the pages on the necessary works after
replacing the MFPC PWB in the Service Manual, and
perform the works.)
Replace the PCU PWB.
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.