MX-M264U TROUBLESHOOTING 7 – 4
(2) Trouble detection sequence and trouble cancel sequence when turning on the power
The process has priority when the power is turned ON with the MFP.
When booting, two or more troubles in the list below may be detected. In this case, the trouble code of higher priority is displayed.
Process sequence Error code Content
First
(Low priority)
ï‚

Last
(High priority)
U2 60 Watermark check error
50 HDD user authentication data check sum error (SD card when no HDD is installed)
30 MFPC PWB and PCU PWB manufacturing No. data inconsistency
24 MFPC PWB SRAM memory user authentication counter check sum error
10 MFPC PWB SRAM user authentication index check sum error
A0 15 Incompatible DSK BOOT and program firmware
20 Conflict firmware and EEPROM data version (MFP)
U2 11 MFPC PWB EEPROM counter check sum error
00 MFP EEPROM read/write error
E7 96 MFPC PWB DIMM memory check error
U1 01 Battery trouble
E7 60 MFP connection trouble
A0 04 Scanner expansion PWB (ACU) (ACRE) ROM error
(Power ON sequence)
H3, H4, H5 Saved in the PCU
U1 Saved in the MFP
U2 Saved in each block
F3-12, 22 Saved in the PCU
(Trouble cancel sequence)
When executing SIM 13, 14, 16
H3, H4, H5, U1, U2, F3 trouble check
SIM13: U1 trouble cancel
SIM14: H3, H4, H5
(Color mode inhibition) cancel
SIM16: U2 trouble cancel
Each block
MFP event
manager
Communication of trouble status
[Trouble code] [Trouble status]
Trouble cancel command
When the power is turned on,
check is made in each block.
Trouble cancel status
is communicated.
Trouble cancel
(The trouble memory is
initialized.)
sim task
Trouble check is preformed in each block,
and the result is sent to the MFP.
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