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(2) Trouble detection sequence and trouble cancel sequence when turning on the power
(Power ON sequence)
H3, H4, H5, U1, U2, U6, F3 trouble check
Trouble check is preformed in each block,
and the result is sent to the MFP.
H3, H4, H5
Saved in the PCU
U1
Saved in the MFP
U2
Saved in each block
F3, U6
Saved in the PCU
(Trouble cancel sequence)
When executing SIM 13, 14, 16
SIM13: U1 trouble cancel
SIM14: H3, H4, H5
(Color mode inhibition) cancel
SIM15: LCC/LCT(U6)trouble cancel, F3 cansel
SIM16: U2 trouble cancel
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
U2
First
(Low priority)
A0
i
U2
(High priority)
E7
U1
E7
MFP event
manager
Communication of trouble status
[Trouble code] [Trouble status]
sim task
Trouble cancel command
Trouble cancel status
is communicated.
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
23
Individual data check sum error of SRAM memory
22
SRAM memory check sum error
15
Incompatible DSK BOOT and program firmware
20
Conflict firmware and EEPROM data version (MFP)
11
MFPC PWB EEPROM counter check sum error
00
MFP EEPROM read/write error
96
MFPC PWB DIMM memory check error
01
Battery trouble
60
MFP connection trouble
MX-M316N TROUBLESHOOTING 7 – 4
Each block
When the power is turned on,
check is made in each block.
Trouble cancel
(The trouble memory is
initialized.)
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