Read Sharp MX-6240N / MX-7040N (serv.man26) Service Manual online
MX-7040N TROUBLESHOOTING 7 – 59
(4) Relation between the MFPC PWB LED status and
errors
When the machine cannot be booted, the content and the cause of
the error can be presumed by checking the status of LED (2) of the
MFP PWB shown in the figure below.
the error can be presumed by checking the status of LED (2) of the
MFP PWB shown in the figure below.
<Process content and LED display>
*
: LED ON /
: LED OFF
<When an error occurs>
* In case of an error, the LED's flash as shown in the above table.
*
: LED ON /
: LED OFF
2. JAM and troubleshooting
A. JAM code list
(1) PCU JAM cause (Some parts are overlapped with
the SCU code table.)
Main unit
LED status
(Lighting)
Process operation content
Cause for halt during
operation
CPU initial setting
Reus ASIC trouble
Memory adjustment, Memory
check, etc.
check, etc.
Memory and its
peripheral circuit trouble
peripheral circuit trouble
Interruption-related initialization
Reus ASIC trouble
PCIe initialization
PCIe peripheral circuit
trouble (Intel Atom/PCIe
Switch, etc.)
trouble (Intel Atom/PCIe
Switch, etc.)
Basic device initialization
Reus ASIC trouble
SD card initialization
Reus ASIC trouble
SD card trouble
SD card trouble
OS initialization (1)
Reus ASIC trouble
Timer enabling
Reus ASIC trouble
Serial driver enabling
I2C driver enabling
I2C driver enabling
Reus ASIC trouble
RTC initialization
Reus ASIC trouble
Image process IP initialization
Reus ASIC trouble
OS initialization (2)
Reus ASIC trouble
Main process
Reus ASIC trouble
LED status
(Flashing)
Error content
Cause
Memory combination error
Memory trouble
Memory with operations
unguaranteed
unguaranteed
Memory trouble
SPD set value error (Memory
trouble)
trouble)
Memory trouble
SPD read error
Memory trouble
Internal set value error
Memory trouble
CF
SD
(2)
(1)
JAM code
JAM content
MFT_L
Manual feed tray paper feed JAM
(100K for the paper feed counter)*
(100K for the paper feed counter)*
1
TRAY1_L
Tray 1 paper feed JAM
(100K for the paper feed counter)*
(100K for the paper feed counter)*
1
TRAY2_L
Tray 2 paper feed JAM
(100K for the paper feed counter)*
(100K for the paper feed counter)*
1
TRAY3_L
Tray 3 paper feed JAM
(100K for the paper feed counter)*
(100K for the paper feed counter)*
1
TRAY4_L
Tray 4 paper feed JAM
(100K for the paper feed counter)*
(100K for the paper feed counter)*
1
LCC_L
Side A4LCC paper feed JAM
(100K for the paper feed counter)*
(100K for the paper feed counter)*
1
LCT1_1_L
Multi-stage LCT tray 1 paper feed JAM
(100K for the paper feed counter)*
(100K for the paper feed counter)*
1
LCT1_2_L
Multi-stage LCT tray 2 paper feed JAM
(100K for the paper feed counter)*
(100K for the paper feed counter)*
1
LCT1_3_L
Multi-stage LCT tray 3 paper feed JAM
(100K for the paper feed counter)*
(100K for the paper feed counter)*
1
LCT2_1_L
Expanded multi-stage LCT tray 1 paper feed JAM
(100K for the paper feed counter)*
(100K for the paper feed counter)*
1
LCT2_2_L
Expanded multi-stage LCT tray 2 paper feed JAM
(100K for the paper feed counter)*
(100K for the paper feed counter)*
1
LCT2_3_L
Expanded multi-stage LCT tray 3 paper feed JAM
(100K for the paper feed counter)*
(100K for the paper feed counter)*
1
INSTR1_L
Inserter tray 1 paper feed JAM
(100K for the paper feed counter)*
(100K for the paper feed counter)*
1
INSTR2_L
Inserter tray 2 paper feed JAM
(100K for the paper feed counter)*
(100K for the paper feed counter)*
1
MFT
Manual feed tray paper feed JAM (MPFD not-reached)
MPFD_S
MPFD remaining JAM
TRAY1
Tandem tray 1
T1PPD1_S1
T1PPD1 remaining JAM
T1PPD2_N1
Tandem tray 1 paper feed JAM
(T1PPD2 not-reached JAM)
(T1PPD2 not-reached JAM)
T1PPD2_S1
T1PPD2 remaining JAM
TRAY2
Tandem tray 2 paper feed JAM
(T2PPD1 not-reached JAM)
(T2PPD1 not-reached JAM)
T2PPD1_N3
T2PPD1 not-reached JAM (cassette 3 paper feed
paper)
paper)
T2PPD1_N4
T2PPD1 not-reached JAM (cassette 4 paper feed
paper)
paper)
T2PPD1_S2
T2PPD1 remaining JAM (cassette 2 paper feed paper)
T2PPD1_S3
T2PPD1 remaining JAM (cassette 3 paper feed paper)
T2PPD1_S4
T2PPD1 remaining JAM (cassette 4 paper feed paper)
TRAY3
Cassette 3 paper feed JAM (C3PFD not-reached JAM)
C3PFD_N4
C3PFD not-reached JAM (cassette 4 paper feed paper)
C3PFD_S3
C3PFD remaining JAM (cassette 3 paper feed paper)
C3PFD_S4
C3PFD remaining JAM (cassette 4 paper feed paper)
TRAY4
Cassette 4 paper feed JAM (C4PFD not-reached JAM)
C4PFD_S4
C4PFD remaining JAM (cassette 4 paper feed paper)
LPPD1_NL
LPPD not-reached JAM
(side A4/A3LCC paper feed paper)
(side A4/A3LCC paper feed paper)
LPPD1_NL11
LPPD not-reached JAM
(large capacity paper feed tray 1 paper feed paper)
(large capacity paper feed tray 1 paper feed paper)
LPPD1_NL12
LPPD not-reached JAM
(large capacity paper feed tray 2 paper feed paper)
(large capacity paper feed tray 2 paper feed paper)
LPPD1_NL13
LPPD not-reached JAM
(large capacity paper feed tray 3 paper feed paper)
(large capacity paper feed tray 3 paper feed paper)
LPPD1_NL21
LPPD not-reached JAM
(large capacity paper feed tray 4 paper feed paper)
(large capacity paper feed tray 4 paper feed paper)
LPPD1_NL22
LPPD not-reached JAM
(large capacity paper feed tray 5 paper feed paper)
(large capacity paper feed tray 5 paper feed paper)
LPPD1_NL23
LPPD not-reached JAM
(large capacity paper feed tray 6 paper feed paper)
(large capacity paper feed tray 6 paper feed paper)
LPPD1_NLM
LPPD not-reached JAM
(large capacity paper feed tray manual paper feed
paper)
(large capacity paper feed tray manual paper feed
paper)
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