Sharp MX-6500N / MX-7500N (serv.man21) Service Manual ▷ View online
MX-7500N TROUBLESHOOTING 7 – 5
(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)
Last
(High priority)
U2
60
Watermark check error
50
HDD user authentication data check sum error
30
MFPC PWB and PCU PWB manufacturing No. data inconsistency
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
48
Scanner expansion PWB (ACRE) ASIC memory error
42
Image data trouble (Scanner expansion PWB (ACRE) ASIC)
96
MFPC PWB DIMM memory check error (MFPC PWB)
95
Printer PWB DIMM memory check error (PRINTER section)
U1
01
Battery trouble
E7
60
Combination error between PWB and firmware (MFPC PWB detection)
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
U6-09
Saved in the PCU
F3-12, 22
Saved in the PCU
(Trouble cancel sequence)
When executing SIM 13, 14, 15, 16
H3, H4, H5, U1, U2, U6, F3 trouble check
SIM13: U1 trouble cancel
SIM14: H3, H4, H5
SIM14: H3, H4, H5
(Color mode inhibition) cancel
SIM15: U6 trouble cancel,
F3-12, F3-22 trouble cancel
SIM16: U2 trouble cancel
Each block
MFP event
manager
manager
Communication of trouble status
[Trouble code] [Trouble status]
[Trouble code] [Trouble status]
Trouble cancel command
When the power is turned on,
check is made in each block.
check is made in each block.
Trouble cancel status
is communicated.
is communicated.
Trouble cancel
(The trouble memory is
initialized.)
(The trouble memory is
initialized.)
sim task
Trouble check is preformed in each block,
and the result is sent to the MFP.
and the result is sent to the MFP.
MX-7500N TROUBLESHOOTING 7 – 6
F. Error code list
Trouble code
Trouble content
Trouble
detection
Mechanism
Option
Electricity
FAX
Supply
Main
code
code
Sub
code
A0
01
PCU PWB ROM error
MFP
○
02
SCU PWB ROM error
MFP
○
04
Scanner expansion PWB (ACU) (ACRE) ROM error
MFP
○
10
Color profile error
MFP
○
15
Incompatible DSK BOOT and program firmware
MFP
○
17
Inconsistency between the UI data and the CPU firmware version
MFP
○
20
Conflict firmware and EEPROM data version (MFP)
MFP
○
21
Conflict firmware and EEPROM data version (PCU)
PCU
○
22
Conflict firmware and EEPROM data version (SCU)
SCU
○
C1
01
Charger cleaner trouble (K)
PCU
○
03
Charger cleaner trouble (C)
PCU
○
05
Charger cleaner trouble (M)
PCU
○
07
Charger cleaner trouble (Y)
PCU
○
10
Main charger trouble (Monochrome)
PCU
○
14
Main charger trouble (Color)
PCU
○
C4
00
PTC trouble
PCU
○
01
PTC (Pre Transfer Charger) cleaner trouble
PCU
○
20
Primary transfer output open trouble
Primary
transfer
transfer
○
21
Primary transfer output short trouble
Primary
transfer
transfer
○
30
Secondary transfer output open trouble
Secondary
transfer
transfer
○
31
Secondary transfer output short trouble
Secondary
transfer
transfer
○
E6
10
Shading error (Black correction)
SCU
○
11
Shading error (White correction)
SCU
○
14
CCD-ASIC error
SCU
○
E7
01
MFP image data error
MFP
○
02
HDD trouble when the mirroring kit is installed
MFP
○
03
HDD trouble (When the mirroring kit is not installed)
MFP
○
03
HDD trouble (When the mirroring kit is installed)
MFP
○
04
HDD-ASIC error
MFP
○
07
SD card error
MFP
○
10
Shading error (Black correction)
SCU
○
11
Shading error (White correction)
SCU
○
14
CCD-ASIC error
SCU
○
20
LSU laser detection and deterioration error (K)
PCU
○
21
LSU laser deterioration error (C)
PCU
○
22
LSU laser deterioration error (M)
PCU
○
23
LSU laser deterioration error (Y)
PCU
○
24
LSU LD driver trouble (K)
PCU
○
25
LSU LD driver trouble (C)
PCU
○
26
LSU LD driver trouble (M)
PCU
○
27
LSU LD driver trouble (Y)
PCU
○
28
LSU - PCU connection error
PCU
○
29
LSU ASIC frequency error
PCU
○
35
Communication trouble with the CIS-ASIC
PCU
○
36
CIS-ASIC black level detection abnormality
PCU
○
37
CIS-ASIC white level detection abnormality
PCU
○
42
Image data trouble (Scanner expansion PWB (ACRE) ASIC)
MFP
○
46
Image data decode error (Scanner expansion PWB (ACRE) ASIC)
MFP
○
47
Combination error between MFP and ACRE firmware (ACRE
ASIC)
ASIC)
MFP
○
48
Scanner expansion PWB (ACRE) ASIC memory error
MFP
○
49
Water Mark data error
MFP
○
50
Combination error between PWB and firmware (PCU PWB detection)
PCU
○
55
PWB information sum error (engine detection)
PCU
○
60
Combination error between PWB and firmware (MFPC PWB detection)
MFP
○
61
Combination error between the MFPC PWB and the PCU PWB
(MFPC PWB detection)
(MFPC PWB detection)
MFP
○
80
MFP - SCU PWB communication error
MFP
○
MX-7500N TROUBLESHOOTING 7 – 7
E7
90
MFP - PCU PWB communication error
MFP
○
92
Copy image data error
MFP
○
93
Copy, image send, filing, print image data process error
MFP
○
94
Image file data process error (when importing file data)
MFP
○
96
MFPC PWB DIMM memory check error
MFP
○
A0
LSU EEPROM/LD driver read/write error (K)
PCU
○
A1
LSU EEPROM/LD driver read/write error (C)
PCU
○
A2
LSU EEPROM/LD driver read/write error (M)
PCU
○
A3
LSU EEPROM/LD driver read/write error (Y)
PCU
○
A5
Installation error of HDD which was used in the mirroring kit
MFP
○
A6
Compact flash memory trouble
○
EE
EC
Automatic toner density adjustment error
PCU
○
EL
Automatic toner density adjustment error (Over toner)
PCU
○
EU
Automatic toner density adjustment error (Under toner)
PCU
○
F0
03
Finisher paper exit roller lift motor section abnormality (FNM110)
PCU
○
08
Finisher stapler shift motor section abnormality (FNM107)
PCU
○
10
Finisher staple motor section abnormality (FNM115)
PCU
○
11
Finisher bundle exit motor section abnormality (FNM116)
PCU
○
14
Finisher paper rear edge falling motor section abnormality (FNM113)
PCU
○
15
Finisher tray lift motor section abnormality (FNM106)
PCU
○
18
Finisher rear edge hold motor section abnormality (FNM118)
PCU
○
19
Finisher paper alignment motor F section abnormality (FNM108)
PCU
○
20
Finisher paper alignment motor R section abnormality (FNM109)
PCU
○
23
Shutter trouble (FNCL102)
PCU
○
25
Finisher paper transport roller lift motor section abnormality (FNM119)
PCU
○
28
Finisher paper alignment roller lift motor section abnormality (FNM112)
PCU
○
29
Finisher PWB cooling fan abnormality (FNFAN102)
PCU
○
30
Communication trouble between the finisher and the saddle
PCU
○
31
Finisher saddle folding motor section abnormality (FSM206)
PCU
○
32
Finisher relay unit transport motor section abnormality (PIM301)
PCU
○
33
Finisher punch shift motor section abnormality (FCM101)
PCU
○
34
Finisher punch motor section abnormality (FCM102
PCU
○
37
Finisher backup RAM trouble
PCU
○
40
Communication trouble between the finisher saddle and the trimmer.
PCU
○
41
Finisher saddle lead edge stopper motor section abnormality (FSM203)
PCU
○
42
Finisher saddle folding roller guide motor section abnormality (FSM204)
PCU
○
43
Finisher saddle alignment motor section abnormality (FSM212)
PCU
○
44
Finisher saddle rear edge hold motor section abnormality (FSM210)
PCU
○
45
Finisher saddle staple motor section abnormality (FSM209)
PCU
○
46
Finisher saddle rear edge shift motor section abnormality (FSM211)
PCU
○
47
Finisher saddle flap motor section abnormality (FSM213)
PCU
○
48
Finisher saddle push motor section abnormality (FSM205)
PCU
○
49
Finisher saddle separation motor section abnormality (FSM214)
PCU
○
51
Finisher trimmer cutter motor abnormality (FTM106)
PCU
○
52
Finisher trimmer registration motor section abnormality (FTM102)
PCU
○
53
Finisher trimmer inlet port separation motor abnormality (FTM103)
PCU
○
54
Finisher trimmer paper exit separation motor section abnormality
(FTM104)
(FTM104)
PCU
○
55
Finisher trimmer bundle press motor section abnormality (FTM105)
PCU
○
56
Paper remaining trouble in the finisher trimmer
PCU
○
60
Communication trouble between the stacker first series and the
downstream units.
downstream units.
PCU
○
61
Stacker first series offset unit abnormality
PCU
○
62
Stacker first series front side jogger abnormality
PCU
○
63
Stacker first series rear side jogger abnormality
PCU
○
64
Stacker first series lead edge jogger abnormality
PCU
○
65
Stacker first series stack tray abnormality
PCU
○
70
Communication trouble between the finisher and the folding unit
PCU
○
71
Folding unit lead edge holding guide motor section abnormality (FLM10)
PCU
○
72
Folding unit backup RAM trouble
PCU
○
73
Folding unit power fan abnormality
PCU
○
74
Folding unit folding tray paper exit motor section abnormality (FLM14)
PCU
○
75
Folding unit upper stopper motor section abnormality (FLM8)
PCU
○
76
3-fold stopper motor section in the folding unit is abnormal (FLM9)
PCU
○
77
Folding unit transport motor section abnormality (FLM11)
PCU
○
80
Finisher power cooling fan motor abnormality (FNFAN101)
PCU
○
81
Finisher upper tray fan abnormality (FNFAN103)
PCU
○
Trouble code
Trouble content
Trouble
detection
Mechanism
Option
Electricity
FAX
Supply
Main
code
code
Sub
code
MX-7500N TROUBLESHOOTING 7 – 8
F0
82
Finisher lower tray fan abnormality (FNFAN104)
PCU
○
83
Finisher paper guide motor section abnormality (FNM120)
PCU
○
84
Finisher grip section abnormality (FNM117)
PCU
○
85
Booklet finisher detection trouble
PCU
○
86
Finisher discharged paper hold motor section abnormality (FNM114)
PCU
○
90
Communication trouble between the stacker second series and the
downstream units
downstream units
PCU
○
91
Stacker second series offset unit abnormality
PCU
○
92
Stacker second series front side jogger abnormality
PCU
○
93
Stacker second series rear side jogger abnormality
PCU
○
94
Stacker second series lead edge jogger abnormality
PCU
○
95
Stacker second series stack tray abnormality
PCU
○
F1
00
Finisher - PCU PWB communication error
PCU
○
21
Abnormality of relay unit fan motor inside the machine (FDCM)
PCU
○
50
Main unit - Finisher combination error
PCU
○
60
Communication trouble between peripheral devices (Inserter detection)
PCU
○
64
No. 1 pickup motor trouble
PCU
○
65
No. 2 pickup motor trouble
PCU
○
66
No. 1 lift motor trouble
PCU
○
67
No. 2 lift motor trouble
PCU
○
90
Communication trouble between the decurler and the downstream units.
PCU
○
96
Decurler transport motor abnormality (DCM100)
PCU
○
97
Decurler unit fan 1 (Upper cooling fan) abnormality (DCFAN100)
PCU
○
98
Decurler unit fan 2 (Lower cooling fan) abnormality (DCFAN103)
PCU
○
99
Decurler unit fan 3 (Transport motor cooling fan) abnormality (DCFAN101)
PCU
○
F2
22
Discharge lamp trouble (K)
PCU
○
23
Discharge lamp trouble (C)
PCU
○
24
Discharge lamp trouble (M)
PCU
○
25
Discharge lamp trouble (Y)
PCU
○
39
Process temperature sensor trouble
PCU
○
40
Toner density sensor trouble (K)
PCU
○
41
Toner density sensor trouble (C)
PCU
○
42
Toner density sensor trouble (M)
PCU
○
43
Toner density sensor trouble (Y)
PCU
○
45
Color image density sensor trouble
PCU
○
49
LSU thermistor trouble
PCU
○
50
K drum phase sensor trouble
PCU
○
51
CL drum phase sensor trouble (C)
PCU
○
52
CL drum phase sensor trouble (M)
PCU
○
53
CL drum phase sensor trouble (Y)
PCU
○
58
Temperature/humidity sensor trouble (HUD_M/TH_M)
PCU
○
64
Toner supply operation trouble (K)
PCU
○
65
Toner supply operation trouble (C)
PCU
○
66
Toner supply operation trouble (M)
PCU
○
67
Toner supply operation trouble (Y)
PCU
○
F2
70
Improper toner cartridge detection (K)
PCU
○
71
Improper toner cartridge detection (C)
PCU
○
72
Improper toner cartridge detection (M)
PCU
○
73
Improper toner cartridge detection (Y)
PCU
○
74
Toner cartridge CRUM error (K)
PCU
○
75
Toner cartridge CRUM error (C)
PCU
○
76
Toner cartridge CRUM error (M)
PCU
○
77
Toner cartridge CRUM error (Y)
PCU
○
78
Registration/BK image density sensor trouble
PCU
○
79
Temperature thermistor of transfer unit trouble
PCU
○
91
High density process control high voltage error (K)
PCU
○
92
High density process control high voltage error (C)
PCU
○
93
High density process control high voltage error (M)
PCU
○
94
High density process control high voltage error (Y)
PCU
○
A0
After-transfer discharge lamp open trouble (K)
PCU
○
A1
After-transfer discharge lamp open trouble (C)
PCU
○
A2
After-transfer discharge lamp open trouble (M)
PCU
○
A3
After-transfer discharge lamp open trouble (Y)
PCU
○
F3
12
Paper feed tray 1 lift operation trouble
PCU
○
22
Paper feed tray 2 lift operation trouble
PCU
○
32
Main body cassette 3 lift trouble
PCU
○
42
Main body cassette 4 lift trouble
PCU
○
FF
00
Double feed detection trouble (PCU)
PCU
○
Trouble code
Trouble content
Trouble
detection
Mechanism
Option
Electricity
FAX
Supply
Main
code
code
Sub
code
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