Sharp MX-6500N / MX-7500N (serv.man21) Service Manual ▷ View online
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
MX-7500N TROUBLESHOOTING 7 – 9
H2
00
Thermistor open trouble (TH_UM_AD2)
PCU
○
01
Non-contact thermistor lower main detection thermistor open
(TH_LM1_AD2)
(TH_LM1_AD2)
PCU
○
02
Non-contact thermistor upper sub detection thermistor open
(TH_US1_AD2)
(TH_US1_AD2)
PCU
○
03
Non-contact thermistor upper main compensation thermistor open
(TH_UM_CS)
(TH_UM_CS)
PCU
○
04
Non-contact thermistor lower main compensation thermistor open
(TH_LM1_AD1)
(TH_LM1_AD1)
PCU
○
05
Non-contact thermistor upper sub compensation thermistor open
(TH_US1_AD1)
(TH_US1_AD1)
PCU
○
06
Upper edge section thermistor open (TH_US2)
PCU
○
07
Lower edge section thermistor open (TH_LM2)
PCU
○
H3
00
Fusing section high temperature trouble (TH_UM)
PCU
○
01
Fusing section high temperature trouble (TH_LM)
PCU
○
02
Fusing section high temperature trouble (TH_US)
PCU
○
H4
00
Lower main thermistor differential input abnormality (TH_LM1)
PCU
○
01
Fusing section low temperature trouble (TH_LM)
PCU
○
02
Fusing section low temperature trouble (TH_US)
PCU
○
30
Upper main thermistor differential input abnormality (TH_UM)
PCU
○
31
Lower main thermistor differential input abnormality (TH_LM1)
PCU
○
32
Upper sub thermistor differential input abnormality (TH_US1)
PCU
○
H5
01
5 times continuous POD1 not-reach jam
PCU
○
H7
10
Recovery error from low fuser temp. (TH_UM_AD2)
PCU
○
11
Recovery error from low fuser temp. (TH_LM)
PCU
○
L1
00
Scanner feed trouble
SCU
○
L2
11
Lamp cooling fan motor trouble
SCU
○
L3
00
Scanner return trouble
SCU
○
L4
02
Paper feed motor trouble
PCU
○
03
Fusing motor trouble
PCU
○
06
Transfer unit lift trouble
PCU
○
07
Transfer belt motor trouble
PCU
○
08
Waste toner transport motor lock
PCU
○
16
Fusing pressure release trouble
PCU
○
17
Drum motor lock trouble (K)
PCU
○
L4
18
Drum motor lock trouble (C)
PCU
○
19
Drum motor lock trouble (M)
PCU
○
20
Drum motor lock trouble (Y)
PCU
○
25
2nd transfer belt motor trouble
PCU
○
28
Sub power source cooling fan motor
MFP
○
30
Controller fan motor
MFP
○
31
Paper exit cooling fan F trouble
PCU
○
32
Power source cooling fan 1 trouble
PCU
○
34
LSU cooling fan trouble
PCU
○
35
Paper exit exhaust fan trouble
PCU
○
36
Fusing cooling fan trouble
PCU
○
39
Machine ventilation fan (R)
PCU
○
40
Ozone fan motor 1 trouble
PCU
○
41
Ozone fan motor 2 trouble
PCU
○
42
Ozone fan motor 3 trouble
PCU
○
43
Paper exit cooling fan R trouble
PCU
○
44
Power source cooling fan 2 trouble
PCU
○
48
ADU transport cooling fan motor F trouble
PCU
○
49
ADU transport cooling fan motor R trouble
PCU
○
57
Toner bottle cooling fan motor trouble
PCU
○
60
Fusing pressure roller cooling fan motor F trouble
PCU
○
61
Fusing pressure roller cooling fan motor R trouble
PCU
○
63
2nd transfer belt skew correction motor trouble
PCU
○
L6
10
Polygon motor trouble
PCU
○
L8
01
Full wave signal detection error
PCU
○
02
Full wave signal error
PCU
○
11
AC Cord 2 (power for fusing) full wave not detected
PCU
○
12
AC Cord 2 (power for fusing) full wave signal width abnormality
PCU
○
20
Communication error of MFPC PWB/SCN mother board
MFP
○
PC
-
Personal counter not detected
MFP
○
U1
01
Battery trouble
MFP
○
Trouble code
Trouble content
Trouble
detection
Mechanism
Option
Electricity
FAX
Supply
Main
code
code
Sub
code
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