DOWNLOAD Sharp MX-6500N / MX-7500N (serv.man21) Service Manual ↓ Size: 561.77 KB | Pages: 66 in PDF or view online for FREE

Model
MX-6500N MX-7500N (serv.man21)
Pages
66
Size
561.77 KB
Type
PDF
Document
Service Manual
Brand
Device
Copying Equipment / Section 7 Troubleshooting
File
mx-6500n-mx-7500n-sm21.pdf
Date

Sharp MX-6500N / MX-7500N (serv.man21) Service Manual ▷ View online

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)
PCU
02
Non-contact thermistor upper sub detection thermistor open 
(TH_US1_AD2)
PCU
03
Non-contact thermistor upper main compensation thermistor open 
(TH_UM_CS)
PCU
04
Non-contact thermistor lower main compensation thermistor open 
(TH_LM1_AD1)
PCU
05
Non-contact thermistor upper sub compensation thermistor open 
(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
Sub 
code
MX-7500N  TROUBLESHOOTING  7 – 10
U2
00
MFP EEPROM read/write error
MFP
05
Erroneous detection of account management data
MFP
11
MFPC PWB EEPROM counter check sum error
MFP
30
MFPC PWB and PCU PWB manufacturing No. data inconsistency
MFP
40
SD card system storage data area error
MFP
41
HDD system storage data area error
MFP
42
Machine adjustment data (system storage data area) error
MFP
50
HDD user authentication data check sum error
MFP
60
Watermark check error
MFP
80
SCU PWB EEPROM read/write error
SCU
81
SCU PWB EEPROM check sum error
SCU
90
PCU PWB EEPROM read/write error
PCU
91
PCU PWB EEPROM check sum error
PCU
U5
00
Document feed unit communication error
SCU
16
Document feed unit fan trouble
SCU
30
Document feed unit tray lift up trouble
SCU
31
Document feed unit tray lift down trouble
SCU
U6
09
LCC lift motor trouble
PCU
20
LCC control PWB - PCU PWB communication error
PCU
21
LCC transport motor trouble
PCU
22
LCC 24V power abnormality
PCU
23
A3 LCC tray descending trouble (Reverse winding detection) (A3 LCC)
PCU
24
A3 LCC tray lock detection trouble
PCU
29
LCT1 lift trouble
PCU
33
LCT2 reverse winding detection trouble
PCU
34
LCT2 lock detection trouble
PCU
39
LCT2 lift trouble
PCU
43
LCT3 reverse winding detection trouble
PCU
44
LCT3 lock detection trouble
PCU
49
LCT3 lift trouble
PCU
51
LCC - Main unit combination trouble
PCU
53
Communication trouble between LCT’s
PCU
54
Option installation combination trouble
PCU
63
Manual feed tray descending trouble
PCU
68
Manual feed tray paper feed position abnormality
PCU
69
Manual feed tray lift trouble
PCU
73
LCT4 reverse winding detection trouble
PCU
74
LCT4 lock detection trouble
PCU
79
LCT4 lift trouble
PCU
80
Relay unit transport motor trouble
PCU
81
Power unit cooling fan motor trouble 
PCU
82
EEPROM trouble 
PCU
83
Room temperature thermistor breakdown 
PCU
84
Room humidity thermistor breakdown 
PCU
85
Transport motor 1 trouble (2 series)
PCU
86
24V power trouble (2 series)
PCU
87
Power unit cooling fan motor trouble (2 series)
PCU
88
EEPROM trouble (2 series)
PCU
89
Room temperature thermistor breakdown (2 series)
PCU
90
Room humidity thermistor breakdown (2 series)
PCU
U7
50
MFPC PWB - Vendor machine communication error
MFP
51
Vendor machine error
MFP
U9
01
Touch panel trouble
SCU
UC
02
CPT - ASIC error
SCU
12
CPT - ASIC abnormal trouble (DSPF detection)
SCU
20
DOCC ASIC error
SCU
30
Anti-copy MODULE trouble (DSPF detection)
SCU
Trouble code
Trouble content
Trouble 
detection
Mechanism
Option
Electricity
FAX
Supply
Main 
code
Sub 
code
MX-7500N  TROUBLESHOOTING  7 – 11
G. Details of error codes and countermeasures
 
A0-01
PCU PWB ROM error
 
A0-02
SCU PWB ROM error
 
A0-04
Scanner expansion PWB (ACU) 
(ACRE) ROM error
 
A0-10
Color profile error
UE
 
10
LCT1 suction fan motor trouble
PCU
11
LCT1 exhaust fan motor trouble
PCU
12
LCT1 warm air heater thermistor open
PCU
13
LCT1 warm air heater thermistor low temperature trouble
PCU
14
LCT1 warm air heater thermistor high temperature trouble
PCU
15
LCT1 warm air outlet port thermistor open
PCU
16
LCT1 warm air outlet port thermistor low temperature
PCU
17
LCT1 warm air outlet port thermistor high temperature
PCU
20
LCT2 suction fan motor trouble
PCU
21
LCT2 exhaust fan motor trouble
PCU
22
LCT2 warm air heater thermistor open
PCU
23
LCT2 warm air heater thermistor low temperature trouble
PCU
24
LCT2 warm air heater thermistor high temperature trouble
PCU
25
LCT2 warm air outlet port thermistor open
PCU
26
LCT2 warm air outlet port thermistor low temperature
PCU
27
LCT2 warm air outlet port thermistor high temperature
PCU
30
LCT3 suction fan motor trouble
PCU
31
LCT3 exhaust fan motor trouble
PCU
32
LCT3 warm air heater thermistor open
PCU
33
LCT3 warm air heater thermistor low temperature trouble
PCU
34
LCT3 warm air heater thermistor high temperature trouble
PCU
35
LCT3 warm air outlet port thermistor open
PCU
36
LCT3 warm air outlet port thermistor low temperature
PCU
37
LCT3 warm air outlet port thermistor high temperature
PCU
40
LCT4suction fan motor trouble
PCU
41
LCT4 exhaust fan motor trouble
PCU
42
LCT4 warm air heater thermistor open
PCU
43
LCT4 warm air heater thermistor low temperature trouble
PCU
44
LCT4 warm air heater thermistor high temperature trouble
PCU
45
LCT4 warm air outlet port thermistor open
PCU
46
LCT4 warm air outlet port thermistor low temperature
PCU
47
LCT4 warm air outlet port thermistor high temperature
PCU
Trouble code
Trouble content
Trouble 
detection
Mechanism
Option
Electricity
FAX
Supply
Main 
code
Sub 
code
Detail
MFP
Cause
The firmware version-up is not completed properly by 
interruption of the power during the version-up 
operation, etc. PCU PWB trouble.
Check & Remedy
Use SIM49-1 to perform the firmware version-up 
procedure again.Replace the PCU PWB.
Detail
MFP
Cause
The firmware version-up is not completed properly by 
interruption of the power during the version-up 
operation, etc. SCU PWB trouble.
Check & Remedy
Use SIM49-1 to perform the firmware version-up 
procedure again.
Replace the SCU PWB.
Trouble content
Detail
MFP
Cause
Scanner expansion PWB (ACU) (ACRE) ROM data 
error.
An error occurs during firmware upgrading for some 
reasons.
Check & Remedy
Perform firmware upgrading again.
Trouble content
Color profile error
Detail
MFP
Cause
The content of the color profile is abnormal.
Combination error between the MFPC PWB firmware 
and the color profile
Check & Remedy
Upgrade the firmware collectively.
Replace the MFPC PWB.
MX-7500N  TROUBLESHOOTING  7 – 12
 
A0-15
Incompatible DSK BOOT and program
firmware
 
A0-17
Inconsistency between the UI data
and the CPU firmware version
 
A0-20
Conflict firmware and EEPROM data
version (MFP)
 
A0-21
Conflict firmware and EEPROM data
version (PCU)
 
A0-22
Conflict firmware and EEPROM data
version (SCU)
 
C1-01
Charger cleaner trouble (K)
 
C1-03
Charger cleaner trouble (C)
Trouble content
Detail
MFP
Cause
Installation of the normal firmware was performed with 
a security kit enable.
Check & Remedy
Stop installation of the normal firmware.
Trouble content
Detail
MFP
Cause
Combination error between the UI contents data and 
the CPU UI firmware version.
Check & Remedy
Install the firmware in the all-firmware version-up 
mode.
Trouble content
Detail
MFP
Cause
Inconsistency between the MFP firmware version and 
the EEPROM data version.
Check & Remedy
Check the combination of the firmware.
Trouble content
Detail
PCU
Cause
Inconsistency between the PCU firmware version and 
the EEPROM data version.
Check & Remedy
Check the combination of the firmware.
Trouble content
Detail
SCU
Cause
Inconsistency between the SCU firmware version and 
the EEPROM data version.
Check & Remedy
Check the combination of the firmware.
Trouble content
Detail
PCU
Cause
The main charger unit (K) is not installed properly.
There is an abnormality in the main charger unit (K).
Connector connection trouble of the drum unit (K) HP 
sensor, the discharge lamp, or the after-transfer 
discharge lamp.
Harness disconnection of the drum unit (K) HP 
sensor, the discharge lamp, or the after-transfer 
discharge lamp.
HP sensor dirt.
Charger cleaner motor (K) trouble.
PCU PWB connector connection trouble/PWB trouble.
Check & Remedy
Use SIM6-4 to check the operation of the charger 
cleaner.
Check disconnection of the main charger unit./
Replace.
Check for disconnection of the connector of the drum 
unit (K) HP sensor, the discharge lamp, and the after-
transfer discharge lamp.
Check the harness of the drum unit (K) HP sensor, the 
discharge lamp, and the after-transfer discharge lamp. 
(Since the earth wire is common to them, check the 
three positions.)
Clean the HP sensor.
Check disconnection of the PCU PWB connector./
Replace PWB.
Replace the charger cleaner motor (K).
Trouble content
Detail
PCU
Cause
The main charger unit (C) is not installed properly.
There is an abnormality in the main charger unit (C).
Connector connection trouble of the drum unit (C) HP 
sensor, the discharge lamp, or the after-transfer 
discharge lamp.
Harness disconnection of the drum unit (C) HP 
sensor, the discharge lamp, or the after-transfer 
discharge lamp.
HP sensor dirt.
Charger cleaner motor (C) trouble.
PCU PWB connector connection trouble/PWB trouble.
Check & Remedy
Use SIM6-4 to check the operation of the charger 
cleaner.
Check disconnection of the main charger unit./
Replace.
Check for disconnection of the connector of the drum 
unit (C) HP sensor, the discharge lamp, and the after-
transfer discharge lamp.
Check the harness of the drum unit (C) HP sensor, the 
discharge lamp, and the after-transfer discharge lamp. 
(Since the earth wire is common to them, check the 
three positions.)
Clean the HP sensor.
Check disconnection of the PCU PWB connector./
Replace PWB.
Replace the charger cleaner motor (C).
Page of 66
Display

Click on the first or last page to see other MX-6500N / MX-7500N (serv.man21) service manuals if exist.