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MX-4100N MX-4101N MX-5000N MX-5001N (serv.man15)
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Service Manual
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Copying Equipment / Service Manual-Section 7-Self Diag and Trouble Code
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mx-4100n-mx-4101n-mx-5000n-mx-5001n-sm15.pdf
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Sharp MX-4100N / MX-4101N / MX-5000N / MX-5001N (serv.man15) Service Manual ▷ View online

MX-4101N  SELF DIAG AND TROUBLE CODE  7 – 5
E7
61
Combination error between the MFP PWB and the PCU PWB
MFP
{
65
MFP EEPROM sum check error
MFP
{
80
MFP-SCU PWB communication error
MFP
{
90
MFP-PCU PWB communication error
MFP
{
EE
EC
Automatic toner density adjustment error (Sampling level 76 - 117/ 139 - 178)
PCU
{
EL
Automatic toner density adjustment error (Overtoner)
PCU
{
EU
Automatic toner density adjustment error (Undertoner)
PCU
{
F1
00
Finisher - PCU PWB communication error
PCU
{
03
Finisher paper exit roller lifting operation trouble
PCU
{
08
Stapler shift trouble
PCU
{
10
Staple operation trouble
PCU
{
11
Finisher grip operation trouble
PCU
{
15
Finisher paper exit tray lift operation trouble
PCU
{
19
Finisher alignment operation trouble F
PCU
{
20
Finisher alignment operation trouble R
PCU
{
21
Finisher fan trouble
PCU
{
22
Finisher assist motor trouble
PCU
{
23
Finisher shutter trouble
PCU
{
31
Saddle paper folding trouble
PCU
{
32
Finisher - Punch unit communication error
PCU
{
33
Punch unit shift operation trouble
PCU
{
34
Punch operation trouble
PCU
{
36
Punch paper edge detection error
PCU
{
37
Finisher data backup RAM error
PCU
{
38
Punch data backup RAM error
PCU
{
39
Punch paper dust sensor error
PCU
{
41
Saddle paper positioning operation trouble
PCU
{
43
Saddle alignment operation trouble
PCU
{
45
Saddle staple trouble
PCU
{
47
Saddle paper transport motor trouble
PCU
{
50
Main unit - Finisher combination error
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 thermister trouble
PCU
{
40
Toner density sensor trouble (BLACK)
PCU
{
41
Toner density sensor trouble (CYAN)
PCU
{
42
Toner density sensor trouble (MAGENTA)
PCU
{
43
Toner density sensor trouble (YELLOW)
PCU
{
45
Color image density sensor trouble
PCU
{
49
LSU thermister trouble
PCU
{
50
K drum phase sensor trouble
PCU
{
51
CL drum phase sensor trouble
PCU
{
58
Process humidity sensor trouble
PCU
{
64
Toner supply operation trouble (BK)
PCU
{
65
Toner supply operation trouble (C)
PCU
{
66
Toner supply operation trouble (M)
PCU
{
67
Toner supply operation trouble (Y)
PCU
{
70
Improper toner cartridge detection (BLACK)
PCU
{
71
Improper toner cartridge detection (CYAN)
PCU
{
72
Improper toner cartridge detection (MAGENTA)
PCU
{
73
Improper toner cartridge detection (YELLOW)
PCU
{
74
Black CRUM error
PCU
{
75
Cyan CRUM error
PCU
{
76
Magenta CRUM error
PCU
{
77
Yellow CRUM error
PCU
{
78
Registration image density sensor trouble (Transfer belt substrate reflection rate 
abnormality)
PCU
{
F3
12
Paper feed tray 1 lift operation trouble
PCU
{
22
Paper feed tray 2 lift operation trouble
PCU
{
H2
00
Thermister open trouble (TH_UM_AD2)
PCU
{
01
Thermister open trouble (TH_LM)
PCU
{
03
Compensation thermister open trouble (TH_UM_AD1)
PCU
{
04
External heating thermistor open (TH_EX1)
PCU
{
05
External heating thermistor open (TH_EX2)
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
{
Trouble code
Trouble code content
Trouble 
detection
Mecha
nism
Option
Electri
city
FAX
Supply
Main 
code
Sub 
code
M X-4101N  SELF DIAG  AND TRO UBLE CO DE  7 – 6
H3
04
Fusing section high temperature trouble (TH_EX1)
PCU
{
05
Fusing section high temperature trouble (TH_EX2)
PCU
{
H4
00
Fusing section low temperature trouble (TH_UM_AD2)
PCU
{
01
Fusing section low temperature trouble (TH_LM)
PCU
{
04
Low temperature trouble (TH_EX)
PCU
{
05
External heating thermistor open (TH_EX2)
PCU
{
30
Thermister input circuit trouble (TH_UM)
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
{
14
Recovery error from low fuser temp. (TH_EX)
PCU
{
L1
00
Scanner feed trouble
SCU
{
L3
00
Scanner return trouble
SCU
{
L4
02
Paper feed motor trouble
PCU
{
03
Fusing motor trouble
PCU
{
04
Developing motor trouble (BLACK)
PCU
{
05
Developing motor trouble (COLOR)
PCU
{
06
Transfer unit lift trouble
PCU
{
11
Shift motor trouble
PCU
{
16
Fusing pressure release trouble
PCU
{
30
MFP fan motor trouble
MFP
{
31
Paper exit cooling fan trouble
PCU
{
32
Power source cooling fan trouble
PCU
{
34
LSU cooling fan trouble
PCU
{
35
Fusing cooling fan trouble
PCU
{
45
Toner cooling fan trouble (Toner cooling fan 1, 2)
PCU
{
50
Process fan trouble
PCU
{
56
Rear cooling fan trouble
PCU
{
57
Toner cooling fan trouble (Toner cooling fan 3)
PCU
{
58
Ozone exhaust fan trouble
PCU
{
L6
10
Polygon motor trouble
PCU
{
L8
01
Full wave signal detection error
PCU
{
02
Full wave signal error
PCU
{
20
Communication error of MFP/Mother board
MFP
{
PC
-
Personal counter not detected
MFP
{
U1
01
Battery trouble
MFP
{
U2
00
MFP EEPROM read/write error
MFP
{
05
HDD/MFP PWB SRAM contents inconsistency
MFP
{
10
SRAM user authentication index checksum error
MFP
{
11
MFP PWB EEPROM counter check sum error
MFP
{
22
MFP PWB SRAM memory check sum error
MFP
{
23
MFP PWB SRAM memory individual data check sum error
MFP
{
24
MFP PWB SRAM memory user authentication counter check sum error
MFP
{
30
MFP PWB and PCU PWB manufacturing No. data inconsistency
MFP
{
50
HDD user authentication data check sum error
MFP
{
60
Water Mark 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
{
40
Document feed unit installation trouble
SCU
{
U6
00
Communication error of PCU/Desk paper feed unit
PCU
{
01
Desk paper feeding tray 1 lift trouble
PCU
{
02
Desk paper feeding tray 2 lift trouble
PCU
{
09
LCC lift trouble
PCU
{
10
Desk paper feed unit paper transport motor trouble
PCU
{
20
PCU PWB - LCC communication error
PCU
{
21
LCC paper transport motor trouble
PCU
{
22
LCC 24V power trouble
PCU
{
50
Mismatched Desk unit
PCU
{
51
LCC - Main unit combination trouble
PCU
{
U7
50
MFP PWB - Vendor machine communication error
MFP
{
51
Vendor machine error
MFP
{
UC
02
CPT - ASIC error
SCU
{
20
DOCC ASIC error
SCU
{
Trouble code
Trouble code content
Trouble 
detection
Mecha
nism
Option
Electri
city
FAX
Supply
Main 
code
Sub 
code
MX-4101N  SELF DIAG AND TROUBLE CODE  7 – 7
3.  Details of trouble code
 
C1-10
Main charger trouble (BK)
 
C1-14
Main charger trouble (Color)
 
C4-00
PTC trouble
 
C4-02
PTC heater open trouble
A0
01
PCU PWB ROM error
MFP
{
02
SCU PWB ROM error
MFP
{
04
ACU ROM error
MFP
{
10
MFP PWB ROM error
MFP
{
11
Firmware version inconsistency (MFP - PCU)
MFP
{
12
Firmware version inconsistency (MFP - SCU)
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
{
Trouble code
Trouble code content
Trouble 
detection
Mecha
nism
Option
Electri
city
FAX
Supply
Main 
code
Sub 
code
Trouble content
Detail
PCU
Cause
The main charger unit (BK) is not installed properly.
There is an abnormality in the main charger unit.
Disconnection of the high voltage PWB connector.
Breakage of the high voltage harness.
MC/DV PWB trouble.
PCU PWB trouble
Check & Remedy
Check the output of the main charger with SIM8-2.
Check disconnection of the main charger./Replace.
Check disconnection of the high voltage PWB. 
connector. /Replace.
Replace the MC/DV PWB.
Replace the PCU PWB.
Trouble content
Detail
PCU
Cause
The main charger unit (CMY) is not installed 
properly.
There is an abnormality in the main charger.
Disconnection of the high voltage PWB connector.
Breakage of the high voltage harness.
MC/DV PWB trouble.
PCU PWB trouble
Check & Remedy
Check the output of the main charger with SIM8-2.
Check disconnection of the main charger./Replace.
Check disconnection of the high voltage PWB 
connector. /Replace.
Replace the MC/DV PWB.
Replace the PCU PWB.
Trouble content
Detail
PCU
Cause
The PTC unit is not properly installed.
PTC unit trouble.
Secondary transfer PWB trouble.
PCU PWB trouble.
Connector, harness connection trouble.
Check & Remedy
Replace the PTC unit.
Replace the secondary transfer PWB.
Replace the PCU PWB.
Check connection of the connector and the harness.
NOTE: 
When the PTC unit is broken down and repair cannot 
be made because of no replacement part:
To use the machine continuously, make the setting to 
ignore the PTC trouble, and the machine can be 
operated tentatively.
Set the engine soft SW8-3 in SIM55-1 to  "1".
This setting disables the PTC output, the heater 
control, and the error detection.
After completion of repair, set the engine soft SW8-3 
in SIM55-1 to "0".
Trouble content
Detail
PCU
Cause
The PTU unit is not installed, or the eater line 
conduction trouble.
PCU PWB trouble.
Connector, harness connection trouble.
Check & Remedy
Replace the PTC unit.
Replace the PCU PWB.
Check connection of the connector and the harness.
NOTE: 
When the PTC unit is broken down and repair cannot 
be made because of no replacement part:
To use the machine continuously, make the setting to 
ignore the PTC trouble, and the machine can be 
operated tentatively.
Set the engine soft SW8-3 in SIM55-1 to  "1".
This setting disables the PTC output, the heater 
control, and the error detection.
After completion of repair, set the engine soft SW8-3 
in SIM55-1 to "0".
MX-4101N  SELF DIAG AND TROUBLE CODE  7 – 8
 
C4-03
PTC heater short trouble
 
C4-10
PTC no control
 
E6-10
Shading error (Black correction)
 
E6-11
Shading error (White correction)
 
E6-14
CCD-ASIC error
 
E7-01
MFP image data error
 
E7-03
HDD trouble
 
E7-04
HDD-ASIC error
 
E7-05
Standard/Extension memory R/W 
error (MFP PWB)
 
E7-06
Image data decode error
Trouble content
Detail
PCU
Cause
PTC unit trouble.
PCU PWB trouble.
Connector, harness connection trouble.
Check & Remedy
Replace the PTC unit.
Replace the PCU PWB.
Check connection of the connector and the harness.
NOTE: 
When the PTC unit is broken down and repair cannot 
be made because of no replacement part:
To use the machine continuously, make the setting to 
ignore the PTC trouble, and the machine can be 
operated tentatively.
Set the engine soft SW8-3 in SIM55-1 to  "1".
This setting disables the PTC output, the heater 
control, and the error detection.
After completion of repair, set the engine soft SW8-3 
in SIM55-1 to "0".
Trouble content
Detail
PCU
Cause
The engine soft SW8-3 in SIM55-1 is set to "1".
The PTC control is not executed. (The PTC does not 
operate.)
When the engine soft SW8-3 in SIM55-1 is set to  
"1", the PTC output, the heater control, and the error 
detection are disabled. When this setting is made in 
case of a PTC unit trouble, the PTC function is 
disabled regardless of the PTC trouble and printing 
operation can be performed.
Check & Remedy
Set the engine soft SW8-3 in SIM55-1 to "0". 
(The mode returns to the normal PTC control mode.)
Trouble content
Detail
SCU
Cause
Installation error of the CCD unit harness.
CCD unit trouble.
DSPF PWB trouble.
Check and remedy
Check the installing state of the harness to the CCD 
unit.
Check the CCD unit.
Check the DSPF PWB.
Trouble content
Detail
SCU
Cause
Installation error of the CCD unit harness.
Copy lamp lighting trouble.
Dirt on the mirror, the lens, or the reference white 
plate.
CCD unit trouble.
DSPF PWB trouble.
Shading SIM not executed / Shading ROM 
abnormality.
Check and remedy
Check the installing state of the harness the CCD 
unit.
Check the installing state of the harness to the copy 
lamp unit.
Clean the mirror, the lens, or the reference white 
plate.
Check the CCD unit.
Check the DSPF PWB.
Trouble content
Detail
SCU
Cause
DSPF PWB trouble.
Check and remedy
Check the DSPF PWB.
Trouble content
Detail
MFP
Cause
Image data transfer error in the MFP PWB. 
MFP PWB trouble.
Check & Remedy
Check connection of the connector and the harness 
of the MFP PWB.
Replace the MFP PWB.
Trouble content
Detail
MFP
Cause
Connector, harness connection trouble in the MFP 
PWB and HDD.
HDD (error file management area) data abnormality 
(FAT breakage).
MFP PWB trouble.
Check & Remedy
Check connection of the connector and the harness 
of the MFP PWB  and HDD.
Use SIM62-2,3 to check read/write operations of the 
HDD.
Replace the HDD.
Replace the MFP PWB.
Trouble content
Detail
MFP
Cause
HDD-ASIC trouble.
An error occurs in the HDD-ASIC self test when 
booting.
Check & Remedy
Replace the MFP PWB.
Trouble content
Memory access is disabled.
Detail
MFP
Cause
Improper insertion of the memory.
Garbled memory data.
The memory capacity is not the specified level.
Check & Remedy
Check insertion of the memory.
Use SIM60-1 to check the read/write operations of 
the memory.
Replace the expansion memory.
Replace the MFP PWB.
Trouble content
Detail
MFP
Cause
Compressed image data abnormality.
HDD connection trouble when HDD is installed.
Image data compression/transfer data garble.
MFP PWB trouble.
Check & Remedy
If the job at an occurrence of an error is a FAX job, 
check the FAX PWB.
Check connection of the MFPC PWB and the HDD.
Replace the MFPC PWB.
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