MX-M350N, MX-M350U, MX-M450N, MX-M450U (serv.man8). Trouble Codes — Sharp Copying Equipment Service Manual (repair manual)

Model
MX-M350N MX-M350U MX-M450N MX-M450U (serv.man8)
Pages
15
Size
202.95 KB
Type
PDF
Document
Service Manual
Brand
Device
Copying Equipment / Trouble Codes
File
mx-m350n-mx-m350u-mx-m450n-mx-m450u-sm8.pdf
Date

View Sharp MX-M350N / MX-M350U / MX-M450N / MX-M450U (serv.man8) Service Manual online

MX-M350/M450 N/U  TROUBLE CODES  11 - 1
[11] TROUBLE CODES
1. General
When a trouble occurs in the machine or when the life of a con-
sumable part is nearly expired or when the life is expired, the
machine detects and displays it on the display section. This allows
the user and the serviceman to take the suitable action. In case of
a trouble, this feature notifies the occurrence of a trouble and
stops the machine to minimize the damage.
1) Securing safety. (The machine is stopped on detection of a
trouble.)
2) The damage to the machine is minimized. (The machine is
stopped on detection of a trouble.)
3) By displaying the trouble content, the trouble position can be
quickly identified. (This allows to perform an accurate repair,
improving the repair efficiency.)
4) Preliminary warning of running out of consumable parts allows
to arrange for new parts in advance of running out. (This
avoids stopping of the machine due to running out the a con-
sumable part.)
2. Trouble codes list
Trouble 
codes
Contents
Remark
Trouble 
detection
C1
00 MC trouble
PCU
E6
11 CSI shading trouble (White 
correction)
When the 
scanner is 
installed
SCANNER
14 CIS communication trouble
When the 
scanner is 
installed
SCANNER
E7
01 System data trouble
ICU
02 Laser trouble
PCU
03 HDD trouble
With HDD 
installed
ICU
06 Decode error trouble
ICU
10 Shading trouble (Black 
correction)
When the 
scanner is 
installed
SCANNER
11 Shading trouble (White 
correction all pixel 
adjustment)
When the 
scanner is 
installed
SCANNER
14 CCD communication trouble
When the 
scanner is 
installed
SCANNER
17 SPF scanning position 
adjustment trouble (Detected 
only when executing an 
adjustment SIM.)
50 LSU connection trouble
PCU
60 Controller skating trouble
80 Communication trouble (ICU 
detection) between ICU and 
scanner
When the 
scanner is 
installed
ICU
90 Communication trouble (ICU 
detection) between ICU and 
PCU
When the 
scanner is 
installed
ICU
F1
00 Finisher communication 
trouble
With 
Finisher 
installed
PCU
Mail-bin stacker 
communication trouble
With Mail 
bin stacker 
installed
PCU
F1
02 Finisher transport motor 
abnormality
With 
Finisher 
installed
PCU
Mail-bin stacker transport 
motor abnormality
With Mail 
bin stacker 
installed
03 Console finisher paddle 
motor trouble
With Console 
Finisher 
installed
PCU
06 Console finisher slide motor 
trouble
With Console 
Finisher 
installed
PCU
08 Finisher staple shift motor 
trouble
With 
Finisher 
installed
PCU
10 Finisher stapler motor trouble With 
Finisher 
installed
PCU
Console finisher stapler 
motor trouble
With Console 
Finisher 
installed
PCU
11 Finisher bundle exit motor 
trouble
With Finisher 
installed
PCU
Console finisher bundle exit 
motor trouble
With Console 
Finisher 
installed
PCU
12 Mail-bin stacker gate trouble
With Mail 
bin stacker 
installed
PCU
15 Finisher lift motor trouble
With 
Finisher 
installed
PCU
Console finisher lift motor 
trouble
With Console 
Finisher 
installed
PCU
19 Finisher front alignment 
motor trouble
With 
Finisher 
installed
PCU
Console finisher front 
alignment motor trouble
With Console 
Finisher 
installed
PCU
20 Finisher rear alignment 
motor trouble
With 
Finisher 
installed
PCU
Console finisher rear 
alignment motor trouble
With Console 
Finisher 
installed
PCU
30 Console finisher 
communication trouble
With Console 
Finisher 
installed
PCU
31 Console finisher fold sensor 
trouble
With Console 
Finisher 
installed
PCU
32 Communication trouble 
between the console finisher 
and the punch unit.
With Console 
Finisher 
installed
PCU
33 Console finisher punch side 
registration motor trouble
With Console 
Finisher 
installed
PCU
34 Console finisher punch motor 
trouble
With Console 
Finisher 
installed
PCU
35 Console finisher punch side 
registration sensor trouble
With Console 
Finisher 
installed
PCU
Trouble 
codes
Contents
Remark
Trouble 
detection
MX-M350/M450 N/U  TROUBLE CODES  11 - 2
F1
36 Console finisher punch 
timing sensor trouble
With Console 
Finisher 
installed
PCU
37 Console finisher backup 
RAM trouble
With Console 
Finisher 
installed
PCU
38 Console finisher punch 
backup RAM trouble
With Console 
Finisher 
installed
PCU
39 Console finisher punch dust 
sensor trouble
With Console 
Finisher 
installed
PCU
40 Console finisher punch 
power interruption trouble
With Console 
Finisher 
installed
PCU
80 Finisher power abnormality
With Finisher 
installed
PCU
Mail-bin stacker power 
abnormality
With Mail bin 
stacker 
installed
PCU
81 Console finisher transport 
motor abnormality
With Console 
Finisher 
installed
PCU
87 Finisher staple rotation motor 
trouble
With Finisher 
installed
F2
00 Toner control sensor open/
sensor trouble
PCU
02 Toner supply abnormality
PCU
04 Improper cartridge (life cycle 
error, etc.)
PCU
05 CRUM error
PCU
06 CRUM ID error
PCU
39 Process thermistor trouble
PCU
F3
12 Machine no. 1 tray lift-up 
trouble
PCU
22 Machine tray 2 lift-up trouble Multi-
purpose tray
PCU
F6
00 Communication trouble (ICU 
detection) between ICU and 
FAX
When the 
Fax board is 
installed
ICU
01 FAX expansion flash memory 
abnormality (ICU detection)
When the 
Fax board is 
installed
ICU
04 FAX modem operation 
abnormality
When the 
Fax board is 
installed
FAX
20 FAX write protect cancel
When the 
Fax board is 
installed
FAX
21 Combination abnormality of 
the TEL/LIU PWB and the 
FAX soft switch
When the 
Fax board is 
installed
FAX
97 FAX-BOX skating trouble
When the 
Fax board is 
installed
FAX
98 Combination error of the 
FAX-BOX destination 
information and the machine 
destination information
When the 
Fax board is 
installed
FAX
F7
01 FAX board EEPROM read/
write error
When the 
Fax board is 
installed
FAX
H2
00 Thermistor open (HL1)
PCU
01 Thermistor open (HL2)
PCU
Trouble 
codes
Contents
Remark
Trouble 
detection
H3
00 Fusing section high 
temperature trouble (HL1)
PCU
01 Fusing section high 
temperature trouble (HL2)
PCU
H4
00 Fusing section low 
temperature trouble (HL1)
PCU
01 Fusing section low 
temperature trouble (HL2)
PCU
H5
01 5-time continuous POD1 not-
reaching jam detection
PCU
L1
00 Scanner feed trouble
When the 
scanner is 
installed
SCANNER
L3
00 Scanner return trouble
When the 
scanner is 
installed
SCANNER
L4
01 Main motor lock detection
PCU
02 Drum motor lock detection
PCU
30 Controller fan motor lock 
detection
L6
10 Polygon motor lock detection
PCU
L8
01 No fullwave signal
PCU
02 Full wave signal width 
abnormality
PCU
U1
01 FAX battery abnormality
With FAX 
board 
installed
Controller
02 RTC read abnormality 
(common with FAX, on ICU 
PWB)
When the 
Fax board is 
installed
ICU
U2
00 EEPROM read/write error 
(ICU)
Controller
11 Counter check sum error 
(ICU)
Controller
12 Adjustment value check sum 
error (ICU)
Controller
22 SRAM memory check sum 
error (ICU)
ICU
23 SRAM memory individual 
data check sum error (ICU)
50 HD section individual data 
check sum error (ICU)
80 EEPROM read/write error 
(Scanner)
When the 
scanner is 
installed
SCANNER
81 Memory check sum error 
(Scanner)
When the 
scanner is 
installed
SCANNER
90 EEPROM read/write error 
(PCU)
PCU
91 Memory check sum error 
(PCU)
PCU
U6
00 Desk/LCC communication 
trouble
With Paper 
feed desk 
installed
PCU
01 Desk/LCC No. 1 tray lift-up 
trouble
With Paper 
feed desk 
installed
PCU
02 Desk No. 2 tray/LCC1 lift-up 
trouble
With Paper 
feed desk 
installed
PCU
03 Desk No. 3 tray/LCC2 lift-up 
trouble
With Paper 
feed desk 
installed
PCU
10 Desk/LCC transport motor 
trouble
With Paper 
feed desk 
installed
PCU
Trouble 
codes
Contents
Remark
Trouble 
detection
MX-M350/M450 N/U  TROUBLE CODES  11 - 3
3. Details of trouble codes
U7
00 RIC communication trouble
Controller
CH
--
Door open (CH ON)
PCU
00 No developer cartridge
PCU
01 No toner cartridge
PCU
02 No drum cartridge
PCU
EE EL Auto developer adjustment 
trouble (Over-toner)
Only during 
DIAG
PCU
EU Auto developer adjustment 
trouble (Under-toner)
Only during 
DIAG
PCU
PC
--
Personal counter not 
installed
Controller
PF
--
RIC copy inhibit signal is 
received.
Controller
--
--
Auditor not ready
Controller
MAIN SUB
Details
C1
00
Content
MC trouble
Detail
Main charger output abnormality 
(Output open)
Trouble signal is outputted from the 
high voltage transformer.
Cause
The main charger is not installed 
properly.
The main charger is not assembled 
properly.
Disconnection of connector of high 
voltage transformer.
High voltage harness disconnection or 
breakage.
Check and 
remedy
Use the SIM 8-2 to check the main 
charger output.
Check for disconnection of the main 
charger. 
Replace the high voltage unit. 
E6
11
Content
CSI shading trouble (White correction)
Details
The CIS white reference plate scan 
level is abnormal when the lamp is on.
Cause
Abnormal harness installation to CIS 
unit
Dirt on the white reference plate.
CIS lighting error
CIS unit installation trouble
CIS unit abnormality
Scanner PWB abnormality
Check & 
Remedy
Clean the white reference plate. 
Check CIS light quantity (SIM 5-3) and 
lighting. 
Check CIS unit harness.
Check scanner PWB. 
14
Content
CIS communication trouble
Details
Communication trouble (clock sync) 
between scanner PWB and CIS-ASIC
Cause
Abnormal harness installation to CIS 
unit
CIS unit abnormality
Scanner PWB abnormality
Check & 
Remedy
Check CIS unit harness.
Check CIS unit.
Check scanner PWB. 
Trouble 
codes
Contents
Remark
Trouble 
detection
E7
01
Content
System data trouble
Detail
When in data storage/acquiring of the 
HDD system area, the HDD responds 
an error and does not respond for 
30sec, it is judged as a trouble.
Cause
The HDD is not properly installed to the 
ICU PWB.
The HDD does not work for the ICU 
PWB.
ICU PWB abnormality
Check and 
remedy
Check installation of the HDD to the 
ICU PWB.
Check harness connection of the HDD 
from the ICU PWB.
Use SIM62-2, 3 to check the HDD 
read/write.
Replace the HDD.
Replace the ICU PWB.
E7
02
Content
Laser trouble
Detail
BD signal from LSU is kept OFF, or ON.
Cause
The connector of LSU or the harness in 
LSU is disconnected or broken.
The polygon motor does not rotate 
normally.
The laser home position sensor in LSU 
is shifted.
The proper voltage is not supplied to 
the power line for laser.
Laser emitting diode trouble
PCU PWB trouble
ICU PWB trouble
Check and 
remedy
Check for disconnection of the LSU 
connector.
Use SIM 61-1 to check LSU operation.
Check that the polygon motor rotates 
normally or not.
Check light emission of laser emitting 
diode.
Replace the LSU unit.
Replace the PCU PWB.
Replace the ICU PWB.
03
Content
HDD trouble
Detail
HDD connection failure
If the HDD responds an error or does 
not respond for 30sec, it is judged as 
an error. (Other than the system area)
Data abnormality in the file 
management area (when the cluster 
chain is broken)
Cause
HDD is not installed properly to the ICU 
PWB.
HDD does not operate properly in the 
ICU PWB.
ICU PWB trouble
Check and 
remedy
Check installation of HDD to the ICU 
PWB.
Check connection of the harness of 
HDD to the ICU PWB. 
Use SIM 62-2, -3 to check read/write of 
HDD.
Replace HDD.
Replace ICU PWB. 
MAIN SUB
Details
MX-M350/M450 N/U  TROUBLE CODES  11 - 4
E7
06
Content
Decode error trouble
Detail
A decode error occurs during making of 
an image.
Cause
Data error during input from PCI to PM.
PM trouble
Data error during image compression/
transfer.
ICU PWB abnormality
Check and 
remedy
Check insertion of the PWB. (PCI bus)
If the error occurred in a FAX job, check 
installation of the FAX PWB. 
For the other cases, check the ICU 
PWB. 
Replace the ICU PWB. 
10
Content
Shading trouble (Black correction)
Details
CCD black scan level abnormality 
when the copy lamp is off.
Cause
Abnormal installation of flat cable to 
CCD unit.
CCD unit abnormality
Scanner PWB abnormality
Check & 
Remedy
Check installation of CCD unit flat 
cable. 
Check CCD unit.
Check scanner PWB. 
11
Content
Shading trouble
 
(White correction all 
pixel adjustment)
Details
CCD white reference plate scan level 
abnormality when the copy lamp is ON.
Cause
Abnormal installation of flat cable to 
CCD unit.
Dirt on mirror, lens, white reference 
plate
Copy lamp lighting abnormality
Abnormal installation of CCD unit
CCD unit abnormality
Scanner PWB abnormality
Check & 
Remedy
Clean mirror, lens, and white reference 
plate.
Check copy lamp light quantity (SIM 5-
3) and lighting. 
Check CCD unit.
Check scanner PWB. 
14
Content
CCD communication trouble
Details
Communication trouble (clock sync) 
between scanner PWB and CCD-ASIC
Cause
Abnormal installation of harness to 
CCD unit
CCD unit abnormality
Scanner PWB abnormality
Check & 
Remedy
Check CCD unit harness.
Check CCD unit.
Check scanner PWB. 
17
Content
SPF scanning position adjustment 
trouble (Detected only when executing 
an adjustment SIM.)
Details
The black Mylar which serves as the 
reference of the SPF scanning position 
is not detected.
Cause
Black Mylar installing failure on the 
SPF side
Check & 
Remedy
Check the SPF black Mylar.
MAIN SUB
Details
E7
50
Content
LSU connection trouble
Detail
An LSU which does not conform to the 
machine is installed. 
Cause
LSU connection trouble
PCU PWB trouble
LSU trouble
Check and 
remedy
Check LSU PWB. Check PCU PWB.
Check connection of the connector and 
the harness between PCU and LSU.
60
Content
Controller skating trouble
Detail
Occurrence of an error in controller 
skating check
Cause
Discrepancy in the combination of the 
controller PWB and the ROM
Check and 
remedy
Check the controller PWB. 
Check the combination of the controller 
PWB and the ROM. 
80
Content
Communication trouble (ICU detection) 
between ICU and scanner
Details
Communication establishment error/
Fleming/Parity/Protocol error
Cause
Defective connection of slave unit PWB 
connector
Defective harness between slave unit 
PWB and ICU PWB
Slave unit PWB mother board 
connector pin breakage
Check & 
Remedy
Check connector and harness of slave 
unit PWB and ICU PWB.
Check grounding of machine.
90
Content
Communication trouble (ICU detection) 
between ICU and PCU
Details
Communication establishment error/
Fleming/Parity/Protocol error
Cause
Defective connection of slave unit PWB 
connector
Defective harness between slave unit 
PWB and ICU PWB
Slave unit PWB mother board 
connector pin breakage
Check & 
Remedy
Check connector and harness of slave 
unit PWB and ICU PWB.
Check grounding of machine.
F1
00
Content
Finisher communication trouble
Detail
Communication cable test error after 
turning on the power or exiting from 
SIM.
Communication error with the finisher
Cause
Improper connection or disconnection 
of connectors and harness between 
the machine and the finisher.
Finisher control PWB trouble
Control PWB (PCU) trouble
Malfunction by noises
Check and 
remedy
Canceled by turning OFF/ON the 
power.
Check connectors and harness in the 
communication line. 
Replace the finisher control PWB or 
PCU PWB.
MAIN SUB
Details
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Here you can view online or download Sharp MX-M350N / MX-M350U / MX-M450N / MX-M450U (serv.man8) Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Sharp MX-M350N / MX-M350U / MX-M450N / MX-M450U (serv.man8) Copying Equipment. Information contained in Sharp MX-M350N / MX-M350U / MX-M450N / MX-M450U (serv.man8) service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).