DOWNLOAD Sharp AR-M351U / AR-M451U (serv.man19) Service Manual ↓ Size: 185.89 KB | Pages: 16 in PDF or view online for FREE

Model
AR-M351U AR-M451U (serv.man19)
Pages
16
Size
185.89 KB
Type
PDF
Document
Service Manual
Brand
Device
Copying Equipment / Trouble Codes
File
ar-m351u-ar-m451u-sm19.pdf
Date

Sharp AR-M351U / AR-M451U (serv.man19) Service Manual ▷ View online

AR-M351U/M451U, AR-M355U/M455U  TROUBLE CODES  11 - 11
U2
11
Content
Counter check sum error (ICU)
Detail
Counter data area check sum error
Cause
EEPROM trouble
Control circuit trouble by noise
ICU PWB EEPROM access circuit 
trouble
Check and 
remedy
Check that EEPROM is properly 
inserted. 
Save the counter/adjustment values 
with the  DIAG simulation.
Use DIAG (SIM16) to cancel U2 
trouble.
Replace the ICU PWB.
12
Content
Adjustment value check sum error 
(ICU)
Detail
Adjustment data area check sum error
Cause
EEPROM trouble
Control circuit trouble by noise
ICU PWB EEPROM access circuit 
trouble
Check and 
remedy
Check that EEPROM is properly 
inserted. 
Save the counter/adjustment values 
with the  simulation.
Use SIM16 to cancel U2 trouble.
Replace the ICU PWB.
22
Content
SRAM memory check sum error (ICU)
Detail
MFPC section SRAM memory check 
sum error
Cause
SRAM trouble
Control circuit runaway due to noises
ICU PWB SRAM access circuit trouble
Check and 
remedy
Initialize the communication 
management table registered in the 
SRAM and the FAX soft switch.
Since the registered data are deleted, 
register the data again.
Use SIM16 to cancel U2 trouble.
Replace the ICU PWB.
23
Content
SRAM memory individual data check 
sum error (ICU)
Detail
Check sum error for every data in the 
SRAM memory of the MFPC section
(Communication management table, 
sender registration data, etc.)
Cause
SRAM trouble
Control circuit runaway due to noises
ICU PWB SRAM access circuit trouble
Check and 
remedy
Automatically initialize the data related 
to the check sum error by turning OFF/
ON the power.
Since the registered data are deleted, 
register the data again.
Use SIM16 to cancel U2 trouble.
Replace the ICU PWB.
MAIN SUB
Details
U2
50
Content
HD section individual data check sum 
error (ICU)
Detail
Check sum error for every individual 
data in HD of the MFPC section (One-
touch, Group, Program, etc.)
Cause
HDD write/read error
Control circuit runaway due to noises
ICU PWB HD access circuit trouble
Check and 
remedy
Automatically initialize the data related 
to the check sum error by turning OFF/
ON the power.
Since the registered data are deleted, 
register the data again.
Use SIM 16 to cancel the U2 trouble.
Replace the HD PWB.
Replace the ICU PWB.
80
Content
EEPROM read/write error (Scanner)
Details
Scanner EEPROM write error
Cause
EEPROM abnormality
Scanner PWB EEPROM access circuit 
abnormality
Check & 
Remedy
Check that EEPROM is set properly.
Record counter/adjustment values with 
the simulation to protect the data from 
being deleted.
Cancel U2 trouble with SIM 16.
Replace scanner PWB.
81
Content
Memory check sum error (Scanner)
Details
Scanner memory check sum error
Cause
EEPROM trouble
EEPROM which is not initialized is 
installed.
Control circuit freeze by noises
Scanner PWB EEPROM access circuit 
trouble
Check & 
Remedy
Check that EEPROM is set properly.
Record counter/adjustment values with 
the simulation to protect the data from 
being deleted.
Cancel U2 trouble with SIM 16.
Replace scanner PWB.
90
Content
EEPROM read/write error (PCU)
Detail
PCU EEPROM write error
Cause
EEPROM trouble
PCU PWB EEPROM access circuit 
trouble
Check and 
remedy
Check that EEPROM is properly 
inserted. 
Record counter/adjustment values with 
the simulation to protect the data from 
being deleted.
Use SIM16 to cancel U2 trouble.
Replace the Controller PWB.
91
Content
Memory check sum error (PCU)
Detail
PCU memory check sum error
Cause
EEPROM trouble
EEPROM which is not initialized is 
installed.
EEPROM is not initialized.
PCU PWB EEPROM access circuit 
trouble
Hang of control circuit due to noises
Check and 
remedy
Check that EEPROM is properly 
inserted. 
Save the counter/adjustment values 
with the simulation.
Use SIM16 to cancel U2 trouble.
Replace the Controller PWB.
MAIN SUB
Details
AR-M351U/M451U, AR-M355U/M455U  TROUBLE CODES  11 - 12
U6
00
Content
Desk/LCC communication trouble
Detail
Desk/LCC communication error
Communication cable test error after 
turning on the power or exiting SIM.
Cause
Improper connection or disconnection 
of connector and harness
Desk control PWB trouble
Control PWB (PCU) trouble
Noise or interference
Check and 
remedy
Canceled by turning OFF/ON the 
power. 
Check connection of the harness and 
connector in the communication line.
01
Content
Desk/LCC No. 1 tray lift-up trouble
Detail
Desk/LCC No. 1 tray lift-up trouble
Cause
Sensor trouble
Tray trouble
Defective connection or disconnection 
between the PWB and the motor.
Desk control PWB trouble
Lift-up motor trouble
Check and 
remedy
Use SIM4-2 to check the upper limit 
sensor detection.
Use SIM4-3 to check the lift-up motor 
operation.
02
Content
Desk No. 2 tray/LCC1 lift-up trouble
Detail
Desk No. 2 tray/LCC lift-up trouble
Cause
Sensor trouble
Tray trouble
Defective connection or disconnection 
between the PWB and the motor.
Desk control PWB trouble
Lift-up motor trouble
Check and 
remedy
Use SIM4-2 to check the upper limit 
sensor detection.
Use SIM4-3 to check the lift-up motor 
operation.
03
Content
Desk No. 3 tray/LCC2 lift-up trouble
Detail
Desk no. 3 tray lift-up trouble
Cause
Sensor trouble
Tray trouble
Defective connection or disconnection 
between the PWB and the motor.
Desk control PWB trouble
Lift-up motor trouble
Check and 
remedy
Use SIM4-2 to check the upper limit 
sensor detection.
Use SIM4-3 to check the lift-up motor 
operation.
10
Content
Desk/LCC transport motor trouble
Detail
Desk/LCC transport motor operation 
trouble
Cause
Motor lock
Drive abnormality
Defective connection or disconnection 
between the PWB and the motor.
Motor rpm abnormality
Overcurrent to the motor
Desk control PWB trouble
Check and 
remedy
Use SIM4-3 to check the transport 
motor operation.
MAIN SUB
Details
U7
00
Content
RIC communication trouble
Detail
RIC communication trouble
Communication cable test error after 
turning on the power or exiting SIM.
Cause
Disconnection of connector and 
harness
RTC control PWB trouble
Control PWB (ICU) trouble
Noise or interference
Check and 
remedy
Canceled by turning OFF/ON the 
power.
Check connector and harness in the 
communication line. 
EE
EL
Content
Auto developer adjustment trouble 
(Over-toner)
Detail
The toner concentration output is 
detected as 1.5V or below in the auto 
development adjustment.
Cause
Toner concentration sensor trouble
Charging voltage, developing voltage 
abnormality
Insufficient toner concentration
Developing unit trouble
PCU PWB trouble
Check and 
remedy
Use SIM25-2 to perform auto 
developer adjustment.
EU
Content
Auto developer adjustment trouble 
(Under-toner)
Detail
The toner concentration output is 
detected as 3.5V or above in the auto 
development adjustment.
Cause
Insufficient toner concentration
Charging voltage, developing voltage 
abnormality
Insufficient toner concentration
Developing unit trouble
PCU PWB trouble
Check and 
remedy
Use SIM25-2 to perform auto 
developer adjustment.
PF
00
Content
RIC copy inhibit signal is received.
Detail
Copy inhibit command from RIM (host) 
is received. 
Cause
Judged by the host.
Check and 
remedy
Inform to the host.
CE
00
Content
Another communication error occurs.
Detail
Communication error
Cause
Improper connection of the network 
cable
Check and 
remedy
Check the connection of the network 
cable.
01
Content
The print server card is broken down or 
is not installed.
Detail
Print server card connection trouble
Cause
The print server card is not installed on 
the controller.
Print server card control PWB trouble
Check and 
remedy
1. Check that the print server card is 
installed on the controller.
2. Output the NIC Config. Page to 
check the NIC version.
3. Replace the NIC.
MAIN SUB
Details
AR-M351U/M451U, AR-M355U/M455U  TROUBLE CODES  11 - 13
CE
02
Content
The specified mail server or FTP server 
is not found.
Detail
The specified mail server or the FTP 
server is not found.
Cause
Improper connection of the network 
cable
Network setup trouble
An error occurs in the SMTP server/ 
FTP server/ NTS.
Check and 
remedy
1. Check that the network cable is 
properly connected.
2. Check that the connected network 
supports TCP/IP protocol.
3. Check from the web page that the 
address of the FTP server or the 
desktop PC is properly set as the 
primary/secondary e-mail server 
address.
4. When the above address is 
described with the Hostname, 
check that the DNS server is 
properly set or not.
5. Check the SMTP server/ FTP 
server/ NTS for any trouble.
03
Content
The specified server suspends 
response during transmission of 
images.
Detail
The specified server suspends 
response during transmission of 
images.
Cause
Improper connection of the network 
cable
An error occurs in the SMTP server/ 
FTP server/ NTS.
Check and 
remedy
1. Check that the network cable is 
properly connected.
2. Check the SMTP server/ FTP 
server/ NTS for any trouble.
04
Content
The account name or the password for 
the FTP server is invalid.
Detail
The entered account name of the FTP 
server or the password for 
authentication is invalid.
Cause
Improper connection of the network 
cable
Improper registration of the account 
name or improper password registered 
in the FTP server as the destination
Check and 
remedy
1. Check that the network cable is 
properly connected.
2. Check the account name or the 
password registered in the FTP 
server as the destination.
05
Content
The directory of the FTP server is 
invalid.
Detail
The entered directory of the FTP server 
is invalid.
Cause
Improper connection of the network 
cable
Check for existence of the directory 
name in the FTP server registered as 
the destination.
Check and 
remedy
1. Check that the network cable is 
properly connected.
2. Check for existence of the directory 
name in the FTP server registered 
as the destination.
MAIN SUB
Details
CE
06
Content
The specified mail server (POP3) is not 
found.
Detail
The specified mail server (POP3) is not 
found.
POP3 server access error
Cause
Improper connection of the network 
cable
Network setup trouble
An error occurs in the POP3 server.
Check and 
remedy
1. Check connection of the network 
cable.
2. Check that the connected network 
supports TCP/IP protocol.
3. Check on the Web page that the 
POP3 server address is correctly 
set.
4. When the above address is 
described with the Hostname, 
check that the DNS server is 
properly set or not.
5. Check for any error in the POP3 
server.
07
Content
The entered account name of the 
POP3 server or the password for 
authentication is invalid.
Detail
The entered account name of the 
POP3 server or the password for 
authentication is invalid.
POP3 server authentication check 
error
Cause
Improper connection of the network 
cable
Improper account name or password 
registered in the POP3 server
Check and 
remedy
1. Check connection of the network 
cable.
2. Check that the account name or the 
password registered for the POP3 
server is correct.
08
Content
The specified mail server (POP3) is not 
found.
Detail
The specified mail server (POP3) is not 
found.
POP3 server time out error
Cause
Improper connection of the network 
cable
An error occurs in the POP3 server.
Check and 
remedy
1. Check connection of the network 
cable.
2. Check for any error in the POP3 
server.
MAIN SUB
Details
AR-M351U/M451U, AR-M355U/M455U  TROUBLE CODES  11 - 14
4. Other related items
(1) Self diag operation
The machine always monitors its own status. When it detects any
abnormality or a status which requires warning, it performs the self
diag operation to display the trouble or warning message as fol-
lows:
(2) Power ON trouble detection function
• When the power is turned on, if the stored trouble is H3, H4, H5,
U1, U2, PF, or U6 (sub code 2, 3), it is immediately judged as a
trouble.
E7-50 and 60 are not judged as a storing trouble, (Detected
every time when the power is turned on.)
(3) Basic flow of countermeasures
Warning
Content
This message is displayed to warn 
mainly the user to inform that a 
consumable part is near life, etc. It is 
no direct relation with machine 
troubles.
Machine 
operation
The machine operation may be 
stopped and may be not.
Message 
clear
The message may be automatically 
cleared by replacement or supply of 
the consumable part, or may be 
cleared by the specified simulation 
operation.
Trouble
Content
This message is a trouble message 
related to a machine trouble.
Machine 
operation
The machine operation is stopped.
Message 
clear
This message may be automatically 
cleared by repairing the trouble, or 
may be cleared by the specified 
simulation operation.
Trouble code
Storing
Trouble cancel command 
simulation
H3, H4, H5
PCU
SIM 14
U1
ICU
SIM 13
U2
Each block
SIM 16
PF
ICU
SIM 17
U6-2, 3
PCU
SIM 15
Troubleshoot the cause.
YES
NO
Detects/analyzes
the content.
Trouble/Warning
Warning
Trouble
The machine is stopped.
The content is displayed.
Trouble/Warning
Warning
A consumable
part has reached
its lifetime.
Trouble
Replace or supply
the consumable part. 
Cancel the self-
diagnostic message with
the diagnostics
(test commands). 
Reset
Standby state
Monitors the machine
conditions.
Repair
Page of 16
Display

Click on the first or last page to see other AR-M351U / AR-M451U (serv.man19) service manuals if exist.