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AR-M550/M620  SELF DIAG MESSAGE AND TROUBLESHOOTING  9 - 6

F6

97

FAX-BOX incompatibility trouble

FAX

●

F6

98

Combination error of the FAX-BOX destination 
information and the machine destination 
information

FAX

●

F7

01

FAX board EEPROM read/write error

FAX

●

H2

00

Thermistor open (HL1)

PCU

●

H2

01

Thermistor open (HL2)

PCU

●

H2

02

Thermistor open (HL3)

PCU

●

H3

00

Heat roller high temperature detection (HL1)

PCU

●

H3

01

Heat roller high temperature detection (HL2)

PCU

●

H3

02

Heat roller high temperature detection (HL3)

PCU

●

H4

00

Heat roller low temperature detection (HL1)

PCU

●

H4

01

Heat roller low temperature detection (HL2)

PCU

●

H4

02

Heat roller low temperature detection (HL3)

PCU

●

H5

01

5-time continuous POD not-reached JAM 
detection

PCU

●

L1

00

Scanner feed trouble

Scanner

●

L3

00

Scanner return trouble

Scanner

●

L4

01

Main motor lock detection

PCU

●

L4

02

Drum motor lock detection

PCU

●

L4

03

Fusing motor lock detection

PCU

●

L4

04

Developing motor lock detection

PCU

●

L4

06

Transfer belt separation motor trouble

PCU

●

L4

30

Controller fan motor trouble

MFP control

●

L4

31

Paper discharging fan trouble

MFP control

●

L6

10

Polygon motor lock detection

PCU

●

L8

01

No full wave signal 

PCU

●

PC

–

Personal counter uninstalled

MFP control

PF

00

RIC copy inhibit command receive

MFP control

●

U1

01

FAX battery abnormality

MFP control

●

U1

02

RTC read error (combined use as FAX, on MFP 
control PWB)

MFP control

●

U2

00

EEPROM read/write error (MFP control)

MFP control

●

U2

11

Counter check sum error (MFP control EEPROM)

MFP control

●

U2

12

Adjustment value check sum error (MFP control 
EEPROM)

MFP control

●

U2

22

MFPC section SRAM memory check sum error

MFP control

●

U2

23

MFPC section SRAM memory individual data 
check sum error

MFP control

●

U2

50

HDD section individual data check sum error

MFP control

●

U2

80

Scanner section EEPROM read/write error

Scanner

●

U2

81

Scanner section memory sum check error

Scanner

●

U2

90

PCU section EEPROM read/write error

PCU

●

U2

91

PCU section memory sum check error

PCU

●

U5

30

SPF tray lift-up trouble

Scanner

●

U5

31

SPF tray lift-down trouble

Scanner

●

U6

09

LCC lift motor trouble

PCU

●

U6

20

LCC communication trouble

PCU

●

U6

21

LCC transport motor trouble

PCU

●

U6

22

LCC 24V power abnormality addition

PCU

●

U7

00

PC/Modem communication trouble

MFP control

●

– –

–

Auditor NOT READY

MFP control

Trouble code

Trouble content

Remarks

Trouble 

detection

Mechanism

Option Electricity FAX Supply

Main 
code

Sub 

code

AR-M550/M620  SELF DIAG MESSAGE AND TROUBLESHOOTING  9 - 7

Main 
code

Sub 

code

Title

Phenomenon

Display

Lamp

Message

Details

MC trouble
Three successive MHV-T 
signals are detected 
during operation of MHV.
Main charger output 
abnormality (Output 
open)
A trouble signal is 
outputted from the high 
voltage transformer.

Section

Engine

Operation 
mode
Note 

Case 1

Trouble 
position/
Cause

The main charger is not 
installed properly.
The main charger is not 
assembled properly.

Remedy

Use SIM 8-2 to check the 
main charger output.
Main charger 
disconnection check

Note 

Case 2

Trouble 
position/
Cause

The high voltage 
transformer connector is 
disconnected.
The high voltage harness 
is disconnected or 
broken.

Remedy

Connection check

Note 

Case 3

Trouble 
position/
Cause

High voltage unit trouble

Remedy

Replace the high voltage 
unit.

Note 

Main 
code

Sub 

code

Title

Phenomenon

Display

Lamp

Message

Details

Communication error

Section

Operation 
mode

Note 

Case 1

Trouble 
position/
Cause

Improper connection of 
the network cable

Remedy

Check the connection of 
the network cable.

Note 

Main 
code

Sub 

code

Title

Phenomenon

Display

Lamp

Message

Details

Network card connection 
trouble

Section
Operation 
mode
Note 

Case 1

Trouble 
position/
Cause

The network card is not 
installed on the controller.

Remedy

Check that the network 
card is installed on the 
controller.

Note 

Case 2

Trouble 
position/
Cause

Network card control 
PWB trouble

Remedy

1. Output the NIC Config. 

Page to check the NIC 
version.

2. Replace the NIC.

Note 

Main 
code

Sub 

code

Title

Phenomenon

Display

Lamp

Message

Details

The specified mail server 
or the FTP server is not 
found.

Section
Operation 
mode
Note 

Case 1

Trouble 
position/
Cause

Improper connection of 
the network cable

Remedy

Check that the network 
cable is properly 
connected.

Note 

Case 2

Trouble 
position/
Cause

Network setup trouble

Remedy

1. Check that the 

connected network 
supports TCP/IP 
protocol.

2. As Primary/Secondary 

E-mail Server Address 
or Destination from 
Web Page

3. When the above 

address is described 
with the Hostname, 
check that the DNS 
server is properly set 
or not.

Note 

AR-M550/M620  SELF DIAG MESSAGE AND TROUBLESHOOTING  9 - 8

Case 3

Trouble 
position/
Cause

An error occurs in the 
SMTP server/ FTP 
server/ NTS.

Remedy

Check the SMTP server/ 
FTP server/ NTS for any 
trouble.

Note 

Main 
code

Sub 

code

Title

Phenomenon

Display

Lamp

Message

Details

The specified server 
suspends response 
during transmission of 
images.

Section
Operation 
mode
Note 

Case 1

Trouble 
position/
Cause

Improper connection of 
the network cable

Remedy

Check that the network 
cable is properly 
connected.

Note 

Case 2

Trouble 
position/
Cause

An error occurs in the 
SMTP server/ FTP 
server/ NTS.

Remedy

Check the SMTP server/ 
FTP server/ NTS for any 
trouble.

Note 

Main 
code

Sub 

code

Title

Phenomenon

Display

Lamp
Message

Details

The entered account 
name of the FTP server 
or the password for 
authentication is invalid.

Section
Operation 
mode
Note 

Case 1

Trouble 
position/
Cause

Improper connection of 
the network cable

Remedy

Check that the network 
cable is properly 
connected.

Note 

Case 2

Trouble 
position/
Cause

Improper registration of 
the account name or 
improper password 
registered in the FTP 
server as the destination

Remedy

Check the account name 
or the password 
registered in the FTP 
server as the destination.

Note 

Main 
code

Sub 

code

Title

Main 
code

Sub 

code

Title

Phenomenon

Display

Lamp
Message

Details

The entered directory of 
the FTP server is invalid.

Section
Operation 
mode
Note 

Case 1

Trouble 
position/
Cause

Improper connection of 
the network cable

Remedy

Check that the network 
cable is properly 
connected.

Note 

Case 2

Trouble 
position/
Cause

Check for existence of 
the directory name in the 
FTP server registered as 
the destination.

Remedy

Check for existence of 
the directory name in the 
FTP server registered as 
the destination.

Note 

Main 
code

Sub 

code

Title

Phenomenon

Display

Lamp
Message

Details

The specified mail server 
(POP3) is not found.
POP3 server access error

Section
Operation 
mode
Note 

Case 1

Trouble 
position/
Cause

Improper connection of 
the network cable

Remedy

Check connection of the 
network cable.

Note 

Case 2

Trouble 
position/
Cause

Network setup trouble

Remedy

1. Check that the 

connected network 
supports TCP/IP 
protocol.

2. Check on the Web 

page that the POP3 
server address is 
correctly set.

3. When the above 

address is described 
with the Hostname, 
check that the DNS 
server is properly set 
or not.

Note 

Case 3

Trouble 
position/
Cause

An error occurs in the 
POP3 server.

Remedy

Check for any error in the 
POP3 server.

Note 

AR-M550/M620  SELF DIAG MESSAGE AND TROUBLESHOOTING  9 - 9

Main 
code

Sub 

code

Title

Phenomenon

Display

Lamp

Message

Details

The entered account 
name of the POP3 server 
or the password for 
authentication is invalid.
POP3 server 
authentication check 
error

Section

Operation 
mode

Note 

Case 1

Trouble 
position/
Cause

Improper connection of 
the network cable

Remedy

Check connection of the 
network cable.

Note 

Case 2

Trouble 
position/
Cause

Improper account name 
or password registered in 
the POP3 server

Remedy

Check that the account 
name or the password 
registered for the POP3 
server is correct.

Note 

Main 
code

Sub 

code

Title

Phenomenon

Display

Lamp

Message

Details

The specified mail server 
(POP3) suspends 
response.
POP3 server time-out 
error

Section
Operation 
mode
Note 

Case 1

Trouble 
position/
Cause

Improper connection of 
the network cable

Remedy

Check connection of the 
network cable.

Note 

Case 2

Trouble 
position/
Cause
Remedy

An error occurs in the 
POP3 server.

Note 

Check for any error in the 
POP3 server.

Main 
code

Sub 

code

Title

Phenomenon

Display

Lamp
Message

Details

CIS shading trouble 
(White correction)
When the power is 
turned on or when the 
proper gain setup value 
is not obtained with SIM 
63-2 CIS shading (Retry 
number: 256 times):
CIS white reference plate 
scan level is abnormal 
when the lamp is lighted.

Section

Scanner

Operation 
mode

Note 

Case 1

Trouble 
position/
Cause

Defective installation of 
the harness to the CIS 
unit
CIS unit abnormality

Remedy

CIS unit harness check

Note 

Case 2

Trouble 
position/
Cause

Reference white plate 
dirt

Remedy

Clean the reference 
white plate.

Note 

Case 3

Trouble 
position/
Cause

CIS lighting trouble

Remedy

Use SIM 5-3 to check the 
light quantity of CIS.

Note 

Case 4

Trouble 
position/
Cause

Scanner PWB 
abnormality

Remedy

Scanner PWB check

Note 

Main 
code

Sub 

code

Title

Phenomenon

Display

Lamp

Message

Details

CIS communication 
trouble
When an error occurs in 
an access check to the 
CIS-ASIC on turning on 
the power or closing the 
DSFP cover. (Retry 
number: 5 times)
Communication trouble 
between the scanner 
PWB and the CIS-ASIC. 
(Clock synchronization)

Section

Scanner

Operation 
mode

Note