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AR-C260/C260M  TROUBLESHOOTING  11 - 1

In case of a trouble in the machine, or when a consumable part has
nearly reached or already reach the lifetime, the machine detects it,
analyze it, and displays it on the display section and notifies the user
and the serviceman by a voice message.

The user and the serviceman are bale to perform the proper counter-
measures according to a voice message. In case of a trouble, the
machine is stopped to restrict damage to a minimum in addition to a
voice message.

1) Assures safety. (The machine is stopped when a trouble is

detected.)

2) Restricts damage to a minimum. (The machine is stopped when a

trouble is detected.)

3) By displaying the trouble content, the trouble position can be iden-

tified immediately and accurately. (An accurate repair work can be
performed, improving the repair efficiency.)

4) By providing a preparatory warning when the lifetime of a consum-

able part is nearly reached, arrangement of the consumable part
can be made in advance. (Stopping the machine by exhaustion of
a consumable part is avoidable.)

The self diagnostic messages are classified as follows:

The machine always monitors its own status. 

When the machine detects a trouble, it stops operations and displays a
trouble message. 

A warning message is provided mainly when a consumable part is
nearly or completely exhausted. 

When a warning message is provided, the machine may be stopped or
may not be stopped depending on the message.

The trouble and warning messages are indicated with the LCD and
lamps. 

Some trouble messages may be automatically cleared after removing
the trouble, and some must be cleared with the simulation.

Some warning messages of consumable parts are automatically
cleared when the trouble is repaired. Some other warning messages
must be cleared by a simulation.

Class 1

User

Troubles and warning messages (paper jam, 
consumable part life expiration, etc.) which 
can be processed by the user 

Service

Troubles and warning messages (motor 
trouble, maintenance, etc.) which can be 
processed only by a serviceman

Other

—

Class 2

Warning

Warning messages (consumable part life 
expiration, etc.) for the user, which are not 
directly related to any machine trouble. 

Trouble

Related to a machine trouble. The machine is 
stopped. 

Other

—

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

AR-C260/C260M  TROUBLESHOOTING  11 - 2

Model

Main 
code

Sub 

code

Content

AR-C260
AR-C260M

C2

10

Image density sensor error/Transfer 
charger error (Black)

E7

01

Image data memory trouble

10

Shading trouble (Black correction)

11

Shading trouble (White correction)

20

LED controller initial trouble (Black)

21

LED controller initial trouble (Cyan)

22

LED controller initial trouble (Magenta)

23

LED controller initial trouble (Yellow)

24

LED controller output trouble (Black)

25

LED controller output trouble (Cyan)

26

LED controller output trouble (Magenta)

27

LED controller output trouble (Yellow)

28

LED control ASIC connection 
abnormality

40

Color correction data writing abnormality

41

Color correction data transfer 
abnormality

80

ICU-SCN communication trouble (ICU 
detection)

90

ICU-PCU communication trouble (ICU 
detection)

F1

00

Finisher communication trouble (PCU 
detection)

02

Finisher transport motor trouble 
(Finisher detection)

03

Finisher paddle motor trouble

06

Finisher slide motor trouble

10

Finisher staple motor abnormality 
(Finisher detection)

11

Finisher bundle process motor 
abnormality (Finisher detection)

15

Finisher tray lift motor abnormality 
(Finisher detection)

19

Finisher front alignment motor 
abnormality (Finisher detection)

20

Finisher rear alignment motor 
abnormality (Finisher detection)

31

Finisher fold sensor trouble

32

Finisher punch unit communication 
trouble

33

Finisher punch side registration motor 
trouble

34

Finisher punch motor trouble

35

Finisher punch side registration sensor 
trouble

36

Finisher punch registration sensor 
trouble

37

Finisher/sorter backup RAM trouble

38

Finisher punch backup RAM trouble

39

Finisher punch dust sensor trouble

40

Finisher punch power disconnection 
trouble

83

Sorter guide bar oscillation motor (M3) 
lock

89

Sorter bin shift motor lock (M1)

91

Sorter bin paper sensor automatic 
adjustment trouble

AR-C260
AR-C260M

F2

15

Drum unit initial detection trouble (Black)

16

Drum unit initial detection trouble (Cyan)

17

Drum unit initial detection trouble 
(Magenta)

18

Drum unit initial detection trouble 
(Yellow)

19

Transfer unit initial detection trouble

39

Process thermistor breakdown

40

Toner empty sensor abnormality (Black)

41

Toner empty sensor abnormality (Cyan)

42

Toner empty sensor abnormality 
(Magenta)

43

Toner empty sensor abnormality 
(Yellow)

44

Black image density sensor trouble 
(Transfer belt surface reflection ratio 
abnormality)

45

Color image density sensor trouble 
(Calibration plate surface reflection ratio 
abnormality)

58

Process humidity sensor breakdown

70

Developing unit improper cartridge 
detection (Black)

71

Developing unit improper cartridge 
detection (Cyan)

72

Developing unit improper cartridge 
detection (Magenta)

73

Developing unit improper cartridge 
detection (Yellow)

74

Developing unit CRUM trouble (Black)

75

Developing unit CRUM trouble (Cyan)

76

Developing unit CRUM trouble 
(Magenta)

77

Developing unit CRUM trouble (Yellow)

78

Trouble of image density sensor for 
registration (Transfer belt surface 
reflection ratio abnormality)

80

Half-tone process control 1st batch error 
(Black)

81

Half-tone process control 1st batch error 
(Cyan)

82

Half-tone process control 1st batch error 
(Magenta)

83

Half-tone process control 1st batch error 
(Yellow)

84

Half-tone process control 2nd batch 
error (Black)

85

Half-tone process control 2nd batch 
error (Cyan)

86

Half-tone process control 2nd batch 
error (Magenta)

87

Half-tone process control 2nd batch 
error (Yellow)

90

Half-tone process control limit error

F3

12

Cassette 1 lift up trouble

F9

00

ICU-PRT communication trouble (ICU 
detection)

01

PRT DRAM trouble

02

NIC port check error

20

HDD trouble (PRT controller detection)

H2

00

Thermistor open (HL1)

01

Thermistor open (HL2)

H3

00

Fusing section high temperature trouble 
(HL1)

01

Fusing section high temperature trouble 
(HL2)

Model

Main 
code

Sub 

code

Content

AR-C260/C260M  TROUBLESHOOTING  11 - 3

AR-C260
AR-C260M

H4

00

Fusing section low temperature trouble 
(HL1)

01

Fusing section low temperature trouble 
(HL2)

H5

01

Five continuous detections of POD1 not-
reached jam

H8

01

Fusing unit initial detection trouble

L1

00

Mirror feed trouble

L3

00

Mirror return trouble

L4

02

Paper feed motor lock trouble

06

Transfer belt lift motor trouble

07

Transfer belt motor trouble

11

Shift motor trouble

L8

01

Full wave signal not provided

02

Full wave signal width abnormality

04

Main power switch abnormality 
detection

PF

00

RIC copy inhibit signal reception 

U0

00

ICU-OPE communication trouble (ICU/
OPE detection)

U1

02

RTC read trouble

U2

00

EEPROM read/write error (ICU 
detection)

11

EEPROM check sum error (ICU 
detection)

30

Production No. data discrepancy 
(ICU 

⇔

 ICU)

80

EEPROM read/write error (SCN 
detection)

81

EEPROM check sum error (SCN 
detection)

90

EEPROM read/write error (PCU 
detection)

91

EEPROM check sum error (PCU 
detection)

U4

02

ADU alignment plate operation 
abnormality

U5

00

ADF communication trouble

01

ADF resist sensor defect

02

ADF repulsion sensor defect

03

ADF timing sensor defect

11

Paper feed motor operation abnormality

U6

00

Desk communication trouble

01

Desk tray 1 lift motor trouble

02

Desk tray 2 lift motor trouble

03

Desk tray 3 lift motor trouble

10

Desk transport motor trouble

U7

00

RIC communication trouble

Model

Main 
code

Sub 

code

Content

Main 
code

Sub 

code

Title

Display

Lamp/Message

Phenomenon

Detail

Black image density 
sensor trouble /Transfer 
trouble (Black) /The 
deference between the 
transfer belt surface 
detection level and the 
black toner patch density 
detection level is normal. 
(Judged in black image 
density sensor calibration)

Section

Transfer

Case 1

Cause

Black image density 
sensor trouble

Check & 
Remedy

Black density image 
sensor cleaning, 
replacement

Case 2

Cause

Transfer voltage trouble

Check & 
Remedy

Check and adjust the 
transfer voltage. 

Case 3

Cause

High voltage PWB trouble

Check & 
Remedy

Replace the high voltage 
PWB.

Case 4

Cause

Transfer unit trouble

Check & 
Remedy

Check the transfer belt 
surface for dirt and 
scratches.
Replace the transfer belt, 
replace the cleaning blade, 
replace the transfer unit.

Case 5

Cause

PCU PWB trouble

Check & 
Remedy

PCU PWB replacement

Case 6

Cause

Photoconductor unit 
trouble

Check & 
Remedy

Replace the 
photoconductor unit.

Case 7

Cause

Developing unit trouble

Check & 
Remedy

Replace the developing 
unit

Case 8

Cause

Connector, harness 
trouble (PCU PWB, high 
voltage PWB, image 
density sensor, 
photoconductor unit, 
transfer unit, developing 
unit)

Check & 
Remedy

Check contact. Replace 
the harness. Replace the 
PWB. 

AR-C260/C260M  TROUBLESHOOTING  11 - 4

Main 
code

Sub 

code

Title

Display

Lamp/Message

Phenomenon

Detail

The ICU image data 
memory (SDRAM) cannot 
be detected as 256MB or 
more. The required 
SDRAM capacity for the 
model is not provided.

Section

ICU PWB

Case 1

Cause

The SDRAM of ICU PWB 
is not installed. The 
SDRAM of ICU PWB is 
improperly installed. 

Check & 
Remedy

Check installation of the 
SDRAM of ICU ASIC PWB.

Case 2

Cause

The SDRAM of ICU PWB 
does not operate properly. 

Check & 
Remedy

Use SIM 60-01 to check 
the capacity of the 
SDRAM. Replace the 
SDRAM of ICU PWB.

Case 3

Cause

ICU PWB abnormality

Check & 
Remedy

Replace the ICU PWB.

Main 
code

Sub 

code

Title

Display

Lamp/Message

Phenomenon

Detail

CCD black reading level 
abnormality when the copy 
lamp is off. 

Section

CCD unit

Case 1

Cause

Improper installation of the 
flat cable to the CCD unit.

Check & 
Remedy

Check installation of the 
flat cable to the CCD unit.

Case 2

Cause

CCD unit abnormality

Check & 
Remedy

Check the CCD unit.

Case 3

Cause

MFP PWB abnormality

Check & 
Remedy

Check the MFP PWB. 

Main 
code

Sub 

code

Title

Display

Lamp/Message

Phenomenon

Detail

CCD white reading level 
abnormality when the copy 
lamp is off. 

Section

CCD unit

Case 1

Cause

Improper installation of the 
flat cable to the CCD unit.

Check & 
Remedy

Check installation of the 
flat cable to the CCD unit.

Case 2

Cause

Dirt on the mirror, the lens, 
or the reference white plate.

Check & 
Remedy

Clean the mirror, the lens, 
or the reference white 
plate.

Case 3

Cause

CCD unit abnormality

Check & 
Remedy

Check the CCD unit.

Case 4

Cause

MFP PWB abnormality

Check & 
Remedy

Check the MFP PWB. 

Main 
code

Sub 

code

Title

Display

Lamp/Message

Phenomenon

Detail

The initial process of the 
LED controller cannot be 
completed properly. 

Section

LED/ICU PWB

Case 1

Cause

Disconnection of the LED 
head connector.

Check & 
Remedy

Check connection of the 
LED head connector.

Case 2

Cause

Disconnection of the 
harness inside the LED 
head.

Check & 
Remedy

Replace the LED head 
unit.

Case 3

Cause

ICU PWB abnormality

Check & 
Remedy

Replace the ICU PWB. 

Main 
code

Sub 

code

Title

Display

Lamp/Message

Phenomenon

Detail

The initial process of the 
LED controller cannot be 
completed properly. 

Section

LED/ICU PWB

Case 1

Cause

Disconnection of the LED 
head connector.

Check & 
Remedy

Check connection of the 
LED head connector

Case 2

Cause

Disconnection of the 
harness inside the LED 
head.

Check & 
Remedy

Replace the LED head 
unit.

Case 3

Cause

ICU PWB abnormality

Check & 
Remedy

Replace the ICU PWB. 

Main 
code

Sub 

code

Title

Display

Lamp/Message

Phenomenon

Detail

The initial process of the 
LED controller cannot be 
completed properly. 

Section

LED/ICU PWB

Case 1

Cause

Disconnection of the LED 
head connector.

Check & 
Remedy

Check connection of the 
LED head connector

Case 2

Cause

Disconnection of the 
harness inside the LED 
head.

Check & 
Remedy

Replace the LED head 
unit.

Case 3

Cause

ICU PWB abnormality

Check & 
Remedy

Replace the ICU PWB.