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Main 

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Sub

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Title (Content)

Section 

Operation mode

Remedy

NOTE

H6

0

Fusing oil empty (Oil sensor trouble)

Fusing

All modes

Power
Source-ON

H7

0

AC input voltage (HLV) trouble 

Power source

All modes

Power
Source-ON

L1

0

Scanner feed trouble

Scanner (reading)

Initialize  / Copy

Power
Source-ON

L3

0

Scanner return trouble

Scanner (reading)

Initialize / Copy

Power
Source-ON

L4

3

Fusing motor trouble

Fusing

Warm-up / Copy/
Print

Power
Source-ON

L4

4

Developing motor trouble (BLACK)

Developing drive

Warm-up / Copy/
Print

Power
Source-ON

L4

5

Developing motor trouble (COLOR)

Developing drive

Warm-up / Copy /
Print

Power
Source-ON

L4

6

Transfer belt lift trouble

Image process
(Transfer)

Color /
Monochrome copy
(print) mode select

Power
Source-ON

L6

10

Laser scanner (writing) motor lock
detection  (BLACK)

Laser scanner
(writing) 

All modes

Power
Source-ON

L6

11

Laser scanner (writing) motor lock
detection  (CYAN)

Laser scanner
(writing) 

All modes

Power
Source-ON

L6

12

Laser  scanner (writing) motor lock
detection  (MAGENTA)

Laser scanner
(writing) 

All modes

Power
Source-ON

L6

13

Laser scanner (writing) motor lock
detection  (YELLOW)

Laser scanner
(writing) 

All modes

Power
Source-ON

L8

1

Power full wave signal (FWS) trouble

Power source

All modes

Power
Source-ON

L8

2

Power full wave signal (FWS) width
trouble

Power source

All modes

Power
Source-ON

PF

0

RIC copy inhibit signal reception

PCU PWB

RIC
communication

SIM 17

U0

0

Operation control PWB - PCU MAIN
PWB communication trouble
(OPE/PCU detection)

Operation
PWB/PCU MAIN
PWB

All modes

Power
Source-ON

U0

80

PCU MAIN PWB - PCUSUB PWB
communication trouble (PCU detection)

PCU SUB
PWB/PCU MAIN
PWB

All modes

Power
Source-ON

U2

0

EEPROM read/write error (PCU MAIN
PWB)

PCU PWB

Warm-up

SIM 16

U2

11

Counter data (EEPROM) check sum
error (PCU MAIN PWB)

PCU PWB

All modes

SIM 16

U2

12

Setup/Adjustment value data
(EEPROM) check sum error (PCU
MAIN PWB)

PCU PWB

All modes

SIM 16

U2

20

EEPROM read/write error (ICU MAIN
PWB)

ICU PWB

Warm-up

SIM 16

U2

21

Counter (EEPROM) check sum error
(ICU MAIN PWB)

ICU PWB

All modes

SIM 16

U2

22

Setup, adjustment value (EEPROM)
check sum error (ICU MAIN PWB)

ICU PWB

All modes

SIM 16

U2

30

Manufacturing No. data (ICU MAIN
PWB/PCU MAIN PWB) discrepancy

ICU PWB / PCU
PWB

All modes

SIM 16

U4

0

PCU MAIN PWB - ADU
communication trouble

PCU PWB / Duplex
control PWB

Warm-up /
Initialize

Power
Source-ON

U4

2

ADU Alignment plate operation trouble

Duplex

Initialize/Duplex
copy (print)

Power
Source-ON

U4

12

ADU transport motor trouble

Duplex

Duplex copy (print) Power

Source-ON

U5

0

PCU MAIN PWB - RADF
communication trouble 

PCU PWB / RADF
control PWB

Warm-up /
Initialize

Power
Source-ON

U5

1

RADF resist sensor trouble

RADF

RADF

Power
Source-ON

U5

2

RADF expulsion sensor trouble

RADF

RADF

Power
Source-ON

10 –  5A

Main 

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Title (Content)

Section 

Operation mode

Remedy

NOTE

U5

3

RADF timing sensor trouble

RADF

RADF

Power
Source-ON

U5

11

RADF paper feed motor trouble

RADF

RADF

Power
Source-ON

U6

9

Large capacity tray (LCC) lift motor
trouble

Large capacity tray

Paper feed

SIM 15

U6

20

PCU MAIN PWB-Large capacity tray
(LCC) communication trouble

Large capacity tray
control PWB / PCU
MAIN PWB

Warm-up /
Initialize

Power
Source-ON

U6

21

Large capacity tray (LCC) transport
motor trouble

Large capacity tray

Paper feed

Power
Source-ON

U6

22

Large capacity tray (LCC) 24v power
trouble

Large capacity tray  All modes

Power
Source-ON

U7

0

RIC communication trouble

PCU PWB

RIC
communication 

Power
Source-ON

UC

0

ICU SCAN PWB - CPT PWB
communication trouble

ICU SCAN PWB /
CPT PWB

Copy

Power
Source-ON

UC

1

CPT board program trouble

CPT PWB

Warm-up /
Initialize

Power
Source-ON

UC

2

CPT board ASIC trouble

CPT PWB

Warm-up /
Initialize

Power
Source-ON

UC

3

CPT board ROM trouble

CPT PWB

Warm-up /
Initialize

Power
Source-ON

UC

4

CPT board RAM trouble

CPT PWB

Warm-up /
Initialize

Power
Source-ON

UC

5

CPT board model code data trouble

ICU MAIN PWB /
CPT PWB

Warm-up /
Initialize

Power
Source-ON

Main 

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Title

Phenomena Display

Lamp

Message

Detail

In shading correction, the CCD white reading level is abnormal (with the scanner lamp OFF).

Section

Scanner (reading) / ICU SCAN PWB

Operation mode

Warm-up / Initialize

Note

Case 1

Trouble
position/Cause

Improper CCD white level gain
Too great CCD white level gain

Remedy

(Check)
  1) Use SIM 63-1 to check the values of ADJUST ODD GAIN and ADJUST EVEN GAIN of each color
      of R/G/B. (There are six values in total.) (AR-C150)
  2) Add 25 to each value of GAIN ODD and GAIN EVEN of R/G/B checked in procedure 1) and make
      notes of the total values. (AR-C150)
  3) Enter the SIM 46-6 mode, and replace each value of GAIN ODD and GAIN EVEN of R/G/B with 
      the total values calculated in procedure 2). (Input the new value.) (AR-C150)
  4) Cancel the simulation.
  5) Turn OFF/ON the power, and shading operation will be performed. 

(Repair) Power OFF-ON

(After work)

Note

This trouble occasionally happens when the CCD unit (with the lens) is replaced. 

Case 2

Trouble
position/cause

Bad connection of the flat cable between the CCD unit and the ICU SCAN PWB. 

Remedy

(Check) Check connection of the flat cable between the CCD unit and the ICU SCAN PWB.

(Repair) Replace the flat cable between the CCD unit and the ICU SCAN PWB. / Power Source-ON

(After-work)

Note

10 –  6A

Main 

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Title

Case 3

Trouble
position/cause

CCD unit trouble

Remedy

(Check) CCD black offset level check (SIM 46-6) / Shading correction result check (SIM 63-1)
(AR-C150 only)

(Repair) Replace the CCD unit. / Power Source-ON

(After-work) Adjust ADJM17-ADJ1.

Note

Case 4

Trouble
position/cause

ICU SCAN PWB, ICU IMAGE PWB, ICU MAIN PWB trouble

Remedy

(Check)

(Repair) ICU SCAN PWB, ICU IMAGE PWB, ICU MAIN PWB. / Power Source-ON

(After-work) Adjust ADJM9/M10/M12/M13/M14/M15/M17. / Re-enter setup values and adjustment
values. (Install the EEPROM of the defective ICU MAIN PWB to a new ICU MAIN PWB.)

Note

Case 5

Trouble
position/cause

Scanner section dirt (Shading sheet trouble (dirt, scratch)/Lens dirt/Mirror dirt/Reflector dirt)

Remedy

(Check) Scanner section dirt check 

(Repair) Clean the scanner section (shading sheet/lens/CCD/mirror/reflector)./Power Source-ON

(After-work)

Note

Case 6

Trouble
position/cause

Scanner lamp insufficient light quantity (Scanner lamp trouble/scanner lamp control PWB trouble)

Remedy

(Check) Check the scanner lamp applying voltage (62.3V).

(Repair) Replace the scanner lamp. / Replace the scanner lamp control PWB. / Power Source-ON

(After-work) Adjust ADJM17-ADJ1.

Note

Main 

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Title

Phenomenon Display

Lamp

Message

Detail

In the initial operation, the motor rotation sensor output signal is not recognized within the specified
time after output of the finisher paper exit motor / reversing motor ON signal.

Section

Finisher paper exit 

Operation mode

Power ON/ Initial operation

NOTE

Case 1

Trouble position /
Cause

Paper exit motor trouble / Reversing motor trouble / Paper exit motor rotation sensor trouble /
Reversing motor rotation sensor trouble

Remedy

(Check) Check the paper exit motor / reversing motor / Reversing motor rotation sensor / paper exit
motor rotation sensor operations. (SIM 3-1/2)

(Repair) Replace the paper exit motor. / Replace the paper exit motor rotation sensor. / Power
OFF-ON

(After work)

Case 2

Trouble position /
Cause

Paper exit mechanism section trouble

Remedy 

(Check) Check the paper exit mechanism section operation. (SIM 3-1/2)

(Repair) Replace or repair parts of the paper exit mechanism section. / Power OFF-ON

(After work)

Case 3

Trouble position /
Cause

Finisher control PWB trouble

Remedy 

(Check) Check the finisher control PWB operation. (SIM 3-1/2)

(Repair) Replace the finisher control PWB. / Power OFF-ON

(After work) Make various adjustments related to the finisher electric section. (Install the EEPROM
of the defective finisher control PWB to a new finisher control PWB.)

10 –  7A

Main 

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Title

Phenomena Display

Lamp
Message

Detail

The motor lock signal is detected for 50ms or more during rotation of the fusing motor. 

Section

Paper feed

Operation mode

Paper feed

Note

Case 1

Trouble
position/cause

Fusing motor trouble

Remedy

(Check) Check the fusing motor operation. (SIM 6-1)
(Repair) Replace the fusing motor. / Power Source-ON
(After-work)

Note

Case 2

Trouble
position/cause

PCU MAIN PWB trouble  

Remedy

(Check)
(Repair) Replace the PCU MAIN PWB. / Power Source-ON
(After-work) Re-enter setup values and adjustment values. (Install the EEPROM of the defective PCU
MAIN PWB to a new PCU MAIN PWB.)

Note

Case 3

Trouble
position/cause

Fusing mechanism section trouble. 

Remedy

(Check) Check the loads in the fusing mechanism section. 
(Repair) Repair or replace parts in the fusing mechanism section. / Power Source-ON
(After-work)

Note

Main 

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Title

Phenomena Display

Lamp
Message

Detail

The motor lock signal is detected for 3.5sec or more when the developing motor is ON. 

Section

Developing drive

Operation mode

Warm-up / Copy / Print

Note

Case 1

Trouble
position/cause

Developing motor trouble

Remedy

(Check) Check the developing motor operation (SIM 25-1). 
(Repair) Replace the developing motor. / Power Source-ON
(After-work)

Note

Case 2

Trouble
position/cause

Developing mechanism section trouble

Remedy

(Check) Check the loads of the developing mechanism section.
(Repair) Repair or replace the parts in the developing mechanism section. / Power Source-ON
(After-work)

Note

Case 3

Trouble
position/cause

PCU MAIN PWB trouble  

Remedy

(Check)
(Repair) Replace the PCU MAIN PWB. / Power Source-ON
(After-work) Re-enter setup values and adjustment values. (Install the EEPROM of the defective PCU
MAIN PWB to a new PCU MAIN PWB.)

Note

10 –  8A