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Main 
code

Sub

code

Detail of trouble

U9

00

Cause

Operation control PWB connector
disconnection
Operation control PWB MCU PWB
harness failure

Check and
remedy

Check the connectors and harness
of the operation control PWB and
the MCU PWB.
Check grounding of the machine.
Check the ROM of the operation
control PWB.

80

Content

Operation control PWB
communication trouble (Protocol)

Detail

Communication trouble between
MCU and the operation control
PWB (Protocol error)

Cause

Operation control PWB connector
disconnection
Operation control PWB MCU PWB
harness failure

Check and
remedy

Check the connectors and harness
of the operation control PWB and
the MCU PWB.
Check grounding of the machine.

81

Content

Operation control PWB
communication trouble (Parity)

Detail

Communication trouble between
MCU and the operation control
PWB (Parity error)

Cause

Operation control PWB connector
disconnection
Operation control PWB MCU PWB
harness failure

Check and
remedy

Check the connectors and harness
of the operation control PWB and
the MCU PWB.
Check grounding of the machine.

82

Content

Operation control PWB
communication trouble (Overrun)

Detail

Communication trouble between
MCU and the operation control
PWB (Overrun error)

Cause

Operation control PWB connector
disconnection
Operation control PWB MCU PWB
harness failure

Check and
remedy

Check the connectors and harness
of the operation control PWB and
the MCU PWB.
Check grounding of the machine.

84

Content

Operation control PWB
communication trouble (Framing)

Detail

Communication trouble between
MCU and the operation control
PWB (Framing error)

Cause

Operation control PWB connector
disconnection
Operation control PWB MCU PWB
harness failure

Check and
remedy

Check the connectors and harness
of the operation control PWB and
the MCU PWB.
Check grounding of the machine.

Main 
code

Sub

code

Detail of trouble

U9

88

Content

Operation control PWB
communication trouble (Time-out)

Detail

Communication trouble between
MCU and the operation PWB
(Time-out error)

Cause

Operation control PWB connector
disconnection
Operation control PWB MCU PWB
harness failure

Check and
remedy

Check the connectors and harness
of the operation control PWB and
the MCU PWB.
Check grounding of the machine.

U95

Content

Operation control PWB
communication error

Detail

Communication error between the
operation control PWB and the
MCU PWB (Detected by the OPE-
PWB)

Cause

Disconnection or reverse
connection of the flat cable
between the Operation control
PWB and the MCU PWB.
Operation control PWB trouble
MCU PWB trouble
Connector trouble of the operation
control PWB and the MCU PWB

Check and
remedy

Check insertion of or replace the
flat cable between the operation
control PWB and the MCU PWB.
Replace the operation control PWB.
Replace the MCU PWB.
Check connection of the connector
of the operation control PWB and
the MCU PWB.

U99

Content

Operation control PWB
communication error

Detail

Communication error between the
operation control PWB and the
MCU PWB (Detected by the OPE-
PWB)

Cause

Disconnection or reverse
connection of the flat cable
between the Operation control
PWB and the MCU PWB.
Operation control PWB trouble
MCU PWB trouble
Connector trouble of the operation
control PWB and the MCU PWB

Check and
remedy

Check insertion of or replace the
flat cable between the operation
control PWB and the MCU PWB.
Replace the operation control PWB.
Replace the MCU PWB.
Check connection of the connector
of the operation control PWB and
the MCU PWB.

AR-162 TROUBLE CODE LIST – 8

✕

: Check (Clean, adjust, or replace when required.)    : Clean 

▲

: Replace    : Adjust 

✩

: Lubricate

Unit name

Part name

When calling or

replacing the kit

150k

Transfer section

Charger unit

Transfer paper guide

Optical section

Lamp unit

Reflector

Mirror

No. 2/3 mirror unit

Mirror

Pulley

✕

✕

CCD peripheral

Lens

Glass

Table glass

White plate

Other

Drive wire

✕

✕

Rail

✕✩

✕✩

Document cover

Document size sensor

LSU

Dust-proof glass

Paper feed section

Multi paper feed section

Takeup roller

Paper feed roller

Spring clutch

✩

✩

Cassette section

Paper feed roller

Spring clutch

✩

✩

Paper transport section

PS roller

Transport (paper exit) rollers

Spring clutch

✩

✩

Fusing section

Upper heat roller

▲

Pressure roller

Pressure roller bearing

✕

✩

Upper separation pawl

✕

Lower separation pawl

✕

Drive section

Gears

✕✩

✕✩

Belts

✕

Paper exit section

Ozone filter

✕

✕

∗

1: Recommendable replacement time: 30K (A4 (8.5" 

×

 11"), 6% print)

Toner

Life

13K

Remaining
quantity check 

∗

1

a. Press and hold the density adjustment LIGHT key for more than 5 sec, and the machine will enter the

user program mode.

b. Press and hold the "%" key for more than 5 sec, and the remaining quantity will be displayed on the copy

quantity display in one of the following levels: (Remaining quantity display levels: 100%, 75%, 50%, 25%,
10%, LO)

c. Press the density adjustment LIGHT key to cancel.

Remaining
quantity

NEAR EMPTY
About 10%

EMPTY

LED

ON

Flash

Machine

Operation allowed

Stop

Developer

Life

30K

LED

ON at 30K of the developer count.

Machine

Selection is available between Not Stop and Stop by Service Simulation (SIM 26-37) Setup.
(If Stop is selected, the LED will flash and stop at 30K.)

∗

 Default: Not Stop

∗

 Clear: SIM 42-1

Maintenance

LED

Selection is available among 30K, 15K, 10K, 7.5K, 5K, and free (no lighting) with SIM 21-1.

∗

 Default: 30K

∗

 Clear: SIM 20-1

Machine

Not stop.

∗

1: Installation of a new toner cartridge allows to display the remaining quantity.

∗

1

AR-162 [10] MAINTENANCE 11/21/2000

AR-162 MAINTENANCE – 1

When a waste toner cartridge is removed from the machine, it must
be put in a polyethylene bag to avoid scattering of toner.

Do not shake or put up the developer cartridge. Otherwise developer
may scatter.

WARNING: Before performing the disassembly procedure, be sure

to remove the power cord to prevent against an electric
shock.

No.

Item

1

High voltage section/Duplex transport section

2

Optical section

3

Fusing section

4

Paper exit section

5

MCU

6

Optical frame unit

7

LSU

8

Tray paper feed section/Paper transport section

9

Manual multi paper feed section

10

Power section

11

Developing section

12

Process section

No.

Content

A

Transfer charger unit

B

Charger wire

C

Duplex transport section <Only AR-206/207>

AR-162 [10] MAINTENANCE 11/21/2000

AR-162 MAINTENANCE – 2

(3)

(1)

(2)

(3)

(3)

(3)

(4)

(1)

(2)

(1)

Installation: The spring tip must be between two reference ribs.

•

The charger wire must be free from twist or bending.

•

Be sure to put the charger wire in the V groove. 

No.

Content

A

Table glass

B

Copy lamp unit

C

Copy lamp

D

Lens unit

Disassembly: Be sure to put No. 2/3 mirror unit to the positioning

plate (A). 

Assembly:

Put the notched surface of wire holder (3) downward,
tighten temporarily, and install.

Adjustment:

Main scanning direction distortion balance adjustment

AR-162 [11] DISASSEMBLY AND ASSEMBLY 10/5/2000

AR-162 DISASSEMBLY AND ASSEMBLY – 1