DOWNLOAD Sharp AR-285 (serv.man15) Service Manual ↓ Size: 81.02 KB | Pages: 10 in PDF or view online for FREE

Trouble code

Description

Main
code

Sub

code

U6

01 

∼

 02

Content Desk 1, 2 CS lift-up trouble

Detail

Desk cassette lift-up trouble (1st - 3rd
cassettes).

Cause

Defective sensor
RADF control PWB defective
Broken gear
Lift-up motor defective

Check
and
remedy

Check lift-up sensor detection with
SIM4-2.
Check lift-up motor with SIM4-3.

08

Content Desk 24-V power supply error

Detail

No supply of DC24V to desk

Cause

Improper connection or broken wire of
connector or harness
Desk control PWB defective
Power supply unit defective

Check
and
remedy

Check power supply line connector and
harness.
Check 24-V voltage on power supply unit
and desk control PWB.

09

Content LCC lift motor trouble

Detail

LCC lift motor trouble

Cause

Sensor trouble
LCC control PWB trouble
Gear breakage
Lift motor trouble

Check
and
remedy

Check the sensor detection with SIM 4-2.
Check the lift motor operation with SIM
4-3.

10

Content Desk transport motor trouble

Detail

Desk transport motor operation trouble

Cause

Motor lock
Improper motor speed
Overcurrent to motor
RADF control PWB defective

Check
and
remedy

Check transport motor operation with
SIM4-6.

20

Content LCC communication trouble

Detail

LCC communication trouble
Error when power is turned on or in
communication line test after exiting SIM.

Cause

Connector harness improper connection
or disconnection
LCC control PWB trouble
Control PWB (PCU) trouble
Malfunction by noise

Check
and
remedy

Canceled by turning on the power.
Check the connector and harness of the
communication line.

21

Content LCC transport motor trouble

Detail

LCC transport motor operation trouble

Cause

Motor lock
Motor rpm abnormality
Motor overcurrent
LCC control PWB trouble

Check
and
remedy

Check the transport motor operation with
SIM 4-3.

Trouble code

Description

Main
code

Sub

code

U6

22

Content LCC 24V power abnormality

Detail

DC24V not supplied to LCC

Cause

Connector harness improper connection
or disconnection
LCC control PWB trouble
Power unit trouble

Check
and
remedy

Check the connector and harness of
power line.
Check 24V power in the power unit and
the LCC control PWB.

U7

00

Content RIC communication trouble

Detail

RIC communication error
Error when the power is turned on or in
communication test after exiting from
SIM.

Cause

Connector harness improper connection
or disconnection
RIC control PWB (ICU) trouble
Malfunction by noise

Check
and
remedy

Canceled by turning on the power.
Check the connector and harness of the
power line.

PF

00

Content RIC copy inhibition signal received

Detail

Copy inhibition command received from
RIC (host)

Cause

Judged by the host.

Check
and
remedy

Notice to the host

EE

EL

Content Auto developing tone adjustment trouble

(overtoner error)

Detail

A sample data is less than 0 when auto
developing adjustment is executed.

Cause

Toner density sensor defective
Charging voltage or developing voltage
improper.
Toner density improper
Developing unit defective
PCU PWB defective

Check
and
remedy

Make auto developing adjustment with
SIM25-2.

EU

Content Auto developing adjustment trouble

(undertoner error)

Detail

A sample data is less than 99 when auto
developing adjustment is executed.

Cause

Toner density sensor defective
Charging voltage or developing voltage
improper
Toner density improper
Unit defective
PCU PWB defective

Check
and
remedy

Make auto developing adjustment with
SIM25-2.

PF

00

Content RIC copy inhibition signal received

Detail

Copy inhibition command received from
the host (RIC)

Cause

Judged by the host

Check
and
remedy

Notice to the host

11 – 7

Trouble code

Description

Main
code

Sub

code

U9
E7

F9

00

Content U9–

: ICU-OPE communication

trouble (ICU detection)
E7–

: ICU-PCU communication

trouble (ICU detection)
F9–

: ICU-PRT communication

trouble (ICU detection)

Detail

Communication setup error,
framing/parity/protocol error

Cause

Slave unit PWB connector improper
connection
Slave unit PWB – ICU PWB harness
trouble
Connector pin breakage of the motor
PWB of the slave unit PWB
Slave unit ROM trouble. no ROM, ROM
reverse insertion, ROM pin breakage

Check
and
remedy

Connect the connector of the slave unit
PWB and the ICU PWB.
Check the connection and the harness.
Check the grounding of the copier.
Check the ROM of the slave unit PWB.

90

Content U9–

: ICU-OPE communication

trouble (OPE detection)
E7–

: ICU-PCU communication

trouble (PCU detection)
F9–

: ICU-PRT communication

trouble (PRT detection)

Detail

Communication setup
error/framing/parity/protocol error

Cause

Slave unit PWB connector improper
connection
Slave unit PWB – ICU PWB harness
trouble
Slave unit PWB mother board connector
pin breakage

Check
and
remedy

Check the slave unit PWB and the ICU
PWB connector connection and
connection.
Check the copier earth.

F9

01

Content PRT DRAM trouble

Detail

Option printer PWB DRAM trouble
(Check when turning on the power.)

Cause

DRAM module is broken and access
cannot be made.
DRAM module improper installation

Check
and
remedy

Check with SIM 67-1.

U2

00

Content EEPROM read/write error

Detail

EEPRO version error. Error in writing into
EEPROM.

Cause

EEPROM defective
Uninitialized EEPROM is installed
Defective EEPROM access circuit on
PCU PWB

Check
and
remedy

Check EEPROM for proper set-up
To prevent the erasion of counter data
and adjustment values, write down the
counter data and adjustment values by
simulation. (If there is a printer option,
execute SIM23-1 and note counter
data/adjustment values.)
Clear U2 trouble with SIM16.
Replace PCU PWB.

Trouble code

Description

Main
code

Sub

code

U2

11

Content Counter checksum error

Detail

Checksum error in counter data area

Cause

EEPROM defective
Control circuit hung up due to noise
Defective EEPROM access circuit on
PCU PWB

Check
and
remedy

Check EEPROM for proper set-up
To prevent the erasion of counter data
and adjustment values, write down the
counter data and adjustment values by
simulation. (If there is a printer option,
execute SIM23-1 and note counter
data/adjustment values.)
Clear U2 trouble with SIM16.
Replace PCU PWB.

12

Content Adjustment value checksum error

Detail

Checksum error in adjustment value data
area

Cause

EEPROM defective
Control circuit hung up due to noise.
Defective EEPROM access circuit on
PCU PWB

Check
and
remedy

Check EEPROM for proper set-up
To prevent the erasion of counter data
and adjustment values, write down the
counter data and adjustment values by
simulation. (If there is a printer option,
execute SIM23-1 and note counter
data/adjustment values.)
Clear U2 trouble with SIM16.
Replace PCU PWB.

11 – 8

Trouble code

Description

Main
code

Sub

code

U9
E7

F9

00

Content U9–

: ICU-OPE communication

trouble (ICU detection)
E7–

: ICU-PCU communication

trouble (ICU detection)
F9–

: ICU-PRT communication

trouble (ICU detection)

Detail

Communication setup error,
framing/parity/protocol error

Cause

Slave unit PWB connector improper
connection
Slave unit PWB – ICU PWB harness
trouble
Connector pin breakage of the motor
PWB of the slave unit PWB
Slave unit ROM trouble. no ROM, ROM
reverse insertion, ROM pin breakage

Check
and
remedy

Connect the connector of the slave unit
PWB and the ICU PWB.
Check the connection and the harness.
Check the grounding of the copier.
Check the ROM of the slave unit PWB.

90

Content U9–

: ICU-OPE communication

trouble (OPE detection)
E7–

: ICU-PCU communication

trouble (PCU detection)
F9–

: ICU-PRT communication

trouble (PRT detection)

Detail

Communication setup
error/framing/parity/protocol error

Cause

Slave unit PWB connector improper
connection
Slave unit PWB – ICU PWB harness
trouble
Slave unit PWB mother board connector
pin breakage

Check
and
remedy

Check the slave unit PWB and the ICU
PWB connector connection and
connection.
Check the copier earth.

F9

01

Content PRT DRAM trouble

Detail

Option printer PWB DRAM trouble
(Check when turning on the power.)

Cause

DRAM module is broken and access
cannot be made.
DRAM module improper installation

Check
and
remedy

Check with SIM 67-1.

U2

00

Content EEPROM read/write error

Detail

EEPRO version error. Error in writing into
EEPROM.

Cause

EEPROM defective
Uninitialized EEPROM is installed
Defective EEPROM access circuit on
PCU PWB

Check
and
remedy

Check EEPROM for proper set-up
To prevent the erasion of counter data
and adjustment values, write down the
counter data and adjustment values by
simulation. (If there is a printer option,
execute SIM23-1 and note counter
data/adjustment values.)
Clear U2 trouble with SIM16.
Replace PCU PWB.

Trouble code

Description

Main
code

Sub

code

U2

11

Content Counter checksum error

Detail

Checksum error in counter data area

Cause

EEPROM defective
Control circuit hung up due to noise
Defective EEPROM access circuit on
PCU PWB

Check
and
remedy

Check EEPROM for proper set-up
To prevent the erasion of counter data
and adjustment values, write down the
counter data and adjustment values by
simulation. (If there is a printer option,
execute SIM23-1 and note counter
data/adjustment values.)
Clear U2 trouble with SIM16.
Replace PCU PWB.

12

Content Adjustment value checksum error

Detail

Checksum error in adjustment value data
area

Cause

EEPROM defective
Control circuit hung up due to noise.
Defective EEPROM access circuit on
PCU PWB

Check
and
remedy

Check EEPROM for proper set-up
To prevent the erasion of counter data
and adjustment values, write down the
counter data and adjustment values by
simulation. (If there is a printer option,
execute SIM23-1 and note counter
data/adjustment values.)
Clear U2 trouble with SIM16.
Replace PCU PWB.

11 – 8

Trouble code

Description

Main
code

Sub

code

U9
E7

F9

00

Content U9–

: ICU-OPE communication

trouble (ICU detection)
E7–

: ICU-PCU communication

trouble (ICU detection)
F9–

: ICU-PRT communication

trouble (ICU detection)

Detail

Communication setup error,
framing/parity/protocol error

Cause

Slave unit PWB connector improper
connection
Slave unit PWB – ICU PWB harness
trouble
Connector pin breakage of the motor
PWB of the slave unit PWB
Slave unit ROM trouble. no ROM, ROM
reverse insertion, ROM pin breakage

Check
and
remedy

Connect the connector of the slave unit
PWB and the ICU PWB.
Check the connection and the harness.
Check the grounding of the copier.
Check the ROM of the slave unit PWB.

90

Content U9–

: ICU-OPE communication

trouble (OPE detection)
E7–

: ICU-PCU communication

trouble (PCU detection)
F9–

: ICU-PRT communication

trouble (PRT detection)

Detail

Communication setup
error/framing/parity/protocol error

Cause

Slave unit PWB connector improper
connection
Slave unit PWB – ICU PWB harness
trouble
Slave unit PWB mother board connector
pin breakage

Check
and
remedy

Check the slave unit PWB and the ICU
PWB connector connection and
connection.
Check the copier earth.

F9

01

Content PRT DRAM trouble

Detail

Option printer PWB DRAM trouble
(Check when turning on the power.)

Cause

DRAM module is broken and access
cannot be made.
DRAM module improper installation

Check
and
remedy

Check with SIM 67-1.

U2

00

Content EEPROM read/write error

Detail

EEPRO version error. Error in writing into
EEPROM.

Cause

EEPROM defective
Uninitialized EEPROM is installed
Defective EEPROM access circuit on
PCU PWB

Check
and
remedy

Check EEPROM for proper set-up
To prevent the erasion of counter data
and adjustment values, write down the
counter data and adjustment values by
simulation. (If there is a printer option,
execute SIM23-1 and note counter
data/adjustment values.)
Clear U2 trouble with SIM16.
Replace PCU PWB.

Trouble code

Description

Main
code

Sub

code

U2

11

Content Counter checksum error

Detail

Checksum error in counter data area

Cause

EEPROM defective
Control circuit hung up due to noise
Defective EEPROM access circuit on
PCU PWB

Check
and
remedy

Check EEPROM for proper set-up
To prevent the erasion of counter data
and adjustment values, write down the
counter data and adjustment values by
simulation. (If there is a printer option,
execute SIM23-1 and note counter
data/adjustment values.)
Clear U2 trouble with SIM16.
Replace PCU PWB.

12

Content Adjustment value checksum error

Detail

Checksum error in adjustment value data
area

Cause

EEPROM defective
Control circuit hung up due to noise.
Defective EEPROM access circuit on
PCU PWB

Check
and
remedy

Check EEPROM for proper set-up
To prevent the erasion of counter data
and adjustment values, write down the
counter data and adjustment values by
simulation. (If there is a printer option,
execute SIM23-1 and note counter
data/adjustment values.)
Clear U2 trouble with SIM16.
Replace PCU PWB.

11 – 8