AR-505 (serv.man11). AR505 Service Manual-Trouble Code List - Sharp Copying Equipment Service Manual (repair manual). Page 6

Trouble code

Description

Main
code

Sub

code

F2

32

Content Process control trouble (Drum marking

scanning trouble)

Detail

Usually the sensor gain is adjusted so
that the output is a certain value, by
reading the drum base surface with the
drum marking sensor before starting
process control.
However, a certain output is not obtained
by adjusting the sensor gain.

Cause

Drum marking sensor defective
Improper connection of harness between
PCU PWB and drum marking sensor
Drum marking sensor contaminated
OPC drum cleaning improper
Charging voltage improper

Check
and
remedy

Check process control output with
SIM44-02. (Do not adjust.)
If the result is far different from the
specified value, it suggests the sensor is
defective. Check the sensor and harness.
If the deviation is relatively small, check
the sensor and drum surface for
contamination.

37

Content Drum marking sensor gain adjustment

error

Detail

When the drum marking area surface is
scanned with the drum marking sensor
before starting process control and the
sensor gain is adjusted until a constant
output is provided, the output is not
constant though the sensor gain is
changed.

Cause

Drum marking sensor trouble
Improper connection between PCU PWB
and drum marking sensor
Drum marking sensor is dirty
OPC drum cleaning trouble

Check
and
remedy

Perform the gain adjustment of process
control sensor with SIM 44-2.
If ERROR is displayed, it may be a
breakdown. Check the sensor and the
harness.
When the adjustment is completed,
check the drum surface conditions.

39

Content Process thermistor breakdown
Detail

The process thermistor is open.

Cause

Process thermistor abnormality
Improper connection of the process
thermistor bar
PCU PWB abnormality

Check
and
remedy

Check connection of the process
thermistor harness and connector.
Check the PCU PWB.

F3

12

Content Copier top stage CS lift up trouble
Detail

UPED does not turn on within the
specified time.
ULUD does not turn on within the
specified time.

Cause

UPED or ULUD defective
Upper cassette lift-up motor defective
Improper connection of harness between
PCU PWB, lift-up unit, and paper feed
unit.

Check
and
remedy

Check UPED, ULUD and their harness
and connector.
Check lift-up unit.

Trouble code

Description

Main
code

Sub

code

F3

22

Content Copier bottom stage CS lift up trouble
Detail

LPED does not turn on within the
specified time.
LLUD does not turn on within the
specified time.

Cause

LPED or LLUD defective
Lower cassette lift-up motor defective
Improper connection of harness between
PCU PWB, lift-up unit, and paper feed
unit.

Check
and
remedy

Check LPED, LLUD, their harnesses and
connectors.
Check lift-up unit.

F9

00

Content Printer 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.

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.

03

Content Network card trouble.
Detail

Network card self test trouble.

Cause

Network card defecft.
Printer PWB defect.
Network card connector connection
defect.

Check
and
remedy

Check the Network card connector.
Replace the printer PWB.
Replace the Network card.

04

Content Printer program error.
Detail

Program data trouble in the option printer
board.

Cause

Flash memory data is destroied.

Check
and
remedy

Replace or rewrite the Flash memory.
Replace the printer PWB.

10

Content PRT SCSI LSI abnormality
Detail

An error occurred in SCSI
communication with the option printer
board.

Cause

SCSI LSI abnormality
ISU PWB abnormality
SCSI connector improper connection

Check
and
remedy

Replace the printer PWB.
Check the SCSI connector. 
Replace the ISU PWB.

AR-505

8/6/1999

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