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Model
AR-405 (serv.man13)
Pages
12
Size
79.48 KB
Type
PDF
Document
Service Manual
Brand
Device
Copying Equipment / AR405 Service Manual-Trouble Code List
File
ar-405-sm13.pdf
Date

Sharp AR-405 (serv.man13) Service Manual ▷ View online

Trouble code
Description
Main 
code
Sub
code
U5
02
Content RADF eject/inversion sensor defective
Detail
RADF eject/inversion sensor detection
trouble
Cause
Defective sensor
Improper connection of sensor harness
inside RADF.
RADF control PWB defective
Check
and
remedy
Check eject/inversion sensor detection
with SIM2-2.
Check sensor harness inside RADF.
03
Content RADF timing sensor defective
Detail
RADF timing sensor detection trouble
Cause
Defective sensor
Improper connection of sensor harness
inside RADF
RADF control PWB defective
Check
and
remedy
Check timing sensor detection with
SIM2-2.
Check sensor harness inside RADF.
11
Content Paper feed motor operation error
Detail
Paper feed motor driving error
Cause
Motor lock
Improper motor speed
Overcurrent to motor
RADF control PWB defective
Check
and
remedy
Check paper feed motor operation with
SIM2-3,4.
U6
00
Content Desk communication trouble
Detail
Failed communication with desk
Communication line test error occurs
when power is turned on or after the exit
of a simulation mode.
Cause
Improper connection or broken wire of
connector or harness
Desk control PWB defective
Control PWB (PCU) defective
Malfunction due to noise.
Check
and
remedy
Clear the trouble by turning the power
supply On/Off.
Check communication line connector
and harness.
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.
Trouble code
Description
Main 
code
Sub
code
U6
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.
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.
50
Content Non-support trouble in automatic
detection of option connection (Desk
unit)
Detail
In automatic detection of option
connection, a non-support desk unit is
detected.
Cause
A non-support desk unit is connected to
the copier. 
Check
and
remedy
Check the desk unit.
AR-405
1/21/1999
11 – 8
Trouble code
Description
Main 
code
Sub
code
U6
51
Content Non-support trouble in automatic
detection of option connection (LCC unit)
Detail
In automatic detection of option
connection, a non-support LCC unit is
detected.
Cause
A non-support LCC unit is connected to
the copier. 
Check
and
remedy
Check the LCC unit.
U7
00
Content RIC communication trouble
Detail
Communication error with RIC
Error in communication line test after
turning on the power or exiting from SIM.
Cause
Improper connection or disconnection of
connector and harness
RIC control PWB trouble
Control PWB (ICU) trouble
Malfunction caused by noises
Check
and
remedy
Turn off/on the power to cancel the
trouble.
U9
00
Content U9–
**
: ICU-OPE 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)
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.
Check the copier earth.
Trouble code
Description
Main 
code
Sub
code
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.
FC
00
Content ASK/IrDA modulation LSI reset error
Detail
Though the RESET signal pulse is sent
to the ASK/IrDA modulation LSI, the
power signal is not turned ON.
Cause
1)  ICU main PWB defect
2)  ASK/IrDA modulation LSI/Clock
oscillator defect
Check
and
remedy
Perform the self diag with SIM 68-01.
Replace the ICU main PWB.
01
Content ASK/IrDA switch error
Detail
Though the ASK/IrDA switch command
is sent to the ASK/IrDA modulation LSI,
the AI signal is not changed.
Cause
1)  ICU main PWB defect
2)  ASK/IrDA modulation LSI/Clock
oscillator defect
Check
and
remedy
Perform the self diag with SIM 68-01.
Replace the ICU main PWB.
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
FA
01
Content A2 board self diag error (memory error)
Detail
The memory error notice is received
from the A2 board.
Cause
A memory error occurred on the A2
board.
Check
and
remedy
Check the details of the error with SIM
69-02. Replace the A2 board.
AR-405
11 – 9
1/21/1999
[12] OPERATIONAL DESCRIPTION
Correcting operation in the image forming section (Process correction operation)
1. Outline and purpose
The operations of the image forming section are corrected in order to maintain stable and high-quality print even though any changes occur in the
temperature, humidity, consumable parts characteristics, engine conditions, or other environmental conditions.
In concrete, the correction is performed by controlling various control parameters related to the image forming section (process) operations. 
With the above correction operations, stable print quality is always provided, reducing service calls and service works. 
2. Image forming section correction operation (Process correction operation) 
There are following items of the image forming section correction operations (process correction operations).
a. List
Image forming section correction operations (process correction operations) list
Item No.
Correction operations
Purpose, effect
Execution conditions, operating timing
1
Image density sensor sensitivity
correction (Calibration) (Gain
adjustment)
Allows the image density sensor to always
detect the correct image patch density. 
Before process correction operation
2
OPC drum marking sensor sensitivity
correction
Allows the OPC drum marking sensor to
always detect the OPC drum marking
normally.
*
 1
3
Developing bias voltage correction
Prevents against density change and
background copy.
*
 1
4
Laser beam power correction 1
Prevent against a decrease in print density
due to OPC drum membrane decrease.
Specified rotating time of the OPC drum
(Every 20,000 sec)
Laser beam power correction 2
Outputs the laser beam power
corresponding to the main charger grid
voltage (to maintain the constant voltage). 
Immediately after correction of the main
charger grid voltage (
*
1)
5
Main charger grid voltage correction 1
Corrects a decrease in the charging voltage
due to the OPC drum membrane decrease,
maintains the correct density of print and
prevent against background copy.
Specified rotating time of the OPC drum
(Every 20,000 sec)
Main charger grid voltage correction 2
Maintains the relations between the
developing bias voltage and the main
charger grid voltage at constant (to prevent
against background copy).
Immediately after correction of the
developing bias voltage (
*
1)
6
Toner concentration correction
Maintains the normal toner concentration to
maintain the proper density of print and
prevent against background copy.
When the developing bias voltage
correction is performed for the voltage
higher than the specified level is made
immediately after the developing bias
voltage correction. (
*
1)
*
 1 During warm-up after turning on the power.
During warm-up after cancelling SIM 7-1, 24-7, 25-2, 44-2.
After completion of printing when the accumulated print time reaches 30 min from the previous correction.
When the next print is made when non-print status continues one hour.
3. Details
A.  Operating conditions and timing of the image forming section correction operation
(Process correction operation)
The image forming section correction operation (process correction operation) is performed under the following conditions and timing. 
1) During warm-up after turning on the power.
2) During warm-up after cancelling SIM 7-1, 24-7, 25-2, 44-2.
3) After completion of printing when the accumulated print time reaches 30 min from the previous correction.
4) When the next print is made when non-print status continues one hour.
AR-335
1/21/1999
12 – 1
(Danish)
ADVARSEL !
Lithiumbatteri – Eksplosionsfare ved fejlagtig håndtering.
Udskiftning må kun ske med batteri
af samme fabrikat og type.
Levér det brugte batteri tilbage til leverandoren.
(English)
Caution !
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type
recommended by the manufacturer.
Dispose of used batteries according to manufacturer’s instructions.
(Finnish)
VAROITUS
Paristo voi räjähtää, jos se on virheellisesti asennettu.
Vaihda paristo ainoastaan laitevalmistajan suosittelemaan
tyyppiin. Hävitä käytetty paristo valmistajan ohjeiden
mukaisesti.
(French)
ATTENTION
Il y a danger d’explosion s’ il y a remplacement incorrect
de la batterie. Remplacer uniquement avec une batterie du
même type ou d’un type équivalent recommandé par 
le constructeur.
Mettre au rebut les batteries usagées conformément aux
instructions du fabricant.
(Swedish)
VARNING
Explosionsfara vid felaktigt batteribyte.
Använd samma batterityp eller en ekvivalent
typ som rekommenderas av apparattillverkaren.
Kassera använt batteri enligt fabrikantens
instruktion.
CAUTION FOR BATTERY REPLACEMENT
AR-405
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