AR-405 (serv.man13). AR405 Service Manual-Trouble Code List - Sharp Copying Equipment Service Manual (repair manual). Page 5

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Trouble code
Description
Main 
code
Sub
code
F1
14
Content Stack tray abnormality
Detail
Stack tray control sensor abnormality
Cause
The paper surface sensor and the full
stack sensor do not turn on even when a
certain time is passed after starting the
tray.
Check
and
remedy
Check the sensor operation with SIM 3-2.
15
Content Finisher elevator motor trouble / Stack
tray motor lock
Detail
Elevator motor trouble
Cause
Motor lock
Motor rpm abnormality
Motor overcurrent
Finisher control PWB trouble
Check
and
remedy
Check the elevator motor operation with
SIM 3-3.
50
Content Non-support trouble in automatic
detection of option connection (Finisher /
sorter)
Detail
In automatic detection of option
connection, a non-support finisher or a
sorter is detected. 
Cause
A non-support finisher or a sorter is
connected to the copier. 
Check
and
remedy
Check the finisher or the sorter. 
80
Content Finisher power trouble
Detail
24V power is not supplied to the finisher
PWB.
Cause
Connector harness improper connection
or disconnection
Finisher control PWB trouble
Power unit trouble
Check
and
remedy
Check the sensor operation with SIM 3-2.
F2
00
Content Toner control sensor open
Detail
Toner control sensor output open
Cause
Connector harness trouble
Connector unconnected.
Check
and
remedy
Check connection of the toner control
sensor.
Check connection of the connector
harness with the main PWB.
Check for disconnection of the harness.
02
Content Toner motor connector disconnected
Detail
Connection detection signal with toner
motor is OFF
Cause
Connector harness defective
Connector disconnected
Check
and
remedy
Check toner motor connector for
connection.
Check connector harness to main PWB
for connection.
Check harness for broken wire.
Trouble code
Description
Main 
code
Sub
code
F2
31
Content Process control trouble (OPC base
surface reflection factor is improper)
Detail
Usually the sensor gain is adjusted so
that the output is a certain value, by
reading the drum base surface with the
image density sensor before starting
process control.
However, a certain output is not
obtained by adjusting the sensor gain.
Cause
Image density sensor defective
Check
and
remedy
Check process control sensor output
with SIM44-2. (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.
32
Content Process control trouble (drum marking
sensor defective)
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.
AR-405
1/21/1999
11 – 4
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