Sharp AR-M550 (serv.man16) Service Manual ▷ View online
AR-M550/M620 SELF DIAG MESSAGE AND TROUBLESHOOTING 9 - 26
Main
code
code
Sub
code
Title
Machine tray 1 lift-up trouble
F3
12
Phenomenon
Display
Lamp
Message
Message
Details
Machine tray 1 lift-up
trouble
PED does not turn on
within the specified time.
LUD does not turn on
within the specified time.
The trouble occurs 3
times continuously that
the upper limit sensor
does not turn on by lift-up
operation for 21sec when
inserting a tray or for 2sec
when printing.
For the first and the
second times, guide the
user to pull out the tray in
case of a tray size error.
trouble
PED does not turn on
within the specified time.
LUD does not turn on
within the specified time.
The trouble occurs 3
times continuously that
the upper limit sensor
does not turn on by lift-up
operation for 21sec when
inserting a tray or for 2sec
when printing.
For the first and the
second times, guide the
user to pull out the tray in
case of a tray size error.
Section
Engine
Operation
mode
mode
Note
Case 1
Trouble
position/
Cause
position/
Cause
PED, LUD trouble
No. 1 tray lift-up motor
trouble
Improper connection of
the harness of the PCU
PWB, the lift-up unit, and
the paper feed unit
No. 1 tray lift-up motor
trouble
Improper connection of
the harness of the PCU
PWB, the lift-up unit, and
the paper feed unit
Remedy
Check the harness and
connector of PED and
LUD
Lift-up trouble unit check.
Use SIM 15 to cancel the
trouble.
connector of PED and
LUD
Lift-up trouble unit check.
Use SIM 15 to cancel the
trouble.
Note
Main
code
code
Sub
code
Title
Machine tray 2 lift-up trouble
F3
22
Phenomenon
Display
Lamp
Message
Details
Machine tray 2 lift-up
trouble
MCPED does not turn on
within the specified time.
MCLUD does not turn on
within the specified time.
The trouble occurs 3
times continuously that
the upper limit sensor
does not turn on by lift-up
operation for 10sec when
inserting a tray or for
2sec when printing.
For the first and the
second times, guide the
user to pull out the tray in
case of a tray size error.
trouble
MCPED does not turn on
within the specified time.
MCLUD does not turn on
within the specified time.
The trouble occurs 3
times continuously that
the upper limit sensor
does not turn on by lift-up
operation for 10sec when
inserting a tray or for
2sec when printing.
For the first and the
second times, guide the
user to pull out the tray in
case of a tray size error.
Section
Engine
Operation
mode
Note
mode
Note
F3
22
Case 1
Trouble
position/
Cause
position/
Cause
MCPED, MCLUD trouble
No. 2 tray lift-up motor
trouble
Improper connection of
the harness of the PCU
PWB, the lift-up unit, and
the paper feed unit
No. 2 tray lift-up motor
trouble
Improper connection of
the harness of the PCU
PWB, the lift-up unit, and
the paper feed unit
Remedy
Check the harness and
the connector of MCPED
and MCLUD.
Lift-up trouble unit check.
Use SIM 15 to cancel the
trouble.
the connector of MCPED
and MCLUD.
Lift-up trouble unit check.
Use SIM 15 to cancel the
trouble.
Note
Main
code
code
Sub
code
Title
Machine tray 3 lift-up trouble
F3
32
Phenomenon
Display
Lamp
Message
Message
Details
Machine tray 3 lift-up
trouble
MCPED does not turn on
within the specified time.
MCLUD does not turn on
within the specified time.
The trouble occurs 3
times continuously that
the upper limit sensor
does not turn on by lift-up
operation for 10sec when
inserting a tray or for 2sec
when printing.
For the first and the
second times, guide the
user to pull out the tray in
case of a tray size error.
trouble
MCPED does not turn on
within the specified time.
MCLUD does not turn on
within the specified time.
The trouble occurs 3
times continuously that
the upper limit sensor
does not turn on by lift-up
operation for 10sec when
inserting a tray or for 2sec
when printing.
For the first and the
second times, guide the
user to pull out the tray in
case of a tray size error.
Section
Engine
Operation
mode
mode
Note
Case 1
Trouble
position/
Cause
position/
Cause
MCPED, MCLUD trouble
No. 3 tray lift-up motor
trouble
Improper connection of
the harness of the PCU
PWB, the lift-up unit, and
the paper feed unit
No. 3 tray lift-up motor
trouble
Improper connection of
the harness of the PCU
PWB, the lift-up unit, and
the paper feed unit
Remedy
Check the harness and
the connector of MCPED
and MCLUD.
Lift-up trouble unit check
the connector of MCPED
and MCLUD.
Lift-up trouble unit check
Note
Main
code
code
Sub
code
Title
Machine tray 2 lift-up trouble
AR-M550/M620 SELF DIAG MESSAGE AND TROUBLESHOOTING 9 - 27
Main
code
code
Sub
code
Title
Machine tray 4 lift-up trouble
F3
42
Phenomenon
Display
Lamp
Message
Message
Details
Machine tray 4 lift-up
trouble
MCPED does not turn on
within the specified time.
MCLUD does not turn on
within the specified time.
The trouble occurs 3
times continuously that
the upper limit sensor
does not turn on by lift-up
operation for 10sec when
inserting a tray or for 2sec
when printing.
For the first and the
second times, guide the
user to pull out the tray in
case of a tray size error.
trouble
MCPED does not turn on
within the specified time.
MCLUD does not turn on
within the specified time.
The trouble occurs 3
times continuously that
the upper limit sensor
does not turn on by lift-up
operation for 10sec when
inserting a tray or for 2sec
when printing.
For the first and the
second times, guide the
user to pull out the tray in
case of a tray size error.
Section
Engine
Operation
mode
mode
Note
Case 1
Trouble
position/
Cause
position/
Cause
MCPED, MCLUD trouble
No. 4 tray lift-up motor
trouble
Improper connection of
the harness of the PCU
PWB, the lift-up unit, and
the paper feed unit
No. 4 tray lift-up motor
trouble
Improper connection of
the harness of the PCU
PWB, the lift-up unit, and
the paper feed unit
Remedy
Check the harness and
the connector of MCPED
and MCLUD.
Lift-up trouble unit check
the connector of MCPED
and MCLUD.
Lift-up trouble unit check
Note
Main
code
code
Sub
code
Title
38V voltage trouble
F4
38
Phenomenon
Display
Lamp
Message
Message
Details
38V voltage falls or rises.
Section
Engine
Operation
mode
Note
mode
Note
Case 1
Trouble
position/
Cause
position/
Cause
Improper connection or
disconnection of the
connector and the
harness
disconnection of the
connector and the
harness
Remedy
Check the connector and
the harness of the power
line.
the harness of the power
line.
Note
Case 2
Trouble
position/
Cause
position/
Cause
PCU PWB trouble
Power unit trouble
Power unit trouble
Remedy
Check 38V power source
in the power unit and the
PCU PWB.
in the power unit and the
PCU PWB.
Note
Main
code
code
Sub
code
Title
MFP control-FAX communication
trouble (MFP control detection)
trouble (MFP control detection)
F6
00
Phenomenon
Display
Lamp
Message
Message
Details
MFP control-FAX
communication trouble
(MFP control detection)
The booting sequence by
the command line
(9600bps, serial) is not
completed normally.
Communication
establishment error/
framing/ parity/ protocol
error
communication trouble
(MFP control detection)
The booting sequence by
the command line
(9600bps, serial) is not
completed normally.
Communication
establishment error/
framing/ parity/ protocol
error
Section
FAX
Operation
mode
mode
Note
Case 1
Trouble
position/
Cause
position/
Cause
Defective connection of
the slave unit PWB
connector
Defective harness
between the slave unit
PWB and the MFP
control PWB
Slave unit PWB mother
board connector pin
breakage
the slave unit PWB
connector
Defective harness
between the slave unit
PWB and the MFP
control PWB
Slave unit PWB mother
board connector pin
breakage
Remedy
Use SIM 25-2 to perform
the automatic developing
adjustment.
Check connection of the
connector between the
slave unit PWB and the
MFP control PWB and
the harness.
the automatic developing
adjustment.
Check connection of the
connector between the
slave unit PWB and the
MFP control PWB and
the harness.
Note
Check grounding of the
machine.
machine.
Case 2
Trouble
position/
Cause
position/
Cause
Slave unit ROM trouble/
no ROM/ Reversed
insertion of ROM/ ROM
pin breakage
no ROM/ Reversed
insertion of ROM/ ROM
pin breakage
Remedy
Check the ROM on the
slave unit PWB.
slave unit PWB.
Note
AR-M550/M620 SELF DIAG MESSAGE AND TROUBLESHOOTING 9 - 28
Main
code
code
Sub
code
Title
FAX expansion Flash memory
trouble (MFP control detection)
trouble (MFP control detection)
F6
01
Phenomenon
Display
Lamp
Message
Message
Details
FAX expansion Flash
memory trouble (MFP
control detection)
The expansion flash
memory inserted to the
FAX I/F PWB could not
be cleared.
memory trouble (MFP
control detection)
The expansion flash
memory inserted to the
FAX I/F PWB could not
be cleared.
Section
FAX
Operation
mode
Note
mode
Note
Case 1
Trouble
position/
Cause
position/
Cause
Initialization of the FAX
expansion memory failed,
which is required for a
new memory that is
inserted to the PWB.
expansion memory failed,
which is required for a
new memory that is
inserted to the PWB.
Remedy
Use SIM 66-10 to clear
the expansion flash
memory.
the expansion flash
memory.
Note
Main
code
code
Sub
code
Title
FAX modem operation abnormality
F6
04
Phenomenon
Display
Lamp
Message
Details
FAX modem operation
abnormality
The initializing process of
the modem chip in the
FAX PWB is not
completed normally.
abnormality
The initializing process of
the modem chip in the
FAX PWB is not
completed normally.
Section
FAX
Operation
mode
mode
Note
Case 1
Trouble
position/
Cause
position/
Cause
SW101 in the FAX PWB
tries to perform normal
operation on the boot
side.
tries to perform normal
operation on the boot
side.
Remedy
Set SW101 on the FAX
PWB to other than the
boot side, and turn on the
power again.
PWB to other than the
boot side, and turn on the
power again.
Note
Case 2
Trouble
position/
Cause
position/
Cause
FAX PWB modem chip
operation trouble
operation trouble
Remedy
Replace the FAX PWB.
Note
Main
code
code
Sub
code
Title
FAX write protect cancel
F6
20
Phenomenon
Display
Lamp
Message
Message
Details
The write protect jumper
of the FAX interface PWB
is released.
of the FAX interface PWB
is released.
Section
FAX
Operation
mode
mode
Note
Case 1
Trouble
position/
Cause
position/
Cause
The FAX write protect pin
is set to Write Enable.
is set to Write Enable.
Remedy
Check the write protect
pin in the FAX interface
PWB.
pin in the FAX interface
PWB.
Note
Case 2
Trouble
position/
Cause
position/
Cause
FAX interface PWB
trouble
FAX PWB trouble
trouble
FAX PWB trouble
Remedy
Replace the FAX PWB.
Replace the FAX
interface PWB.
Replace the FAX
interface PWB.
Note
Main
code
code
Sub
code
Title
Abnormal combination of the TEL/
LIU PWB and the FAX soft switch
LIU PWB and the FAX soft switch
F6
21
Phenomenon
Display
Lamp
Message
Message
Details
Combination error of TEL/
LIU PWB and software
If the destination of the
installed TEL/LIU PWB
differs from that of the
FAX soft switch, it is
judged as an error.
LIU PWB and software
If the destination of the
installed TEL/LIU PWB
differs from that of the
FAX soft switch, it is
judged as an error.
Section
FAX
Operation
mode
Note
mode
Note
Case 1
Trouble
position/
Cause
position/
Cause
The destination of the
installed TEL/LIU PWB
differs.
The FAX PWB
information (soft switch)
differs.
installed TEL/LIU PWB
differs.
The FAX PWB
information (soft switch)
differs.
Remedy
Check the destination of
the TEL/LIU PWB.
Check the FAX PWB
information (soft switch).
the TEL/LIU PWB.
Check the FAX PWB
information (soft switch).
Note
Case 2
Trouble
position/
Cause
position/
Cause
TEL/LIU PWB trouble
Remedy
Replace the TEL/LIU
PWB.
PWB.
Note
AR-M550/M620 SELF DIAG MESSAGE AND TROUBLESHOOTING 9 - 29
Main
code
code
Sub
code
Title
FAX-BOX incompatibility trouble
F6
97
Phenomenon
Display
Lamp
Message
Message
Details
The FAX-BOX PWB is
not one for the AR-FX8.
(FAX detection)
If the FAX-BOX modem
controller PWB
information (hard
detection) is not for the
AR-FX8, it is judged as
an error.
not one for the AR-FX8.
(FAX detection)
If the FAX-BOX modem
controller PWB
information (hard
detection) is not for the
AR-FX8, it is judged as
an error.
Section
FAX
Operation
mode
Note
mode
Note
Case 1
Trouble
position/
Cause
position/
Cause
Because the FAX-BOX
modem controller PWB
information (hard
detection) is not for the
AR-FX8. (The modem
controller PWB for the
AR-FX5 or the AR-FX6 is
used.)
modem controller PWB
information (hard
detection) is not for the
AR-FX8. (The modem
controller PWB for the
AR-FX5 or the AR-FX6 is
used.)
Remedy
Check the FAX-BOX
modem controller PWB.
Replace it with a modem
controller PWB for the
AR-FX8.
modem controller PWB.
Replace it with a modem
controller PWB for the
AR-FX8.
Note
Main
code
code
Sub
code
Title
Combination error of the FAX-BOX
destination information and the
machine destination information
destination information and the
machine destination information
F6
98
Phenomenon
Display
Lamp
Message
Details
Combination error of the
FAX-BOX destination
information and the
machine destination
information
When the destination
information stored in the
FAX-BOX EEPROM is
compared with that of the
machine, and if the
combination is improper,
it is judged as an error.
FAX-BOX destination
information and the
machine destination
information
When the destination
information stored in the
FAX-BOX EEPROM is
compared with that of the
machine, and if the
combination is improper,
it is judged as an error.
Section
FAX
Operation
mode
Note
mode
Note
Case 1
Trouble
position/
Cause
position/
Cause
Because of improper
combination between the
destination information
stored in the EEPROM on
the FAX-BOX PWB and
that of the machine (set
with SIM 26-6).
combination between the
destination information
stored in the EEPROM on
the FAX-BOX PWB and
that of the machine (set
with SIM 26-6).
Remedy
Check the destination of
the FAX-BOX.
Check the machine
destination with SIM 26-6.
Use a proper combination
of the machine and the
FAX-BOX.
the FAX-BOX.
Check the machine
destination with SIM 26-6.
Use a proper combination
of the machine and the
FAX-BOX.
Note
Main
code
code
Sub
code
Title
FAX board EEPROM read/write
error
error
F7
01
Phenomenon
Display
Lamp
Message
Message
Details
FAX board EEPROM
read/write error
ACK from the EEPROM
cannot be checked.
read/write error
ACK from the EEPROM
cannot be checked.
Section
FAX
Operation
mode
Note
mode
Note
Case 1
Trouble
position/
Cause
position/
Cause
EEPROM trouble
FAX PWB EEPROM
access circuit trouble
FAX PWB EEPROM
access circuit trouble
Remedy
Replace the EEPROM.
Re-setup the soft SW.
Re-setup the soft SW.
Note
Main
code
code
Sub
code
Title
Thermistor open/Fusing unit not
installed
installed
H2
00/
HL1
Phenomenon
Display
Lamp
Message
01/
HL2
Details
Thermistor open (An
input voltage of 2.95V or
above is detected.)
Fusing unit not installed
input voltage of 2.95V or
above is detected.)
Fusing unit not installed
02/
HL3
Section
Engine
Operation
mode
Note
mode
Note
Case 1
Trouble
position/
Cause
position/
Cause
Thermistor trouble
Control PWB trouble
Improper connection of
the fusing section
connector
AC power trouble
Fusing unit not installed
Control PWB trouble
Improper connection of
the fusing section
connector
AC power trouble
Fusing unit not installed
Remedy
Check the harness and
the connector between
the thermistor and the
control PWB.
Use SIM 14 to clear the
self diag display.
the connector between
the thermistor and the
control PWB.
Use SIM 14 to clear the
self diag display.
Note
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