Read Sharp MX-B201D (serv.man9) Service Manual online
MX-B201/B201D SIMULATION, TROUBLE CODES 10 - 45
：'11/Oct/17
1
L1
00
Content Feeding is not completed within the
specified time after starting feeding. (The
scan head locking switch is locked)
scan head locking switch is locked)
Detail
The white area and the black marking on the
shading plate are used to obtain the
difference in the CCD level values for
judgment of lock. When the difference in the
levels of which and black is small, it is judged
that the black mark could not be scanned by
lock and the trouble code "L1" is displayed.
shading plate are used to obtain the
difference in the CCD level values for
judgment of lock. When the difference in the
levels of which and black is small, it is judged
that the black mark could not be scanned by
lock and the trouble code "L1" is displayed.
Cause
The scan head is locked by the lock switch.
Mirror unit abnormality
The scanner wire is disconnected.
The origin detection sensor abnormality
Mirror motor harness abnormality
Mirror unit abnormality
The scanner wire is disconnected.
The origin detection sensor abnormality
Mirror motor harness abnormality
Check
and
remedy
and
remedy
Check to confirm that the scan head lock
switch is released.
Use SIM 1-1 to check the mirror
reciprocating operations.
When the mirror does not feed.
Check for disconnection of the scanner wire.
Check the harness and the connector
between the mirror motor and the MCU
PWB.
Replace the mirror unit.
Replace the MCU PWB.
When the mirror does feed.
Use SIM 1-2 to check the mirror home
position sensor.
switch is released.
Use SIM 1-1 to check the mirror
reciprocating operations.
When the mirror does not feed.
Check for disconnection of the scanner wire.
Check the harness and the connector
between the mirror motor and the MCU
PWB.
Replace the mirror unit.
Replace the MCU PWB.
When the mirror does feed.
Use SIM 1-2 to check the mirror home
position sensor.
L3
00
Content Scanner return trouble
Detail
When the mirror base is returned for the
specified time (6 sec) in mirror initializing
after turning on the power, the mirror home
position sensor (MHPS) does not turn ON.
Or when the mirror base is returned for the
specified time (about 6 sec) after start of
copy return, the mirror home position sensor
(MHPS) does not turn ON.
specified time (6 sec) in mirror initializing
after turning on the power, the mirror home
position sensor (MHPS) does not turn ON.
Or when the mirror base is returned for the
specified time (about 6 sec) after start of
copy return, the mirror home position sensor
(MHPS) does not turn ON.
Cause
Mirror unit abnormality
Scanner wire disconnection
Origin detection sensor abnormality
Mirror motor harness abnormality
Scanner wire disconnection
Origin detection sensor abnormality
Mirror motor harness abnormality
Check
and
remedy
and
remedy
Use SIM 1-1 to check the mirror
reciprocating operations.
When the mirror does not return.
Check for disconnection of the scanner wire.
Check the harness and the connector
between the mirror motor and the MCU
PWB.
Replace the mirror unit.
Replace the MCU PWB.
When the mirror does feed.
Use SIM 1-2 to check the mirror home
position sensor.
reciprocating operations.
When the mirror does not return.
Check for disconnection of the scanner wire.
Check the harness and the connector
between the mirror motor and the MCU
PWB.
Replace the mirror unit.
Replace the MCU PWB.
When the mirror does feed.
Use SIM 1-2 to check the mirror home
position sensor.
L4
01
Content Main motor lock detection
Detail
Detail
When the main motor encoder pulse is not
detected for 100 msec.
detected for 100 msec.
Cause
Main motor unit abnormality
Improper connection or disconnection the
main motor and the harness.
MCU PWB abnormality
Improper connection or disconnection the
main motor and the harness.
MCU PWB abnormality
Check
and
remedy
and
remedy
Use SIM 25-01 to check the main motor
operations.
Check connection of the main motor
harness/connector.
Replace the main motor.
Replace the MCU PWB.
operations.
Check connection of the main motor
harness/connector.
Replace the main motor.
Replace the MCU PWB.
Main
code
code
Sub
code
Details of trouble
L4
31
Content Fan motor lock detection trouble
Detail
Detail
The fan does not rotate.
When sampling is made in an interval of
50msec, the normal signals are not detected
5 times continuously in 1 sec.
When sampling is made in an interval of
50msec, the normal signals are not detected
5 times continuously in 1 sec.
Cause
FAN trouble or harness contact trouble and
disconnection.
disconnection.
Check
and
remedy
and
remedy
Check connection of the FAN harness and
connector.
Replace the FAN.
Replace the MCU PWB.
connector.
Replace the FAN.
Replace the MCU PWB.
L6
10
Content Polygon motor lock detection
Detail
Detail
The lock signal (specified rpm signal) does
not return within a certain time (about 20
sec) from starting the polygon motor
rotation.
not return within a certain time (about 20
sec) from starting the polygon motor
rotation.
Cause
Polygon motor unit abnormality
Improper connection or disconnection of the
polygon motor and the harness.
MCU PWB abnormality
Improper connection or disconnection of the
polygon motor and the harness.
MCU PWB abnormality
Check
and
remedy
and
remedy
Use SIM 61-1 to check the polygon motor
operations.
Check connection of the polygon motor
harness/connector.
Replace the polygon motor.
Replace the MCU PWB.
operations.
Check connection of the polygon motor
harness/connector.
Replace the polygon motor.
Replace the MCU PWB.
U1
03
Content Network board battery error
Details
The RTC backup battery voltage on network
PWB falls.
PWB falls.
Cause
The RTC backup battery voltage on network
PWB falls.
PWB falls.
Check
and
remedy
and
remedy
Check voltage of the RTC back up battery.
Replace the battery.
Replace the battery.
U2
00
Content EEPROM read/write error (Serial
communication error)
Detail
EEPROM access process error
Cause
EEPROM abnormality
Check
and
remedy
and
remedy
Check that the EEPROM is properly set.
Use SIM 16 to cancel the trouble.
Replace the MCU PWB.
Use SIM 16 to cancel the trouble.
Replace the MCU PWB.
11
Content Counter check sum error (EEPROM)
Detail
Check sum error of the counter area in the
EEPROM
EEPROM
Cause
EEPROM abnormality
Check
and
remedy
and
remedy
Check that the EEPROM is properly set.
Use SIM 16 to cancel the trouble.
Replace the MCU PWB.
Use SIM 16 to cancel the trouble.
Replace the MCU PWB.
U9
99
Content Panel language error
Detail
Detail
Improper language data
Cause
A improper language data was downloaded.
Check
and
remedy
and
remedy
Update LCD data.
Main
code
code
Sub
code
Details of trouble
1
1
1
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