Sharp Digital Laser Copier/Printer AR-5127 User Manual
Page 74
AR-5127 TROUBLE CODE LIST 9 - 7
L1
00
Content
Scanner feed trouble
Details
Scanner feed is not completed within the
specified time.
Cause
Mirror unit defect
Scanner wire disconnection
Origin detection sensor error
Mirror motor harness abnormality
Check
and
remedy
Check the scanning operation with SIM 1-
1.
Mirror base feed trouble
Check for disconnection of the scanner
wire.
Check the harness and connector
between the mirror motor and the MCU
PWB.
Replace the mirror unit.
Replace the MCU PWB.
When the mirror feeds:
Check the mirror home position sensor
with SiM 1-2.
L3
00
Content
Scanner return trouble
Details
Scanner return is not completed within the
specified time.
"When OC copying with the mirror at the
home position, the mirror is not in the
home position. "
Cause
Mirror unit defect
The scanner wire is disconnected.
Origin detection sensor error
Mirror motor harness abnormality
Check
and
remedy
Check the scanning operation with SIM 1-
1.
Mirror base return trouble
Check for disconnection of the scanner
wire.
Check the harness and connector
between the mirror motor and the MCU
PWB.
Replace the mirror unit.
Replace the MCU PWB.
When the mirror feeds:
Check the mirror home position sensor
with SiM 1-2.
L4
01
Content
Main motor lock
Details
The main motor does not rotate.
The motor lock signal is detected for 1sec
or more after the main motor rotates.
The motor lock signal is detected for 1sec
during rotation of the main motor.
Cause
Main motor defect
Main motor connection harness trouble or
disconnection
MCU PWB failure
Check
and
remedy
Check the main motor operation with SIM
25-1.
Check connection of the main motor
harness and connector.
Replace the main motor.
Replace the MCU PWB.
Trouble
code
Details of trouble
Main
code
Sub
code
L4
11
Content
Shifter motor trouble
Details
The shifter home position detection signal
is not detected when the shifter is
operating.
Cause
Shifter motor trouble or harness
connection trouble and disconnection
Shifter home position sensor trouble
Check
and
remedy
Check the shift motor operation with SIM
3-11.
Check connection of the shifter motor
harness/connector.
Replace the shifter motor.
Replace the MCU PWB.
L6
10
Content
Polygon motor lock trouble
Details
The polygon motor does not rotate.
The motor lock signal is detected for 6sec
or more after the polygon motor rotates.
The motor lock signal is detected for 1sec
during rotation of the polygon motor.
Cause
Polygon motor unit failure
Polygon motor connection harness trouble
or disconnection
MCU PWB failure
Check
and
remedy
Check the polygon motor operation with
SIM 61-1.
Check connector/harness of polygon
motor
Replace the polygon motor.
Replace the MCU PWB.
L8
01
Content
Zero cross detection error
Details
The zero cross signal is not detected.
Cause
Power failure
MCU PWB abnormality
Check
and
remedy
Check connection of the harness and
connector.
Replace the MCU PWB.
Power unit replacement
U2
04
Content
EEPROM communication error
Details
MCU PWB EEPROM access circuit failure
Cause
EEPROM defective
ICU PWB EEPROM access circuit failure
Check
and
remedy
Check that the EEPROM is properly set.
Clear trouble with SIM 16.
Replace the MCU PWB.
Remarks EEPROM abnormality
11
Content
Counter check sum error
Details
Counter check sum value stored in the
EEPROM is abnormal.
Cause
EEPROM defective
ICU PWB EEPROM access circuit failure
Check
and
remedy
Check that the EEPROM is properly set.
Clear trouble with SIM 16.
Replace the MCU PWB.
Remarks Checksum error in counter data area
12
Content
Adjustment value check sum error
Details
Adjustment value check sum error
(EEPROM)
Cause
EEPROM defective
ICU PWB EEPROM access circuit failure
Check
and
remedy
Check that the EEPROM is properly set.
Clear trouble with SIM 16.
Replace the MCU PWB.
Remarks Checksum error in adjustment value data
area
Trouble
code
Details of trouble
Main
code
Sub
code