AR-M550/M620/M700 SELF DIAG MESSAGE AND TROUBLESHOOTING 9 - 10
E6 14 Case 1 Trouble
position/
Cause
Defective installation of
the harness to the CIS
unit
Remedy Check the harness
connected to the CIS unit.
Note
Case 2 Trouble
position/
Cause
CIS unit abnormality
Remedy CIS unit check
Note
Case 3 Trouble
position/
Cause
Scanner PWB
abnormality
Remedy Scanner PWB check
Note
Main
code
Sub
code
Title
System data trouble
E7 01 Phenomenon Display Lamp
Message
Details While reading/writing the
HDD system area data,
the HDD returns an error
response or no response
at all for longer than 30
seconds.
Section Controller
Operation
mode
Note
Case 1 Trouble
position/
Cause
No HDD is installed on
the MFP control PWB.
Remedy Check installation status
of the HDD on the MFP
control PWB.
Note
Case 2 Trouble
position/
Cause
HDD does not properly
function.
Remedy • CHECK connection
between the HDD and
MFP control.
• Perform an HDD read/
write test using SIM 62-
2/3.
• Replace HDD.
Note
Case 3 Trouble
position/
Cause
MFP control PWB
abnormality
Remedy Replace the MFP control
PWB.
Note
Main
code
Sub
code
Title
CIS communication trouble
Main
code
Sub
code
Title Laser trouble
E7 02 Phenomenon Display Lamp
Message
Details Laser trouble
The BD signal from the
LSU is kept OFF or ON.
When the polygon motor
rotation is started and
three successive BDT
signals of I/O ASIC are
detected after forced
lighting of laser.
Section Engine
Operation
mode
Note
Case 1 Trouble
position/
Cause
The connector to the LSU
or the harness in the LSU
is disconnected or
broken.
Remedy Check for disconnection
of the connector to the
LSU.
Note
Case 2 Trouble
position/
Cause
The polygon motor does
not rotate properly.
Remedy Check that the polygon
motor rotated properly or
not.
Note
Case 3 Trouble
position/
Cause
The position of the laser
home position sensor in
the LSU is shifted.
Remedy Use SIM 61-1 to check
the LSU operation.
Note
Case 4 Trouble
position/
Cause
A proper voltage is not
supplied to the power line
of the laser.
Remedy Replace the LSU unit.
Note
Case 5 Trouble
position/
Cause
Defective lighting of the
laser emitting diode
Remedy Check lighting of the laser
emitting diode.
Note
Case 6 Trouble
position/
Cause
PCU PWB abnormality
Remedy Replace the PCU PWB.
Note
Case 7 Trouble
position/
Cause
MFP control ASIC PWB
abnormality
Remedy Replace the MFP control
PWB.
Note
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