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MX-4101N SELF DIAG AND TROUBLE CODE 7 – 9
E7-08
MFP memory compatibility error
(MFP PWB)
(MFP PWB)
E7-09
Wrong memory size
(Std./Ext. memory) (MFP PWB)
(Std./Ext. memory) (MFP PWB)
E7-10
Shading error (Black correction)
E7-11
Shading error (White correction)
E7-14
CCD-ASIC error
E7-20
LSU laser detection error (K)
E7-21
LSU laser detection error (C)
E7-22
LSU laser detection error (M)
E7-23
LSU laser detection error (Y)
Trouble content
Detail
MFP
Cause
A DIMM of different specifications is installed to the
MFP memory slot.
DIMM trouble.
MFP memory slot.
DIMM trouble.
Check & Remedy
Check the installed DIMM.
Replace the DIMM.
Replace the DIMM.
Trouble content
Detail
MFP
Cause
A DIMM which is not 512MB is inserted into the
default slot.
DIMM trouble.
Insufficient memory size.
default slot.
DIMM trouble.
Insufficient memory size.
Check & Remedy
Replace the DIMM.
Trouble content
Detail
SCU
Cause
Abnormality in the CCD black scan level when the
scanner lamp is turned OFF.
Improper installation of the harness to the CCD unit.
CCD unit abnormality.
SCU PWB abnormality.
scanner lamp is turned OFF.
Improper installation of the harness to the CCD unit.
CCD unit abnormality.
SCU PWB abnormality.
Check & Remedy
Check connection of the harness to the CCD unit.
Check the CCD unit.
Check the SCU PWB.
Check the CCD unit.
Check the SCU PWB.
Trouble content
Detail
SCU
Cause
Abnormality in the CCD white reference plate scan
level when the scanner lamp is turned ON.
Improper installation of the harness to the CCD unit.
Dirt on the mirror, lens, and the reference white plate.
Scanner lamp lighting trouble.
CCD unit abnormality.
SCU PWB abnormality.
level when the scanner lamp is turned ON.
Improper installation of the harness to the CCD unit.
Dirt on the mirror, lens, and the reference white plate.
Scanner lamp lighting trouble.
CCD unit abnormality.
SCU PWB abnormality.
Check & Remedy
Check connection of the harness to the CCD unit.
Check connection of the harness to the scanner
lamp unit.
Clean the mirror, the lens, and the reference white
plate.
Check the CCD unit.
Check the SCU PWB.
Check connection of the harness to the scanner
lamp unit.
Clean the mirror, the lens, and the reference white
plate.
Check the CCD unit.
Check the SCU PWB.
Trouble content
Detail
SCU
Cause
SCU PWB trouble.
Check & Remedy
Check the SCU PWB.
Replace the SCU PWB.
Replace the SCU PWB.
Trouble content
Detail
PCU
Cause
Optical axis shift.
Reduced laser power, lighting error, laser diode
trouble.
BD PWB trouble.
Harness and connector trouble between the LD/BD
PWB and the LSU cnt PWB.
Reduced laser power, lighting error, laser diode
trouble.
BD PWB trouble.
Harness and connector trouble between the LD/BD
PWB and the LSU cnt PWB.
Check & Remedy
Use SIM61-1 to check the operation of the LSU.
Check the PWB and connection of the harness in the
LSU.
Replace the LSU.
Check the PWB and connection of the harness in the
LSU.
Replace the LSU.
Trouble content
Detail
PCU
Cause
Reduced laser power, lighting error, laser diode
trouble.
Harness and connector trouble between the LD PWB
and the LSU cnt PWB.
trouble.
Harness and connector trouble between the LD PWB
and the LSU cnt PWB.
Check & Remedy
Use SIM61-1 to check the operation of the LSU.
Check the PWB and connection of the harness in the
LSU.
Replace the LSU.
Check the PWB and connection of the harness in the
LSU.
Replace the LSU.
Trouble content
Detail
PCU
Cause
Reduced laser power, lighting error, laser diode
trouble.
Harness and connector trouble between the LD PWB
and the LSU cnt PWB.
trouble.
Harness and connector trouble between the LD PWB
and the LSU cnt PWB.
Check & Remedy
Use SIM61-1 to check the operation of the LSU.
Check the PWB and connection of the harness in the
LSU.
Replace the LSU.
Check the PWB and connection of the harness in the
LSU.
Replace the LSU.
Trouble content
Detail
PCU
Cause
Reduced laser power, lighting error, laser diode
trouble.
Harness and connector trouble between the LD PWB
and the LSU cnt PWB.
trouble.
Harness and connector trouble between the LD PWB
and the LSU cnt PWB.
Check & Remedy
Use SIM61-1 to check the operation of the LSU.
Check the PWB and connection of the harness in the
LSU.
Replace the LSU.
Check the PWB and connection of the harness in the
LSU.
Replace the LSU.
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