MX3114N TROUBLESHOOTING 7 – 18
F2-78
Registration image density
sensor trouble (Transfer belt
substrate reflection rate abnormality)
F2-91
High density process control high
voltage error (K)
F2-92
High density process control high
voltage error (C)
F2-93
High density process control high
voltage error (M)
F2-94
High density process control high
voltage error (Y)
F3-12
Paper feed tray 1 lift operation trouble
F3-22
Paper feed tray 2 lift operation trouble
F6-00
MFPC PWB - FAX communication
trouble
F6-01
FAX control PWB EEPROM read/write
error
Trouble content
Detail
PCU
Cause
Image density (registration) sensor trouble (Sensor
sensitivity adjustment trouble).
PCU PWB trouble.
Image density (resist) sensor connector and harness
connection trouble
Image density (registration) sensor dirt.
Transfer belt dirt, scratch.
Check & Remedy
Replace the image density (registration) sensor.
Replace the PCU PWB.
Check connection of the connector and the harness
of the image density (resist) sensor.
Clean the image density (registration) sensor.
Clean or replace the transfer belt.
Use SIM44-2 to perform the sensibility adjustment of
the process control sensor.
Trouble content
For the production process (Not occur in the market.)
Detail
PCU
Cause
—
Check & Remedy
—
Trouble content
For the production process (Not occur in the market.)
Detail
PCU
Cause
—
Check & Remedy
—
Trouble content
For the production process (Not occur in the market.)
Detail
PCU
Cause
—
Check & Remedy
—
Trouble content
For the production process (Not occur in the market.)
Detail
PCU
Cause
—
Check & Remedy
—
Trouble content
Detail
PCU
Cause
LUD1 is not turned ON within the specified time.
CLUD1 sensor trouble.
Paper feed tray 1 lift unit trouble.
PCU PWB trouble.
Sensor harness and connector connection trouble
Check & Remedy
Check connection of the harness and the connector
of LUD1.
Replace the lift-up unit.
Replace the PCU PWB.
Trouble content
LUD2 does not turn ON within the specified time.
Detail
PCU
Cause
LUD2 does not turn ON within the specified time.
CLUD2 sensor trouble.
Paper feed tray 2 lift unit trouble.
PCU PWB trouble.
Sensor harness and connector connection trouble
Check & Remedy
Check the harness and the connector of LUD2.
Replace the lift-up unit.
Replace the PCU PWB.
Trouble content
MFP - FAX communication establishment error /
Framing / Parity / Protocol error
Section
MFP
Case 1
Cause
FAX control PWB trouble.
Check
and
Remedy
Replace the FAX control PWB.
Case 2
Cause
FAX control PWB - MFPC PWB connector and
harness trouble
Check
and
Remedy
Check the connector and the harness between the
FAX control PWB and the MFPC PWB.
Case 3
Cause
FAX control PWB - Mother board connector and
harness trouble
Check
and
Remedy
Check the connector and the harness between the
FAX control PWB and the mother board.
Case 4
Cause
FAX control PWB ROM trouble / ROM pin breakage
Check
and
Remedy
Check the ROM of the FAX control PWB.
Trouble content
FAX control PWB EEPROM access error (Read and
write)
Section
FAX
Case 1
Cause
FAX control PWB EEPROM trouble
Check
and
Remedy
Check that no trouble occurs after replacement of
EEPROM. Execute the memory check of SIM66-3 to
insure that EEPROM can be accessed.
Case 2
Cause
FAX control PWB EEPROM access circuit trouble
Check
and
Remedy
Replace the FAX control PWB.