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MX-M264U TROUBLESHOOTING 7 – 12
F2-74
Toner cartridge CRUM error
F3-12
Paper feed tray 1 lift operation trouble
F3-22
Paper feed tray 2 lift operation trouble
F3-32
Paper feed tray 3 lift operation trouble
F3-42
Paper feed tray 4 lift operation trouble
F6-00
MFPC PWB - FAX communication
trouble
F6-01
FAX control PWB EEPROM read/write
error
F6-04
FAX MODEM operation trouble
F6-21
Improper combination of TEL/LIU
PWB and FAX soft switch
Trouble content
Detail
PCU
Cause
Toner cartridge (CRUM) trouble.
PCU PWB trouble.
Connector and harness trouble between PCU PWB
and toner cartridge
Check & Remedy
Replace the toner cartridge.
Replace the PCU PWB.
Check the connector and the harness between the
PCU PWB and the toner cartridge.
Trouble content
C1LUD is not turned ON within the specified time.
Detail
PCU
Cause
C1LUD is not turned ON within the specified time.
C1LUD 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 C1LUD.
Replace the lift-up unit.
Replace the PCU PWB.
Trouble content
C2LUD does not turn ON within the specified time.
Detail
PCU
Cause
C2LUD does not turn ON within the specified time.
C2LUD 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 C2LUD.
Replace the lift-up unit.
Replace the PCU PWB.
Trouble content
C3LUD does not turn ON within the specified time.
Detail
PCU
Cause
C3LUD does not turn ON within the specified time.
C3LUD sensor trouble.
Paper feed tray 3 lift unit trouble.
PCU PWB trouble.
Sensor harness and connector connection trouble
Check & Remedy
Check the harness and the connector of C3LUD.
Replace the lift-up unit.
Replace the PCU PWB.
Trouble content
C4LUD does not turn ON within the specified time.
Detail
PCU
Cause
C4LUD does not turn ON within the specified time.
C4LUD sensor trouble.
Paper feed tray 4 lift unit trouble.
PCU PWB trouble.
Sensor harness and connector connection trouble
Check & Remedy
Check the harness and the connector of C4LUD.
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.
Trouble content
FAX control PWB MODEM chip operation trouble
Section
FAX
Case 1
Cause
FAX MODEM chip operation trouble.
Check
and
remedy
Replace the FAX control PWB.
Case 2
Cause
The FAX MODEM chip cannot be accessed.
Check
and
Remedy
Replace the FAX control PWB.
Trouble content
Incompatibility between the TEL/LIU PWB and the
FAX control PWB information (soft switch)
Section
MFP
Case 1
Cause
The destination of the TEL/LIU PWB installed is
improper.
Check
and
Remedy
Check the destination of the TEL/LIU PWB.
Case 2
Cause
TEL/LIU PWB trouble.
Check
and
Remedy
Replace the TEL/LIU PWB.