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.
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