Main
code
Sub
code
Detail of trouble
F2
04
Content
CRUM data read trouble
Detail
Communication error between
CRUM PWB and MCU PWB
Cause
CRUM PWB data error
MCU PWB error
MCU PWB EEPROM error
Disconnection between CRUM
(toner cartridge) and MCU PWB
Check and
remedy
Replace the toner cartridge.
Replace MCU PWB.
Replace MCU PWB EEPROM
Check and fix connection between
CRUM (toner cartridge) and MCU
PWB.
F5
02
Content
Copy lamp error
Detail
Copy lamp voltage detection error
Cause
Power unit trouble
Copy lamp trouble
Inverter trouble
MCU PWB trouble
Check and
remedy
Replace the power unit.
Check the copy lamp ON with SIM
5-3.
Replace the copy lamp.
Replace the inverter.
Replace the MCU PWB.
F6
00
Content
Communication trouble between
MCU and FAX (MCU detection)
Detail
Communication establishment
error, framing error, parity error,
protocol error
Cause
Bad connection of FAX control
PWB connector
Defective harness between FAX
control PWB and MCU PWB.
Motherboard connector pin
breakage
FAX control PWB ROM error, data
error
Check and
remedy
Check connector/harness of FAX
control PWB and MCU PWB.
Check grounding of the machine.
Check FAX control PWB ROM.
10
Content
FAX control PWB trouble
Detail
Communication trouble between
MCU and FAX control WPB
Cause
Bad connection of FAX control
PWB connector
Defective harness between FAX
control PWB and MCU PWB
Motherboard connector pin
breakage
FAX control PWB ROM error/Data
error
Check and
remedy
Check connector/harness between
FAX control PWB and MCU PWB.
Check grounding of the machine.
Check FAX control PWB ROM.
80
Content
FAX control PWB communication
trouble (Protocol)
Detail
Communication trouble between
MCU and FAX control PWB
(Protocol error)
Main
code
Sub
code
Detail of trouble
F6
80
Cause
Bad connection of FAX control
PWB connector
Defective harness between FAX
control PWB and MCU PWB
Motherboard connector pin
breakage
FAX control PWB ROM error/Data
error
Check and
remedy
Check connector/harness between
FAX control PWB and MCU PWB.
Check grounding of the machine.
Check FAX control PWB ROM.
81
Content
FAX control PWB communication
trouble (Parity)
Detail
Communication trouble between
MCU and FAX control PWB
(Parity error)
Cause
Bad connection of FAX control
PWB connector
Defective harness between FAX
control PWB and MCU PWB
Motherboard connector pin
breakage
FAX control PWB ROM error/Data
error
Check and
remedy
Check connector/harness between
FAX control PWB and MCU PWB.
Check grounding of the machine.
Check FAX control PWB ROM.
82
Content
FAX control PWB communication
trouble (Overrun)
Detail
Communication trouble between
MCU and FAX control PWB
(Overrun error)
Cause
Bad connection of FAX control
PWB connector
Defective harness between FAX
control PWB and MCU PWB
Motherboard connector pin
breakage
FAX control PWB ROM error/Data
error
Check and
remedy
Check connector/harness between
FAX control PWB and MCU PWB.
Check grounding of the machine.
Check FAX control PWB ROM.
84
Content
FAX control PWB communication
trouble (Framing)
Detail
Communication trouble between
MCU and FAX control PWB
(Framing error)
Cause
Bad connection of FAX control
PWB connector
Defective harness between FAX
control PWB and MCU PWB
Motherboard connector pin
breakage
FAX control PWB ROM error/Data
error
Check and
remedy
Check connector/harness between
FAX control PWB and MCU PWB.
Check grounding of the machine.
Check FAX control PWB ROM.
AR-162 TROUBLE CODE LIST – 4