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MX-2300/2700 N/G SELF DIAG AND TROUBLE CODE 8 – 12
E7-50 Engine connection trouble
E7-55 PWB information sum error (Engine
detection)
E7-60 Controller connection trouble (Engine
detection)
E7-61 Controller connection trouble
(Engine)
E7-62 Controller connection trouble
(Scanner)
E7-65 PWB information sum error (Control-
ler detection)
E7-70 Scanner connection trouble
E7-75 PWB information sum error (Scanner
detection)
E7-80 Communication trouble between the
controller and the scanner
Trouble content
Unknown PWB identification information is detected in
the PCU PWB.
Section
PCU
Case 1
Cause
A PWB which is incompatible with the machine
specifications is connected.
Check
and
remedy
1)
Replace the PCU PWB.
2)
Replace the LSU PWB.
Case 2
Cause
A firmware which is incompatible with the machine
specifications is used.
Check
and
remedy
Check the kind and the version of the firmware.
Trouble content
EEPROM PWB information sum error
Section
PCU
Case 1
Cause
1)
EEPROM device error
2)
EEPROM device contact failure
3)
Device access error due to noises
Check
and
remedy
Replace the PCU PWB.
Trouble content
Unknown PWB kind information is detected in the
MFPcnt PWB.
A PWB/firmware which is not compatible with the
machine specifications is connected.
Section
MFP
Case 1
Cause
Controller PWB trouble
Check
and
remedy
Replace the controller PWB.
Case 2
Cause
A firmware which is not compatible with the machine
specifications is applied.
Check
and
remedy
Check the kind and the version of the firmware.
Trouble content
MFPcnt PWB connection trouble
Compatibility trouble between the controller and the
engine
Section
MFP
Case 1
Cause
Combination trouble of the controller PWB and the
engine
Check
and
remedy
Check the controller PWB.
Check the combination between the controller PWB
and the engine.
Trouble content
Controller connection trouble
Compatibility trouble between the controller and the
scanners
Section
MFP
Case 1
Cause
Combination trouble between the controller PWB and
the engine
Check
and
remedy
Replace the controller PWB.
Check the combination between the controller PWB
and the engine.
Trouble content
EEPROM PWB information sum error
Section
MFP
Case 1
Cause
1)
EEPROM device trouble
2)
EEPROM device contact failure
3)
Device access error due to noises
Check
and
remedy
Replace the MFPcnt PWB.
Trouble content
Unknown identification information is detected in the
SCU PWB.
Section
SCU
Case 1
Cause
SCU PWB trouble
Check
and
remedy
Replace the SCU PWB.
Case 2
Cause
A firmware which is incompatible with the machine
specifications is connected.
Check
and
remedy
Check the kind and the version of the firmware.
Trouble content
EEPROM PWB information sum error
Section
SCU
Case 1
Cause
1)
EEPROM device trouble
2)
EEPROM device contact failure
3)
Device access error due to noises
Check
and
remedy
Replace the scanner control PWB.
Trouble content
Communication trouble between the MFP and the
scanner MFP detection
Communication establishment error/Framing/Parity/
Protocol error
Section
MFP
Case 1
Cause
SCU PWB connector connection trouble
Check
and
remedy
Check the connector connection between the SCU
PWB and the MFPcnt PWB.
Case 2
Cause
Harness trouble between the SCU PWB and the
MFPcnt PWB
Check
and
remedy
Check the harness between the SCU PWB and the
MFPcnt PWB.
Case 3
Cause
Broken connector pin of the SCU PWB mother board
Check
and
remedy
Check grounding of the machine.