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MX-7000N SELF DIAG AND TROUBLE CODE 8 – 13
E7-60
Controller connection trouble (Engine
detection)
detection)
E7-61
Controller connection trouble
(Engine)
(Engine)
E7-62
Controller connection trouble
(Scanner)
(Scanner)
E7-65
PWB information sum error
(Controller detection)
(Controller detection)
E7-70
Scanner connection trouble
E7-75
PWB information sum error (Scanner
detection)
detection)
E7-80
Communication trouble between the
MFP and the scanner (MFP detection)
MFP and the scanner (MFP detection)
E7-90
Communication trouble between the
MFP and the PCU (MFP detection)
MFP and the PCU (MFP detection)
EE-EC
Auto developer adjustment trouble
(The sample level for every rotation is
other than 128
(The sample level for every rotation is
other than 128
± 10.)
Trouble content
Unknown PWB kind information is detected in the
MFPcnt PWB.
MFPcnt PWB.
Section
MFP
Case 1
Cause
A PWB which is not compatible with the machine
specifications is connected.
specifications is connected.
Check and
remedy
remedy
Replace the controller PWB.
Case 2
Cause
A firmware which is not compatible with the
machine specifications is applied.
machine specifications is applied.
Check and
remedy
remedy
Check the kind and the version of the firmware.
Trouble content
Controller connection trouble
Compatibility trouble between the controller and
the engine
Compatibility trouble between the controller and
the engine
Section
MFP
Case 1
Cause
Combination trouble of the controller PWB and the
engine
engine
Check and
remedy
remedy
Check the controller PWB.
Check the combination between the controller
PWB and the engine.
Check the combination between the controller
PWB and the engine.
Trouble content
Controller connection trouble
Compatibility trouble between the controller and
the scanners
Compatibility trouble between the controller and
the scanners
Section
MFP
Case 1
Cause
Combination trouble between the controller PWB
and the scanner
and the scanner
Check and
remedy
remedy
Replace the controller PWB.
Check the combination between the controller
PWB and the scanner.
Check the combination between the controller
PWB and the scanner.
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 electrical noises
Check and
remedy
remedy
Replace the MFPcnt PWB.
Trouble content
Unknown PWB identification information is
detected in the SCU PWB.
detected in the SCU PWB.
Section
SCU
Case 1
Cause
SCU PWB trouble
Check and
remedy
remedy
Replace the SCU PWB.
Case 2
Cause
A firmware which is incompatible with the machine
specifications is connected.
specifications is connected.
Check and
remedy
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 electrical noises
Check and
remedy
remedy
Replace the scanner control PWB.
Trouble content
Communication establishment error/Framing/
Parity/Protocol error
Parity/Protocol error
Section
MFP
Case 1
Cause
SCU PWB connector connection trouble
Check and
remedy
remedy
Check the connector connection between the SCU
PWB and the MFPcnt PWB.
PWB and the MFPcnt PWB.
Case 2
Cause
Harness trouble between the SCU PWB and the
MFPcnt PWB
MFPcnt PWB
Check and
remedy
remedy
Check the harness between the SCU PWB and the
MFPcnt PWB.
MFPcnt PWB.
Case 3
Cause
Broken connector pin of the SCU PWB mother
board
board
Check and
remedy
remedy
Check grounding of the machine.
Trouble content
Communication establishment error/Framing/
Parity/Protocol error
Parity/Protocol error
Section
MFP
Case 1
Cause
PCU PWB connector connection trouble
Check and
remedy
remedy
Check the connector connection between the PCU
PWB and the MFPcnt PWB.
PWB and the MFPcnt PWB.
Case 2
Cause
Harness trouble between the PCU PWB and the
MFPcnt PWB
MFPcnt PWB
Check and
remedy
remedy
Check the harness between the PCU PWB and the
MFPcnt PWB.
MFPcnt PWB.
Case 3
Cause
Broken connector pin of the PCU PWB mother
board
board
Check and
remedy
remedy
Check grounding of the machine.
Trouble content
When the automatic development adjustment is
executed, the sample level for each rotation is not
128
executed, the sample level for each rotation is not
128
± 10.
<Detection only with SIM25-2, no trouble memory,
only display>
only display>
Section
PCU
Case 1
Cause
Toner density sensor trouble, charging voltage/
developing voltage trouble, toner density trouble,
developing unit trouble, PCU PWB trouble
developing voltage trouble, toner density trouble,
developing unit trouble, PCU PWB trouble
Check and
remedy
remedy
Use SIM25-2 to execute the auto developer
adjustment.
adjustment.
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