
MX-M700N SELF DIAG AND TROUBLE CODE 8 – 15
F3-12
Machine tray 1 lift-up trouble
F3-22
Machine tray 2 lift-up trouble
F3-32
Machine tray 3 lift-up trouble
F3-42
Machine tray 4 lift-up trouble
F4-38
38V voltage trouble
F6-00
MFP control-FAX communication
trouble (MFP control detection)
F6-01
FAX Flash memory trouble
(MFP control detection)
Details
PED does not turn on within the specified time.
LUD does not turn on within the specified time.
The trouble occurs 3 times continuously that the
upper limit sensor does not turn on by lift-up
operation for 21sec when inserting a tray or for
2sec when printing.
For the first and the second times, guide the user
to pull out the tray in case of a tray size error.
Section
Engine
Case 1
Cause
PED, LUD trouble No. 1 tray lift-up motor trouble
Improper connection of the harness of the PCU
PWB, the lift-up unit, and the paper feed unit
Check and
remedy
Check the harness and connector of PED and
LUD
Lift-up trouble unit check.
Use SIM 15 to cancel the trouble.
Details
MCPED does not turn on within the specified time.
MCLUD does not turn on within the specified time.
The trouble occurs 3 times continuously that the
upper limit sensor does not turn on by lift-up
operation for 21sec when inserting a tray or for
2sec when printing.
For the first and the second times, guide the user
to pull out the tray in case of a tray size error.
Section
Engine
Case 1
Cause
MCPED, MCLUD trouble No. 2 tray lift-up motor
trouble
Improper connection of the harness of the PCU
PWB, the lift-up unit, and the paper feed unit
Check and
remedy
Check the harness and the connector of MCPED
and MCLUD.
Lift-up trouble unit check. Use SIM 15 to cancel
the trouble.
Details
MCPED does not turn on within the specified time.
MCLUD does not turn on within the specified time.
The trouble occurs 3 times continuously that the
upper limit sensor does not turn on by lift-up
operation for 10sec when inserting a tray or for
2sec when printing.
For the first and the second times, guide the user
to pull out the tray in case of a tray size error.
Section
Engine
Case 1
Cause
MCPED, MCLUD trouble No. 3 tray lift-up motor
trouble
Improper connection of the harness of the PCU
PWB, the lift-up unit, and the paper feed unit
Check and
remedy
Check the harness and the connector of MCPED
and MCLUD.
Lift-up trouble unit check
Details
MCPED does not turn on within the specified time.
MCLUD does not turn on within the specified time.
The trouble occurs 3 times continuously that the
upper limit sensor does not turn on by lift-up
operation for 10sec when inserting a tray or for
2sec when printing.
For the first and the second times, guide the user
to pull out the tray in case of a tray size error.
Section
Engine
Case 1
Cause
MCPED, MCLUD trouble No. 4 tray lift-up motor
trouble.
Improper connection of the harness of the PCU
PWB, the lift-up unit, and the paper feed unit.
Check and
remedy
Check the harness and the connector of MCPED
and MCLUD.
Lift-up trouble unit check.
Details
38V voltage falls or rises.
When the 38V MON signal is not turned on in
50ms after turning on the INTRP.
Section
Engine
Case 1
Cause
Improper connection or disconnection of the
connector and the harness
Check and
remedy
Check the connector and the harness of the power
line.
Case 2
Cause
PCU PWB trouble
Power unit trouble
Check and
remedy
Check 38V power source in the power unit and the
PCU PWB.
Details
The booting sequence by the command line
(9600bps, serial) is not completed normally.
Communication establishment error/ framing/
parity/protocol error
Section
FAX
Case 1
Cause
Defective connection of the slave unit PWB
connector.
Defective harness between the slave unit PWB
and the MFP control PWB.
Slave unit PWB mother board connector pin
breakage.
Check and
remedy
Check connection of the connector between the
slave unit PWB and the MFP control PWB and the
harness.
Case 2
Cause
Slave unit ROM trouble/no ROM/ Reversed
insertion of ROM/ ROM pin breakage
Check and
remedy
Check the ROM on the slave unitPWB.
Details
The flash memory inserted to the
FAX I/F PWB could not be cleared.
Section
FAX
Case 1
Cause
The flash memory could not be cleared.
Check and
remedy
FAX image save flash memory check.
Use SIM 66-10 to clear the expansion flash
memory.