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Sharp MX-2314N Service Manual

Sharp MX-2314N
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MX3114N TROUBLESHOOTING 7 – 24
L6-10 Polygon motor trouble
L8-01 Full wave signal detection error
L8-02 Full wave signal error
L8-20 Communication error of MFPC PWB/
LSU mother board
P1-00 PCI communication error
P1-01 PCI fan error
P1-02 Plasma generating device error
U1-01 Battery trouble
Trouble content The polygon motor does not reach the specified RPM
within the specified time after starting rotation of the
polygon motor.
Detail PCU
Cause Polygon motor trouble.
LSU mother PWB trouble.
Connection trouble of the connector and the harness.
Check & Remedy Use SIM61-1 to check the operation of the polygon
motor.
Check connection of the connector and the harness.
Replace the LSU.
Replace the LSU mother PWB.
Trouble content The full wave signal is not detected.
Detail PCU
Cause PCU PWB trouble.
Power unit trouble.
Connection trouble of the connector and the harness.
Check & Remedy Replace the PCU PWB.
Replace the power unit.
Check connection of the connector and the harness.
Trouble content The full wave signal is not detected.
Detail PCU
Cause
An abnormality in the full wave signal fre-
quency is detected
(The frequency is detected as 65Hz or above,
or 45Hz or less) PCU PWB trouble.
Power unit trouble
Connection trouble of the connector and the
harness
Power frequency wave form abnormality
Check & Remedy
Replace the PCU PWB
Replace the power unit
Check connection of the connector and the
harness
Check the power wave form
Trouble content
Detail MFP
Cause LSU mother board PWB - MFPC PWB connection
trouble.
MFPC PWB trouble.
LSU mother board trouble.
Check & Remedy Check connection between the LSU mother board
PWB and the MFPC PWB.
Check the ground of the main unit.
Replace the MFPC PWB.
Replace the LSU mother board.
Trouble content
Detail MFP
Cause Communication error between the MFPC PWB and
the PCI.
Connection failure of connectors and harness
between the MFPC PWB and the PCI.
MFPC PWB trouble.
PCI control PWB trouble.
Check & Remedy Check connection of the harness and connectors
between the MFPC PWB and the PCI.
Check the MFPC PWB, and replace if necessary.
(Refer to the necessary procedures after replacement
of the MFPC PWB in the Service Manual, and
perform the procedures.)
Check the PCI control PWB, and replace if
necessary.
Trouble content
Detail MFP
Cause The PCI fan operation signal is not detected.
PCI fan trouble.
PCI control PWB trouble.
Check & Remedy Check connection of the connectors and harness
between the PCI fan and the PCI control PWB.
Check the PCI control PWB, and replace if
necessary.
Check the PCI fan, and replace if necessary.
Trouble content
Detail MFP
Cause Connection failure of connectors and harness
between the plasma generating device and the PCI
control PWB.
Plasma generating device trouble.
PCI control PWB trouble.
Check & Remedy Check connection of the connectors and harness
between the plasma generating device and the PCI
control PWB.
Replace the plasma generating device.
Check the PCI control PWB, and replace if
necessary.
Trouble content RTC backup battery voltage fall
Detail MFP
Case 1 Cause 1) Battery life
2) Battery circuit abnormality
Check
and
Remedy
Check to confirm that the battery voltage is about
2.5V or above.
Replace the battery.

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Sharp MX-2314N Specifications

General IconGeneral
Print TechnologyLaser
Print Speed23 ppm
Print Resolution600 x 600 dpi
Scan Resolution600 x 600 dpi
Copy Speed23 cpm
Copy Resolution600 x 600 dpi
Fax Transmission Speed33.6 Kbps
Duplex PrintingYes
ConnectivityUSB, Ethernet
FunctionsPrint, Copy, Scan, Fax
Paper SizeA3, A4, A5, B4, B5
Max Paper SizeA3
Original SizeA3

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