Sharp MX-M314N Service Manual

MX-M264U TROUBLESHOOTING 7 – 11
F1-20 Finisher alignment operation trouble
R
F1-29 Finisher cooling fan motor
abnormality
F1-37 Finisher data backup RAM error
F1-50 Main unit - Finisher combination error
F1-95 Paper exit option configuration error
F2-39 Process thermistor trouble
F2-40 Toner density sensor trouble
F2-58 Temperature/humidity sensor trouble
(HUD_M/TH_M)
F2-64 Toner supply operation trouble
F2-70 Improper toner cartridge detection
Trouble content
Detail PCU
Cause Finisher paper alignment motor lock.
Motor speed abnormality.
Over-current to the motor.
Finisher control PWB trouble.
Home position sensor trouble.
Check & Remedy Use SIM3-3 to check the operation of the paper
alignment motor R.
Use SIM3-2 to check the operation of the home
position sensor.
Replace the finisher control PWB.
Replace the paper alignment motor R.
Replace the home position sensor.
Trouble content Finisher cooling fan motor abnormality
Detail MFP
Cause Motor lock
Motor harness short/open.
Finisher control PWB trouble.
Harness/connector connection trouble.
Check & Remedy Use SIM3-3 to check the operation of the finisher
cooling fan (FCF).
Check connection from the finisher control PWB to
the motor.
Replace the finisher control PWB.
Replace the fan motor.
Trouble content
Detail PCU
Cause Finisher control PWB trouble.
Malfunction due to noises
Check & Remedy Replace the finisher control PWB.
Readjust the finisher. (Use SIM3-10, Finisher control
PWB DIP SW adjustment.)
Trouble content
Detail PCU
Cause The finisher which is not supported by the main unit
model is installed.
Finisher control PWB trouble.
Check & Remedy Install a proper finisher.
Replace the finisher control PWB.
Trouble content
Detail PCU
Cause The paper exit option configuration is improper.
Check & Remedy Install a proper option.
Trouble content
Detail PCU
Cause Process thermistor trouble.
Process thermistor harness connection trouble.
PCU PWB trouble.
Check & Remedy Replace the process thermistor.
Check connection of the process thermistor harness
and the connector.
Replace the PCU PWB.
Trouble content
Detail PCU
Cause Toner density sensor output abnormality.
Sensor connector and harness connection trouble.
Developing unit trouble.
PCU PWB trouble.
Check & Remedy Replace the toner density sensor.
Check connection of the sensor connector and the
harness.
Replace the developing unit.
Replace the PCU PWB.
Trouble content
Detail PCU
Cause Temperature/humidity sensor trouble.
Process humidity sensor harness and connector
connection trouble
PCU PWB trouble.
Check & Remedy Replace the temperature/humidity sensor.
Check connection of the temperature/humidity sensor
harness and the connector.
Replace the PCU PWB.
Trouble content
Detail PCU
Cause Toner motor trouble.
Toner density sensor trouble.
Connector/harness trouble.
PCU PWB trouble.
Toner cartridge trouble.
Developing unit trouble.
Toner transport pipe section trouble
Check & Remedy Replace the toner motor.
Replace the toner density sensor.
Connector and harness check.
Replace the PCU PWB.
Replace the toner cartridge.
Replace the developing unit.
Check the toner transport pipe section.
Trouble content
Detail PCU
Cause An improper toner cartridge is inserted. (The main
unit detects a toner cartridge of a different
specification.)
Toner cartridge trouble.
PCU PWB trouble.
Check & Remedy Replace the toner cartridge.
Replace the PCU PWB.

Sharp MX-M314N Specifications

General

Print Technology	Laser
Print Speed	31 ppm
Standard Paper Capacity	1100 sheets
Duplex Printing	Yes
Max Scan Resolution	600 x 600 dpi
Copy Speed	31 cpm
Max Copy Resolution	600 x 600 dpi
Fax Capability	Optional
Network Connectivity	Ethernet
Functions	Print, Copy, Scan, Fax
Warm-up Time	20 seconds
Fax Transmission Speed	33.6 Kbps
Max Paper Size	A3
Scanner Type	Color
Display	7-inch color touchscreen
Original Size	A3
Operating System Compatibility	Windows, Mac, Linux