Sharp MX-M264N Service Manual

MX-M264U TROUBLESHOOTING 7 – 15
L4-01 Main motor lock trouble
L4-11 Shift motor trouble
L4-30 MFP fan motor trouble
L4-31 Paper exit cooling fan trouble
L4-32 Power source cooling fan trouble
L4-35 Fusing cooling fan trouble
L4-43 Paper exit cooling fan 2 trouble
L4-44 Power cooling fan 2 trouble
L4-56 Fusing cooling fan 2 trouble
L6-10 Polygon motor trouble
Trouble content The motor lock signal is detected during rotation of
the main motor.
Detail PCU
Cause Main motor lock trouble
Harness and connector connection trouble
PCU PWB trouble
Check & Remedy Use SIM6-1 to check the operation of the main motor
lock.
Replace the main motor.
Check connection of the connectors and the harness.
Replace the PCU PWB.
Trouble content No change in the shifter home position sensor signal
is detected in the operation of the shifter initializing.
Detail PCU
Cause Shift motor trouble.
PCU PWB trouble.
Connection trouble of the connector and the harness.
Shifter home position sensor trouble.
Check & Remedy Use SIM6-1 to check the shift operation.
Use SIM30-1 to check the operation of the shifter
home position sensor.
Replace the shift motor.
Replace the PCU PWB.
Check connection of the connector and the harness.
Replace the shifter home position sensor.
Trouble content The motor lock signal is detected during rotation of
the MFP fan motor.
Detail MFP
Cause Fan motor trouble.
Harness connection trouble between the MFPC PWB
and the fan motor.
MFP circuit trouble.
Check & Remedy Use SIM6-2 to check the rotating operation of the fan.
Check the harness and the connector between the
MFPC PWB and the fan motor.
Trouble content The fan operation signal is not detected.
Detail PCU
Cause Paper exit cooling fan trouble.
PCU PWB trouble
Connection trouble of the connector and the harness.
Check & Remedy Check connection of the connectors and the harness.
Use SIM6-2 to check the rotating operation of the fan.
Replace the paper exit cooling fan.
Replace the PCU PWB.
Trouble content The fan operation signal is not detected.
Detail PCU
Cause Power cooling fan trouble.
PCU PWB trouble.
Connection trouble of the connector and the harness.
Check & Remedy Use SIM6-2 to check that the fan is actually rotating.
Replace the power cooling fan.
Replace the PCU PWB.
Check connection of the connectors and the harness.
Trouble content The fan operation signal is not detected.
Detail PCU
Cause Fusing cooling fan trouble.
PCU PWB trouble.
Connection trouble of the connector and the harness.
Check & Remedy Use SIM6-2 to check that the fan is actually rotating.
Replace the fusing cooling fan.
Replace the PCU PWB.
Check connection of the connector and the harness.
Trouble content The fan operation signal is not detected.
Detail PCU
Cause Paper exit cooling fan trouble.
PCU PWB trouble.
Connection trouble of the connector and the harness.
Check & Remedy Replace the fan.
Replace the PCU PWB.
Check the connector and the harness.
Use SIM6-2 to check that the fan is actually rotating.
Trouble content The lock signal is detected while the power cooling
fan is operating.
Detail PCU
Cause Power cooling fan trouble.
PCU PWB trouble.
Connection trouble of the connector and the harness.
Check & Remedy Use SIM6-2 to check that the fan is actually rotating.
Replace the power cooling fan.
Replace the PCU PWB.
Check the connector and the harness.
Trouble content The fan operation signal is not detected.
Detail PCU
Cause Fusing cooling fan 2 trouble
PCU PWB trouble.
Connection trouble of the connector and the harness.
Check & Remedy Use SIM6-2 to check that the fan is actually rotating.
Replace the fusing cooling fan.
Replace the PCU PWB.
Check the connector and the harness.
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.

Sharp MX-M264N Specifications

General

Print Technology	Laser
Functions	Print, Copy, Scan, Fax
Print Speed	26 ppm
Max Print Resolution	600 x 600 dpi
Standard Paper Capacity	1100 sheets
Max Paper Capacity	2100 sheets
Automatic Duplexing	Yes
ADF Capacity	100 sheets
Scan Resolution	600 x 600 dpi
Copy Speed	26 cpm
Copy Resolution	600 x 600 dpi
Connectivity	Ethernet, USB