Sharp MX-M264N Service Manual

MX-M264U TROUBLESHOOTING 7 – 13
F6-30 FAX 1-chip microprocessor access
error (FAX detection)
F6-97 Incompatibility between FAX control
PWB and the main machine
F6-98 Incompatibility between the FAX
control PWB destination and the main
machine destination
H2-00 Thermistor open trouble (TH_UM)
H2-01 Thermistor open trouble (TH_US)
H3-00 Fusing section high temperature
trouble (TH_UM)
H3-01 Fusing section high temperature
trouble (TH_US)
Trouble content FAX 1-chip microprocessor access error (Read and
write)
Section MFP
Case 1 Cause Program writing trouble to the 1-chip microprocessor,
or no program data written.
Check
and
Remedy
Use SIM66-42 to rewrite the 1-chip microprocessor
program.
Case 2 Cause FAX 1-chip microprocessor circuit trouble.
Check
and
Remedy
Replace the FAX control PWB.
Trouble content Incompatibility between FAX control PWB and the
main machine
Section MFP
Case 1 Cause The FAX control PWB installed is improper.
FAX control PWB trouble.
Check
and
Remedy
Install a proper FAX control PWB.
Replace the FAX control PWB.
Trouble content Incompatibility between the FAX control PWB
destination and the main machine destination
Section MFP
Case 1 Cause Incompatibility between the destination information
written into the FAX control PWB EEPROM and that
in the main machine (set with SIM26-6)
Check
and
Remedy
1) Check the destination of the FAX control PWB.
2) Check the destination of the machine. (SIM26-6)
Trouble content Main thermistor open hardware detection trouble
Detail PCU
Cause Main thermistor trouble
PCU PWB trouble
Thermistor connector and harness connection trouble
Fusing section connector connection trouble
Fusing unit not installed
Check & Remedy Use SIM44-14 to check the state of the thermistor.
Replace the thermistor.
Replace the PCU PWB.
Check connection of the thermistor connector and the
harness.
Check the connector in the fusing section.
Trouble content Sub thermistor open hardware detection trouble
Detail PCU
Cause Sub thermistor trouble
PCU PWB trouble
Thermistor connector and harness connection trouble
Fusing section connector connection trouble
Fusing unit not installed
Check & Remedy Use SIM44-14 to check the state of the thermistor.
Replace the thermistor.
Replace the PCU PWB.
Check connection of the thermistor connector and the
harness.
Check the connector in the fusing section.
Trouble content Main heater lamp abnormally high temperature
software detection trouble
Detail PCU
Cause The fusing temperature exceeds the specified level.
Main thermistor trouble
PCU PWB trouble
Thermistor connector and harness connection trouble
Power unit trouble.
Check & Remedy Use SIM44-14 to check the state of the thermistor.
Use SIM5-2 to check the flashing operation of the
heater lamp.
Use SIM14 to cancel the trouble.
Replace the thermistor.
Replace the PCU PWB.
Check connection of the thermistor connector and the
harness.
Replace the power unit.
Trouble content Sub heater lamp abnormally high temperature
software detection trouble
Detail PCU
Cause The fusing temperature exceeds the specified level.
Sub thermistor trouble
PCU PWB trouble
Thermistor connector and harness connection trouble
Power unit trouble.
Check & Remedy Use SIM44-14 to check the state of the thermistor.
Use SIM5-2 to check the flashing operation of the
heater lamp.
Use SIM14 to cancel the trouble.
Replace the thermistor.
Replace the PCU PWB.
Check connection of the thermistor connector and the
harness.
Replace the power unit.

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