Sharp AR-5520

AR-5520 TROUBLE CODE LIST 9-2
E7 16 Content Abnormal laser output
Detail When the laser output is stopped, HSYNC is
detected.
Cause Laser abnormality
MCU PWB abnormality.
Check
and
remedy
Replace the LSU.
Replace the MCU PWB.
F2 02 Content Toner supply abnormality
Detail When toner near end is detected with the toner
supply time of 50% or less.
When the toner supply time exceeds 300%.
Cause ATC sensor abnormality
Improper supply
Check
and
remedy
Replace the toner cartridge.
Replace the developing unit.
04 Content •Improper cartridge (Destination error, life cycle
error)
•Identific t ion error
•Model error
•Type error
•Destination error
•Data abnormality
•Misc error
Detail •The destination of the machine differs from
that of the CRUM.
•The trade mark code of the CRUM differs.
•The company code of the CRUM differs.
•The boot program model code does not
coincide with the CRUM model code.
•When the CRUM type is other than genuine/
conversion/production rotation.
•The machine destination differs from the
CRUM destination.
•When an error value is included in the initial
check information.
•When the max. toner supply time is 00.
•When the print hard stop is 00.
•When the Misc information is other than "Not
used (FFh)."
Cause CRUM chip defect
Improper developing unit
Check
and
remedy
Replace the toner dartridge.
Replace the developing unit.
40 Content ATC sensor abnormality
Detail ATC sensor value abnormality
Cause Connector connection trouble
Toner cartridge installation trouble
Sensor breakdown
Check
and
remedy
Connect the connector again.
Install the toner cartridge again.
Replace the toner cartridge with a normal one.
Main
code
Sub
code
Details of trouble
F5 02 Content Copy lamp lighting abnormality
Detail The copy lamp does not turn on.
Cause Copy lamp abnormality
Copy lamp harness abnormality
CCD PWB harness abnormality.
Check
and
remedy
Use SIM 5-3 to check the copy lamp
operations.
When the copy lamp lights up.
Check the harness and the connector between
the CCD unit and the MCU PWB.
When the copy lamp does not light up.
Check the harness and the connector between
the copy lamp unit and the MCU PWB.
Replace the copy lamp unit.
Replace the MCU PWB. "
H2 00 Content Thermistor open
Detail The thermistor is open.
The fusing unit is not installed.
Cause Thermistor abnormality
Control PWB abnormality
Fusing section connector disconnection
The fusing unit is not installed.
Check
and
remedy
Check the harness and the connector between
the thermistor and the PWB.
Use SIM 14 to clear the self diagnostic display.
H3 00 Content Heat roller high temperature detection
Detail The fusing temperature exceeds 240C°.
Cause Thermistor abnormality
Control PWB abnormality
Fusing section connector disconnection.
Check
and
remedy
Use SIM 5-02 to check the heater lamp
blinking operation.
When the lamp blinks normally.
Check the thermistor and its harness.
Check the thermistor input circuit on the control
PWB.
When the lamp keeps ON.
Check the power PWB and the lamp control
circuit on the MCU PWB.
Use SIM 14 to clear the self diagnostic display.
Main
code
Sub
code
Details of trouble