Sharp MX-FN10, Service Manual

Page: 39 / 56

MX-FN10 SELF DIAG MESSAGE AND TROUBLE CODE 9 – 3
5. Load tray
Case4 Cause Rear alignment plate HP sensor
Check &
Remedy Measure the voltage at TP32 on the finisher
control PWB to confirm that it is 1V or less
when transmitting, and 3.3V

5% when
interrupted. If the voltage is outside the range,
replace the sensor.
Case5 Cause Electric cable, connector trouble
Check &
Remedy Check conduction between connector
terminals. If there is no conduction, replace
the electric cable.
Case6 Cause Finisher control PWB trouble
Check &
Remedy If the motor does not operate properly in the
motor single operation mode, replace the
finisher control PWB. Also in the sensor
check, if it is normal but the trouble still
remains, replace the finisher control PWB.
Phenomenon Poor alignment of paper on the process tray
Case1 Cause Process bundle holding solenoid trouble
Check &
Remedy Check conduction of the coil. If there is no
conduction, replace.
Case2 Cause Electric cable, connector trouble
Check &
Remedy Check conduction between connector
terminals. If there is no conduction, replace
the electric cable.
Case3 Cause Finisher control PWB trouble
Check &
Remedy If the solenoid does not operate properly in
the single operation mode, or if the trouble
remains even tough the solenoid operates
properly, replace the finisher control PWB.
Phenomenon Bundle exit is not performed properly. (The gripper
extension motor does not operate properly.)
Case1 Cause Griper extension motor trouble
Check &
Remedy Check conduction of the coil. If there is no
conduction, replace.
Case2 Cause Gripper extension HP sensor trouble
Check &
Remedy Measure the voltage at TP33 on the finisher
control PWB to confirm that it is 1V or less
when transmitting, and 3.3V

5% when
interrupted. If the voltage is outside the range,
replace the sensor.
Case3 Cause Gripper exit sensor trouble
Check &
Remedy Measure the voltage at TP27 on the finisher
control PWB to confirm that it is 1V or less
when transmitting, and 3.3V

5% when
interrupted. If the voltage is outside the range,
replace the sensor.
Case4 Cause Electric cable, connector trouble
Check &
Remedy Check conduction between connector
terminals. If there is no conduction, replace
the electric cable.
Case5 Cause Finisher control PWB trouble
Check &
Remedy If the motor does not operate properly in the
motor single operation mode, replace the
finisher control PWB. Also in the sensor
check, if it is normal but the trouble still
remains, replace the finisher control PWB.
Phenomenon Paper empty in the process tray cannot be detected.
Case1 Cause Paper detection 2 sensor trouble
Check &
Remedy Measure the voltage at TP26 on the finisher
control PWB to confirm that it is 1V or less
when transmitting, and 3.3V

5% when
interrupted. If the voltage is outside the range,
replace the sensor.
Case2 Cause Electric cable, connector trouble
Check &
Remedy Check conduction between connector
terminals. If there is no conduction, replace
the electric cable.
Phenomenon Poor alignment of paper on the process tray
(The alignment plate motor does not operate
properly.)
Case3 Cause Finisher control PWB trouble
Check &
Remedy When the sensor is turned ON/OFF, if the
phenomenon still remains though the sensor
level is changed, replace the finisher control
PWB.
Phenomenon Paper surface detection is not performed properly.
(The load tray lift motor does not operate properly.)
Case1 Cause Load tray lift motor trouble
Check &
Remedy Check conduction of the coil. If there is no
conduction, replace.
Case2 Cause Load tray clock sensor trouble
Check &
Remedy Measure the voltage at TP23 on the finisher
control PWB to confirm that it is 1V or less
when transmitting, and 3.3V

5% when
interrupted. If the voltage is outside the range,
replace the sensor.
Case3 Cause Load tray upper limit sensor trouble
Check &
Remedy Measure the voltage at TP35 on the finisher
control PWB to confirm that it is 1V or less
when transmitting, and 3.3V

5% when
interrupted. If the voltage is outside the range,
replace the sensor.
Case4 Cause Load tray lower limit sensor trouble
Check &
Remedy Measure the voltage at TP28 on the finisher
control PWB to confirm that it is 1V or less
when transmitting, and 3.3V

5% when
interrupted. If the voltage is outside the range,
replace the sensor.
Case5 Cause Load tray intermediate sensor trouble
Check &
Remedy Measure the voltage at TP29 on the finisher
control PWB to confirm that it is 1V or less
when transmitting, and 3.3V

5% when
interrupted. If the voltage is outside the range,
replace the sensor.
Case6 Cause Electric cable, connector trouble
Check &
Remedy Check conduction between connector
terminals. If there is no conduction, replace
the electric cable.
Case7 Cause Finisher control PWB trouble
Check &
Remedy If the motor does not operate properly in the
single operation mode, replace the finisher
control PWB. If the trouble remains even
tough the sensor operates properly in the
sensor check, replace the finisher control
PWB.
Phenomenon Paper surface detection is not performed properly.
(The load tray is not proper.)
Case1 Cause Paper exit paper holding solenoid trouble
Check &
Remedy Check conduction of the coil. If there is no
conduction, replace.
Case2 Cause Paper holding HP sensor trouble
Check &
Remedy Measure the voltage at TP13 on the finisher
control PWB to confirm that it is 1V or less
when transmitting, and 3.3V

5% when
interrupted. If the voltage is outside the range,
replace the sensor.
Case3 Cause Paper holding paper surface detection sensor
trouble
Check &
Remedy Measure the voltage at TP71 on the finisher
control PWB to confirm that it is 1V or less
when transmitting, and 3.3V

5% when
interrupted. If the voltage is outside the range,
replace the sensor.
Case4 Cause Electric cable, connector trouble
Check &
Remedy Check conduction between connector
terminals. If there is no conduction, replace
the electric cable.
Phenomenon Paper empty in the process tray cannot be detected.