2-114 Service Manual
7002-xxx
2
ADF exit sensor flag Check the exit sensor flag to make sure it operates freely and does
not hang or bind. If the flag does not operate correctly and cannot be
made to operate correctly, replace the complete ADF assembly. See
“ADF complete assembly removal” on page 4-15.
Note: Whenever the complete ADF assembly is replaced, it is
necessary to perform scanner registration. See “Scanner
registration” on page 4-4.
If the flag operates correctly, go to step 3.
3
ADF exit sensor Enter the Diagnostics Menu (turn on MFP while holding 3 and 6),
select SCANNER TESTS, and select Sensor Tests. Check the ADF
exit sensor for correct operation.
Note: You can check the ADF exit sensor by moving the exit sensor
flag or by manually feeding a sheet of paper through the ADF.
If the sensor fails the test, go to step 4.
4
Motor driver card Turn the power off and disconnect CN9 on the motor driver card.
Measure the voltages in the table below:
If incorrect, replace the motor driver card.
If the voltage is correct, go to step 5.
5
ADF exit sensor—electrical
checks
Turn the power off and reconnect CN9 to the motor driver card.
Measure the voltages in the table below with the sensor in normal
operation (sensor closed) and with the sensor open (sensor flag
activated).
If the voltages are incorrect, replace the ADF exit sensor. If this does
not fix the problem, replace the complete ADF assembly. See “ADF
complete assembly removal” on page 4-15.
Note: Whenever the complete ADF assembly is replaced, it is
necessary to perform scanner registration. See “Scanner
registration” on page 4-4.
FRU Action
Interval sensor—interrupter type
(normally closed)
Connector CN9 (motor driver card)
CN9—Pin 1 0 V dc
CN9—Pin 2 +5 V dc
CN9—Pin 3 +5 V dc
Note: All voltages are approximate values.
ADF exit sensor—interrupter type (normally closed)
Connector CN9 (motor driver card)
Pin number Sensor closed Sensor open
CN9—Pin 1 0 V dc 0 V dc
CN9—Pin 2 +1.16 V dc +1.16 V dc
CN9—Pin 3 +5.0 V dc +0.15 V dc
Note: All voltages are approximate values.
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