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4.7 Scanner related trouble
Mechanical Errors
Symptom Possible Cause Countermeasure
While
feeding a
document
ADF does not feed the
document.
The pickup roller is dirty or worn
out.
Clean the roller.
Replace the roller.
The power of the separation
roller is getting decrease. The
separation pad pressure does
not match the paper quality.
Adjust the separation pressure.
Clean the roller.
The motor is not rotating. Replace the motor.
Replace the ADF board.
While
scanning
document
The feeder stops the feeding
job while the document is
taken into the feeder.
The malfunction of the sensor. Replace the sensor.
The motor power is not working
properly.
Replace the motor.
Replace the ADF board.
The roller is dirty. Clean the roller.
The roller is worn out. Replace the roller.
The document is stuck and
gets damaged while taken
into the feeder.
Foreign objects entered the feed
area.
Remove the objects.
The paper quality is not
acceptable.
The paper shape is not
acceptable.
Recommend the customer to use
the document glass.
Sensor Malfunctions
Symptom Possible Cause Countermeasure
While
feeding a
document
No beep sound when you
place the document.
(The beep sound volume
setting could be OFF.)
DS1 sensor defect 0 Press <Mode>, <*>, <2>, <2> to display the sensor
input test mode.
1 Confirm the LCD indication changes by moving the
DS1 sensor.
OFF: No document / ON: Document
2 Check the sensor harness is firmly connected.
3 If the LCD indication does not change, replace the
DS1 sensor.
4 Replace the sensor harness.
5 Replace ADF board.
6 Replace the harness between ADF board and main
control board.
7 Replace the main control board.
APS sensor defect 0 Press <Mode>, <*>, <2>, <2> to display the sensor
input test mode.
1 Confirm that the LCD indication changes by opening
and closing the platen cover.
OFF: Cover Open / ON: Document
2 Check the sensor harness is firmly connected.
3 If the LCD indication does not change, replace the
APS sensor.
4 Replace the sensor harness.
5 Replace ADF board.
6 Replace the harness between ADF board and main
control board.
7 Replace the main control board.
The machine feeds the
document through the ADF
without scanning.
DS1 or APS sensor
defect
Check “DS1 sensor defect” and “APS sensor defect”.
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