Troubleshooting; Troubleshooting For Error Display; The Double Feeding Sensor Detected Multiple Documents; The Document Scanning Position Sensor Detected That The Document Length Was 40 Cm Or More. (Document Jam) - Brother ADS-2000 Service Manual

4. TROUBLESHOOTING

4.1

Troubleshooting for Error Display

4.1.1 The double feeding sensor detected multiple documents.

<User Check>
- Check that the paper used for the document is within the standard.
Step
Incorrect parameter setting for
1
the double feeding sensor
2 Double feeding sensor failure
3 Main PCB failure
4.1.2 The document scanning position sensor detected that the document length
was 40 cm or more. (Document jam)
<User Check>
- Check that the document guide is adjusted to suit the document size.
Step
Document scanning position
1 actuator caught in a section of
the machine
2 Main PCB failure
4.1.3 The document scanning position sensor has not detected the top of the
document even after the document has been fed for the specified distance.
(Document jam)
<User Check>
- Check that the document size is within the standard.
- Check that the document is not wrinkled.
- Check that the document is not torn.
- Check that the front cover is closed correctly.
Step
Document scanning position
1 actuator caught in a section of
the machine
Attachment failure of the gears
2
in the feeding system
3 Separation pad failure
Abrasion of the pick-up roller
4
ASSY
Misalignment or bending of the
5
pick-up roller support film
6 Front cover sensor failure
7 One way clutch failure
8 Main motor failure
9 Main PCB failure
Cause
Set the parameter for the double feeding
sensor correctly.
Replace the double feeding sensor.
Replace the main PCB ASSY.
Cause
Reattach the document scanning position
actuator.
Replace the main PCB ASSY.
Cause
Reattach the document scanning position
actuator.
Reattach the gears in the feeding system.
Replace the separation pad ASSY.
Replace the pick-up roller ASSY.
Replace the pick-up roller cover ASSY.
Replace the front cover sensor.
Replace the one way clutch.
Replace the main motor.
Replace the main PCB ASSY.
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Remedy
Remedy
Remedy
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