Document Is Not Picked Up And Fed - Brother ADS-2000 Service Manual

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4.3.4 Document is not picked up and fed

<User Check>
- Check that paper used for the document is not thinner than the standard. If it is too thin,
use a carrier sheet.
- Check that the front cover is closed correctly.
- Check that the separation pad cover is closed correctly.
Step
Document detection actuator
1
coming off
Connection failure of the document
2
detection sensor harness
Connection failure of the top cover
3
sensor harness
Connection failure of the front cover
4
sensor harness
Connection failure of the main
5
motor harness
Attachment failure of the gears in
6
the feeding system
7
Top cover sensor failure
8
Front cover sensor failure
Document detection sensor failure Replace the document detection sensor
9
10
One way clutch failure
Deformation of the front plate
11
spring
12
Main motor failure
13
Main PCB failure
Cause
Reattach the document detection actuator.
Reconnect the document detection sensor
harness.
Reconnect the top cover sensor harness.
Reconnect the front cover sensor harness.
Reconnect the main motor harness.
Reattach the gears in the feeding system.
Replace the top cover sensor.
Replace the front cover sensor.
PCB.
Replace the one way clutch.
Replace the separation pad cover.
Replace the main motor.
Replace the main PCB ASSY.
2-22
Remedy
Confidential

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