4.8.4
ADF service check
Action
Step 1
Check all cables connecting the ADF and flatbed to the controller
board.
Are they properly connected?
Step 2
Re-connect the cables to the controller board.
Did this fix the problem?
Step 3
1.
Enter diagnostics mode and navigate to:
SCANNER TESTS >Sensor Test
Perform the scanner sensor tests.
2.
Navigate to:
SCANNER TESTS >Motor Tests
Perform the scanner sensor and motor tests.
Did any test fail?
Step 4
Did the Flatbed Home Sensor test or Flatbed motor test fail?
Step 5
Replace the flatbed. See
Flatbed assembly
Did this solve the problem?
Step 6
Did the ADF pick motor or feed motor tests fail?
Step 7
Replace the ADF. See
ADF unit
Did this fix the problem?
Step 8
Replace the controller board. See
Did this fix the problem?
bizhub 4020/3320 Service Manual
removal.
removal.
Controller board
removal.
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Yes
No
Go to step 3.
Go to step 2.
The problem is
Go to step 3.
solved.
Go to step 4.
Go to step 8.
Go step 5.
Go to step 6.
The problem is
Go to step 6.
solved.
Go to step 7.
Go to step 8.
The problem is
Go to step 8.
solved.
The problem is
Contact the next
solved.
level of support.