Actions Yes No
Step 6
Remove the ADF rear cover and inspect the ADF cover closed sensor for
dirt and debris.
Is there dirt and debris present?
Go to step 7. Go to step 8.
Step 7
Clean the dirt and debris from the sensor.
Does this fix the issue?
Issue resolved. Go to step 8.
Step 8
Inspect the connections on the ADF relay card in the ADF.
Are all the connections properly connected?
Go to step 9. Secure all the
connections.
Step 9
Check the ADF cable for continuity.
Is there continuity?
Go to step 10. Replace the ADF cable.
Step 10
Check for signals or voltages from JADF1 on the controller board. Pin 11
and 12 should measure +24VDC. Pin 5 should measure +14VDC.
Are there signals or voltages present?
Replace the ADF. See
“ADF assembly
removal” on page
231.
Replace the controller
board. See “Controller
board removal” on
page 239.
ADF streak service check
Actions Yes No
Do streaks appear on the middle of scans when using the ADF? Clean the ADF glass on
the flatbed using a lint-
free cloth. Also, clean
the separator roll and
pad with a damp cloth.
No issue to fix.
ADF paper jam service check
Note: This service check should be used if the paper feeds and jams in the ADF. If the paper is not feeding into the
ADF see “ADF feed errors service check” on page 141.
7527
Diagnostic information
139
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