2-70 Service Manual
7525-xxx
ADF cover open service check
ADF streak service check
Step Questions / actions Yes No
1 Is the ADF cover properly closed Go to step 3. Go to step 2.
2 Close the ADF cover.
Does the problem go away?
Issue resolved Go to step 3.
3 Perform the ADF cover open sensor test.
Go to “Scanner Tests” on page 3-25.
Does the sensor work properly.
Go to step 4 Go to step 8.
4 On the bottom of the ADF cover, inspect the
ADF cover closed sensor actuator. Does it
move freely?
Go to step 6. Go to step 5.
5 Fix the actuator so it moves freely.
Does this fix the problem?
Issue resolved. Go to step 6.
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.
7 Clean the dirt and debris from the sensor.
Does this fix the issue?
Issue resolved. Go to step 8.
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.
9 Check the ADF cable for continuity. Is there
continuity?
Go to step 10. Replace the ADF cable.Go
to “ADF cable removal”
on page 4-90
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.Go to
“Duplex ADF removal” on
page 4-88, or “Simplex
ADF removal” on
page 4-89
Replace the controller
board. Go to “Controller
board removal” on
page 4-18.
Step Questions / actions Yes No
1 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.
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