Adf Cover Open Service Check; Adf Streak Service Check - Lexmark X543 Service Manual

7525-xxx

ADF cover open service check

Step Questions / actions
1 Is the ADF cover properly closed
2 Close the ADF cover.
Does the problem go away?
3 Perform the ADF cover open sensor test.
Go to
"Scanner Tests" on page
Does the sensor work properly.
4 On the bottom of the ADF cover, inspect the
ADF cover closed sensor actuator. Does it
move freely?
5 Fix the actuator so it moves freely.
Does this fix the problem?
6 Remove the ADF rear cover and inspect the
ADF cover closed sensor for dirt and debris.
Is there dirt and debris present?
7 Clean the dirt and debris from the sensor.
Does this fix the issue?
8 Inspect the connections on the ADF relay
card in the ADF. Are all the connections
properly connected?
9 Check the ADF cable for continuity. Is there
continuity?
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?

ADF streak service check

Step Questions / actions
1 Do streaks appear on the middle of
scans when using the ADF?
Service Manual
2-70
Yes
Go to step 3.
Issue resolved
Go to step 4
3-25.
Go to step 6.
Issue resolved.
Go to step 7.
Issue resolved.
Go to step 9.
Go to step 10.
Replace the ADF.Go to
"Duplex ADF removal" on
4-88, or
page "Simplex
ADF removal" on
page 4-89
Yes
Clean the ADF glass on the
flatbed using a lint-free cloth.
Also, clean the separator roll
and pad with a damp cloth.
No
Go to step 2.
Go to step 3.
Go to step 8.
Go to step 5.
Go to step 6.
Go to step 8.
Go to step 8.
Secure all the connections.
Replace the ADF cable.Go
to
"ADF cable removal"
on page 4-90
Replace the controller
board. Go to
"Controller
board removal" on
page 4-18.
No
No issue to fix.
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