Adf Streak Service Check; Adf Paper Jam Service Check - Lexmark CX310n Service Manual

Actions
Step 6
Remove the ADF rear cover and inspect the ADF cover closed sensor for
dirt and debris.
Is there dirt and debris present?
Step 7
Clean the dirt and debris from the sensor.
Does this fix the issue?
Step 8
Inspect the connections on the ADF relay card in the ADF.
Are all the connections properly connected?
Step 9
Check the ADF cable for continuity.
Is there continuity?
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?

ADF streak service check

Actions
Do streaks appear on the middle of scans when using the ADF?

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
Yes
Go to step 7.
Issue resolved.
Go to step 9.
Go to step 10.
Replace the ADF. See
"ADF assembly
removal" on page
231.
Yes
Clean the ADF glass on
the flatbed using a lint-
free cloth. Also, clean
the separator roll and
pad with a damp cloth.
141.
Diagnostic information
139
7527
No
Go to step 8.
Go to step 8.
Secure all the
connections.
Replace the ADF cable.
Replace the controller
board. See "Controller
board removal" on
page 239.
No
No issue to fix.