Step Questions / actions Yes No
7
Remove the ADF rear cover, and 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 (
p.123 "ADF
Cable Removal").
10
Check for signals or voltages from J17 on
the controller board. Pin 11 and 12
should measure +24VDC. Pin 14 should
measure +5VDC. Are there signals or
voltages present?
Replace the ADF (
p.111 "ADF Unit
Removal").
Replace the controller
board ( p.44
"Controller Board
Removal").
ADF Streak Service Check
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.
No issue to fix.
ADF Paper Jam Service Check
• 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” in “Troubleshooting”.
Step Questions / actions Yes No
1
If the ADF is multi-feeding, check for dirt
on the ADF separator pad and ADF
separator rollers. Are they dirty?
Clean them with a lint
free cloth and
isopropyl alcohol.
Replace the separator
pad and ADF pick
roll.
6. Troubleshooting
270
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