Step Questions / actions Yes No
2
f the paper is skewing when it is fed into
the ADF, check the paper guide width. Is
it set correctly?
Go to step 3.
Set the paper guides
so they contact the
edges of the paper.
3
If paper is skewing when fed or jamming
check to see if the top cover is open or
ajar. Is the ADF top cover open or ajar?
Properly close the top
cover.
If the paper is
jamming in the ADF,
go to step 6
4 Is paper failing to feed into the ADF? Go to step 5. There is no issue.
5
Perform the ADF paper present, scan 1st
and scan 2nd sensor tests. See “Scanner
Tests” in “System Maintenance”. Are the
sensors working properly?
Go to step 6 Go to step 9.
6
Check the leading edge of the paper to
ensure the paper is not curled or bent in a
way that would keep it from contacting
the paper present sensor actuator. Is the
paper damaged?
Bad media. Go to step 7.
7
Is there dirt in the sensors, or is the paper
present actuator stuck?
Clean the sensors, or
remove debris from
the actuators.
Go to step 8.
8
Are the sensor actuators on the ADF
mechanism cover damaged?
Replace the ADF. Go to step 9.
9
Is the ADF connector properly connected
to J17 on the system board?
Go to step 10.
Properly connect the
cable to the system
board.
10
Inspect the connections on the ADF relay
card in the ADF. Are all the connections
properly connected?
Go to step 11.
Secure all the
connections.
11
Check the ADF cable for continuity. Is
there continuity?
Go to step 12.
Replace the ADF
cable.
12
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 unit
(
p.111 "ADF Unit
Removal").
Replace the controller
board ( p.44
"Controller Board
Removal").
Service Checks
271
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