Adf Paper Feed Service Check - Lexmark X500n Service Manual

7100-XXX

ADF paper feed service check

Step
1 If the ADF is multi-feeding, check for dirt on
the ADF separator pad and ADF separator
rollers. Are they dirty?
2 If the paper is skewing when it is fed into the
ADF, check the paper guide width. Is it set
correctly?
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?
4 Is paper failing to feed into the ADF?
5 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 sensor actuator. Is the paper
damaged?
6 Is there dirt in the sensors, or is the paper
present actuator stuck?
7 Are the sensor actuators on the ADF
mechanism cover damaged?
8 Is the ADF connector properly connected to
J-ADF1 on the system board?
9 inspect the connections on the ADF relay
card in the ADF. Are all the connections
properly connected?
10 Check the ADF cable for continuity. Is there
continuity?
11 Check for signals or voltages from J-ADF.
The voltage will only be present on pin 1
when a copy job is run. Pin one on
connector J-ADF1 should measure + 5v. Are
there signals or voltages present?
2-42
Service Manual
Questions / actions Yes
Clean them with a lint free
cloth and isopropyl alcohol.
Go to step 3.
Properly close the top
cover.
Go to step 5.
Bad media.
Clean the sensors, or
remove debis from the
actuators.
Replace the ADF
mechanism cover.
Go to step 9.
Go to step 10.
Go to step 11.
Replace the ADF unit. See
"ADF unit removal" on
page 4-53.
No
Replace the separator pad
and ADF pick roll.
Set the paper guides so
they contact the edges of
the paper.
If the paper is jamming in
the ADF, go to step 6
There is no issue.
Go to step 6.
Go to step 7.
Go to step 8.
Properly connect the cable
to the system board.
Secure all the connections.
Replace the ADF cable.
Replace the system board.
See "System board
removal" on page 4-36.