840.xx Service Check
Step Questions / actions Yes No
1
POR the machine into configuration
mode. Go to the disable scanner menu
item. See “Disable Scanner” in “System
Maintenance”. Touch “Enable ADF/FB -
Enabled" and press "Submit" to save the
change. POR the machine to operating
mode. Try running a copy from the ADF
and flatbed.
Did the 840.xx error recur?
Go to step 2.
Stop. Problem
resolved.
2
Re-enter Configuration mode, scroll to
and select the Disable Scanner menu
item.
Does the screen display "ADF Disabled"
or "Auto Disabled"?
Go to step 3. Go to step 8.
3
Check the ADF cable connections on the
ADF relay card and connector J17 on the
controller board. Also inspect the cable
connections on J28, J12, 13 and J30 on
the controller board.
Are the connections properly connected?
Go to step 5. Go to step 4.
4
Properly connect the connections on the
ADF relay card and controller board.
POR the machine into configuration
mode. Go to the disable scanner menu
item. See “Disable Scanner” in “System
Maintenance”. Touch “Enable ADF/FB -
Enabled" and press "Submit" to save the
change. POR the machine to operating
mode. Try running a copy from the ADF
and flatbed.
Did the 840.xx error recur?
Go to step 5. Stop. Problem solved.
5
Check the continuity on the ADF cable.
Is there continuity?
Go to step 7 Go to step 6.
Service Checks
265
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