M126/M127/M128 6-86 SM
6.5.19 840.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.
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