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Step
7
Replace the ADF unit. See
removal" on page
removal" on page
into configuration mode. Go to the disable
scanner menu item. See
Scanner" on page
ADF/FB -Enabled and press
change. POR the MFP to operating mode.
Run a copy from the ADF.
Did the 840.xx error recur?
8
Inspect JFBM1, JHS1 and JCCD1 on the
controller board.
Are the connections properly connected?
9
Properly connect all the connections.
Did the 840.xx error recur?
10
Replace the flatbed unit. See
removal" on page
into configuration mode. Go to the disable
scanner menu item. See
Scanner" on page
ADF/FB -Enabled and press
change. POR the MFP to operating mode.
Run a copy from the flatbed.
Did the 840.xx error recur?
11
Replace the controller board. See
"Controller board removal" on page
Did this fix the problem?
2-64
Service Manual
Questions / actions
"Duplex ADF
4-83or
"Simplex ADF
4-84. POR the machine
"Disable
3-36. Select "Enable
to save the
"Flatbed
4-72. POR the machine
"Disable
3-36. Select "Enable
to save the
Yes
Go to step 8.
Go to step 10.
Stop Problem solved.
Go to step 11
Problem solved.
4-18.
No
Stop. Problem solved.
Go to step 9.
Go to step 10.
Stop. Problem solved.
Contact second-level
support.
Y112730-2
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