Lexmark X734de Service Manual page 547

Slide the flatbed scanner forward, and lift it up to remove it.
6.
Warning: Whenever you replace the ADF (entire), the flatbed scanner, or the MDC card, perform the
Manual Registration"
To enter Config Menu:
Turn off the multifunction printer.
1.
Press and hold 2 and 6.
2.
Turn on the MFP.
3.
Release the buttons when the progress bar displays.
4.
in Configuration menu.
7526
"Scanner
Repair information
4-281
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