Hello Steve !
The only way scanning Legal documents on this HP LJ 3030 willbe using the ADF ( Automatic Document Feeder) since the size of the flatbed its only for letter.
So, after placing the document on the automatic document feeder theres a few setting you will need to change on the printer.
Number 1 : Go to Main Menu on the printer and look for System Setup, under system set up look for Paper setup,hit ok and now look for "Def. Paper Size" and set it to "Legal"
Number 2 : you should have a button on the printer control panel (Physical printer) that says " Reduce / Enlarge" , hit it and make sure the one selected is "original=100%"
Now just hit "Start Copy" and it print LEGAL ! it worked for me
Hope this help !
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