You load the originals print side uo on the document feeder tray or print side down on the glass.
To send a single page fax you can either load the original on document feeder tray or on the glass; to send a multi-page fax you must use the document feeder tray.
The position of the paper is the same either you copy, fax or scan.
All this is clearly explained in the
user's manual, that you should read and you can download from
HP support pages for you printer:
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