If you inserted the original pages in the document feeder tray, all pages are scanned. A beep will sound to indicate that scanning and transmission have ended.
If you placed the original on the document glass, scan each page one at a time. When scanning finishes, place the next original and tap the [Start] key. Repeat until all pages have been scanned and then tap the [Read-End] key. A beep will sound to indicate that transmission has ended.