Turns the Reader on/off, and sets it to sleep mode. See Details.

When reading a book or periodical: Press either button to turn the page back or forward, respectively. Press and hold either button to turn pages continuously.

When using the Web browser: Press either button to scroll the page up or down, respectively.

Displays the [Home] screen.

Returns to the previous screen, or returns to the content list from a book. Also closes the on-screen keyboard or a dialog box/navigation bar/tool bar.

Displays the available option items.