3.   Plug the other end of the cord into a grounded AC wall outlet or an equivalent fixture. 4.   To power on the printer, press the | on the power switch. 5.   After a moment, the printer displays messages to indicate it is initializing. When the printer is ready, it displays the message READY. Selecting a Language   Important!
English is the default language for messages and menus. If you use
English, skip this procedure. To display messages and menus in a language other than English, do the
following:
1.   Press the Menu key until you see LANGUAGE MENU in the message display area. Then press the Item key until you see LANG=ENGLISH. 16    Infoprint 21: User’s Guide