Features: 1) Paper width: 240mm 2) Optional parameters: a) 44 keys, 88 characters with blac Features: 1) Paper width: 240mm2) ... Optional parameters: a) 44 keys, 88 characters with black ribbon (Rover 1000)b ... , 88 characters, TAB key with double color ribbon (Rover 3000)d) 44 keys, 88 characters, TAB key, automatic key with double color ...