By default it would be user = admin, password = 1111
Due to the printers age (finished its run in 2008), you will almost certainly need to setup a simple ftp server on your PC because SMB surely won't work on Windows 7 or higher, or Mac 10.7 or higher. So you may be stuck scanning to a mailbox on the device itself if you don't have an FTP server to use and can't set one up..