Brother MFC-9420CN - Manual (Page 69)

Network Scanning
4 - 3
4
3
Click the Scan To Button tab in the dialog box and enter
your PC name in the Display Name field. The machine's
LCD displays the name you enter. The default setting is
your PC name. You can enter any name that you like.
4
You can avoid receiving unwanted documents by setting
a 4-digit Pin number. Enter your Pin number in the Pin
number and Retype Pin number field. To send data to
a PC protected by a Pin number, the LCD prompts to
enter the Pin number before the document can be
scanned and sent to the machine. (See Using the Scan
key on page 4-4 to 4-7.)