Brother MFC-7240 - Manual (Page 34)

Printing
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 Serial No. (5)
By clicking Auto Detect (6), the printer driver will query the machine and display its serial number. If it fails
to receive the information, the screen will display “---------------”.
 Auto Detect (6)
The Auto Detect function obtains the machine’s serial number by initiating communication between the
PC and the machine.
Note
The Auto Detect function is not available under the following machine conditions:
• The machine’s power switch is Off.
• The cable is not connected to the machine correctly.