Brother HL-2700CN Service Manual page 374

(6) On the Model menu, click Printer 2.
In Port, make sure that the LPT1: is selected.
In the Serial No = box, type the 9-digit serial number (e.g. G01012345) printed on
the nameplate labeled to the back of the machine as an ID code. Then press the
OK button.
The setup utility will transmit the ID code data from your PC to the machine and
then it will terminate.
(7) Set the paper size as "A4" or "LETTER" from the panel menu.
( MENU > PRINT MENU > PAPER > A4/LETTER )
(8) Print out the Print Settings by pushing the "Set" button three times to check the
version of the firmware.
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