Brother FAX-2840 Service Manual page 212

<Procedures>
(1) Double-click the "Brusbsn.exe" file to start it.
(2) Click "Laser 10Model".
(3) In the [Port] field, select the port number assigned to the Brother Maintenance USB
Printer.
(4) Enter the number (2nd digit from the left) on the laser serial number label attached to the
location shown in the illustration below in the [S xxxxxxVXXYY] field.
Laser plate
(5) Enter the number (last five digits) on the laser serial number label in the [Scanner Video
Clk] field, and click the [OK] button.
(6) The adjusted value of the laser unit is written to the machine.
Laser serial number label
4-7
Laser unit
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