Brother DCP6690CW Service Manual page 327

(3) On your PC, run the ID/head property utility (brusbsn.exe) in the folder created in
7.1.1. The following window appears.
(4) On the model menu, click BH9.
(5) In Port on the BrUsbSn screen, select the port number assigned to the Brother
Maintenance USB Printer. If the port number is unknown, follow the instructions given in
Section 7.2 [ 1 ], step
(6) In the Serial No box on the BrUsbSn screen, type the 9-digit serial number (e.g.,
D6F111101) printed on the nameplate labeled to the machine as an ID code.
(8).
Serial number label
7-33
(app01b_1)
Section
Confidential