Brother MFC-J6510DW Service Manual page 264

The Brother Maintenance USB Printer Properties window appears as shown below.
4) Click the Ports tab.
In this example, the port number assigned to the Brother Maintenance USB Printer is
USB001.
(9) In the Head Info. box on the BrUsbSn screen
(e.g., ALR7795500000) which is printed on the bar code label attached to the lower cover.
Click the OK key.
(10) To check that the entered head property code is correct, use Function code 68 (in
Section 5.1.4.22); that is, press the 6 and 8 keys in this order and then press the 2, 5, 8, and
0 keys in this order.
The LCD shows the current head property code (13-digit code) stored in the EEPROM on
the main PCB.
(11) Check that the character string entered in step (9) appears.
If it is OK, press the Stop/Exit key.
If something other than that appears, check the connection between the PC and machine
and go back to step (6).
(page 4-2), type the 13-digit property code
4-4
Chapter 5,
Confidential