Updating Of Head Property Information - Brother MFC5100C Service Manual

5.3.14 Updating of Head Property Information

Function
To keep the print quality, the controller optimizes the head drive strength, ink jet-out timing, and
other drive conditions according to the electromechanical properties unique to individual print
heads and ambient temperature. The head property information is stored in the EEPROM of the
main PCB.
If you replace the print head unit and/or main PCB of the machine, then you need to update the
head property according to the procedure given here.
TIP: You may update the head property information from a PC connected to the facsimile
machine. For the procedure, refer to CHAPTER 2, Section 2.3.
Operating Procedure
(1) Press the 6 and 8 keys in this order in the initial stage of the maintenance mode.
(2) Press the 2, 5, 8, 0 keys in this order.
The facsimile machine shows the current head property information (13-digit code, e.g.,
45352DABB485F) stored in the EEPROM on the LCD and becomes ready to accept entry.
(3) Check the head property code printed on the bar code label attached to the print head unit. Out
of the 13-digit property code (enclosed with asterisks, e.g., *66667F657031H*), type upper
12 digits (e.g., 66667F657031).
NOTE: To enter letters "A" through "F," press the 1 through 6 keys while holding down the #
key, respectively.
(4) Press the Set key.
The machine beeps, shows the "INPUT ACCEPTED" on the LCD, and writes the entered
property code into the EEPROM. Then the machine returns to the initial stage of the
maintenance mode.
NOTE: If the entered data contains any checksum error, the machine beeps, shows the
"INPUT ERROR," and then returns to the ready-to-enter state. Go back to step (3).
5 -2 1