Updating Of Head Property Data And Backup/Restoration Of Head Calibration Data (Maintenance Mode 68) - Brother MFC-J3520 Service Manual

1.3.25 Updating of Head Property Data and Backup/Restoration of Head Calibration
Data (Maintenance mode 68)
< Function >
Maintenance code 68 provides two types of procedures--one for updating the head
property data and the other for backing up the head calibration data and restoring it.
Updating the head property data
To keep the print quality, the machine optimizes the drive conditions of individual head/
carriage units according to the head property data.
The head property data is stored in the EEPROM on the main PCB and its property
code is printed on the head property labels attached to the machine and the head/
carriage unit.
If you replace the head/carriage unit, you need to enter its property code printed on the
head property label (pasted on the new spare part).
Backing up the head calibration data and restoring it
This procedure backs up the head calibration data into an external memory (memory
card or USB flash memory) and restores it to the machine.
< Operating Procedure >
Head Property Data Updating 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, and 0 keys in this order.
The current property data stored in the EEPROM appears on the LCD and the
machine is ready for entry.
(3) Check the head property label pasted on a new head/carriage unit and enter the
property code.
The code to be entered is 10 digits excluding the heading "ALR."
Tip: Opening the scanner cover when the machine is on maintenance mode 75
moves the head/carriage unit to the center of its travel. This makes it possible
to check the head property label through the opening. (refer to
"Move of the Head/Carriage Unit to the Center (Maintenance mode 75)"
chapter).
(4) After entry of 10-digit code, press the SET key.
The machine displays the "INPUT ACCEPTED" on the LCD, writes the entered
property code into the EEPROM, and then returns to the initial stage of the
maintenance mode.
Note: If the entered data contains any checksum error, the machine shows the
"Input Error" and becomes ready to accept entry. Go back to step (3).
Head property data
5-45
Section 1.3.28
in this
Confidential