If You Replace The Main Pcb; 1 ] Load The Full Maintenance Program Temporarily (Mfc3240C/Fax1840C U.s.a./Canadian Models) Load Update Programs/Data (Other Models); 2 ] Initialize The Eeprom On The Main Pcb (Function Code 01); 3 ] Customize The Eeprom On The Main Pcb (Function Code 74) - Brother MFC-3340CN Service Manual

6.3 IF YOU REPLACE THE MAIN PCB

NOTE: If you replace the main PCB, also replace the ink absorber box. Using the machine without replacing
the ink absorber box for a long period may cause an overflow of drained ink from the ink absorber box,
thereby staining the machine.
[ 1 ] Load the full maintenance program temporarily (MFC3240C/FAX1840C U.S.A./Canadian
models)
Load update programs/data (Other models)
MFC3240C/FAX1840C U.S.A./Canadian models
Load the full maintenance program temporarily. Refer to
Other models
n If the main PCB is replaced with a new one, write the update programs/data onto the flash ROM.
Refer to Appendix 2, page App. 2-5.
n If the main PCB is replaced with the one used for other machines, follow the steps below.
(1) Update the firmware stored in the flash ROM. Refer to
(2) Reset the purge counter to zero with the following procedure.
1) Press the 8 and 0 keys in this order in the initial stage of the maintenance mode.
NOTE: Make a note of the log information displayed on the LCD on the machine's repair
log sheet as well as leaving a comment that the log information stored in the EEPROM is
different from the actual record.
2) Press the Black Start (Mono Start) key several times until the purge count appears on the
LCD.
3) Press the 2, 7, 8, and 3 keys in this order to reset the purge count to zero.
4) Press the Stop/Exit key to return to the initial stage of the maintenance mode.
5) Press the 9 key twice to exit the maintenance mode.
[ 2 ] Initialize the EEPROM on the main PCB (Function code 01)
Refer to Chapter 8, Section 8.5.1.

[ 3 ] Customize the EEPROM on the main PCB (Function code 74)

Refer to Chapter 8, Section 8.5.17.

[ 4 ] Check the control panel PCB for normal operation (Function code 13)

Refer to Chapter 8, Section 8.5.6.

[ 5 ] Make a sensor operational check (Function code 32)

Refer to Chapter 8, Section 8.5.7.

[ 6 ] Acquire white level data and set the CIS scanner area (Function code 55)

Refer to Chapter 8, Section 8.5.10.
Section 6.2, [ 1 ].
Appendix 2, page App. 2-6.
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