Details Of Firmware Switches - Brother MFC640CW Service Manual

DCP340CW
(1) Enter 1 and 0 by using the
(*To enter a numerical code on models having no numerical keypad, press the
display the numerical code to be entered and then press the Set key. Repeat this operation for each
numerical code.)
The machine displays the "WSW00" on the LCD and becomes ready to accept a firmware
switch number.
(2) Enter the numbers at the ten's place and unit's place of the desired number from the firmware
switch numbers (01 through 51) by using the
The following appears on the LCD:
WSWXX = 0 0 0 0 0 0 0 0
(3) To move the cursor to the right (left) by one position, press the
( ) on the LCD and press the Set key. Repeat this operation to move the cursor to the
selector position to be modified.
(4) Enter 1 and 0 by using the
(5) Press the Set key. This operation saves the newly entered selector values onto the EEPROM
and readies the machine for accepting a firmware switch number.
(6) Repeat steps (2) through (5) until the modification for the desired firmware switches is
completed.
(7) Press the Stop/Exit key to return the machine to the initial stage of the maintenance mode.
NOTES: • To cancel this operation and return the machine to the initial stage of the maintenance
mode during the above procedure, press the Stop/Exit key.
• If there is a pause of more than one minute after a single-digit number is entered for
double-digit firmware switch numbers, the machine will automatically return to the
initial stage of the maintenance mode.

Details of Firmware Switches

The details of the firmware switches are described in
selectors of the firmware switches are shaded.
and Set keys.*
Selector 1 Selector 8
↓ ↓
and Set keys.*
8 - 1 2
and Set keys.*
key several times to display
Appendix 4 in which the user-accessible
key several times to
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