Brother MFC8420 Service Manual page 268

CHAPTER 7 MAINTENANCE MODE
WSW No.
< Operating Procedure >
(1) Press the 1 and 0 keys in this order in the initial stage of the maintenance mode.
The machine displays the "WSW00" on the LCD and becomes ready to accept a
firmware switch number.
(2) Enter the desired number from the firmware switch numbers (01 through 50).
The following appears on the LCD:
(3) Use the
(4) Enter a value to be set (0 or 1) using the 0 and 1 keys.
(5) Press the Set button. 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 button to return the machine to the initial stage of the maintenance
mode.
NOTE:
• To cancel this operation and return the machine to the initial stage of the maintenance
mode during the above procedure, press the Stop button.
• 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
accessible selectors of the firmware switches are shaded.
WSW35 Function setting 13
WSW36 Function setting 14
WSW37 Function setting 15
WSW38 Function setting 16
WSW39 Function setting 17
WSW40 Function setting 18
WSW41 Function setting 19
WSW42 Function setting 20
WSW43 Function setting 21
WSW44 Speeding up scanning-1
WSW45 Speeding up scanning-2
WSW46 Monitor of PC ON/OFF state
WSW47 Function setting 22
WSW48 Function setting 23
WSW49 Function setting 24
WSW50 Not used.
Selector 1
WSWXX =
and keys to move the cursor to the selector position to be modified.
Selector 8
↓ ↓
0 0 0 0 0 0 0 0
7-10
Function
Appendix 3 in which the user-