Brother MFC 685CW - Color Inkjet - All-in-One, Service Manual

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9.1.4.25 Assurance Mode Switch Setting (Function code 88)
Function
The machine incorporates four assurance mode switches (AMS01 through AMS04) that are
firmware switches just like the ones described in
Section 9.1.4.5.
When the machine does not function normally because the usage environments or operating
conditions are not usual, the assurance mode switches provide workarounds to make the machine
usable by changing the machine settings to untypical ones.
The user is allowed to access the assurance mode switches under the guidance of service personnel
(e.g., by telephone).
The details about AMS01 through AMS04 are described on the following pages.
Operating Procedure
(1) Press the 8 key twice in the initial stage of the maintenance mode.
The machine displays "AMS00" on the LCD and becomes ready to accept an assurance mode
switch number.
(2) Enter the desired number from the assurance mode switch numbers (01 through 04).
The following appears on the LCD:
Selector 1 Selector 8
↓ ↓
AMSXX = 0 0 0 0 0 0 0 0
(3) Move the cursor to the selector position to be modified, using the right and left arrow keys.
(4) Enter the desired number using the 0 and 1 keys.
(5) Press the OK key. This operation saves the newly entered selector values onto the EEPROM
and readies the machine for accepting an assurance mode switch number.
(6) Repeat steps (2) through (5) until the modification for the desired assurance mode 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 assurance mode switch numbers, the machine will automatically return to
the initial stage of the maintenance mode.
• Initializing the EEPROM with Function code 01 or 91 initializes the AMS switch
settings.