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8-5 Confidential
8.4 DETAILED DESCRIPTION OF
MAINTENANCE-MODE FUNCTIONS
8.4.1 EEPROM Parameter Initialization (Function code 01/91)
Function
The machine initializes the parameters, user switches, and firmware switches registered in
the EEPROM, to the initial values. Entering the function code 01 initializes all of
the EEPROM areas, but entering 91 does not initialize some areas, as listed below.
Function code
Data item
01 91
Maintenance-mode functions
User switches
Firmware switches
These will be
initialized.
Remote activation code
These will not be
initialized.
Station ID data
Outside line number
Telephone function registration
One-touch dialing
Speed dialing
Group dialing
All of these will be
initialized.
These will not be
initialized.
NOTE: If you replace the main PCB with the one used for any other machine, carry out this
procedure and then customize the EEPROM (maintenance-mode function code 74 in
Section 8.4.14).
Operating Procedure
(1) MFC7420/7820N
Press the 0 and 1 keys (or the 9 and 1 keys according to your need) in this order in the
initial stage of the maintenance mode.
DCP7010/7020/7025
Press the
key or key several times to display the “MAINTENANCE 01” or
“MAINTENANCE 91” code on the LCD. Then press the Set key .
The "PARAMETER INIT" will appear on the LCD.
(2) Upon completion of parameter initialization, the machine returns to the initial stage of
the maintenance mode.
(3) Be sure to turn the machine power off. If you press the 9 key twice to exit from the
maintenance mode without turning the power off, then the machine will not fully
initialize the EEPROM.