Chapter 7 Maintenance Mode; Entry Into The Maintenance Mode - Brother MFC8420 Service Manual

CHAPTER 7
1.

ENTRY INTO THE MAINTENANCE MODE

To make the machine enter the maintenance mode, press the Menu button,
*, 2, 8, 6, and 4 keys in this order.
Within 2 seconds
The machine beeps for approx. one second and displays "
LCD, indicating that it is placed in the initial stage of the maintenance mode, a mode in which
the machine is ready to accept entry from the keys.
To select one of the maintenance-mode functions listed in Section 2, enter the corresponding
2-digit function code with the numerical keys on the control panel. (The details of each
maintenance-mode function are described in Section 3.)
NOTE:
• Pressing the 9 key twice in the initial stage of the maintenance mode makes the machine
exit from the maintenance mode, restoring it to the standby state.
• Pressing the Stop button after entering only one digit restores the machine to the initial
stage of the maintenance mode.
• If an invalid function code is entered, the machine resumes the initial stage of the
maintenance mode.
MAINTENANCE MODE
MFC-8420/8820D/8820DN, DCP-8020/8025D/8025DN
7-1
SERVICE MANUAL
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