MFC-8440/8840D/8840DN, DCP-8040/8045D/8045DN
SERVICE MANUAL
7-1
CHAPTER 7 MAINTENANCE MODE
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 "
" on the
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.
Summary of Contents for DCP 8040 - B/W Laser - All-in-One
Page 272: ...CHAPTER 7 MAINTENANCE MODE 7 6 Fig 7 3 l m a b c d e f g h i j k ...
Page 343: ...APPENDIX 4 CIRCUIT DIAGRAMS A 50 Appendix 4 1 Main PCB Circuit Diagram 1 7 ...
Page 345: ...APPENDIX 4 CIRCUIT DIAGRAMS A 52 Appendix 4 3 Main PCB Circuit Diagram 3 7 ...
Page 347: ...APPENDIX 4 CIRCUIT DIAGRAMS A 54 Appendix 4 5 Main PCB Circuit Diagram 5 7 ...
Page 349: ...APPENDIX 4 CIRCUIT DIAGRAMS A 56 Appendix 4 7 Main PCB Circuit Diagram 7 7 ...
Page 351: ...APPENDIX 4 CIRCUIT DIAGRAMS A 58 Appendix 4 9 Engine PCB Circuit Diagram 1 2 ...
Page 353: ...APPENDIX 4 CIRCUIT DIAGRAMS A 60 Appendix 4 11 NCU PCB Circuit Diagram U S A ...
Page 355: ...APPENDIX 4 CIRCUIT DIAGRAMS A 62 Appendix 4 13 NCU PCB Circuit Diagram Asia ...
Page 357: ...APPENDIX 4 CIRCUIT DIAGRAMS A 64 Appendix 4 15 Control Panel PCB Circuit Diagram ...
Page 362: ...April 04 SM FAX027 1 8C5903 Printed in Japan ...
