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MFC-8440/8840D/8840DN, DCP-8040/8045D/8045DN
SERVICE MANUAL
7-3
< IMPORTANT>
Basically, the maintenance-mode functions listed on the previous page should be accessed by
service personnel only. However, you may allow end users to access some of these under the
guidance of service personnel (e.g., by telephone).
The user-accessible functions (codes 06, 10, 11, 12, 54, 80, 82, 87 and 91) are shaded in the
table given on the previous page. Function code 10 accesses the firmware switches (WSW),
each of which has eight selectors. You should not allow end users to access all of those
selectors, but you may allow them to access user-accessible selectors which are shaded in the
firmware switch tables in
Appendix 3
.
The service personnel should instruct end users to follow the procedure given below.
(1) Press
the
Menu
and
Enlarge/Reduce
button in this order.
NOTE:
The Enlarge/Reduce button does not work when the machine is in the retry mode or the
timer function is set.
(2) Press
the
0
key.
(3) Enter the desired function code (06, 10, 11, 12, 54, 80, 82, 87, or 91) with the numerical
keys.
For function code 10, access the desired firmware switch according to the operating
procedure described in
Appendix 3
.
(4) To make the machine return to the standby state, press the
Stop
button.
MFC8440/MFC8840D/MFC8840DN
Fig.7-1
DCP8040/DCP8045D/DCP8045DN
Fig.7-2
Menu button
0 key
Stop button
Enlarge/Reduce button
Menu button
0 key
Stop button
Enlarge/Reduce button
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 ...