Brother HL-3450CN Service Manual page 7

CHAPTER 8 TROUBLESHOOTING ............................................... 8-3
1. OUTLINE OF TROUBLESHOOTING .............................................................8-4
2. OPERATOR CALL..........................................................................................8-5
2.1 Video Controller Mode .........................................................................................................8-5
2.2 Engine Controller Mode .......................................................................................................8-8
3. PAPER TRANSPORT ERROR.....................................................................8-10
3.1 Feed Jam ...........................................................................................................................8-10
3.2 Inner Jam ...........................................................................................................................8-11
3.3 Outer Jam ..........................................................................................................................8-13
3.4 Others ................................................................................................................................8-13
4. SERVICE CALL ............................................................................................8-14
4.1 Video Controller Mode .......................................................................................................8-15
4.2 Engine Controller Mode .....................................................................................................8-18
5. IMAGE FAILURE ..........................................................................................8-47
APPENDIX 1 ................................................................................... A-1
APPENDIX 2 ................................................................................... A-6
APPENDIX 3 ................................................................................... A-7
APPENDIX 4 ................................................................................... A-8
APPENDIX 5 ................................................................................. A-11
APPENDIX 6 ................................................................................. A-14
APPENDIX 7 ................................................................................. A-21
APPENDIX 8 ................................................................................. A-36
APPENDIX 9 ................................................................................. A-38
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HL-34500CN SERVICE MANUAL