Brother HL-4200CN Service Manual page 8

1.1 How to Use the BSD............................................................................................................VI-1
1.2 Explanations of Symbols .....................................................................................................VI-1
1.3 Signal Name/Other description............................................................................................VI-4
1.4 DC Voltage...........................................................................................................................VI-4
1.5 Input/Output Test .................................................................................................................VI-4
2. BSD (BLOCK SCHEMATIC DIAGRAM)
2.1 Standby Power.....................................................................................................................VI-5
2.2 Mode Selection ....................................................................................................................VI-7
2.3 Machine Run Control ...........................................................................................................VI-8
2.4 Start Print Power................................................................................................................VI-11
2.5 OPTICS (Scanner).............................................................................................................VI-12
2.6 Paper Supplying ................................................................................................................VI-14
2.7 Paper Transportation .........................................................................................................VI-19
2.8 XEROGRAPHICS..............................................................................................................VI-28
2.9 Fusing and Transportation.................................................................................................VI-36
CHAPTER VII PLUG/JACK (P/J) CONNECTOR LOCATIONS.... VII-1
1. LIST OF P/J ...............................................................................................VII-1
2. P/J LAYOUT DIAGRAM .............................................................................VII-4
APPENDIX 1 ............................................................................. APP-1
1.1 When PCB is replaced.........................................................................................................A-1
1.2 Controller Firmware upgrade...............................................................................................A-2
APPENDIX 2 CONSUMABLES REPLACEMENT .................... APP-2
1. Coverage ................................................................................................................................A-7
2. Job ..........................................................................................................................................A-8
APPENDIX 3 HOW TO USE THE CLEANING KIT TO REMOVE
25MM PITCH COLOR DOTS ..................................................... APP-3
APPENDIX 4 MEASURE OF TONER CARTRIDGE WEIGHT . APP-4
APPENDIX 5 PERIODICAL REPLACEMENT PARTS ............ APP-5