Brother HL-4200CN Service Manual page 6

5.4 Front ASSY In .................................................................................................................... III-29
5.5 Chute ASSY Out ................................................................................................................ III-30
5.6 Chute ASSY Exit................................................................................................................ III-32
5.7 Transfer Roll Cartridge ASSY & Fuser .............................................................................. III-33
5.8 Xerographics...................................................................................................................... III-35
5.9 Toner Cartridge ASSY ....................................................................................................... III-37
5.10 Frame & Drive.................................................................................................................. III-39
5.11 Electrical .......................................................................................................................... III-40
6. MODES..................................................................................................... III-42
6.1 Print Mode.......................................................................................................................... III-42
6.2 Operation Modes ............................................................................................................... III-42
7. CONTROL................................................................................................. III-43
7.1 Control of Paper Size......................................................................................................... III-43
7.2 Selective Control on Paper Pick-up Unit ........................................................................... III-43
7.3 Scanner Light Quantity Control ......................................................................................... III-43
7.4 Process Control ................................................................................................................. III-44
7.5 Color Registration Control ................................................................................................. III-47
7.6 Transfer Roll Cartridge Unit ASSY Control........................................................................ III-48
7.7 Toner Control ..................................................................................................................... III-49
7.8 Fuser Control ..................................................................................................................... III-50
CHAPTER IV ASSEMBLY / DISASSEMBLY............................... IV-1
1.
REPLACING PROCEDURE OF PERIODICAL REPLACEMENT PARTS
1.1 Replacing the Fuser ASSY .................................................................................................IV-1
1.2 Replacing the Transfer ASSY.............................................................................................IV-4
1.3 Replacing the Roll ASSY ....................................................................................................IV-6
1.4 Description of Procedures ..................................................................................................IV-6
2. DISASSEMBLY PROCEDURE ..................................................................
2.1 Precautions ..........................................................................................................................IV-7
2.2 Cover of the Printer.............................................................................................................IV-8
2.3 Front of the Printer ............................................................................................................IV-19
2.4 Top of the Printer ..............................................................................................................IV-45
2.5 Right / Left / PCBs of the Printer.......................................................................................IV-54
2.6 Paper Feed of the Printer .................................................................................................IV-66
CHAPTER V TROUBLESHOOTING ............................................... V-1
1. P
ROGRESSING WITH THE
1.1 Flow of Troubleshooting .......................................................................................................V-1
2. LEVEL 1 FIP ................................................................................................V-2
2.1 Level 1 FIP............................................................................................................................V-2
2.2 Flow of Level 1 FIP ...............................................................................................................V-2
3. LEVEL 2 TROUBLESHOOTING ..................................................................V-3
3.1 Level 2 FIP............................................................................................................................V-3
T
ROUBLESHOOTING
...................................................V-1
........... -1
IV
-6
IV