
Main Unit Field Service
ii
I OutlinelII MaintenanceIII Adjustment/SettingIV TroublshootingV Appendix
3.1.1 Upgrade procedure (magicolor 5430 DL/5440 DL)....................................2-21
3.1.2 Upgrade procedure (magicolor 5450) ........................................................2-23
4. Other..................................................................................................................2-28
4.1 Disassembly/Adjustment-Prohibited Items......................................................2-28
4.2 Names of Feed Trays.......................................................................................2-28
4.3 Disassembly/Assembly list (Other parts).........................................................2-29
4.4 Disassembly/Assembly Procedure..................................................................2-30
4.4.1 Front Door, Upper Front Cover, and Right Front Cover..............................2-30
4.4.2 Left Cover...................................................................................................2-31
4.4.3 Rear Cover................................................................................................. 2-31
4.4.4 Exit Tray......................................................................................................2-32
4.4.5 Rear Right Cover........................................................................................2-32
4.4.6 Tray 1..........................................................................................................2-33
4.4.7 Manual Feed Tray (magicolor 5440 DL/5450 only).....................................2-33
4.4.8 Control Panel (PWB-OP)............................................................................2-34
4.4.9 Hard Disk Unit (HDD) (magicolor 5450 only) .............................................2-34
4.4.10 Print Control Board (PWB-P) (magicolor 5430 DL/5440 DL) .....................2-35
4.4.11 Print Control Board (PWB-P) (magicolor 5450)..........................................2-36
4.4.12 Backup Battery (magicolor 5450 only) ....................................................... 2-37
4.4.13 Mechanical Control Board (PWB-A)...........................................................2-38
4.4.14 Low Voltage Unit (LV).................................................................................2-41
4.4.15 High Voltage Unit /1 (HV1).........................................................................2-42
4.4.16 High Voltage Unit /2 (HV2).........................................................................2-43
4.4.17 Toner Level Sensor Board (PWB-D)...........................................................2-44
4.4.18 PH Unit.......................................................................................................2-46
4.4.19 PWB Box/1................................................................................................. 2-47
4.4.20 PWB Box/2................................................................................................. 2-48
4.4.21 Developing Motor /Y, M, C (M1) .................................................................2-48
4.4.22 Color PC Drum Motor (M2) ........................................................................2-48
.................................2-49
.................................2-49
.................................2-49
4.4.26 Fusing Motor (M4)......................................................................................2-50
4.4.27 Intermediate Transport Motor (M3).............................................................2-50
4.4.28 Synchronizing Roller Clutch (CL2).............................................................2-50
4.4.29 Pressure/Retraction Clutch /2nd Image Transfer (CL5)..............................2-51
4.4.30 Pressure/Retraction Clutch /1st Image Transfer (CL4)............................... 2-53
4.4.31 Tray 1 Paper Feed Clutch (CL1).................................................................2-54