Service manual
Contents
3.3.10.3 Removing the SCNT Board Unit .......................................................................................................................................... 3- 69
3.3.10.4 Removing the ADF Unit ....................................................................................................................................................... 3- 69
3.3.10.5 Points to Note When Mounting the ADF Unit....................................................................................................................... 3- 70
3.3.10.6 Removing the Document feed motor ................................................................................................................................... 3- 70
3.3.11 DS Sensor ...........................................................................................................................................................3- 70
3.3.11.1 Removing the ADF Paper Sensor........................................................................................................................................ 3- 70
3.3.12 DES Sensor ......................................................................................................................................................... 3- 71
3.3.12.1 Removing the ADF Feed Sensor ......................................................................................................................................... 3- 71
3.3.13 Speaker ...............................................................................................................................................................3- 71
3.3.13.1 Removing the Rear Cover.................................................................................................................................................... 3- 71
3.3.13.2 Removing the Scanner Unit ................................................................................................................................................. 3- 72
3.3.13.3 Removing the SCNT Board Unit .......................................................................................................................................... 3- 72
3.3.13.4 Removing the Speaker......................................................................................................................................................... 3- 72
3.4 LASER EXPOSURE SYSTEM .................................................................................................................3- 72
3.4.1 Laser/Scanner Unit................................................................................................................................................3- 72
3.4.1.1 Removing the Rear Cover ..................................................................................................................................................... 3- 72
3.4.1.2 Removing the Reader Assembly ........................................................................................................................................... 3- 73
3.4.1.3 Removing the Right Cover..................................................................................................................................................... 3- 74
3.4.1.4 Removing the Left Cover ....................................................................................................................................................... 3- 74
3.4.1.5 Removing the Power Supply Assembly ................................................................................................................................. 3- 74
3.4.1.6 Removing the Face-Down Cover........................................................................................................................................... 3- 74
3.4.1.7 Removing the Top Cover ....................................................................................................................................................... 3- 74
3.4.1.8 Removing the Laser Scanner Unit ......................................................................................................................................... 3- 76
3.5 IMAGE FORMATION SYSTEM................................................................................................................3- 76
3.5.1 Rotary Drive Unit ...................................................................................................................................................3- 76
3.5.1.1 Removing the Rear Cover ..................................................................................................................................................... 3- 76
3.5.1.2 Removing the Reader Assembly ........................................................................................................................................... 3- 76
3.5.1.3 Removing the Right Cover..................................................................................................................................................... 3- 77
3.5.1.4 Removing the Left Cover ....................................................................................................................................................... 3- 77
3.5.1.5 Removing the Power Supply Assembly ................................................................................................................................. 3- 78
3.5.1.6 Removing the Face-Down Cover........................................................................................................................................... 3- 78
3.5.1.7 Removing the Top Cover ....................................................................................................................................................... 3- 78
3.5.1.8 Removing the Right Frame .................................................................................................................................................... 3- 79
3.5.1.9 Removing the Shield Plate..................................................................................................................................................... 3- 79
3.5.1.10 Removing the Rotary Drive Assembly ................................................................................................................................. 3- 79
3.5.2 Drum Cartridge Memory Tag Contact ...................................................................................................................3- 80
3.5.2.1 Removing the Rear Cover ..................................................................................................................................................... 3- 80
3.5.2.2 Removing the Reader Assembly ........................................................................................................................................... 3- 80
3.5.2.3 Removing the Right Cover..................................................................................................................................................... 3- 81
3.5.2.4 Removing the Left Cover ....................................................................................................................................................... 3- 81
3.5.2.5 Removing the Power Supply Assembly ................................................................................................................................. 3- 82
3.5.2.6 Removing the Face-Down Cover........................................................................................................................................... 3- 82
3.5.2.7 Removing the Top Cover ....................................................................................................................................................... 3- 82
3.5.2.8 Removing the Right Frame .................................................................................................................................................... 3- 83
3.5.2.9 Removing the Shield Plate..................................................................................................................................................... 3- 83
3.5.2.10 Removing the Inside Cover.................................................................................................................................................. 3- 83
3.5.2.11 Removing the Drum Cartridge Memory Tag Contact........................................................................................................... 3- 84
3.5.3 Developing Rotary Unit..........................................................................................................................................3- 84
3.5.3.1 Removing the Rear Cover ..................................................................................................................................................... 3- 84
3.5.3.2 Removing the Reader Assembly ........................................................................................................................................... 3- 84
3.5.3.3 Removing the Right Cover..................................................................................................................................................... 3- 85
3.5.3.4 Removing the Left Cover ....................................................................................................................................................... 3- 85
3.5.3.5 Removing the Power Supply Assembly ................................................................................................................................. 3- 86
3.5.3.6 Removing the Face-Down Cover........................................................................................................................................... 3- 86
3.5.3.7 Removing the Top Cover ....................................................................................................................................................... 3- 86
3.5.3.8 Removing the Right Frame .................................................................................................................................................... 3- 87
3.5.3.9 Removing the Shield Plate..................................................................................................................................................... 3- 87
3.5.3.10 Removing the Inside Cover.................................................................................................................................................. 3- 87
3.5.3.11 Removing the Registration Clutch........................................................................................................................................ 3- 88
3.5.3.12 Removing the Main Drive Assembly .................................................................................................................................... 3- 88
3.5.3.13 Removing the Rotary Drive Assembly ................................................................................................................................. 3- 88