Canon MF8100 Series Service Manual page 84

Contents
3.3.3.3 Removing the SCNT Board Unit.................................................................................................................................................................. 3-54
3.3.3.4 Removing the ADF Unit............................................................................................................................................................................... 3-54
3.3.3.5 Removing the operation Panel ...................................................................................................................................................................... 3-54
3.3.3.6 Removing the Scanner Cover Unit ............................................................................................................................................................... 3-55
3.3.4 CCD Unit ................................................................................................................................................................................... 3-55
3.3.4.1 Removing the Rear Cover............................................................................................................................................................................. 3-55
3.3.4.2 Removing the Scanner Unit .......................................................................................................................................................................... 3-55
3.3.4.3 Removing the NCU Board............................................................................................................................................................................ 3-56
3.3.4.4 Removing the SCNT Board Unit.................................................................................................................................................................. 3-56
3.3.4.5 Removing the ADF Unit............................................................................................................................................................................... 3-56
3.3.4.6 Removing the operation Panel ...................................................................................................................................................................... 3-57
3.3.4.7 Removing the Scanner Cover Unit ............................................................................................................................................................... 3-57
3.3.4.8 Removing the Flat Bed Motor Unit .............................................................................................................................................................. 3-57
3.3.4.9 Removing the CCD Unit............................................................................................................................................................................... 3-57
3.3.5 Separation Guide Unit................................................................................................................................................................ 3-57
3.3.5.1 Removing the Rear Cover............................................................................................................................................................................. 3-57
3.3.5.2 Removing the Scanner Unit .......................................................................................................................................................................... 3-58
3.3.5.3 Removing the SCNT Board Unit.................................................................................................................................................................. 3-58
3.3.5.4 Removing the ADF Unit............................................................................................................................................................................... 3-58
3.3.5.5 Points to Note When Mounting the ADF Unit ............................................................................................................................................. 3-59
3.3.5.6 Removing the Document Pickup Roller Unit ............................................................................................................................................... 3-59
3.3.5.7 Removing the Separation guide unit............................................................................................................................................................. 3-60
3.3.6 Feed Roller................................................................................................................................................................................. 3-60
3.3.6.1 Removing the Rear Cover............................................................................................................................................................................. 3-60
3.3.6.2 Removing the Scanner Unit .......................................................................................................................................................................... 3-60
3.3.6.3 Removing the SCNT Board Unit.................................................................................................................................................................. 3-61
3.3.6.4 Removing the ADF Unit............................................................................................................................................................................... 3-61
3.3.6.5 Points to Note When Mounting the ADF Unit ............................................................................................................................................. 3-61
3.3.6.6 Removing the Document feed roller............................................................................................................................................................. 3-61
3.3.7 Pickup Roller Unit ..................................................................................................................................................................... 3-63
3.3.7.1 Removing the Rear Cover............................................................................................................................................................................. 3-63
3.3.7.2 Removing the Scanner Unit .......................................................................................................................................................................... 3-63
3.3.7.3 Removing the SCNT Board Unit.................................................................................................................................................................. 3-63
3.3.7.4 Removing the ADF Unit............................................................................................................................................................................... 3-64
3.3.7.5 Points to Note When Mounting the ADF Unit ............................................................................................................................................. 3-64
3.3.7.6 Removing the Document Pickup Roller Unit ............................................................................................................................................... 3-64
3.3.8 Reader Unit ................................................................................................................................................................................ 3-65
3.3.8.1 Removing the Rear Cover............................................................................................................................................................................. 3-65
3.3.8.2 Removing the Reader Assembly................................................................................................................................................................... 3-65
3.3.9 Flatbed Motor Unit .................................................................................................................................................................... 3-66
3.3.9.1 Removing the Rear Cover............................................................................................................................................................................. 3-66
3.3.9.2 Removing the Scanner Unit .......................................................................................................................................................................... 3-67
3.3.9.3 Removing the SCNT Board Unit.................................................................................................................................................................. 3-67
3.3.9.4 Removing the ADF Unit............................................................................................................................................................................... 3-67
3.3.9.5 Removing the operation Panel ...................................................................................................................................................................... 3-68
3.3.9.6 Removing the Scanner Cover Unit ............................................................................................................................................................... 3-68
3.3.9.7 Removing the Flat Bed Motor Unit .............................................................................................................................................................. 3-68
3.3.10 Document Feed Motor ............................................................................................................................................................. 3-68
3.3.10.1 Removing the Rear Cover........................................................................................................................................................................... 3-68
3.3.10.2 Removing the Scanner Unit ........................................................................................................................................................................ 3-69
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