Canon L120 Series Service Manual page 51

3.2.3.10 Removing the Separation Roller .................................................................................................................................................................3-24
3.2.4 Feed Roller................................................................................................................................................................................. 3-25
3.2.4.1 Removing the Right Cover............................................................................................................................................................................3-25
3.2.4.2 Removing the Left Cover..............................................................................................................................................................................3-25
3.2.4.3 Removing the Front Cover............................................................................................................................................................................3-25
3.2.4.4 Removing the Rear Cover .............................................................................................................................................................................3-26
3.2.4.5 Removing the Cartridge Cover .....................................................................................................................................................................3-26
3.2.4.6 Removing the Operation Panel Unit .............................................................................................................................................................3-26
3.2.4.7 Removing the Upper Cover ..........................................................................................................................................................................3-26
3.2.4.8 Removing the Reader Unit............................................................................................................................................................................3-27
3.2.4.9 Removing the Upper Reader Unit Frame......................................................................................................................................................3-27
3.2.4.10 Removing the Document Feed Roller.........................................................................................................................................................3-27
3.2.5 Reader Unit ................................................................................................................................................................................ 3-28
3.2.5.1 Removing the Right Cover............................................................................................................................................................................3-28
3.2.5.2 Removing the Left Cover..............................................................................................................................................................................3-28
3.2.5.3 Removing the Front Cover............................................................................................................................................................................3-28
3.2.5.4 Removing the Rear Cover .............................................................................................................................................................................3-29
3.2.5.5 Removing the Cartridge Cover .....................................................................................................................................................................3-29
3.2.5.6 Removing the Operation Panel Unit .............................................................................................................................................................3-29
3.2.5.7 Removing the Upper Cover ..........................................................................................................................................................................3-29
3.2.5.8 Removing the Reader Unit............................................................................................................................................................................3-30
3.2.6 Document Feed Motor ............................................................................................................................................................... 3-30
3.2.6.1 Removing the Right Cover............................................................................................................................................................................3-30
3.2.6.2 Removing the Left Cover..............................................................................................................................................................................3-30
3.2.6.3 Removing the Front Cover............................................................................................................................................................................3-30
3.2.6.4 Removing the Rear Cover .............................................................................................................................................................................3-31
3.2.6.5 Removing the Cartridge Cover .....................................................................................................................................................................3-31
3.2.6.6 Removing the Operation Panel Unit .............................................................................................................................................................3-31
3.2.6.7 Removing the Upper Cover ..........................................................................................................................................................................3-32
3.2.6.8 Removing the Reader Unit............................................................................................................................................................................3-32
3.2.6.9 Removing the Document Feed Motor...........................................................................................................................................................3-32
3.2.7 DS/DES Sensor .......................................................................................................................................................................... 3-32
3.2.7.1 Removing the Right Cover............................................................................................................................................................................3-32
3.2.7.2 Removing the Left Cover..............................................................................................................................................................................3-32
3.2.7.3 Removing the Front Cover............................................................................................................................................................................3-33
3.2.7.4 Removing the Rear Cover .............................................................................................................................................................................3-33
3.2.7.5 Removing the Cartridge Cover .....................................................................................................................................................................3-33
3.2.7.6 Removing the Operation Panel Unit .............................................................................................................................................................3-34
3.2.7.7 Removing the Upper Cover ..........................................................................................................................................................................3-34
3.2.7.8 Removing the Reader Unit............................................................................................................................................................................3-34
3.2.7.9 Removing the Upper Reader Unit Frame......................................................................................................................................................3-34
3.2.7.10 Removing the DS/DES Sensor...................................................................................................................................................................3-34
3.3 LASER EXPOSURE SYSTEM...................................................................................................................................3-36
3.3.1 Laser/Scanner Unit..................................................................................................................................................................... 3-36
3.3.1.1 Removing the Right Cover............................................................................................................................................................................3-36
3.3.1.2 Removing the Left Cover..............................................................................................................................................................................3-36
3.3.1.3 Removing the Front Cover............................................................................................................................................................................3-36
3.3.1.4 Removing the Rear Cover .............................................................................................................................................................................3-36
3.3.1.5 Removing the Cartridge Cover .....................................................................................................................................................................3-36
3.3.1.6 Removing the Operation Panel Unit .............................................................................................................................................................3-37
3.3.1.7 Removing the Upper Cover ..........................................................................................................................................................................3-37
3.3.1.8 Removing the Reader Unit............................................................................................................................................................................3-37
3.3.1.9 Removing the DCNT board ..........................................................................................................................................................................3-37
3.3.1.10 Removing the Laser/Scanner Unit ..............................................................................................................................................................3-38
3.4 IMAGE FORMATION SYSTEM ...............................................................................................................................3-39
3.4.1 Transfer Charging Roller ........................................................................................................................................................... 3-39
3.4.1.1 Removing the Transfer Charging Roller.......................................................................................................................................................3-39
3.5 PICKUP AND FEEDING SYSTEM ...........................................................................................................................3-40
3.5.1 Pickup Unit ................................................................................................................................................................................ 3-40
3.5.1.1 Removing the Transfer Charging Roller.......................................................................................................................................................3-40
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