Contents5.4.3.9 Removing the Scanning Lamp...................................................................................................................................................................... 5-235.4.3.10 When Replacing the Scanning Lamp.......................................................................................................................................................... 5-245.4.4 Reader Controller PCB .............................................................................................................................................................. 5-245.4.4.1 Removing the Copyboard Glass ................................................................................................................................................................... 5-245.4.4.2 Removing the CCD Unit Cover.................................................................................................................................................................... 5-245.4.4.3 Removing the Original Size Sensor Unit...................................................................................................................................................... 5-255.4.4.4 Removing the Reader Controller PCB.......................................................................................................................................................... 5-255.4.4.5 After Replacing the Reader Controller PCB................................................................................................................................................. 5-255.4.5 Interface PCB............................................................................................................................................................................. 5-265.4.5.1 Removing the Reader Unit Rear Cover ........................................................................................................................................................ 5-265.4.5.2 Removing the Interface PCB ........................................................................................................................................................................ 5-265.4.6 Inverter PCB .............................................................................................................................................................................. 5-275.4.6.1 Removing the Copyboard Glass ................................................................................................................................................................... 5-275.4.6.2 Removing the CCD Unit Cover.................................................................................................................................................................... 5-285.4.6.3 Removing the Inverter PCB.......................................................................................................................................................................... 5-285.4.6.4 When Replacing the Inverter PCB................................................................................................................................................................ 5-285.4.7 Scanner Motor............................................................................................................................................................................ 5-285.4.7.1 Removing the Reader Unit Rear Cover ........................................................................................................................................................ 5-285.4.7.2 Removing the Scanner Motor ....................................................................................................................................................................... 5-295.4.7.3 Mounting the Scanner Motor ........................................................................................................................................................................ 5-305.4.8 ADF Open/Close Sensor............................................................................................................................................................ 5-305.4.8.1 Removing the Reader Unit Rear Cover ........................................................................................................................................................ 5-305.4.8.2 Removing the ADF Open/Closed Sensor ..................................................................................................................................................... 5-315.4.9 Scanner HP Sensor..................................................................................................................................................................... 5-315.4.9.1 Removing the Reader Unit Rear Cover ........................................................................................................................................................ 5-315.4.9.2 Removing the Mirror Base Home Position Sensor....................................................................................................................................... 5-325.4.10 Original Size Sensor ................................................................................................................................................................ 5-325.4.10.1 Removing the Copyboard Glass ................................................................................................................................................................. 5-325.4.10.2 Removing the CCD Unit Cover.................................................................................................................................................................. 5-335.4.10.3 Removing the Original Size Sensor Unit.................................................................................................................................................... 5-335.4.10.4 Removing the Original Size Sensor............................................................................................................................................................ 5-345.4.11 Cooling Fan.............................................................................................................................................................................. 5-345.4.11.1 Removing the Reader Unit Rear Cover ...................................................................................................................................................... 5-345.4.11.2 Removing the Cooling Fan ......................................................................................................................................................................... 5-345.4.12 Scanner Drive Cable ................................................................................................................................................................ 5-355.4.12.1 Outline ........................................................................................................................................................................................................ 5-355.4.12.2 Removing the Copyboard Glass ................................................................................................................................................................. 5-355.4.12.3 Removing the Right Cover (upper) ............................................................................................................................................................ 5-355.4.12.4 Removing the Reader Right Cover ............................................................................................................................................................. 5-355.4.12.5 Removing the Left Cover (upper)............................................................................................................................................................... 5-355.4.12.6 Removing the Reader Left Cover ............................................................................................................................................................... 5-365.4.12.7 Removing the Reader Front Cover ............................................................................................................................................................. 5-365.4.12.8 Removing the Reader Unit Rear Cover ...................................................................................................................................................... 5-365.4.12.9 Removing the ADF ..................................................................................................................................................................................... 5-375.4.12.10 Removing the Control Panel..................................................................................................................................................................... 5-375.4.12.11 Removing the Scanner Drive Cable.......................................................................................................................................................... 5-385.4.12.12 Fitting the Scanner Drive Cable................................................................................................................................................................ 5-415.4.12.13 Adjusting the Position of the No. 1/No. 2 Mirror Base ............................................................................................................................ 5-41