ContentsContents9.1 Control Panel...................................................................................................................................................... 9-19.1.1 Overview ..................................................................................................................................................... 9-19.2 Fans .................................................................................................................................................................... 9-19.2.1 Overview ..................................................................................................................................................... 9-19.2.2 Fan Control.................................................................................................................................................. 9-19.3 Power Supply System......................................................................................................................................... 9-29.3.1 Power Supply .............................................................................................................................................. 9-29.3.1.1 Outline .................................................................................................................................................. 9-29.3.1.2 Rated Output of the Power Supply PCB .............................................................................................. 9-29.4 Parts Replacement Procedure............................................................................................................................. 9-39.4.1 Main Drive Assembly ................................................................................................................................. 9-39.4.1.1 Removing the Drum Unit ..................................................................................................................... 9-39.4.1.2 Removing the Rear Cover .................................................................................................................... 9-39.4.1.3 Removing the Left Cover (Rear).......................................................................................................... 9-39.4.1.4 Removing the Main Motor ................................................................................................................... 9-39.4.1.5 Removing the Registration Clutch ....................................................................................................... 9-39.4.1.6 Removing the Main Drive Unit............................................................................................................ 9-49.4.2 Fixing Drive Assembly ............................................................................................................................... 9-59.4.2.1 Removing the Drum Unit ..................................................................................................................... 9-59.4.2.2 Removing the Rear Cover .................................................................................................................... 9-59.4.2.3 Removing the Left Cover (Rear).......................................................................................................... 9-59.4.2.4 Removing the Left Door....................................................................................................................... 9-59.4.2.5 Removing the Fixing Unit .................................................................................................................... 9-69.4.2.6 Removing the SDRAM ........................................................................................................................ 9-79.4.2.7 Removing the SDRAM ........................................................................................................................ 9-79.4.2.8 Removing the LAN Cover.................................................................................................................... 9-79.4.2.9 Removing the IP Cover ........................................................................................................................ 9-79.4.2.10 Removing the IP Cover ...................................................................................................................... 9-89.4.2.11 Removing the Image Processor PCB Mount...................................................................................... 9-89.4.2.12 Removing the Fixing Drive Unit........................................................................................................ 9-99.4.3 Power Supply Unit .................................................................................................................................... 9-109.4.3.1 Removing the Rear Cover .................................................................................................................. 9-109.4.3.2 Removing the Right Cover (Lower)................................................................................................... 9-109.4.3.3 Removing the Delivery Tray .............................................................................................................. 9-109.4.3.4 Removing the Main Power Supply PCB ............................................................................................ 9-109.4.4 Control Panel ............................................................................................................................................. 9-109.4.4.1 Removing the Reader Front Cover..................................................................................................... 9-109.4.4.2 Removing the Operation Panel Unit................................................................................................... 9-119.4.5 DC Controller PCB ................................................................................................................................... 9-119.4.5.1 Removing the Rear Cover .................................................................................................................. 9-119.4.5.2 Removing the DC Controller PCB ..................................................................................................... 9-119.4.6 Option Power Supply PCB........................................................................................................................ 9-119.4.6.1 Removing the Rear Cover .................................................................................................................. 9-119.4.6.2 Removing the Right Cover (Lower)................................................................................................... 9-11