Canon iR2020 Series Service Manual page 211

Contents
9.1 Control Panel...................................................................................................................................................... 9-1
9.1.1 Overview ..................................................................................................................................................... 9-1
9.2 Fans .................................................................................................................................................................... 9-1
9.2.1 Overview ..................................................................................................................................................... 9-1
9.2.2 Fan Control.................................................................................................................................................. 9-1
9.3 Power Supply System......................................................................................................................................... 9-2
9.3.1 Power Supply .............................................................................................................................................. 9-2
9.3.1.1 Outline .................................................................................................................................................. 9-2
9.3.1.2 Rated Output of the Power Supply PCB .............................................................................................. 9-2
9.4 Parts Replacement Procedure............................................................................................................................. 9-3
9.4.1 Main Drive Assembly ................................................................................................................................. 9-3
9.4.1.1 Removing the Drum Unit ..................................................................................................................... 9-3
9.4.1.2 Removing the Rear Cover .................................................................................................................... 9-3
9.4.1.3 Removing the Left Cover (Rear).......................................................................................................... 9-3
9.4.1.4 Removing the Main Motor ................................................................................................................... 9-3
9.4.1.5 Removing the Registration Clutch ....................................................................................................... 9-3
9.4.1.6 Removing the Main Drive Unit............................................................................................................ 9-4
9.4.2 Fixing Drive Assembly ............................................................................................................................... 9-5
9.4.2.1 Removing the Drum Unit ..................................................................................................................... 9-5
9.4.2.2 Removing the Rear Cover .................................................................................................................... 9-5
9.4.2.3 Removing the Left Cover (Rear).......................................................................................................... 9-5
9.4.2.4 Removing the Left Door....................................................................................................................... 9-5
9.4.2.5 Removing the Fixing Unit .................................................................................................................... 9-6
9.4.2.6 Removing the SDRAM ........................................................................................................................ 9-7
9.4.2.7 Removing the SDRAM ........................................................................................................................ 9-7
9.4.2.8 Removing the LAN Cover.................................................................................................................... 9-7
9.4.2.9 Removing the IP Cover ........................................................................................................................ 9-7
9.4.2.10 Removing the IP Cover ...................................................................................................................... 9-8
9.4.2.11 Removing the Image Processor PCB Mount...................................................................................... 9-8
9.4.2.12 Removing the Fixing Drive Unit........................................................................................................ 9-9
9.4.3 Power Supply Unit .................................................................................................................................... 9-10
9.4.3.1 Removing the Rear Cover .................................................................................................................. 9-10
9.4.3.2 Removing the Right Cover (Lower)................................................................................................... 9-10
9.4.3.3 Removing the Delivery Tray .............................................................................................................. 9-10
9.4.3.4 Removing the Main Power Supply PCB ............................................................................................ 9-10
9.4.4 Control Panel ............................................................................................................................................. 9-10
9.4.4.1 Removing the Reader Front Cover..................................................................................................... 9-10
9.4.4.2 Removing the Operation Panel Unit................................................................................................... 9-11
9.4.5 DC Controller PCB ................................................................................................................................... 9-11
9.4.5.1 Removing the Rear Cover .................................................................................................................. 9-11
9.4.5.2 Removing the DC Controller PCB ..................................................................................................... 9-11
9.4.6 Option Power Supply PCB........................................................................................................................ 9-11
9.4.6.1 Removing the Rear Cover .................................................................................................................. 9-11
9.4.6.2 Removing the Right Cover (Lower)................................................................................................... 9-11
Contents