33 3-323-32Disassembly/Assembly > Controller System > Removing the Main Drive Unit > ProcedureDisassembly/Assembly > Controller System > Removing the Main Drive Unit > ProcedureRemoving the Main Drive Unit■ Preparation1) Remove the Right Cover.(Refer to page 3-16)2) Remove the Operation Panel Unit.(Refer to page 3-36)3) Remove the Rear Upper Cover (Left).(Refer to page 3-14)4) Remove the USB Cover.(Refer to page 3-18)5) Remove the Upper Cover.(Refer to page 3-19)6) Remove the Right Frame Cover.(Refer to page 3-27)7) Remove the Right Upper Frame/Right Upper Frame Unit.(Refer to page 0-11) / (Refer topage 3-29)8) Remove the Main Controller Support Plate.(Refer to page 3-31)9) Remove the Drum Motor.(Refer to page 3-59)10) Remove the Developing Motor.(Refer to page 3-61)11) Remove the DC Controller PCB.(Refer to page 3-39)12) Remove the Driver PCB.(Refer to page 3-42)13) Remove the Relay PCB.(Refer to page 3-40)14) Remove the Fixing Motor.(Refer to page 3-74)15) Remove the Power Supply Unit.(Refer to page 3-42)■ Procedure1) Remove the plate [1].• 1 Special Flat-head Screw [2]• 2 Black Screws [3]• 3 Screws [4]• 2 Bosses [5]• 1 Protrusion [6]CAUTION:Since the Special Flat-head Screw [2] adjusts the interval between the plate [1] andparts in the vicinity, be sure to install the Special Flat-head Screw [2] in the location itwas in before removal.x6[2][4][3][1][5][5][6] [3] [4]F-3-58