3. Remove the DC Controller PCB [1].• 8 connectors [2]• 5 screws [3][2][2][2][3][3][3][3][1][2]5x8x■ After Replacing the DC ControllerPCB1. In service mode, perform the following procedure torestore the DC Controller setting values.COPIER > FUINCTION > VIFFNC > RSTR-DCNWhen restoration is executed, "ACTIVE" will bedisplayed, and then "OK!" will be displayed in about 2minutes at the completion of restoration.2. When backup data cannot be uploaded beforereplacement due to reasons such as damage of theDC Controller PCB, enter the value of each servicemode item described on the service label.3. Turn OFF and then ON the power.4. Configure the following settings from the ControlPanel.• Menu > Adjustment/Maintenance > Print ColorDisplacement Correction• Menu > Adjustment/Maintenance > Auto GradationCorrection > Quick Correction5. Turn OFF and then ON the power.Removing the High VoltagePower Supply PCB■ Preparation1. Removing the Right Cover.(Refer to “Removing theRight Cover” on page 120)2. Removing the Left Cover.(Refer to “Removing theLeft Cover” on page 118)3. Removing the Rear Upper Cover.(Refer to“Removing the Rear Upper Cover” on page 123)4. Removing the ADF Unit + Reader Unit.(Refer to“Removing the ADF Unit + Reader Unit” on page130)5. Removing the Right Front Cover.(Refer to“Removing the Right Front Cover” on page 121)6. Removing the Upper Cover.(Refer to “Removing theUpper Cover” on page 125)■ Procedure1. Remove the Harness Cover Plate [1].• 2 screws [2][1][2][2]2x2. Remove the harness guide [1].• 6 claws [2][2][2][1][2][2][2]6x3. Disconnect the flat cable [1].[1]1x4. Disassembly/Assembly163
