02/20004-45DocuPrint N2025/N2825 REP 8.3, REP 8.4Repair-AdjustmentInitial IssueREP 8.3 Duplex Interface PWBParts List on PL 11.1RemovalCAUTIONThese components are susceptible to electrostatic discharge. Observe all ESD procedures toavoid damage.WARNINGSwitch off the power and disconnect the Power Cord.1. Remove the Rear Cover (REP 1.9).2. Remove the HVPS Cover (REP 1.6).3. DIsconnect P/J501, P/J504, and P/J506 from the Duplex Interface PWB (Figure 1).4. Remove the two screws that secure the Duplex Interface PWB to the printer (Figure 1).5. Remove the Duplex Interface PWB (Figure 1).Figure 1 Duplex Interface PWBReplacement1. Reinstall the components in the reverse order.REP 8.4 Main FanParts List on PL 9.1RemovalCAUTIONThese components are susceptible to electrostatic discharge. Observe all ESD procedures toavoid damage.WARNINGSwitch off the power and disconnect the Power Cord.1. Remove the Lower Rear Cover (REP 1.7).2. Remove the Rear Cover (REP 1.9).3. Remove the OCT if installed (REP 10.1).4. Remove the Left Side Cover (REP 1.1).5. Open the Top Cover and remove the Print Cartridge. Cover the cartridge to protect it fromlight.6. Remove the Top Cover Assembly (REP 1.3).7. Remove the screw that secures the left edge of the HVPS Cover (Figure 1).8. Disconnect P/J165 from the LVPS PWB (Figure 1).9. Remove the three screws that secure the Fan Guard to the printer (Figure 1).10. Remove Fan Harness from all clamps.11. Remove the screw that secures the Main Fan to the printer (Figure 1). Remove the fan.Figure 1 Main FanReplacement1. Reinstall the components in the reverse order.