02/20002-41DocuPrint N2025/N2825 RAP 40, RAP 41Status Indicator Repair Analysis ProceduresInitial IssueRAP 40 Tray 1 Feed SolenoidProcedureEnter Diagnostics and select Component Test. Scroll to Tray 1 Feed Sol and press Enter. Youcan hear the solenoid energize.Y NSwitch the printer power off. Remove the Left Side Cover (REP 1.1) and the Print EngineController PWB Cover (REP 8.5). Disconnect P/J12 on the Print Engine Controller PWB.Measure the resistance between pins 12 and 13 on the disconnected plug. The resis-tance is approximately 90 ohms.Y NRemove the MBF Assembly. On the MBF assembly, measure the resistancebetween P121 pin 9 and pin 10. The resistance is approximately 90 ohms.Y NRemove the MBF Gear Cover. Disconnect the Tray 1 Feed Solenoid inline con-nector (P/J123). Measure the resistance of the solenoid. The resistance isapproximately 90 ohms.Y NReplace the Tray 1 Feed Solenoid (REP 2.9).Repair or replace the MBF Combo Harness (PL 4.2).Repair or replace the MBF Harness (P/J12 to P/J121) (PL 9.1).Switch the printer power on. Measure the voltage between P/J12 pin 12 on the PrintEngine Controller PWB and frame ground. The voltage is +24VDC.Y NMeasure the voltage between P/J16 pin 9 and frame ground. The voltage is+24VDC.Y NReplace the LVPS (REP 8.6).Replace the Print Engine Controller PWB (REP 8.5).Switch the printer power off. Reconnect P/J12. Enter Diagnostics and select ComponentTest. Scroll to Tray 1 Feed Sol. Measure the voltage between P/J12 pin 13 and frameground. Press the Enter key. The voltage drops from +24VDC to 0.0VDC.Y NReplace the Print Engine Controller PWB (REP 8.5).Check for mechanical binding of the solenoid or a defective spring. If the problem persists,replace the Tray 1 Feed Solenoid (REP 2.9).Scroll to Main Motor and press Enter. The Tray 1 Feed Rolls will rotate one revolution and feeda sheet of paper to the Tray 1 Turn Rolls. Open and close the Top Cover to stop the Main Motor.Open Tray 1 and remove the sheet of paper. Scroll to Main Motor and press Enter. Scroll toTurn Roll Clutch and press Enter. Scroll to Tray 1 Feed Sol and press Enter. A sheet of paperis fed from Tray 1 to the Registration Rolls.Y NReplace the Tray 1 Feed Solenoid (REP 2.9).Problem solved.RAP 41 MBF Feed SolenoidProcedureEnter Diagnostics and select Component Test. Scroll to MBF Feed Sol and press Enter. Youcan hear the solenoid energize.Y NSwitch the printer power off. Remove the Left Side Cover (REP 1.1) and the Print EngineController PWB Cover (REP 8.5). Disconnect P/J12 on the Print Engine Controller PWB.Measure the resistance between pins 14 and 15 on the disconnected plug. The resis-tance is approximately 90 ohms.Y NRemove the MBF Assembly. On the MBF assembly, measure the resistancebetween P121 pin 9 and pin 10. The resistance is approximately 90 ohms.Y NRemove the MBF Gear Cover. Disconnect the MBF Feed Solenoid inline con-nector (P/J122). Measure the resistance of the solenoid. The resistance isapproximately 90 ohms.Y NReplace the MBF Feed Solenoid (REP 2.8).Repair or replace the MBF Combo Harness (PL 4.2).Repair or replace the MBF Harness (P/J12 to P/J121) (PL 9.1).Switch the printer power on. Measure the voltage between P/J12 pin 14 on the PrintEngine Controller PWB and frame ground. The voltage is +24VDC.Y NMeasure the voltage between P/J16 pin 9 and frame ground. The voltage is+24VDC.Y NReplace the LVPS (REP 8.6).Replace the Print Engine Controller PWB (REP 8.5).Switch the printer power off. Reconnect P/J12. Enter Diagnostics and select ComponentTest. Scroll to MBF Feed Sol. Measure the voltage between P/J12 pin 15 and frameground. Press the Enter key. The voltage drops from +24VDC to 0.0VDC.Y NReplace the Print Engine Controller PWB (REP 8.5).Check for mechanical binding of the solenoid or a defective spring. If the problem persists,replace the MBF Feed Solenoid (REP 2.9).Open the Top Cover and cheat the Top Cover Interlock. Remove the Print Cartridge. Add paperto the MBF. Scroll to Main Motor and press Enter. The MBF Feed Rolls will rotate one revolu-tion and feed a sheet of paper to the Registration Rolls. Open and close the Top Cover to stopthe Main Motor. A sheet of paper is fed from the MBF to the Registration Rolls.Y NReplace the MBF Feed Solenoid (REP 2.8).Problem solved.
