02/20002-34 DocuPrint N2125RAP 33 , RAP 34Initial IssueStatus Indicator Repair Analysis ProceduresRAP 33 MBF No Paper SensorProcedureEnter Diagnostics and select Component Test. Scroll to Sensor Input test and press Enter.Actuate and deactuate the MBF No Paper Sensor. The number on the LCD incrementseach time you press and release the actuator.Y NThe actuator moves freely and is in good condition (not broken or damaged).Y NReplace the MBF No Paper Sensor Actuator (REP 4.5).Switch the printer power off. Remove the Left Interface Cover (REP 1.1), Left Cover (REP1.2), and the Left Plate Assembly (REP 1.11). Switch the printer power on. On the PrintEngine Controller PWB, measure the voltage between P/J23 pin 14 and frame ground.The voltage is +3.3VDC with the MBF No Paper Sensor deactuated and 0.0VDC withthe Sensor actuated.Y NSwitch the printer power off. Remove the Left Front Cover (REP 1.7). Switch theprinter power on. On the Connector PWB, measure the voltage between P/J45 pin 3and frame ground. The voltage is +3.3VDC with the MBF No Paper Sensor deac-tuated and 0.0VDC with the Sensor actuated.Y NCheck the voltage between P/J45 pin 1 and frame ground. The voltage is1.2VDC.Y NReplace the Print Engine Controller PWB (REP 9.3).Replace the MBF No Paper Sensor (REP 4.8).Replace the Connector PWB (REP 9.7).Replace the Print Engine Controller PWB (REP 9.3).It appears that the MBF No Paper Sensor is working correctly. If a problem persists, replace thePrint Engine Controller PWB (REP 9.3).RAP 34 Tray 1 No Paper SensorProcedureRemove Tray 1. Enter Diagnostics and select Component Test. Scroll to Sensor Input test andpress Enter. Actuate and deactuate the Tray 1 No Paper Sensor Actuator. The number on theLCD increments each time you press and release the actuator.Y NVisually inspect the Tray 1 No Paper Sensor Actuator. The actuator moves freely and isin good condition (not broken or damaged).Y NReplace the Tray 1 No Paper Sensor Actuator (REP 3.3).Switch the printer power off. Remove the Left Interface Cover (REP 1.1), Left Cover (REP1.2), and the Left Plate Assembly (REP 1.11). Switch the printer power on. On the PrintEngine Controller PWB, measure the voltage between P/J33 pin 2 and frame ground asyou actuate and deactuate the No paper Sensor. The voltage is 3.3VDC with the sen-sor deactuated and 0.0VDC with the sensor actuated.Y NCheck the voltage between P/J33 pin 8 and frame ground. The voltage 3.3VDC.Y NReplace the Print Engine Controller PWB (REP 9.3).Replace the Tray 1 Feeder PWB (REP 3.9).Replace the Print Engine Controller PWB (REP 9.3).It appears that the Tray 1 No Paper Sensor is working correctly. If a problem persists, replacethe Print Engine Controller PWB (REP 9.3).
