02/20002-52 DocuPrint N2025/N2825RAP 54, RAP 55Initial IssueStatus Indicator Repair Analysis ProceduresRAP 54 C3: Tray Out / Install Tray 2 (or Tray 3)Tray 2, Tray 3.ProcedureRemove and reinstall the paper Tray. Enter Diagnostics and Select Test Print. Run Test Printfrom problem tray. The C3 error code still appears.Y NProblem solved.Inspect the Paper Stack End Guide position in the tray. The End Guide is snug against thepaper stack.Y NAdjust the position of the End Guide.Enter Diagnostics and select Component Test. Scroll to Tray 2 Size or Tray 3 Size. Press theEnter Key (key 4). The paper size indicated on the LCD matches the paper size actually inTray 1.Y NRemove the paper tray. Scroll to Sensor Input test. One at a time, press and release eachof the size actuators for the problem tray. The number on the LCD increments eachtime you press and release one of the actuators.Y NGo to RAP 37Check the size cam on the left side of the paper tray. The cams are in good condition(not broken) and rotate freely as the paper tray end guide is moved.Y NReplace Tray 1 (PL 2.1/ PL 2.2).Remove the 500 Sheet Feeder Left Cover (REP 11.3). As you insert the paper tray, watchthe size actuators move depending on the setting of paper tray. See Table 1.The Tray 1 Size Cams contact the Paper Size Actuators correctly for each size ofpaper.Y NReplace the paper tray (PL 2.1/ PL 2.2). If the problem persists, replace the Tray 1Left Guide Assembly (REP 3.6).Replace the Tray 1 Left Guide Assembly (REP 3.6).Replace the Print Engine Controller PWB (REP 8.5).RAP 55 Pre-Registration SensorProcedureOpen the 500 Sheet Feeder Rear Cover. Manually actuate and deactuate the Pre-RegistrationActuator. The Pre-Registration Actuator moves smoothly.Y NReplace the Pre-Registration Actuator (PL 11.2).Enter Diagnostics and select Component Test. Scroll to Sensor Input test and press Enter.Press and release the Pre-Registration Actuator. The number on the LCD increments eachtime you press and release the actuator.Y NSwitch the printer power off. Remove the 500 Sheet Feeder Left Cover (REP 11.3). Dis-connect P/J133 from the Feeder PWB. Switch the printer power on. Measure the voltagebetween P133 pin 7 and frame ground and between P133 pin 9 and frame ground. Bothreadings are +3.2VDC.Y NReplace the Feeder PWB (REP 11.8).Switch the printer power off. Reconnect P/J133. Switch the printer power on. Measure thevoltage between P/J133 pin 6 and frame ground as you actuate and deactuate the Pre-Registration Sensor Actuator. The voltage is +3.2VDC when deactuated and 0.0VDCwhen actuated.Y NCheck for continuity between P/J133 and P/J13P and between P/J13P and P/J13C.Repair or replace as necessary. If the harness checks good, replace the Pre-Regis-tration Sensor (REP 11.22).With paper in the tray and the tray inserted into the 500 Sheet Feeder. measure the volt-age between P/J132 pin 7 and frame ground as you actuate and deactuate the Pre-Reg-istration Sensor. The voltage is +2.76VDC when deactuated and 3.2VDC when actu-ated.Y NReplace the Feeder PWB (REP 11.8).Switch the printer power off. Remove the printer Left Side Cover (REP 1.1) and the PrintEngine Controller PWB Cover (REP 8.5). Switch the printer power on. Measure the volt-age between P/J13 pin 7 and frame ground as you actuate and deactuate the Pre-Regis-tration Sensor. The voltage is +2.76VDC when deactuated and 3.2VDC when actu-ated.Y NCheck for continuity between P/J132 and P/J131 and between P/J131 and P/J13.Repair or replace as necessary.Replace the Print Engine Controller PWB (REP 8.5).Replace the Print Engine Controller PWB (REP 8.5).Table 1 Paper Size ActuatorsActuator8.5LEFA4LEFB5LEFA5LEF14"SEF8.5"SEFA4SEFB4SEF4 Top x x x x x3 x x x x x2 x x x x1 Bottom x x x x
