02/20002-45DocuPrint N2125 RAP 52 , RAP 53Status Indicator Repair Analysis ProceduresInitial IssueRAP 52 Low Paper Tray 2 (or Tray 3) 550 Sheet FeederTray 2 and/or Tray 3 have low paper.ProcedureFill the affected paper tray with fresh paper. The Error Code is still displayed.Y NProblem solved.Remove the paper tray from affected Feeder Assembly. Manually push up and release the lowpaper actuator. The low paper actuator moves smoothly up and down.Y NInspect the Low Paper Actuator. Repair or replace as required.Enter Diagnostics and select Component Test. Scroll to Sensor Input test and press Enter.Press and release the Low Paper Actuator. The number on the LCD increments each timeyou press and release the actuator.Y NSwitch 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, check the voltage between P/J33 pin 8 and frame ground. Thevoltage is 3.3VDC.Y NOn the Print Engine Controller PWB, check the voltage between P/J28 pin 10 andframe ground. The voltage is 3.3VDC.Y NReplace the LVPS (REP 9.5).Replace the Print Engine Controller PWB (REP 9.3).Enter diagnostics and select Component Test. Scroll to Sensor Input test and press Enter.On the Print Engine Controller PWB, for Tray 2, check the voltage between P/J33 pin 9and frame ground; for Tray 3, check the voltage between P/J33 pin 10 and frame ground.Check the voltage as you actuate the Low Paper Sensor. The voltage changes from3.3VDC to 0.0VDC.Y NReplace the Low Paper Sensor (REP 11.14) for the affected tray. If the problem per-sists, replace the Feeder PWB (REP 11.9) then the Size PWB (REP 11.19).Replace the Print Engine Controller PWB (REP 9.3).Replace the Print Engine Controller PWB (REP 9.3).RAP 53 550 Sheet Feeder Feed ClutchThe 550 Sheet Feeder is not feeding paper or not feeding paper at the correct time.ProcedureEnter Diagnostics and select Component Test. Scroll to Confirm Tray 2 Feed Clutch or ConfirmTray 3 Feed Clutch and press Enter. You can hear the clutch energize.Y NSwitch the printer power off. Remove the Left Interface Cover (REP 1.1), Left Cover (REP1.2), and the Left Plate Assembly (REP 1.11). Enter diagnostics and select ComponentTest. Scroll to Confirm Tray 2 Feed Clutch or Confirm Tray 3 Feed Clutch. On the PrintEngine Controller PWB, for Tray 2, check the voltage between P/J33 pin 13 and frameground; for Tray 3, check the voltage between P/J33 pin 14 and frame ground. The volt-age is +24VDC.Y NRemove the Sheet Feeder Drive Assembly (REP 11.6) for the affected feeder. Dis-connect P/J651 from the Feed Clutch. Measure the resistance between the two pinson the feed clutch. The resistance is 140 to 170 ohms.Y NReplace the Paper Feed Clutch (REP 11.10).Replace the Feeder PWB (REP 11.9). If the problem persists, replace the Size PWB(REP 11.19).Press the Enter key. The voltage drops from +24VDC to 0.0VDC.Y NReplace the Print Engine Controller PWB (REP 9.3).Replace the Paper Feed Clutch (REP 11.10).Remove the Sheet Feeder Drive Assembly (REP 11.6) for the affected feeder. Check the PaperFeed Rolls for contamination and wear. The Paper Feed Rolls are clean and in good condi-tion.Y NReplace the Paper Feed Rolls (REP 11.11).Check the Paper Feed Assembly for binding, obstructions, or contamination. The feed assem-bly is clean and in good condition.Y NClean, repair, or replace as necessary (REP 11.12).If the problem persists, replace the following in order until the problem is found:• Print Engine Controller PWB (REP 9.3).• Feeder PWB (REP 11.9).• Size PWB (REP 11.19)• Paper Feed Clutch (REP 11.10).manuals4you.commanuals4you.com
