02/20002-43DocuPrint N2025/N2825 RAP 43, RAP 44Status Indicator Repair Analysis ProceduresInitial IssueCheck the wiring connections and continuity between the charge contact on the RightSide Guide and P186 on the HVPS. Repair or replace as necessary. If wiring is ok,replace the HVPS (REP 8.2).Scroll to Charge Roll DC. Measure the voltage between the Right Side Guide Charge Terminaland frame ground, press Enter. The reading is 485 VDC.Y NReplace the HVPS (REP 8.2).Scroll to Dev Bias AC. Measure the voltage between the Right Side Guide Developer Bias Ter-minal (connector nearest the back of the machine) and frame ground, press Enter. The volt-age reading is 620 VAC.Y NReplace the HVPS PWB Assembly (REP 8.2).Remove the Right Print Cartridge Guide Assembly (REP 7.2). Remove the screws that securethe Developer Wire Assembly (PL 8.1) and P/J186 of the Xero Wire Assembly (PL 8.1). Dis-connect P/J187 and P/J186 from the HVPS Assembly. Check the continuity between both endsof the Developer Wire Assembly and Xero Wire Assembly. There is continuity respectivelythrough the Developer Wire Assembly and Xero Wire Assembly.Y NReplace the Developer Wire Assembly and/or Xero Wire Assembly (PL 8.1).Replace the Print Engine Controller PWB (REP 8.5). The problem still appears.Y NProblem solved.Replace the HVPS PWB Assembly (REP 8.2).RAP 44 Electrical NoiseProcedureCheck if there is other electrical equipment, such as electrical generators, radio transmitters, ordevices using electrical motors, within ten feet of the printer. Shut off the other electrical equip-ment, or relocate the printer at least twenty feet away from other devices. The ElectricalNoise problem is still present.Y NProblem solved.Check the AC wall outlet and power cord (see RAP 1). The AC wall outlet is correctly wiredand grounded.Y NInform the customer of insufficient voltage or improper wiring. A licensed electrician mustcorrect the wiring.Open the Top Cover. Remove the Print Cartridge. Inspect all contacts on the Right Print Car-tridge Guide Assembly and the terminals on the Print Cartridge. The terminals are in goodcondition and contacting properly when the cartridge is installed.Y NReplace the Right Print Cartridge Guide Assembly (REP 7.2) or the Print Cartridge (PL8.1) as necessary.Remove the Lower Rear Cover (REP 1.7). Inspect the grounding screw for the cable connectedto the Main Power Switch. The cable is grounded properly.Y NAttach the grounding screw properly.Replace the Print Cartridge (PL 8.1). The Electrical Noise problem is still present.Y NProblem solved.Remove the Print Cartridge. Remove the Right Print Cartridge Guide Assembly (REP 7.2).Inspect the Seal Guide on the rear end of the Right Print Cartridge Guide Assembly. The SealGuide is intact, free of contamination, obstructions, and deformities.Y NClean the Seal Guide or replace the Right Print Cartridge Guide Assembly (REP 7.2).Remove the Paper Transport Assembly (REP 4.1). Check the continuity of all the wires in thePaper Transport Assembly. There is continuity on all the wires.Y NReplace the Paper Transport Assembly (REP 4.1).Inspect the Developer Wire Assembly. The wires are connected properly.Y NConnect the wires properly.Inspect the cables of P174-1 and P174-4 and the right end of the Heater Rod. The cables areattached properly.Y NAttach the cables properly or replace the Fuser Assembly (REP 5.1).A BA
