01/022-6 8825/8830 PrinterLL-41/LL-45 Fuser Warm-up Fault RAP, LL-42 Ther-Status Indicator RAPsConnect the (+) meter lead to A9P1-2 and leave the (-) meter lead connected toA1Q1-MTI. Pulses are present.Y NRepair the wires.Check the wiring between the Heat Rod Control PWB (A9) and the Fuser Triac (Q1).If OK, replace the Heat Rod Control PWB.Switch off the printer and disconnect the power cord. Replace the Fuser Triac, A1Q1, PL1.2A. Then go to OF-3 Fuser Ballast RAP to check that the ballast circuit is operating cor-rectly.The Thermistor Pad on the Thermistor Pad Assembly touches the Fuser Roll.Y NReplace the Thermistor Pad Assembly, PL 10.4.The Thermistor Pad is free of contamination.Y NClean the Thermistor Pad with a clean cloth.Check the wires between the Fuser Thermistor, RT1, and the Main PWB, A1, for continuity.The wires have continuity.Y NRepair the wires.Replace the Thermistor Pad Assembly, PL 10.4.LL-42 Thermal Control RAPNOTE: Go to BSD 10.1 while using this RAP.This RAP is used to locate certain problems in the thermal control circuitry in the Fuser area.WARNINGDangerous VoltageInitial ActionsSwitch off, then switch on the printer. If the problem still exists, perform the procedure below.ProcedureSwitch off the printer and disconnect the Power Cord. Disconnect the orange wire from theFuser Triac, A1Q1-G. Reconnect the Power Cord and switch on the printer. Wait 10 seconds.After 5 seconds, the Fuser Heat Rod is off.Y NReplace the Fuser Triac, ATQ1, PL 1.2A. Switch off the printer. Disconnect A23P5 fromthe Thermistor Pad Assembly J5. Set the meter to read 100ohms. Connect the (+) meterlead to J5-1. Connect the (-) meter lead to J5-2.The resistance is greater than 100 ohms.Y NReplace the Thermistor Pad Assembly, PL 10.4.Check the wiring between Fuser Thermistor, RT1, and the Main PWB, A2. The wires havecontinuity.Y NRepair the wires.Replace the Main PWB, A2, PL 1.1A.A C D
