Page: 78Service Guide OL400Chapter 4 Failure & Repair AnalysisRAP 03:Paper Jam AlarmSTARTDoes the paper jam occur when the power is turned ON?NO Go to AYES Is the paper at the resist or exit sensor?YES Remove the paper.NO Will the exit sensor on the engine controller circuit board toggle ON andOFF (check on the engine controller circuit board IC3 pin 3)?YES Check the outlet sensor lever for normal operation.NO Replace the engine controller circuit board.AIs the resist roller rotating?NO Check the planetary gearing of the paper feed assembly (replace paper feedassembly, if necessary).YES Has the paper reached the exit sensor?YES Go to BNO Is the main motor rotating?NO Are the main motor contacts touching the engine controller circuitboard?NO Ensure good contact.YES Replace the engine controller circuit board or the mainmotor.Is the fuser unit rotating?NO Check the gearing.YES Go to B
