1 - 79Chapter 1 TroubleshootingFIP2.46 SENSOR FULL STACK (PL10.1.26)Step Check Yes NoPossible causative parts:SENSOR FULL STACK (PL10.1.26)ACTUATOR FULL STACK (PL10.1.10)HARNESS ASSY EXIT SNR (PL10.1.27)HVPS/MCU (PL12.1.19)1Checking ACTUATOR FULL STACKOpen COVER ASSY REAR 500.Move ACTUATOR FULL STACK with a finger. DoesACTUATOR FULL STACK operate smoothly? Does theflag go into the sensor detecting point when there is lowpaper, and out of the detecting point when full?With toolGo to step 2.Without toolGo to step 3.ReplaceACTUATORFULL STACK.2Checking SENSOR FULL STACK (1)Remove EP CARTRIDGE.Close COVER ASSY REAR 500.Move ACTUATOR FULL STACK up and down. Does thenumber increase one by one, every time ACTUATORFULL STACK operates?Checks by Chapter 2 Diagnostic [Sensor/Switch Check].ReplaceHVPS/MCU.(RRP12.10)Go to step 3.3Checking HARNESS ASSY EXIT SNR for continuityRemove 500 EXIT ASSY (PL10.1.2) (RRP10.2)Remove HARNESS ASSY EXIT SNR.Are the following continuous normally?J29-1 <=> J290-3J29-2 <=> J290-2J29-3 <=> J290-1Go to step 4.ReplaceHARNESS ASSYEXIT SNR.4Checking SENSOR FULL STACK (2)Replace SENSOR FULL STACK. (RRP10.7)Is the problem cleared?End of workReplaceHVPS/MCU.(RRP12.10)
