1 – 49Chapter 1 TroubleshootingFIP1.29 SENSOR NO PAPERStep Check Yes NoPossible causes:SENSOR NO PAPER (PL5.1.38, PL7.1.38)ACTUATOR NO PAPER (PL5.1.6, PL7.1.14)150 FEEDER ASSY (PL5.1.1)HARNESS ASSY TRAY1 (PL5.1.37)HARNESS ASSY TRAY2 (PL7.1.36)HARNESS ASSY CHUTE (PL12.1.17)HVPS/MCU (PL12.1.19)PLATE ASSY BTM (PL2.1.10, PL4.1.10)LVPS (PL12.1.5)550 FEEDER ASSY (PL7.1.10)1Checking ACTUATOR NO PAPER for shape and oper-ationDoes ACTUATOR NO PAPER operate smoothly?Is the flag between the sensor detecting point whenACTUATOR NO PAPER is low (there is no paper), andout of the detecting point when ACTUATOR NO PAPERis high (there is paper)?Go to step 2. Replace ACTUA-TOR NO PAPER.2Checking PLATE ASSY BTMFit the empty Paper Cassette.Is the flag of ACTUATOR NO PAPER located inbetween sensor detecting point?With tool Go tostep 3. Withouttool Go to step 4.Replace PLATEASSY BTM.(RRP2.5, 4.5)3Checking SENSOR NO PAPER (1)Remove EP CARTRIDGE.Close COVER OPEN (PL1.1.2).Remove Paper Cassette.Put the hand from the tray insertion space, and moveACTUATOR NO PAPER up and down.Does the number increase one by one, as ACTUATORNO PAPER operates?Check using Chapter 2 Diagnostic [Sensor/SwitchCheck].Replace HDVS/MCU.(RRP12.10)Go to step 5.4Checking SENSOR NO PAPER (2)Remove EP CARTRIDGE.Close COVER OPEN (PL1.1.2).Remove Paper Cassette.Put the hand from the tray insertion space, moveACTUATOR NO PAPER up and down.Is each voltage across P/J24-8(+) and P/J24-7(-) andP/J24-3(+) and P/J24-2(-), 0VDC when ACTUATORNO PAPER is moved up, 3.3VDC when down?Replace HDVS/MCU.(RRP12.10)Go to step 5.5Checking the power to SENSOR NO PAPERRemove EP CARTRIDGE.Is each voltage across P/J24-6(+) and P/J24-7(-) andP/J24-1(+) and P/J24-2(-) on HVPS/MCU, 3.3 VDC?Go to step 6. Go to step 8.
