Fip Fuser Exit Sensor is Defective

Step

Check point

Remedy

Yes

No

1

Perform the preliminary inspection. Parts to inspect:

FUSER EXIT SENSOR, MAIN HARNESS ASSY, FUSER HARNESS ASSY, MCU PWB

Replace/reinstall the defective part(s).

Go to Step 2.

2

Check: Power supply to the FUSER EXIT SENSOR

• Is the voltage level correct at the pins below?

Go to Step 3.

Go to FIP-2.1 "LVPS 5VDC is Defective".

- P19-12PIN<=>P19-13PIN: 5VDC

Check:

S

Power supply to the FUSER EXIT detection signal

Is the voltage level correct at the pins below? - P19-13PIN<=>P19-14PIN: 5VDC

Go to Step 4.

Replace the MCU PWB.

Check: FUSER EXIT detection signal

• Is the voltage level correct depending on the conditions

- Penetrated condition (paper is set.): 0VDC

- Blocked condition (no paper is set.): 5VDC

Replace the MCU PWB

Go to Step 5.

Check: MAIN HARNESS electrical continuity

S

• Does the MAIN HARNESS have proper continuity at the pins below? - J75<=>J72

Go to Step 6.

Replace the HARNESS.

Check: FUSER HARNESS ASSY

6

• Does the FUSER HARNESS ASSY have proper continuity at the pins below? - J71<=>J72

Go to Step 7.

Replace the FUSER HARNESS ASSY.

Check: MAIN HARNESS ASSY electrical continuity

7

• Does the MAIN HARNESS ASSY have proper continuity at the pins below? - P71<=>J19

Replace the FUSER EXIT SENSOR.

Replace the MAIN HARNESS ASSY.

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