Diagnostic information 2-41
7525-xxx
Fuser exit sensor service check
Step Questions / actions Yes No
1 Enter Diagnostics Menu (turn the printer off,
press and hold and , turn the printer on,
and then release the buttons when the
installed memory and processor speed
displays).
Perform the Base Sensor Test. See “Base
Sensor Test” on page 3-18.
1. Select Base Sensor Test, and press
Select ().
2. Select Fuser Exit Sensor, and press
Select ().
3. Open and close the front door, and inspect
the fuser exit sensor located on the LVPS
shield.
Is the sensor dislodged or damaged?
Correct the sensor or
replace it. See “” on
page 4-31.
Go to step 2.
2
Rotate the flag (paper diverter) in and out of
the sensor.
Does the display indicate Media Clear and
Media Present with the cycle?
Sensor is good. Go to step 3.
3
Does the flag rotate freely, but returns to block
the sensor?
Go to step 4. Replace the fuser.
See“Fuser assembly
removal” on page 4-28.
4
Is the cable correctly connected to JBIN1 on
the controller board and to the sensor.
is the sensor properly connected?
Go to step 5. Reconnect the cable.
5
Make sure the printer is turned off. Disconnect
the cable at the sensor and at JBIN1 on the
controller board. Turn the printer on and check
the voltage values:
Does the voltage values correct?
Replace the fuser exit
sensor. See “” on
page 4-31.
Replace the controller
board. See “Controller
board removal” on
page 4-18.
JBIN1
Pin Value
4 0 V dc +5V dc during cycle
5 +0 V dc (unblocked), +3.3 V dc
(unblocked)
6 Ground
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