Fuser Exit Sensor Service Check - Lexmark X543 Service Manual

Fuser exit sensor service check

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