Actions Yes No
Step 3
Turn the printer off, and then remove the rear cover. See
“Rear cover
removal” on page 290.
Is the cable correctly connected to JBIN1 on the controller board and to
the sensor?
Go to step 5. Reconnect the cable.
Step 4
Turn the printer on, and check the values at JBIN1:
Pin 4: 0 V dc (+5 V dc during cycle)
Pin 5: +0 V dc (unblocked), +3.3 V dc (blocked)
Pin 6: Ground
Are the values correct?
Replace the fuser exit
sensor. See
“Fuser exit
sensor removal” on
page 228.
Replace the controller
board. See
“Controller
board removal” on
page 291.
5027
Diagnostic information
56
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