Actions Yes No
Step 3
Turn the printer off, and then remove the rear shield. See “Rear cover
removal” on page 221.
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 260.
Replace the controller
board. See “Controller
board removal” on
page 239.
7527
Diagnostic information
49
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