Sensor (duplex path) early arriving jam service check
Action Yes No
Step 1
Check the duplex path for jammed media and obstructions.
Is the duplex path free from jammed media and obstructions?
Go to step 2. Remove any jammed
media or obstructions.
Step 2
Check the sensor (duplex path) for proper operation.
a Enter the diagnostic mode.
b Select duplex tests.
c Select sensor test.
d Observe the line item sensor.
Does the display on the control panel change every time the sensing area
of the above sensor is interrupted or blocked?
Go to step 4. Go to step 3.
Step 3
Check the above sensor for proper connection.
Is the above sensor connected properly?
Replace the sensor
(duplex path). See
“Sensor (duplex path)
removal” on page
378.
Reseat the connection.
Step 4
Perform a print test.
Does the problem remain?
Contact the next
highest level of
technical support.
Problem solved.
Sensor (duplex path) never‑ or late‑arriving jam service check
Action Yes No
Step 1
Check the fuser access door area for media jams and obstructions.
Is the fuser access door area free from jammed media and obstructions?
Go to step 2. Remove any jammed
media or obstructions.
Step 2
Check the fuser access door area and the attached diverter for damage.
Is the fuser access door and diverter free from damage?
Go to step 3. Replace the fuser
access door. See “Fuser
access door removal”
on page 349.
Step 3
Check the duplex path for jammed media and obstructions.
Is the duplex path free from jammed media and obstructions?
Go to step 4. Remove any jammed
media or obstructions.
7463
Diagnostic information
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