Lexmark MX321 - Page 98

Sensor (duplex) jam at leading edge service check
Action Yes No
Step 1
Make sure that the paper is loaded properly. Use the
recommended paper. See
“Avoiding jams” on page 71.
Does the problem remain?
Go to step 2. The problem is
solved.
Step 2
a Enter the Diagnostics menu, and then navigate to:
Input tray quick print
b Do feed tests from
dierent
trays. Check if the same error
occurs.
Does the same problem remain?
Go to step 3. Perform the
appropriate service
check for the specific
error.
Step 3
a Enter the Diagnostics menu, and then navigate to:
Printer diagnostics and adjustments > Motor tests
b Select the solenoid (Redrive Solenoid), and then touch Start.
Does the solenoid run?
Go to step 6. Go to step 4.
Step 4
Check the solenoid for wear and damage.
Is the solenoid free of wear and damage?
Go to step 6. Go to step 5.
Step 5
Replace the reverse solenoid. See
“Reverse solenoid removal”
on page 216.
Does the problem remain?
Go to step 6. The problem is
solved.
Step 6
a Enter the Diagnostics menu, and then navigate to:
Printer diagnostics and adjustments > Sensor tests
b Find the sensor (Duplex path 1).
Does the sensor status change while toggling the sensor?
Go to step 9. Go to step 7.
Step 7
a Reseat the sensor cable from the controller board.
b Check the sensor and its actuator for improper installation and
damage.
Is the sensor properly installed and free of damage?
Go to step 9. Go to step 8.
7017-2xx, -4xx, -6xx
Diagnostics and troubleshooting
98