Lexmark MX912dxe - Page 80

Duplex jam service check
Action Yes No
Step 1
Enter the Diagnostics menu, and then navigate to:
EVENT LOG > Display Log
Do most of the recent error codes end with a 1? (Example: 241.11, 200.91)
Go to step 2. Go to step 5.
Step 2
Make sure that the duplex paper path, including the sensors, are free of
debris or dust.
Does the problem remain?
Go to step 3. The problem is solved.
Step 3
Check the duplex pass through 1 and duplex pass through 2 sensor
actuator for damage, and replace if necessary. See
“Duplex pass through
1 actuator removal” on page 290.
Does the problem remain?
Go to step 4. The problem is solved.
Step 4
Check the sensor (duplex pass through 1) and sensor (duplex pass through
2) for damage, and replace if necessary. See
“Sensor (duplex pass through
1) removal” on page 289 and “Sensor (duplex pass through 2) removal”
on page 318.
Does the problem remain?
Go to step 5. The problem is solved.
Step 5
Enter the Diagnostics menu, and then navigate to:
INPUT TRAY TESTS > Feed Tests > Tray 1
Does the leading edge of the paper reach the sensor (duplex pass through
1)?
Go to step 6. Go to step 7.
Step 6
Does the leading edge of the paper reach the sensor (registration)?
Go to step 14. Go to step 13.
Step 7
a Check the duplex transport belt for proper tension, and adjust if
necessary.
b Check the duplex transport gear and belt for wear or damage, and
replace if necessary. See
“Duplex transport belt removal” on
page 292 and “Duplex transport gears removal” on page 292.
Does the problem remain?
Go to step 8. The problem is solved.
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Diagnostic information
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