Lexmark MX912dxe - Page 105

Action Yes No
Step 4
a Make sure that the following sensors are properly installed:
• Sensor (3000-sheet tray elevator level)
• Sensor (3000-sheet tray empty)
• Sensor (3000-sheet tray feed)
b Make sure that the sensors are free of debris or dust.
c Reseat the cable on the sensors and the cable CN5 on the controller
board.
d Check the sensors for damage.
Are they free of damage?
Go to step 5. Go to step 6.
Step 5
Enter the Diagnostics menu, and then navigate to:
SENSOR TESTS > 3000‑Sheet Tray Sensor Tests > Tray upper limit or
Tray paper feed
Does the sensor status change while toggling the sensor?
Go to step 7. Go to step 6.
Step 6
Replace the sensor. See
“Sensor (3000-sheet tray elevator level)
removal” on page 511 or “Sensor (3000-sheet tray feed) removal” on
page 512.
Does the problem remain?
Go to step 7. The problem is solved.
Step 7
Test the motor (3000-sheet tray feed) and motor (3000-sheet tray
transport).
Enter the Diagnostics menu, and then navigate to:
MOTOR TESTS > 3000-Sheet Tray Motor Tests > Tray feed or Tray
transport
Do the motors run?
Go to step 9. Go to step 8.
Step 8
a Reseat the cable on the motor and the cable CN4 on the controller
board.
b Check the motors and cables for damage, and replace if necessary.
See
“3000-sheet tray feed and transport motors removal” on
page 519.
Does the problem remain?
Go to step 9. The problem is solved.
Step 9
Check the belts and gears connected to the motors for wear or damage,
and replace if necessary.
Does the problem remain?
Go to step 10. The problem is solved.
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Diagnostic information
105