Lexmark C920 - Sensor Controller Error; Black Gear Sensor Error; Yellow Gear Sensor Error

Diagnostic information 2-23
5056-XXX
982 - Sensor Controller Error
983 - Black Gear Sensor Error
984 - Yellow Gear Sensor Error
982 Service
Sensor Control
Step Questions/actions Yes No
1 Turn the printer off, and wait 30 seconds. Turn the
printer on.
Is error 982 displayed?
Replace the
printer controller
board.
Problem solved.
983 Service
Gear Sensor
Step Questions/actions Yes No
1 Is connector CN20 on the printer controller board
connected properly?
Go to step 2. Plug the
connector in
securely.
2
Check the cable running to CN20 for damage.
Is the cable damaged?
Replace the
cable.
Go to step 3.
3
Clean the gear sensor.
Does this correct the problem?
Problem solved. Go to step 4.
4
Replace the sensor card.
Did this resolve the problem?
Problem solved. Replace the drive
unit.
Step Questions/actions Yes No
1 Is connector CN20 on the printer controller board
connected properly?
Go to step 2. Plug the
connector in
securely.
2
Check the cable running to CN20 for damage.
Is the cable damaged?
Replace the
cable.
Go to step 3.
3
Clean the gear sensor.
Does this correct the problem?
Problem solved. Go to step 4.
4
Replace the sensor card.
Did this resolve the problem?
Problem solved. Replace the drive
unit.