Lexmark 4227-100, Service Manual

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4227-100
Tractor 2 Service Check
The Tractor 2 sensor opens during installation, when its actuator
touches the printer cover. The home sensor detects the position of
the slider.
•
When Tractor 2 is selected, the motor-driven Tractor 2 slider
pushes the printer sub slider cam lever to engage the printer
gear train which drives the Tractor 2 tractors.
•
When the Tractor 2 is deselected, the motor retracts the slider,
disengaging the Tractor 2 gear drive and reengaging the printer
tractors.
63D Tractor2 HP Error
The Tractor 2 home sensor was never initialized after turning the printer off
and then on, or made at the wrong time.
(The same error indication is used for carrier home failure.)
FRU Action
1 Tractor 2
Home Sensor Remove the Tractor 2 and turn the printer off
and then on again to determine if the fault is in
the printer or Tractor 2.
If the gear teeth chatter just before the error is
displayed, replace the home sensor.