Lexmark 25XX-100 Service Manual page 58

25XX-100, -110
3 beeps and Tractor 2 LED blinks 3 times
Tractor 2 is selected from the operator panel, but the printer does not detect
Tractor 2 or detects that the Tractor 2 mechanism is not installed.
FRU
1 Tractor 2
board/cable
assembly
2 Logic board
2-38
Service Manual
Action
Check the Tractor 2 in-place sensor or the
cable connection.
The in-place sensor actuator extends through
the Tractor 2 cover and rests on the printer
cover when Tractor 2 is installed.
Remove the Tractor 2 cover, and be sure the
in-place sensor opens when the Tractor 2 is
installed. The voltage at Tractor 2 CN1-13
should be +5 V dc with the sensor open and 0
when it is closed.
Replace the Tractor 2 board/cable assembly if
the sensor signal is wrong.
For information on the Tractor 2 cable
connectors, see "Tractor 2 cable
connectors" on page
Check the cable connection from Tractor 2 to
the printer.
If possible, try the Tractor 2 with another printer
to determine if the problem is the Tractor 2
board/cable assembly or the printer logic
board.
5-27.