Lexmark 2380 Service Manual - Page 55
POST Service Check, Diagnostic Information 2-31
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FRU 2 Pull Tractor Sensor Action A failed pull tractor sensor can cause Alt + Park/Load not to function. With the tractor in the push position, press Alt+Park/ Load several times while alternately holding down and releasing the left pull tractor actuator. The paper should not park or load when the pull tractor actuator is held down. If it does, go to the "Pull Tractor Sensor Service Check" on page 2-38. POST Service Check FRU Action 1 Power LED If the power LED is not on, go to the "Power Service Check" on page 2-32. 2 Cables A faulty interface cable can cause POST errors. Disconnect the interface cable from the printer and turn the printer off and then on. Check the connections of the short flexible cable and the power cable to the main logic board and sub logic board. Check the condition and continuity of the operator panel cable. 3 Operator Panel If no problem is found, the problem may be in either the operator panel or the main logic board. Replace the operator panel and retest the printer. 4 Main Logic Board Replace the main logic board if necessary. Reset the bidirectional print adjustment; refer to "Bidirectional Print Adjustment" on page 4-5. Diagnostic Information 2-31