Lexmark T620 Service Manual - Page 122

4069-5XX/7XX Remove Paper - Output Bin X is displayed, POST incomplete, unable to clear the message. FRU Action 1 Dual Output Bin Sensor Flag Check the flag for correct operation, binding, broken parts or interference from the sensor cable, If incorrect, repair as necessary. 271 Paper Jam - Check Bin X, POST incomplete FRU 1 Pass Thru Sensor and Flag Assembly Control Board Action Check the sensor flag for proper operation. If correct, check to make sure the pass thru sensor cable is correctly connected to J3 on the control board. Disconnect the pass thru sensor cable from J3 on the control board and check the voltage at J3-3. The voltage measures approximately +5 V dc. If incorrect, replace the control board. If correct, check the voltage at J3-2. The voltage measures approximately 0 V dc. If incorrect, replace the sensor assembly. If this does not fix the problem, replace the control board. 271 Paper Jam - Check Bin X, POST complete, first sheet of paper feeds into Output Bin X. Note: Before performing the following checks run the Output Bin X Sensor Test and check for the failing sensor. Sensor Test: NF = Near Full (Upper part of sensor assembly) F = Full (Lower part of sensor assembly) P = Pass Thru Sensor 2-94 Service Manual