Lexmark T642 Service Manual - Page 151

4061-xx0 Remove Paper-Output Bin x displays, POST incomplete, unable to clear the message FRU 1 Dual output bin sensor flag Action Check the flag for correct operation, binding, broken parts, or interference from the sensor cable, If incorrect, repair as necessary. or replace the output expander option. 271.xx 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 output expander option. 271.xx 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 990 Service - Bin x If displayed, replace the output expander option. No indication that bin x is full or no indication that bin x is near full FRU 1 Dual output bin x sensor assembly Output expander control board Action Check for correct installation of the sensor cable at J5 on the output expander control board. If either the Bin Full (F) or Bin Near Full (NF) fail the sensor test then check the voltage at J5-3 and J5-4. The voltage measures approximately +5 V dc. If the voltage is incorrect, replace the output expander option. If correct, replace the sensor assembly. Diagnostic information 2-111