Lexmark X644E Service Manual - Page 151

7002-xxx FRU 5 ADF exit sensor-electrical checks Action Turn the power off, and reconnect CN9 to the motor driver card. Measure the voltages in the table below with the sensor in normal operation (sensor closed) and with the sensor open (sensor flag activated). ADF exit sensor-interrupter type (normally closed) Connector CN9 (motor driver card) Pin number Sensor closed Sensor open CN9-Pin 1 0 V dc CN9-Pin 2 +1.16 V dc CN9-Pin 3 +5.0 V dc Note: All voltages are approximate values. 0 V dc +1.16 V dc +0.15 V dc If the voltages are incorrect, replace the ADF exit sensor. If this does not fix the problem, replace the complete ADF assembly. See "ADF complete assembly removal" on page 4-15. Note: Whenever the complete ADF assembly is replaced, it is necessary to perform scanner registration. See "Scanner registration" on page 4-4. 294.03 Error code service check ADF exit jam sensor on. This error generally indicates that the ADF exit sensor (A) is defective, exit sensor cable is open, or the voltages on the motor driver card at pins 1, 2, or 3 are incorrect. A Note: Before starting this service check, make sure the sensor cable is installed correctly. FRU 1 ADF-jammed media Action Check for any signs of media or other debris that might be present in the ADF assembly around the exit sensor flag. Remove any media or debris. If nothing is found, go to step 2. Diagnostic information 2-113