Lexmark X940e Owners Manual
Have a look at the manual Lexmark X940e Owners Manual online for free. It’s possible to download the document as PDF or print. UserManuals.tech offer 166 Lexmark manuals and user’s guides for free. Share the user manual or guide on Facebook, Twitter or Google+.
Repair information4-149 7510 Go Back Previous Next ADF feed/pick roll assembly removal Warning: Do not touch the rubber surface of the feed roll or the pick roll. 1. Turn the machine off. Warning: To reduce the chance of pick roll position errors and mechanical misalignments, ensure that the machine is turned off when replacing the ADF feed/pick roll assembly. 2. Open the ADF left cover assembly. 3. Remove the ADF left cover media guide. See “ADF left cover media guide removal” on page 4-151. Note: Rotate the rear most white gear of the pick roll position motor assembly until the pick roll is completely lowered and the sector gear is completely disengaged. 4. Release the two springs from the ADF left cover assembly. 5. Remove the plastic clip (A). 6. Move the front bushing (B) frontward in the direction of the arrow to remove it from the front bracket (C). 7. Gently pull the front end of the ADF feed/pick roll assembly away from the ADF left cover assembly. 8. Move the rear bushing (D) rearward in the arrow direction to remove it from the rear bracket (E). 9. Gently remove the ADF feed/pick roll assembly (F) from the left cover assembly. Replacement note: Before reinstalling the ADF feed/pick roll assembly (F), ensure that the document set stops are positioned correctly and the two set gates are positioned as shown in the diagram, or the ADF will malfunction and jam. Replacement note: Once the ADF feed/pick roll assembly is secured and the plastic clip is installed, rotate the rear most white gear of the pick roll position motor assembly until the pick roll has completely raised. Replacement note: Ensure that the two springs are positioned and installed properly, or the ADF will malfunction and jam. Rear white gear Sector gear
4-150Service Manual 7510 Go Back Previous Next Document set actuator removal 1. Open the ADF left cover assembly. 2. Remove the ADF left cover media guide. See “ADF left cover media guide removal” on page 4-151. 3. Gently pry the document set actuator (A) from the ADF left cover assembly. 4. Remove the document set actuator (A). C B AE D F Set gate Plate AA
Repair information4-151 7510 Go Back Previous Next ADF left cover media guide removal 1. Open the ADF left cover assembly. 2. Remove the screw securing the ADF left cover media guide (A). 3. Lift the ADF left cover media guide (A) upward, then remove the two bosses from the slot, and remove the two tabs from the holes. 4. Remove the ADF left cover media guide (A). Replacement note: Before reinstalling the ADF left cover media guide (A), ensure that the two bosses and two tabs are correctly installed, or jamming will occur. Pick roll position motor assembly removal 1. Open the ADF left cover assembly. 2. Remove the ADF left cover media guide. See “ADF left cover media guide removal” on page 4-151. 3. Remove the document set actuator. See “Document set actuator removal” on page 4-150. 4. Remove the screw from the green ground wire (A). 5. Remove the screw securing the grounding plate (B). 6. Remove the grounding plate (B). 7. Remove the two screws securing the harness guide (C). 8. Remove the harness guide (C). 9. Disconnect the connector from the pick roll position motor assembly (D). 10. Remove the screw securing the pick roll position motor assembly (D). 11. Remove the pick roll position motor assembly (D). A Boss TabsBoss
4-152Service Manual 7510 Go Back Previous Next 12. Remove the harness from the harness guide (C). Switch (ADF left cover interlock) removal 1. Open the ADF left cover assembly. 2. Remove the ADF front cover assembly. See “ADF front cover assembly removal” on page 4-138. 3. Remove the screw and washer securing the switch (ADF left cover interlock) (A). 4. Disconnect the two connections to the switch (ADF left cover interlock) (A) with needle nose pliers. 5. Remove the switch (ADF left cover interlock). B A C D Connector A Screw Connections Front
Repair information4-153 7510 Go Back Previous Next Sensor (ADF width APS 1) removal 1. Open the ADF left cover assembly. 2. Lift the separation roll guide assembly to its uppermost position. 3. Remove the actuator/media guide assembly. See “Actuator/media guide assembly removal” on page 4-159. 4. Remove the two screws securing the sensor mount (A) to the ADF. 5. Slide the sensor mount (A) from the underside of the ADF transport roll (B), and move it to the position in which the required sensor is easily removed. 6. Release the hook securing the sensor (ADF width APS 1) (C) to the sensor mount (A). 7. Disconnect the connection from sensor (ADF width APS 1) (C). 8. Remove the sensor (ADF width APS 1) (C). The APS, pre-registration, and inverter sensors are removed in the same manner. Release the hook, disconnect the connector, and remove the sensor. AB C A
4-154Service Manual 7510 Go Back Previous Next Sensor (ADF width APS 2) removal 1. Open the ADF left cover assembly. 2. Lift the separation roll guide assembly to its uppermost position. 3. Remove the actuator/media guide assembly. See “Actuator/media guide assembly removal” on page 4-159. 4. Remove the two screws securing the sensor mount (A) to the ADF. 5. Slide the sensor mount (A) from the underside of the ADF transport roll (B), and move it to the position in which the required sensor is easily removed. 6. Release the hook securing the sensor (ADF width APS 2) (C) to the sensor mount (A). 7. Disconnect the connection from sensor (ADF width APS 2) (C). 8. Remove the sensor (ADF width APS 2) (C). The APS, pre-registration, and inverter sensors are removed in the same manner. Release the hook, disconnect the connector, and remove the sensor. BA C A
Repair information4-155 7510 Go Back Previous Next Sensor (ADF width APS 3) removal 1. Open the ADF left cover assembly. 2. Lift the separation roll guide assembly to its uppermost position. 3. Remove the actuator/media guide assembly. See “Actuator/media guide assembly removal” on page 4-159. 4. Remove the two screws securing the sensor mount (A) to the ADF. 5. Slide the sensor mount (A) from the under of the ADF transport roll (B), and move it to the position in which the required sensor is easily removed. 6. Release the hook securing the sensor (ADF width APS 3) (C) to the sensor mount (A). 7. Disconnect the connection from sensor (ADF width APS 3) (C). 8. Remove the sensor (ADF width APS 3) (C). The APS, pre-registration, and inverter sensors are removed in the same manner. Release the hook, disconnect the connector, and remove the sensor. BA A C
4-156Service Manual 7510 Go Back Previous Next Sensor (ADF registration) removal 1. Open the ADF left cover assembly. 2. Lift the separation roll guide assembly to its uppermost position. 3. Remove the actuator/media guide assembly. See “Actuator/media guide assembly removal” on page 4-159. 4. Remove the two screws securing the sensor mount (A) to the ADF. 5. Slide the sensor mount (A) from the underside of the ADF transport roll (B), and move it to the position in which the required sensor is easily removed. 6. Remove the screw securing the ADF registration sensor. 7. Disconnect the connector from the sensor (ADF registration). 8. Remove the sensor (ADF registration) (C). The APS, pre-registration, and inverter sensors are removed in the same manner. Release the hook, disconnect the connector, and remove the sensor. BA C A
Repair information4-157 7510 Go Back Previous Next Sensor (ADF pre-registration) removal 1. Open the ADF left cover assembly. 2. Lift the separation roll guide assembly to its uppermost position. 3. Remove the actuator/media guide assembly. See “Actuator/media guide assembly removal” on page 4-159. 4. Remove the two screws securing the sensor mount (A) to the ADF. 5. Slide the sensor mount (A) from the underside of the ADF transport roll (B), and move it to the position in which the required sensor is easily removed. 6. Release the hooks securing the sensor (ADF pre-registration) (C) to the sensor mount (A). 7. Disconnect the connector from the sensor (ADF pre-registration) (C). 8. Remove the sensor (ADF pre-registration) (C). The APS, pre-registration, and inverter sensors are removed in the same manner. Release the hook, disconnect the connector, and remove the sensor. BA A C
4-158Service Manual 7510 Go Back Previous Next Sensor (ADF inverter) removal 1. Open the ADF left cover assembly. 2. Lift the separation roll guide assembly to its uppermost position. 3. Remove the actuator/media guide assembly. See “Actuator/media guide assembly removal” on page 4-159. 4. Remove the two screws securing the sensor mount (A) to the ADF. 5. Slide the sensor mount (A) from the underside of the ADF transport roll (B), and move it to the position in which the required sensor is easily removed. 6. Release the hooks securing the sensor (ADF inverter) (C) to the sensor mount (A). 7. Disconnect the connector from the sensor (ADF inverter) (C). 8. Remove the sensor (ADF inverter). The APS, pre-registration, and inverter sensors are removed in the same manner. Release the hook, disconnect the connector, and remove the sensor. AC AB