Xerox M20 - WorkCentre B/W Laser, Service Manual

Page: 52 / 314

December 2006
2-6 WorkCentre M20, 4118, FaxCentre 2218 Family
5.2
Status Indicator RAPs
• Between the PBA SUB REGI and CN5 on the PBA SUB - sensor IF.
• Between the PBA SUB exit open and CN6 on the PBA SUB - sensor IF.
• Between CN1 on PBA SUB - sensor IF and CN2 on the PBA SUB - DADF.
8. Install new components as necessary:
• PBA SUB - DADF, PL 5.11 Item 19.
• ELA HOU - DADF SUB, PL 5.10 Item 31.
4118 Checkout
Refer to Wiring Diagram 12. Perform the following:
1. Open the ADF and clear the jam.
2. Check the document path for damage or obstructions.
3. Ensure the customer is not attempting to feed documents that are outside specification.
Refer to GP 21 DADF/ADF Document Feeding Specifications.
4. Clean the MEA unit - pickup, PL 5.24 Item 4 and RMO ADF rubber, PL 5.24 Item 7.
5. Check that the following actuators move freely and are not damaged:
• PMO - actuator sensor detect, PL 5.22 Item 18.
• PMO - actuator sensor present, PL 5.22 Item 23.
• PMO - actuator sensor registration, PL 5.22 Item 3.
6. Enter GP 3 Service Mode Entry. Scroll to System Admin Tools/Maintenance/ADF Test.
Use the sensor test to check the following sensors:
• Present sensor. This is the PBA SUB - ADF present sensor, PL 5.22 Item 16.
• Detect sensor. This is the PBA SUB - ADF detect sensor, PL 5.22 Item 17.
• Regi sensor.
NOTE: The registration sensor is mounted on the PBA SUB-ADF, PL 5.22 Item 4.
7. Remove the PMO cover rear, PL 5.20 Item 21. Use the Motor forward test to run the ADF
motor step, PL 5.24 Item 15. Make sure that the ADF motor step runs and drives the fol-
lowing components:
• MEA unit - pickup, PL 5.24 Item 4.
• MEC - roller driver, PL 5.22 Item 22.
• MEC - roller exit, PL 5.22 Item 9.
Install new parts as necessary, PL 5.22 and PL 5.24.
8. Install new components as necessary:
• PBA Sub - ADF, PL 5.22 Item 4.
• ELA HOU - ADF Motor Assembly, PL 5.24 Item 11.
• ELA HOU - ADF lower assembly, PL 5.22 Item 1.