Replacing the Y Encoder Sensor Board in your Ri 1000

Symptoms/ When to Change

1. PF motor error message appears

Supplies

1. Y Encoder Sensor Board

2. #1 Phillips Head Screwdriver 

WARNING

Be sure to wear an anti-static grounding strap when handling any circuit board components.

Component Connections

• Y_EMC/CN 804 ↔ SCB J13
• Measure Y position by reading X encoder disk portion

1. Turn off the printer and flip the power switch to the off position
2. Remove the power cord
3. Open the lid of the printer 
4. With a #1 screwdriver, unscrew the (3) screws on the back of the printer securing the top cover
5. With a #1 screwdriver, unscrew the (2) screws in the front of the printer securing the top cover
6. With 1-2 people, lift the top cover off the printer and set to the side
7. With a #1 screwdriver unscrew the (5) screws holding the left side panel in place
8. Remove the left side panel by sliding it from the front side to the back
9. With a #1 screwdriver, unscrew (6) screws holding the back panel in place
10. Slide the back panel out right and then diagonally out
11. Locate the Y gear cover
12. With a #1 screwdriver, remove the (4) screws holding the Y gear cover in place
13. Remove the Y- Gear Cover
14. With a $1 screwdriver remove the (2) screws holding the Y encoder sensor in place
15. Replace the cable from the clamp
16. Disconnect Y_EMC cable from the board
17. Connect Y_EMC cable to the new board 
18. With a #1 screwdriver screw the (2) screws that hold the Y encoder sensor in place and ensure the clamp secures the cable
19. Place the Y Gear Cover back on and with a #1 screwdriver screw in the (4) screws holding the cover in place
20. Slide the back panel and then diagonally in
21. With a #1 screwdriver, screw in the (6) screws holding the back panel in place
22. Attach the left side panel by sliding it from the backside, aligning the power input with the corresponding frame hole
23. Slide the panel into place
24. With a #1 screwdriver, screw in the (5) screws holding the left side panel in place
25. With 1-2 people, lift the top cover onto the printer
26. With a #1 screwdriver, screw in the (2) screws in the front of the printer securing the top cover
27. With a #1 screwdriver, screw in the (3) screws on the back of the printer securing the top cover
28. Plug in the power cord
29. Flip the power switch to the on position and turn on the printer
30. Close the lid of the printer

CAUTION

• Verify that the part was installed correctly:
• PF motor error does not appear
• Perform the table alignment procedure as outlined in the user manual