- This procedure is demonstrated on Prestige XL2 and XL3.
- This procedure also applies to Prestige L2 and XL4.
- Locate the blue light on the power supply: Steady blue light indicates normal operation.
- No blue light indicates the power supply may be malfunctioning.
- Blinking blue light indicates an error is detected.
- The blue light blinks only when an error is detected.
- The blue light does not blink simply because a wire is disconnected.
- Use this behavior to isolate which connected printer part is causing the blinking error by testing cable pairs one at a time.
- On Prestige XL3 and XL4, identify the power supplies: Top unit is 36V power supply.
- Middle unit is 24V power supply.
- Bottom unit is 42V power supply.
Initial Test Setup for a Blinking Power Supply
- Turn the printer on.
- Observe which power supply has a blinking blue light.
- For this procedure example, assume the 24V power supply is blinking.
- Take a clear photo of all cables and labels on the power supply.
- Turn the printer off.
- Using a Phillips screwdriver, remove all cables except the three cables at the very bottom.
Screw Terminal Cable Removal and Installation Technique
- To unplug a cable: Rotate the screw counterclockwise to loosen.
- To plug in a cable: Keep the screw loosened.
- Slide the U-shaped connector to the left to remove.
- Slide the U-shaped connector under the screw.
- Rotate the screw clockwise to tighten.
- With all peripheral cables removed (except the bottom three), turn the printer on.
- If the blue light is still blinking: The power supply is malfunctioning.
- If the blue light is steady: The power supply is operating correctly.
- One of the disconnected parts is likely causing the error.
- Turn the printer off.
- Connect one peripheral cable pair to the power supply.
- Each peripheral uses a pair of cables: One red cable and one blue cable.
- Identify matching pairs by cable labels: Example: WK24V+ pairs with WK24V-.
- Turn the printer on and observe the blue light: If steady, the connected part is not the issue.
- Repeat this process for each cable pair until the blinking light returns.
- Once identified, pause on the chart in the video to confirm which cable pair matches which part.
- If blinking, the connected part is the issue.
- After replacing the identified part, turn the printer on.
- Confirm the power supply blue light changes from blinking to steady.
Replace the 36V Power Supply (XL3 / XL4)
- Remove the entire back panel by pulling the prong down to release it.
- Take a clear photo of all cables with labels visible.
- Remove all cables by loosening screw terminals and sliding U-shaped connectors left.
- Remove the bottom left screw.
- Loosen the top right screw.
- Remove the power supply.
- Position the new power supply so the top right prong slides onto the top right screw.
- Tighten the top right screw to hold the power supply.
- Install the bottom left screw.
- Using the reference photo, reconnect all cables: Slide the U-shaped connector under the screw.
- Follow the same steps to replace the 24V and 42V power supplies.
- Open the side panel to access the backside of the control panel board.
- Take a photo of the control panel board and all cable connections.
- Remove four screws at the corners of the board.
- Detach the board.
- Remove all cables.
- Use a precision flathead screwdriver for the six wired screw-terminal connections.
- If needed, take another photo ensuring wire labels are visible.
- Loosen each screw terminal counterclockwise and pull out each wire.
- Install the new control panel board.
- Reconnect all cables using reference photos.
- For the six screw-terminal wires: Tighten screws as hard as possible.
- Mount the board using the four screws from earlier.
- Perform a tug test to confirm secure connection.
- Remove one screw on each side of the ink bay.
- Remove the three front screws.
- Remove the top cover to access the ink alarm board.
- Remove two screws to detach the ink alarm board.
- Since the cables are not labeled: Transfer one cable at a time from the old board to the new board.
- Secure the new ink alarm board using the two screws.
- Reinstall the ink bay cover.
- Secure the cover using five screws.
- On Prestige XL2, two power supplies are stacked: 24V on top.
- Use the following steps for either replacement.
XL2 Power Supply Access and Bracket Removal
- Remove the entire back panel by pulling the prong down to release it.
- Take a clear photo of the cables with labels visible.
- Rotate labels if needed so the writing faces you in the photo.
- Remove all cables by loosening screw terminals and sliding U-shaped connectors left.
- Remove the two screws holding the power supply bracket frame.
- Remove the bracket assembly from the printer.
- Note each power supply is secured to the bracket by four screws: Two on top.
- Remove two top screws securing the 24V power supply to the bracket.
- Remove two bottom screws securing the 24V power supply to the bracket.
- Remove the 24V power supply.
- Position the new 24V power supply onto the bracket.
- Secure it with two screws on top and two screws on bottom.
- Reinstall the bracket assembly into the printer using two screws.
- Reconnect all cables using the reference photo.
- Reinstall the back panel: Insert the bottom pin first.
- Close the back panel.
- Pull the top pin down to position the panel.
- Release the pin to secure.
- From the prior steps, ensure the power supply bracket is removed.
- Remove two top screws and two bottom screws securing the 42V power supply to the bracket.
- Remove the 42V power supply from the bracket.
- Do not lose the two L brackets positioned between the bracket and the power supply.
- Take a clear photo of all cable labels on the 42V power supply.
- Loosen screw terminals and remove all cables.
- Position the new 42V power supply.
- Use an L bracket as a temporary mount to hold the power supply in place: Attach one L bracket to the bottom right of the power supply using a screw.
- Reconnect all cables using the reference photo.
- Remove the temporary L bracket from the printer, then from the power supply.
- Assemble the power supply bracket system: Position one L bracket on the top left of the power supply.
- Secure the assembly with two screws on top and two screws on bottom.
- Reinstall the bracket into the printer using two screws.
- Reconnect the 24V power supply cables using the reference photo.
- Reinstall the back panel: Insert the bottom pin first.
- Close the back panel.
- Secure that L bracket to the back side of the printer.
- Position another L bracket on the bottom right.
- Slide the unit into the bracket assembly.
- Pull the top pin down to position the panel.
- Release the pin to secure.
