How to fix it

#1 Reinstall the ink module

1. Detach the module and reinstall it to ensure proper installation. Press it down until there's a click sound (refer to the image below).
   
2. Secure the module in place by fastening the locking clamp (refer to the image below).
   
3. If this does not resolve the issue, proceed to the next step.

#2 Conduct a cross-test with another processing module

1. Remove the currently installed ink module from your M1 Ultra.
2. Install an alternate processing module from your M1 Ultra package.
3. Test the alternate processing module with a process project.
4. Evaluate the results:
   1. If the alternate processing module operates properly, please contact xTool Customer Service at support@xtool.com for further assistance.
   2. If the alternate module does not operate correctly, this rules in a breakdown of the Z-axis control board. Continue to the next step.

#3 Replace the Z-axis control board

1. Please follow the video tutorial below to replace the broken-down Z-axis control board (refer to the image below).
   
2. For a Z-axis control board replacement, please contact our xTool Customer Service at support@xtool.com.
3. Include the device serial number (SN) on the back of the machine, a video demonstrating the issue, a list of the troubleshooting results you have already attempted, and your delivery information to help us determine the most appropriate course of action promptly.

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