This guide explains how to troubleshoot situations where a laser machine becomes unresponsive or displays an “X- Not Buffer” warning after transferring a bitmap image. It covers common causes such as oversized bitmap data, excessive image resolution, controller memory limitations, and incorrect LightBurn settings, along with practical solutions to restore normal processing.
After transferring a bitmap image to the machine and pressing "Start" on the control panel, the machine does not respond, or it displays an X- Not Buffer warning.
Shrinking the physical dimensions of the bitmap inside the LightBurn canvas does not resolve the issue.
Select a basic, low-resolution bitmap image, transfer it to the machine, and attempt to run the job.
If the simple image works perfectly, it confirms that your original file's resolution or data size is the root cause of the issue.
Why shrinking the image size directly in LightBurn doesn't work？
Even though the image appears visually smaller in Lightburn, its underlying resolution and pixel density remain unchanged. Resizing it only in LightBurn means the raw data packet sent to the machine is still massive.
You must use external image editing software (such as Photoshop) to downsample the image, lower its overall resolution, and then re-import it into LightBurn.
A cluttered motherboard storage can bottleneck new incoming data.
Press the File button on the physical control panel. If you see a long list of previously saved files, delete some of the older projects to free up cache space, then try transferring your file again.
Important Reminder:
If these steps do not resolve the issue, please click this link to submit a support ticket: https://zohodesk.1laser.com/portal/en/newticket. A technician will then be able to conduct a more in-depth diagnosis and resolve your problem.