¶ Fault Symptom:
After inserting a USB drive into the printer, clicking the Print option does not display any files.
¶ Possible Causes:
- Using an incompatible USB drive
- USB drive is damaged
- Faulty USB port on the mainboard
¶ Tools Required for Troubleshooting:
A USB drive formatted as FAT32 with 4096 bytes allocation unit size, and capacity less than 32GB.
¶ Troubleshooting Steps:
- Test whether the USB drive is working properly Please insert the USB drive into your computer using a card reader or directly via USB port and check if the computer can read it. If the computer cannot read the USB drive either, the USB drive needs to be replaced.
The Neptune 4 series printer requires a USB drive formatted as FAT32 with 4096 bytes allocation unit size and with a capacity of less than 32GB.
- If the USB drive can be read by the computer, please check whether its format is correct. Try reformatting the USB drive.
How to format a USB drive on Windows:
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How to format a USB drive on Mac:
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- Test whether the mainboard USB port is functioning normally a. Download the USB test file (Buddha.gcode) from our official website and copy it to another USB drive.
Link: https://www.elegoo.com/?srsltid=AfmBOoqnpMhmap91wH3T2jATwdLYj3wvgbDxmJI2MGtYfowKTarlCjll
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b. Insert the USB drive into the printer’s USB port.
c. Access the Print menu on the touchscreen and check whether the file can be displayed.
- If the USB drive is correctly formatted but the test file still does not appear, this indicates a fault with the mainboard USB port. In this case, the mainboard needs to be replaced.