¶ 💡 Compatibility
This article applies to the following model and module. Please take note when referencing:
- Model: U1
¶ 📝 Problem Description
- The printing process stops midway and an error message 'Printing Anomaly' is displayed on the touchscreen.
- After tapping “Continue,” the print can temporarily resume.
- The issue may occur repeatedly during printing.
¶ 🔎 Possible Causes
- The Filament is tangled, causing abnormal feeding.
- The toolhead that reports the error is clogged.
- The Filament is broken and stuck inside the filament tube.
- An issue with the filament feeder.
¶ ✅ Temporary Workaround:
- On the touchscreen, go to print preferences and set the Air Printing Detection sensitivity to Low.
- On the touchscreen, go to print preferences and turn off the Air Printing Detection feature.
¶ 🛠️ Troubleshooting Steps
¶ 1. Check the Filament and confirm whether there is any tangling.
¶ 2. Check whether the corresponding toolhead is clogged
After tapping “Continue,” observe whether the Filament can be extruded normally.
¶ 3. Check whether there is broken Filament stuck inside the filament tube.
¶ 4. Swap the left and right filament feeder
Observe whether the issue follows the filament feeder. For example, if the error originally occurred on toolhead 2, check whether the issue moves to toolhead 3 or toolhead 4 after swapping.
¶ ✅ Solution
- If the Filament is tangled, reorganize it and restart the print.
- If the toolhead is clogged, clean it and try printing again.
- If broken Filament is found inside the filament tube, remove it before continuing.
- If the issue follows the filament feeder after swapping, the problem is likely caused by the filament feeder. Please collect the troubleshooting information and contact after-sales support.
¶ 💬 Reach out to Snapmaker Support
After following the troubleshooting steps, if you find it difficult to resolve your issue, kindly submit a support ticket through https://snapmaker.formcrafts.com/u1-troubleshooting-request and share your troubleshooting results with some pictures/videos.
Our dedicated support team will be more than willing to assist you in resolving the issue.