1. Insufficient Width or Height Adjustment
Operators manually set the width and height when feeding cartons into the sealer. However, unfamiliarity with the machine or operational errors during adjustment can cause jamming.
Solution: The best approach is to place the carton on the sealer's work surface for comparison and adjustment, ensuring the feed dimensions are correct.

2. Carton Too Light to Pass Through Core Mechanism
To fully grasp this equipment's performance characteristics, one must understand its strengths and weaknesses—or, more directly, the sealer's operating principle (for detailed knowledge, refer to this article). The automatic sealer applies tape by pressing the carton against guide rollers during conveyance, thereby affixing the tape to the carton. However, if the carton is too light, it may fail to impact the guide roller sufficiently, directly causing jamming.
3. Tape Not Severed
This indicates the cutting blade is dull and unable to cut the tape cleanly. Uncut tape causes the carton to jam in the sealer, halting further conveyance.
Solution: Regularly clean or replace the cutting blade to maintain sharpness. (After prolonged use, automatic case sealers accumulate tape residue and dust on the blade, necessitating timely cleaning.)