| Step | Operation | Criterion |
|---|---|---|
| Step 1: Lower Temperature | Reduce temperature by 10-20℃ and retry | Colors return to normal → original temperature was too high |
| Step 2: Shorten Time | Reduce time by 5-10 seconds | No more burning → original time was too long |
| Step 3: Reduce Pressure | Loosen pressure bar or lower compressor output | No burning after pressure reduction → pressure was too high |
| Step 4: Test with Different Fabric | Test on known compatible fabric (e.g., 65% polyester) | No burn on new fabric → original fabric can't withstand heat, switch to low-temp consumables |
One-Sentence Summary: At least one of the three parameters – temperature, time, or pressure – is overdone. Adjust only one variable at a time, never all three together.
Prevention: Provide customers with a "Quick Reference Parameter Chart" listing recommended temperature/time/pressure combinations for common fabrics and consumables. Post it next to the machine.