← All symptomsSafety stop: Stop the process if there is smoke, an electrical fault, a strong unfamiliar odor, melting, cracked glass, or evidence that the material is not heat-rated. Follow the equipment and blank manufacturer’s safety instructions.
Prioritized checks
Starting order
Confirm or weaken each cause before changing the next variable.
1
Blank or coating is not compatible
Evidence that supports it
- The whole image is weak despite correct process settings.
- The blank has no documented sublimation coating or polyester content.
Evidence against it
- The same blank lot produced strong transfers with the same print.
Safe next actions
- Confirm the exact blank/SKU is rated for sublimation.
- Test a documented compatible blank before changing multiple process variables.
2
Insufficient effective heat or dwell
Evidence that supports it
- Color improves when a documented setting is used.
- A calibrated probe shows the platen is cooler than the display.
Evidence against it
- Paper is browning or the blank is scorching.
Safe next actions
- Return to the product-specific starting setting.
- Verify platen temperature and change one variable at a time within supplier guidance.
3
Wrong paper side, media setting, or color workflow
Evidence that supports it
- Ink remains on the paper or the print was made on the uncoated side.
- A recent driver/profile change preceded the failure.
Evidence against it
- The same transfer file and print system produced a correct control.
Safe next actions
- Confirm the printable paper side and printer media/profile settings.
- Print a known control target before changing press settings.