Thermographic printing

This is called thermal printing and was used in older model fax machines and is used in most shop till receipt printers.

The second section of the process is a vacuum system that removes excess powder from areas of the sheet that were not printed.

When the process is correctly adjusted, the center of the largest filmed areas reach sufficient quality level as the product exits the heater.

The excess powder is then removed by raising the substrate to a vertical position and lightly tapping the back side.

The powdered sheet is then fed into a radiant heating system (as above) at a speed that achieves a good-quality melted film.