Powder shaker.

The in-line unit between a DTF printer and the heat press, doing three jobs in one pass: it dusts hot-melt adhesive powder over the freshly printed sheet, shakes the excess back off, and carries the sheet through a heater that melts the powder into a transfer-ready layer. Powder bonds only to ink that is still wet. A sheet that skins over before it reaches the powder stage takes a thin, patchy coat across the design, and stray grains left sitting on the clear areas melt into a haze that presses onto the garment as a ghost outline. Neither fault shows while the design is still on film, so it turns up on a pressed garment or in a customer's laundry, and by then the run is scrap and the reprint is unpaid.