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Using DTF ink in a sublimation printer is not a simple swap. Because the ink chemistries are completely different, you must thoroughly clean all lines, dampers, and the printhead to remove all traces of sublimation ink; failing to do so can cause cross-contamination that destroys your printhead.

While printing is unattended, you should still implement a system for periodic checks. A recommended best practice is to have a workflow where every 20th–25th print is pulled from the output tray for visual inspection by the opening staff to catch feed issues or ink starvation early, preventing waste across the entire queue.

To prevent mechanical issues during unattended runs, you must perform a thorough pre-shift maintenance protocol. This includes running a complete nozzle check and a mandatory white ink purge to clear air bubbles and ensure the printheads are firing at maximum capacity before the long job begins.

Dampers act as critical buffer reservoirs positioned between the ink supply lines and the printhead. They perform two essential tasks: stabilizing ink flow pressure variations caused by carriage movement and filtering out contaminants or sediment before they can clog the microscopic nozzles.