1.Printhead Dry-Firing (Prolonged Inactivity Without Moisturization)
Once cured, UV ink is extremely difficult to clean. If the printer remains unused for an extended period (exceeding 2–3 days) without proper moisturizing maintenance, the ink will cure inside the nozzles, resulting in permanent clogging. Never leave the printhead exposed to the air overnight without covering it with a moisturizing cap or flushing it with cleaning fluid.
2.Direct Sunlight Exposure
UV ink cures instantly upon exposure to ultraviolet light. Never expose the printhead to direct sunlight or strong UV lamps; doing so will cause the ink on the nozzle surface to cure into a film, rendering the printhead permanently unusable.
3.Use of Non-Original or Inferior Ink
Different brands of ink vary in their chemical composition, viscosity, and particle size. Never mix inks from different brands or unknown sources; doing so can trigger chemical reactions that create precipitates, clogging filters and nozzles—a condition that is extremely difficult to resolve.
Printhead Impact with Hard Objects
During setup, calibration, or the printing process, never allow the printhead to collide with walls, fixtures, or any hard objects. The nozzle surface of the printhead is an extremely delicate and precision-engineered component; even a minor bump can cause scratches or deformation to the nozzles, resulting in permanent print banding or nozzle deflection (misdirection).
4.Failure to Clean After Use
Never shut down the printer at the end of the day's work without performing a cleaning routine. You must execute a "press ink" (flash jet) or cleaning cycle to purge residual ink from the nozzle surface, followed by a wipe-down with a non-woven cloth to prevent ink from accumulating and curing within the nozzle orifices.