With its state-of-the-art accredited laboratories and expert team, EUROLAB provides precise and fast testing services within the scope of IEC EN 62899-302-3 testing. IEC EN 62899-302-3 specifies in-flight imaging methods for measuring the direction of ink drops ejected from inkjet printheads using a drop tracker. It does not apply to holographic or other interference techniques or any method that evaluates ink drops that have accumulated. Specific to optional drop-in type inkjet printheads (used in printed electronic equipment).
Determining the jet drop direction of inks and inkjet printheads under certain operating conditions is important for accurate drop placement during the manufacture of printed electronics. Manufacturers incorporating such printheads into their equipment must know the angular spread of ink drop directions, as this affects the achievable spatial resolution of the printed material, and in particular whether any adjacent conductive lines can be connected with stray materials. This standard defines methods for in-flight imaging measurement of drop direction ejected from drop-on-demand inkjet printheads for use in printed electronic equipment.
This standard also uses just two different points to define the ejected drop direction, assuming a straight line motion and no electrical and gravitational effects on the ejected drops. In this standard, it is assumed that all drop tracer types provide a flat 2-D image plane and that the camera image plane is aligned perpendicular to the plane of the inkjet nozzle. This alignment can be checked using reliably ejected drops with different delays covering the region of interest in the camera image plane.
The drop trajectories of the drop-on-demand inkdrops studied using multiple flashes, high-speed photographs, and vertically mounted drop watchers showed straight-line motion arrests in the absence of lateral aerodynamics and significant electric field effects. The effects of gravity are generally negligible compared to the air drag forces acting on drop-on-demand inkjet drops sprayed almost vertically.
EUROLAB assists manufacturers with IEC EN 62899-302-3 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.
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