Inkjet print-benefits of closed loop feedback

PROBLEM

Inkjet printing can suffer with print quality issues, print head contamination and in extreme circumstances print head failure due to static charges on substrates. 

Ink droplets will generate a negative charge caused by the Pezo crystal. The statically charged ink when exposed to a negatively charged substrate, will be repelled and go to the print head. 

When exposed to a positive charge will be attracted to the incorrect point on the substrate creating a mist or undefined edge.  

SOLUTION

• Controlling the static charge on the substrate during printing allows for precise ink laydown. Creating a slight uniform positive charge on the substrate ensures the ink is directed precisely. 

• A Hyperion bar linked to a feedback sensor will ensure continuous monitoring of the charge on the substrate by adjusting the bars balance in real time.  

• A SmartControl allows the two devices to communicate, monitors the devices, datalogging the information for quality control purposes.