Monitoring

Inkjet measurement standardization(TC 119)

fig9

Contact angle measurement

fig10

Contact angle

○ Pico-Liter droplet contact angle on various substrates
○ Exact placement of droplet on a target location
○ Drying process measurement
○ Ink filling process measurement

Inkjet monitoring system

fig11

Head diagnosis based on piezo self-sensing

○ Low cost and high speed measurement
(Dimatix : Q-class Head and S-class)
○ Less than 1sec for 256 nozzle scanning for faulty nozzle detection
○zero form factor

Jetting characterization

fig12

Jetting evaluation and measurement items

○Jetting performance evaluation
(jetting speed, volume, droplet mass)
○Jetting frequency characterization
○Jet straightness
○Drop formation measurement
○Evaluation of ligament and satellites