Inkjet technology has recently emerged as one of the most powerful patterning tools for electronics devices. For inkjet technology to be a reliable patterning tool, the jetting status of the inkjet dispenser needs to be monitored to immediately detect any malfunction. We present a self-sensing circuit to detect failure of jetting by measuring electrical signal only. In addition, practical issues of inkjet condition monitoring for multi-nozzle printhead are discussed. Finally, software was developed and presented to demonstrate the feasibility of the proposed method for detecting jetting failures in printing systems.