An integrated thin film electrographic writing head. The writing head has integrated therein a plurality of marking electrodes or nibs arranged in a linear array for writing onto a medium, and a plurality of high voltage driving circuits for driving the nibs. The write head also includes a plurality...http://www.google.de/patents/US5237346?utm_source=gb-gplus-sharePatent US5237346 - Integrated thin film transistor electrographic writing head
