Minimization of cross-talk in a piezo inkjet printhead based on system identification and feedforward control

Amol A. Khalate, Xavier Bombois, Shenxi Ye, Robert Babuška, Sjirk Koekebakker

Research output: Contribution to journalArticleAcademicpeer-review

3 Citations (Scopus)

Abstract

The printing quality delivered by a drop-on-demand inkjet printhead is severely affected by the residual oscillations in an ink channel and the cross-talk between neighboring ink channels. For a single ink channel, our earlier contribution shows that the actuation pulse can be designed, using a physical model, to effectively damp the residual oscillations. It is not always possible to obtain a good physical model for a single ink channel. A physical model for a multi-input multi-output (MIMO) inkjet printhead is made even more sophisticated by the presence of the cross-talk effect. This paper proposes a system identification-based approach to build a MIMO model for an inkjet printhead. Additionally, the identified MIMO model is used to design new actuation pulses to effectively minimize the residual oscillations and the cross-talk. Using simulation and experimental results, we demonstrate the efficacy of the proposed method.

Original languageEnglish
Article number115035
Number of pages21
JournalJournal of Micromechanics and Microengineering
Volume22
Issue number11
DOIs
Publication statusPublished - 1 Nov 2012

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