Current demands for higher production and higher throughput put usually print-heads to the limits of their thermal performance. Due to the very nature of the inkjet ejection process heat tends to accumulate on the print-heads parts, raising its temperature and challenging its Print Quality performance and Reliability. The change of the viscosity properties with temperature result in variations in drop weight that alter the colors along the page. Some materials and special glues can break down after many thermal cycles above an specific temperature. For that reason it is of great importance to have a temperature control strategy. Hardware and software strategies are discussed in this paper.
Pere Cantí, "Temperature Control in Thermal Inkjet" in Proc. IS&T Int'l Conf. on Digital Printing Technologies (NIP21), 2005, pp 137 - 140, https://doi.org/10.2352/ISSN.2169-4451.2005.21.1.art00040_1