Inkjet print heads with inductive heating

摘要

Embodiments are directed to a polymeric print head useful for inkjet printing. The inkjet print head has an injection molded, polymeric ink-carrying portion that includes conductive particles. The print head also includes a plurality of inductor coils embedded in a inductive heating portion. The plurality of inductor coils are configured to generate a magnetic field that induces heat in the conductive particles. The print head includes a source of high frequency, low amperage alternating current that is configured to supply current to at least one of the plurality of inductor coils.

主权项

1. An assembly comprising:
a print head that includes: an ink-carrying portion capable of inductive heating response, the ink-carrying portion comprising:
a first side and an opposing second side, anda polymer containing conductive particles; a first inductive heating portion proximate to the first side of the ink-carrying portion, a second inductive heating portion proximate the opposing second side of the ink-carrying portion, the first and second inductive heating portions comprising a plurality of inductor coils arranged along the ink-carrying portion, each of the inductive coils, when energized, configured to generate a magnetic field that induces heat in the ink carrying portion, the plurality of inductive coils distributed in the inductive heating portion so that induced heat at edges of the ink carrying portion is greater than induced heat at a center of the ink carrying portion.