HYBRID THERMALRIOT MELT INK JET PRINTHEAD
Original Publication Date: 1994-Aug-31
Included in the Prior Art Database: 2004-Apr-07
Xerox Disclosure Journal
A hybrid thermavhot melt ink jet printhead A is shown in Figure 1. The ink jet printhead A comprises a reservoir layer 10 of any suitable material having formed therein a hot melt ink reservoir section 12, for holding a hot melt ink H, and a thermal fluid reservoir section 14, for holding a thermal fluid T. These two reservoir sections are separated by a wall 16. Located below the reservoir layer 10 is a substrate layer 20, conventionally made out of a glass or ceramic material. Formed in the substrate layer is a plurality of first inlets 22 communicating with the hot melt fluid reservoir 12 as well as a second inlet 24 communicating with the thermal fluid reservoir 14. The inlets 22 are relatively narrow in order to minimize a reverse flow of the hot melt ink back into its reservoir 12.