Patent ID: 6024439
Filing Date: 2000-02-15
Classification: B41J

Abstract:
An ink jet head comprising:an energy generation element unit having a mating surface, a plurality of energy generation elements for ejecting a liquid, a plurality of connecting electrodes projectingly formed on said mating surface, and a plurality of signal wires each having a first end and a second end, said first end and said second end being connected to said energy generation elements and said connecting electrodes, respectively;a driving element unit having a mating surface, a plurality of driving elements for driving said energy generation elements, a plurality of connecting electrodes projectingly formed on said mating surface, and a plurality of signal wires each having a first end and a second end, said first end and said second end being connected to said driving elements and said connecting electrodes, respectively, said connecting electrodes of said energy generation element unit and said connecting electrodes of said driving element unit being connected to each other by mutually mating together said mating surfaces; anda projecting portion for maintaining a gap between said mating surfaces of said energy generation element unit and said driving element unit, whereina part of said projecting portion is aligned with respective said connecting electrodes.