Ink-jet and ink jet recording apparatus having IC chip attached to head body by resin material

An ink-jet head comprising:

• a main head body including ink chambers formed therein;
• piezoelectric elements for changing a volume of each of the ink chambers in accordance with application of a driving voltage;
• and
• an IC chip including a driving circuit for driving the piezoelectric elements,
• wherein the IC chip is attached to an outer surface of the main head body by way of an anisotropic conductive material intervened therebetween such that at least one of the ink chambers is disposed under the IC chip, whereby the driving circuit is electrically connected to the piezoelectric elements.

An ink-jet recording apparatus comprising:

• an ink-jet head including:
• a main head body including ink chambers formed therein;
• piezoelectric elements for changing a volume of each of the ink chambers in accordance with application of a driving voltage;
• and
• an IC chip including a driving circuit for driving the piezoelectric elements, the IC chip being attached to an outer wall surface of the main body head by way of a resin material intervened therebetween such that at least one of the ink chambers is disposed under the IC chip;
• and
• a carriage for carrying the ink-jet head and an ink cartridge, the carriage being relatively movable with respect to an objective print medium,
• wherein the resin material is thermally conductive to radiate heat away from the IC chip to the ink-jet head.

An ink-jet recording apparatus comprising:

• an ink-jet head including:
• a main head body including ink chambers formed therein;
• piezoelectric elements for changing a volume of each of the ink chambers in accordance with application of a driving voltage;
• and
• an IC chip including a driving circuit for driving the piezoelectric elements, the IC chip being attached to an outer wall surface of the main head body by way of an anisotropic conductive material intervened therebetween wherein at least one of the ink chambers is disposed under the IC chip and whereby the driving circuit is electrically connected to the piezoelectric elements;
• and
• a carriage for carrying the ink-jet head and an ink cartridge, the cartridge being relatively movable with respect to an objective print medium.

A method for installing an IC chip including a circuit for driving piezoelectric elements to an ink-jet head for discharging an ink by driving the piezoelectric elements, comprising the steps of:

• placing an anisotropic conductive material having an adhesive property on one of an outer wall surface of the ink-jet head including head electrodes formed thereon and a surface of the IC chip including chip electrodes formed thereon;
• positioning the IC chip adjacent the outer wall surface of the ink-jet head such that at least one ink chamber formed in the ink-jet head is disposed under the IC chip;
• covering the anisotropic conductive material with the other of the outer wall surface of the ink-jet head including the head electrodes formed thereon and the surface of the IC chip including the chip electrodes formed thereon;
• and
• pressing the anisotropic conductive material interposed between the ink-jet head and the IC chip, from at least one of the ink-jet head and the IC chip.