Ink jet recording head having a common wiring structure and ink jet recording apparatus

An ink cartridge, comprising:

• an ink jet recording head including:
• a device substrate having an edge which constitutes a part of a face of a discharging portion;
• and
• a plurality of thermal energy generating elements arranged in an array on said device substrate and which change a state of an ink to thereby generate thermal energy sufficient to discharge the ink in a direction perpendicular to an upper surface of said device substrate,
• wherein the elements are arranged at a substantially equal interval, and a first element of said plurality of elements is adjacent to a second element of said plurality of elements
• a first individual wiring portion for supplying a signal only to said first element is connected only to said first element and a second individual wiring portion for supplying a signal only to said second element is connected only to said second element,
• wherein the thermal energy generating elements include a plurality of pairs, each said pair having one said first element and one said second element in that order repeatedly are respectively arranged in an array at a substantially equal interval, and
• said first and said second elements are connected to a common wiring portion, said common wiring portion being arranged between said first and said second elements,
• wherein said first and said second elements are disposed at a turn portion of a wiring structure which is closest to the edge of the device substrate;
• and
• an ink container for storably receiving ink to be supplied to said ink jet recording head, the ink container being detachably fitted to the ink jet recording head.

An ink jet recording apparatus, comprising:

• an ink cartridge including:
• an ink jet recording head including:
• a device substrate having an edge which constitutes a part of a face of a discharging portion;
• and
• a plurality of thermal energy generating elements arranged in an array on the device substrate and which change a state of an ink to thereby generate thermal energy sufficient to discharge the ink,
• wherein said elements are arranged at a substantially equal interval, and a first element of said plurality of elements is adjacent to a second element of said plurality of elements
• a first individual wiring portion for supplying a signal only to said first element is connected only to said first element and a second individual wiring portion for supplying a signal only to said second element is connected only to said second element,
• wherein the thermal energy generating elements include plurality of pairs, each said pair having one said first element and one said second element in that order repeatedly are respectively arranged in an array at a substantially equal interval, and
• said first and said second elements are connected to a common wiring portion, said common wiring portion being arranged between said first and said second elements,
• wherein said first and said second elements are disposed at a turn portion of a wiring structure which is closest to the edge of the device substrate;
• and
• an ink container for storably receiving the ink to be supplied to said ink jet recording head, the ink container being detachably fitted to said ink jet recording head;
• a carriage having said ink cartridge detachably mounted thereon;
• and
• driving means for reciprocally driving said carriage in a main scanning direction perpendicular to a direction of conveying a recording medium.

An ink jet recording apparatus, comprising:

• an ink cartridge including:
• an ink jet recording head including:
• a device substrate having an edge which constitutes a part of a face of a discharging portion;
• and
• a plurality of thermal energy generating elements arranged in an array on the device substrate and which change a state of an ink to thereby generate thermal energy sufficient to discharge the ink in a direction perpendicular to an upper surface of the device substrate,
• wherein said elements are arranged at a substantially equal interval, and a first element of said plurality of elements is adjacent to a second element of said plurality of elements
• a first individual wiring portion for supplying a signal only to said first element is connected only to said first element and a second individual wiring portion for supplying a signal only to said second element is connected only to said second element,
• wherein the thermal energy generating elements include a plurality of pairs, each said pair having one said first element and one said second element in that order repeatedly are respectively arranged in an array at a substantially equal interval, and
• said first and said second elements are connected to a common wiring portion, said common wiring portion being arranged between said first and said second elements,
• wherein said first and said second elements are disposed at a turn Portion of a wiring structure which is closest to the edge of the device substrate;
• an ink container for storably receiving the ink to be supplied to said ink jet recording head, said ink container being detachably fitted to said ink jet recording head;
• a carriage having said ink cartridge detachably mounted thereon;
• and
• driving means for reciprocally driving said carriage in a main scanning direction perpendicular to a direction of conveying a recording medium.

An ink cartridge, comprising:

• an ink jet recording head including:
• a device substrate having an edge which constitutes a part of a face of a discharging portion;
• and
• a plurality of thermal energy generating elements arranged in an array on said device substrate and which change a state of an ink to thereby generate thermal energy sufficient to discharge the ink,
• wherein said elements are arranged at a substantially equal interval, and a first element of said plurality of elements is adjacent to a second element of said plurality of elements
• a first individual wiring portion for supplying a signal only to said first element is connected only to said first element and a second individual wiring portion for supplying a signal only to said second element is connected only to said second element,
• wherein the thermal energy generating elements include a plurality of pairs, each said pair having one said first element and one said second element in that order repeatedly are respectively arranged in an array at a substantially equal interval, and
• said first and said second elements are connected to a common wiring portion, said common wiring portion being arranged between said first and said second elements,
• wherein said first and said second elements are disposed at a turn portion of a wiring structure which is closest to the edge of the device substrate;
• and
• an ink container for storably receiving the ink to be supplied to the ink jet recording head, the ink container being detachably fitted to said ink jet recording head.