INK-JET PRINTING APPARATUS AND INK CARTRIDGE THEREFOR
First Claim
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1. An ink supply system mountable on an ink jet printing apparatus having a print head which ejects ink droplets onto a recording medium, an ink supply needle and a plurality of elastic electrical contact forming members, the ink supply system comprising:
- an ink container for storing ink;
an ink supply port for receiving the ink supply needle, the ink supply port having an exit opening and a centerline;
a circuit board having a semiconductor storage device with information about the ink and a plurality of electrodes, each said electrode having at least one contact portion for contacting a corresponding elastic electrical contact forming member of the ink jet printing apparatus so that said contact portions are arranged in a first row and a second row;
the second row being closer to the exit opening of the ink supply port than the first row, at least one of said electrodes having a central contact portion located on the centerline of the ink supply port.
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Abstract
An ink jet type printing apparatus in which an ink supply needle is located near one side in a direction perpendicular to the reciprocated directions of a carriage, a circuit board is mounted on a wall of an ink cartridge in the vicinity of the side on which an ink supply port is formed and plural contacts for connecting to external control means are formed on the exposed surface of the circuit board.
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Citations
39 Claims
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1. An ink supply system mountable on an ink jet printing apparatus having a print head which ejects ink droplets onto a recording medium, an ink supply needle and a plurality of elastic electrical contact forming members, the ink supply system comprising:
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an ink container for storing ink; an ink supply port for receiving the ink supply needle, the ink supply port having an exit opening and a centerline; a circuit board having a semiconductor storage device with information about the ink and a plurality of electrodes, each said electrode having at least one contact portion for contacting a corresponding elastic electrical contact forming member of the ink jet printing apparatus so that said contact portions are arranged in a first row and a second row;
the second row being closer to the exit opening of the ink supply port than the first row, at least one of said electrodes having a central contact portion located on the centerline of the ink supply port. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An ink supply system mountable on an ink jet printing apparatus having a print head which ejects ink droplets onto a recording medium, an ink supply needle and a plurality of elastic electrical contact forming members, the ink supply system comprising:
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an ink container for storing ink; an ink supply port for receiving the ink supply needle, the ink supply port having an exit opening and a centerline; a circuit board having a semiconductor storage device with information about the ink and a plurality of electrodes, each said electrode having at least one contact portion for contacting a corresponding elastic electrical contact forming member of the ink jet printing apparatus so that said contact portions are arranged in a first row including a first number of the contact portions and a second row including a second number of the contact portions, the first number being smaller than the second number, and the second row is closer to the exit opening of the ink supply port then the first row. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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Specification