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INK-JET PRINTING APPARATUS AND INK CARTRIDGE THEREFOR

  • US 20090040274A1
  • Filed: 09/10/2008
  • Published: 02/12/2009
  • Est. Priority Date: 05/18/1998
  • Status: Abandoned Application
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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