Patent ID: 6416152
Filing Date: 2002-07-09
Classification: B41J

Abstract:
An ink jet printer comprising:a print head including a plurality of nozzles through which ink is ejected; an ink supply needle connecting to said print head; a detecting device for detecting information stored in a memory device; and a control section connected to said detecting device and receiving information from said detecting device; an ink cartridge for containing ink therein, said ink cartridge being mountable on the printer and engageable with said ink supply needle, said ink cartridge comprising: a housing having an opening and a wall; a lid covering said opening of said housing; an ink supply port formed on said wall of said housing, said ink supply port being engageable with said ink supply needle; said memory device storing information about the ink cartridge mounted on one of said housing and said lid and; a seal member affixed to a part of said housing or said lid, said seal member having been constructed and positioned to cover said memory device at least before the ink cartridge is initially mounted on the printer.