Method and apparatus for printer cartridge identification
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United States of America Patent
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Nov 11, 2003
Grant Date -
May 1, 2003
app pub date -
Nov 1, 2001
filing date -
Nov 1, 2001
priority date (Note) -
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Abstract
A cartridge identification system for identifying a characteristic of a cartridge inserted in a printer. The cartridge identification system comprises an identification circuit which is triggered by an electrical connection between a printed circuit board coupled to the cartridge and a plurality of spring contacts in a cartridge receptacle in the printer. An electrical logic signal is read by an internal processing unit, which determines a characteristic of the cartridge based on the logic signal.
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