06161915 is referenced by 139 patents and cites 20 patents.

The invention relates to an apparatus for providing information to a printer controller in order to identify the type of printer cartridge installed in a thermal ink jet printer. The apparatus includes a printer cable containing a set of electrically-conductive wires connected to contacts in a printer cable connector. The contacts of the printer cable connector make physical connection to an identification circuit on the printer cartridge. The identification circuit includes an electrical conductor which is at an electrical reference potential. When none, or one or more contacts on the cable connector are in electrical contact with the electrical conductor of the identification circuit, a signal corresponding to the identification of the printer cartridge is produced which is used by the printer controller to determine the type of printer cartridge installed in the printer. Selective contact between the connector contacts and the identification circuit, so as to produce an electrical code, may be obtained using a label having apertures, contact pads, electrical traces, or a combination thereof. Accordingly, various cartridge identification codes can be produced using various methods which allow encoding of the information on a cartridge during or after the manufacture of the cartridge body is substantially complete.

Title
Identification of thermal inkjet printer cartridges
Application Number
9/99814
Publication Number
6161915
Application Date
June 19, 1998
Publication Date
December 19, 2000
Inventor
David Howard White
Lexington
KY, US
George Keith Parish
Winchester
KY, US
Edmund Hulin James III
Lexington
KY, US
Mark Joseph Edwards
Lexington
KY, US
John Philip Bolash
Lexington
KY, US
Agent
Luedeka Neely & Graham
Agent
Michael T Sanderson
Assignee
Lexmark International
KY, US
IPC
B41J 2/175
B41J 29/393
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