Off-carrier inkjet print supply with memory
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United States of America Patent
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Dec 5, 2000
Grant Date -
N/A
app pub date -
Jun 19, 1998
filing date -
Jun 19, 1998
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The invention ensures the proper operation of an inkjet printer by determining whether ink contained within a remote ink cartridge is compatible with ink contained within a printhead cartridge, and controlling the printer accordingly. The invention determines compatibility by comparing information related to characteristics of the ink contained in each cartridge. The printhead cartridge memory device stores information relating to characteristics of the printhead and the ink stored in a printhead cartridge reservoir. The remote ink cartridge memory device stores information relating to characteristics of the ink stored in a remote ink cartridge reservoir. Since the number of characteristics that can be stored is determined by the capacity of the memory devices, the present invention overcomes the limitations of prior devices which forced compatibility by mechanical devices. The remote ink cartridge memory device also provides a member for storing information, such as a drop count value, which indicates the amount of ink remaining in the remote ink cartridge reservoir.
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