05049898 is referenced by 376 patents and cites 15 patents.

A disposable printing assembly includes a memory element in which data characterizing the assembly can be stored. This data can characterize the identity of the assembly, or one or more of its operational characteristics. Such operational characteristics for an illustrative ink jet printhead assembly may include the color of ink in the printhead, its amount, or the position of the ink jet orifice plate on the printhead body. This data can then be read from the printhead by a read/write element in a printer and can be used or displayed as desired. The datum characterizing the position of the orifice plate, for example, can be used to controllably delay certain of the firing signals provided to the printhead to compensate for any misalignment. The datum characterizing ink amount can be updated by the write head to reflect use of ink during printing and can warn the user of an impending exhaustion of ink.

Title
Printhead having memory element
Application Number
326121
Publication Number
5049898
Application Date
July 13, 1990
Publication Date
September 17, 1991
Inventor
Robert R Beeson
Corvallis
OR, US
Alan R Arthur
Salem
OR, US
Assignee
Hewlett Packard Company
CA, US
IPC
B41J 2/01
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