Incremental printing of symbolic information – Ink jet – Controller
Patent
1997-01-21
1998-09-22
Burr, Edgar S.
Incremental printing of symbolic information
Ink jet
Controller
347 14, B41J 29393
Patent
active
058121560
ABSTRACT:
A printing system includes a replaceable cartridge for housing a supply of consumable marking media. The cartridge includes a cartridge memory for recording printing system-related parameters, including marking media parameters. A replaceable printing device, such as an ink jet head, includes a printhead memory for recording printing device-related parameters. A processor is coupled to the cartridge memory, the printhead memory and is responsive to parameters read from both memories to derive printing system function control values that are dependent upon one or more marking media parameters from the cartridge memory and one or more parameters from the printhead memory. The processor is thus able (in the case of an ink jet printing system) to determine a current ink supply value from a cumulative usage value stored on the cartridge memory and a drop volume parameter stored on the printhead memory. Further, a drop volume parameter stored on the printhead memory can be adjusted to accommodate a media type sensed by a media sensor.
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Bullock Michael L.
Childers Winthrop D.
Burr Edgar S.
Ghatt Dave A.
Hewlett--Packard Company
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