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US 10,082,990 B2Granted
Printhead data error detection and response
AssigneeHewlett-Packard Development Company, L.P.
InventorsEric T Martin, Christopher Hans Bakker
Life of this patent
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Abstract
A printhead assembly includes ink ejection devices having nozzles, and processing electronics in communication with the ink ejection devices. The processing electronics implement logic to receive nozzle data for controlling the ink ejection devices, receive error detection data associated with the nozzle data, detect errors associated with the nozzle data using the error detection data, and generate fault data for the detected errors.
Claims20
A printhead assembly, comprising:
- ink ejection devices having nozzles;
- and
- processing electronics in communication with the ink ejection devices, the processing electronics to:
- receive nozzle data for controlling the ink ejection devices;
- receive error detection data computed based on the nozzle data;
- detect an error associated with the nozzle data using the error detection data;
- generate fault data for the detected error;
- and
- transmit the fault data to a printing system to cause the printing system to perform an action addressing a fault indicated by the fault data.
6 more elements
A method comprising:
- receiving nozzle data at a printhead assembly, the nozzle data for controlling ink ejection devices included in the printhead assembly and having nozzles;
- receiving error detection data at the printhead assembly, the error detection data computed based on the nozzle data;
- detecting an error in the nozzle data using the error detection data;
- generating fault data for the detected errors;
- and
- performing, in a printing system, an action addressing a fault indicated by the fault data.
3 more elements
A printing system comprising:
- an interface to receive a printhead assembly, the printhead assembly including ink ejecting devices having nozzles;
- and
- processing electronics connected to the interface, the processing electronics to:
- transmit nozzle data packets via the interface, the nozzle data packets including nozzle data for controlling the ink ejection devices during a print job and error detection data computed based on the nozzle data;
- receive fault data via the interface for errors associated with the nozzle data via the interface during the print job;
- and
- perform an action addressing a fault indicated by the fault data.
4 more elements
Dependencies are inferred from the claim text.