System and Method for Selecting and Applying Appropriate Print Quality Defect Correction Technique to Compensate for Specified Print Quality Defect
First Claim
1. A system for selecting and applying the appropriate print quality defect correction technique to compensate for specified print quality defects, comprising:
- at least one printhead deployed to perform an operation that forms an image on a print medium sheet composed of multiple adjacently-positioned swaths of print;
a sensor mechanism deployed to perform an operation that scans the image, detects the presence of specified print quality defects in the multiple adjacently-positioned swaths of print, and generates an output corresponding to a detected print quality defect; and
a control mechanism communicating with and controlling the operations performed by said printhead and said sensor mechanism and containing an algorithm that responds to the sensor mechanism output by(a) analyzing the output,(b) comparing the output with a threshold value, and(c) when the output exceeds the threshold value, selecting and applying an appropriate print quality defect correction technique to said printhead that compensates for the presence of the detected print quality defect in the multiple adjacently-positioned swaths of print in subsequent images that are formed by the printhead.
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Accused Products
Abstract
A system for selecting and applying an appropriate print quality defect correction technique to compensate for specified print quality defects includes a printhead deployed to perform an operation that forms an image on a print medium sheet composed of multiple adjacently-positioned swaths of print, a sensor mechanism deployed to perform an operation that scans the image, detects the presence of specified print quality defects in the multiple adjacently-positioned swaths of print, and generates an output corresponding to the detected defect, and a control mechanism communicating with and controlling operations of the printhead and sensor mechanism and storing an algorithm that responds to the sensor mechanism output by analyzing and comparing the output with a stored threshold value and when the output exceeds the stored threshold value selecting and applying an appropriate print quality defect correction technique to the printhead that compensates for the detected print quality defect in the multiple adjacently-positioned swaths of print in subsequent images that are formed by the printhead.
117 Citations
20 Claims
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1. A system for selecting and applying the appropriate print quality defect correction technique to compensate for specified print quality defects, comprising:
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at least one printhead deployed to perform an operation that forms an image on a print medium sheet composed of multiple adjacently-positioned swaths of print; a sensor mechanism deployed to perform an operation that scans the image, detects the presence of specified print quality defects in the multiple adjacently-positioned swaths of print, and generates an output corresponding to a detected print quality defect; and a control mechanism communicating with and controlling the operations performed by said printhead and said sensor mechanism and containing an algorithm that responds to the sensor mechanism output by (a) analyzing the output, (b) comparing the output with a threshold value, and (c) when the output exceeds the threshold value, selecting and applying an appropriate print quality defect correction technique to said printhead that compensates for the presence of the detected print quality defect in the multiple adjacently-positioned swaths of print in subsequent images that are formed by the printhead. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for selecting and applying the appropriate print quality defect correction technique to compensate for the different print quality defects, comprising:
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forming an image on a print medium sheet composed of multiple adjacently-positioned swaths of print; scanning the image to detect the presence of specified print quality defects in the multiple adjacently-positioned swaths of print; generating an output corresponding to the detected print quality defect; and responding to the output corresponding to the detected print quality defect by employing an algorithm that (a) analyzes the output, (b) compares the output with a threshold value, and (c) when the output exceeds the threshold value, selects and applies an appropriate print quality defect correction technique to said forming of an image that compensates for the presence of the detected print quality defect in the multiple adjacently-positioned swaths of print in subsequent images that are formed. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification