COMPENSATION FOR THERMAL DISTORTION IN A PRINTING SYSTEM
First Claim
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1. A method of compensating for thermally induced misalignments in a printing system comprising:
- measuring two or more temperatures of a structure within said printing system;
mathematically differencing said two or more temperatures to produce a differenced value;
inputting said differenced value into a correlation equation, said correlation equation predicting a misalignment of a target printing system component; and
compensating for said predicted misalignment of said target printing system component.
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Abstract
A method of compensating for thermally induced misalignments in a printing system includes measuring two or more temperatures of a structure within the printing system, mathematically differencing the two or more temperatures to produce a differenced value, inputting the differenced value into a correlation equation, the correlation equation predicting a misalignment of a target printing system component, and compensating for the predicted misalignment of the target printing system component.
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Citations
15 Claims
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1. A method of compensating for thermally induced misalignments in a printing system comprising:
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measuring two or more temperatures of a structure within said printing system; mathematically differencing said two or more temperatures to produce a differenced value; inputting said differenced value into a correlation equation, said correlation equation predicting a misalignment of a target printing system component; and compensating for said predicted misalignment of said target printing system component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of compensating for thermally induced misalignments in a page-wide-array inkjet printing system comprising:
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strategically placing temperature sensors on a structure within said printing system to measure thermal gradients in said printing system, said structure supporting a printhead; generating a differencing equation, said differencing equation configured to operating on temperature inputs to produce a differenced value; generating a correlation equation by applying a curve fit to a data set comprising measured misalignments of said printhead; measuring two or more temperatures of said structure using said temperature sensors; inputting said two or more temperatures to said differencing equation to produce a differenced value; inputting said differenced value into said correlation equation, said correlation equation outputting a predicted misalignment of said printhead based on said differenced value; and compensating for said predicted misalignment of said printhead by altering a firing timing of said printhead to align ink deposited by said printhead with ink deposited by a separate reference printhead. - View Dependent Claims (12, 13, 14, 15)
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Specification