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US 6,629,789 B2Granted
Printing apparatus, driving condition setting method for printhead, and storage medium
AssigneeCanon Kabushiki Kaisha
InventorNorihiro Kawatoko
Life of this patent
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AssigneeCanon Kabushiki Kaisha
InventorNorihiro Kawatoko
Estimating the term…
A printing apparatus capable of easily setting driving conditions in consideration of conditions on the printing apparatus main body side as well at an arbitrary point of time is disclosed. The printing apparatus including a printhead having a plurality of print elements and a head driver for generating a pulse-like driving signal supplied to the printhead. The apparatus sets driving conditions for a printhead with test patterns obtained by simultaneously driving a predetermined number of print elements of the plurality of print elements are printed on the printing medium while the pulse width of the driving signal is decreased stepwise from a predetermined value. Then, the boundary value of a pulse width with which a print element is not properly driven is obtained from the test patterns, and the pulse width of a driving signal generated by the head driver is controlled on the basis of the boundary value.
A printing apparatus for performing printing on a printing medium by a printhead having a plurality of print elements, comprising:
A driving condition setting method for a printhead in a printing apparatus including a printhead having a plurality of print elements and driving means for generating a driving pulse signal supplied to the printhead, comprising:
A storage medium storing a program for implementing a driving condition setting method for a printhead in a printing apparatus including a printhead having a plurality of print elements and driving means for generating a driving pulse signal supplied to the printhead, the program including a program code corresponding to:
Dependencies are inferred from the claim text.