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US 2001/0012033 A1Published application
Printing apparatus and a printing method
AssigneeCanon Kabushiki Kaisha
InventorsMITSUHIRO ONO, DAIGORO KANEMATSU, HIDEHIKO KANDA, YOSHINORI NAKAJIMA
Life of this patent
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Abstract
In a multipass printing using a print head which has a plurality of staggered columns of print elements, one and the same print line is formed by using nozzles (k1-129, k2-1) of different nozzle columns (k1, k2) to disperse the directivity of landing deviations of dots in the same print line.
Claims18
A printing apparatus using a print head to perform printing, comprising:
- main scan means for scanning the print head relative to a recording medium in a main scan direction;
- sub-scan means for scanning the recording medium relative to the print head in a sub-scan direction different from the main scan direction;
- and
- control means for controlling to main-scan the print head a plurality of times over the same print line on the recording medium with at least one sub-scan operation interposed between the main scan operations to print the line, the print head having a plurality of staggered columns of print elements;
- wherein the control means controls to use the print elements of different columns to complete the printing of the same print line.
2 more elements
A printing method using a print head to perform printing, comprising the steps of:
- moving the print head relative to a recording medium in a main scan direction;
- moving the recording medium relative to the print head in a sub-scan direction different from the main scan direction;
- and
- controlling to main-scan the print head a plurality of times over one and the same print line on the recording medium with at least one sub-scan operation interposed between the main scan operations to print the line, the print head having a plurality of staggered columns of print elements;
- wherein the print elements of different columns are used to complete the printing of the same print line.
2 more elements
Dependencies are inferred from the claim text.