Printing apparatus, pattern, and computer system

Details Printing apparatus, pattern, and computer system Printing apparatus, pattern, and computer system

2007-03-06

2007-03-06

Huffman, Julian D. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Controller

Reexamination Certificate

active

10780859

ABSTRACT:
A printing apparatus comprises an ejection head for selectively ejecting ink droplets of a plurality of sizes to form dots on a printing medium. The printing apparatus is capable of printing a correction pattern on the printing medium, the correction pattern enabling correction of a misalignment between a position at which dots are formed during a forward pass through which the head is moved and a position at which dots are formed during a return pass through which the head is moved, and a spacing in a sub-scanning direction between dots that make up the correction pattern printed by ejecting ink droplets of a certain size from the ejection head is different from a spacing in the sub-scanning direction between dots that make up the correction pattern printed by ejecting ink droplets of a different size from the ejection head.

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