Patent ID: 7384110
Filing Date: 2008-06-10
Classification: B41J

Abstract:
1. A method for adjustment of a printing apparatus, comprising: receiving an instruction from a user via a user interface; upon receiving said instruction, forming a plurality of patterns on a medium using an ink ejecting section that elects ink onto said medium, each of said patterns being a pattern for adjusting a different object; detecting each of said patterns with a sensor; and adjusting each of the plurality of objects based on a result of detecting each of said patterns wherein said ink electing section is capable of moving while ejecting ink; wherein one of said plurality of objects is a timing at which ink is ejected from the moving ink ejecting section; wherein the pattern for adjusting said timing is made of a plurality of correction patterns; wherein each of said correction patterns comprises a first dot row group formed by the ink ejected by said moving ink ejecting section in a forward pass and a second dot row group formed by the ink ejected by said moving ink ejecting section in a return pass; wherein said first dot row group comprises a plurality of dot rows formed at a predetermined pitch in a movement direction of said ink ejecting section; wherein said second dot row group comprises a plurality of dot rows formed at the same pitch as the dot rows of said first dot row group; and wherein a shift amount of each of said correction patterns by which said first dot row group is shifted with respect to said second dot row group is different from the shift amount of another one of said correction patterns by a predetermined difference.