Invention Grant
US08384944B2 Printing apparatus and control method with adjustment unit correcting the displacement of the print position by pixel unit, and another unit correcting the displacement by the unit smaller than the pixel
有权
具有调整单元的打印装置和控制方法,通过像素单元校正打印位置的位移,以及通过小于像素的单位校正位移的另一单元
- Patent Title: Printing apparatus and control method with adjustment unit correcting the displacement of the print position by pixel unit, and another unit correcting the displacement by the unit smaller than the pixel
- Patent Title (中): 具有调整单元的打印装置和控制方法,通过像素单元校正打印位置的位移,以及通过小于像素的单位校正位移的另一单元
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Application No.: US11480490Application Date: 2006-07-05
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Publication No.: US08384944B2Publication Date: 2013-02-26
- Inventor: Norihiro Kawatoko , Yuji Hamasaki , Atsushi Sakamoto , Aya Hayashi , Hidehiko Kanda , Toshiyuki Chikuma , Jiro Moriyama
- Applicant: Norihiro Kawatoko , Yuji Hamasaki , Atsushi Sakamoto , Aya Hayashi , Hidehiko Kanda , Toshiyuki Chikuma , Jiro Moriyama
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2005-200145 20050708
- Main IPC: G06K15/00
- IPC: G06K15/00

Abstract:
Provided is a print position control method whereby displacement of a print position in a wide range can be corrected very accurately, without reducing a printing speed or increasing a manufacturing cost. Thus, a printing apparatus includes: a first correction unit, for correcting a print position at accuracy equal to the resolution of the printing apparatus; and a second correction unit, for correcting the print position at accuracy higher than the resolution and in the range of an area that corresponds to one pixel of the resolution. With this arrangement, the print position displacement in a wide range equal to or greater than one pixel can be corrected by the first correction unit, and a print position displacement smaller than one pixel can be corrected by the second correction unit. Therefore, correction of a print position displacement in a wide range is enabled at a higher accuracy.
Public/Granted literature
- US20070008361A1 Printing apparatus and control method therefor Public/Granted day:2007-01-11
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