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公开(公告)号：EP2138317A3
公开(公告)日：2010-08-25
申请号：EP09162237.3
申请日：2009-06-09
CPC分类号： B41J11/00 , B41J11/007 , B41J11/0095 , B41J13/0027
摘要： A printing apparatus and a conveyance control method are provided, both capable of detecting a print medium conveying state highly precisely in an entire process of conveying the print medium being printed. For this purpose, the surface of the print medium placed on the belt and the surface of the belt are detected to acquire the moving distance or moving speed of the print medium. Based on the moving distance or moving speed thus obtained, the driving of the belt is controlled. Even in a situation where the object being detected switches from the print medium to the belt in the middle of the conveying operation, the measurement of the moving distance can be performed without interruption by the same detection method using the same optical sensor unit.
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12.发明公开
公开(公告)号：EP1741560A3
公开(公告)日：2008-04-16
申请号：EP06014051.4
申请日：2006-07-06
发明人： Sakamoto, Atsushi , Kawatoko, Norihiro , Hamasaki, Yuji , Kanda, Hidehiko , Chikuma, Toshiyuki , Hayashi, Aya , Moriyama, Jiro , Hayashi, Masashi , Tanaka, Hirokazu
CPC分类号： B41J2/2135 , B41J25/001
摘要： The present invention can correct, when a printing position is displaced by an inclination of a printing head for example, the displacement in an easy and effective manner and also allows a user to easily recognize the displacement of the printing position to correct the displacement. To realize this, dots (61, 62) for forming a test pattern are formed by different scannings by a nozzle group including a plurality of nozzles (N176~N192) positioned at one end side of a nozzle row and a nozzle group including a plurality of nozzles (N1~N16) positioned at the other end side of the nozzle row. Depending on displacements of the printing positions of these dots (61, 62), the plurality of nozzles (N1~N192) constituting the nozzle row are divided to a plurality of divided nozzle groups. Then, the printing position is adjusted on the basis of the divided nozzle groups.
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