US 7,585,039 B2
Ink jet printing apparatus and ink jet printing method
Takashi Ochiai, Machida (Japan); Hitoshi Tsuboi, Kawasaki (Japan); and Satoshi Wada, Machida (Japan)
Assigned to Canon Kabushiki Kaisha, Tokyo (Japan)
Filed on Dec. 10, 2007, as Appl. No. 11/953,353.
Claims priority of application No. 2006-336031 (JP), filed on Dec. 13, 2006.
Prior Publication US 2008/0143767 A1, Jun. 19, 2008
Int. Cl. B41J 2/15 (2006.01)
U.S. Cl. 347—12  [347/40; 347/43] 8 Claims
OG exemplary drawing
 
1. An ink jet printing apparatus for performing printing on a printing medium based on ejection data by using a printing head having a plurality of ejection opening arrays, each ejection opening array having a plurality of ejection openings which eject the same color ink and which are arranged along a first direction, the ejection opening arrays being arranged along a second direction intersecting with the first direction, wherein:
a ratio of ejection data distributed to at least one specific ejection opening array among the plurality of ejection opening arrays is higher than that of ejection data distributed to ejection opening arrays other than the at least one specific ejection opening array.