| US 7,588,306 B2 | ||
| Ink jet printing method and apparatus | ||
| Atsuhiko Masuyama, Kanagawa (Japan); Hiroshi Tajika, Kanagawa (Japan); Yuji Konno, Kanagawa (Japan); Norihiro Kawatoko, Kanagawa (Japan); Takayuki Ogasahara, New York, N.Y. (US); and Tetsuya Edamura, Kanagawa (Japan) | ||
| Assigned to Canon Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Mar. 04, 2008, as Appl. No. 12/41,822. | ||
| Application 12/041822 is a division of application No. 10/950422, filed on Sep. 28, 2004, granted, now 7,399,044. | ||
| Application 10/950422 is a division of application No. 10/214109, filed on Aug. 08, 2002, granted, now 6,866,358. | ||
| Claims priority of application No. 2001/245030 (JP), filed on Aug. 10, 2001; and application No. 2002/225314 (JP), filed on Aug. 01, 2002. | ||
| Prior Publication US 2008/0158275 A1, Jul. 03, 2008 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. B41J 29/38 (2006.01) | ||
| U.S. Cl. 347—14 [9/12; 9/41] | 7 Claims |
| 7. An ink jet printing apparatus for performing printing to a print medium by scanning a printing head having nozzles to the
print medium and transporting the print medium, comprising:
first means for performing printing to a first area including an edge of the print medium in a transporting direction;
second means for performing printing to a second area of the print medium which is farther from the edge than the first area;
and
third means for performing printing to a third area of the print medium which is farther from the edge than the second area,
wherein a number of nozzles usable in a single scan of the print head by the second means is greater than a number of nozzles
usable in a single scan of the print head by the first means and less than a number of nozzles usable in a single scan of
the print head by the third means, and
wherein a number of scans of the print head required to complete printing of each line of the first area by the first means,
a number of scans of the print head required to complete printing of each line of the second area by the second means, and
a number of scans of the print head required to complete printing of each line of the third area by the third means are the
same.
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