| US 7,549,720 B2 | ||
| Ink-jet recording device and ink-jet recording control method | ||
| Aya Hayashi, Sendai (Japan); Jiro Moriyama, Kawasaki (Japan); Hidehiko Kanda, Yokohama (Japan); Yuji Hamasaki, Kawasaki (Japan); Norihiro Kawatoko, Kawasaki (Japan); Toshiyuki Chikuma, Kawasaki (Japan); Atsushi Sakamoto, Kawasaki (Japan); Hirokazu Tanaka, Ohta-ku (Japan); and Masashi Hayashi, Sagamihara (Japan) | ||
| Assigned to Canon Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Jul. 06, 2006, as Appl. No. 11/428,891. | ||
| Claims priority of application No. 2005-199970 (JP), filed on Jul. 08, 2005. | ||
| Prior Publication US 2007/0008354 A1, Jan. 11, 2007 | ||
| Int. Cl. B41J 29/393 (2006.01) | ||
| U.S. Cl. 347—19 | 15 Claims |
| 12. A method capable of discharging ink to perform recording on a recording medium while main-scanning at least one recording
head, the at least one recording head including at least two ink discharge orifice rows arrayed in a direction of the main-scanning,
the method comprising:
having the recording head record a first pattern for adjusting driving timing within an ink discharge orifice row and a second
pattern for adjusting driving timing between the ink discharge orifice rows;
first adjusting driving timing within the ink discharge orifice row by classifying the respective ink discharge orifice row
into at least two ink discharge orifice groups, and controlling timing for discharging ink from at least one of ink discharge
orifices or at least one of the ink discharge orifice groups in the ink discharge orifice row in the main-scanning direction
relative to an ink discharge orifice or one of the ink discharge orifice groups serving as a reference in the ink discharge
orifice row, based on the first pattern, in performing recording on the recording medium; and
second adjusting driving timing between the ink discharge orifice rows by controlling timing for discharging ink from at least
one of the ink discharge orifice rows in the main-scanning direction relative to one of the ink discharge orifice rows serving
as a reference of the multiple ink discharge orifice rows, based on the second pattern, in performing recording on the recording
medium,
wherein driving timing within an ink discharge orifice row is not adjusted when the recording head records the second pattern.
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