Ink jet recording apparatus and method capable of performing high-speed recording by controlling ...

40 Pages·2013·1.89 MB·English

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. US005280310A
Unlted States Patent [19] [11] Patent Number: 5,280,310
Otsuka et al. [45] Date of Patent: Jan. 18, 1994
[54] INK JET RECORDING APPARATUS AND 4,723,129 2/1988 Endo et al. ........................ .. 346/ 1.1
METHOD CAPABLE OF PERFORMING 4,740,796 4/ 1988 Endo et a1.
HIGH_SPEED RECORDING BY 5,138,333 8/1992 Bartky et al. ................. .. 346/140 R
CONTROLLING THE MENISCUS OF INK IN
FOREIGN PATENT DOCUMENTS
DISCHARGING ORIFICES '
0208484 l/l987 European Pat. Off. .
[75] Inventors: Naoji Otsuka, Kawasaki; Kentaro
0354706 2/1990 European Pat. Off. .
Yano; Kiichiro Takahashi, both of
59-123670 7/l984 Japan .
Yokohama; Atsushi Arai, Kawasaki; 59-13846] 8/1984 Japan .
Hitoshi Nishikori, Yokohama; 1180353 7/1989 Japan .
Osamu Iwasaki, Tokyo, all of Japan
Primary Examiner-Benjamin R. Fuller
[73] Assignee: Canon Kabushiki Kaisha, Tokyo,
Assistant Examiner-N. Le
Japan
Attorney, Agent, or Firm-Fitzpatrick, Cella, Harper &
[21] Appl. 190.: 872,924 Scinto
[22] Filed: Apr. 23, 1992 [57] ABSTRACT
[30] Foreign Application Priority Data An ink is ejected at the same timing from ejection ori
?ces in a number corresponding to an ink quantity 7%
Apr. 26, 1991 [JP] Japan ........................ .. 3-097249
or less of an ink quantity ejected from all the ejection
Mar. 31, 1992 [JP] Japan . . . . . . . . . . . . . .. 4-77411 enabled ejection ori?ces of a plurality of ejection ori
[51] Int. Cl.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. B41J 2/01 ?ces of a recording head, and the ink ejection period
[52] US. Cl. . . . . . . . . . . . . . . . . . . . . . . . . .. 346/140 R from all the ejection enabled ejection ori?ces is set to be
[58] Field of Search ........................... .. 346/140 R, 1.1 70% or more of the driving period. Since the quantity
[56] References Cited of an ink ejected per unit time is minimized, and the
negative pressure level generated in a common ink
U.S. PATENT DOCUMENTS
chamber can be set to be closest to normal pressure, the
4,313,124 1/1982 Hara .............................. .. 346/140 R amplitude of a re?ll oscillation is minimized to stabilize
4,345,262 8/1982 Shirato et a]. . 346/140 R ejection, and the driving frequency can be further in
4,459,600 7/ 1984 Sato et a1. . . . . . . . . . .. 346/ 140 R creased.
4,463,359 7/1984 Ayata et al. .... .. 346/l.1
4,558,333 12/1985 Sugitani et al. 346/140 R
4,580,148 4/1986 Domoto et a1. .............. .. 346/140 R 16 Claims, 25 Drawing Sheets
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