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US 8,523,314 B2Granted
Ink jet recording apparatus to utilize ink and reaction liquid that agglutinates when reacted with coloring material-containing ink
AssigneeCanon Kabushiki Kaisha
InventorsKazuhiko Sato, Kazuo Suzuki, Taku Yokozawa, Yosuke Ishii
Life of this patent
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Abstract
Suitable preliminary discharge conditions are set for a recording head using reaction liquid in bidirectional recording. While the recording head makes a reciprocating motion and scans a recording medium, a preliminary discharge of the reaction liquid is executed after recording on the recording medium from discharge ports on the rear side in a direction in which the recording head travels and a preliminary discharge of ink is executed when a preliminary discharge of the reaction liquid is not executed.
Claims7
An ink jet recording apparatus comprising:
- a recording head comprising a discharge port face having an ink discharge port array that is sandwiched in a predetermined direction by a first reaction liquid discharge port array and a second reaction liquid discharge port array, wherein each discharge port array includes a plurality of discharge ports, wherein the ink discharge port array is configured to discharge coloring material-containing ink as ink and each reaction liquid discharge port array is configured to discharge reaction liquid configured to react with the ink;
- a scanning unit configured to cause the recording head to execute reciprocating scanning motion to perform a recording operation in a forward direction and a recording operation in a backward direction of the predetermined direction across a recording area located within a scanning area;
- and
- a preliminary discharge control unit configured to control the recording head to execute a preliminary discharge of the ink or the reaction liquid after ending a recording operation in the recording area and before starting a recording operation in the recording area,
- wherein, the preliminary discharge control unit causes the ink jet recording apparatus to perform a first preliminary discharge operation of performing, after the recording head executes the recording operation in the forward direction and while the recording head moves in the forward direction, a preliminary discharge from the reaction liquid discharge port array located downstream, in the forward direction, of the other reaction liquid discharge port array while not performing a preliminary discharge from the other discharge port arrays, and to perform a second preliminary discharge operation of performing, before the recording head executes the next recording operation in the backward direction and after the recording head moves in the forward direction, a preliminary discharge from the ink discharge port array while not performing a preliminary discharge from the first reaction liquid discharge port array and the second reaction liquid discharge port array.
2 more elements
A method for an ink jet recording apparatus, the method comprising:
- causing a recording head to execute reciprocating scanning motion to perform a recording operation in a forward direction and a recording operation in a backward direction of a predetermined direction across a recording area located within a scanning area, wherein the recording head includes a discharge port face having an ink discharge port array that is sandwiched in the predetermined direction by a first reaction liquid discharge port array and a second reaction liquid discharge port array, wherein each discharge port array includes a plurality of discharge ports, wherein the ink discharge port array is configured to discharge coloring material-containing ink as ink and each reaction liquid discharge port array is configured to discharge reaction liquid configured to react with the ink;
- and
- controlling the recording head to execute a preliminary discharge of the ink or the reaction liquid after ending a recording operation in the recording area and before starting a recording operation in the recording area,
- wherein, controlling includes causing the ink jet recording apparatus to perform a first preliminary discharge operation of performing, after the recording head executes the recording operation in the forward direction and while the recording head moves in the forward direction, a preliminary discharge from the reaction liquid discharge port array located downstream, in the forward direction, of the other reaction liquid discharge port array while not performing a preliminary discharge from the other discharge port arrays, and to perform a second preliminary discharge operation of performing, before the recording head executes the next recording operation in the backward direction and after the recording head moves in the forward direction, a preliminary discharge from the ink discharge port array while not performing a preliminary discharge from the first reaction liquid discharge port array and the second reaction liquid discharge port array.
1 more element
Dependencies are inferred from the claim text.