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US 2013/0271518 A1Published application
Inkjet printer
AssigneeBrother Kogyo Kabushiki Kaisha
InventorsKyoichi MORITA, Hidenobu KONDO, Isao KUBO, Takahiro IKENO
Life of this patent
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Abstract
An inkjet printer is provided that includes a control device configured to determine an ink discharge moment when an inkjet head discharges an ink droplet from nozzles while moving within at least one of a acceleration range to accelerate the inkjet head and a deceleration range to decelerate the inkjet head, based on a distance between an ink discharge surface of the inkjet head and a recording sheet held in a predetermined wave shape and an amount of change in a moving velocity of the inkjet head.
Claims14
An inkjet printer comprising:
- an inkjet head configured to discharge ink droplets from nozzles formed in an ink discharge surface thereof while reciprocating relative to a recording sheet along a scanning direction parallel to the ink discharge surface;
- a wave shape holding mechanism configured to hold the recording sheet in a predetermined wave shape that has top portions of portions protruding in a first direction toward the ink discharge surface and bottom portions of portions recessed in a second direction opposite to the first direction, the top portions and the bottom portions alternately arranged along the scanning direction;
- and
- a control device configured to:
- control the inkjet head to move along the scanning direction and discharge the ink droplets from the nozzles;
- and
- determine ink discharge moments to discharge the ink droplets from the nozzles while the inkjet head is moving within at least one of an acceleration range to accelerate the inkjet head and a deceleration range to decelerate the inkjet head, based on a distance between the ink discharge surface and the recording sheet held in the predetermined wave shape and a moving velocity of the inkjet head.
4 more elements
An inkjet printer comprising:
- an inkjet head configured to discharge ink droplets from nozzles formed in an ink discharge surface thereof while reciprocating relative to a recording sheet along a scanning direction parallel to the ink discharge surface;
- a wave shape holding mechanism configured to hold the recording sheet in a predetermined wave shape that has top portions of portions protruding in a first direction toward the ink discharge surface and bottom portions of portions recessed in a second direction opposite to the first direction, the top portions and the bottom portions alternately arranged along the scanning direction;
- and
- a control device configured to:
- control the inkjet head to move along the scanning direction and discharge the ink droplets from the nozzles;
- and
- determine ink discharge timing to discharge an ink droplet from the nozzles while the inkjet head is moving within a predetermined printable range comprising at least one of an acceleration range to accelerate the inkjet head and a deceleration range to decelerate the inkjet head, based on a moving velocity of the inkjet head and a distance, depending on a position of the inkjet head in the scanning direction, between the ink discharge surface and the recording sheet held in the predetermined wave shape.
4 more elements
An inkjet printer configured to form an image on a sheet, comprising:
- an inkjet head configured to discharge an ink droplet from an ink discharge surface thereof;
- a head moving mechanism configured to reciprocate the inkjet head in a predetermined printable range along a scanning direction;
- a detector configured to detect a position of the inkjet head in the scanning direction in the printable range;
- a sheet conveyor configured to convey the sheet in a sheet feeding direction perpendicular to the scanning direction and to corrugate the sheet in such a corrugated form that a flute of the corrugated sheet extends along the sheet feeding direction;
- and
- a control device configured to:
- control the head moving mechanism to reciprocate the inkjet head in the printable range along the scanning direction;
- detect the position of the inkjet head in the scanning direction in the printable range, using the detector;
- determine a moving velocity of the inkjet head in the scanning direction in accordance with a detection result of the detector;
- determine a distance between the ink discharge surface and the corrugated sheet in accordance with the position of the inkjet head in the scanning direction and the predetermined corrugated form of the sheet;
- determine an ink discharge timing to discharge the ink droplet from the ink discharge surface in accordance with the moving velocity of the inkjet head in the scanning direction and the distance between the ink discharge surface and the corrugated sheet;
- and
- control the inkjet head to discharge the ink droplet at the determined ink discharge timing.
10 more elements
Dependencies are inferred from the claim text.