Back to results
US 9,751,299 B2Granted
Inkjet recording device and inkjet recording method
AssigneeMimaki Engineering Co., Ltd.
InventorsKazuhiro Ochi, Eiichi Ohara
Life of this patent
Estimating the term…
Abstract
An inkjet recording device and an inkjet recording method are provided to suppress occurrence of banding in an inkjet recording technology using a plurality of heads. Control is performed on two heads in which some of nozzles of one head overlap nozzles of the other head such that at least one head does not perform ejection from nozzles included in the overlapping nozzles and positioned at ends of nozzle rows.
Claims7
An inkjet recording device, comprising:
- a plurality of heads;
- and
- a controller, configured to control ink ejection of the plurality of heads,
- wherein, in each of the plurality of heads, a plurality of nozzle rows each consisting of a plurality of nozzles arranged in a first direction is apposed in a second direction intersecting with the first direction,
- in at least one set of two heads of the plurality of heads, positions of a portion of nozzles of one head in the first direction overlap positions of a portion of nozzles of the other head, and
- the controller controls the two heads such that
- (i) with respect to overlapping nozzles, ink is ejected from the nozzles of any one head, and
- (ii) with respect to a set of at least one pair of nozzles consisting of nozzles of the heads included in the overlapping nozzles and disposed at same position or at close positions in the first direction, switching to a head to eject ink according to positions in the second direction on an ink ejection object is performed, and
- (iii) at least one head of the two heads does not perform ejection from nozzles included in the overlapping nozzles and disposed at ends of the nozzle rows.
6 more elements
An inkjet recording method using a plurality of heads, wherein
- in each of the plurality of heads, a plurality of nozzle rows each consisting of a plurality of nozzles arranged in a first direction is apposed in a second direction intersecting with the first direction,
- in at least one set of two heads of the plurality of heads, positions of a portion of nozzles of one head in the first direction overlap positions of a portion of nozzles of the other head, and
- the inkjet recording method includes a head control process of controlling the two heads such that
- (i) with respect to overlapping nozzles, ink is ejected from the nozzles of any one head, and
- (ii) with respect to a set of at least one pair consisting of nozzles of the heads included in the overlapping nozzles and disposed at same position or at close positions in the first direction, switching to a head to eject ink according to positions in the second direction on an ink ejection object is performed, and
- (iii) at least one head of the two heads does not perform ejection from nozzles included in the overlapping nozzles and disposed at ends of the nozzle rows.
3 more elements
Dependencies are inferred from the claim text.