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US 9,168,736 B2Granted
Recording device, method of controlling a recording device, and storage medium storing a program executed by a control unit that controls a recording device
AssigneeSeiko Epson Corporation
InventorHideaki Takahashi
Life of this patent
Estimating the term…
Abstract
The time required for a nozzle check is minimized without reducing the accuracy of the nozzle check. An inkjet line printer has a nozzle check control unit that performs a nozzle check to detect ejection problems in the nozzles of plural nozzle rows of the inkjet line head. The nozzle check control unit applies the nozzle check to a portion of the nozzles in the group of nozzles in a specific range where two mutually overlapping nozzle rows overlap.
Claims10
A recording device comprising:
- a conveyance unit configured to convey a recording medium;
- a first recording head having a first nozzle row formed with nozzles aligned in a direction intersecting the conveyance direction of the recording medium;
- a second recording head having a second nozzle row formed with nozzles aligned in a direction intersecting the conveyance direction of the recording medium, the second nozzle row is configured to eject ink in the same color as the first nozzle row;
- and
- a nozzle check control unit configured to perform a nozzle check that detects ejection problems in nozzles of the first nozzle row of the first recording head and nozzles of the second nozzle row of the second recording head;
- wherein the first nozzle row and the second nozzle row are disposed separated in the conveyance direction so that the first nozzle row and second nozzle row overlap in a first range in the conveyance direction and do not overlap in a second range in the conveyance direction;
- and
- the nozzle check control unit configured to apply the nozzle check to one portion of the nozzles in a group of nozzles in the first range and configured to not apply the nozzle check to another portion of the nozzles in the group of the nozzles in the first range.
5 more elements
A method of controlling a recording device comprising:
- providing a conveyance unit configured to convey a recording medium,
- providing a first recording head having a first nozzle row formed with nozzles aligned in a direction intersecting the conveyance direction of the recording medium, and a second recording head having a second nozzle row formed with nozzles aligned in a direction intersecting the conveyance direction of the recording medium, the second nozzle row are configured to eject one color of ink same as the first nozzle row, and
- providing a nozzle check control unit configured to perform a nozzle check that detects ejection problems in nozzles of the first nozzle row of the first recording head and nozzles of the second nozzle row of the second recording head,
- wherein the first nozzle row are disposed separated in the conveyance direction so that the first nozzle rows and second nozzle rows overlap in a first range in the conveyance direction and do not overlap in a second range in the conveyance direction, and
- applying the nozzle check to a portion of the nozzles in a group of nozzles in the first range and not applying the nozzle check to another portion of the nozzles in the group of nozzles in the first range.
2 more elements
Dependencies are inferred from the claim text.