Print device and non-transitory computer readable medium
AssigneeBrother Kogyo Kabushiki Kaisha
InventorsNaoki Mizuno, Takao Hyakudome
Life of this patent
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Abstract
A nozzle arrangement of a head portion of a printer includes nozzle arrays arranged in a first direction. Each of the nozzle arrays has nozzles arranged in a second direction crossing the first direction. Each of the nozzles is provided to eject liquid. The printer includes a set of liquid passages provided to supply the liquid to the nozzle arrangement. The set of liquid passages has liquid passages interconnected via a communication path. The nozzles in each of the nozzle arrays is connected to a corresponding one of the liquid passages. In selective flushing that is performed a plurality of times, among the nozzles configuring the nozzle arrays, liquid is ejected from the nozzles arranged in a first region adjacent to the communication path.
Claims13
A print device comprising:
- a head portion including a nozzle arrangement, the nozzle arrangement having nozzle arrays arranged in a first direction, each of the nozzle arrays having nozzles arranged in a second direction crossing the first direction, each of the nozzles being provided to eject liquid, and the nozzles having first nozzles and second nozzles different from the first nozzles;
- a set of liquid passages provided to supply the liquid to the nozzle arrangement, the set of liquid passages having liquid passages arranged in the first direction and interconnected via a communication path, the nozzles in each one of the nozzle arrays being connected to a corresponding one of the liquid passages, each of the liquid passages extending in the second direction and having a first end and a second end in the second direction, the first end being connected to a supply port provided to supply the liquid to the liquid passage, and the second end being an end opposite to the first end and connected to the communication path;
- a controller provided to control a flushing operation of the head portion, the flushing operation being an operation of ejecting the liquid from the nozzles as waste liquid, and the waste liquid not being used for printing;
- and
- the controller being configured to control the head portion to perform a selective flushing operation, the selective flushing operation being an operation of ejecting the liquid from the first nozzles corresponding to a part, being at least one of the liquid passages, of the set of liquid passages while stopping ejection of the liquid from the second nozzles corresponding to a remaining part of the set of liquid passages, and the controller performing the selective flushing operation for a first number of times when the controller determines that an elapsed time from a previous flushing operation is longer than a first time period.
A non-transitory computer readable medium storing computer readable instructions which, when executed by a processor of a print device provided with:
- a head portion including a nozzle arrangement, the nozzle arrangement having nozzle arrays arranged in a first direction, each of the nozzle arrays having nozzles arranged in a second direction crossing the first direction, each of the nozzles being provided to eject liquid, and the nozzles having first nozzles and second nozzles different from the first nozzles;
- a set of liquid passages provided to supply the liquid to the nozzle arrangement, the set of liquid passages having liquid passages arranged in the first direction and interconnected via a communication path, the nozzles in each one of the nozzle arrays being connected to a corresponding one of the liquid passages, each of the liquid passages extending in the second direction and having a first end and a second end in the second direction, the first end being connected to a supply port provided to supply the liquid to the liquid passage, and the second end being an end opposite to the first end and connected to the communication path;
- and
- the processor provided to control a flushing operation of the head portion, the flushing operation being an operation of ejecting the liquid from the nozzles as waste liquid, and the waste liquid not being used for printing,
- perform processes comprising:
- first determining whether an elapsed time from a previous flushing operation is longer than a first time period;
- performing selective flushing, the selective flushing causing the liquid to be ejected from the first nozzles and stopping ejection of the liquid from the second nozzles;
- second determining whether the selective flushing is performed for a first number of times;
- and
- repeatedly performing the selective flushing until it is determined in the second determining that the selective flushing is performed for the first number of times, when it is determined in the first determining that the elapsed time is longer than the first time period.
Dependencies are inferred from the claim text.