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Print device and control method

A technology of a printing device and a control unit, which is applied to the printing device, printing, etc., can solve the problem that the ink pressure is easily affected by temperature changes, and achieve the effect of preventing cyclic actions and reducing the possibility of

Active Publication Date: 2017-08-11
BROTHER KOGYO KK
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Problems solved by technology

Therefore, if the circulation path is not opened to the atmosphere, there is a problem that the pressure of the ink is easily affected by temperature changes.

Method used

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  • Print device and control method
  • Print device and control method

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Embodiment Construction

[0030] refer to Figure 1 to Figure 5 , the schematic configuration of the printer 1 will be described. The following description uses left and right, front and rear, and up and down indicated by arrows in the figure.

[0031] like figure 1 As shown, the printer 1 is an inkjet printer that ejects ink, which is an example of a liquid, onto a fabric such as a T-shirt as a printing medium (not shown in the figure) to perform printing. The printing medium may also be paper or the like. The printer 1 can, for example, eject five different inks (white, black, yellow, cyan, and magenta) downward to print a color image on a printing medium. In the following description, the white ink among the five inks is referred to as white ink. The four inks of black, cyan, yellow, and magenta are collectively referred to as color inks. When collectively referring to white ink and color ink, it is simply referred to as ink when neither is specified.

[0032] The printer 1 mainly prints by ej...

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Abstract

When a processor of a print device determines that an elapsed time since a circulation operation of a liquid is not less than a fixed time and does not determine that the elapsed time is not less than a first time, the processor performs a first circulation operation that circulates the liquid in a state in which a supply flow path and a circulation flow path are not open to the atmosphere. When the processor determines that the elapsed time is not less than the fixed time, is not less than the first time, and is less than a second time, the processor performs a second circulation operation that agitates the liquid more than the first circulation operation does. Therefore, the print device is able to agitate the liquid in accordance with the time that has elapsed since the circulation operation was last performed.

Description

technical field [0001] The present invention relates to a printing device and a control method. Background technique [0002] There are inkjet printers that agitate pigment ink to suppress degradation of image quality. For example, Japanese Patent Laid-Open No. 100988 2015 discloses an inkjet printer that moves pigment ink contained in a container by driving a pump to perform an agitation operation of stirring the pigment ink. [0003] During the agitation operation, the inkjet printer maintains the inside of the container at atmospheric pressure through the atmosphere communication hole of the container in order to move the pigment ink. Since it is open to the atmosphere, the pigment ink contained in the container is easy to dry. There is also a possibility that dust or the like enters through the atmosphere communication hole. Therefore, it may adversely affect the discharge performance of the print head to discharge the pigment ink. [0004] If the circulation path is...

Claims

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Application Information

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IPC IPC(8): B41J2/175B41J29/38
CPCB41J2/175B41J29/38B41J2/17596B41J2/18B41J2/04563
Inventor 加藤吉纪
Owner BROTHER KOGYO KK
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