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Liquid ejecting apparatus

A liquid and equipment technology, applied in the field of liquid ejection equipment, can solve the problems of increasing the volume of the liquid ejection head and the like

Pending Publication Date: 2022-06-21
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to achieve a configuration capable of switching the circulation flow path as described in Japanese Patent Application Laid-Open No. 2019-142107 by using 4 control valves (on-off valve mechanism) as described in Japanese Patent No. 6256692, the four gas chambers are Necessary, and increases the volume of the liquid ejection head

Method used

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Experimental program
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no. 1 approach

[0030] (Description of liquid ejection device)

[0031] will refer to 1A to 6E The liquid ejection apparatus according to the first embodiment of the present disclosure is described. Figure 1A is a schematic perspective view of the main part of the liquid ejection apparatus 50 including the liquid ejection head 1 of the first embodiment, Figure 1B It is a block diagram of the control system of the liquid discharge apparatus 50. FIG. The liquid ejection apparatus 50 of the present embodiment is a serial scan type inkjet recording apparatus that ejects liquid such as ink from the liquid ejection head 1 and records images, characters, graphics, etc. on the recording medium P, and the liquid ejection Head 1 is an ink jet recording head. The liquid ejection head 1 is mounted on the carriage 53, and the carriage 53 is driven by the carriage motor 303 (see Figure 1B ) and can be driven along the guide shaft 51 in the main scanning direction ( Figure 1A in the direction of arr...

no. 2 approach

[0068] The second embodiment of the present disclosure will be described below. Since the configurations of the three-way valves 92 and 93 in the present embodiment are different from those in the first embodiment, the differences will be mainly described. Since other points are the same as those of the first embodiment, the description thereof is omitted. Figure 7A and Figure 7B The first three-way valve 92 and the second three-way valve 93 of the present embodiment are schematically shown. Figure 7A The illustrated first three-way valve 92 of the present embodiment has a first opening 87 and a second opening 88 that communicate with each other from the circulating supply path 75 . The first opening 87 is connected to the first flow path 73 via the pressurized chamber 91 . The second opening 88 is connected to the second flow path 74 via the valve chamber 99 . The pressurized chamber 91 is provided with an external opening 63 . The circulation supply path 75 , the fir...

no. 3 approach

[0075] A third embodiment of the present disclosure will be described below. Since the configurations of the three-way valves 92 and 93 in the present embodiment are different from those in the first and second embodiments, the differences will be mainly described.

[0076] Since other points are the same as those of the first and second embodiments, the description thereof is omitted. Figure 8A The first three-way valve 92 of the present embodiment is schematically shown, Figure 8BThe second three-way valve 93 is shown schematically. The first three-way valve 92 of the present embodiment constitutes the first on-off valve mechanism 25 and the fourth on-off valve mechanism 26 . The second three-way valve 93 constitutes the second on-off valve mechanism 71 and the third on-off valve mechanism 72 . The first three-way valve 92 includes the first on-off valve mechanism 25 and the fourth on-off valve mechanism 26 , and simultaneously opens and closes the first on-off valve me...

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PUM

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Abstract

The liquid ejecting apparatus includes: two flow paths for supplying or recovering a liquid to or from an element substrate to eject the liquid; a circulation supply flow path for supplying a liquid to one flow path; a circulation recovery flow path for recovering the liquid from the other flow path; and a plurality of opening and closing valve mechanisms for controlling communication and disconnection between the flow paths. The opening and closing valve mechanism includes an opening between the flow paths, a sealing part capable of opening and closing the opening, an urging member for urging the sealing part in a direction toward or away from the opening, and a moving mechanism for moving the sealing part against the urging of the urging member. The liquid discharge device controls the opening and closing of at least two opening and closing valve mechanisms by moving the sealing parts of the at least two opening and closing valve mechanisms together by means of a moving mechanism.

Description

technical field [0001] The present disclosure relates to liquid ejection devices. Background technique [0002] The liquid ejection head of the liquid ejection apparatus includes a control valve for controlling the supply of liquid for an initial filling operation for filling an internal flow path with liquid and a recovery operation for filling the internal flow path with liquid, and the recovery operation for removing the liquid in the flow path. Thickened liquid or air bubbles are discharged from the spout. Japanese Patent Application Laid-Open No. 2019-142107 discloses a structure in which a flexible member expanded by the pressurization of the gas in the gas chamber is pressed against the control valve to forcibly open the control valve. [0003] In addition, there is a circulation type liquid ejection apparatus that flows the liquid in the liquid ejection head for the purpose of discharging air bubbles in the flow path and preventing an increase in the viscosity of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/14B41J2/18
CPCB41J2/14B41J2/18B41J2/17596B41J29/38B41J2/17513B41J2/175
Inventor 中村阳平山田和弘
Owner CANON KK