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Cleaning method, cleaning apparatus, and liquid ejecting apparatus

一种清洗装置、液体喷射头的技术，应用在引用其全部内容领域，能够解决破坏等问题

Active Publication Date: 2012-07-04
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a concern that the air in the closed space region will be sucked into a normal nozzle or a nozzle from which air bubbles have been removed, thereby causing damage to the meniscus of the ink in the nozzle.

Method used

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  • Cleaning method, cleaning apparatus, and liquid ejecting apparatus
  • Cleaning method, cleaning apparatus, and liquid ejecting apparatus
  • Cleaning method, cleaning apparatus, and liquid ejecting apparatus

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0055] Below, based on Figure 1 ~ Figure 4 A first embodiment of the present invention will be described as an inkjet printer (hereinafter also referred to as a “printer”) which is one type of liquid ejecting apparatus. In addition, in the following description, when referring to "front-rear direction", "up-down direction" and "left-right direction", unless otherwise specified, they refer to "front-rear direction", "up-and-down direction" indicated by arrows in each figure, unless otherwise specified. Direction" and "Left-Right Direction". In this case, the direction from the back side to the front side of the "front-back direction" in this case corresponds to the conveyance direction (sub-scanning direction) of the recording medium, the "up-down direction" corresponds to the vertical direction, and the "left-right direction" corresponds to The width direction (main scanning direction) intersecting with the conveyance direction of the recording medium.

[0056] Such as fig...

no. 2 approach

[0100] Next, based on Figure 5 as well as Image 6 A second embodiment of the present invention will be described. In addition, when comparing the second embodiment with the first embodiment, the structure of the cleaning device 25 is partially different, and the other is substantially the same structure as the first embodiment. Therefore, in the following, points different from the first embodiment will be mainly described, and the same reference numerals will be attached to the same configurations, and repeated descriptions will be omitted.

[0101] Such as Figure 5 As shown, in the cleaning device 25 of the second embodiment, the front end side of the inflow hose 57 constituting a part of the inflow channel 59 is released to the atmosphere. In addition, in the inflow hose 57 , a pump 71 is arranged between the front end side of the inflow hose 57 and the second on-off valve 67 instead of the atmosphere release valve 58 . The pump 71 is a hose pump having substantially...

no. 3 approach

[0119] Next, based on Figure 7 as well as Figure 8 A third embodiment of the present invention will be described. In addition, the third embodiment differs in part from the first and second embodiments in the configuration of the cleaning device 25 , and has substantially the same configuration as the first and second embodiments. Therefore, in the following, points different from those of the first and second embodiments will be mainly described, and the same reference numerals will be assigned to the same configurations, and repeated descriptions thereof will be omitted.

[0120] Such as Figure 7 As shown, in the cleaning device 25 according to the third embodiment, the pump 81 which is the same hose pump is disposed in the middle of the discharge flow path 48 and the inflow flow path 59 .

[0121] That is, the pump 81 has a pump casing 82 formed in a substantially cylindrical shape, and in the pump casing, the middle portion of the discharge hose 45 in the longitudina...

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PUM

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Abstract

In the printer, after ink is discharged from nozzle openings by making a closed space area, formed by bringing a cap into contact with a recording head, enter into a negative pressure state due to negative pressure accumulated in a discharge flow path by driving a pump, when making the negative pressure state of the closed space area be subjected to a pressure change in a direction of coming to an atmospheric pressure state, after the air flows into the closed space area by making a second opening and closing valve provided at an inflow flow path which makes the closed space area and an aerial space communicate with each other be in an opened state, the inflow of the air into the closed space area through the inflow flow path is stopped in a state where negative pressure remains in the closed space area.

Description

[0001] This application claims priority from Japanese Patent No. 2010-265182 filed on November 29, 2010, Japanese Patent No. 2010-265183 filed on November 29, 2010, and Japanese Patent No. 2010-265183 filed on December 2, 2010 Priority of Patent No. 2010-269478, which is hereby incorporated by reference in its entirety. [0002] technical area [0003] The present invention relates to a cleaning method, a cleaning device and a liquid spraying device. Background technique [0004] Conventionally, an inkjet printer has been known as one type of liquid ejecting apparatus for ejecting liquid onto a recording medium. This printer performs recording on a recording medium by ejecting ink (liquid) from nozzle openings formed in a liquid ejection head. [0005] In this printer, in order to reduce ink discharge failures, a closed space region is formed by bringing a bottomed box-shaped cover into contact with the liquid ejection head so as to surround the nozzle opening for ejecting i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/165
CPCB41J2/16532B41J2/16526B41J2/17596
Inventor 松本大辅山田阳一小桥胜
Owner SEIKO EPSON CORP
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