JP-7856418-B2 - Liquid dispensing device and liquid container

JP7856418B2JP 7856418 B2JP7856418 B2JP 7856418B2JP-7856418-B2

Inventors

富江嶺祥
松村英明
森有里
武永健
武田大樹
島田皓樹
佐伯剛
麻田翔太
堤寛征

Assignees

キヤノン株式会社

Dates

Publication Date: 20260511
Application Date: 20211210

Claims (13)

A liquid dispensing head that dispenses liquid into the dispensing medium, The system includes a liquid container for containing the liquid to be supplied to the liquid discharge head, The liquid container comprises a storage section for storing the liquid to be supplied to the liquid discharge head, A liquid injection section into which a liquid injection container for injecting liquid into the storage section can be inserted in a first direction, A liquid holding means is provided at a position spaced apart from the liquid injection section in a second direction intersecting the first direction, and capable of holding the liquid, Ribs extending from the liquid injection section toward the liquid holding means, It has a liquid guiding section that guides the liquid from the liquid injection section to the liquid holding means in a direction intersecting the first direction, A liquid dispensing device characterized in that the upper surface of the rib in the first direction is in contact with the liquid holding means.
The liquid dispensing device according to claim 1, characterized in that the liquid guide portion includes a first protrusion provided opposite the outer surface of the liquid injection portion, and the outer surface of the liquid injection portion.
The liquid dispensing device according to claim 2, characterized in that the liquid induction portion includes the first protrusion and a part of the side surface constituting the storage portion.
The liquid dispensing device according to claim 2 or 3, characterized in that the first projection has a shape that surrounds the outer surface of the liquid injection portion, and has a first opening in at least a portion of the part that faces the liquid holding means in the second direction.
The liquid dispensing device according to claim 4, characterized in that the liquid container has a second projection extending from the liquid injection section through the first opening toward the liquid holding means, and the liquid guide section includes the second projection.
The liquid holding means is composed of an absorbent capable of absorbing liquid, and is provided at a position opposite the first opening of the liquid guide portion in the second direction, The liquid dispensing device according to claim 4 or 5, further comprising a second liquid holding means provided so as to surround the liquid guide portion and having a second opening in at least a portion of the liquid guide portion that faces the first opening.
The liquid dispensing device according to claim 6, characterized in that the second liquid holding means is composed of a protrusion provided in a shape that surrounds the liquid guide portion.
The liquid dispensing device according to claim 6, characterized in that the second liquid holding means is composed of a groove provided in a shape surrounding the liquid guide portion.
The storage section has at least one side made of film, The liquid dispensing device according to claim 3, characterized in that the side surface constituting the storage section included in the liquid induction section is a side surface made of the film.
The liquid dispensing device according to any one of claims 1 to 9, characterized in that the liquid guide portion includes a surface having a fine uneven shape.
The liquid holding means includes a first liquid holding portion composed of an absorbent capable of absorbing liquid, The liquid dispensing device according to any one of claims 1 to 5, characterized in that the upper surface of the rib is in contact with the first liquid holding portion.
The liquid ejection apparatus according to any one of claims 1 to 11, characterized in that the liquid is an ink containing a colorant, and the liquid ejection head is a recording head that records an image on the ejection medium.
A storage unit for storing the liquid supplied to the liquid discharge head that discharges the liquid onto the discharge medium, A liquid injection section into which a liquid injection container for injecting liquid into the storage section can be inserted in a first direction, A liquid holding means is provided at a position spaced apart from the liquid injection section in a second direction intersecting the first direction, and capable of holding the liquid, Ribs extending from the liquid injection section toward the liquid holding means, It has a liquid guiding section that guides the liquid from the liquid injection section to the liquid holding means in a direction intersecting the first direction, A liquid container characterized in that the upper surface of the rib in the first direction is in contact with the liquid holding means.

Description

This invention relates to a liquid dispensing device for recording data onto a recording medium by dispensing liquid, and to a liquid storage container for holding the liquid. Inkjet-type liquid ejection devices are known as liquid ejection devices equipped with a container for holding ink ejected from a recording head. Some of these liquid ejection devices have an ink inlet for injecting ink, allowing the user to inject ink into the container through the inlet. Patent Document 1 discloses a configuration in which ink adhering to the area around the ink injection section moves from an opening to an ink receiving section provided around the ink injection section. Patent No. 6102596 This figure shows the configuration of a liquid dispensing device according to the first embodiment.This figure shows the configuration including the housing of the liquid dispensing device according to the first embodiment.This diagram shows the configuration of the ink supply unit according to the first embodiment.This is a perspective view of the ink tank in the first embodiment.This is a perspective view of the opening and closing of the stopper member in the first embodiment.This is a cross-sectional view of the YZ region when the stopper member is opened and closed in the first embodiment.This is a YZ cross-sectional view of the insertion and removal of the ink injection container from the ink tank in the first embodiment.This is a perspective view of the area around the ink inlet 17 in the ink tank 6 in the first embodiment.This is a perspective view of an enlarged version of the ink tank in a different configuration according to the first embodiment.This is a perspective view of the area around the ink inlet 17 of the ink tank in the second embodiment.This is an enlarged cross-sectional view of the ink tank in the second embodiment, cut along the YZ plane including the ink inlet 17.This is a perspective view of the ink tank in the third embodiment.This is a perspective view of the ink tank in the third embodiment.This is a schematic diagram of the micro-machined surface according to the first to third embodiments. (First Embodiment) First, we will describe the outline of an inkjet recording apparatus as an example of a liquid ejection apparatus according to the present invention. Figure 1 is a schematic diagram of the inkjet recording apparatus according to this embodiment. The inkjet recording device 1 (hereinafter referred to as "recording device 1") is equipped with a paper feed roller (not shown), and the recording media loaded on the paper feed tray A are fed one by one by the paper feed roller. The fed recording media are then placed between the transport roller 7 and the pinch roller 8 and transported in the +Y direction shown in the figure. The back surface of the transported recording media is supported by the platen 3, and the distance between the nozzle (not shown) of the recording head 4, which is the liquid ejection head, and the recording media, which is the liquid ejection medium, is maintained at a constant or predetermined distance. In this state, ink, which is a liquid containing colorants, is ejected from the nozzle of the recording head 4 onto the recording media, thereby recording onto the non-recording medium. The recording head 4 has a nozzle for ejecting liquid ink and is mounted on the carriage 2. The carriage 2 moves back and forth in the X direction along the carriage rail 101 by a drive means such as a motor. The recording head 4 moves with the carriage 2 in the main scanning direction, ejecting ink droplets and recording one band of image onto the recording medium on the platen 3. Once one band of image is recorded, the recording medium is transported by the transport roller 7 by a predetermined amount in the transport direction (intermittent transport operation). By repeating this one-band recording operation and intermittent transport operation, an image is recorded on the recording medium based on the image data. The recording medium, after recording by the recording head 4 is complete, is fed between a paper output roller (not shown) and a spur, and then ejected into the paper output tray 9. Furthermore, the recording device 1 is equipped with multiple independent liquid storage containers, or ink tanks 6, corresponding to the colors of ink ejected from the recording head 4. The ink tanks 6 and the recording head 4 are connected via joints (not shown) using tubes 5 (see Figure 3), each corresponding to a different ink color. This allows the ink of each color contained in each ink tank 6 to be individually supplied to the nozzles of the recording head 4 corresponding to each ink color. The recording device 1 includes a cap portion 10 that covers the surface on which the nozzles of the recording head 4 are formed. The cap portion 10 is made of a flexible material and is configured to move between a capping position that covers the ink ejection portion 81 of the recording head 4 and a separate