CN-117445554-B - Printing apparatus and liquid storage container

CN117445554BCN 117445554 BCN117445554 BCN 117445554BCN-117445554-B

Abstract

A printing apparatus and a liquid storage container are provided. The printing apparatus includes a liquid storage container including a storage chamber configured to store liquid supplied to a printing device that prints an image by discharging the liquid, an outlet portion of the liquid, and a passage configured to connect the storage chamber and the outlet portion. The liquid storage container includes a first side portion on a side of a printing area where printing is performed by the printing device, and a second side portion on an opposite side of the first side portion, and the passage is formed in the second side portion.

Inventors

Shimada Teruki
MATSUYAMA ATSUSHI
Yusuke sugu
TANAKA KOH
IWASAKI TAKAYA
MATSUMURA HIDEAKI
TONO TORU
TOKI NOBUHIRO
Takeda Oki
KAMEYAMA FUMIE
ASADA SHOTA
WU YONGJIAN
TANAKA YUSUKE
ARAKI YUTA
MARUYAMA YASUSHI

Assignees

佳能株式会社

Dates

Publication Date: 20260512
Application Date: 20210729
Priority Date: 20200731

Claims (19)

1. A printing apparatus, comprising: a carriage configured to move, on which a first print head for ejecting color ink and a second print head for ejecting black ink are mounted, and A storage container, comprising: a first storage chamber configured to store color ink to be supplied to the first printhead, the first storage chamber having an opening at a first side of the storage container sealed by a sealing member; an injection port detachably covered by a cover, the injection port being configured to allow color ink to be injected into the first storage chamber; A second storage chamber configured to store air therein and to communicate with outside air in a state where the injection port is covered by the cover; an upper limit indicator indicating an upper limit of an amount of color ink stored in the first storage chamber; a communication port configured to communicate with the first reservoir chamber and the second reservoir chamber, the communication port being located at a position higher than the upper limit indicator when the printing apparatus is in a posture at the time of use, and A channel configured to form a channel through which color ink flows, the channel being formed at a second side of the storage container opposite the first side.
2. The printing apparatus of claim 1, wherein the storage container includes a lower limit indicator indicating a lower limit of an amount of color ink stored in the first storage chamber.
3. The printing apparatus of claim 1, wherein color ink flows within the channel toward the first printhead.
4. The printing apparatus of claim 1, further comprising a tube configured to connect the first printhead and the storage container, the tube being connected to an outlet portion of the storage container.
5. The printing apparatus according to claim 1, wherein the first reservoir chamber is configured to communicate with outside air through the communication port.
6. The printing apparatus of claim 1, further comprising a canister cover configured to cover the injection port.
7. The printing apparatus of claim 1, wherein the injection port is formed at a top of the storage container.
8. The printing apparatus of claim 7, wherein a second slot is formed on the top portion, and the second slot is formed in a manner proximate to the injection port.
9. The printing apparatus of any of claims 1 to 8, further comprising a transport roller configured to transport the print medium in a first direction, The storage container is disposed downstream of the first printhead in the first direction.
10. The printing apparatus of any of claims 1 to 8, wherein the slot is not sealed by the sealing member.
11. A printing apparatus, comprising: a carriage configured to move, on which a first print head for ejecting color ink and a second print head for ejecting black ink are mounted, and A storage container, comprising: a first storage chamber configured to store color ink to be supplied to the first printhead, the first storage chamber having an opening at a first side of the storage container sealed by a sealing member; an injection port detachably covered by a cover, the injection port being configured to allow color ink to be injected into the first storage chamber; A second storage chamber configured to store air therein and to communicate with outside air in a state where the injection port is covered by the cover; a communication port configured to communicate with the first reservoir chamber and the second reservoir chamber, the communication port being located at a position higher than a liquid surface of a maximum amount of color ink in the first reservoir chamber in a state in which the printing apparatus is in a posture when in use, and A channel configured to form a channel through which color ink flows, the channel being formed at a second side of the storage container opposite the first side.
12. The printing apparatus of claim 11 wherein color ink flows within said channel toward said first printhead.
13. The printing apparatus of claim 11, further comprising a tube configured to connect the first printhead and the storage container, the tube being connected to an outlet portion of the storage container.
14. The printing apparatus of claim 11, wherein the first storage chamber is configured to communicate with outside air through the communication port.
15. The printing apparatus of claim 11, further comprising a canister cover configured to cover the injection port.
16. The printing apparatus of claim 11, wherein the injection port is formed at a top of the storage container.
17. The printing apparatus of claim 16, wherein a second slot is formed on the top portion, and the second slot is formed in close proximity to the injection port.
18. The printing apparatus of any of claims 11 to 17, further comprising a transport roller configured to transport the print medium in a first direction, The storage container is disposed downstream of the first printhead in the first direction.
19. The printing apparatus of any of claims 11 to 17, wherein the slot is not sealed by the sealing member.

Description

Printing apparatus and liquid storage container The present application is a divisional application of application number 202110861237.9, filed under the name of "printing apparatus and liquid storage container", whose application date is 2021, 7, 29. Technical Field The present invention relates to a printing apparatus and a liquid storage container. Background Printing apparatuses including a printhead for discharging liquid as typified by an inkjet printer are known. The liquid consumed by the printhead is stored in a liquid storage container. It is designed so that if the printing apparatus is in a posture when in use, liquid does not leak from the print head due to a head difference (HEAD DIFFERENCE) caused by the arrangement of the print head and the liquid storage container. However, depending on the state of transportation or packaging, the printing apparatus may be placed in a posture different from that at the time of use. For example, there may be a case where the printing apparatus is set in a posture in which the side of the printing apparatus is set on the upper side at the time of transportation. As a result, the liquid storage container may be located above the liquid discharge face of the printhead. If the liquid discharge face of the print head is not covered by the cap and the meniscus of the nozzle is broken due to adhesion of foreign matter, liquid may leak from the print head due to gravity. As a technique of suppressing liquid leakage caused by a change in the posture of the printing apparatus, japanese patent application laid-open No. 2017-177789 discloses a technique of reducing the amount of ink leakage by providing two storage chambers (ink chambers) for storing ink. The reservoir is partially sealed by a flexible membrane. In the configuration of the ink tank disclosed in japanese patent application laid-open No. 2017-177789, the film is located on the outer wall side of the printing apparatus. In this configuration, in the process of manufacturing the printing apparatus, the film may be damaged when the exterior member is introduced. In addition, in order for the user to confirm the remaining ink amount, a window portion through which the reservoir chamber of the ink tank can be visually recognized from the outside is generally formed on the outer wall of the printing apparatus. In the configuration disclosed in japanese patent application laid-open No. 2017-177789, the film faces the window portion and thus may be damaged due to foreign matter entering from the outside of the printing apparatus. Such damage may cause the membrane to rupture. Disclosure of Invention The present invention provides a technique for suppressing liquid leakage when a printing apparatus is set in a posture different from that at the time of use. According to an aspect of the present invention, there is provided a printing apparatus including a liquid storage container including a storage chamber configured to store liquid supplied to a printing device that prints an image by discharging the liquid, an outlet portion of the liquid, and a passage configured to connect the storage chamber and the outlet portion, wherein the liquid storage container includes a first side portion and a second side portion, the first side portion being located on a side where a printing area where printing is performed by the printing device, the second side portion being located on an opposite side to the first side portion, and the passage being formed on the second side portion. According to another aspect of the present invention, there is provided a printing apparatus including a first liquid storage container and a second liquid storage container each including a storage chamber configured to store liquid supplied to a printing device that performs printing by discharging the liquid, an outlet portion of the liquid, and a passage configured to connect the storage chamber and the outlet portion, wherein the first liquid storage container includes a first side portion and a second side portion, the first side portion being located on a side where a printing area is performed by the printing device, the second side portion being located on an opposite side of the first side portion, a passage of the first liquid storage container being formed on the second side portion, the second liquid storage container includes a third side portion and a fourth side portion, the fourth side portion being located on an opposite side of the third side portion, a passage of the second liquid storage container being formed on the fourth side portion, the first liquid storage container being located on the left and right sides of the printing apparatus in a left-right direction, the passage of the first liquid storage container being located on the left and right sides of the printing apparatus in the printing apparatus, the first liquid storage container being located on the right side of the printing apparatus in the left-right direction