Patent Application
20250042166
This application is based upon and claims the benefit of priority to Japanese Patent Application No. 2023-124420, filed on Jul. 31, 2023, Japanese Patent Application No. 2023-124422, filed on Jul. 31, 2023, Japanese Patent Application No. 2023-124421, filed on Jul. 31, 2023, Japanese Patent Application No. 2023-124427, filed on Jul. 31, 2023, Japanese Patent Application No. 2023-124423, filed on Jul. 31, 2023, Japanese Patent Application No. 2023-124428, filed on Jul. 31, 2023, European Patent Application No. 23209642.0, filed on Nov. 14, 2023, European Patent Application No. 23209645.3, filed on Nov. 14, 2023, European Patent Application No. 23209648.7, filed on Nov. 14, 2023, European Patent Application No. 23209668.5, filed on Nov. 14, 2023, European Patent Application No. 23209675.0, filed on Nov. 14, 2023, European Patent Application No. 23209682.6, filed on Nov. 14, 2023, Japanese Patent Application No. 2023-211881, filed on Dec. 15, 2023, Japanese Patent Application No. 2023-211882, filed on Dec. 15, 2023, Japanese Patent Application No. 2023-211883, filed on Dec. 15, 2023, Japanese Patent Application No. 2023-211884, filed on Dec. 15, 2023, Japanese Patent Application No. 2023-211885, filed on Dec. 15, 2023, and Japanese Patent Application No. 2023-211886, filed on Dec. 15, 2023. The entire disclosures of all of the above applications are incorporated herein by reference.
The present disclosure relates to an ink container that stores ink and an ink supply device.
A printing-fluid cartridge to be inserted into a printing-fluid consuming device has been proposed. A supply tube of the printing-fluid consuming device is to be inserted into a supply portion of the printing-fluid cartridge.
The ink container may include a first groove that extends from a front surface in a second direction. In such a configuration of the ink container, even if the ink container falls on the floor or the like, there is little possibility that the first groove is damaged and a safe guiding function of the first groove can be retained.
A printing-fluid cartridge to be inserted into a printing-fluid consuming device has been proposed. A supply tube of the printing-fluid consuming device is to be inserted into a supply portion of the printing-fluid cartridge. The printing-fluid cartridge is held in an attachment state by a lock surface being in contact with a lock portion. As the printing-fluid cartridge changes its posture between a first posture and a second posture, the lock surface comes into contact with or separates from the lock portion.
A force of a spring that biases a valve that opens and closes a supply portion may act on the printing-fluid cartridge to rotate the printing-fluid cartridge by being in contact with a supply tube while the locking surface of the printing-fluid cartridge and the locking portion are in contact. Such movement of the printing-fluid cartridge may apply a load to the supply tube connected to the printing-fluid cartridge, causing deformation. Therefore, it is desirable that the printing-fluid cartridge be positioned such that it does not move excessively in the attached state.
The present disclosure provides an ink container capable of accurately positioned when being attached to an attachment portion.
Hereinafter, embodiments of the present disclosure will be described with reference to the drawings as appropriate.
It should be noted that the embodiment described below is merely an example in which the present disclosure is embodied, and the embodiment can be appropriately changed without departing from the gist of the present disclosure.
In the following, an ink cartridge 30 is inserted into and removed from a cartridge case 110 in a horizontal direction (a direction orthogonal to the gravity direction).
Further, whenever appropriate, a frontward direction and a rearward direction may be collectively referred to as a front-rear direction. An upward direction and a downward direction may be collectively referred to as an up-down direction. A rightward direction and a leftward direction may be collectively referred to as a right-left direction.
The description will be made on the assumption that the front-rear direction and the right-left direction are horizontal directions.
Further, a vertical direction orthogonal to the front-rear direction is defined as the up-down direction.
A direction orthogonal to the up-down direction and the front-rear direction is defined as the right-left direction.
Note that an attached state in which the ink cartridge 30 is attached to the cartridge case 110 is a state in which the ink cartridge 30 has been inserted to an attachment position in the cartridge case 110 and is ready to be used with the printer 10.
The attachment position is a position at which a supply tube 102 provided in the cartridge case 110 is inserted into a supply port 34 provided in the ink cartridge 30 and is connected to the supply port 34.
Hereinafter, the posture of the ink cartridge 30 when the ink cartridge 30 is in the attached state and is ready to be used with the printer 10 is referred to as a usage posture or an upright posture.
Unless otherwise specified, when the positional relations between the components of the ink cartridge 30 are described with the terms “up”, “down”, “left”, “right”, “front”, and “rear” and when the orientations or directions of the components of the ink cartridge 30 are described with the terms “up”, “down”, “left”, “right”, “front”, and “rear”, such descriptions are made based on when the ink cartridge 30 is in the usage posture. Moreover, when the positions, orientations or directions of the ink cartridge 30 itself is described with the terms “up”, “down”, “left”, “right”, “front”, and “rear”, such descriptions are made based on when the ink cartridge 30 is in the usage posture. The forward direction is an example of a first direction. The rearward direction is an example of a second direction.
The ink cartridge 30 is inserted into the cartridge case 110 in the frontward direction, which direction may be referred to as an attachment direction. The ink cartridge 30 is removed from the cartridge case 110 in the rearward direction.
When it is described that a component of the ink cartridge 30 faces a certain direction, the direction in which the component faces is not strictly limited to that certain direction only. For example, when it is described that “a front surface faces frontward”, the front surface may face frontward and upward. A front surface of the ink cartridge 30 is a surface appearing in the front view shown in
As shown in
The printer 10 is an inkjet recording apparatus, for example, an inkjet printer that records an image by ejecting ink droplets from the recording head 21 onto a sheet on the basis of an inkjet recording method. The printer 10 includes the cartridge case 110. The cartridge case 110 is an example of an attachment portion.
The ink cartridge 30 is configured to be attached to the cartridge case 110. The ink cartridge 30 is an example of an ink container. The cartridge case 110 has an opening 112 at its rear end. The ink cartridge 30 is configured to be inserted frontward into the case 110 through the opening 112 and to be attached to the case 110 when the ink cartridge 30 reaches the attachment position. The ink cartridge 30 is configured to be detached and removed rearward from the case 110 through the opening 112. The opening 112 is covered by a cover 126 when the cover 126 is closed and is exposed to the outside of printer 10 when the cover 126 is opened.
The printer 10 is an example of an ink supply device. The ink cartridge 30 stores ink that can be used in the printer 10. The ink may be a liquid containing a coloring material such as a pigment or a processing liquid not containing a coloring material, but containing an additive for improving the quality of image formed by the coloring material. In a state where the ink cartridge 30 is completely attached to the cartridge case 110, that is, when the ink cartridge 30 is in the attached state, the ink cartridge 30 and the recording head 21 are connected to each other via the ink tube 20. The recording head 21 discharges the ink supplied from the ink cartridge 30 from a plurality of nozzles 29. Specifically, a head control board included in the recording head 21 selectively applies a driving voltage to a plurality of piezoelectric elements 29A provided corresponding to the plurality of nozzles 29. As a result, ink is selectively ejected from the nozzles 29. That is, the recording head 21 consumes the ink stored in the ink cartridge 30 attached to the cartridge case 110.
The printer 10 includes a paper feed tray 15, a paper feed roller 23, a pair of conveyance rollers 25, a platen 26, a pair of discharge rollers 27, and a paper discharge tray 16. The sheet feed roller 23 feeds a sheet on the sheet feed tray 15 toward the conveyance path 24. The sheet fed to the conveyance path 24 reaches the pair of conveyance rollers 25. The pair of conveyance rollers 25 conveys the sheet that has reached the pair of conveyance rollers 25 onto the platen 26. The recording head 21 selectively ejects ink onto the sheet passing over the platen 26. Thus, an image is recorded on the sheet. The sheet having passed through the platen 26 reaches the pair of discharge rollers 27. The pair of discharge rollers 27 discharges the sheet that has reached the pair of discharge rollers 27 to the discharge tray 16 positioned at the most downstream end of the conveyance path 24.
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The case body 101 has three partition walls 109 in its internal space. The three partition walls 109 are arranged at intervals in the left-right direction. The slot 108 is an example of an attachment space. The internal space of the case body 101 has four slots 108A, 108B, 108C, and 108D arranged in the left-right direction. The slot 108A is positioned on the rightmost side among the four slots 108A to 108D. The slot 108B is positioned to the left of the slot 108A. The slot 108C is positioned to the left of the slot 108B. The slot 108D is positioned on the left of the slot 108C and on the leftmost side among the four slots 108A to 108D.
The internal space of the case body 101 is partitioned into slots 108A, 108B, 108C, and 108D by the three partition walls 109 that partition the internal space of the case body 101 and by the inner surface of the case body 101. The partition wall 109 extends upward from the upper surface of the upper wall 172 of the cover wall 171. The three partition walls 109 are positioned at equal intervals in the left-right direction. The partition wall 109 has a flat plate shape extending in the up-down direction and the front-rear direction. The partition wall 109 extends from the front end to the rear end of the upper wall 172.
The case body 101 has a guide surface 161. The guide surface 161 is arranged in each of the slots 108A, 108B, 108C, and 108D. The guide surface 161 faces upward. The guide surface 161 is generally a semi-circumferential surface. When the ink cartridge 30 is attached to or detached from the case body 101, the guide surface 161 guides the ink cartridge 30 in the front-rear direction. The guide surface 161 supports the lower end of the ink cartridge 30 in the attached state where the ink cartridge 30 is attached to the case body 101.
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In each slot 108A, 108B, 108C, and 108D, the upper wall 172 has a groove 113 and a groove 114. The groove 113 and the groove 114 in each of the slots 108A, 108B, 108C, and 108D have a common shape. The groove 113 is positioned at the left end of each of the slots 108A, 108B, 108C, and 108D, and the groove 114 is positioned at the right end of each of the slots 108A, 108B, 108C, and 108D. Both the groove 113 and the groove 114 are recessed downward from the upper wall 172 and extend along the front-rear direction so as to be open in the rear wall 173. The ink cartridge 30 includes a pair of walls (described later) and each wall 71 is inserted into the corresponding one of the groove 113 and the groove 114.
In each of the slots 108A, 108B, 108C, and 108D, two protruding pieces 117 protruding upward from the upper wall 172 of the cover wall 171 and spaced apart from each other in the left-right direction are provided between the groove 113 and the groove 114 in the left-right direction. The upper wall 172 of the cover wall 171 has a through hole 140A that is continuous with a space between the two protruding pieces 117. The rear wall 173 of the cover wall 171 has a through hole 140B. The lower end of the through hole 140A and the upper end of the through hole 140B are continuous with each other.
A first key slot 115 is positioned between the two protruding pieces 117 in each of the slots 108A, 108B, 108C, and 108D. Specifically, the slot 108A has a first key slot 115A, the slot 108B has a first key slot 115B, the slot 108C has a first key slot 115C, and the slot 108D has a first key slot 115D. The first key slot 115 opens upward and rearward. A first key portion 77 (described later) of the ink cartridge 30 is insertable into the first key slot 115. The first key slots 115A, 115B, 115C, and 115D have different positions in the left-right direction with respect to the groove 113 and the groove 114. Specifically, the first key slot 115A is closer to the groove 113 than the center of the slot 108A between the groove 113 and the groove 114 in the left-right direction. The first key slot 115B is closer to the groove 114 in the slot 108B than the first key slot 115A is to the groove 114 in the slot 108A in the left-right direction. The first key slot 115C is closer to the groove 114 in the slot 108C than the first key slot 115B is to the groove 114 in the slot 108B in the left-right direction. The first key slot 115D is closer to the groove 114 in the slot 108D than the first key slot 115C is to the groove 114 in the slot 108C in the left-right direction.
In each slot 108A, 108B, 108C, and 108D, a rib 118 is positioned above the groove 113 and a rib 119 is positioned above the groove 114. The ribs 118 and 119 are examples of flat plate elements. At the slot 108A, the rib 118 protrudes from the inner surface of the right wall 129. At the slot 108B, the rib 118 protrudes from the partition wall 109 defining the right end of the slot 108B. At the slot 108C, the rib 118 protrudes from the partition wall 109 defining the right end of the slot 108C. At the slot 108D, the rib 118 protrudes from the partition wall 109 defining the right end of the slot 108C. At the slot 108A, the rib 119 protrudes from the partition wall 109 defining the left end of the slot 108A. At the slot 108B, the rib 119 protrudes from the partition wall 109 defining the left end of the slot 108B. At the slot 108C, the rib 119 protrudes from the partition wall 109 defining the left end of the slot 108C. At the slot 108D, the rib 119 protrudes from the inner surface of the left wall 128. The ribs 118 and 119 face each other in the left-right direction in the slot 108.
The supply tube 102 is positioned in the internal space of each of the slots 108A, 108B, 108C, and 108D. The supply tube 102 is an example of a pipe. The supply tube 102 is positioned below each of the first key slots 115A, 115B, 115C, 115D. The supply tube 102 has a hollow circular pipe shape. The supply tube 102 extends along the front-rear direction from the sub-tank 120 toward the internal space of the slot 108. A rear end of the supply tube 102 is opened. The leading end of the supply tube 102 is positioned in the inner space of each of the slots 108A, 108B, 108C, and 108D. Although not described in detail, a valve is disposed in the inner space of the supply tube 102. The valve opens and closes the opening of the supply tube 102. The supply tube 102 is connectable to the supply port 34 of the ink cartridge 30.
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A coil spring 133 extending along the front-rear direction is positioned between the ink receiving member 130 and the case body 101. The coil spring 133 urges, i.e., pulls the rear end portion 132 of the ink receiving member 130 frontward. The ink receiving member 130 is an example of a movable member. The coil spring 133 is an example of a second biasing member.
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In the state where the rear end portion 132 of the ink receiving member 130 is the closest to the lower surface of the supply tube 102, the ink receiving member 130 is positioned at a first position. In a state where the ink cartridge 30 is not attached to the supply tube 102, the ink receiving member 130 is in the closest state but not in contact with the lower surface of the supply tube 102.
After the ink cartridge 30 is removed from the case body 101, ink may remain on the rear end of the supply tube 102. Such ink moves to a lower portion of the rear end of the supply tube 102 due to gravity and thereafter drips to the rear end portion 132 of the ink receiving member 130 which is in the closest state to the lower surface of the supply tube 102. The received ink moves along the ink receiving member 130 from the rear end portion 132 toward the front end portion 131 away from the ink cartridge 30. Since the ink that remains on the rear end of the supply tube 102 is received by the rear end portion 132 of the ink receiving member 130, it is possible to reduce the possibility that the ink adheres to the lower wall of the case body 101.
When the ink receiving member 130 is at the first position, the ink receiving member 130 prevents the ink cartridge 30 from receiving the supply tube 102 in the frontward direction. That is, the pressing plate 134 is configured to operate the ink receiving member 130 which impedes the supply port 34 approaching the supply tube 102 when the pressing plate 134 is in the first position.
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The distance between a lower end and an upper end of the opening at the rear end of the second key slot 138 is greater than the distance between a lower end and an upper end of the opening at the front end of the second key slot 138. In the present embodiment, the distance between the lower end and the upper end of the opening of the second key slot 138 gradually decreases from the rear end of the opening toward the front end of the opening. Alternatively, the distance between the lower end and the upper end of the opening of the second key slot 138 may gradually increase and then gradually decrease from the rear end of the opening toward the front end of the opening.
The second key slots 138A, 138B, and 138C are respectively positioned to the left of the center of the slots 108A, 108B, and 108C in the left-right direction. The second key slot 138D is positioned to the right of the center of the slot 108D in the left-right direction. A second key portion 78 of the ink cartridge 30 may enter each of the second key slots 138A, 138B, 138C, and 138D.
A locking portion 139 is positioned in a space that defines the opening of each of the second key slots 138A, 138B, 138C, and 138D. The locking portion 139 is an example of a lock member. The locking portion 139 is a rod-shaped member extending in the left-right direction. The locking portion 139 comes into contact with a locking surface 87 of the ink cartridge 30 when the ink cartridge 30 is attached to the cartridge case 110 in the attached state.
The ink cartridge 30 is a container in which ink as a liquid is stored. As shown in
The ink cartridge 30 is inserted frontward into a corresponding one of the slots 108A, 108B, 108C, and 108D with the cover 32 facing the end surface 103 of the case body 101.
The container body 31 has a substantially thin flat cubic shape in which the length in the left-right direction is smaller than the length in the up-down direction and the length in the front-rear direction. The container body 31 includes a supply portion 33, a first key portion 77, and a second key portion 78. The container body 31 includes a front wall 40, a rear wall 41 opposed to the front wall 40 in the front-rear direction, a left wall 42 connecting the front wall 40 and the rear wall 41, a right wall 43 opposed to the left wall 42 in the left-right direction, an upper wall 44 connecting the front wall 40 and the rear wall 41, and a lower wall 45 opposed to the upper wall 44 in the up-down direction. The container body 31 has an upper surface 80 which is an outer surface of the upper wall 44. The outer surface of the front wall 40 faces frontward. The rear wall 41 has a rear surface 62 facing rearward. The outer surface of the left wall 42 faces leftward. The outer surface of the right wall 43 faces rightward. The outer surface of the upper wall 44, i.e., the upper surface 80 faces upward. The outer surface of the lower wall 45 faces downward.
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Two protrusions 52 are positioned on the front left wall 42F. Two protrusions 52 are positioned on the front right wall 43F. On the front left wall 42F, the two protrusions 52 are separated from each other in the up-down direction. On the front right wall 43F, the two protrusions 52 are separated from each other in the up-down direction. The protrusion 52 has a substantially rectangular shape in a side view. The protrusion 52 passes through a through hole 76 of the cover 32 described later.
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The supply portion 33 has a supply port 34 through which the ink flows out of the ink cartridge 30. The supply port 34 is positioned at the front end of the supply portion 33. The supply port 34 is circular when viewed from the front. The lower surface 47 includes a lower half of a circumferential surface having an axis in the front-rear direction. The lower surface 47 includes a first surface 48 having a cylindrical shape in the front-rear direction and a second surface 49 positioned rearward of the first surface 48 in the front-rear direction. The outer diameter of the supply portion 33 decreases from the first surface 48 toward the second surface 49.
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The seal member 35 is an annular member made of an elastic member, for example, rubber or the like, and is positioned in the supply port 34 and in the internal space of the supply portion 33. The supply port 34 is filled with the seal member 35, but ink in the internal space of the supply portion 33 can flow out to the outside of the ink cartridge 30 through a hole formed through the center of the seal member 35 in the front-rear direction, that is, ink in the internal space of the supply portion 33 still can flow out to the outside of the ink cartridge 30 through the supply port 34.
The valve 36 is movable in the front-rear direction in the internal space of the supply portion 33. When the valve 36 comes into contact with the seal member 35, the hole formed through the seal member 35 is closed or sealed, in other words, the supply port 34 is closed or sealed. That is, ink in the internal space of the supply portion 33 cannot flow out to the outside of the ink cartridge 30 through the hole formed through the seal member 35, in other words, cannot flow out to the outside of the ink cartridge 30 through the supply port 34.
The coil spring 37 biases the valve 36 toward the seal member 35 so that the valve 36 contacts the seal member 35. The coil spring 37 is an example of a first biasing member.
When the ink cartridge 30 is inserted into the cartridge case 110, the supply tube 102 enters the supply port 34. The outer circumferential surface of the supply tube 102 comes into contact with the inner circumferential surface, which defines the hole of the seal member 35, in a liquid-tight manner while the supply tube 102 elastically deforms the sealing member 35. When the rear end of the supply tube 102 passes through the sealing member 35 and enters the internal space of the supply portion 33, the rear end of the supply tube 102 comes into contact with the valve 36. When the ink cartridge 30 is further inserted into the cartridge case 110, the ink tube 102 pushes the valve 36 to move in the rearward direction against the biasing force of the coil spring 37.
When the valve 36 moves rearward, the internal space of the supply portion 33 and the internal space of the supply tube 102 communicate with each other, and the ink in the chamber 46 flows into the internal space of the supply tube 102 through the internal space of the supply portion 33. Although not illustrated in the drawings, ink flows from the internal space of the supply portion 33 through a hole formed in the rear end of the supply tube 102 to the internal space of the supply tube 102. As such, ink in the internal space of the supply portion 33 flows out to the outside of the ink cartridge 30 through the supply tube 102 positioned in the supply port 34, in other words, through the supply port 34.
The seal member 35 is in contact with the outer circumferential surface of the supply tube 102 so as not to leak the ink. The valve 36, which closes or seal the supply port 34 and the coil spring 37, are not necessarily provided. For example, in another embodiment, the supply port 34 may be blocked with a film or the like, and when the ink cartridge 30 is inserted into the cartridge case 110, the supply tube 102 breaks the film and the rear end of the supply tube 102 thereby enters the internal space of the supply portion 33 through the supply port 34. Alternatively, in yet another embodiment, the hole of the seal member 35 positioned in the supply port 34 may be closed due to the elasticity of the seal member 35 itself, and when the supply tube 102 is inserted, the hole is expanded by being pressed by the supply tube 102 and the rear end of the supply tube 102 thereby enters the internal space of the supply portion 33 through the supply port 34. In any case, ink in the internal space of the supply portion 33 flows out to the outside of the ink cartridge 30 through the supply tube 102 positioned in the supply port 34, in other words, through the supply port 34.
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The cover 32 has a substantially rectangular parallelepiped shape whose length in the left-right direction is smaller than a length in the up-down direction and a length in the front-rear direction of the container body 31. The cover 32 has a box shape having an opening facing rearward. The cover 32 is attached to the container body 31 so as to substantially cover the upper front wall 40U, the front left wall 42F, and the front right wall 43F.
The cover 32 includes a front wall 53, a left wall 54 extending rearward from a left end of the front wall 53, a right wall 55 opposed to the left wall 54 in the left-right direction, an upper wall 56 extending rearward from an upper end of the front wall 53, and a lower wall 57 opposed to the upper wall 56 in the up-down direction. The front wall 53, the left wall 54, the right wall 55, the upper wall 56, and the lower wall 57 define an internal space of the cover 32. The opening of the cover 32 is defined by rear ends of the front wall 53, the left wall 54, the right wall 55, the upper wall 56, and the lower wall 57. The front wall 53 is a part of the front wall of the ink cartridge 30. The left wall 54 is a part of a left wall of the ink cartridge 30. The right wall 55 is a part of the right wall of the ink cartridge 30. The upper wall 56 is a part of an upper wall of the ink cartridge 30. The lower wall 57 is a part of a lower wall of the ink cartridge 30. An outer surface of the front wall 53 is positioned forward of the supply port 34 in the front-rear direction. An outer surface of the left wall 54 extends rearward in the front-rear direction from the outer surface of the front wall 53. An outer surface of the right wall 55 extends rearward in the front-rear direction from the outer surface of the front wall 53. The outer surface of the front wall 53 is an example of a front surface. The outer surface of the left wall 54 is an example of a left surface. The outer surface of the right wall 55 is an example of a right surface. The outer surface of the upper wall 56 is an example of an upper surface.
The length of the cover 32 in the up-down direction is smaller than the length of the container body 31 in the up-down direction. The length of the cover 32 in the front-rear direction is smaller than the length of the container body 31 in the front-rear direction. The distance of the cover 32 in the left-right direction is slightly greater than the distance between the outer surface of the front left wall 42F and the outer surface of the front right wall 43F of the container body 31 in the left-right direction, and is substantially the same as the distance between the outer surface of the rear left wall 42R and the outer surface of the rear right wall 43R in the left-right direction.
The left wall 54 has two through holes 58 spaced apart in the up-down direction. The right wall 55 has two through holes 58 spaced apart in the up-down direction. The protrusions 52 on the front left wall 42F are positioned in the through holes 58 of the left wall 54, and the protrusions 52 on the front right wall 43F are positioned in the through holes 58 of the right wall 55. The through hole 58 has a substantially rectangular shape. Specifically, the length of each through hole 58 in the up-down direction is greater than the length thereof in the front-rear direction. The through hole 58 is sufficiently larger than the outer shape of the protrusion 52. That is, the length of each through hole 58 in the up-down direction is greater than the length of each protrusion 52 in the up-down direction. The length of each through hole 58 in the front-rear direction is greater than the length of each protrusion 52 in the front-rear direction.
The container body 31 and the cover 32 are assembled by inserting the protrusions 52 into the corresponding through holes 58. Since the through hole 58 is larger than the outer shape of the protrusion 52, the cover 32 is relatively movable in the up-down direction and the front-rear direction with respect to the container body 31 in a state where the container body 31 and the cover 32 are assembled. Since the through hole 58 is sufficiently larger than the outer shape of the protrusion 52, the cover 32 can move relative to the container body 31 not only in the up-down direction and the front-rear direction, but also in a direction in which the cover 32 rotates relative to the container body 31 along a plane extending in the up-down direction and the front-rear direction.
The cover 32 covers the upper front wall 40U of the container body 31 in the state in which the cover 32 is attached to the container body 31. The front wall 53 of the cover 32 is positioned frontward of the supply port 34. The supply port 34 is positioned below the lower wall 57 of the cover 32. The IC board 60 is positioned on the upper wall 56 of the cover 32. The IC board 60 is an example of an electrical interface. The IC board 60 extends in the front-rear direction and the left-right direction. The IC board 60 is positioned above the supply port 34. The IC board 60 includes a substrate formed of, for example, silicone or glass epoxy, an IC mounted on the substrate and three electrodes 61 mounted on the substrate.
Note that the IC does not appear in the drawings. Three electrodes 61 face upward. The IC board 60 may comprise a flexible substrate having flexibility. The upper surface of the electrode 61 is an example of a contact surface. The IC board 60 is bonded to the upper wall 56 of the cover 32 by, for example, a photocurable resin. The IC board 60 may be bonded to the cover 32 by an adhesive other than the photocurable resin, or may be attached to the cover 32 by fitting or the like other than bonding.
The electrodes 61 of the IC board 60 come into contact with the contacts 125 in the process in which the ink cartridge 30 is inserted into the cartridge case 110. In the attached state where the ink cartridge 30 is attached to the cartridge case 110, the IC board 60 is in contact with and electrically connected to the contacts 125. The IC is a semiconductor integrated circuit. Information related to the ink cartridge 30 is readably stored in the IC. The information related to the ink cartridge 30 is, for example, data indicating information such as a lot number, a manufacturing date, and an ink color. The electrode 61 is electrically connected to the IC. The electrode 61 extends in the front-rear direction. The electrodes 61 are arranged on the upper surface of the IC board 60 so as to be spaced apart from each other in the left-right direction. The electrode 61 is exposed on the upper surface of the IC board 60 so as to be electrically accessible.
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The cover 32 has walls 71 extending downward from both ends of the lower surface 70 in the left-right direction. The one wall 71 and the other wall 71 are spaced apart from each other in the left-right direction. The wall 71 is a plate-like member extending in the up-down direction and the front-rear direction and having a thickness in the left-right direction. The length of the wall 71 in the front-rear direction is greater than the length of the wall 71 in the left-right direction and the length of the wall 71 in the up-down direction. The length of the wall 71 in the up-down direction is greater than the length thereof in the left-right direction.
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In the left wall 54 of the cover 32, a groove 74 (also referred to as a first groove 74) extending in the front-rear direction is positioned above the wall 71. The first groove 74 is positioned leftward and upward of the first key portion 77 and extends in the front-rear direction. In the right wall 55 of the cover 32, a groove 74 (also referred to as a second groove 74) extending in the front-rear direction is positioned above the wall 71. The second groove 74 is positioned rightward and upward of the first key portion 77 and extends in the front-rear direction. The groove 74 is an example of a first groove and a second groove. A longitudinal direction of the groove 74 is the front-rear direction.
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The position of the cover 32 with respect to the case body 101 in the up-down direction is determined by the contact of the surface 74U and the surface 74L of one of the grooves 74 with the rib 118 and by the contact of the surface 74U and the surface 74L of one of the grooves 74 with the rib 119. The grooves 74 are positioned above the supply port 34 in the up-down direction. A part of the chamber 46 which is a space between the front left wall 42F and the front right wall 43F is positioned between the grooves (first groove and second groove) 74 in the left-right direction. The first groove 74 and the second groove 74 overlap each other in the left-right-direction. The IC board 60 is positioned above the grooves 74. The surface 74U is an example of a first surface and a third surface. The surface 74L is an example of a second surface and a fourth surface.
The outer surface of the front wall 53 of the cover 32 is a front surface 75. The front surface 75 is positioned frontward of the supply port 34. The front surface 75 has an upper front surface 75U positioned at an upper portion thereof and a lower front surface 75L positioned at a lower portion thereof. The upper end of the lower front surface 75L is continuous with the upper front surface 75U. The lower end of the lower front surface 75L is positioned rearward of the upper end of the lower front surface 75L, and the lower front surface 75L is inclined upward as the lower front surface 75L extends toward the front. The lower front surface 75L is a guide for guiding the rib 118 and the rib 119 into the groove 74.
Specifically, in the process in which the ink cartridge 30 is inserted into the case 110, the lower front surface 75L comes into contact with the front end of the rib 118 and the front end of the rib 119. In this configuration, the lower front surface 75L guides each of the rib 118 and the rib 119 to the groove 74. The upper front surface 75U of the front wall 53 of the cover 32 has a through hole 76. The valve 50 of the container body 31 is exposed to the outside through the through hole 76. The front end of the through hole 76 is positioned forward of the supply port 34 of the supply portion 33.
The lower surface 70 of the cover 32 has a first key portion 77. The first key portion 77 is positioned above the supply port 34 and below the upper surface of the electrode 61 of the IC board 60. The front end of the first key portion 77 is positioned forward of the front end of the electrode 61. The first key portion 77 is positioned below the through hole 76. In other words, the opening of the atmosphere opening passage 38 is positioned between the first key portion 77 and the electrode 61 in the up-down direction. The first key portion 77 is positioned at a front part of the ink cartridge 30. The first key portion 77 is an example of a second contact portion.
As shown in
In the present embodiment, the first key portion 77 has a plate shape in which the length in the front-rear direction is greater than the length in each of the left-right direction and the length in the up-down direction, however the shape of the first key portion 77 is not limited thereto. For example, the length of the first key portion 77 in the front-rear direction may be smaller than the length thereof in the up-down direction. The lower surface 77L is a position overlapping at least one of the electrodes 61 in the up-down direction. In other words, the lower surface 77L is positioned directly below at least one of the electrodes 61 in the up-down direction.
As shown in
Further, the front surface 77F of the first key portion 77 is positioned rearward of the front end of the front wall 53 of the cover 32. Thus, in a case where the ink cartridge 30 is dropped with the front wall 53 of the cover 32 facing downward, even when the first front surface 72 or the second front surface 73 of the wall 71 or the front end of the front wall 53 of the cover 32 collides with a floor or the like, the front surface 77F of the first key portion 77 does not collide with the floor or the like. Therefore, the first key portion 77 is less likely to be deformed by a direct impact. On a related note, as will be described later, the first key portion 77 functions as a key to ensure that the ink cartridge 30 is attached to the right slot 108. When the first key portion 77 is deformed, the first key portion 77 may not correctly function as a key.
As shown in
In this embodiment, the position of the first key portion 77 (77A, 77B, 77C, and 77D) in the left-right direction is different among the four ink cartridges 30 (30A, 30B, 30C, and 30D). Nevertheless, in another embodiment, the position of the first key portion 77 (77A, 77B, 77C, and 77D) in the left-right direction may be the same among the four ink cartridges 30 (30A, 30B, 30C, and 30D), but the shape of the first key portion 77 (77A, 77B, 77C, and 77D) may be different among the four ink cartridges 30 (30A, 30B, 30C, and 30D). In such a case, the position of the first key slots 115 (115A, 115B, 115C, and 115D) in the slots 108 (108A, 108B, 108C, and 108D) may be the same, but the shape of the first key slots 115 (115A, 115B, 115C, and 115D) in the slots 108 (108A, 108B, 108C, and 108D) may be different corresponding to the difference in shape of the first key portions 77 (77A, 77B, 77C, and 77D). As such, the mechanical characteristic, e.g., position or shape, of the first key portion 77 (77A, 77B, 77C, and 77D) is different among the four ink cartridges 30 (30A, 30B, 30C, and 30D). That is, the mechanical characteristic of the first key portion 77 (77A, 77B, 77C, and 77D) corresponds to the corresponding one of the ink cartridges 30 (30A, 30B, 30C, and 30D). That is, the first key portion 77 has a shape and/or position at the container body 31 which is associated with a corresponding first characteristic of the ink cartridge 30.
One example of the characteristic of the ink cartridge 30 is the characteristic of the ink stored in the chamber 46. In this embodiment, the position of the first key portion 77 in the left-right direction is different among the four ink cartridges 30 (30A, 30B, 30C, and 30D) depending on the characteristic of the ink stored in the chamber 46 The characteristics of the ink are, for example, the color and composition of the ink.
The cover 32 includes a third key portion 79. The third key portion 79 is defined by a recessed portion recessed from the left wall 54 of the cover 32, a recessed portion recessed from the right wall 55, a convex portion protruding leftward from the left wall 54, or a convex portion protruding rightward from the right wall 55.
In the present embodiment, the third key portion 79 includes a recessed portion that is recessed from the left wall 54 of the cover 32 and a recessed portion that is recessed from the right wall 55.
As shown in
The shape of the third key portion 79 of the ink cartridge 30 used in a certain sales area is different from the shape of the third key portion 79 of the ink cartridge 30 used in another sales area. For example, the third key portion 79 may be disposed only on one of the left and right sides, or the shape of the third key portion 79 opening frontward may be different depending on the contract type or the sales area.
On a related note, as will be described later, in the present embodiment, the third key portions 79 including the recessed portion on the left wall 54 of the cover 32 and the recessed portion on the right wall 55 matches with the fitting piece 123 and the fitting piece 122, respectively. In a case where the third key portion is different in position or shape, the presence or absence and the shape of each of the fitting piece 123 and the fitting piece 122 may change depending on the presence or absence and the shape of the corresponding third key portion 79.
As shown in
The rear surface 62 includes a first rear surface 63, a second rear surface 64, and a third rear surface 65. The second rear surface 64 is positioned on the left of the first rear surface 63. The third rear surface 65 is positioned on the right of the first rear surface 63. The first rear surface 63 is a flat surface orthogonal to the front-rear direction. The second rear surface 64 is a plane intersecting with the front-rear direction and the right-left direction. The right end of the second rear surface 64 is continuous with the first rear surface 63. The left end of the second rear surface 64 is positioned leftward and rearward of the first rear surface 63. The third rear surface 65 is a plane intersecting with the front-rear direction and the left-right direction. The left end of the third rear surface 65 is continuous with the first rear surface 63. The right end of the third rear surface 65 is positioned rightward and rearward of the first rear surface 63. The length of the first rear surface 63 in the left-right direction is constant in the up-down direction.
As shown in
The second lower wall 45B is an inclined wall inclined with respect to the front-rear direction. The second lower wall 45B is inclined with respect to the front-rear direction and the up-down direction such that an upper end of the second lower wall 45B is positioned rearward and upward of a lower end thereof. The lower end of the second lower wall 45B is continuous with the rear end of the lower surface 47 of the supply portion 33. The lower end of the second lower wall 45B is continuous with the rear end of the supply portion 33 in a position below the first lower wall 45A. The second lower wall 45B is shorter than the first lower wall 45A in the left-right direction.
Since the supply portion 33 is positioned below the first lower wall 45A, as shown in
The second rear surface 64 has a recess 66 near the upper end. The recess 66 is constituted by a space recessed forward from the second rear surface 64 and a surface defining the space. The third rear surface 65 has a recess 67 near the upper end. The recess 67 is constituted by a space recessed forward from the third rear surface 65 and a surface defining the space.
As shown in
Further, as shown in
As shown in
As shown in
The upper surface 80 of the container body 31 includes a first upper surface 81, a second upper surface 82, a third upper surface 83, an upper end surface 86, and the operation surface 68.
The first upper surface 81 is positioned at a front end of the upper surface 80.
As shown in
The second upper surface 82 is continuous with the rear end of the first upper surface 81. The rear end of the second upper surface 82 is positioned higher than the front end thereof. The second upper surface 82 has a surface 82A positioned at the center in the left-right direction, a surface 82B positioned on the left of the surface 82A, and a surface 82C positioned on the right of the surface 82A.
As shown in
The third upper surface 83 is continuous with the rear end of the surface 82C of the second upper surface 82. The third upper surface 83 is a plane orthogonal to the up-down direction. The third upper surface 83 is positioned above the first upper surface 81. A rear end of the third upper surface 83 is continuous with the operation surface 68. The third upper surface 83 has a contact surface 92. The contact surface 92 extends rearward from a lower end of a locking surface 87 of a second key portion 78 described later.
As shown in
When the protrusion 52 of the container body 31 is in contact with the upper end of the through hole 58 of the cover 32, the cover 32 is positioned at the lowest position with respect to the container body 31. In a state where the cover 32 is positioned at the lowest position with respect to the container body 31, the upper end of the second key portion 78 is positioned above the IC board 60.
The second key portion 78 has a first forward inclined surface 84A, a second forward inclined surface 84B, a left inclined surface 85A, a right inclined surface 85B, an upper end surface 86, and a locking surface 87. The first frontward inclined surface 84A is a flat surface and is inclined such that a distance with regard to the supply port 34 in the up-down direction gradually increases from a front end of the second key portion 78 toward a rear end of the second key portion 78. The first forward inclined surface 84A is continuous with the rear end of the surface 82B of the second upper surface 82.
The front end of the second forward inclined surface 84B is continuous with the rear end of the surface 82A of the second upper surface 82. The second forward inclined surface 84B extends leftward as the second forward inclined surface 84B extends rearward from the front end thereof. The rear end of the second forward inclined surface 84B is continuous with the upper end surface 86. The lower end of the second forward inclined surface 84B is continuous with the third upper surface 83. The left end of the second forward inclined surface 84B is continuous with the right end of the first forward inclined surface 84A. A boundary between the first forward inclined surface 84A and the second forward inclined surface 84B extends leftward from the front end toward the rear. An upper end of the boundary between the first forward inclined surface 84A and the second forward inclined surface 84B is continuous with the upper end surface 86.
The upper end surface 86 is a flat surface facing upward. An upper end of the locking surface 87 is continuous with a rear end of the upper end surface 86. In other words, the upper end surface 86 is positioned between the second forward inclined surface 84B and the locking surface 87 in the front-rear direction. The locking surface 87 is a flat surface facing rearward. In the attached state where the ink cartridge 30 is attached to the cartridge case 110, the locking surface 87 and the contact surface 92 are in contact with the locking portion 139 of the cartridge case 110.
The left inclined surface 85A is a flat surface inclined with respect to the left-right direction so as to extend upward from the left end toward the right end. The left inclined surface 85A is continuous with a left end of the first forward inclined surface 84A. A boundary between the left inclined surface 85A and the first forward inclined surface 84A extends rightward from the front end toward the rear end. A boundary between the left inclined surface 85A and the first forward inclined surface 84A is continuous with the lock surface 87.
The right inclined surface 85B is a flat surface that is inclined with respect to the left-right direction so as to extend upward from the right end toward the left end. The right inclined surface 85B is continuous with the right end of the second forward inclined surface 84B. A boundary between the right inclined surface 85B and the second forward inclined surface 84B extends leftward from the front end toward the rear end. A rear end of the boundary between the right inclined surface 85B and the second forward inclined surface 84B is continuous with the upper end surface 86. The rear end of the right inclined surface 85B is continuous with the locking surface 87.
Since the second key portion 78 has the first frontward inclined surface 84A, the second frontward inclined surface 84B, the left inclined surface 85A, and the right inclined surface 85B, the strength of the second key portion 78 is higher than in a case where the second key portion 78 has a surface extending in the up-down direction. Therefore, the second key portion 78 is not easily deformed by an impact from the right and left direction.
As shown in
As shown in
In this embodiment, the position of the second key portion 78 (78A, 78B, 78C, and 78D) in the left-right direction is different among the four ink cartridges 30 (30A, 30B, 30C, and 30D). Nevertheless, in another embodiment, the position of the second key portion 78 (78A, 78B, 78C, and 78D) in the left-right direction may be the same among the four ink cartridges 30 (30A, 30B, 30C, and 30D), but the shape of the second key portion 78 (78A, 78B, 78C, and 78D) may be different among the four ink cartridges 30 (30A, 30B, 30C, and 30D). In such a case, the position of the second key slots 138 (138A, 138B, 138C, and 138D) in the slots 108 (108A, 108B, 108C, and 108D) may be the same, but the shape of the second key slots 138 (138A, 138B, 138C, and 138D) in the slots 108 (108A, 108B, 108C, and 108D) may be different corresponding to the difference in shape of the second key portion 78 (78A, 78B, 78C, and 78D). As such, the mechanical characteristic, e.g., position or shape, of the second key portion 78 (78A, 78B, 78C, and 78D) is different among the four ink cartridges 30 (30A, 30B, 30C, and 30D). That is, the second key portion 78 has a shape and/or position at the cover 32 which is associated with a corresponding second characteristic of the ink cartridge 30.
The characteristic indicated by the second key portion 78 may be the same as or different from the characteristic indicated by the first key portion 77 or the third key portion 79. In the present embodiment, the characteristic of the ink cartridge 30 indicated by the second key portion 78 is the composition of the ink stored in the chamber 46. The position of the second key portion 78 on the second upper surface 82 in the left-right direction varies depending on the composition of the ink stored in the chamber 46. The composition of the ink means what kind of components the ink contains and/or how much amount of the components the ink contains. Examples of the components are a dye and a pigment. In this embodiment, the composition of the ink as the characteristic of the ink cartridge 30 means whether the ink contains a dye or a pigment. The composition of the ink is an example of the characteristic of the ink.
As shown in
As shown in
As shown in
As shown in
The ink cartridge 30A in
The position of the first key portion 77 in the left-right direction corresponds to the position of the first key slot 115 of the cartridge case 110. The first key portion 77A of the ink cartridge 30A, which is positioned on the rightmost side in
The positions in the left-right direction of the second key portions 78A, 78B, 78C, and 78D of the ink cartridges 30A, 30B, 30C, and 30D correspond to the positions of the respective second key slots 138 of the cartridge case 110. Each of the second key portions 78A, 78B, and 78C of the ink cartridges 30A, 30B, and 30C is positioned further leftward than the center of the second upper surface 82 in the left-right direction. The second key portion 78D of the ink cartridge 30D is positioned to the right of the center of the second upper surface 82 in the left-right direction. In the present embodiment, since the four ink cartridges 30 shown in
As shown in
The ink cartridge 30A storing magenta ink is positioned at the rightmost position in
As shown in
Therefore, when the ink cartridge 30A is further inserted frontward, as shown in
When this occurs, the second frontward inclined surface 84B of the second key portion 78A comes into contact with the locking portion 139, whereby a downward force is applied to the ink cartridge 30A. When the downward force is applied to the second forward inclined surface 84B of the second key portion 78A, the ink cartridge 30A rotates clockwise as shown in
Further, the first key portion 77A enters the first key slot 115A in a state where the supply portion 33 is in contact with the guide surface 161 of the case body 101 and the second forward inclined surface 84B of the second key portion 78A is in contact with the locking portion 139. Further, one of the pair of walls 71 enters the groove 113. The other one of the pair of walls 71 enters the groove 114. Further, the rib 118 enters one of the two grooves 74. The rib 119 enters the other one of the two grooves 74. One of the pair of walls 71 enters the groove 113, and the other enters the groove 114, whereby the cover 32 is guided forward.
When the rib 118 enters one of the two grooves 74 and the rib 119 enters the other one of the two grooves 74, the cover 32 is guided forward and positioned with respect to the cartridge case 110 in the up-down direction. The second front surface 73 of the one of the pair of walls 71 moves frontward while being in contact with the lower surface of the groove 113 and the second front surface 73 of the other one of the pair of walls 71 moves frontward while being in contact with the lower surface of the groove 114, whereby one of the walls 71 is guided into the groove 113 and the other is guided into the groove 114 in the up-down direction. Further, when the first front surface 72 of one of the walls 71 or the lower front surface 75L of the cover 32 comes in contact with the rib 118 as the ink cartridge 30A moves frontward, the rib 118 is guided into the groove 74 in the up-down direction. When the first front surface 72 of the other one of the walls 71 or the lower front surface 75L of the cover 32 comes in contact with the rib 119 as the ink cartridge 30A moves frontward, the rib 119 is guided into the groove 74 in the up-down direction.
In addition, when the first key portion 77A of the ink cartridge 30A enters the first key slot 115A, the side surfaces 77S of the first key portion 77A shown in
As shown in
The pressing plate 134 moves downward against the urging force of the coil spring 133. When the pressing plate 134 moves downward, the ink receiving member 130 moves from the first position shown in
When the ink receiving member 130 is in the second position, the supply port 34 is connected to the supply tube 102 as the ink cartridge 30A moves forward. The supply tube 102 pushes the valve 36, and the valve 36 moves rearward against the biasing force of the coil spring 37. The outer peripheral surface of the supply tube 102 connected to the supply portion 33 is in contact with the seal member 35 so as not to leak the ink.
As shown in
Further, the electrodes 61 of the IC board 60 comes into contact with the contacts 125 and are electrically connected to the contacts 125. Further, the locking surface 87 of the second key portion 78A is positioned frontward of the locking portion 139. The contact surface 92 is positioned directly below the locking portion 139.
The urging force of the coil springs 37 and 51 may rotate the container body 31 about the axis extending in the left-right direction. When the container body 31 rotates, a portion of the container body 31, e.g., protrusions 52 of the container body 31, may contact the cover 32, e.g., may contact edges of the through holes 76 of the cover 32, and therefore the cover 32 may rotate along with the container body. Nevertheless, even if the urging force of the coil springs 37 and 51 indirectly causes the cover 32 to rotate about the axis extending in the left-right direction like this, the ribs 118 and 119 that have entered the grooves 74 come into contact with at least one of the surface 74U and the surface 74L, whereby the rotation of the cover 32 is also restricted.
The contacts 125 are elastically deformable like a leaf spring, the contacts 125 apply a downward contact pressure to the electrodes 61 when the electrodes 61 contact the contacts 125. Further, the biasing force of the coil spring 133 indirectly acting upward on the cover 32. Although the contacts 125 apply the downward contact pressure to the electrodes 61 and the coil spring 133 applies the upward pressure to the first key portion 77A, the surface 74L or 74U of the grooves 74 absorbs the upward or downward pressure by the rib 118 and the rib 119 coming into contact with the surface 74L or 74U of the grooves 74. Thus, the force acting upward to the cover 32 and the force acting downward to the cover 32 are balanced.
Further, as shown in
As a result, a force acts on the cover 32 to rotate the cover 32 about a rotation axis extending in the left-right direction such that the rear end side of the cover 32 moves more upward than the front end side thereof.
On the other hand, as shown in
As shown in
In the state shown in
When the ink cartridge 30A rotates so that the rear end side moves upward, the locking surface 87 of the second key portion 78A and the locking portion 139 face each other in the front-rear direction. When the user removes his/her fingers from the ink cartridge 30A, the ink cartridge 30A is moved rearward by the urging forces of the coil spring 37 and the coil spring 51, and the locking surface 87 comes into contact with the locking portion 139 as shown in
As a result, the container body 31 of the ink cartridge 30A is positioned in the up-down direction with respect to the cartridge case 110. In other words, the position of the ink cartridge 30A with respect to the cartridge case 110 in the up-down direction is determined.
In the attached state where the ink cartridge 30A is held in the cartridge case 110, the internal space, i.e., the chamber 46 of the ink cartridge 30A communicates with the atmosphere through the atmosphere opening passage 38. As a result, the ink in the chamber 46 flows into the internal space of the supply tube 102 through the internal space of the supply portion 33.
In addition, although the ink cartridge 30A is urged rearward by the coil spring 37 and the coil spring 51, the locking surface 87 of the ink cartridge 30A and the locking portion 139 of the cartridge case 110 come into contact with each other, and thus the rearward movement of the ink cartridge 30A is suppressed. As a result, the ink cartridge 30A is held in the cartridge case 110.
In addition, in the attached state where the ink cartridge 30A is held in the cartridge case 110, the electrodes 61 of the IC board 60 are in contact with the contacts 125. Further, the electrodes 61 are electrically connected to the contacts 125 so that the IC can communicate with the control unit of the printer 10 via the electrodes 61 and the contacts 125.
It is assumed that the ink cartridge 30A is erroneously inserted into the slot 108B of the cartridge case 110 shown in
It is assumed that an ink cartridge 30 having the first key portion 77 at the same position as the ink cartridge 30A and the second key portion 78 at the same position as the ink cartridge 30D is inserted into the rightmost slot 108A of the cartridge case 110 shown in
Next, the movement of the ink cartridge 30A, which is in the attached state where the ink cartridge 30A attached to the cartridge case 110, is detached and removed from the cartridge case 110 will be described.
As shown in
In the attached state, the convex portion 59 of the ink cartridge 30A is positioned in the space 162 of the case body 101. As the ink cartridge 30A moves rearward in the slot 108A, the convex portion 59 also moves rearward in the space 162, and the convex portion 59 comes into contact with the front end of the guide surface 161. As a result, the rearward movement of the ink cartridge 30A is restricted, and as shown in
Further, as shown in
Since the surface 74U of the groove 74 comes into contact with each of the ribs 118 and 119, the cover 32 is uniformly positioned in the downward direction.
When the surface 74L of the groove 74 comes into contact with each of the ribs 118 and 119, the cover 32 is prevented from rotating about the rotation axis along the right-left direction with respect to the upward direction. Thus, the position of the cover 32 can be determined.
The position of the cover 32 is determined independently of the container body 31.
Since the surface 74U and the surface 74L are located in the grooves 74, the surface 74U and the surface 74L are less likely to be damaged even if the ink cartridge 30 falls on the floor or the like.
Since the groove 74 is located above the supply port 34, there is little possibility that the ink adheres to the groove 74.
A part of the chamber 46 is positioned between the two grooves 74 in the left-right direction. Therefore, as compared with a case where the chamber 46 is not located between the two grooves 74 in the left-right direction, the ratio of the volume of the chamber 46 to the volume of the outer shape of the ink cartridge 30 is increased, so that the ink storage efficiency is improved.
Since the IC board 60 is positioned on the upper wall 56 of the cover 32, the cover 32 is positioned against the load applied from the contacts 125 to the IC board 60 by the side walls 74U of the grooves 74 being contact with the ribs 118 and 119.
In the usage posture, even when a rotating force is applied to the cover 32 via the container body 31 by the biasing force of the valves 36, 50 around the rotation axis along the left-right direction, the rotation of the cover 32 is suppressed by the contact between the grooves 74 and the ribs 118 and 119.
Since the groove 74 is located above the supply port 34 in the up-down direction, there is little possibility that the ink adheres to the surface 74U and the surface 74L of the groove 74.
Against the upward load applied to the first key portion 77 by the coil spring 133, the surface 74L of the groove 74 is brought into contact with the ribs 118 and 119, whereby the cover 32 is positioned.
In the above-described embodiment, the first key portion 77 extends rearward from the lower surface 70 of the cover 32. Alternatively, as shown in
Further, the first key portion 177 may protrude in the left-right direction from one or both of the right wall 55 and the left wall 54 at positions other than the positions where the third key portion 79 is provided in the cover 32.
Further, as shown in
In the above-described embodiment, the first key portion 77 has a convex shape, and the first key slot 115 has a concave shape. However, the relationship between the mechanical characteristics of the first key portion 77 and the first key slot 115 may be reversed. That is, the concave shape is another example of the first key portion, and the convex shape is another example of the first receiving portion. Similarly, the shapes of the second key portion and the second receiving portion (second key slot 138) may be reversed as explained for the first key portion and the first receiving portion (first key slot 115). In addition, the number of first key portions 277 is not limited to one and may be two or more.
In the above-described embodiment, the length of the first rear surface 63 in the left-right direction is constant in the up-down direction. Alternatively, as shown in
In the above-described embodiment, the ink cartridge 30 includes the container body 31 and the cover 32. Alternatively, as shown in
The first key portion 77, the second key portion 78, and the IC board 60 are positioned in the container 431.
The container 431 integrally including the surface provided with the first key portion 77 and the IC substrate 60 and the internal space for storing the ink is another example of the main body of the ink container. In this case, the groove 74, the first key portion 77, the IC board 60, and the like located in the cover 32 are located in an integrated molded product.
Since the groove 74 is positioned away from the locking surface 87 in the front direction, the integrated ink cartridge 30 is accurately positioned in the up-down direction. Accordingly, since an excessive load is not applied to the supply pipe 102, which is inserted into the supply port 34, deformation of the supply pipe 102 is suppressed.
In the above-described embodiment, the atmosphere opening passage 38 is positioned on the upper front wall 40U of the container body 31, however the atmosphere opening passage 38 may be positioned on a wall other than the front wall 40 of the container body 31, for example, on the upper wall 44.
In the above-described embodiment, the pressing plate 134 and the ink receiving member 130 are arranged in the cartridge case 110. However, both members may also be omitted. In other words, the first key portion 77 may realize only the function of identifying the characteristic of the ink cartridge 30.
Further, the second key portion 78 may not have the locking surface 87. In this case, the valve 36 and the coil spring 37 may not be provided, and the hole of the seal member 35 positioned in the supply port 34 may be closed due to the elasticity of the seal member 35 itself. When the supply tube 102 is inserted, the hole is expanded by being pressed by the supply tube 102 and the rear end of the supply tube 102 thereby enters the internal space of the supply portion 33 through the supply port 34. The outer circumferential surface of the supply tube 102 comes into contact with the inner circumferential surface, while the supply tube 102 elastically deforms the sealing member 35. This elastic force may hold the ink cartridge 30 in the cartridge case 110 against the biasing force of the coil spring 51 without having the locking surface 87. In other words, the second key portion 78 may realize only the function of identifying the characteristic of the ink cartridge 30.
In the above-described embodiment, the ink cartridge 30 is shown as an example of the ink container. However, the ink container may not be a cartridge attached to the printer 10, but may be a bottle for replenishing ink to a tank or the like of the printer.
In the above embodiments or modifications, the ink supply portion 33 includes a supply port 34 defining a front end portion thereof and configured to receive a supply tube 20 (ink tube) provided in the slot 108 (attachment space). In the supply portion 33 there may be arranged a seal member 35, a valve 36 and a coil spring 37. The coil spring 37 may bias the valve 36 toward the seal member 35 to seal the chamber 40 in the cartridge container body 31 or main body 431. However, instead of the seal member 35, a valve 36 and a coil spring 37, other means to seal the chamber, in which ink may be stored, from the outside may be provided, such as an elastic plug, a film or the like, which may be pierced by the supply tube 20, e.g., when formed as a needle.
In the above embodiments or modifications, the supply portion 33 is a cylindrical member and has an outer peripheral surface extending rearward from the supply port 34. The outer peripheral surface is a curved surface curved in a circumferential direction with the front-rear direction as an axis. However, according to modifications, the outer peripheral surface of the supply portion 33 may also comprise multiple flat surfaces arranged adjacent each other. Also, the curved surface may just be provided on a lower section of the peripheral surface of the supply portion in the up-down-direction. Furthermore, the supply portion 33 may be arranged to have an appearance more or less integrated into a parallelepiped shape of the container body 31 or the main body 431.
In the above embodiments or modifications, the supply port 34 is circular when viewed from the front. However, according to modifications, the supply port 34 may have a shape other than a circular shape when viewed from the front. The supply port 34 may have any shape as long as it has a through hole into which the supply tube 102 can be inserted, and the through hole may be sealed by means to seal the chamber, in which ink may be stored, from the outside.”
In the above embodiments or modifications, the first key portion 77 and the second key portion 78 are each associated with a first and second characteristic of the ink cartridge, which are described to pertain to ink color and ink composition (for example dye or pigment), respectively. However, the specific characteristics of the ink cartridge may also be vice versa, i.e., the first characteristic may be ink composition and the second characteristic maybe ink color. Also, the first and second characteristics may be different from the above examples, such as sales area or contract type (in the embodiment associate with the third key portion), or still further characteristics. Still further, the concrete characteristics are not bound to the specific embodiments shown in the figures.
In the above embodiments or modifications, the first key portion 77 is shown as having a plate shape extending from its front surface 77F in the rear direction up until the sub-front wall 88. However, the first key portion may also be discontinuous (e.g., separate, not connected, and/or spaced away) or even continuous (e.g., integrally formed) with the sub-front wall 88, or there may be no sub-front wall 88 (omitted).
Furthermore, the plate shape can be replaced with a web extending from the sub-front wall 88 of the cover 32, or from the front wall 40 of the container body 31, or the main body 431, respectively, in the front-rear-direction and having the lower surface 77L. Additionally or alternatively, a further web extending in the up-down direction may be provided and having the front surface 77F. Both webs are connected with each other and with the respective sub-front wall 88 (if present) and the lower wall 70, respectively. In other words, such modified first key portion 77 may have a hollow shape or the like.
Additionally or alternatively, the first key portion 77 having the lower surface 77L may extend from the front wall 40 only, but not from the lower wall 70. In case of the main body of the cartridge 30 comprising two members, such as for example container body 31 and cover 32, the first key portion 77 may then be integral with the container body 31.
Also, in another embodiment, the first key portion 77 may itself include a movable mechanism. When the ink cartridge in inserted into the slot 108, a first contact portion of the movable mechanism contacts a portion of the slot 108 of the cartridge case 110, and the resulting urging force onto the contact portion is translated into a downward movement of a second contact portion of the movable mechanism, which includes the lower surface 77L, and which then presses down the pressing plate 134. The movable mechanism may include a resilient member that holds the first contact portion and the second contact portion in place before the contact is achieved during insertion of the cartridge.
In a more refined embodiment, the first key portion 77 may itself include a modified movable mechanism, in which a rotatable lever is provided at the ink cartridge, which, during insertion, firmly contacts the pressing plate by its contact portion, and during further insertion of the ink cartridge 30 rotates pressing the pressing plate 134 further down via its contact portion. The movable mechanism may also be a rotatable wheel, which during insertion “rolls” over the pressing plate 134 thereby pressing it down and also optionally enters the respective receiving portion 115A, 115B 115C or 115D, provided in the slot 108 in the left-right direction (if the position and shape of the wheel fits or matches the respective receiving portion).
Furthermore, in the above embodiments or modifications, the second key portion is described as having a ramp shape, via surfaces 84A, 84B, with laterally inclined surfaces 85A, 85B. However, according to modified embodiments, the second key portion may also just be formed of a ramp-shaped plate extending in the front-rear-direction and the up-down direction, thus having a thin inclined ramp surface and optionally having a thin locking surface facing a direction opposite the insertion direction. The thickness of that plate corresponds to the width of the second key portion in such case. In another modification, the second key portion 78 has the surface 85A, 85B, which are, however, not inclined but extend in the up-down-direction thus approaching each other when viewed towards the rear direction.
Still further, it is noted that when it is described herein that the first or second key portions and the first or second or receiving portions fit or match with each other, it does not necessarily mean the shapes and/or position, or cross sections in a plane perpendicular to the direction of movement, are exactly complementary with each other. These key portions may rather be formed as protrusions which may deviate in shape and cross section from the shape and cross section of the hollow spaces defined by the respective receiving portions. Modified embodiments comprising such key portions are encompassed by the appended claims.
Nevertheless, the fitting and matching function described above requires at least, that the first key portions be positioned and shaped to be accommodated in the first receiving portions and the second key portions be positioned and shaped to be accommodated in the second receiving portions, respectively.
Moreover, it is noted that the specific structure of the first and second key portions 77, 78 shown in the above embodiments may also be realized in cartridges (not shown), in which, for example, the rear surface 62 is simply flat and does not have the second and third inclined surfaces 64, 65, and/or the lower wall 45 has the first and second lower walls 45A, 45B including the specific structure shown. The rear surface 62 may also have a convex rounded or even any other shape.
Furthermore, the pair of walls 71 may be omitted in further modified embodiments, or the shape of the walls 71 may be arranged differently. For example, the first and second front surfaces 72, 73 may not be rounded but define a rectangular or tapered profile. Additionally or alternatively, the walls 71 may not extend from the lower wall 70 but from the front wall 40 of the container body 31 or the main body 431. According to a further modification, just one of the two walls 71 is provided, for example the one on the left wall 54 or the one on the right wall 55.
Still further, the grooves 74 are described in the embodiment or the respective modifications as having an upwardly facing lower surface 74L, a downwardly facing upper surface 74U and a (bottom) surface 74M connecting surfaces 74L, 74U. However, according to modified embodiments, there may be present only the bottom surface 74M and the downwardly facing upper surface 74U, or only bottom surface 74M and the upwardly facing lower surface 74L. If there is neither a downwardly facing upper surface 74U nor an upwardly facing lower surface 74L, there may also be no provided groove 74 at all, even if the first and second key portions 77, 78 are present. In a further modification, there is a groove 74 only on one side of the cartridge 30, e.g., the left wall 54 side, but not on the other side, e.g., the right wall 55 side, or vice versa. In a still further modification, there is only an upwardly facing lower surface 74L formed on one side, e.g., left wall 54 side, and only formed a downwardly facing upper surface 74U on the other side, e.g., the right wall 55 side, or vice versa, but no opposing surfaces 74U, 74L of a groove 74, respectively.
According to a further modification, the groove or grooves 74 may not have a U-shaped profile but for example a V-shaped profile having opposite surfaces 74L, 74U, which each face each other with slightly inclined directions with respect to the up-down-direction. Any other profile is possible as well. Also, the flat (bottom) surface 74M connecting surfaces 74L, 74U may be omitted or replaced with a rounded, concave or even convex bottom surface 74M connecting the opposite surface 74L, 74U. If the flat (bottom) surface 74M connecting surfaces 74L, 74U is omitted, the groove 74, or the grooves 74, are formed by an aperture extending in the left wall 54 and/or the right wall 55 in the front rear direction.
In the embodiment shown in the
In the embodiment, the second key portion 78 is described to be integrally formed on the upper wall 44. According to modifications, however, the second portion may also be formed as a separate part on or in the upper wall 44. In a further modification, the second portion may be resiliently retractable in a vertical or inclined direction. For example, during insertion, the second key portion may be pushed down by the locking portion 139 (e.g., without rotation of the container body 31 in
Thereby, the second key portion may for example be spring-biased in an upward direction. Once the locking portion 139 has passed the inclined surface 84B, the second key portion moves upwards again by action of its spring force and snaps into the second receiving portion (second key slot 138), if it fits or matches thereto. At the same time, the locking surface 87 comes into contact with locking portion 139. The cartridge is then firmly held in place in the slot 108.
Depending on the (steeper) inclination of the locking surface 87, the cartridge may afterwards, e.g., after consumption of ink, be removed from the slot 108 by applying a somewhat larger force such as to overcome friction between the locking portion 139 and the locking surface 87. In that case, the second key portion is retracted again during removal. Note, that in case the second key portion does not match the second key slot 138 during insertion, the lock surface 87 cannot be brought in contact with the locking portion 139 and the cartridge is not held in position, so that the user recognizes that the cartridge 30 was inserted into the wrong slot 108.
In the above embodiment or its modifications, the third key portion 79 is described as a concave portion formed within the left wall 54 and the right wall 55, respectively. However, according to a further modification of the cartridge 30, the cover 32 may be formed having a thickness between the left wall 54 and the right wall 55 without a concave recess such that it fits between the fitting pieces 122, 123. Such modification is an embodiment of the cartridge 30, where a third portion is omitted. However, it is also possible that a concave recess is formed on only one side, e.g., only in the left wall 54 or in the right wall 55 but not on the other side.
In the above embodiments shown in
According to one aspect, an ink container is provided which is configured to be inserted into an attachment space in a first direction. The ink container comprises: a main body that includes a chamber configured to store ink, and a supply port configured to receive a supply tube provided in the attachment space for retrieving the ink from the chamber, the supply port facing in the first direction.
The main body further includes: a front surface positioned in the first direction from the supply port, a left surface that extends from the front surface in a second direction opposite to the first direction, and a right surface that extends from the front surface in the second direction. The main body further has a first groove that opens in the front surface and the left surface and extends in the second direction from the front surface, and a second groove that opens in the front surface and the right surface and extends in the second direction from the front surface. The first groove includes a first surface and a second surface facing with each other in an up-down direction, and the second groove includes a third surface and a fourth surface facing with each other in the up-down direction.
By the first surface and the third surface, the ink container, or a member thereof, can be firmly positioned in an attachment space while being suppressed from rotating around a rotation axis along in the left-right direction with respect to the downward direction. By the second surface and the fourth surface, the ink container, or a member thereof, can be firmly positioned while being suppressed from rotating around the rotation axis along in the left-right direction with respect to the upward direction.
Since the first surface and the second surface are located in the first groove, and the third surface and the fourth surface are located in the second groove, even if the ink container falls on the floor or the like, there is little possibility that the respective surfaces are damaged and a safe guiding function of the grooves can be retained.
According to a further embodiment of the ink container, the first groove and the second groove are positioned above the supply port in the up-down direction. In such a case, the ink is less likely to adhere to each surface of the first groove and the second groove, and the guiding function is further retained.
According to a further embodiment of the ink container, a part of the chamber is positioned between the first groove and the second groove. Additionally or alternatively, the first groove and the second groove overlap each other in a left-right-direction perpendicular to the up-down-direction and the first direction. Due to such overall structure, since the ratio of the volume of the chamber to the volume of the outer shape of the main body is increased, the ink storage efficiency is improved.
According to a further embodiment of the ink container, the main body further includes an upper surface which is an outer surface of an upper wall. The electrical interface is positioned on the upper surface of the main body and above of the first groove and the second groove. The main body is thus firmly positioned in the up-down direction by the first surface and the third surface with respect to a load applied to the electrical interface, e.g., by a resilient contact spring.
According to a further embodiment of the ink container, the main body further includes: a first member that includes the chamber and the supply port, and a second member that includes the front surface, the left surface, and the right surface. The second member is attached to the first member. With the first surface and the third surface, the second member can be positioned uniformly with respect to the downward direction and independently of the first member. According to specific embodiments explained below, the first member may be slightly rotatable with respect to the second member in a limited range. Also, by the second surface and the fourth surface, the second member can be positioned uniformly with respect to the upward direction and independently of the first member.
According to a further embodiment of the ink container, the main body further includes: a valve configured to open and close the supply port, and a bias member configured to bias the valve in the first direction. Even when the valve moves during use and a rotating force is applied to the main body by the biasing force of the biasing member, the rotation of the main body, or of a member thereof, is suppressed by the positioning by the first groove and the second groove.
According to another aspect of the disclosure an ink supply device comprises an attachment portion that includes an attachment space, and an ink container according to one of above aspects and embodiments insertable into the attachment space. Thereby, the attachment portion includes a lock member configured to suppress movement of the ink container inserted in the attachment portion in a second direction opposite to the first direction, a tube that is positioned at a different position in an up-down direction from the lock member, and a pair of flat plate members that extends in the second direction and which is separated from each other in a left-right direction. Further, the ink container further includes a first contact portion configured to contact the lock member in the second direction.
In view of such configuration, the ink container positioned in the attachment space can be applied with a force rotating it around the first contact portion by the urging force of the bias member of the ink container, while the pair of flat plate members are configured to enter the first groove a well as the second groove. Once the pair of flat plate members have entered into the first groove and the second groove, respectively, the pair of flat plate members come into contact with the first surface, the second surface, the third surface, or the fourth surface of the grooves of the ink container, whereby the rotation of the main body is suppressed. Thereby, first groove and the second groove may be positioned away from the first contact portion in the first direction, such that the main body is accurately positioned in the up-down direction. Accordingly, since an excessive load is not applied to the tube inserted into the supply port, deformation or the like of the tube is suppressed.
According to a further embodiment of the ink supply device, the main body of the ink container further includes a second contact portion positioned below the first groove and the second groove and above the supply port, in the up-down-direction, respectively. Moreover, the attachment portion further includes a moveable member configured to move downward in response to the second contact portion contacting the moveable member from above, and a second bias member configured to bias the moveable member upward. As a consequence, the main body is firmly positioned by the second surface and the fourth surface with respect to the upward load applied to the second contact portion by the second biasing member.
According to a further embodiment of the ink supply device based on the previous embodiment, the moveable member is configured to move between a first position and a second position, wherein the moveable member, at the first position, prevents the supply port from receiving the tube in the first direction, and the moveable member, in the second position, allows the supply port to receive the tube in the first direction. Due to such configuration, it becomes possible to implement an ink receiving mechanism that receives ink from a supply tube when a supply port of an ink container is going to be connected or disconnected from the supply tube, wherein the ink receiving mechanism is moved by the movable member. When the ink receiving mechanism is implemented and is arranged to receive dripping ink from the supply tube, it is in a closest state to the supply tube. In this situation, an ink container is impeded to approach the supply tube due to the ink receiving mechanism.
According to a further embodiment of the ink supply device based on the previous embodiment, the moveable member is configured to operate a lever which impedes a supply port of the ink container approaching the tube when the moveable member is in the first position. Here, the above mentioned ink receiving mechanism is realized by a lever, which allows a very simple structure.
According to the present disclosure, the ink container attached to the attachment portion is accurately positioned.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2023-124420 | Jul 2023 | JP | national |
| 2023-124421 | Jul 2023 | JP | national |
| 2023-124422 | Jul 2023 | JP | national |
| 2023-124423 | Jul 2023 | JP | national |
| 2023-124427 | Jul 2023 | JP | national |
| 2023-124428 | Jul 2023 | JP | national |
| 20209668.5 | Nov 2023 | EP | regional |
| 23209642.0 | Nov 2023 | EP | regional |
| 23209645.3 | Nov 2023 | EP | regional |
| 23209648.7 | Nov 2023 | EP | regional |
| 23209675.0 | Nov 2023 | EP | regional |
| 23209682.6 | Nov 2023 | EP | regional |
| 2023-211881 | Dec 2023 | JP | national |
| 2023-211882 | Dec 2023 | JP | national |
| 2023-211883 | Dec 2023 | JP | national |
| 2023-211884 | Dec 2023 | JP | national |
| 2023-211885 | Dec 2023 | JP | national |
| 2023-211886 | Dec 2023 | JP | national |
