TW201932314A - Cartridge - Google Patents

Abstract

Provided is a technique with which it is possible for contact between a device side terminal and a contacting portion to be maintained appropriately. In this cartridge: a central axis of a central liquid supply port is positioned in a zone, in the X direction, in which a projecting surface portion is positioned; a central axis of a liquid supply port on the -X direction side of the central liquid supply port is positioned in a zone, in the X direction, in which a first surface portion is positioned; and a central axis of a liquid supply port on the +X direction side of the central liquid supply port is positioned in a zone, in the X direction, in which a second surface portion is positioned.

Description

Card

The present invention relates to the technology of cassettes.

Conventionally, there has been known a technique of supplying ink to a printer using two types of cassettes (for example, Patent Documents 1 to 5). One of the two types of cassettes contains one type of ink (for example, black ink). The other of the two types of cassettes accommodates, for example, a plurality of inks (for example, yellow, cyan, magenta ink). Further, in the prior art, the two types of cassettes each have a contact portion that is electrically connected to the printer side terminal provided in the printer. The contact between the printer and the cassette is electrically connected by the contact portion, and the information related to the cassette is exchanged between the printer and the cassette. Information about the card is, for example, information indicating the type of liquid to be contained, information indicating the amount of liquid to be contained, information indicating the amount of liquid consumed, and information indicating the date of manufacture of the card. [Prior Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. Japanese Patent Publication No. 2007-276495 [Patent Document 5] International Publication No. 99/59823

[The problem that the invention wants to solve]

In the prior art, a chimney type supply mechanism (for example, Patent Documents 1 to 3 and 5) and a needle type supply mechanism (for example, Patent Document 4) are known as a supply mechanism for supplying ink to the printer side. ). In the chimney type supply mechanism, the surface of the ink that holds the ink supply unit of the cassette is in surface contact with the upper surface of the ink lead-out portion of the printer, and the ink is supplied from the ink supply unit to the ink lead-out unit. In the needle supply mechanism, ink is supplied to the ink flow path in the ink supply needle in a state in which the ink supply needle of the printer is inserted into the ink supply port of the cassette.

In the needle supply mechanism, a valve member for opening and closing a flow path in the ink supply port or a sealing member for preventing ink from leaking from a gap between the ink supply needle and the ink supply port is provided in the ink supply port. Therefore, when the ink supply needle is inserted into the ink supply port, there is a case where the cartridge receives an external force from the ink supply needle via the valve member or the sealing member. By receiving an external force by the cassette, even if the cassette is mounted in the state of the printer, there is a possibility that the cassette moves to some extent.

Further, in the cassette used in the printer having the carriage for reciprocating movement, the cassette is subjected to the inertial force accompanying the reciprocating movement of the carriage. That is, when the moving direction of the carriage is switched from one direction (for example, the forward direction) to the moving direction of the other direction (returning direction), a large inertia force (external force) is applied to the cassette due to acceleration and deceleration of the bracket, so that the card is caused.匣 Rotating or shaking.

Further, depending on the arrangement position of the contact portions on the cassette, the portion where the contact portion is disposed may be deformed by an external force. Thereby, the positional displacement of the contact portion may occur, and the contact between the printer terminal and the contact portion cannot be maintained.

If the cassette moves, the position of the contact portion of the cassette may change, and the contact between the printer side terminal and the contact portion may not be maintained. Thereby, it has been desired from the prior art to appropriately maintain the contact between the printer side terminal and the contact portion. In particular, the second cassette that normally accommodates a plurality of types of ink tends to have a larger weight than the first cassette that contains one type of ink. Therefore, the second click is largely subjected to the inertial force generated by the acceleration and deceleration of the carriage, and may move largely with the reciprocation of the carriage. In the second cassette, it is necessary to try to maintain the contact between the printer side terminal and the contact portion, and it is necessary to try to be different from the first cassette. Further, such a desire is common not only for the cassette for accommodating the ink supplied to the printer but also for the cassette for accommodating the liquid for the liquid ejecting apparatus other than the printer. [Technical means to solve the problem]

The present invention has been made in order to solve at least a part of the above problems, and can be realized as the following aspects or application examples.

(1-1) According to an aspect of the present invention, a cassette is provided which is attached to a holder of a liquid ejecting apparatus in parallel with another cassette having one liquid supply port, the liquid ejecting apparatus having: When the three directions orthogonal to each other are the Z direction, the X direction, and the Y direction, the frame reciprocates in the X direction; a plurality of liquid supply pins are arranged side by side in the X direction in the bracket; The device side terminal is disposed in the bracket; and the device side fastening portion is disposed in the bracket. The cassette has a bottom surface and an upper surface which are equal to the opposite direction in the Z direction; the first side surface and the second side surface are equal to the Y direction; and the three or more odd liquid supply ports are equal to the X The direction is arranged side by side on the bottom surface at a position closer to the second side surface than the first side surface, and each has a central axis along the Z direction; a plurality of contact portions are arranged side by side in the X direction on the second side surface a position closer to the bottom surface than the upper surface; and a fastening member disposed on the second side surface at a position further than the plurality of contact portions on the upper surface side; the cassette is attached to the tray In the mounted state of the rack, the liquid supply port receives the liquid supply needle, the contact portion is in contact with the device-side terminal, and one of the engaging members, that is, the click-side engaging portion and the lower side of the device-side engaging portion The central axis of the liquid supply port at the center of the three or more odd liquid supply ports is set as a first central axis, and the first central axis is included and perpendicular to the X direction The first center surface is the first center surface, and the center axis of the liquid supply port on the side closer to the center of the tray in the X direction is the second center among the two liquid supply ports located beside the liquid supply port in the center. The shaft includes the second central axis and the surface perpendicular to the X direction as a second center surface, and the plurality of contact portions when the center of the X-direction of the click side engaging portion is a fastening center The central contact portion provided in the center of the X direction intersects with the first center surface, and one of the plurality of contact portions is located in the X direction in a range in which the latch side fastening portion is located, and the fastening center is disposed Between the first central surface and the second central surface.

According to the above aspect, the cassette is attached to the bracket of the liquid ejecting apparatus, and the movement of the cassette when it is affected by the inertial force accompanying the external force or the reciprocating movement of the bracket can be suppressed. Thereby, the positional variation of the contact portion with respect to the device-side terminal can be reduced. Therefore, the contact between the contact portion and the device side terminal can be favorably maintained.

(1-2) In the above aspect, the third and fourth side surfaces may be further equal to the opposite direction in the X direction, and the concave portion may be provided at a corner portion where the first side surface intersects the third side surface, a corner portion at which the first side surface intersects the fourth side surface, a corner portion where the second side surface intersects the third side surface, and at least one corner portion of a corner portion where the second side surface intersects the fourth side surface Further, the guide projection for guiding the attachment of the cartridge provided in the bracket is received, and the recess extends from the bottom surface side toward the upper surface side. According to the above aspect, the movement of the cassette can be restricted by the concave portion. Thereby, the positional change of the contact portion can be further suppressed, and the contact between the contact portion and the device-side terminal can be maintained more satisfactorily.

(1-3) In the above aspect, at least one of the end portions of the X direction and the other end portion of the X direction may be provided on the first side surface, and the cassette may be disposed on the bracket. The uneven portion that is fitted by the convex portion extends from the bottom surface side of the first side surface toward the upper surface side. According to the above aspect, the movement of the cassette can be restricted by the uneven portion. Thereby, the positional change of the contact portion can be suppressed, and the contact between the contact portion and the device-side terminal can be maintained more satisfactorily.

(2-1) According to another aspect of the present invention, a cassette is provided which is attached to a holder of a liquid ejecting apparatus in parallel with another cassette having one liquid supply port, the liquid ejecting apparatus having: When the three directions orthogonal to each other are the Z direction, the X direction, and the Y direction, the carriage moves back and forth along the X direction; a plurality of liquid supply needles are arranged side by side in the X direction in the bracket. And a device side terminal disposed on the bracket. The cassette has a bottom surface and an upper surface which are equal to the opposite direction in the Z direction; the first side surface and the second side surface are equal to the Y direction; and the three or more odd liquid supply ports are equal to the X The direction is arranged side by side on the bottom surface closer to the second side surface than the first side surface, and each has a central axis along the Z direction; and a plurality of contact portions arranged side by side in the X direction on the second surface a position on the side surface closer to the bottom surface than the upper surface; wherein the liquid supply port receives the liquid supply needle in a state in which the cassette is attached to the bracket, and the contact portion is in contact with the device-side terminal, the first The second surface has a first surface, a second surface, and a protruding surface that protrudes toward the bracket side in the Y direction from the first surface and the second surface, and the first surface is located in one of the X directions. a -X direction side, wherein the second surface portion is located in the other direction of the X direction, that is, the +X direction side; and in the X direction, the protruding surface portion is provided between the first surface portion and the second surface portion, The protruding surface portion includes a central axis of the liquid supply port at the center of the odd number of the three or more liquid supply ports, and intersects with a specific YZ plane orthogonal to the X direction, and the plurality of contacts are disposed on the protruding surface In the mounting state, the first side portion on the -X direction side of the protruding surface portion and the second side portion on the +X direction side are located between the two restricting portions of the bracket When the latch is viewed in the Y direction from the second side surface toward the first side surface side, the central axis of the liquid supply port in the center is in the X direction and is located within the range of the protruding surface. The central axis of the liquid supply port on the -X direction side of the liquid supply port in the center is located in the X direction in the range of the first face, and is closer to the +X than the liquid supply port in the center. The central axis of the liquid supply port on the direction side is located above the X-direction in the range in which the second surface is located.

According to the above aspect, since the first surface portion, the second surface portion, and the protruding surface portion are provided on the second side surface, the rigidity of the second side surface can be improved. Moreover, according to this aspect, the arrangement portion is provided on the protruding portion having higher rigidity, and the contact portion is provided on the arrangement portion. Thereby, since the positional fluctuation of the contact portion can be suppressed, the contact between the contact portion and the device-side terminal can be more favorably maintained. According to the above aspect, the first side portion and the second side portion of the protruding portion are located between the two restricting portions, and the movement of the protruding portion on which the contact portion is disposed can be suppressed by the restricting portion. Thereby, since the positional fluctuation of the contact portion can be suppressed, the contact between the contact portion and the device-side terminal can be more favorably maintained. According to the above aspect, since the restriction portion is provided in the space in which the first surface portion and the second surface portion face each other in the Y direction, the size of the restriction portion in the Y direction can be increased, and the rigidity of the restriction portion can be improved. Thereby, the movement of the protruding surface portion can be restricted by the restriction portion for improving the rigidity, and the positional variation of the contact portion can be further suppressed. According to the above aspect, the protruding surface portion in the X direction is provided between the first surface portion and the second surface portion, and the central axis of the liquid supply port at the center is located in the range in which the protruding surface portion is located in the X direction. Thereby, in the X direction, the movement of the protruding face is well balanced by the two restricting portions on both sides of the X-direction of the self-protruding face. Thereby, since the positional fluctuation of the contact portion can be suppressed, the contact between the contact portion and the device-side terminal can be more favorably maintained. According to the above aspect, the protruding surface portion in the X direction is provided between the first surface portion and the second surface portion, and the central axis of the liquid supply port at the center is located in the range in which the protruding surface portion is located in the X direction. Thereby, the size of the X-direction of the first face and the second face can be increased to some extent. As a result, since the size of the restriction portion in the X direction can be made to correspond to the first surface portion and the second surface portion to some extent, the rigidity of the restriction portion can be increased. Thereby, since the movement of the protruding surface portion can be restricted by the restriction portion for improving the rigidity, the positional variation of the contact portion can be further suppressed. According to the above aspect, when the user attaches the cassette to the tray, the protruding portion can be set as the marker. Thereby, it is possible to reduce the state in which the first side surface and the second side surface are opposite to each other and to attach the cassette to the bracket. According to the above aspect, when the arrangement portion in which the plurality of contact portions are disposed on the protruding surface portion causes the user or the manufacturer to accidentally drop the click, the possibility that the arrangement portion collides with the other members first is lowered. Most of the contact portions are provided on the circuit board. Further, a memory device (memory) is often provided on or around the circuit board. That is, in the above aspect, when the cassette is dropped, the circuit board or the memory device is actively destroyed. Thereby, when the cassette is attached to the tray, the liquid ejecting apparatus can easily detect the defect of the cassette.

(2-2) In the above aspect, the fastening member may be provided on the second side surface at a position closer to the upper surface side than the plurality of contact portions, and in the mounted state, the fastening member may be A part of the cassette side fastening portion is fastened to a surface provided on the lower side of the device side fastening portion of the bracket. According to the above aspect, by having the engaging member, the movement of the click can be further reduced. Thereby, since the positional fluctuation of the contact portion with respect to the device-side terminal can be suppressed, the contact between the contact portion and the device-side terminal can be more favorably maintained.

(2-3) In the aspect of the above 2-2, the first protrusion protruding in the −X direction may be further provided on the first side portion, and the second side portion may be provided to protrude in the +X direction. In the second projection, the first projection and the second projection are located on the upper surface side of the contact portion in the Z direction, and are located closer to the bottom surface than the fastening member, and in the mounted state, The first projection abuts against the restricting portion of one of the two restricting portions, and the second projection abuts against the other restricting portion of the two restricting portions. According to the above aspect, the first projection is in contact with the one restricting portion, and the second projection is in contact with the other restricting portion, so that the movement of the protruding surface portion can be further restricted. Thereby, since the positional fluctuation of the contact portion can be further suppressed, the contact between the contact portion and the device-side terminal can be further favorably maintained. Further, according to the above aspect, the first projection and the second projection are located on the upper surface side of the contact portion in the Z direction, and are more located on the bottom surface side than the fastening member. Thereby, the shaking of the cassette can be reduced.

(2-4) In the above aspect, the fastening member may be provided on the protruding surface portion. According to the above aspect, by providing the engaging member by the protruding portion having higher rigidity, the possibility of deformation of the protruding face can be reduced, and the deformation of the engaging member or the deviation of the locking position can be reduced. Thereby, the contact of the contact portion with the device-side terminal can be maintained more satisfactorily.

(2-5) In the aspect of the above 2-1, the first side portion may be provided with a first protrusion protruding in the -X direction, and the second side portion may be provided to protrude in the +X direction. In the second projection, the first projection and the second projection are located on the upper surface side of the contact portion in the Z direction, and are located closer to the bottom surface than the fastening member, and in the mounted state, The first projection abuts against the restricting portion of one of the two restricting portions, and the second projection abuts against the other restricting portion of the two restricting portions. According to the above aspect, the first projection is in contact with the one restricting portion, and the second projection is in contact with the other restricting portion, so that the movement of the protruding surface portion can be further restricted. Thereby, since the positional fluctuation of the contact portion can be further suppressed, the contact between the contact portion and the device-side terminal can be further favorably maintained. Further, according to the above aspect, the first projection and the second projection are located on the upper surface side of the contact portion in the Z direction. Thereby, the shaking of the cassette can be reduced.

(2-6) In the above aspect, at least one of the concave portion and the convex portion which are disposed to be spaced apart from the protruding surface portion may be provided on the first surface portion and the second surface portion. According to the above aspect, the rigidity of the first face and the second face can be improved.

(2-7) In the above aspect, the protrusion may be further provided on the bottom surface, and the protrusion may be provided on the bottom surface at a position closer to the first side surface than the second side surface, and the protrusion may be provided with a liquid supply including the center Two central axes are provided so as to be perpendicular to the surface in the X direction. According to the above aspect, the movement of the cassette by the rotation in the YZ plane parallel to the Y direction and the Z direction can be restricted by the projection.

(2-8) In the above aspect, the central contact portion provided in the center in the X direction of the plurality of contact portions may include a central axis of the liquid supply port at the center and intersect a surface perpendicular to the X direction. According to the above aspect, the positional variation of the plurality of contact portions can be reduced.

(2-9) In the above aspect, the plurality of contact portions may include a central axis of the liquid supply port at the center, and may be disposed symmetrically with respect to the X direction with a surface perpendicular to the X direction as a center. According to the above aspect, the maximum amount of fluctuation of the contact portion can be reduced.

(2-10) In the above aspect, the odd number of liquid supply ports may be disposed on a straight line parallel to the X direction. According to the above aspect, the connection between the liquid supply port and the liquid supply needle can be favorably maintained, and leakage of the liquid can be reduced or the intrusion of the air into the liquid supply needle can be reduced.

(2-11) In the above aspect, the recessed portion may be further provided on the bottom surface at a position closer to the first side surface than the second side surface, and may be provided in a device-side projection provided on the bracket. According to the above aspect, the movement of the cassette can be restricted by the protrusion on the side of the recess insertion device. Thereby, the positional change of the contact portion can be suppressed, and the contact between the contact portion and the device-side terminal can be favorably maintained.

The invention can also be implemented in various forms other than cassettes or cassettes. For example, a manufacturing method of a cassette, a liquid ejecting system including a cassette and a head, and a cassette having one liquid supply port and a cassette having an odd number of liquid supply ports can be realized.

A. First embodiment: A-1. Overall configuration of the liquid ejecting apparatus: Fig. 1 is a perspective view showing the configuration of the liquid ejecting system 90. In Fig. 1, an XYZ axis orthogonal to each other is depicted. The XYZ axis of Figure 1 corresponds to the XYZ axis of the other figures. For the graph shown hereafter, the XYZ axis is also marked as needed. The direction along the X-axis is set to the X direction, the direction along the Y-axis is set to the Y direction, and the direction along the Z-axis is set to the Z direction. Further, one direction in the X direction is set to the +X direction, and the other direction in the X direction is set to the -X direction. Further, one direction in the Y direction is set to the +Y direction, and the other direction is set to the -Y direction. Further, one direction in the Z direction is set to the +Z direction, and the other direction is set to the -Z direction. When the liquid ejecting system 90 is disposed in an XY plane (horizontal plane) parallel to the X direction and the Y direction, the Z direction is the up and down direction, the +Z direction is the antigravity direction (upward direction), and the -Z direction is the gravity direction (the lower direction) direction). Further, in the liquid ejecting system 90, the Y direction is the front-rear direction, and the X direction is the width direction (the left-right direction).

The liquid ejecting system 90 includes a cassette group 5 including two types of cassettes 10 and 20, and a liquid ejecting apparatus 50. In the liquid ejecting system 90, the two types of cassettes 10, 20 are detachably attached to the cassette holder 60 of the liquid ejecting apparatus 50 by the user. The liquid ejecting apparatus 50 is an ink jet printer that can correspond to printing of paper up to about A3 size. The liquid ejecting apparatus 50 has a head 540 that can eject three or more types of liquid. In the present embodiment, the head 540 can emit four kinds of inks of different colors (black ink, yellow ink, magenta ink, and cyan ink). Here, the cassette 10 is also referred to as "first cassette 10", and the cassette 20 is referred to as "second cassette 20".

The first cassette 10 and the second cassette 20 are mounted side by side in the X direction to the cassette holder 60. The first cassette 10 accommodates one type of liquid. In the present embodiment, the first cartridge 10 accommodates black ink. The second cassette 20 accommodates three types of inks of yellow ink, magenta ink, and cyan ink. In other words, the second cartridge 20 accommodates a plurality of liquids of three or more types (four types in the present embodiment) in which the liquid is removed from the head 540, and the liquid of the remaining type of the liquid contained in the first cartridge 10 is removed. . Here, the number or type of the cassettes attached to the cassette 60 is not limited to this embodiment. For example, the two first cassettes 10 and the one second cassette 20 may be attached to the cassette holder 60. In this case, the configuration of the cassette 60 may be changed corresponding to the number of cassettes. Moreover, the type of the liquid accommodated in the first cassette 10 and the second cassette 20 is not limited to this embodiment. For example, the ink of other colors (for example, light magenta or light blue-green) may be accommodated in the second cassette 20. Further, the second cassette 20 may be configured to accommodate two types of liquids, or may be configured to accommodate four or more types of liquids.

The liquid ejecting apparatus 50 includes a control unit 510 and a bracket 520 having a cassette holder 60 in addition to the cassette holder 60. The bracket 520 is provided with the above-described head 540. The liquid ejecting apparatus 50 causes the ink to flow from the first cassette 10 and the second cassette 20 attached to the cassette 60 to the head 540 via a liquid supply needle to be described later. The ink 540 which has flowed to the head is ejected (supplied) from the head 540 to a printing medium 515 such as paper or a label. Thereby, information such as characters, graphics, and images is printed on the print medium 515 by using the head 540.

The control unit 510 controls each unit of the liquid ejecting apparatus 50. The bracket 520 is configured to be relatively movable with respect to the print medium 515. The head 540 is provided with an ink ejecting mechanism that ejects ink supplied from the cassettes 10 and 20 attached to the cassette holder 60 to the printing medium 515. The control unit 510 and the bracket 520 are electrically connected via a flexible cable 517, and the ejection mechanism of the head 540 operates based on a control signal from the control unit 510.

In the present embodiment, the bracket 520 includes a head 540 and a cassette holder 60. Thus, the type of the liquid ejecting apparatus 50 in which the cassette 60 on the holder 520 for moving the head 540 is attached with the cassette 20 is referred to as a "cradle type". In other embodiments, the fixed cassette holder 60 may be formed in a portion different from the holder 520, and the ink from the cassette 20 attached to the cassette 60 may be supplied to the holder of the holder 520 via the flexible tube. 540. The type of such printer is also referred to as "disengaged bracket type".

The liquid ejecting apparatus 50 is provided with a main scanning transfer mechanism and a sub-scan transfer mechanism for relatively moving the carriage 520 and the printing medium 515 to print the printing medium 515. The main scanning transfer mechanism of the liquid ejecting apparatus 50 includes a carriage motor 522 and a drive belt 524. The carriage 520 is reciprocated in the X direction by transmitting the power of the carriage motor 522 to the carriage 520 via the drive belt 524. The sub-scanning transfer mechanism of the liquid ejecting apparatus 50 includes a transport motor 532 and a pressure plate 534, and conveys the power of the transport motor 532 to the platen 534 to transport the print medium 515 in the +Y direction. The direction in which the carriage 520 reciprocates is also referred to as the main scanning direction, and the direction in which the printing medium 515 is conveyed is referred to as the sub-scanning direction. In the present embodiment, the main scanning direction is the X direction, and the sub scanning direction is the Y direction. The carriage motor 522 of the main scanning transfer mechanism and the conveyance motor 532 of the sub-scanning transfer mechanism operate based on a control signal from the control unit 510.

A-2. Configuration of Bracket 520: Fig. 2 is a first plan view of the bracket 520. 3 is a second plan view of the bracket 520. 4 is a first perspective view of the bracket 520. FIG. 5 is a second perspective view of the bracket 520. Fig. 6 is a first explanatory diagram for explaining the configuration of the contact mechanism 70A. Fig. 7 is a second explanatory diagram for explaining the configuration of the contact mechanism 70A. FIG. 2 also shows the first cassette 10 and the second cassette 20 in a state in which the cassette holder 60 is correctly attached to the designed mounting position. "A state in which the mounting position is correctly mounted" means that the cartridges 10 and 20 are located at the respective terminals of the cartridge-side terminal group, which will be described later, and the device-side terminal group of the contact mechanism 70 of the liquid ejecting apparatus 50. The state of the position where each terminal contacts each other.

The cassette 60 (Figs. 4 and 5) has five wall portions 601, 603, 604, 605, and 606. The recess formed by the five wall portions 601, 603, 604, 605, and 606 serves as a cassette mounting portion 602 (also referred to as a "cartridge housing chamber 602") for mounting the cassettes 10, 20. The cassette mounting portion 602 (FIGS. 2 and 3) has a first mounting portion 602W on the side of the +X direction for mounting the first cassette 10, and a side on the -X direction for mounting the second cassette 20 The second mounting portion 602T. The cassette mounting portion 602 is opened at the upper side (+Z direction), and the cassettes 10 and 20 are detachably attached to the cassette holder 60 via the opening. The wall portion 601 is also referred to as "device side bottom wall portion 601". The wall portion 603 is also referred to as "the first device side side wall portion 603". The wall portion 604 is also referred to as "the second device side side wall portion 604". The wall portion 605 is also referred to as "the third device side side wall portion 605". The wall portion 606 is also referred to as "the fourth device side side wall portion 606".

The device side bottom wall portion 601 (Fig. 4) forms a bottom surface of the concave card mounting portion 602. The first to fourth device side wall portions 603, 604, 605, and 606 are raised from the device side first wall portion 601 in the +Z direction to form a side surface of the concave card mounting portion 602. The first device side wall portion 603 and the second device side wall portion 604 face each other in the Y direction. The first device side wall portion 603 is located on the -Y direction side, and the second device side wall portion 604 is located on the +Y direction side. The third device side wall portion 605 and the fourth device side wall portion 606 are opposed to each other in the X direction. The third device side wall portion 605 is located on the +X direction side, and the fourth device side wall portion 606 is located on the -X direction side.

The cassette 60 (FIGS. 3 to 5) further includes a plurality of liquid supply needles 640 and a plurality of contact mechanisms 70 having device-side terminals. In the present embodiment, four of the plurality of liquid supply needles 640 are provided. When the four liquid supply needles 640 are used differently, the symbols "640A", "640B", "640C", and "640D" are used. In the present embodiment, two of the plurality of contact mechanisms 70 are provided. When the two contact mechanisms 70 are used differently, the symbols "70A" and "70B" are used.

The liquid supply needle 640 (FIG. 5) is provided in the cassette mounting portion 602 in the bracket 520 (clip seat 60). The liquid supply needle 640 has a flow path through which the liquid flows. The liquid supply needle 640 is inserted into the liquid supply ports 180, 280 (Fig. 2) corresponding to the cassettes 10, 20. Thereby, the liquid accommodated in the cassettes 10 and 20 is introduced into the flow path inside the liquid supply needle 640. The liquid introduced into the liquid supply needle 640 is supplied to the head 540.

The liquid supply needle 640 (FIG. 5) is a member extending from the apparatus side first wall portion 601 in the +Z direction, and has a proximal end portion 645 and a distal end portion 642. The base end portion 645 side of the liquid supply needle 640 has a cylindrical shape, and the distal end portion 642 side has a substantially conical shape whose outer diameter becomes smaller toward the +Z direction side. The base end portion 645 forms a -Z direction side end portion of the liquid supply needle 640. The front end portion 642 forms a +Z direction side end portion of the liquid supply needle 640. In the distal end portion 642, an introduction hole for introducing a liquid supplied from the cassettes 10, 20 into the internal flow path is formed. The liquid supply needle 640 has a central axis C in the Z direction.

The four liquid supply needles 640A to 640D (FIG. 3) are arranged side by side in the X direction. The four liquid supply needles 640A to 640D are disposed in the device-side bottom wall portion 601 and are surrounded by the frame-side device-side regulating wall portion 615 that rises from the device-side bottom wall portion 601 in the +Z direction. The three liquid supply needles 640A to 640C are disposed in a region surrounded by the device-side regulating wall portion 615 and are located in the region 611 on the -X direction side. One liquid supply needle 640D is disposed in a region surrounded by the device side regulating wall portion 615 and is located in the region 612 on the + direction side. The apparatus side regulating wall portion 615 restricts the movement of the first cassette 10 and the second cassette 20 in a state in which the first cassette 10 and the second cassette 20 are attached to the cassette holder 60 (mounted state). Specifically, the device side regulating wall portion 615 restricts the movement of the first cassette 10 and the second cassette 20 in the XY plane parallel to the X direction and the Y direction. Details of restrictions on movement of the first cassette 10 and the second cassette 20 by the device-side regulating wall portion 615 will be described later.

The three liquid supply needles 640A to 640C (FIG. 3) are disposed in the second attachment portion 602T. The three liquid supply needles 640A to 640C are respectively inserted into the three corresponding liquid supply ports 280 of the second cassette 20 . Thereby, liquids different from those accommodated in the second cassette 20 are respectively distributed in the three liquid supply needles 640A to 640C. In the present embodiment, yellow ink is supplied to the liquid supply needle 640A, magenta ink is supplied to the liquid supply needle 640B, and cyan ink is distributed to the liquid supply needle 640C. The liquid supply needle 640D is inserted into one liquid supply port 180 of the first cassette 10. Thereby, the liquid accommodated in the first cartridge 10 (black ink in the present embodiment) is circulated in the liquid supply needle 640D. The liquid that has flowed into each of the liquid supply needles 640A to 640D is supplied to the head 540 (FIG. 2).

The contact mechanism 70 (FIG. 4) is provided on the first device side wall portion 603. The contact mechanism 70A has a device-side terminal (device-side terminal group 799) that is in contact with the contact portion of the second cartridge 20 described later in the mounted state of the second cartridge 20. The contact mechanism 70B has a device-side terminal (device-side terminal group 799) that is in contact with the contact portion of the first cartridge 10 described later in the mounted state of the first cartridge 10.

Since the two contact mechanisms 70A and 70B have the same configuration, the following description will be made using the contact mechanism 70A provided in the second mounting portion 602T. The contact mechanism 70A (Figs. 6 and 7) has contact forming members 703 and 704 that come into contact with the cassette side terminal group of the second cassette 20 (the first cassette 10 in the case of the contact mechanism 70B). In the contact mechanism 70A (FIG. 6), two types of slits 701 and 702 having different depths are alternately formed at substantially constant pitch so as to correspond to the respective card side terminals 431 to 439 of the cassette side terminal group 499. (Figure 7).

A holding member 705 (FIG. 6) is disposed in each of the slits 701 and 702. The contact forming members 703 and 704 having conductivity and elasticity are embedded in the holding members 705 of the slits 701 and 702. The portions where the contact forming members 703 and 704 are in contact with the holding member 705 serve as fulcrums, and the both end portions are elastically deformed in the direction including the Y-direction component.

The circuit board 400 of the end portion 792 exposed to the cassette mounting portion 602 and the second cassette 20 (the first cassette 10 in the case of the contact mechanism 70B) in the both end portions of the contact forming members 703 and 704 (the first card 10 is a circuit board 30 to be described later), and the corresponding card-side terminals of the respective card-side terminals 431 to 439 are elastically contacted. As shown in FIG. 6, the end portion 792 is pressed against the -Y direction side by the click side terminal group 499, and is elastically deformed toward the -Y direction side from the no-load state. Thereby, the cassette-side terminal group 499 is pressed in the +Y direction by the end portion 792, whereby the contact between the contact forming members 703 and 704 and the cassette-side terminal group 499 can be satisfactorily maintained.

Among the click side terminals 431 to 439, the portions in contact with the contact forming members 703 and 704 serve as contact portions. Fig. 7 shows portions 710 to 790 of the contact forming members 703, 704 which are in contact with the cassette side terminals 431 to 439. In other words, the portions 710 to 790 that are in contact with the cassette-side terminals 431 to 439 function as device-side terminals for electrically connecting the control unit 510 (FIG. 1) of the liquid ejecting apparatus 50 and the cassette-side terminals 431 to 439. . Hereinafter, portions 710 to 790 which are in contact with the cassette side terminals 431 to 439 shown in FIG. 7 are also referred to as device side terminals 710 to 790. Further, the device side terminals 710 to 790 are also collectively referred to as a device side terminal group 799.

On the other hand, the end portion 793 (FIG. 6) of the contact forming members 703, 704 located outside the cassette mounting portion 602 is in elastic contact with the corresponding terminal of the terminals 71 to 79 of the relay substrate 790A provided in the liquid ejecting apparatus 50. .

The cassette holder 60 further includes a device side engagement portion 632 (FIG. 4), a restriction portion 635 as a restriction portion (FIGS. 4 and 5), a cassette recognition convex portion 616 (FIG. 3), and a device side protrusion 638. (Figure 3, Figure 5).

The device side engagement portion 632 (FIG. 4) is provided on the first device side wall portion 603, and is provided on the +Z direction side of the contact point mechanism 70. Two device side engaging portions 632 are provided. When the two device side engaging portions 632 are used differently, the symbols "632A" and "632D" are used. The device side engagement portion 632 is a protruding piece that protrudes from the first device side wall portion 603 toward the cassette attachment portion 602 side (+Y direction side). The device-side engaging portion 632A provided in the second attaching portion 602T is engaged with the second latch 20 in the attached state, and the engaging member described later in the second latch 20 is engaged. The device-side engaging portion 632D provided in the first mounting portion 602W is in the attached state of the first cartridge 10, and the first engaging member 10 is engaged with the engaging member described later.

The restricting portion 635 (FIGS. 4 and 5) is a wall portion that protrudes from the first device side wall portion 603 toward the cassette mounting portion 602 side (+Y direction). The restricting portion 635 is located on the lower side of the device side engaging portion 632 and is located in the Z direction at least in the range in which the contact mechanism 70 is located. There are three restriction portions 635. When the three restriction units 635 are used differently, the symbols "635A", "635B", and "635C" are used.

The first restricting portion 635A is located closer to the -X-axis direction than the contact mechanism 70A. The second restricting portion 635B is located on the +X direction side of the contact point mechanism 70A and on the -X direction side of the contact point mechanism 70B. The third restricting portion 635C is located closer to the +X direction than the contact mechanism 70B.

The first restricting portion 635A and the second restricting portion 635B are disposed so as to be interposed between the contact mechanisms 70A in the X direction. In other words, the contact mechanism 70A is disposed in the space portion in which the first regulating portion 635A and the second regulating portion 635B form the side surface in the X direction. Further, the second restricting portion 635B and the third restricting portion 635C are disposed so as to sandwich the contact mechanism 70B in the X direction. In other words, the contact mechanism 70B is disposed in the space portion in which the second regulating portion 635B and the third regulating portion 635C form the side surface in the X direction.

The first restricting portion 635A (FIG. 5) has a first restricting wall surface 635fa that faces the device-side terminal group 799 of the contact mechanism 70A in the X direction. The first restriction wall surface 635fa forms a side surface on the +X direction side of the first regulation portion 635A. The first restriction wall surface 635fa is a surface facing the +X direction. In other words, the first restriction wall surface 635fa is a surface substantially parallel to the Y direction and the Z direction.

The second restricting portion 635B (FIG. 4) has a second restricting wall surface 635fb that faces the device-side terminal group 799 of the contact mechanism 70A in the X direction. The second restriction wall surface 635fb is a surface facing the -X direction in the X direction with the device side terminal group 799 via the contact mechanism 70A facing the first restriction wall surface 635fa. In other words, the second restriction wall surface 635fb is a surface that is substantially parallel to the Y direction and the Z direction. The second restriction wall surface 635fb forms a side surface on the −X direction side of the second regulation portion 635B. The second regulation portion 635B further has a third restriction wall surface 635fc (FIG. 5) that faces the device-side terminal group 799 of the contact mechanism 70B in the X direction. The third restriction wall surface 635fc forms a side surface on the +X direction side of the second regulation portion 635B. The third restriction wall surface 635fc is a surface facing the +X direction. In other words, the third restriction wall surface 635fc is a surface that is substantially parallel to the Y direction and the Z direction.

The third restricting portion 635C (FIG. 4) has a fourth restricting wall surface 635fd that faces the device-side terminal group 799 of the contact mechanism 70B in the X direction. The third restricting portion 635C may also be configured as a part of the third device side side wall portion 605. The fourth restriction wall surface 635fd is a surface facing the -X direction with the device-side terminal group 799 and the third restriction wall surface 635fc interposed by the contact mechanism 70B in the X direction. In other words, the fourth restriction wall surface 635fd is a surface that is substantially parallel to the Y direction and the Z direction.

The cassette identifying convex portion 616 (FIG. 3) is a member for preventing the cassette other than the second cassette 20 from being attached to the second mounting portion 602T, and is a convex portion extending from the apparatus side bottom wall portion 601 in the +Z direction. shape. The second cassette 20 has a concavo-convex portion that is fitted to the cassette identifying convex portion 616. The cassette other than the second cassette 20, for example, the first cassette 10 or the cassette used for the liquid ejecting apparatus having a different model does not have the concavo-convex portion fitted to the cassette identifying convex portion 616. By the cassette identifying convex portion 616, it is possible to reduce the possibility of attaching a cassette different from the second cassette 20 to be attached to the second mounting portion 602T. The cassette identifying convex portion 616 is located on the +X direction side (the third device side side wall portion 605 side) and the +Y direction side (the second device side side wall portion 604 side) of the second mounting portion 602T.

The device side protrusion 638 (Figs. 3 and 5) is a rod-shaped member that extends from the apparatus side first wall portion 601 in the +Z direction. The device side protrusion 638 is inserted into the recessed portion described later in the second cassette 20. The device side protrusion 638 is located on the +Y direction side (the second device side side wall portion 604 side) of the second attachment portion 602T.

The cassette 60 further has a guiding convex portion 617 (Figs. 3 to 5). The guiding convex portion 617 is a member that is provided at a corner portion where the second device side wall portion 604 and the fourth device side wall portion 606 intersect, and protrudes toward the second mounting portion 602T side of the cassette mounting portion 602. The guiding convex portion 617 extends from the device-side first wall portion 601 in the +Z direction. The guiding convex portion 617 guides the attachment of the second cassette 20 to the second mounting portion 602T. Further, the guiding convex portion 617 is a portion that comes into contact with the second cartridge 20 in the mounted state of the second cartridge 20.

The cassette 60 (Figs. 3 to 5) further has a partition wall 604R. The partition wall 604R is a plate-shaped member that protrudes from the second side wall portion 604 of the second device side toward the inner side (the −Y direction side) of the cassette mounting portion 602. The partition wall 604R extends from the apparatus side bottom wall portion 601 to the upper end portion of the second device side side wall portion 604. The partition wall 604R is located at the boundary between the first mounting portion 602W and the second mounting portion 602T.

FIG. 8 is a schematic view for explaining the head 540. Figure 9 is a cross-sectional view taken along line 9-9 of Figure 2. The head 540 (FIG. 8) has a first type of ejection port portion 544D, and a plurality of (three in the present embodiment) second type of ejection port portions 544A, 544B, and 544C. The first type of ejection port portion 544D (FIG. 9) communicates with the first liquid storage chamber 100 (FIG. 9) that accommodates the first cartridge 10 of one type of liquid (black ink in the present embodiment). The first type of ejection port portion 544D emits one type of liquid accommodated in the first cassette 10 . The second type of ejection port portion 544A communicates with the second liquid storage chamber 200A (FIG. 9) of the second cassette 20. The second type of ejection port portion 544B communicates with the second liquid storage chamber 200B (FIG. 9) of the second cassette 20. The second type of ejection port portion 544C communicates with the second liquid storage chamber 200C (FIG. 9) of the second cassette 20. The second liquid storage chamber 200A accommodates yellow ink, the second liquid storage chamber 200B stores magenta ink, and the second liquid storage chamber 200C accommodates blue-green ink. In other words, the second type of ejection port portions 544A to 544C are provided one by one for the plurality of types of liquids accommodated in the second cassette 20, and each of the plurality of liquids is discharged.

As shown in FIG. 8, the first type of ejection port portion 544D and the second type of ejection port portions 544A, 544B, and 544C have a plurality of ejection openings 546 formed on the lower surface 542 of the shower head 540, respectively. The self-ejection outlet 546 passes through the liquid supply needles 640 (640A to 640D) and the flow paths FLA to FLD (FIG. 9), and the liquid supplied to the shower head 540 is emitted to the outside (for example, the printing medium 515). When the injection ports 546 of the respective outlet portions 544A to 544D are used differently, the symbols "546A", "546B", "546C", and "546D" are used.

Each of the ejection openings 546D (FIG. 8) of the first type of ejection port portion 544D emits one type of liquid (black ink in the present embodiment) supplied from the first cassette 10 to the head 540. Each of the injection ports 546A to 546C of the second type of injection port portions 544A to 544C emits one type of liquid of the three types of liquids accommodated in the second cassette 20 . Specifically, the yellow ink is emitted from each of the ejection openings 546A of the second type of ejection port portion 544A, and the magenta ink is emitted from each of the ejection openings 546B of the second type of ejection opening portion 544B, and each of the ejections from the second type of ejection opening portion 544C is emitted. Exit 546C emits blue-green ink. The number of the respective ejection outlets 546A to 546C of the three ejection outlet portions 544A to 544C is the same.

The number of the injection ports 546D of the first type of injection port portion 544D is larger than the number of the injection ports 546A to 546C of the second type of the outlet portions 544A to 544C. In the present embodiment, the number of the injection ports 546D is three times the number of the injection port 546A or the injection port 546B or the outlet port 546C. Thereby, the first type of ejection port portion 544D is larger than the maximum ejection amount of the liquid that can be ejected per unit time from the second type of ejection port portions 544A to 544C. For example, the maximum emission amount of the first type of ejection port portion 544D is 6 g/min, and the maximum emission amount of each of the second type of ejection port portions 544A to 544C is 2 g/min. The maximum emission amount of the first type of ejection port portion 544D and the second type of ejection port portions 544A to 544C is adjusted by the number of the ejection openings 546D and the number of the ejection openings 546A to 546C. However, the present invention is not limited thereto. For example, the maximum injection amount can be changed by changing the type or performance of the liquid injection mechanism (for example, the piezoelectric vibration element) that controls the injection of the liquid, and the maximum injection amount can be changed by changing the opening diameters of the injection ports 546A to 546D.

A-3. Outline of the internal structure of the cassette and the mounting state of the cassette: In addition to the above-described FIG. 9, the internal structure of the first cassette 10 and the second cassette 20 and the first cassette are used with reference to FIG. 10. The second cassette 20 will be described in outline of the mounting state of the cassette 60. Figure 10 is a cross-sectional view taken along line 10-10 of Figure 2. In addition, one of the parts of Fig. 10 is a mode display.

As shown in FIG. 9, in the mounted state of the first cassette 10 and the second cassette 20, the distance D1 between the second cassette 20 and the cassette holder 60 (more specifically, the fourth apparatus side wall portion 606) is It is larger than the interval D2 between the first cassette 10 and the second cassette 20 in the X direction.

In the mounted state of the first cassette 10 to the cassette 60 (FIG. 9), the liquid supply needle 640D is inserted into the liquid supply port 180 of the first cassette 10. Thereby, the black ink is supplied to the head 540 from the first liquid storage chamber 100 via the liquid supply needle 640D. The first liquid storage chamber 100 does not have a liquid absorber for holding (absorbing) liquid. That is, the first cassette 10 is a straight liquid type cassette. A valve mechanism 150 for opening and closing a flow path connecting the first liquid storage chamber 100 and the liquid supply port 180 is disposed in the first liquid storage chamber 100. The valve mechanism 150 has the same configuration as that of the valve of Japanese Laid-Open Patent Publication No. 2013-248786, for example. Specifically, the valve mechanism 150 has a valve body 152 that closes the communication hole 142. The communication hole 142 and the valve body 152 are provided in the middle of the flow path connecting the first liquid storage chamber 100 and the liquid supply port 180. Since the ink flows from the first liquid storage chamber 100 to the liquid supply port 180, the liquid supply port 180 side is set to the downstream side. The flow path connecting the first liquid storage chamber 100 and the liquid supply port 180 is normally closed by the valve body 152 receiving the spring force of the spring pushing member 155 to close the communication hole 142. In this state, when the liquid on the downstream side of the valve body 152 is consumed and the negative pressure on the downstream side of the valve body 152 becomes a specific magnitude, the valve body 152 resists the spring force of the spring pushing member 155, and leaves the communication hole 142. The direction is shifted. When the valve body 152 is separated from the communication hole 142, the liquid is supplied to the downstream side portion from the upstream side portion of the valve body 152 via the communication hole 142. A predetermined amount of liquid is supplied to a portion on the downstream side of the valve body 152, and if it becomes a predetermined pressure (negative pressure), the valve body 152 is closed by the elastic force of the elastic member 155 to close the communication hole 142. Shift. In addition, the first liquid storage chamber 100 communicates with the atmosphere, and introduces air into the first liquid storage chamber 100 as the liquid is consumed.

In the state in which the second cassette 20 is attached to the cassette 60, the corresponding liquid supply needle 640 is inserted into the liquid supply port 280 of the second cassette 20. Thereby, yellow ink, magenta ink, and cyan ink are supplied to the head 540 from the second liquid storage chamber 200 via the liquid supply needle 640. The second cassette 20 has a plurality of (three in the present embodiment) second liquid storage chambers 200 that accommodate three kinds of liquids. When the three second liquid storage chambers 200 are used differently, the symbols "200A", "200B", and "200C" are used. The three second liquid storage chambers 200A to 200C are partitioned such that the liquids are not mixed with each other by the partition walls 22 and 23. The second liquid storage chamber 200A accommodates yellow ink, the second liquid storage chamber 200B stores magenta ink, and the second liquid storage chamber 200C accommodates blue-green ink. Each of the three second liquid storage chambers 200A to 200C accommodates a liquid absorber (liquid holding member) 299. The liquid absorber 299 is a member for holding (absorbing) a liquid by a specific capillary force, and for example, may be a foaming member such as a polyurethane foam, or may be a bundle for processing polypropylene into a fiber. Fiber component. Each of the liquid absorbers 299 is disposed in substantially the entire area of each of the second liquid storage chambers 200A to 200C. Each of the second liquid storage chambers 200A to 200C is different from the first liquid storage chamber 100 in that the valve mechanism 150 is not provided. In the second cassette 20, since the negative pressure in the liquid storage chambers 200A to 200C is maintained by the capillary force of the liquid absorber 299, the valve mechanism 150 is not required. In each of the second liquid storage chambers 200A to 200C, the upstream side portion communicates with the atmosphere, and the second liquid storage chambers 200A to 200C are introduced into the atmosphere in each of the second liquid storage chambers 200A to 200C.

A valve mechanism 284 is disposed inside each of the liquid supply ports 180 and 280A to 280C. The valve mechanism 284 (Fig. 10) opens and closes the internal flow paths of the liquid supply ports 180, 280. The valve mechanism 284 is provided with a seal portion (valve seat) 287, a valve body 286, and a poppet member 285 in this order from the front end sides of the liquid supply ports 180 and 280. The sealing portion 287 is a substantially annular member. The sealing portion 287 is made of, for example, an elastic body such as rubber or an elastomer. The sealing portion 287 is press-fitted into the inside of the liquid supply ports 180, 280. The sealing portion 287 is in airtight contact with the outer peripheral surface of the liquid supply needle 640 in the mounted state, thereby suppressing leakage of liquid from the gap between the liquid supply ports 180, 280 and the liquid supply needle 640 to the outside. The valve body 286 is a substantially cylindrical member. The valve body 286 is pushed in the direction toward the sealing portion 287 by the spring pushing member 285 in a state in which the cartridges 10, 20 are attached to the cartridge holder 60 (unmounted state), and the hole formed in the sealing portion 287 is closed. . That is, in the unmounted state, the valve mechanism 284 is in the closed state. The poppet member 285 is a compression coil spring. In the mounted state of the cassettes 10, 20, the liquid supply needle 640 presses the valve body 286 in a direction away from the sealing portion 287, so that the valve body 286 is away from the sealing portion 287. Thereby, the valve mechanism 284 is brought into an open state.

As shown in FIG. 10, in the mounted state of the second cassette 20, the engaging member 230 of the second cassette 20 is engaged with the lower surface 633 of the apparatus side engaging portion 632A. Face 633 is the face in the -Z direction. The engaging member 230 is a member that is operated by a user by attaching and detaching the second cartridge 20 to the second mounting portion 602T, and is a rod having elasticity. The fastening member 230 has a snap side fastening portion 235 that is fastened to the surface 633. The second cartridge 20 in the mounted state receives the spring thrust (external force) FP1 in the +Y direction from the cartridge side terminal group 499 of the circuit board 400 from the device side terminal group 799 of the contact mechanism 70A. Further, the second cartridge 20 in the mounted state pushes the valve body 286 toward the +Z direction side by the liquid supply needle 640, and the receiving spring pushing member 285 is compressed to generate an external force (reaction force) FP2. Further, the second cassette 20 in the mounted state is elastically deformed by pressing the sealing portion 287 by the liquid supply needles 640A to 640C. The force FP3 outside the XY plane parallel to the X direction and the Y direction is received by the reaction force of the elastic deformation. The external force FP3 includes an external force in the X direction or a force in the Y direction.

In the mounted state, the click side engaging portion 235 of the second cassette 20 is engaged with the surface 633 of the device side engaging portion 632A. When the click side engaging portion 235 is engaged with the device side engaging portion 632A, the second click 20 is restricted from moving in the +Z direction by the external force FP2. The configuration for restricting the movement of the second latch 20 by the external force FP1 or the external force FP3 will be described below.

A-4. Configuration of the first cassette 10: Fig. 11 is a first perspective view of the first cassette 10. Fig. 12 is a second perspective view of the first cassette 10. The mounting direction of the first cassette 10 to the cassette holder 60 is the -Z direction, and the removal direction is the +Z direction.

As shown in FIGS. 11 and 12, the first cartridge 10 has an outer shape of a substantially rectangular parallelepiped shape. The outer surface (outer casing) 12 of the first cassette 10 has six faces. The six faces are the bottom face 14, the upper face 13, the front face (first side face) 16, the back face (second side face) 15, the left side face (third side face) 17, and the right side face (fourth side face) 18. Six faces 13 to 18 constitutes the outer casing 12 of the first cassette 10. Each of the faces 13 to 18 has a planar shape. The case where the planar inclusion surface is completely flat is completely flat, and there is a case where irregularities are present in one of the faces. That is, there may be some irregularities in one of the faces. Each of the faces 13 to 18 has a substantially rectangular shape in plan view.

The first cartridge 10 has a first liquid storage chamber 100 that accommodates one type of liquid (black ink in the present embodiment). One type of liquid (black ink) accommodated in the first liquid storage chamber 100 is an ink (pigment ink) containing a pigment. The pigment ink is an ink which disperses a pigment in a dispersion medium such as water.

The bottom surface 14 includes a concept of forming a wall of the bottom wall of the first cassette 10 in a mounted state, and may also be referred to as a "bottom wall portion (bottom wall) 14". Further, the upper surface 13 includes a concept of forming a wall of the upper wall of the first cassette 10 in a mounted state, and may also be referred to as an "upper wall portion (upper wall) 13". Further, the front surface 16 includes a concept of forming a wall of the front wall of the first cassette 10 in a mounted state, and may also be referred to as a "front wall portion (front wall) 16". Further, the back surface 15 includes a concept of forming a wall of the back wall of the first cartridge 10 in a mounted state, and may also be referred to as a "back wall portion (back wall) 15". Further, the left side surface 17 includes a concept of forming a wall of the left side wall of the first cassette 10 in a mounted state, and may also be referred to as a "left side wall portion (left side wall) 17". Further, the right side surface 18 includes a concept of forming a wall of the right side wall of the first cassette 10 in a mounted state, and may also be referred to as a "right side wall portion (right side wall) 18". Further, the "wall portion" or the "wall" is not necessarily formed by a single wall, but may be formed by a plurality of walls.

The upper surface 13 and the bottom surface 14 oppose in the Z direction. The upper surface 13 is located on the +Z direction side, and the bottom surface 14 is located on the -Z direction side. In the mounted state, the bottom surface 14 faces the device side bottom wall portion 601 (Fig. 4) of the cassette holder 60. The upper surface 13 and the bottom surface 14 are horizontal surfaces in the mounted state. The upper surface 13 and the bottom surface 14 intersect the back surface 15, the front surface 16, the left side surface 17, and the right side surface 18 at substantially right angles. The upper surface 13 and the bottom surface 14 are parallel to the X direction and the Y direction. The upper surface 13 and the bottom surface 14 are planes orthogonal to the Z direction. When the plane parallel to the X direction and the Y direction (the plane orthogonal to the Z direction) is the XY plane, the upper surface 13 and the bottom surface 14 are planes parallel to the XY plane.

The back surface 15 and the front surface 16 face each other in the Y direction. The back surface 15 is located on the -Y direction side, and the front surface 16 is located on the +Y direction side. In the mounted state, the back surface 15 faces the first device side wall portion 603 (FIG. 4) of the cassette holder 60. In the mounted state, the front surface 16 faces the second device side side wall portion 604 (FIG. 4) of the cassette holder 60. The back surface 15 and the front surface 16 are perpendicular to each other in the mounted state. The back surface 15 and the front surface 16 intersect the upper surface 13, the bottom surface 14, the right side surface 18, and the left side surface 17 at substantially right angles. The back surface 15 and the front surface 16 are parallel to the X direction and the Z direction. The back surface 15 and the front surface 16 are planes orthogonal to the Y direction. When the surface parallel to the X direction and the Z direction (the surface orthogonal to the Y direction) is the XZ plane, the back surface 15 and the front surface 16 are parallel to the XZ plane.

The left side surface 17 and the right side surface 18 oppose each other in the X direction. The left side surface 17 is located on the +X direction side, and the right side surface 18 is located on the -X direction side. In the mounted state, the left side surface 17 opposes the third device side side wall portion 605 (FIG. 4) of the cassette holder 60. In the mounted state, the right side surface 18 faces the second cassette 20. The left side surface 17 and the right side surface 18 are perpendicular to each other in the mounted state. The left side surface 17 and the right side surface 18 intersect the upper surface 13, the bottom surface 14, the back surface 15, and the front surface 16 at substantially right angles. The left side surface 17 and the right side surface 18 are parallel to the Y direction and the Z direction. The left side surface 17 and the right side surface 18 are planes orthogonal to the X direction. When the surface parallel to the Y direction and the Z direction (the surface orthogonal to the X direction) is the YZ plane, the left side surface 17 and the right side surface 18 are parallel to the YZ plane.

When the length of the first cassette 10 (the size in the Y direction), the width (the size in the X direction), and the height (the size in the Z direction) are compared, the length is the largest and the width is the smallest. Further, the relationship between the length, the width, and the height of the first cassette 10 can be arbitrarily changed. For example, the height can be set to the maximum, the width can be minimized, and the height, the length, and the width can be made equal.

As shown in FIG. 11, one liquid supply port 180 is protruded and arranged in the bottom surface 14. The liquid supply port 180 has a substantially cylindrical shape. The liquid supply port 180 has a central axis CT in the Z direction. As shown in FIG. 9, the first cassette 10 is attached to the mounting state of the bracket 520, and the liquid supply port 180 is inserted into the liquid supply needle of the first mounting portion 602W (FIG. 2, FIG. 3) provided in the cassette holder 60. 640D (Figure 2). An opening 188 for allowing the ink of the first liquid storage chamber 100 to flow to the outside is formed on the end surface of the liquid supply port 180. The opening 188 is closed by the film 183 in the first cartridge 10 before the first mounting portion 602W of the liquid ejecting apparatus 50. The film 183 is configured to be punctured by the liquid supply needle 640D when the first cartridge 10 is attached to the first attachment portion 602W.

As shown in FIG. 12, a circuit board 30 is provided at a position closer to the bottom surface 14 than the upper surface 13 of the back surface 15.

The configuration of the circuit board 30 is the same as that of the circuit board 400 of the second cartridge 20 to be described later. On the surface of the circuit board 30, a plurality of (nine) card-side terminals 31 forming a plurality of (nine) contact portions are formed. Each of the plurality of card-side terminals 31 is in contact with the device-side terminal group 799 (FIG. 4) of the contact mechanism 70B in the mounted state. Thereby, the circuit board 30 is electrically connected to the control unit 510 (FIG. 1) of the liquid ejecting apparatus 50. Further, a rewritable memory device (memory) is provided on the back surface of the circuit board 30. The information related to the first cassette 10 such as the ink consumption amount of the first cassette 10 or the ink color is stored in the memory device.

Further, on the side of the upper surface 13 of the back surface 15 on the upper surface of the circuit board 30, a fastening member 120 as a rod is provided. The end portion of the engaging member 120 on the -Z direction side is connected to the back surface 15 and is elastically deformed in the direction of the component having the Y direction around the end portion on the -Z direction side. This elastic deformation is used for attaching and detaching the first cassette 10 to the cassette holder 60 (FIG. 1). The engaging member 120 has a click side engaging portion 122 that is fastened to a surface (surface facing the -Z direction) 633 (FIG. 10) on the lower side of the device side engaging portion 632D (FIG. 4). The cassette side engaging portion 122 is a protrusion that protrudes from the body of the fastening member 120 toward the -Y direction side.

As shown in FIG. 11, an air introduction port 19 is formed in the right side surface 18. The air introduction port 19 is an opening for introducing air (air) into the first liquid storage chamber 100.

A-5. Detailed configuration of the second cassette 20: Fig. 13 is a first perspective view of the second cassette 20. Fig. 14 is a second perspective view of the second cassette 20. Fig. 15 is a plan view of the second cassette 20. Fig. 16 is a bottom view of the second cassette 20. Figure 17 is a rear view of the second cassette 20. Figure 18 is a front view of the second cassette 20. Figure 19 is a left side view of the cassette 20. Figure 20 is a right side view of the cassette 20. 21 is a front view of the circuit substrate 400. 22 is a side view of the circuit substrate 400. As shown in FIG. 2, the second cassette 20 is attached to the bracket 520 in parallel with another cassette (first cassette) 10 having one liquid supply port in the X direction. Similarly to the case of the first cassette 10, the attachment direction of the second cassette 20 to the cassette holder 60 is the -Z direction, and the removal direction is the +Z direction.

When the length (the size in the Y direction), the width (the size in the X-axis direction), and the height (the size in the Z direction) of the second cassette 20 (FIG. 13) are compared, the length is the largest and the width is the smallest. Further, the relationship between the length, the width, and the height of the second cassette 20 can be arbitrarily changed. For example, the height can be set to the maximum, the width can be minimized, and the height, the length, and the width can be made equal. Further, the second cassette 20 has a larger size than the first cassette 10 in the X direction.

As shown in FIGS. 13 and 14, the outer shape of the second cassette 20 is a substantially rectangular parallelepiped shape. The outer casing 21 of the second cassette 20 has six faces. The six faces are the bottom face 201, the upper face 202, the first side face (front face) 204, the second side face (back face) 203, the third side face (left side face) 205, and the fourth side face (right side face) 206. Six faces 201 to 206 constitutes the outer casing 21 of the second cassette 20. Each of the faces 201 to 206 is planar. The case where the planar inclusion surface is completely flat is completely flat, and there is a case where irregularities are present in one of the faces. That is, there may be some irregularities in one of the faces. Each of the faces 201 to 206 has a substantially rectangular shape in plan view.

The second cassette 20 (FIG. 15) has a plurality of each of the plurality of liquids (the yellow ink, the magenta ink, and the cyan ink in the present embodiment) (the third embodiment is the third embodiment). 2 liquid storage chambers 200A, 200B, 200C. The plurality of liquids (yellow ink, magenta ink, and cyan ink) accommodated in the second cassette 20 are dye inks, respectively.

The bottom surface 201 includes a concept of forming a wall of the bottom wall of the second cassette 20 in a mounted state, and may also be referred to as a "bottom wall portion (bottom wall) 201". Further, the upper surface 202 includes a concept of forming a wall of the upper wall of the second cassette 20 in a mounted state, and may also be referred to as an "upper surface wall portion (upper wall) 203". Further, the first side surface 204 includes a concept of forming a wall of the front wall of the second cassette 20 in a mounted state, and may also be referred to as a "front wall portion (front wall) 204". Further, the second side surface 203 includes a concept of forming a wall of the back wall of the second cassette 20 in a mounted state, and may also be referred to as a "back wall portion (back wall) 203". Further, the third side surface 205 includes a concept of forming a wall of the left side wall in a mounted state, and may also be referred to as a "left side wall portion (left side wall) 205". Further, the fourth side surface 206 is a concept including a wall forming a right side wall in a mounted state, and may also be referred to as a "right side wall portion (right side wall) 206". Further, the "wall portion" or the "wall" is not necessarily formed by a single wall, but may be formed by a plurality of walls.

As shown in FIG. 19, the bottom surface 201 and the upper surface 202 face each other in the Z direction. The bottom surface 201 is located on the -Z direction side, and the upper surface 202 is located on the +Z direction side. In the mounted state, the bottom surface 201 faces the device-side bottom wall portion 601 (FIG. 4) of the cassette holder 60. The bottom surface 201 and the upper surface 202 are horizontal surfaces in the mounted state. The bottom surface 201 and the upper surface 202 intersect the first side surface 204, the second side surface 203, the third side surface 205, and the fourth side surface 206 at substantially right angles. The bottom surface 201 and the upper surface 202 are surfaces that are parallel to the X direction and the Y direction. The bottom surface 201 and the upper surface 202 are planes orthogonal to the Z direction. When the plane parallel to the X direction and the Y direction (the plane orthogonal to the Z direction) is the XY plane, the bottom surface 201 and the upper surface 202 are planes parallel to the XY plane.

As shown in FIG. 15, the first side surface 204 and the second side surface 203 are opposed to each other in the Y direction. The first side surface 204 is located on the +Y direction side, and the second side surface 203 is located on the -Y direction side. In the mounted state, the first side surface 204 faces the second device side wall portion 604 (FIG. 4) of the cassette holder 60. The second side surface 203 is opposed to the first device side wall portion 603 (FIG. 4) of the cassette holder 60. The first side surface 204 and the second side surface 203 are perpendicular to each other in the mounted state. The first side surface 204 and the second side surface 203 intersect the bottom surface 201 (FIG. 19), the upper surface 204 (FIG. 19), the third side surface 205, and the fourth side surface 206 at substantially right angles. The first side surface 204 and the second side surface 203 are surfaces that are parallel to the X direction and the Z direction. The first side surface 204 and the second side surface 203 are planes orthogonal to the Y direction. When the surface parallel to the X direction and the Z direction (the surface orthogonal to the Y direction) is the XZ plane, the first side surface 204 and the second side surface 203 are parallel to the XZ plane.

As shown in FIG. 15, the third side surface 205 and the fourth side surface 206 are opposed to each other in the X direction. The third side surface 205 is located on the +X direction side, and the fourth side surface 206 is located on the -X direction side. In the mounted state, the third side surface 205 faces the first cassette 10 . In the mounted state, the fourth side surface 206 faces the fourth device side wall portion 606 (FIG. 4) of the cassette holder 60. The third side surface 205 and the fourth side surface 206 intersect the bottom surface 201, the upper surface 202, the first side surface 204, and the second side surface 203 at substantially right angles. The third side surface 205 and the fourth side surface 206 are surfaces that are parallel to the Y direction and the Z direction. The third side surface 205 and the fourth side surface 206 are planes orthogonal to the X direction. When the surface parallel to the Y direction and the Z direction (the surface orthogonal to the X direction) is the YZ plane, the third side surface 205 and the fourth side surface 206 are parallel to the YZ plane.

As shown in FIGS. 13 and 17, the second cassette 20 has a circuit board 400 and a fastening member 230 on the second side surface 203.

The second side surface 203 has a first surface portion 242, a second surface portion 241, and a protruding surface portion 245. The protruding surface portion 245 is a portion that protrudes toward the cassette holder 60 side (the outer side, the -Y direction side in the present embodiment) from the first surface portion 242 and the second surface portion 241. The thickness (the dimension in the Y direction) of the wall of the protruding surface portion 245 is larger than the thickness (the dimension in the Y direction) of the walls of the first surface portion 242 and the second surface portion 241, and the rigidity is higher than that of the first surface portion 242 and the second surface portion 241. The protruding surface portion 245 has a first protruding surface portion 246 disposed between the first surface portion 242 and the second surface portion 241 in the X direction, and a second protruding surface portion 247 connected to the end portion of the first protruding surface portion 246 on the +Z direction side. The first surface portion 242 is located on the -X direction side which is one side of the X direction from the first protruding surface portion 246. The second surface portion 241 is located on the other side in the X direction, that is, on the +X direction side, than the first protruding surface portion 246.

The portion of the first protruding surface portion 246 that intersects the second side surface 203 from the bottom surface 201 extends in the +Z direction to the vicinity of substantially the center of the Z direction of the second cassette 20 . The first protruding surface portion 246 is a member having a substantially rectangular shape. In the mounted state of the second cassette 20, the first protruding surface portion 246 is disposed between the first restricting portion 635A and the second restricting portion 635B (FIG. 4). A circuit board 400 is provided on the first protruding surface portion 246. A plurality of contact portions cp that are in contact with the device-side terminal group 799 (FIG. 7) of the second mounting portion 602T are disposed on the surface 400fa of the circuit board 400. The surface 400 fa functions as an arrangement portion in which a plurality of contact portions cp are disposed. Details of the circuit board 400 will be described later.

The first protruding surface portion 246 has a first side portion 246B on the first surface portion 242 side (the −X direction side) and a second side portion 246A on the second surface portion 241 side (the +X direction side). The first side portion 246B is a portion that forms the side surface on the first surface portion 242 side of the first protruding surface portion 246 and faces the -X direction. The second side portion 246A is a portion that forms the side surface on the second surface portion 241 side of the first protruding surface portion 246 and faces the +X direction.

The first side portion 246B is provided with a first protrusion 249 that protrudes in the -X direction. The second side portion 246A is provided with a second protrusion 248 that protrudes in the +X direction. The first protrusions 249 and the second protrusions 248 are located on the upper surface 202 side (+Z direction side) of the contact portion cp of the circuit board 400 in the Z direction. In the mounted state of the second cassette 20, the first projection 249 abuts against the first restricting portion 635A (FIG. 5). In the mounted state of the second cassette 20, the second projection 248 abuts against the second restricting portion 635B (FIG. 4).

A concave portion 222 is provided on the first surface portion 242 at an interval from the protruding surface portion 245. In the present embodiment, three recessed portions 222 are provided. In the second surface portion 241, a concave portion 221 is provided at an interval from the protruding surface portion 245. In the present embodiment, three recessed portions 221 are provided. The rigidity of the first surface portion 242 and the second surface portion 241 can be increased by the concave portions 222 and 221 . Further, in other embodiments, the convex portions may be provided instead of the concave portions 222 and 221, and the concave portions 222, 221 and the convex portions may be provided. In this way, the rigidity of the first surface portion 242 and the second surface portion 241 can also be improved.

The second protruding surface portion 247 is a portion having a substantially rectangular parallelepiped shape extending in the X direction. A proximal end portion (first end portion) 231 of the engaging member 230 is connected to the second protruding surface portion 247.

As shown in FIG. 17, the circuit board 400 is provided in the 1st protrusion surface part 246. The circuit board 400 has a hub groove 401 formed at an end portion on the +Z direction side, and a hub hole 402 formed at an end portion on the -Z direction side. The circuit board 400 is fixed to the first protruding surface portion 246 of the cassette 20 by using the hub groove 401 and the hub hole 402. In the present embodiment, the hub groove 401 and the hub hole 402 pass through the center of the second cartridge 20 in the X direction, and intersect the plane PCP parallel to the Y direction and the Z direction (perpendicular to the X direction). In the other embodiment, at least one of the hub groove 401 and the hub hole 402 may be omitted from the circuit board 400, and the circuit board 400 may be fixed to the first protruding surface portion 246 by using an adhesive, or may be provided on the first protruding surface portion 246 side. The fastening claws (not shown) fix the circuit board 400.

As shown in FIG. 22, the circuit board 400 has a card-side terminal group 499 (FIG. 22) provided on the surface 400fa as an arrangement portion, and a memory device 420 provided on the back surface 400fb. The surface 400fa and the back surface 400fb are flat. The surface 400fa is a surface parallel to the mounting direction (-Z direction) of the second cassette 20. In the present embodiment, the surface 400fa is a surface parallel to the X direction and the Z direction. In the state of being attached to the second cassette 20, the portion (one side) on the most +Z direction side of the surface 400fa is also referred to as a substrate end portion 405.

The cassette side terminal group 499 includes nine cassette side terminals 431 to 439. The memory device 420 stores information related to the second cassette 20. The information relating to the second cassette 20 includes, for example, information indicating the type of liquid to be contained, information indicating the amount of liquid to be contained, information indicating the amount of consumption of the liquid, and information indicating the date of manufacture of the second cassette 20 .

As shown in FIG. 21, each of the nine click side terminals 431 to 439 is formed in a substantially rectangular shape so as to be formed in two rows which are substantially perpendicular to the mounting direction, that is, the -Z direction. The substantially vertical behavior extends in the width direction (X direction) of the second cassette 20. In the two rows, the row on the deep side (the -Z direction side) in the mounting direction is referred to as the first terminal row RN1 (the lower row row RN1), and the row near the front side (the +Z direction side) in the mounting direction is referred to as the first row. 2 terminal row RN2 (upper row RN2). In other words, the positions of the first terminal row RN1 and the second terminal row RN2 in the Z direction are different. Specifically, the first terminal row RN1 is located closer to the −Z direction than the second terminal row RN2. In the central portion of each of the terminals 431 to 439, there is a contact portion cp that comes into contact with the device-side terminal group 799 (Figs. 5 and 7) of the contact mechanism 70A. It is also considered that the first and second terminal lines RN1 and RN2 are formed by a plurality of contact portions cp.

Each of the cassette side terminals 431 to 439 can be referred to as follows according to functions (uses). In addition, in order to clarify the difference from the terminal on the side of the liquid ejecting apparatus 50, the name is also referred to as "click side". For example, the "ground terminal 437" may also be referred to as "the cassette side ground terminal 437". <1st terminal line RN1> (1) Mounting detection terminal (first terminal) 435 (2) Power supply terminal 436 (3) Ground terminal 437 (4) Data terminal 438 (5) Mounting detection terminal (second terminal) 439 < 2nd terminal row RN2> (6) Mounting detection terminal (3rd terminal) 431 (7) Reset terminal 432 (8) Clock terminal 433 (9) Mounting detection terminal (4th terminal) 434

Each of the contact portions cp forming the terminals 435 to 439 of the first terminal row RN1 is disposed differently from the respective contact portions cp of the terminals 431 to 434 forming the second terminal row RN2. In the present embodiment, each of the contact portions cp is arranged in a so-called zigzag shape.

The four mounting detection terminals 431, 434, 435, and 439 are used to detect the electrical contact with the terminals of the device-side terminal group 799 (FIG. 4) corresponding to the contact mechanism 70A by the liquid ejecting apparatus. 50 detects whether the cassette 20 is correctly mounted to the mounting position designed by the cassette holder 60. Thereby, the four mounting detection terminals 431, 434, 435, and 439 can also be referred to as "mounting detection terminal group". In the present embodiment, the four cassette-side terminals 431, 434, 437, and 439 are electrically connected to each other inside the circuit board 400, and when the second cassette 20 is attached to the cassette holder 60 (FIG. 4), the ground is grounded. The terminal 437 is electrically connected to a ground line (not shown) on the side of the liquid ejecting apparatus 50.

The other five cassette side terminals 432, 433, 436, 437, and 438 are terminals for the memory device 420. Accordingly, the five terminals 432, 433, 436, 437, and 438 may also be referred to as "memory terminal groups."

The reset terminal 432 receives the reset signal RST supplied to the memory device 420. The clock terminal 433 receives the clock signal SCK supplied to the memory device 420. The power terminal 436 receives the power supply voltage VDD (e.g., rated 3.3 V) supplied to the memory device 420. The ground terminal 437 receives the ground voltage VSS (0 V) supplied to the memory device 420. The data terminal 438 receives the data signal SDA supplied to the memory device 420.

The first terminal 435, which is one of the mounting detection terminal groups, includes the first outer portion 435P located on the most X-direction side of the cassette-side terminal group 499. The second terminal 439, which is one of the mounting detection terminal groups, includes the second outer portion 439P located on the most +X direction side of the cassette side terminal group 499. The third terminal 431, which is one of the mounting detection terminal groups, includes the third outer portion 431P located on the most X-direction side of the second terminal row RN2. The fourth terminal 434, which is one of the mounting detection terminal groups, includes the fourth outer portion 434P located on the most +X direction side of the second terminal row RN2.

The ground terminal 437 having a contact portion (central contact portion) cp provided in the center of the X direction among the plurality of contact portions cp is disposed at a position intersecting the plane PCP. When the central contact portion cp is used differently from the other contact portions cp, the symbol "cpc" is used. Further, the contact portions cp of the remaining terminals 431 to 436, 438, and 439 are disposed at positions where the intersection of the plane PCP and the ground terminal 437 is axis-lined. In other words, a plurality of (nine in the present embodiment) contact portions cp are arranged symmetrically with the plane PCP as a center. Further, the plane PCP is the same surface as the first center plane PC to be described later.

As shown in FIG. 17, a plurality of contact portions cp of the circuit board 400 are arranged side by side in the X direction at a position closer to the bottom surface 201 than the upper surface 202 of the second side surface 203. By arranging side by side in the X direction, a plurality of contact portions cp are arranged at different positions in the X direction.

The ground terminal 437 (FIG. 21) is configured such that when the second cassette 20 is attached to the cassette 60, the other cassette side terminals 431 to 436, 438, and 439 (FIG. 21) are in contact with the contact mechanism 70A (FIG. 4). It is in contact with the contact mechanism 70A. Thereby, the spring force applied from the cassette holder 60 to the circuit board 400 is generated in the center of the X direction of the second cassette 20. Thereby, the spring force applied to the circuit board 400 can be suppressed as a force for inclining the second cassette 20 in the X direction, and the second cassette 20 can be attached to the designed mounting position. Further, since the ground terminal 437 is in contact with the contact mechanism 70A of the cartridge 60 before the other latch terminals 431 to 436, 438, and 439, even if an inadvertent high voltage is applied to the second cartridge 20 side, The grounding function of the ground terminal 437 can also be used to alleviate the problem of high voltage.

As shown in FIGS. 13 and 17, the engaging member 230 as a lever is provided on the upper surface 202 side of the contact portion cp on the second side surface 203. That is, at least a part of the fastening member 230 is located in the range WA in which the plurality of contact portions cp are located in the X direction (FIG. 21). The fastening member 230 has a first end portion (base end portion) 231 on the −Z direction side, a second end portion (front end portion) 232 on the +Z direction side, and a space between the first end portion 231 and the second end portion 232 . The card side fastening portion 235. The first end portion 231 is connected to the second protruding surface portion 247 of the second side surface 203. The engaging member 230 is elastically deformed in the direction of the component having the Y direction so that the second end portion 232 side is close to or away from the second side surface 203 with the first end portion 231 as the center. This elastic deformation is used for attaching and detaching the second cassette 20 to the cassette holder 60 (Fig. 4). The cassette side engaging portion 235 is a protrusion that protrudes from the body of the fastening member 230 toward the -Y direction side. The cassette side engaging portion 235 extends in the X direction. In the mounted state of the second cassette 20, the upper surface of the cassette side engaging portion 235 and the lower surface 633 (FIG. 10) of the apparatus side engaging portion 632A are engaged. The buckle is pressed so that the second end portion 232 approaches the second side surface 203 side, and is released by the snap side engaging portion 235 being displaced to the second side surface 203 side.

As shown in FIG. 14, the second cartridge 20 has a liquid supply portion 289, projections 262, 263, and a recess 264 provided on the bottom surface 201. The liquid supply portion 289 protrudes from the bottom surface 201 in the -Z direction. At least the -Z direction side portion of the liquid supply portion 289 is disposed in a region 611 (FIG. 3) in which the three liquid supply needles 640A, 640B, and 640C are surrounded by the device side regulating wall portion 615 in the mounted state of the second cartridge 20 . The liquid supply unit 289 has an odd number (three in the present embodiment) of the liquid supply ports 280A, 280B, and 280C, and three surrounding members 283A, 283B, and 283C provided for each of the liquid supply ports 280A, 280B, and 280C. . When the three liquid supply ports 280A, 280B, and 280C are used without being distinguished from each other, the symbol "280" is used. When the three surrounding members 283A, 283B, and 283C are not used, the symbol "283" is used.

As shown in FIGS. 14 and 16, the three liquid supply ports 280A, 280B, and 280C are disposed on the bottom surface 201 at a position closer to the second side surface 203 than the first side surface 204. The three liquid supply ports 280A, 280B, and 280C are disposed on the bottom surface 201 at positions closer to the second side surface 203 than the position between the first side surface 204 and the second side surface 203. In the present embodiment, the three liquid supply ports 280A, 280B, and 280C are disposed in the vicinity of the second side surface 203. The three liquid supply ports 280A, 280B, and 280C are disposed on the bottom surface 201 at a position offset to the second side surface 203 side. Each of the three liquid supply ports 280A, 280B, and 280C has a cylindrical shape, the -Z direction side protrudes from the bottom surface 201, and the +Z direction side is located inside the outer casing 21. The three liquid supply ports 280A, 280B, and 280C have central axes CM, CC, and CN in the Z direction, respectively. When the center axis CM, CC, and CN are not used, the "center axis CX" is used.

The three liquid supply ports 280A, 280B, and 280C are arranged side by side in the X direction. In the present embodiment, the three central axes CM, CC, and CN are located on a straight line parallel to the X direction. In other words, all of the three central axes CM, CC, and CN are located on the XZ plane parallel to the X direction and the Z direction (orthogonal to the Y direction). Further, in another embodiment, the specific straight line along the X direction may be disposed so as to intersect with the three liquid supply ports 280A, 280B, and 280C, and the three central axes CM, CC, and CN are not necessarily all located on the XZ plane. The valve mechanism 284 (FIG. 10) is disposed inside each of the three liquid supply ports 280A, 280B, and 280C.

As shown in Fig. 16, the liquid supply port (central liquid supply port) 280B is located at the center of the three liquid supply ports 280A, 280B, and 280C (the second one from the -X direction side or the +X direction side). The term "centered" means N (N is an odd number of 3 or more) liquid supply ports arranged side by side in the X direction, and is located at the side of one direction from the X direction (for example, the side of the -X direction), the {(N+1)/ 2}. The central axis CC of the central liquid supply port 280B passes through the center XCP of the second cartridge 20 in the X direction, and intersects the plane PCP parallel to the Y direction and the Z direction (perpendicular to the X direction).

As shown in FIGS. 9 and 16, the other two liquid supply ports 280A and 280C are located beside the center liquid supply port 280B. The liquid supply port 280C is located on the +X direction side of the center liquid supply port 280B. The liquid supply port 280C is located on the side of the X direction near the center of the bracket 520 (Fig. 4). That is, the liquid supply port 280C is located on the side of the first mounting portion 602W (FIG. 4) in the X direction from the liquid supply port 280A. The liquid supply port 280C is located on the first cassette 10 side. The liquid supply port 280A is located on the -X direction side of the center liquid supply port 280B. That is, the liquid supply port 280A is located on the side farthest from the first mounting portion 602W (first cassette 10) in the X direction. The central axis CC of the central liquid supply port 280B is also referred to as a first central axis CC. Further, the central axis CN of the liquid supply port 280C is also referred to as a second central axis CN.

As shown in FIG. 14, the liquid supply ports 280A, 280B, and 280C have openings 288 at the end portions on the -Z direction side, respectively. The opening 288 is circular. Alternatively, the liquid supply port 280 may be non-cylindrical and the opening 288 may also be non-circular. The liquid supply port 280 only needs to have a shape in which the liquid supply needle 640 can be inserted. In this case, the central axis CT of the liquid supply needle 640 in the mounted state can also be regarded as the central axis of the liquid supply port 280.

As shown in FIG. 9, the second cassette 20 is attached to the bracket 520, and the liquid supply ports 280A, 280B, and 280C are inserted into the second mounting portion 602T (FIG. 2, FIG. 3) provided in the cassette holder 60. The liquid supply needles 640A, 640B, 640C. That is, in the mounted state in which the second cassette 20 is attached to the bracket 520, the liquid supply ports 280A, 280B, and 280C are supplied to the liquid supply needles 640A, 640B, and 640C. As shown in FIG. 14, in the second cassette 20 before the second mounting portion 602T, the opening 288 is closed by the film FM. The film FM is configured to be punctured by the liquid supply needles 640A, 640B, and 640C when the second cartridge 20 is attached to the second attachment portion 602T.

As shown in FIG. 15, the liquid supply port 280A communicates with the second liquid storage chamber 200A in which the yellow ink is accommodated, and the yellow ink in the second liquid storage chamber 200A is supplied to the liquid supply needle 640A. The liquid supply port 280B communicates with the second liquid storage chamber 200B that stores the magenta ink, and supplies the magenta ink of the second liquid storage chamber 200B to the liquid supply needle 640B. The liquid supply port 280C communicates with the second liquid storage chamber 200C that accommodates the cyan ink, and supplies the cyan ink of the second liquid storage chamber 200C to the liquid supply needle 640C.

As shown in FIG. 14, the surrounding members 283A, 283B, and 283C are members that protrude from the bottom surface 201 in the -Z direction. The surrounding member 283A protrudes from the outer circumferential surface of the liquid supply port 280A toward both sides in the Y direction (the +Y direction side and the -Y direction side). The surrounding member 283B protrudes from the outer circumferential surface of the liquid supply port 280B on both sides in the Y direction (the +Y direction side and the -Y direction side). The surrounding member 283C protrudes from the outer circumferential surface of the liquid supply port 280C toward both sides in the Y direction (the +Y direction side and the -Y direction side). The surrounding members 283A, 283B, and 283C are opposed to the apparatus side regulating wall portion 615 (FIG. 3) in the X direction and the Y direction in the mounted state of the second cartridge 20. Thereby, the possibility that the liquid supply ports 280A, 280B, and 280C move in the X direction and the Y direction in the mounted state can be reduced. Further, among the three surrounding members 283A, 283B, and 283C, the center surrounding member 283B has the regulating convex portion 282 on the side surface on the +Y direction side. The restricting convex portion 282 is located closer to the +Y direction side than the center liquid supply port 280B. The restricting convex portion 282 protrudes more in the +Y direction than the other portion of the surface of the peripheral member 283B at the center. The restricting convex portion 282 extends in the Z direction. The restricting convex portion 282 is in contact with the device-side regulating wall portion 615 (FIG. 5) in a state in which the second cartridge 20 is attached to the second mounting portion 602T (FIGS. 2 and 3).

The protrusions 262 and 263 protrude from the bottom surface 201 in the -Z direction, respectively. The protrusions 262, 263 have a substantially rectangular parallelepiped shape. One of the protrusions 262 and 263 is also referred to as a first protrusion 262, and the other is referred to as a second protrusion 263. As shown in FIGS. 14 and 16, the projections 262 and 263 are respectively provided on the bottom surface 201 at a position closer to the first side surface 204 than the second side surface 203. In the present embodiment, the projections 262 and 263 are provided to be connected to the lower end portion of the first side surface 204. The first projection 262 and the second projection 263 include a central axis CC of the liquid supply port 280B at the center, and are provided so as to be spaced apart from the plane PCP perpendicular to the X direction. The first projection 262 is provided on the bottom surface 201 at a position close to the third side surface 205. The second projection 263 is provided on the bottom surface 201 at a position close to the fourth side surface 206. The functions of the protrusions 262, 263 are described below.

As shown in FIGS. 14 and 16 , the concave portion 264 is provided on the bottom surface 201 at a position closer to the first side surface 204 than the second side surface 203 . The recessed portion 264 is provided to be connected to the lower end portion of the first side surface 204. The concave portion 264 is located between the first protrusion 262 and the second protrusion 263. The concave portion 264, the first projection 262, and the second projection 263 are arranged side by side in the X direction. The recessed portion 264 is in the mounted state of the second cartridge 20, and is received by the device-side projection 638 (Figs. 3 and 5).

As shown in FIGS. 14 and 18, the second cassette 20 has a concavo-convex portion 257 provided on the first side surface 204. The uneven portion 257 is provided in the first side surface 204, and at least one of one end (+X direction) end portion (corner portion) L1 in the X direction and the other (-X direction) end portion (corner portion) R1 in the X direction. unit. In the present embodiment, the uneven portion 257 is provided at the end portion L1 of the first side surface 204. In other words, at least a part of the uneven portion 257 is connected to the end portion L1 where the first side surface 204 and the third side surface 205 intersect.

The uneven portion 257 has a convex portion 250 and a concave portion 252 partitioned by the convex portion 250. The uneven portion 257 extends from the bottom surface 201 side of the first side surface 204 toward the upper surface 202 side. In the present embodiment, the portion where the uneven portion 257 intersects the first side surface 204 and the bottom surface 201 extends in the +Z direction to the vicinity of the substantially center of the Z direction of the first side surface 204. The -Z direction side of the concave portion 252 is opened to receive the cassette identification convex portion 616. The shape of the uneven portion differs depending on the type (model number, etc.) of the cassette. When the second cassette 20 having the uneven portion 257 having the shape shown in FIGS. 14 and 18 is attached to the second mounting portion 602T (FIGS. 2 and 3), the uneven portion 257 and the click identifying convex portion 616 are formed. (Fig. 3) Chimerism. Specifically, the cassette identifying convex portion 616 corresponding to the shape of the concave portion 252 of the uneven portion 257 is fitted into the concave portion 252 of the uneven portion 257. Even if a different type of cassette is attached to the second attachment portion 602T, the uneven portion of the cassette does not conform to the shape of the cassette recognition convex portion 616, and one of the uneven portions collides with the cassette recognition convex portion 616. Therefore, it is not possible to attach different types of cassettes to the second mounting portion 602T. In this manner, the uneven portion 257 prevents the different types of cassettes from being attached to the second mounting portion 602T.

As shown in FIG. 14, the second cassette 20 further has a concave portion 258 provided at a corner portion R1 where the first side surface 204 and the fourth side surface 206 intersect. The concave portion 258 extends from the bottom surface 201 side of the first side surface 204 toward the upper surface 202 side. In the present embodiment, the portion where the concave portion 258 intersects the first side surface 204 and the bottom surface 201 extends in the +Z direction to the vicinity of the substantially center of the Z direction of the first side surface 204. The concave portion 258 has a shape that is recessed from the first side surface 204 and the fourth side surface 206 toward the inner side of the outer casing 21, respectively. The recess 258 has a surface 258fa facing the -X direction and a surface 258fb facing the +Y direction.

In the mounted state of the second cassette 20, the concave portion 258 receives the guiding convex portion 617 (Figs. 3 and 5). In other embodiments, the recessed portion 258 may be provided at the corner portion R1, the corner portion L1 where the first side surface 204 intersects the third side surface 205, and the corner portion L2 where the second side surface 203 intersects the third side surface 205 (FIG. 15). At least one corner of the corner portion R2 (FIG. 15) where the second side surface 203 and the fourth side surface 206 intersect.

As shown in FIG. 13, since the first surface portion 242, the second surface portion 241, and the protruding surface portion 245 are provided on the second side surface 203, the second side surface 203 can have a concave-convex structure. Thereby, the rigidity of the second side surface 203 can be improved. In addition, the circuit board 400 is provided by the protruding surface portion 245 having a higher rigidity in the second side surface 203 (specifically, the first protruding surface portion 246), and the possibility that the protruding surface portion 245 is deformed by an external force can be reduced. Therefore, since the position of the contact portion cp provided on the surface 400fa of the circuit board 400 is changed in the mounted state of the second cartridge 20, the contact portion cp of the circuit board 400 and the device-side terminal group can be favorably maintained. 799 contact.

Further, by providing the engaging member 230 by the protruding portion 245 having higher rigidity (more specifically, the second protruding surface portion 247), the possibility that the protruding surface portion 245 is deformed by an external force can be reduced. Thereby, the possibility of applying an excessive load to the fastening member 230 can be reduced, and the deformation of the fastening member 230 or the deviation of the fastening position of the hook side engaging portion 235 and the device side engaging portion 632A can be reduced. Thereby, the contact between the contact portion cp of the circuit substrate 400 and the device-side terminal group 799 can be favorably maintained.

Further, as shown in FIG. 13 and FIG. 14, the second cassette 20 is provided with the protruding surface portion 245 on the second side surface 203, and the protruding surface portion is not provided on the first side surface 204 facing the second side surface 203 in the Y direction. When the user attaches the second cassette 20 to the bracket 520, the protruding surface portion 245 can be marked. Thereby, the possibility that the first side 204 and the second side surface 203 are opposite to each other and the cassette 20 is attached to the bracket 520 can be reduced.

Further, as shown in FIG. 13, when the circuit board 400 is placed on the first protruding surface portion 246, when the user or the manufacturer transports the second cassette 20, the surface of the circuit board 400 is raised when the second cassette 20 is accidentally dropped. The possibility that the 400fa collides with the other parts first. In other words, when the second cassette 20 is dropped, the circuit board 400 or the memory device (memory) is actively destroyed. Thereby, when the second cassette 20 is attached to the bracket 520, the control unit 510 of the liquid ejecting apparatus 50 can easily detect the defect of the second cassette 20. In the second cassette 20, when the portion other than the contact portion cp (for example, the upper surface or the bottom surface) is broken, when the second cassette 20 is attached to the bracket 520, the control unit 510 cannot detect the second cassette 20; Poor, although the second cartridge 20 is broken, the liquid ejecting device 50 also operates to damage the liquid ejecting device 50.

A-6. Positional relationship of each element of the second cassette 20: Fig. 23 is a view for explaining the positional relationship of each element of the second cassette 20. In FIG. 23, the second cassette 20 when viewed in the Y direction from the second side surface 203 side toward the first side surface 204 side (+Y direction) is illustrated.

As shown in FIG. 23, the surface including the first central axis CC and perpendicular to the X direction (the surface parallel to the Y direction and the Z direction) is referred to as a first central surface (specific YZ plane) PC. In the present embodiment, the first center plane PC coincides with the plane PCP (Fig. 17). The second central axis CN is included, and the surface perpendicular to the X direction (the surface parallel to the Y direction and the Z direction) is referred to as a second center plane PN. The third central axis CM is included, and the surface perpendicular to the X direction (the surface parallel to the Y direction and the Z direction) is referred to as a third center plane PL. The center of the latch side engaging portion 235 in the X direction is referred to as a snap center CE. In the X direction, the range in which the first protruding surface portion 246 is located is the range W246, the range in which the first surface portion 242 is located is the range W242, and the range in which the second surface portion 241 is located is defined as the range W241.

The central contact portion cpc provided in the center of the X direction among the plurality of contact portions cp intersects with the first center plane PC. Further, the engagement center CE is located at a position deviated from the first center plane PC in the +X direction. The fastening center CE is located between the first center plane PC and the second center plane PN. Further, a part of the plurality of contact portions cp is located in the X direction, and the range in which the cassette side fastening portion 235 is located is in the WE. In other words, when the second cassette 20 is viewed from the +Z direction side, one of the plurality of contact portions cp overlaps with the click side engaging portion 235 in the X direction. In the present embodiment, the partial contact portion cp including one of the center contact portions cpc is located in the range WE in the X direction.

The first protruding surface portion 246 intersects with the first center plane PC. Further, the central axis CC of the central liquid supply port 280B is located in the X direction and is within the range W246 where the first protruding surface portion 246 is located. Further, the center axis CM of the liquid supply port 280A on the -X direction side of the center liquid supply port 280B is located in the X direction, and the range W242 of the first face portion 242 is located. Further, the center axis CN of the liquid supply port 280C on the +X direction side is located in the X direction and the range W W of the second face portion 241 is located in the center liquid supply port 280B.

A-7. External force applied to the cassette 20: Fig. 24 is a first view for explaining the force applied to the second cassette 20. Fig. 25 is a second view for explaining the force applied to the second cassette 20. When the second cassette 20 is attached to the cassette 60, an external force FP1 (FIG. 25), an external force FP2 (FIG. 24), and an external force FP3 (FIG. 25) are applied to the second cassette 20.

The external force FP1 (FIG. 25) is a force (elastic thrust) applied to the contact portion cp of the circuit board 400 from the device-side terminal group 799 of the contact mechanism 70A. The external force FP1 is the force in the +Y direction. The external force FP2 (FIG. 24) is such that the valve body 286 is pushed up on the +Z direction side by the liquid supply needles 640A, 640B, and 640C, and the spring pushing member 285 is compressed to generate an external force (reaction force). The external force FP2 is the force in the +Z direction. The external force FP3 (Fig. 25) is that the sealing portion 287 is elastically deformed by the liquid supply needles 640A, 640B, and 640C, and an external force is generated by the reaction force of the elastic deformation. The external force FP3 is a force along an XY plane parallel to the X direction and the Y direction. The external force FP1 to the external force FP3 may cause the second cassette 20 to move to some extent in the state of being attached to the second mounting portion 602T.

Further, when the bracket 520 is located at the turning point of the moving direction (the switching point of the moving direction), the acceleration or deceleration of the bracket 520 becomes large, and the second jam 20 generates a large inertia due to acceleration and deceleration. force. The rotation moments MXZ, MXY1, and MXY2 are generated in the second cassette 20 by the inertial force.

By the rotational moment MXZ (Fig. 24), the liquid supply needles 640A, 640B, and 640C are centered on the insertion positions of the liquid supply ports 280A, 280B, and 280C, and the second cassette 20 is in the XZ parallel to the X direction and the Z direction. The direction of the plane is DXZ shaking. The movement of the second cassette 20 due to the rotational torque MXZ becomes larger as the distance from the liquid supply ports 280A, 280B, 280C (strictly speaking, the contact portion between the liquid supply needle 640 and the sealing portion 287 of the valve mechanism 284) becomes larger. . Further, by the rotational moment MXY2 (FIG. 25), the second cartridge 20 is rotated in the direction DXY2 parallel to the X direction and the Y direction in the Y direction, centering on the vicinity of the central axis CC. Further, the first side face 204 of the second clicker 20 is rotated in the direction DXY1 parallel to the X direction and the Y direction of the Y direction by the rotational moment MXY1 (FIG. 25) centering on the vicinity of the central axis CC. The movement of the second cassette 20 due to the rotational moments MXY1 and MXY2 becomes larger as it moves away from the central axis CC. Further, the rotational movement or shaking of the XZ plane or the XY plane centered on the three central axes CM, CC, and CN may also be regarded as rotational movement or shaking centering on the first central axis CC. This is because the first central axis CC is located at the center of the X directions of the three central axes CM, CC, and CN.

Similarly to the second cassette 20, the action of the external forces FP1 to FP3 or the rotational moments MXZ, MXY1, and MXY2 may be generated for the first cassette 10. However, since the second cassette 20 is a cassette for accommodating a plurality of types of ink, there is a tendency that the weight is larger than the first cassette 10. As a result, the second cassette 20 is greatly subjected to the inertial force generated by the acceleration and deceleration of the bracket 520, and the rotational moments MXZ, MXY1, and MXY2 also become large. In other words, the second cassette 20 may move largely as the carriage 520 moves back and forth. In the second cassette 20, it is necessary to try to maintain the contact between the device-side terminal group 799 and the contact portion cp as appropriate, and it is necessary to try to be different from the first cassette 10.

A-8. Movement restriction of the second cassette 20: A-8-1. External force FP2 and rotational torque MXZ Fig. 26 is a view for explaining a configuration for restricting movement of the second cassette 20. FIG. 27 is a view for explaining the movement restriction of the second cassette 20 in the X direction.

As shown in Fig. 26, in the mounted state of the second cassette 20, the click side engaging portion 235 (strictly speaking, the upper side of the click side engaging portion 235) and the lower side of the device side engaging portion 632A are provided. The face 633 is buckled. Thereby, for example, the movement of the second cassette 20 affected by the external force FP2 or the rotational moment MXZ (FIG. 24) can be reduced. Thereby, since the positional change of the contact portion cp of the circuit board 400 to the device-side terminal group 799 can be reduced, the contact between the contact portion cp of the circuit board 400 and the device-side terminal group 799 can be favorably maintained.

The influence of the rotational moment MXZ shown in FIG. 24 on the positional change of the contact portion cp may be disposed closer to the bottom surface 201 than the upper surface 202 of the second side surface 203, that is, disposed closer to the position of the contact portion cp. The positions of the liquid supply ports 280A, 280B, and 280C are suppressed. As described above, the movement of the second cassette 20 due to the rotational moment MXZ is farther away from the liquid supply ports 280A, 280B, 280C (strictly speaking, the liquid supply needle 640 and the sealing portion 287 of the valve mechanism 284) The contact area) becomes larger. The contact portion cp is disposed at a position close to the liquid supply ports 280A, 280B, 280C. Thereby, when the second cassette 20 is rotated in the direction DXY2 of the XY plane parallel to the X direction and the Y direction with the central axes CM, CC, and CN as the center, the positional variation of the contact portion cp can be reduced.

In the present embodiment, as shown in FIG. 23, one of the plurality of contact portions cp is located in the X direction, and the card side fastening portion 235 is located within the range WE. That is, in the X direction, the range WE overlaps partially with the range WA. Further, the engagement center CE is provided between the first center plane PC and the second center plane PN. With such a configuration, it is also possible to suppress the influence of the rotational moment MXZ on the positional variation of the contact portion cp. This reason will be described below using FIG. 24 .

A portion where the second side surface 203, the third side surface 205, and the upper surface 202 intersect is referred to as a corner portion L3. A portion where the second side surface 203, the fourth side surface 206, and the upper surface 202 intersect is referred to as a corner portion R3. When the second cassette 20 does not have the fastening member 230, the rotational moment MXZ generated by the acceleration and deceleration of the bracket 520 is substantially the same at the corner portion R3 and the corner portion L3. When the bracket 520 is folded back in the -X direction, the rotational moment MR3 of the rotational moment MXZ in the counterclockwise rotation in FIG. 24 is applied to the corner portion R3 (first case). Further, when the bracket 520 is folded back in the +X direction side, the rotational moment ML3 of the rotational moment MXZ in the clockwise rotation in FIG. 24 is applied to the corner portion L3 (the second case). The magnitude of the rotational moment MR3 is approximately the same as the magnitude of the rotational moment ML3. On the other hand, as described above with reference to Fig. 9, in the mounted state of the first cassette 10 and the second cassette 20, the interval D1 between the second cassette 20 and the cassette holder 60 is larger than the first cassette in the X direction. 10 is spaced from the second cassette 20 by D2. Thereby, the space in which the corner portion R3 can be rotated toward the fourth device side wall portion 606 side by the rotational moment MR3 is wider than the space in which the corner portion L3 can be rotated toward the third device side side wall portion 605 side by the rotational moment ML3. Therefore, there is a possibility that the corner portion R3 moves more significantly than the corner portion L3. In the present embodiment, as described above, the engagement center CE is provided between the first center plane PC and the second center plane PN. That is, the fastening center CE is located farther away from the corner portion R3. Thereby, the movement of the corner portion R3 due to the rotational moment MR3 can be more effectively restricted.

As shown in FIG. 23, the position of the contact portion cp due to the rotational moment MXZ is reduced in the XZ plane by a portion of the plurality of contact portions cp being located in the range WE in which the latching side engaging portion 235 is located in the X direction. Changes. Thereby, the contact of the contact portion cp with the device-side terminal group 799 can be favorably maintained.

As shown in FIG. 26, the second cassette 20 is rotated in the arrow RYZ direction around the liquid supply ports 280A, 280B, and 280C by receiving the force FP2 in the +Z direction. The rotation in the direction indicated by the arrow RYZ is rotated in the YZ plane parallel to the Y direction and the Z direction. Further, the rotation in the direction indicated by the arrow RYZ is such that the lower portion of the second side surface 203 is lifted in the +Z direction, and the upper portion of the first side surface 204 is rotated in the -Z direction. When the second cassette 20 is rotated in the arrow RYZ direction, the projections 262 and 263 abut against the apparatus-side bottom wall portion 601. Thereby, the rotation of the second cassette 20 in the direction of the arrow RYZ is restricted. As shown in Fig. 16, the projections 262 and 263 include a central axis CC of the liquid supply port 280B at the center, and are provided in such a manner as to be spaced apart from the plane PCP perpendicular to the X direction. Thereby, the rotation of the second cassette 20 in the direction of the arrow RYZ can be more reliably restricted.

As shown in Fig. 16, the three liquid supply ports 280A, 280B, and 280C are arranged on a straight line parallel to the X direction. Thereby, even if the second cassette 20 is rotated in the direction of the arrow RYZ shown in FIG. 26, the degree of penetration of the liquid supply needles 640A, 640B, and 640C into the three liquid supply ports 280A, 280B, and 280C or the intrusion prevention position can be prevented. Change with each supply port. Thereby, the connection of the liquid supply ports 280A, 280B, and 280C with the liquid supply needles 640A, 640B, and 640C can be favorably maintained, and the leakage of the liquid or the intrusion of the air into the liquid supply needles 640A, 640B, and 640C can be reduced.

A-8-2. External force FP1, FP3 As shown in Fig. 26, the force applied to the second direction of the second cassette 20 is the external force FP1 and the external force FP3, and the external force is only the external force FP3. External force FP3. As a result, the second cassette 20 is more likely to be affected by the force applied in the +Y direction than the -Y direction, and is more likely to move in the +Y direction. In the present embodiment, in the mounted state of the second cartridge 20, the restricting convex portion 282 (FIG. 14) on the +Y direction side of the center liquid supply port 280B is in contact with the device side regulating wall portion 615. Thereby, the movement of the second cassette 20 to the +Y direction side can be restricted. Thereby, the contact between the contact portion cp of the circuit substrate 400 and the device-side terminal group 799 can be favorably maintained.

As shown in FIG. 23, the influence of the external force FP1 and the external force FP3 on the positional change of the contact portion cp is also suppressed by the intersection of the central contact portion cpc and the first center plane PC. By the central contact portion cpc intersecting the first center plane PC, as shown in FIG. 26, the plurality of contact portions cp can be sandwiched by the center liquid supply port 280B and the device side terminal group 799. Thereby, the movement of the contact portion cp away from the device side terminal group 799 can be reduced. Thereby, the contact between the contact portion cp of the circuit substrate 400 and the device-side terminal group 799 can be favorably maintained.

As shown in FIG. 27, in the external force FP3, the movement of the liquid supply ports 280A, 280B, and 280C due to the components in the X direction may be moved in the X direction by the surrounding members 283A, 283B, and 283C and the device side regulating wall portion 615. The X direction is restricted. When the liquid supply ports 280A, 280B, and 280C are to be moved in the X direction, the surrounding members 283A, 283B, and 283C are in contact with the device side regulating wall portion 615. Thereby, the movement of the second cassette 20 in the X direction is restricted.

A-8-3. About the rotational moments MXY1 and MYX2 The influence of the rotational moment MXY2 shown in FIG. 25 is disposed on the bottom surface 201 by the liquid supply ports 280A, 280B, and 280C, and the contact portion cp is disposed closer to the first side surface 204. The position of the second side surface 203 is suppressed. As described above, the movement of the second click 20 due to the rotational moment MXY2 becomes larger as it goes away from the central axes CM, CC, and CN. The contact portion cp is disposed at a position close to the central axes CM, CC, and CN of the liquid supply ports 280A, 280B, and 280C. Thereby, when the second cassette 20 is rotated in the direction DXY2 of the XY plane parallel to the X direction and the Y direction with the central axes CM, CC, and CN as the center, the positional variation of the contact portion cp can be reduced.

The influence of the rotational moment MXY1 shown in FIG. 25 is inserted into the device side protrusion 638 by the concave portion 264 (FIG. 14) provided on the bottom surface 201 closer to the first side surface 204 than the second side surface 203 (FIG. 3, FIG. 5). ) and suppress. That is, by inserting the device side protrusion 638 into the concave portion 264, the movement of the second cassette 20 in the direction DXY1 can be restricted. Further, since the movement of the second cassette 20 in the direction DXY1 can be restricted, the movement of the second side surface 203 in the lateral direction DXY2 can be restricted. Thereby, the positional change of the contact portion cp can be suppressed, and the contact between the contact portion cp and the device-side terminal group 799 can be favorably maintained.

As shown in FIG. 23, the center contact portion cpc does not intersect the second center plane PN or the third center plane PC, but intersects with the first center plane PC. Thereby, the influence of the rotational moment MXY1 shown in FIG. 25 can be reduced. Hereinafter, the relationship between the position of the center contact portion cpc and the influence of the rotational moment MXY1 shown in FIG. 25 will be described in more detail.

Fig. 28 is a schematic view showing the second cassette 20V of the first reference example. Fig. 29 is a schematic view showing a second cassette 20W of the second reference example of the reference example. The difference between the second cassettes 20V and 20W of the reference example and the second cassette 20 of the present embodiment is the arrangement position of the circuit board 400 of the second side surface 203. In the second cassette 20V shown in FIG. 28, the circuit board 400 is disposed on the second side surface 203 at a position shifted to the +X direction side, and the center contact portion cpc of the circuit board 400 intersects with the second center plane PN. In the second cassette 20W (FIG. 29), the circuit board 400 is disposed on the second side surface 203 at a position on the −X direction side, and the center contact portion cpc of the circuit board 400 intersects the third center plane PL.

As shown in FIG. 28, when the circuit board 400 is placed on the side of the third side surface 205 (+X direction side), when the bracket 520 is accelerated in the +X direction, the portion of the corner portion R1 is large. Rotational moment MXY1t. By the rotational moment MXY1t, the second cassette 20V is largely rotated in the direction indicated by the arrow DXY1t. Further, the vicinity of the circuit board 400 is also largely rotated in the direction indicated by the arrow DXY2t. In other words, the positional variation of the contact portion cp on the circuit board 400 is increased.

As shown in FIG. 29, when the circuit board 400 is placed on the side of the fourth side surface 206 (the -X direction side), when the bracket 520 is accelerated in the +X direction, the portion of the corner portion L1 is large. Rotational moment MXY1w. By the rotation moment MXY1w, the second cassette 20W is largely rotated in the direction indicated by the arrow DXY1w. Further, the vicinity of the circuit board 400 is also largely rotated in the direction indicated by the arrow DXY2w. In other words, the positional variation of the contact portion cp on the circuit board 400 is increased.

On the other hand, in the embodiment shown in FIG. 25, the circuit board 400 is provided so that the center contact portion cpc does not intersect the second center plane PN or the third center plane PL and intersects with the first center plane PC. When the cassette 520 is accelerated in the +X direction or is accelerated in the -X direction, the same degree of rotational moment MXY1 is generated in the corner portions R1 and R2 of the second cassette 20. This rotational moment MXY1 is smaller than the rotational moment MXY1t shown in FIG. 28 and the rotational moment MXY1w shown in FIG. As a result, in the second cassette 20 of the present embodiment, the positional change of the contact portion cp when the bracket 520 is accelerated in the +X direction can be made smaller than the second cassette 20V. Moreover, the positional change of the contact portion cp when the carriage 520 is accelerated in the -X direction can be made smaller than the second cassette 20W. Thereby, the contact between the contact portion cp of the circuit substrate 400 and the device-side terminal group 799 can be favorably maintained.

A-8-4. Regarding the rotational moments MXZ and MXY As shown in Fig. 23, the plurality of contact portions cp are arranged symmetrically in the X direction with the first center plane PC as the center. When the second cassette 20 is rotated about the vicinity of the first central axis CC by the rotational moment MXZ (Fig. 24) or the rotational moment MXY2, it is located farthest from the first center plane in the +Z direction or the ±X direction. There is a possibility that the positional change of the contact portion cp at the position of the PC becomes maximum. When the magnitude of the positional change of the contact portion cp located at the position farthest from the first center plane PC in the +Z direction or the ±X direction is the maximum fluctuation amount, the plurality of contact portions cp can be used to set the first center plane PC. The maximum variation amount in the case where the X-direction is symmetrically arranged is suppressed to be smaller than the maximum variation amount in the case where the plurality of contact portions cp are asymmetrically arranged in the X direction with respect to the first center plane PC.

The configuration in which the movement of the second cassette 20 due to the X-direction component of the rotational torque MXZ, MXY or the external force F3 is restricted will be described with reference to FIGS. 30 to 32. Figure 30 is a cross-sectional view taken along line 30-30 of Figure 23. Figure 31 is a schematic view of a portion surrounded by a corner R30 of Figure 30. Figure 32 is a partial cross-sectional view taken along line 32-32 of Figure 23. 30 and 32 also show the cross section of the cassette holder 60 and the first cassette 10 in the mounted state of the second cassette 20.

As shown in FIG. 30, the guiding convex portion 617 in the mounted state is received in the concave portion 258. As shown in FIG. 14, the recess 258 extends from the bottom surface 201 side to the upper surface 202. The guiding convex portion 617 is received in the concave portion 258, and in the mounted state, the surface 258fa of the concave portion 258 facing the -X direction abuts against the guiding convex portion 617. Thereby, in the mounted state, the second cassette 20 is restricted from moving to the -X direction side. Therefore, the positional change of the contact portion cp can be suppressed, and the contact between the contact portion cp and the device-side terminal group 799 can be favorably maintained.

The second cassette 20 has a concavo-convex portion 257 that is fitted to the cassette identifying convex portion 616. The uneven portion 257 extends from the bottom surface 201 side of the first side surface 204 toward the upper surface 202 side. Thereby, in the mounted state, the second cassette 20 can be restricted from moving in the XY plane orthogonal to the Z direction. In the present embodiment, since the convex portion 616 of the concave-convex portion 257 is used to sandwich the locking convex portion 616 in the X direction, the second cassette 20 can be restricted from moving in the X direction. Therefore, the positional change of the contact portion cp can be suppressed, and the contact between the contact portion cp and the device-side terminal group 799 can be favorably maintained.

In the mounted state, the partition wall 604R abuts on the third side surface 205. Thereby, the second cassette 20 can be restricted from moving in the +X direction in the mounted state. Therefore, the positional change of the contact portion cp can be suppressed, and the contact between the contact portion cp and the device-side terminal group 799 can be favorably maintained.

As shown in FIG. 31, the first side portion 246B and the second side portion 246A (FIG. 23) of the first protruding surface portion 246 are located between the first restricting portion 635A and the second restricting portion 635B (FIG. 4). In other words, the first protruding surface portion 246 is disposed at a position sandwiched by the first regulating portion 635A and the second regulating portion 635B in the X direction. Thereby, since the second side surface 203 side of the second cassette 20 can be restricted from moving in the X direction in the mounted state, the positional variation of the contact portion cp can be suppressed. Thereby, the contact of the contact portion cp with the device-side terminal group 799 can be favorably maintained.

As shown in FIG. 4, the first restricting portion 635A and the second restricting portion 635B are provided in the cassette attaching portion 602, and are provided in a space facing the first surface portion 242 and the second surface portion 241 in the Y direction. In the present embodiment, the size (thickness) of the first restricting portion 635A and the second restricting portion 635B in the Y direction is increased by the space, and the rigidity of the first restricting portion 635A and the second restricting portion 635B is increased. In the present embodiment, the movement of the first protruding portion 246 can be restricted by the first restricting portion 635A and the second restricting portion 635B having high rigidity, so that the positional variation of the contact portion cp can be further suppressed.

As shown in FIG. 23, the first protruding surface portion 246 is disposed between the first surface portion 242 and the second surface portion 241 in the X direction, and the central axis CC of the liquid supply port 280B is located in the range of the first protruding surface portion 246 in the X direction. Within W246. Thereby, the first restricting portion 635A and the second restricting portion 635B (FIG. 4) can be well balanced from both sides (the +X direction side and the -X direction side) of the first protruding surface portion 246 in the X direction in the X direction. The movement of the first protruding surface portion 246 is restricted. Therefore, the positional change of the contact portion cp can be suppressed, and the contact between the contact portion cp and the device-side terminal group 799 can be favorably maintained. Further, by this, the size of the first surface portion 242 and the second surface portion 241 in the X direction can be increased to some extent. As a result, the size of the first restriction portion 635A and the second restriction portion 635B in the X direction can be increased to some extent corresponding to the first surface portion 242 and the second surface portion 241, so that the first restriction portion 635A and the second restriction can be improved. The rigidity of the part 635B. In the present embodiment, since the movement of the first protruding portion 246 is restricted by the first restricting portion 635A and the second restricting portion 635B having high rigidity, the positional variation of the contact portion cp can be further suppressed.

As shown in FIG. 32, in the mounted state of the second cassette 20, the first projection 249 (FIG. 17) abuts against the first restriction wall surface 635fa (FIG. 5) of the first regulation portion 635A, and the second projection 248 (FIG. 17) The second restricting wall surface 635fb (FIG. 4) of the second restricting portion 635B is in contact with each other. Thereby, the first protruding surface portion 246 can be further restricted from moving in the X direction. Thereby, since the positional fluctuation of the contact portion cp can be further suppressed, the contact between the contact portion cp and the device-side terminal group 799 can be satisfactorily maintained.

As shown in FIG. 17, the first protrusions 249 and the second protrusions 248 are located on the upper surface 202 side of the contact portion cp of the circuit board 400 in the Z direction. In other words, the contact positions between the first projections 249 and the second projections 248 and the first restricting portions 635A and the second restricting portions 635B (FIGS. 4 and 5) are provided farther away from the liquid supply ports 280A, 280B, and 280C and the liquid supply. The positions of the contacts of the pins 640A, 640B, 640C. Thereby, the movement (shake) of the second cassette 20 due to the rotational moment MXZ in the direction DXZ (FIG. 24) can be reduced.

As shown in FIG. 17, the first projection 249 and the second projection 248 are located closer to the bottom surface 201 than the fastening member 230 in the Z direction. In other words, the contact position between the first projection 249 and the second projection 248 and the first restricting portion 635A and the second restricting portion 635B ( FIGS. 4 and 5 ) is provided closer to the contact portion cp than the engaging member 230 . Thereby, the movement (shake) of the second cassette 20 due to the rotational moment MXZ in the direction DXZ (FIG. 24) can be reduced.

A-9. Effect of the cassette group and the liquid ejecting system: According to the above embodiment, a plurality of (three types in the present embodiment) liquids are accommodated by the second cassette 20, and each of the plurality of liquids is accommodated separately. One type of cassette can miniaturize the cassette group 5 or the liquid ejection system 90. Further, by replacing the second cassette 20 that accommodates a plurality of types of liquids, the replacement procedure or frequency can be reduced as compared with the case of replacing the cassettes containing the various liquids. Further, the cassette group 5 has a liquid-liquid type first cassette 10 in which the liquid absorber 299 is not accommodated, and a liquid absorber type second cassette 20 in which the liquid absorber 299 is housed. By using two types of cassettes, it is possible to utilize the advantages of a liquid absorbent body which is simple in construction and low in cost, and a straight liquid type which is slightly complicated in construction but suitable for high speed printing.

In the present embodiment, the first cassette 10 is a straight liquid type cassette. Thereby, even when the liquid of the first cassette 10 is supplied to the head 540 at a high speed, the inflow of the air bubbles is small, and the liquid can be smoothly ejected from the head 540. On the other hand, the second cassette 20 is a liquid absorber type cassette. Therefore, if the liquid of the second cassette 20 is to be supplied to the head 540 at a high speed, the ink flow in the liquid absorber 299 cannot catch up with the supply speed of the ink, and the ink layer in the liquid absorber 299 may be separated by the air. Sex. As a result, there is a possibility that the amount of ink (residual ink amount) remaining in the liquid absorber 299 is not supplied to the side of the head 540. Further, the flow of the ink in the liquid absorbing body 299 is interrupted by the air, and the air bubbles flow into the nozzle 540. In the present embodiment, the first liquid cartridge type first cartridge 10 for accommodating black ink is used for high speed printing and low speed printing, and the liquid absorbing body type second cartridge 20 for accommodating color ink is used only for low speed printing. Thereby, high-speed printing using black ink can be performed, and the amount of residual ink of the second cassette 20 can be reduced. Further, since it is possible to reduce the possibility of discharging air bubbles from the second cartridge 20 to the head 540, it is possible to suppress a decrease in printing quality.

Moreover, according to the above embodiment, the cassette holder 60 includes the first attachment portion 602W and the second attachment portion 602T. In other words, the liquid ejecting system 90 of the present embodiment is configured on the premise that the two types of cassettes 10 and 20 are attached to the specific mounting portions 602W and 602T, respectively, so that the structure of the liquid ejecting apparatus 50 can be prevented from becoming complicated.

Moreover, according to the above-described embodiment, the ink containing the pigment (pigment ink) is stored in the first liquid cartridge first cartridge 10, and the dye ink is stored in the second cartridge 20 of the liquid absorber type. Although the pigment is likely to settle, the first cartridge 10 does not contain the liquid absorber. Therefore, even when the pigment is settled, the first cartridge 10 can be easily dispersed by applying vibration. Since the dye ink is used for the liquid absorbing body type second cartridge 20, the problem of sedimentation like the ink containing the pigment does not occur. Thereby, the possibility that the ink concentration ejected from the liquid ejecting apparatus 50 is deviated can be reduced. Moreover, by using the black ink accommodated in the first cassette 10 as the pigment ink, it is more difficult to be infiltrated than the dye ink when printed on plain paper. On the other hand, by using the color ink accommodated in the second cassette 20 as the dye ink, the color rendering property in the case of printing on the special paper can be improved. That is, according to the present embodiment, by performing high-definition printing on a plain paper at a high speed, color printing can be performed on a special paper at a low speed, and it can correspond to various types of printing.

Further, the first type of ejection port portion 544D that ejects the liquid of the first cassette 10 is larger than the maximum amount of emission that can be emitted per unit time by the second type of ejection port portions 544A, 544B, and 544C that discharge the liquid of the second cassette 20. (Figure 8). Thereby, the ink of the first cassette 10 can be used for high speed printing. Further, since the second cartridge 20 is used for low-speed printing, the possibility that the ink flow in the liquid absorber 299 is broken by the air can be reduced.

B. Other Embodiments The present invention is not limited to the above-described embodiments or embodiments, and various modifications may be made without departing from the spirit and scope of the invention.

B-1. Card Using Adapter: Fig. 33 is a view for explaining the second cassette 20a using the adapter 270. The second cassette 20a has an outer groove 2002, a tube 2001, and an adapter 270. The outer tank 2002 and the pipe 2001 are shown one by one in FIG. 33, but are actually provided in units of three in order to supply ink to the second liquid storage chambers 200A, 200B, and 200C.

The adapter 270 is interchangeable with the second cartridge 20 of the above-described embodiment, and is detachable from the second mounting portion 602T of the cartridge 60. The adapter 270 is different from the second cassette 20 in that the ink is supplied from the external groove 2002 via the tube 2001. The adapter 270 has three openings on the upper surface 202 for connecting the tubes 2001 to the second liquid storage chambers 200A, 200B, and 200C.

The three external tanks 2002 (only one is shown in FIG. 33) accommodates three types of liquids (yellow ink, magenta ink, and cyan ink) supplied to the second liquid storage chambers 200A, 200B, and 200C. . The three tubes 2001 (only one is shown in FIG. 33) allow the corresponding second liquid storage chambers 200A, 200B, and 200C to communicate with the outer tub 2002. If the liquid in the outer tank 2002 is used up, it is replaced with a new outer tank 2002 or the external tank 2002 is replenished with liquid. The adapter 270 can accommodate three kinds of liquids in the second liquid storage chambers 200A, 200B, and 200C in advance, and can be accommodated by supplying the liquid from the external tank 2002.

Fig. 34 is a view for explaining the second cassette 20b using the adapter 270b. The same components as those of the second cassette 20a (FIG. 33) are denoted by the same reference numerals, and description thereof will be omitted as appropriate.

The second cassette 20b has an outer groove 2002, a tube 2001b, and an adapter 270b. The outer tank 2002 and the tube 2001b are shown one by one in Fig. 34, but are actually provided in units of three in order to supply ink to the second liquid supply needles 640A, 640B, and 640C.

The adapter 270b is interchangeable with the second cartridge 20 of the above-described embodiment, and is detachable from the second mounting portion 602T of the cartridge 60. The adapter 270b has, for example, a circuit board 400 or a fastening member 230 in order to ensure compatibility with the second cassette 20. The adapter 270b does not have the second liquid storage chambers 200A, 200B, and 200C, the upper surface 202, the third side surface 205, and the fourth side surface 206. The bottom surface 201 of the adapter 270b is formed into three openings so that the three liquid supply needles 640A, 640B, and 640C can be inserted.

The three tubes 2001b (only one of which is shown in Fig. 34) are directly connected to the liquid supply needles 640A, 640B, and 640C. Thereby, the liquid (yellow ink, magenta ink, and cyan ink) is directly supplied to the liquid supply needles 640A, 640B, and 640C from the outer tank 2002 via the tube 2001b. If the liquid in the outer tank 2002 is used up, it is replaced with a new outer tank 2002 or the external tank 2002 is replenished with liquid. Further, if the adapter 270b is configured such that the tube 2001b can be directly connected to the liquid supply needles 640A, 640B, and 640C, other configurations may be employed. For example, the adapter 270b may not have at least one surface of the upper surface 202, the third side surface 205, and the fourth side surface 206. When the adapter 270b has the upper surface 202, an opening through which the tube 2001b is inserted may be provided on the upper surface 202.

B-2. Other embodiments relating to the shape of the second cassette: In the above embodiment, the outer casing 21 of the second cassette 20 has a substantially rectangular parallelepiped shape (Fig. 13), but the shape is not limited thereto. That is, the shape of the outer casing (upper surface, bottom surface, and side surface) of the second cassette may not be completely rectangular. It may also be a rectangle with a round corner and a rectangular, elliptical or oblong shape with a concave and convex portion on one side of the side. Hereinafter, other embodiments related to the shape of the second cassette will be described.

Figure 35 is a conceptual diagram of the second cassette 20c. The second cassette 20c is interchangeable with the second cassette 20 and is detachable from the second mounting portion 602T. The outer casing 21c of the second cassette 20c has a rectangular shape with a rounded corner when viewed from the side of the fourth side 206. Further, the second cassette 20c has the engaging member 230 and the circuit board 400 on the second side surface 203 side. Further, liquid supply ports 280A, 280B, and 280C are provided on the bottom surface 201 side of the second cassette 20c. Further, when the second cassette 20c is viewed from the side of the first surface 204, it has a constant width.

Figure 36 is a conceptual diagram of the second cassette 20d. The second cassette 20d has compatibility with the second cassette 20 and is detachable from the second mounting portion 602T. The outer casing 21d of the second cassette 20d has a substantially rectangular parallelepiped shape similarly to the outer casing 21 of the second cassette 20 (FIG. 13). The larger difference from the second cassette 20 is that the one of the second side faces 203 has a recess 213. The concave portion 213 is formed from the third side surface 205 to the fourth side surface 206. As described above, when the second cassette 20d and the second cassette 20 are interchangeable, the recessed portion may be provided on at least one surface of each surface of the outer casing 21d. Moreover, when the second cassette 20d and the second cassette 20 are interchangeable, the convex portion may be provided on at least one surface of each surface of the outer casing 21d.

Figure 37 is a conceptual diagram of the second cassette 20e. The second cassette 20e is interchangeable with the second cassette 20 and is detachable from the second mounting portion 602T. The outer casing 21e of the second cassette 20e has a substantially rectangular parallelepiped shape similarly to the outer casing 21 of the second cassette 20 (FIG. 13). The larger difference from the second cassette 20e is that the corner portion where the upper surface 202 and the second side surface 203 intersect is recessed in the -Z direction and the +Y direction, and the bottom surface 201 is inclined in the horizontal direction. As described above, when the second cassette 20e and the second cassette 20 are interchangeable, at least one of the faces of the outer casing 21e may be inclined, or at least a part of each surface may be recessed in a notch manner.

B-3. Part 2 of the second cassette having the movable portion: The outer casing 21 of the second cassette 20 of the above embodiment is integrally formed, but is detachable from the second cassette 20, and is detachable from the second mounting portion. 602T may also be constructed in such a manner that the outer casing 21 is moved. Hereinafter, other specific embodiments will be described.

Figure 38 is a conceptual diagram of the second cassette 20f. The second cassette 20f is interchangeable with the second cassette 20 and is detachable from the second mounting portion 602T. The first protruding surface portion 246 of the second cassette 20f is movable to the outer casing 21f. The first protruding surface portion 246 of the second cassette 20f is connected to the second side surface 203 by a spring 88. When the second hook 20f is attached to the second mounting portion 602T, the first protruding surface portion 246 is moved to the second side surface 203 side by compressing the spring 88, and the first protruding surface portion 246 can be disposed in the first restricting portion. Between 635A and the second restriction portion 635B (FIG. 4).

Figure 39 is a conceptual diagram of the second cassette 20g. The second cassette 20g is interchangeable with the second cassette 20 and is detachable from the second mounting portion 602T. The first protruding surface portion 246 of the second cassette 20g is movable with respect to the outer casing 21g. In the first protruding surface portion 246 of the second cassette 20g, the one end portion is supported by the hinge 89 provided on the second side surface 203, and the other end portion is rotatable by the hinge 89 as a fulcrum. When the second cassette 20g is attached to the second mounting portion 602T, the first protruding portion 246 is brought into contact with the second side surface 203 by the hinge 89 as a fulcrum, and the first protruding surface portion 246 is brought into contact with the second protruding surface 203. 246 is disposed between the first restriction portion 635A and the second restriction portion 635B (FIG. 4).

Figure 40 is a conceptual diagram of the second cassette 20h. The second cassette 20h is interchangeable with the second cassette 20 and is detachable from the second mounting portion 602T. The protruding surface portion 245 of the second cassette 20h is movable with respect to the housing 21h. The protruding surface portion 245 of the second cassette 20g is connected to the second side surface 203 by a spring 88. When the second cassette 20g is attached to the second attachment portion 602T, the spring 88 is compressed to move the protruding surface portion 245 to the second side surface 203 side. Thereby, the first protruding surface portion 246 can be disposed between the first restricting portion 635A and the second restricting portion 635B (FIG. 4), and the snap-side engaging portion 235 of the engaging member 230 and the device-side engaging portion can be provided. 632A buckled.

B-4. Two-body type cassette: The second cassette 20-type housing 21 of the above embodiment is integrally formed with the second liquid storage chambers 200A, 200B, and 200C. However, if it is interchangeable with the second cassette 20, it can be attached or detached. The second mounting portion 602T may be configured as a two-body type cassette composed of two elements. The following describes the two-body type cassette.

Figure 41 is a conceptual diagram of a two-body type second cassette 20i. Fig. 42 is a schematic view showing a second type of second cassette 20i. The second cassette 20i and the second cassette 20 are interchangeable and can be attached to and detached from the second mounting portion 602T. The second cassette 20i has a case member 277 and a housing member 278. The accommodating member 278 has the second liquid accommodating chambers 200A, 200B, and 200C therein, and when the liquids of the second liquid accommodating chambers 200A, 200B, and 200C are used up, the accommodating member 278 is replaced with a new or replenishing liquid.

The outer casing 21i of the second cassette 20i is constituted by a combination of the outer casing 277i of the casing member 277 and the outer casing 278i of the housing member 278. The accommodating member 278 includes a fastening member 230 and liquid supply ports 280A, 280B, and 280C in addition to the second liquid storage chambers 200A, 200B, and 200C. The outer casing 278i of the housing member 278 is provided with faces 201i to 206i corresponding to the respective faces 201 to 206 of the second cassette 20i. The bottom surface 201i faces the upper surface 202i in the Z direction, the second side surface 203i and the first side surface 204i face in the Y direction, and the third side surface 205i and the fourth side surface 206i face each other in the X direction. The bottom surface 201i is located on the -Z direction side, and the upper surface 202i is located on the +Z direction side. The second side surface 203i is located on the -Y direction side, and the first side surface 204i is located on the +Y direction side. The third side surface 205i is located on the +X direction side, and the fourth side surface 206i is located on the -X direction side. A fastening member 230 is provided on the second side surface 203i, and liquid supply ports 280A, 280B, and 280C are provided on the bottom surface 201i.

The outer casing 277i of the casing member 277 is provided with a surface corresponding to the bottom surface 201, the upper surface 202, the first side surface 204, the second side surface 203, and the third side surface 205 of the second cassette 20i. The surface corresponding to the fourth side surface 206 of the second cassette 20i serves as an opening 206. The first protruding surface portion 246 and the circuit board 400 are provided on the second side surface 203. An opening 292 having an opening in the -X direction and the Z direction is formed on the bottom surface 201. The liquid supply ports 280A, 280B, and 280C are inserted into the opening 292 (Fig. 42). An opening 293 having an opening in the -X direction and the Y direction is formed on the second side surface 203. The opening member 293 is inserted into the fastening member 230 (FIG. 42).

Figure 43 is a conceptual diagram of a two-body type second cassette 20j. Fig. 44 is a schematic view showing a second type of second cassette 20j. The second cassette 20j is interchangeable with the second cassette 20 and is detachable from the second mounting portion 602T. The second cassette 20j has a case member 279 and a housing member 278. Since the housing member 278 and the second cassette 20i are the same housing member 278 (FIG. 41), description thereof will be omitted.

The outer casing 21j of the second cassette 20j is constituted by a combination of the outer casing 279j of the casing member 279 and the outer casing 278i of the receiving member 278. The case member 279 has a surface corresponding to the first side face 204, the bottom face 201, and the second side face 203. The surface corresponding to the upper surface 202, the third side surface 205, and the fourth side surface 206 is an opening. Further, the second side surface 203 is formed only in the -Z direction side portion connected to the bottom surface 201, and the +Z direction side portion is not formed. On the bottom surface 201, an opening portion 292j penetrating through the Z direction is formed through which the liquid supply ports 280A, 280B, and 280C are inserted. By moving the accommodation member 278 from the +Z direction side to the -Z direction side of the case member 279, the liquid supply ports 280A, 280B, and 280C are inserted into the opening 292j to form the second cassette 20j (FIG. 44). .

B-5. Other Embodiments of the Closing Member 230: The engaging member 230 of the second cassette 20 is a member that is elastically connected to the second side surface 203 (FIG. 13), but is fastened to the device side. For the portion 632A (Fig. 4), other configurations are also possible. Hereinafter, a specific example will be described.

Fig. 45 is a view for explaining the second cassette 20k. Different from the second cassette 20, the second protruding surface portion 247 extends to a portion where the upper surface 202 intersects the second side surface 203, and the fastening member 230k is not elastically deformed. The second cassette 20k and the second cassette 20 are interchangeable and can be attached to and detached from the second mounting portion 602T. The fastening member 230k is a solid member that protrudes from the second protruding surface portion 247 in the -Y direction. The fastening member 230k has a snap side fastening portion 235. Further, instead of the engaging member 230k, a protrusion that protrudes in the -Y direction from the second side surface 203 or the second protruding surface portion 247 may be provided, and the protrusion may function as the click side engaging portion 235.

Fig. 46 is a view for explaining the second cassette 201. The second side surface 203l has a recessed portion 233, a configuration of the engaging member 230k, and a spring 234, which is different from the second latch 20. The second cassette 20l is interchangeable with the second cassette 20 and is detachable from the second mounting portion 602T. The concave portion 233 is formed on the second side surface 203l on the side closer to the upper surface 202 than the portion on which the circuit board 400 is disposed. The concave portion 233 has a shape recessed in the +Y direction, and the -Y direction side is open. The second cassette 20l has a spring 234 that connects the surface of the concave portion 233 on the +Y direction side with the engaging member 230k. The fastening member 230k is movable in the Y direction by the spring 234. That is, the fastening member 230k may be located inside the recess 233 or on the outer side of the recess 233. The engaging member 230k is configured to be movable in the Y direction, and the snap-side engaging portion 235 can be easily engaged with the device-side engaging portion 632A (FIG. 5) and the buckle can be released. Further, the engaging member 230k of the second cassette 20l has the same configuration as the engaging member 230k of the second cassette 20k.

Figure 47 is a view for explaining the second cassette 20m. Different from the second cassette 20k (Fig. 45), the fastening member 230k can be separated from the outer casing 21. The second cassette 20m is interchangeable with the second cassette 20 and is detachable from the second mounting portion 602T. The engagement member 230k of the second cassette 20m has the same configuration as the engagement member 230k of the second cassette 20k. For example, after the outer casing 21 is attached to the second attachment portion 602T, the fastening member 230k is inserted into the second installation so that the snap-side engaging portion 235 of the engaging member 230k and the device-side engaging portion 632A are engaged. The part 602T can be. Further, the fastening member 230k and the second protruding surface portion 247 may have guide rails that extend in the Z direction and are fitted to each other. The guide member 230k can be easily guided to the locking position in the second mounting portion 602T by the guide rail.

B-6. Other Embodiments of the Card Side Terminal Group: FIGS. 48 to 50 are views showing other embodiments of the terminal shape of the circuit board. The circuit boards 400a to 400c differ only in the surface shape of the circuit board 400 and the cassette side terminals 431 to 439 shown in FIG. The circuit boards 400a and 400b of FIGS. 48 and 49 are not substantially rectangular in shape and have an irregular shape. In the circuit board 400c of Fig. 50, nine card-side terminals 431 to 439 are arranged in a row, and mounting detection terminals 435 and 439 are disposed at both ends thereof. Further, the mounting detection terminals 431 and 434 are disposed between the mounting detecting terminal 435 and the power supply terminal 436, and between the mounting detecting terminal 439 and the data terminal 438. Among the circuit boards 400a to 400c, the arrangement of the contact portions cp corresponding to the device-side terminals of the respective card-side terminals 431 to 439 is the same as that of the circuit board 400 of Fig. 21 . As described above, as the surface shape of each of the latch-side terminals, various changes can be made as long as the arrangement of the contact portions cp is the same.

Fig. 51 is a view showing another embodiment of the terminal shape of the circuit board. The circuit board 400d shown in FIG. 51 is provided with a contact portion cp of the cassette-side terminals 436, 437, and 438 on a surface 400fc orthogonal to the surface 400fa. The face 400fc is the face in the -Z direction. As described above, as long as the arrangement of the contact portions cp is the same, one of the plurality of contact portions cp may not be provided on the surface 400fa.

B-7. Other Embodiments of the Cartridge: In the above embodiment, the first cartridge 10 attached to the first mounting portion 602W and the second cartridge 20 attached to the second mounting portion 602T are provided in the circuit board 30. The contact portion group including the plurality of contact portions cp and the contact portion group including the plurality of contact portions cp of the circuit board 400 may be disposed at different positions in the Z direction. When the contact portion group of the circuit board 30 and the contact portion group of the circuit board 400 are shifted in the Z direction at different positions in the Z direction, the range of the Z direction in which the contact group is located may be partially overlapped in the Z direction. Therefore, when the first cassette 10 is erroneously attached to the second mounting portion 602T, the second mounting portion 602T and the contact mechanism 70A can be prevented from being electrically connected. Thereby, the possibility of damage to the memory device or the circuit of the circuit board 30 can be reduced.

In the above embodiment, the cassettes of the plurality of liquid storage chambers 200A to 200C partitioned by the partition walls 22 and 23 are used as the second cassette 20, but a plurality of cassettes having one liquid storage chamber may be joined or the like. The integrated card is used as the second cassette.

In the above embodiment, the first cartridge 10 does not have the liquid absorber 299, but may have the liquid absorber 299. Further, the second cassette 20 may or may not have the liquid absorber 299. Further, the first cassette 10 accommodates the pigment ink, but may also contain the dye ink. Further, the second cassette 20 contains the dye ink, but may also contain the pigment ink.

The present invention is not limited to the ink jet printer and the cassette used in the printer, and can be applied to any liquid ejecting apparatus that ejects liquid other than ink and a cassette used for the liquid ejecting apparatus. For example, it can be applied to various liquid ejecting apparatuses and their cassettes as follows. (1) Image recording device (2) such as a facsimile device, etc. (2) An organic EL (Electro Luminescence) is formed by a toner ejecting device (3) used for producing a color filter for an image display device such as a liquid crystal display. An electrode material ejecting apparatus (4) used for an electrode such as a display or a field emission display (FED) sprays a liquid ejecting apparatus (5) containing a liquid of a bioorganic substance used for manufacturing a biochip as a precision pipetting Pipe sample ejection device (6) Lubricating device for lubricating oil (7) Spraying device for resin liquid (8) For the purpose of forming a liquid ejecting device (9) for precise mechanical lubrication of a watch or a camera, etc. A liquid ejecting apparatus (10) for ejecting an acidic or alkaline etching liquid for etching a substrate or the like by a liquid ejecting apparatus (10) for ejecting a transparent resin liquid such as an ultraviolet curable resin liquid onto a substrate, such as a micro hemispherical lens (optical lens) such as a communication element (11) A liquid ejecting apparatus having a liquid ejecting head that ejects any other minute amount of liquid droplets.

In addition, "droplet" refers to the state of the liquid ejected from the liquid ejecting apparatus, and also includes a granular, tear-like, or silky tail. Further, the term "liquid" as used herein may be any material that can be ejected by a liquid ejecting apparatus. For example, "liquid" is a material that is in a state in which the substance is in a liquid phase, such as a material having a higher or lower viscosity state, and a sol, gel water, other inorganic solvent, organic solvent, solution, or liquid. The material of the liquid state of the resin or the liquid metal (metal melt) is also included in the "liquid". Further, not only a liquid as a state of a substance but also a particle containing a functional material such as a pigment or a metal particle, which is dissolved, dispersed or mixed with a solvent, is also included in the "liquid". Moreover, as a representative example of the liquid, an ink, a liquid crystal, or the like as described in the above embodiment is exemplified. Here, the ink includes various liquid compositions such as general aqueous inks and oil-based inks, and gel inks and hot melt adhesive inks.

The present invention is not limited to the above-described embodiments, examples, and modifications, and various modifications can be made without departing from the spirit and scope of the invention. For example, the technical features of the embodiments, the examples, and the modifications corresponding to the technical features in the respective aspects described in the section of the invention are intended to solve some or all of the above problems, or to achieve one of the above effects or All, and can be replaced or combined as appropriate. Further, if the technical features are not described as necessary in the present specification, they can be appropriately removed.

5‧‧‧Carson Group

10‧‧‧1st card

12‧‧‧ Shell

13‧‧‧ upper surface

14‧‧‧ bottom

15‧‧‧Back

16‧‧‧ positive

17‧‧‧ left side

18‧‧‧ right side

19‧‧‧Atmospheric introduction

20, 20a ~ 20m, 20V, 20W‧‧‧ second card

21, 21c, 21d, 21e, 21f, 21g, 21h, 21i, 21j‧‧‧ shell

22, 23‧‧‧ partition wall

30‧‧‧ circuit board

31‧‧‧匣 side terminal

50‧‧‧Liquid injection device

60‧‧‧Calé

70, 70A, 70B‧‧‧ contact mechanism

71～79‧‧‧terminal

89‧‧‧ Hinges

90‧‧‧Liquid injection system

100‧‧‧1st liquid containment room

120‧‧‧fastening components

122‧‧‧Card side fastening

142‧‧‧Connected holes

150‧‧‧ valve mechanism

153‧‧‧ valve body

155‧‧‧Pushing members

180‧‧‧Liquid supply port

183‧‧‧film

188‧‧‧ openings

200, 200A, 200B, 200C‧‧‧ second liquid containment room

201, 201i‧‧‧ bottom

202, 202i‧‧‧ upper surface

203, 203i‧‧‧ second side

204, 204i‧‧‧ first side

205, 205i‧‧‧ third side

206, 206i‧‧‧4th side

213, 221, 222‧‧ ‧ recess

230, 230k‧‧‧ fastening components

231‧‧‧1st end

232‧‧‧2nd end

233‧‧‧ recess

235‧‧‧Kart side fastening

241‧‧‧2nd face

242‧‧‧1st face

245‧‧‧High face

246‧‧‧1st protruding face

246A‧‧‧2nd side

246B‧‧‧1st side

247‧‧‧2nd protruding face

248‧‧‧2nd protrusion

249‧‧‧1st protrusion

250‧‧‧ convex

252‧‧‧ recess

257‧‧‧

258‧‧‧ recess

258fa, 258fb‧‧‧

262‧‧‧1st protrusion

263‧‧‧2nd protrusion

264‧‧‧ recess

270, 270b‧‧‧ adapter

277‧‧‧Box components

277i‧‧‧shell

278‧‧‧ Containing components

278i‧‧‧shell

279‧‧‧Box components

279j‧‧‧Shell

280‧‧‧liquid supply port

280A‧‧‧liquid supply port

280B‧‧‧Liquid supply port (central liquid supply port)

280C‧‧‧Liquid supply port

282‧‧‧Restricted convex

283A, 283B, 283C‧‧‧ surrounding components

284‧‧‧Valve mechanism

285‧‧‧Pushing members

286‧‧‧ valve body

287‧‧‧ Sealing Department

288‧‧‧ openings

289‧‧‧Liquid Supply Department

292, 292j‧‧‧ openings

293‧‧‧ openings

299‧‧‧Liquid absorber

400, 400a ~ 400d‧‧‧ circuit board

400fa‧‧‧ surface

400fb‧‧‧back

401‧‧‧ hub

402‧‧‧ Hubhole

405‧‧‧End of the substrate

431～439‧‧‧匣 side terminal

439P‧‧‧2nd outer part

499‧‧‧匣 side terminal group

510‧‧‧Control Department

515‧‧‧Print media

517‧‧‧Flexible cable

520‧‧‧ bracket

522‧‧‧Bracket motor

524‧‧‧Drive belt

532‧‧‧Transport motor

534‧‧‧ pressure plate

540‧‧‧ sprinkler

542‧‧‧ lower surface

544A, 544B, 544C‧‧‧2nd type of injection department

544D‧‧‧1st type of injection department

546, 546A, 546B, 546C, 546D‧‧‧ shots

601‧‧‧The bottom side of the device

602‧‧‧Carmen Installation Department

602T‧‧‧Second Installation Department

602W‧‧‧1st Installation Department

603‧‧‧1st side wall side

604‧‧‧2nd side wall side

604R‧‧‧

605‧‧‧3rd side wall side

606‧‧‧4th side wall side

611‧‧‧Area

615‧‧‧ device side restraint wall

616‧‧‧Cars identification convex

617‧‧‧Guiding convex

632, 632A, 632D‧‧‧ device side fastening

633‧‧‧ face

635‧‧‧Restrictions

635A‧‧‧1st Restriction

635B‧‧‧2nd Restriction

635C‧‧‧3rd Restriction

635fa‧‧‧1st restricted wall

635fb‧‧‧2nd restricted wall

635fc‧‧‧3rd restricted wall

635fd‧‧‧4th restricted wall

638‧‧‧ device side protrusion

640, 640A ~ 640D‧‧‧ liquid supply needle

642‧‧‧ front end

645‧‧‧ base end

701, 702‧‧ ‧ gap

703, 704‧‧‧ joint forming members

705‧‧‧Retaining components

710～790‧‧‧Device side terminal

790A‧‧‧Relay substrate

792‧‧‧ end

793‧‧‧End

799‧‧‧Device side terminal group

2001‧‧‧ tube

2001b‧‧‧ tube

2002‧‧‧External slot

CC‧‧‧ center axis (1st central axis)

CE‧‧‧Deduction Center

CM‧‧‧ central axis (3rd central axis)

CN‧‧‧Center axis (2nd central axis)

Cp‧‧‧Contacts

Cpc‧‧‧Central Contact

CT‧‧‧ center axis

CX‧‧‧ central axis

FLA ~ FLD‧‧‧ flow path

FM‧‧‧ film

FP1～FP3‧‧‧ External force

L1‧‧‧ corner

L2‧‧‧ corner

L3‧‧‧ corner

ML3‧‧‧Rotating torque

MR3‧‧‧Rotating torque

MXY1‧‧‧Rotating torque

MXY1t‧‧‧Rotating torque

MXY1w‧‧‧Rotating torque

MXY2‧‧‧Rotating torque

MXZ‧‧‧Rotating torque

PC‧‧‧1st center face

PCP‧‧‧ plane

PL‧‧‧3rd center face

PN‧‧‧2nd center face

R1‧‧‧ corner

R2‧‧‧ corner

R3‧‧‧ corner

R30‧‧‧four corners

RN1‧‧‧1st terminal line

RN2‧‧‧2nd terminal line

W241‧‧‧Scope

W242‧‧‧Scope

W246‧‧‧Scope

WA‧‧‧Scope

WE‧‧‧ range

XCP‧‧‧Central

Fig. 1 is a perspective view showing the configuration of a liquid ejecting system. Figure 2 is a first plan view of the bracket. Figure 3 is a second plan view of the bracket. Figure 4 is a first perspective view of the bracket. Figure 5 is a second perspective view of the bracket. Fig. 6 is a first explanatory diagram for explaining the configuration of the contact mechanism. Fig. 7 is a second explanatory view showing the configuration of the contact mechanism. Figure 8 is a schematic view for explaining the head. Figure 9 is a cross-sectional view taken along line 9-9 of Figure 2. Figure 10 is a cross-sectional view taken along line 10-10 of Figure 2. Fig. 11 is a first perspective view of the first cassette. Fig. 12 is a second perspective view of the first cassette. Fig. 13 is a first perspective view of the second cassette. Fig. 14 is a second perspective view of the second cassette. Figure 15 is a plan view of the second cassette. Figure 16 is a bottom view of the second cassette. Figure 17 is a rear view of the second cassette. Figure 18 is a front view of the second cassette. Figure 19 is a left side view of the second cassette. Figure 20 is a right side view of the second cassette. Figure 21 is a front view of the circuit substrate. Figure 22 is a side view of the circuit substrate. Fig. 23 is a view for explaining the positional relationship of each element of the second cassette. Fig. 24 is a first view for explaining the force applied to the second cassette. Fig. 25 is a second diagram for explaining the force applied to the second cassette. Fig. 26 is a view for explaining the configuration for restricting the movement of the second cassette. Fig. 27 is a view for explaining the movement restriction in the X direction of the second cassette. Fig. 28 is a schematic view showing a second cassette of the first reference example. Fig. 29 is a schematic view showing a second cassette of the second reference example. Figure 30 is a cross-sectional view taken along line 30-30 of Figure 23. Figure 31 is a schematic view of a portion surrounded by the four corners of Figure 30. Figure 32 is a cross-sectional view taken along line 32-32 of Figure 23. Figure 33 is a view for explaining the second cassette using the adapter. Figure 34 is a view for explaining the second cassette using the adapter. Figure 35 is a conceptual diagram of the second cassette. Figure 36 is a conceptual diagram of the second cassette. Figure 37 is a conceptual diagram of the second cassette. Figure 38 is a conceptual diagram of the second cassette. Figure 39 is a conceptual diagram of the second cassette. Figure 40 is a conceptual diagram of the second cassette. Fig. 41 is a conceptual diagram of a second type of second type cassette. Fig. 42 is a schematic view showing the second type of the second type. Figure 43 is a conceptual diagram of a second type of second type cassette. Fig. 44 is a schematic view showing the second type of the second type. Figure 45 is a view for explaining the second cassette. Figure 46 is a view for explaining the second cassette. Figure 47 is a view for explaining the second cassette. Fig. 48 is a view showing another embodiment of the terminal shape of the circuit board. Fig. 49 is a view showing another embodiment of the terminal shape of the circuit board. Fig. 50 is a view showing another embodiment of the terminal shape of the circuit board. Fig. 51 is a view showing another embodiment of the terminal shape of the circuit board.

Claims (11)

A cassette which is attached to a holder of a liquid ejecting apparatus in parallel with another cassette having one liquid supply port, the liquid ejecting apparatus having the brackets arranged in three directions orthogonal to each other In the Z direction, the X direction, and the Y direction, it reciprocates in the X direction; a plurality of liquid supply needles are arranged side by side in the X direction in the bracket; and a device side terminal is disposed in the bracket; The cassette has: a bottom surface and an upper surface, which is equal to the opposite direction in the Z direction; the first side surface and the second side surface are equal to the opposite direction in the Y direction; and 3 or more odd liquid supply ports, which are equal to the X The direction is arranged side by side on the bottom surface closer to the second side surface than the first side surface, and each has a central axis along the Z direction; and a plurality of contact portions arranged side by side in the X direction on the second surface a position on the side surface closer to the bottom surface than the upper surface, wherein the liquid supply port receives the liquid supply needle, the contact portion and the device side in a state in which the cassette is attached to the bracket The second surface has a first surface, a second surface, and a protruding surface that protrudes toward the bracket side in the Y direction from the first surface and the second surface, wherein the first surface is located in the X One of the directions is the -X direction side, the second surface is located on the +X direction side in the other direction of the X direction, and the protruding surface is provided between the first surface and the second surface in the X direction. The protruding surface portion includes a central axis of the liquid supply port at the center of the three or more odd liquid supply ports, and intersects with a specific YZ plane orthogonal to the X direction, and the plural surface is disposed on the protruding surface In the mounting state of the contact portion, the first side portion on the -X direction side of the protruding surface portion and the second side portion on the +X direction side are located in two restricting portions provided in the bracket When the hook is viewed from the second side surface side toward the first side surface side in the Y direction, the center axis of the center liquid supply port is positioned above the protruding surface in the X direction. The center axis of the liquid supply port on the -X direction side of the liquid supply port in the center is in the range of the first face in the X direction, and is more in the range than the liquid supply port in the center. The central axis of the liquid supply port on the +X direction side is located above the X-direction in the range in which the second face is located. The cassette of claim 1 having a fastening member disposed on the second side surface at a position closer to the upper surface side than the plurality of contact portions, and in the mounted state, one of the fastening members is The cassette side fastening portion is fastened to a surface provided on a lower side of the device side fastening portion of the bracket. According to the card of claim 2, the first protrusion protruding in the -X direction is provided on the first side portion, and the second protrusion protruding in the +X direction is provided on the second side portion, The first projection and the second projection are located on the upper surface side of the contact portion in the Z direction, and are located on the bottom surface side of the fastening member, and the first projection and the first projection are in the mounted state. One of the two restricting portions abuts, and the second projection abuts against the other restricting portion of the two restricting portions. The card of claim 2 or 3, wherein the fastening member is disposed on the protruding surface. In the case of the first aspect of the present invention, the first protrusion protruding in the -X direction is provided, and the second protrusion protruding in the +X direction is provided on the second side portion, The first projection and the second projection are located on the upper surface side of the contact portion in the Z direction. In the mounted state, the first projection abuts against the restriction portion of the two restriction portions. The second projection abuts against the other restriction portion of the two restriction portions. The cassette according to any one of claims 1 to 5, wherein at least one of the concave portion and the convex portion which are disposed to be spaced apart from the protruding surface portion is provided on the first surface portion and the second surface portion. The cassette according to any one of claims 1 to 6, wherein the protrusion is provided on the bottom surface, and the protrusion is provided on the bottom surface at a position closer to the first side surface than the second side surface, wherein the protrusion includes the above Two central axes of the liquid supply port are provided so as to be perpendicular to the surface in the X direction. The cartridge according to any one of claims 1 to 7, wherein the central contact portion of the plurality of contact portions disposed at the center in the X direction includes a central axis of the liquid supply port at the center, and is perpendicular to the X direction Face to face. The cassette of claim 8, wherein the plurality of contact portions include a central axis of the liquid supply port at the center, and are disposed symmetrically with respect to the X direction with respect to a surface perpendicular to the X direction. The cassette of any one of claims 1 to 9, wherein the three or more odd-numbered liquid supply ports are disposed on a straight line parallel to the X direction. The cassette according to any one of claims 1 to 10, further comprising a recessed portion provided on a position of the bottom surface closer to the first side surface than the second side surface, and the revenue is provided on a device side of the bracket Protrusion.