JP6295761B2 - Liquid supply unit - Google Patents

Description

  The present invention relates to a liquid supply unit for supplying a liquid to a liquid ejecting apparatus.

  As the liquid supply unit, for example, an ink cartridge for supplying ink to a so-called inkjet printer is known. An ink jet printer (hereinafter, also simply referred to as “printer”) is an aspect of a liquid ejecting apparatus, and is a printing apparatus that forms an image by ejecting ink droplets onto a printing surface. The ink cartridge is usually detachably attached to a carriage provided in the printer. In the technique of Patent Document 1, an ink cartridge is mounted on a carriage by a rotating operation of a lever.

JP2013-141804A

  In order to improve the mountability of the ink cartridge with respect to the carriage, it is desirable that the angle and the moving direction of the ink cartridge when mounted on the carriage are easily determined and the trajectory of the ink cartridge is stabilized. It is also desirable that the external force applied to the ink cartridge by the user for mounting can be reduced. In addition, it is desirable that the fixation and stability of the ink cartridge ink after mounting is enhanced.

  In particular, some ink cartridges have a circuit board for exchanging electrical signals with a printer. A printer in which this type of ink cartridge is mounted detects the mounting state of the ink cartridge with respect to the carriage and acquires information about the ink contained in the ink cartridge by exchanging signals via the circuit board. In this type of ink cartridge, it is desirable that the ink cartridge be mounted on the printer so as to ensure electrical connectivity with the printer.

  Conventionally, further improvements have been desired for the mounting properties of ink cartridges, and research has been conducted on a daily basis. In addition, for ink cartridges, it is desired to improve space utilization efficiency by downsizing, to reduce costs, to facilitate manufacturing, to save resources, to improve usability, and the like. These problems are not limited to ink cartridges mounted on printers, but are common to liquid supply units that are mounted and connected to devices that consume liquid, such as liquid ejecting devices that eject liquid, and supply the device with liquid. It was a challenge.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms.

[1] According to an aspect of the present invention, in a liquid ejecting apparatus including a rotation mechanism including a rotation fulcrum, a first pressed portion, and a second pressed portion, and a liquid introduction pipe capable of introducing a liquid. On the other hand, a liquid supply unit that can be mounted when the first pressed portion and the second pressed portion rotate is provided. The liquid supply unit of this form may include a liquid supply port, a first pressing portion, and a second pressing portion. The liquid supply port may be configured to be able to supply a liquid to the liquid introduction pipe of the liquid ejecting apparatus. The first pressing portion may be configured to be able to press the first pressed portion. The second pressing portion may be configured to be able to press the second pressed portion. When the liquid supply unit is attached to the liquid ejecting apparatus, the first pressing portion and the second pressing portion are connected to the liquid supply port and the liquid supply port in a connecting direction toward the liquid introduction pipe. In a state where the distance between the first pressing part and the distance between the liquid supply port and the second pressing part are longer than the distance between the liquid supply port and the fulcrum in the connection direction, It may be possible to press the rotation mechanism so that the first pressed portion and the second pressed portion rotate in a direction away from the liquid supply unit. Since the liquid supply unit of this form is attached to the liquid ejecting apparatus in a state where the rotation mechanism is pressed at two points of the first pressing portion and the second pressing portion, the posture of the liquid supply unit at the time of mounting is stable. Moreover, the force which rotates a rotation mechanism is reduced when the press part and the fulcrum of a rotation mechanism are separated, and mounting | wearing of a liquid supply unit is facilitated. Therefore, the mounting property of the liquid supply unit is improved.

[2] The liquid supply unit of the above aspect includes a contact portion that can contact the rotation mechanism when the liquid supply unit is attached to the liquid ejecting apparatus. The 2 pressing part may be configured such that the pressing against the first pressed part and the second pressed part is released when the contact part is in contact with the rotation mechanism. According to the liquid supply unit of this form, the mounting operation of the liquid supply unit is simplified.

[3] The liquid supply unit of the above aspect includes a plurality of contact portions arranged in at least one predetermined arrangement direction so as to be electrically connectable to the electrode portion of the liquid ejecting apparatus, and the plurality of contact portions include A first contact portion and a second contact portion located at both ends in the arrangement direction, and a distance between the first press portion and the second press portion in the arrangement direction is the first contact portion in the arrangement direction. The distance between the first contact portion and the second contact portion may be larger. According to the liquid supply unit of this form, the electrical connectivity to the liquid ejecting apparatus is improved.

[4] The liquid supply unit of the above aspect includes a first detection terminal and a second detection terminal for the liquid ejecting apparatus to detect attachment of the liquid supply unit, and the first detection terminal is configured to be the first contact. And the second detection terminal may have the second contact portion. According to the liquid supply unit of this aspect, the detection accuracy of the mounting state of the liquid supply unit with respect to the liquid ejecting apparatus can be improved.

[5] The liquid supply unit according to the above aspect includes a storage device and a third contact portion that can be electrically connected to the liquid ejecting apparatus, and includes the first detection terminal and the second detection terminal in the arrangement direction. A data terminal that is provided in between and capable of supplying data to the storage device; and a fourth contact portion that can be electrically connected to the liquid ejecting apparatus; and the first detection terminal and the second detection in the arrangement direction A high potential terminal that is located between the terminal and capable of supplying a high potential to the storage device, and a fifth contact portion that can be electrically connected to the liquid ejecting apparatus, and the first detection terminal in the arrangement direction And the second detection terminal, and a low potential terminal that can supply a low potential to the memory device. According to the liquid supply unit of this aspect, the connectivity of each terminal is improved, so that the communication quality between the storage device of the liquid supply unit and the liquid supply device is improved.

[6] The liquid supply unit of the above aspect includes the first pressing portion, the second pressing portion, the first contact portion, and a wall surface on which the second contact portion is disposed, and the first pressing portion The part may protrude from the wall surface rather than the first contact part. According to the liquid supply unit of this aspect, the first contact portion is protected by the first pressing portion. Therefore, poor electrical connection with the liquid ejecting apparatus due to deterioration of the first contact portion is suppressed.

[7] In the liquid supply unit of the above aspect, the contact portion may be arranged on the wall surface. According to the liquid supply unit of this form, the mounting operation of the liquid supply unit is simplified.

[8] The liquid supply unit of the above aspect may include an intersecting wall surface that intersects the wall surface, and the contact portion may be configured by an extending portion that extends from the intersecting wall surface to the wall surface. According to the liquid supply unit of this form, the mounting property of the liquid supply unit is improved.

[9] The liquid supply unit according to the above aspect includes a first wall portion, a second wall portion facing the first wall portion, and a third wall portion intersecting the first wall portion and the second wall portion. And a fourth wall portion that intersects the first wall portion and the second wall portion and faces the third wall portion, the first wall portion, the second wall portion, and the third wall portion. A fifth wall portion that intersects the fourth wall portion, a first wall portion, the second wall portion, the third wall portion, and the fourth wall portion that intersect each other and face the fifth wall portion. And a sixth wall portion to be provided. The wall surface is a wall surface of the fourth wall portion, and when the liquid supply unit is viewed in a direction from the fourth wall portion toward the third wall portion, the first contact portion extends from the fifth wall portion. The distance from the fifth wall portion to the first pressing portion is shorter than the distance from the sixth wall portion to the second pressing portion than the distance from the sixth wall portion to the second contact portion. The distance may be shortened. According to the liquid supply unit of this aspect, the first contact portion and the second contact portion are disposed in the region between the two pressing portions in the direction from the fifth wall portion toward the sixth wall portion. Therefore, electrical connectivity to the liquid ejecting apparatus is improved.

[10] In the liquid supply unit of the above aspect, when the liquid supply unit is planarly viewed in a direction from the fourth wall portion toward the third wall portion, the liquid supply unit is between the first pressing portion and the second pressing portion. The first contact portion and the second contact portion may be positioned at the same position. According to the liquid supply unit of this aspect, when the liquid supply unit is attached to the liquid ejecting apparatus, the arrangement direction of the first contact portion and the second color setting portion is suppressed from being inclined. Therefore, electrical connectivity to the liquid ejecting apparatus is improved.

[11] In the liquid supply unit of the above aspect, when the first wall portion has the liquid supply port and the liquid supply unit is viewed in a direction from the first wall portion to the second wall portion, The distance from the center of the liquid supply port to the first pressing portion may be longer than the distance from the center of the liquid supply port to the first contact portion. According to the liquid supply unit of this aspect, the connectivity of the liquid supply port to the liquid ejecting apparatus can be improved.

[12] In the liquid supply unit of the above aspect, the center of the liquid supply port is located between the first contact portion and the second contact portion in a direction from the fifth wall portion to the sixth wall portion. You can do it. According to the liquid supply unit of this aspect, the connectivity of the liquid supply port is enhanced together with the connectivity of the first contact portion and the second contact portion.

[13] The liquid supply unit of the above aspect may be configured to be attachable by rotating around a place where the third wall portion and the liquid ejecting apparatus come into contact with each other. With this form of the liquid supply unit, the track when mounted on the liquid ejecting apparatus is stabilized, and the mountability is improved.

  A plurality of constituent elements of each aspect of the present invention described above are not indispensable, and some or all of the effects described in the present specification are to be solved to solve part or all of the above-described problems. In order to achieve the above, it is possible to appropriately change, delete, replace with another new component, and partially delete the limited contents of some of the plurality of components. In order to solve part or all of the above-described problems or to achieve part or all of the effects described in this specification, technical features included in one embodiment of the present invention described above. A part or all of the technical features included in the other aspects of the present invention described above may be combined to form an independent form of the present invention.

  The present invention can be realized in various forms other than the liquid supply unit. For example, it can be realized in the form of a device to which the liquid supply unit is mounted, a system including the device, a mounting mechanism and a mounting structure of the liquid supply unit, a mounting method, and the like.

FIG. 2 is a schematic perspective view illustrating an external configuration of a printing apparatus. FIG. 2 is a schematic perspective view illustrating an external configuration of a main body portion of the printing apparatus. FIG. 4 is a schematic perspective view showing first and second ink cartridges mounted on a holder portion. FIG. 3 is an upper perspective view showing the external configuration of the first ink cartridge. FIG. 3 is a lower perspective view illustrating an external configuration of a first ink cartridge. FIG. 3 is a side view showing an external configuration of a first ink cartridge. FIG. 3 is a front view showing an external configuration of a first ink cartridge. FIG. 3 is a schematic cross-sectional view of a first ink cartridge. Schematic which shows the arrangement structure of the some terminal in a circuit board. The upper perspective view of a 2nd ink cartridge. The bottom perspective view of the 2nd ink cartridge. The side view of the 2nd ink cartridge. The front view of a 2nd ink cartridge. The upper perspective view when the holder part is viewed from above the front side. The upper perspective view when the holder part is viewed from above the back side. The lower perspective view of a holder part. The schematic perspective view which extracts and shows the vicinity of the lever part and the apparatus side terminal part of the state attached to the holder part. The side view of a lever part. FIG. 5 is a schematic diagram showing the mounting process of the first ink cartridge to the holder portion in time series. FIG. 5 is a schematic diagram showing the mounting process of the first ink cartridge to the holder portion in time series. The schematic diagram for demonstrating the function of the 1st side wall part which a main engaging part has, and a 2nd side wall part. FIG. 3 is a schematic diagram illustrating a positional relationship between a main engagement portion and a circuit board in the first ink cartridge. Schematic which shows the positional relationship of a 1st side wall part and a 2nd side wall part, and an ink supply port. FIG. 6 is a schematic side view of a first ink cartridge according to a second embodiment. FIG. 10 is a schematic diagram when the first ink cartridge according to the third embodiment is viewed from the front side. Schematic which shows the structure of the ink cartridge of 4th Embodiment. Schematic which shows the structure of the liquid supply unit of 5th Embodiment.

A. First embodiment:
[Configuration of printing device]
FIG. 1 is a schematic perspective view showing an external configuration of a printing apparatus 10 to which an ink cartridge (hereinafter also simply referred to as “cartridge”) according to a first embodiment of the invention is mounted. FIG. 1 shows arrows X, Y, and Z indicating three directions orthogonal to each other. An arrow X indicates a direction parallel to the horizontal direction (width direction) of the printing apparatus 10 and indicates a direction from the left side to the right side when facing the printing apparatus 10. An arrow Y indicates a direction parallel to the front-rear direction of the printing apparatus 10, and indicates a direction from the rear (back side) toward the front (front side). An arrow Z indicates the height direction of the printing apparatus 10 and indicates a vertically upward direction with respect to the placement surface on which the printing apparatus 10 is placed. In other drawings used in the description of the present specification, the arrows X, Y, and Z are also illustrated so as to correspond to FIG. 1 as appropriate. In this specification, the term “upper” or “lower” means a direction based on the direction of the arrow Z of the printing apparatus 10. Similarly, when referring to “front” or “rear”, it means a direction based on the direction of the arrow Y of the printing apparatus 10, and when referring to “left” or “right”, respectively. It means a direction based on the direction.

  The printing apparatus 10 is an ink jet printer that is an aspect of a liquid ejecting apparatus. The printing apparatus 10 forms an image by ejecting ink droplets onto printing paper in accordance with print data supplied from the outside. The printing apparatus 10 includes a housing 11, a paper feed port 12, a top cover 13, a paper discharge port 14, and an operation unit 16. The housing 11 is an exterior member that houses a main body (described later) having a printing mechanism of the printing apparatus 10. The paper feed port 12 is an opening provided so as to open upward at the rear of the housing 11. Printing paper, which is a printing medium, is supplied to the main body inside the housing 11 through the paper feed port 12.

  The top cover 13 is a plate-like member that is rotatably attached to the housing 11 in the vicinity of the paper feed port 12. When the top cover 13 is in the open state (the state shown in the figure), it functions as a guide plate for feeding printing paper into the paper feed slot 12, and when it is in the closed state, it covers and protects the center of the top surface of the housing 11. Functions as a lid. The paper discharge port 14 is an opening provided on the front surface of the housing 11. The printing paper fed into the housing 11 through the paper supply port 12 is discharged to the outside through the paper discharge port 14. The operation unit 16 includes a button for receiving a user operation and a display unit for displaying information to the user. The operation unit 16 is provided on the upper surface of the housing 11, and the user can access the operation unit 16 when the upper surface cover 13 is open.

  FIG. 2 is a schematic perspective view showing an external configuration of the main body 20 taken out from the housing 11 of the printing apparatus 10. In FIG. 2, the movement trajectory of the carriage 27 is schematically shown by broken lines. The main body unit 20 includes a control unit 21, a transport unit 22, and a printing unit 23. The control unit 21 is configured by a microcomputer including a central processing unit and a main storage device. The control unit 21 controls each component of the printing apparatus 10 in accordance with a user operation via the operation unit 16 or a command from an external computer, and executes a printing process. The transport unit 22 extends the printing paper introduced from the paper feed port 12 (FIG. 1) in the direction of the arrow Y (sub-scanning direction) inside the main body unit 20 by rotational driving of the transport roller 25. It is conveyed to the paper discharge port 14 via a conveyance path (not shown).

  The printing unit 23 is arranged on the printing paper conveyance path, and executes printing on the printing paper conveyed by the conveyance unit 22. The printing unit 23 includes a carriage 27 and a guide rail 28. The carriage 27 includes a print head (not shown) that ejects ink droplets. The carriage 27 is reciprocated along the guide rail 28 installed in the main scanning direction (the direction of the arrow X) and controlled to be conveyed in the sub-scanning direction by the conveying unit 22 under the control of the control unit 21. Ink droplets are ejected toward the surface of the paper. The printing apparatus 10 of this embodiment is a so-called on-carriage type, and two cartridges 100 a and 100 b are detachably mounted on the carriage 27 via a holder part 200.

  FIG. 3 is a schematic perspective view showing the first and second cartridges 100a and 100b in a state where they are mounted on the holder portion 200 in the printing apparatus 10. FIG. The first and second cartridges 100 a and 100 b correspond to a liquid supply unit, and contain ink to be supplied to the printing apparatus 10. The first cartridge 100a contains one type of color ink, and the second cartridge 100b contains a plurality of different color inks. In the present embodiment, the first cartridge 100a contains black color ink, and the second cartridge 100b contains cyan, yellow, and magenta color inks.

  Each of the first and second cartridges 100a and 100b has a substantially rectangular parallelepiped shape. The length of the first cartridge 100a (the length in the direction of arrow Y) and the height (the length in the direction of arrow Z) are substantially the same as those of the second cartridge 100b. The holder part 200 is configured as a substantially rectangular parallelepiped box having an upper opening. The first and second cartridges 100a and 100b are accommodated in parallel in the inner space of the holder portion 200 in a state where the length and the height are substantially aligned. When mounted on the holder portion 200, the side surfaces and bottom surface of the first and second cartridges 100a and 100b are substantially covered, and the entire top surface is exposed upward.

  The first and second cartridges 100 a and 100 b are each fixed to the holder part 200 independently. Hereinafter, details of the configuration of the first and second cartridges 100a and 100b and the holder unit 200 will be described, and a mechanism for mounting and fixing the first and second cartridges 100a and 100b to the holder unit 200 will be described. Note that the directions of arrows X, Y, and Z shown in the drawings showing the first and second cartridges 100a and 100b indicate directions in a state where they are mounted on the printing apparatus 10 described above.

[Configuration of first cartridge]
Details of the configuration of the first cartridge 100a will be described with reference to FIGS. FIG. 4 is a top perspective view of the first cartridge 100a. FIG. 5 is a lower perspective view of the first cartridge 100a. FIG. 6 is a side view of the first cartridge 100a. FIG. 7 is a front view of the first cartridge 100a. FIG. 8 is a schematic cross-sectional view of the first cartridge 100a taken along the line AA shown in FIG. In FIG. 8, the detailed configuration of the ink chamber 108 is not shown.

  As described above, the first cartridge 100a has a substantially rectangular parallelepiped shape, and has six wall portions 101 to 106 surrounding the ink chamber 108 (FIG. 8) for containing ink. The first wall 101 (FIG. 5) constitutes the bottom surface of the first cartridge 100a. The bottom surface is a surface that faces in the direction opposite to the arrow Z when mounted on the printing apparatus 10. An ink supply port 110 that communicates with the ink chamber 108 is provided at the center of the first wall portion 101. The ink supply port 110 is connected to an ink receiving portion (described later) of the holder portion 200 when the first cartridge 100 a is mounted on the holder portion 200. The ink supply port 110 corresponds to a liquid supply port.

  The second wall 102 (FIG. 4) faces the first wall 101 and constitutes the upper surface of the first cartridge 100a. The top surface is a surface that faces in the direction of arrow Z when mounted on the printing apparatus 10. The second wall portion 102 is configured by a lid body 102c (FIG. 8) that is separable from the main body of the first cartridge 100a.

  The second wall portion 102 has an extending portion 113 extending in the direction of arrow Y at the center of the end portion adjacent to the fourth wall portion 104. In this specification, “extension” means continuous extension without any breaks. The extending part 113 constitutes a part of the main engaging part 120. The second wall portion 102 includes a through hole 115 for filling the ink chamber 108 with ink, an air flow channel groove 116 for introducing outside air into the ink chamber 108, and a film-like seal that seals them from above. Member 117 (FIG. 8).

  The third wall 103 (FIG. 6) intersects the first wall 101 and the second wall 102. The third wall 103 constitutes the back surface of the first cartridge 100a, and is arranged to face the back of the printing apparatus 10 (opposite to the arrow Y) when the first cartridge 100a is attached to the holder 200. . At the lower end of the third wall 103, a plurality of protrusions 114 protruding in the direction along the arrow Y are provided. Each of the plurality of protrusions 114 is arranged at both ends in the direction of the arrow X. The plurality of protrusions 114 are inserted into and engaged with fitting holes (described later) of the holder part 200 when the first cartridge 100 a is mounted on the holder part 200.

  The fourth wall portion 104 intersects the first wall portion 101 and the second wall portion 102 and faces the third wall portion 103 (FIGS. 4 to 8). The fourth wall portion 104 constitutes the front surface of the first cartridge 100a. When the first cartridge 100a is mounted on the holder portion 200, the fourth wall portion 104 faces the front of the printing apparatus 10 (in the direction of arrow Y) and faces the user. . The fourth wall portion 104 is provided with a main engagement portion 120 that engages with a lever portion (described later) of the holder portion 200. In this specification, “engage” means engaging with a predetermined portion so that the moving direction is limited. The main engagement portion 120 is provided substantially at the center in the direction of the arrow X at a position close to the upper end portion of the fourth wall portion 104.

  The main engagement portion 120 is formed as a tongue-like flange that extends forward while slightly descending from the second wall portion 102. A front end portion of the main engagement portion 120 is provided with a notch portion 122 which is a local recess at the center, and is separated into two parts by being separated by a recess space of the notch portion 122. That is, the front end portion of the main engagement portion 120 includes, in order in the direction of the arrow X, a first flange portion 121 that is a first portion, a notch portion 122, and a second flange portion 123 that is a second portion. It has an arranged configuration. Each of the first flange 121 and the second flange 123 corresponds to a contact portion, and when engaged with the lever portion of the holder portion 200, the upper surface thereof is in surface contact with the lever portion of the holder portion 200. .

  A first sidewall portion 125 and a second sidewall portion 126 are provided on the lower surfaces of the first flange portion 121 and the second flange portion 123, respectively. The first side wall portion 125 and the second side wall portion 126 are plate-like portions arranged in the direction of the arrow X. The first side wall portion 125 and the second side wall portion 126 hang downward from the first flange portion 121 and the second flange portion 123, respectively, at positions separated from the wall surface of the fourth wall portion 104 in the direction of arrow Y. Provided so as to protrude from the wall surface of the fourth wall portion 104. The front end surfaces 127 of the first side wall 125 and the second side wall 126 are each configured as a plane that is inclined with respect to the wall surface of the fourth wall 104.

  The first side wall part 125 and the second side wall part 126 are respectively a first pressing part and a second pressing part for pressing a lever part which is a rotation mechanism of the holder part 200 when the first cartridge 100a is mounted on the holder part 200. It functions as a pressing part (details will be described later). Moreover, the 1st side wall part 125 and the 2nd side wall part 126 function also as a protection part of the circuit board 130 so that it may demonstrate below.

  A circuit board 130 for exchanging electrical signals with the printing apparatus 10 is disposed below the main engagement portion 120 in the fourth wall portion 104 (FIG. 5). The circuit board 130 is fixed to the fourth wall portion 104 with an inclination angle of 10 ° to 45 °, for example, with respect to the arrow Z direction so that the surface thereof is slightly directed downward.

  The circuit board 130 includes a terminal portion 131 and a storage device 132 (FIG. 8). The terminal portion 131 is provided on the surface of the circuit board 130 and has a plurality of terminals arranged in a predetermined arrangement direction. When the first cartridge 100a is mounted on the holder unit 200, each terminal of the terminal unit 131 comes into contact with a corresponding one of the plurality of terminals provided on the holder unit 200 (described later). Conducts electrically. Details of the arrangement of a plurality of terminals included in the terminal portion 131 of the circuit board 130 will be described later. The storage device 132 is configured by a rewritable nonvolatile memory such as a flash ROM, for example. The storage device 132 stores information related to ink, such as the color and remaining amount of ink stored in the first cartridge 100a, in a nonvolatile manner.

  In the printing apparatus 10, several terminals of the terminal portion 131 of the circuit board 130 come into contact with one corresponding terminal (described later) among a plurality of terminals provided in the holder portion 200 to be electrically connected. Thus, it is detected that the first cartridge 100a is mounted. Further, the printing apparatus 10 acquires information about ink from the storage device 132 of the circuit board 130.

  In the present embodiment, the circuit board 130 is disposed at a position sandwiched between the first sidewall portion 125 and the second sidewall portion 126 of the main engagement portion 120 (FIGS. 5 and 7). The first side wall part 125 and the second side wall part 126 protrude forward on both sides of the surface of the circuit board 130. As described above, the first side wall portion 125 and the second side wall portion 126 project from both sides of the circuit board 130, thereby preventing the user from touching the terminal of the circuit board 130 by mistake. The terminal is protected.

  The fifth wall portion 105 and the sixth wall portion 106 intersect the first wall portion 101, the second wall portion 102, the third wall portion 103, and the fourth wall portion 104 and face each other. (FIGS. 4 to 7). The fifth wall portion 105 and the sixth wall portion 106 constitute the side surface of the first cartridge 100a. Ribs 141, 142, and 143 extending in the direction of arrow Z are provided on the surfaces of the fifth wall portion 105 and the sixth wall portion 106. The first rib 141 is provided at the rear end, the second rib 142 is provided at a middle position in the front-rear direction, and the third rib 143 is provided at the front end.

  Each rib 141, 142, 143 functions as a reinforcing portion of the side wall surface of the first cartridge 100a. Further, when the first cartridge 100a is mounted on the holder portion 200, it also functions as a guide portion that defines the moving direction of the first cartridge 100a, and also as a positioning portion that fixes the position of the first cartridge 100a. Functions (details will be described later).

  FIG. 9 is a schematic diagram illustrating an arrangement configuration of a plurality of terminals 151 to 159 on the circuit board 130. In FIG. 9, the contact portions CP of the respective terminals 151 to 159 are illustrated by broken lines. Each of the plurality of terminals 151 to 159 has a contact portion CP. Each contact portion CP in each of the terminals 151 to 159 is a portion that is in electrical contact with a corresponding one terminal (described later) provided in the holder portion 200. The contact portions CP of the plurality of terminals 151 to 159 are divided into two rows of an upper stage and a lower stage on the circuit board 130 and are arranged in parallel with the direction of the arrow X (hereinafter, this arrangement direction is also referred to as “terminal arrangement direction”). Is arranged. The contact portions CP of the first and second terminals 151 and 152 are arranged at both ends of the upper row, respectively. The contact portions CP of the third and fourth terminals 153 and 154 are sequentially arranged in the arrow X direction between the contact portions CP of the first and second terminals 151 and 152. The contact portions CP of the fifth and sixth terminals 155 and 156 are respectively disposed at both ends of the lower row. The contact portions CP of the seventh, eighth, and ninth terminals 157, 158, and 159 are sequentially arranged in the direction of the arrow X between the contact portions CP of the fifth and sixth terminals 155 and 156. Yes.

  The first and second terminals 151 and 152 correspond to a first detection terminal having a first contact portion and a second detection terminal having a second contact portion, respectively, and the printing apparatus 10 has a holder portion 200 of the first cartridge 100a. Used to detect attachment to The first and second terminals 151 and 152 are configured to cause a predetermined voltage change when the first cartridge 100a is correctly attached to the holder part 200 and contacts the corresponding terminal of the holder part 200. . Specifically, the first and second terminals 151 and 152 are short-circuited with each other, and based on the voltage applied to the first terminal 151 when the first cartridge 100a is mounted on the holder unit 200. The voltage of the second terminal 152 is configured to change.

  In the circuit board 130 of the present embodiment, the contact portions CP of the first and second terminals 151 and 152 are arranged at both ends in the arrangement direction where the number of contact portions CP of adjacent terminals is small. Generation | occurrence | production of the short circuit with the contact part CP is suppressed. Further, since the contact portions CP of the first and second terminals 151 and 152 are spaced apart in the direction of the arrow X, the first cartridge 100a is mounted while being inclined in the direction of the arrow X. It is suppressed that the state is detected as a correct wearing state. Thus, according to the circuit board 130 of the present embodiment, the detection accuracy of the mounting state of the first cartridge 100a with respect to the holder part 200 is improved. In the first and second terminals 151 and 152, portions where the terminal 251 of the device-side terminal portion 250 contacts correspond to a first contact portion and a second contact portion, respectively.

  The third terminal 153 is a ground terminal that is grounded when the contact portion CP contacts a corresponding terminal on the holder portion 200 side, and corresponds to a low potential terminal that can supply a low potential to the storage device 132. The fourth terminal 154 is a power supply terminal to which a high potential is applied when the contact portion CP comes into contact with a corresponding terminal on the holder portion 200 side, and is a high potential terminal that can supply a high potential to the storage device 132. Equivalent to.

  Similar to the first and second terminals 151 and 152, the fifth and sixth terminals 155 and 156 are used by the printing apparatus 10 to detect the mounting of the first cartridge 100a on the holder portion 200. The seventh terminal 157 is a reset terminal for supplying a reset signal from the printing apparatus 10 to the storage device 132. The eighth terminal 158 is a clock terminal for supplying a clock signal from the printing apparatus 10 to the storage device 132. The ninth terminal 159 is a data terminal for exchanging data signals between the storage device 132 and the printing device 10. In the present embodiment, the printing apparatus 10 transmits and receives data to and from the storage device 132 by serial transfer via the ninth terminal 159 based on the clock signal supplied via the eighth terminal 158.

[Configuration of second cartridge]
Details of the configuration of the second cartridge 100b will be described with reference to FIGS. FIG. 10 is an upper perspective view of the second cartridge 100b. In FIG. 10, for convenience, the ink chambers 108a to 108c formed inside the second cartridge 100b are shown by broken lines. FIG. 11 is a lower perspective view of the second cartridge 100b. FIG. 12 is a side view of the second cartridge 100b. FIG. 13 is a front view of the second cartridge 100b. 10 to 13, the same reference numerals are given to the components common to the components of the first cartridge 100 a described in FIGS. 4 to 8.

  As described above, the second cartridge 100b has a substantially rectangular parallelepiped appearance, and has six wall portions 101 to 106 corresponding to the respective wall portions 101 to 106 of the first cartridge 100a. The inside of the second cartridge 100b is partitioned into three ink chambers 108a to 108c for storing three colors of ink for each color.

  The first ink chamber 108 a is formed in a front area facing the fourth wall portion 104. The second and third ink chambers 108b and 108c are each formed by dividing a region on the rear side of the first ink chamber 108a into two in the direction of the arrow X. The second ink chamber 108 b is formed on the side facing the fifth wall portion 105, and the third ink chamber 108 c is formed on the side facing the sixth wall portion 106.

  The first wall 101 (FIG. 11) is provided with three ink supply ports 110a to 110c corresponding to the ink chambers 108a to 108c. The first ink supply port 110 a is formed at a position where the center thereof substantially coincides with the center in the arrow X direction of the main engagement portion 120 provided in the fourth wall portion 104. The second and third ink supply ports 110b and 110c are provided at the centers of the second and third ink chambers 108b and 108c, respectively.

  A groove 118 extending linearly in the direction of the arrow Y is formed at a position corresponding to the boundary position between the second and third ink chambers 108b and 108c between the second and third ink supply ports 110b and 110c. ing. The groove portion 118 functions as an engaged portion that engages with a second sub-wall portion (described later) of the holder portion 200 when the second cartridge 100 b is mounted on the holder portion 200.

  The second wall portion 102 (FIG. 10) has substantially the same configuration as the second wall portion 102 of the first cartridge 100a except that the width in the direction of the arrow X is different from the formation position of the extending portion 113. doing. The extending portion 113 is formed at a position near the direction opposite to the direction of the arrow X from the center of the end adjacent to the fourth wall portion 104. The third wall 103 (FIGS. 11 and 12) has substantially the same configuration as the third wall 103 of the first cartridge 100a except that the width in the direction of the arrow X is different.

  The fourth wall portion 104 (FIGS. 10 and 11) has substantially the same configuration as the second wall portion 102 of the first cartridge 100a except that the formation position of the main engagement portion 120 is different. The main engagement portion 120 is formed at a position near the direction opposite to the direction of the arrow X from the center of the end adjacent to the second wall portion 102. As a result, when the first and second cartridges 100a and 100b are mounted on the holder part 200, the respective main engagement parts 120 are arranged adjacent to each other (FIG. 3). The fifth wall portion 105 (FIGS. 10 and 11) and the sixth wall portion 106 (FIG. 12) have substantially the same configuration as the fifth wall portion 105 and the sixth wall portion 106 of the first cartridge 100a, respectively. Yes.

[Configuration of holder part]
A schematic configuration of the holder unit 200 will be described with reference to FIGS. 14 to 16. FIG. 14 is an upper perspective view of the holder unit 200 as viewed from above the front side. FIG. 15 is an upper perspective view of the holder part 200 when viewed from the back side. FIG. 16 is a lower perspective view of the holder part 200. As described above, the holder part 200 is configured as a substantially rectangular parallelepiped box having an upper opening. The holder part 200 has five wall parts 201-205 surrounding the cartridge accommodation chamber 210 in which the first and second cartridges 100a, 100b are accommodated.

  The bottom wall portion 201 constitutes the bottom surface of the cartridge housing chamber 210 and functions as a placement portion on which the cartridges 100a and 100b are placed. The front wall portion 202 and the back wall portion 203 extend substantially vertically upward from the front-side end portion and the back-side end portion of the bottom wall portion 201, respectively, and constitute the front and back surfaces of the cartridge storage chamber 210. . The first side wall 204 and the second side wall 205 extend substantially vertically upward from the left end and the right end of the bottom wall 201, respectively, and constitute the left side and right side of the cartridge storage chamber 210. ing.

  The bottom wall 201 (FIGS. 14 and 15) is provided with ink receiving portions 211 to 214 connected to the ink supply ports 110 and 100a to 100c of the cartridges 100a and 100b. Each of the ink receiving portions 211 to 214 corresponds to a liquid introduction tube. On the outer periphery of each of the ink receiving portions 211 to 214, a seal portion 215 is provided for preventing the outside air from entering the ink path and suppressing the leakage of the ink to the outside.

  The bottom wall 201 is provided with a biasing mechanism 217 for biasing the first and second cartridges 100a and 100b upward. In the present embodiment, the urging mechanism 217 is configured by a string spring. The biasing mechanism 217 is disposed at a position adjacent to the lever portion 230. As a result, the engagement force between the main engagement portion 120 and the lever portion 230, which engage with each other when the first and second cartridges 100a and 100b are mounted, is increased, and the first and first cartridges with respect to the holder portion 200 are increased. The mountability of the second cartridge 100a, 100b is improved. Further, since the first and second cartridges 100a and 100b are biased upward when the first and second cartridges 100a and 100b are removed from the holder portion 200, the operability of the removal operation is improved. .

  The bottom wall 201 is provided with a first sub-wall 221 and a second sub-wall 224 that are parallel to the first side wall 204 and the second side wall 205 and have a low height. The first sub-wall portion 221 is provided at a position adjacent to the first side wall portion 204 and the second side wall portion 205 and a position corresponding to a boundary position between the first and second cartridges 100a and 100b. ing. The second sub-wall portion 224 is provided at a position corresponding to the boundary position between the second and third ink chambers 108b and 108c in the region where the second cartridge 100b is mounted.

  The first sub-wall portion 221 is formed with an inclined portion 225 whose height gradually decreases toward the rear at an end on the rear side. Further, the first sub-wall portion 221 is formed with a notch 226 in the middle of the cartridge housing chamber 210 in the direction of arrow Y. The inclined part 225 and the notch part 226 function as a guide part for guiding the movement of the first and second cartridges 100a and 100b when the first and second cartridges 100a and 100b are mounted on the holder part 200, respectively. (Details will be described later).

  In the second sub-wall portion 224, an inclined portion 225 similar to the first sub-wall portion 221 is formed at the end on the rear side. When the second cartridge 100b is mounted on the holder portion 200, the inclined portion 225 also functions as a guide portion that guides the movement of the second cartridge 100b. Further, the second sub-wall portion 224 has a function of engaging the groove portion 118 (FIG. 11) provided in the first wall portion 101 of the second cartridge 100b and fixing the second cartridge 100b.

  The front wall 202 (FIG. 15) is provided with a lever 230 that is a rotation mechanism that rotates around a fulcrum. Since the lever portion 230 is provided on the front wall portion 202, the user can easily access the lever portion 230 when the first and second cartridges 100a and 100b are attached and detached. Below the lever portion 230, a device-side terminal portion 250 that contacts the terminal portion 131 of the circuit board 130 of the first and second cartridges 100a and 100b is disposed. The device side terminal portion 250 corresponds to an electrode portion. Details of the configuration of the lever unit 230 and the device-side terminal unit 250 will be described later.

  A plurality of fitting holes 227 are arranged in the arrow X direction at the lower end of the wall surface on the cartridge housing chamber 210 side of the back wall 203 (FIG. 14). When the first and second cartridges 100a and 100b are mounted, a plurality of protrusions 114 (FIG. 5) provided in the fitting holes 227 at the lower ends of the third wall portions 103 of the cartridges 100a and 100b. , FIG. 11) is inserted and engaged.

  The configuration of the lever portion 230 of the holder portion 200 and the device-side terminal portion 250 will be described with reference to FIGS. FIG. 17 is an upper perspective view showing the vicinity of the lever portion 230 and the device-side terminal portion 250 in a state of being attached to the front wall portion 202 of the holder portion 200. FIG. 18 is a side view of the lever portion 230. In FIGS. 17 and 18, the rotation axis RX of the lever portion 230 is shown by a one-dot chain line.

  The lever portion 230 functions as an engaged portion with which the main engaging portion 120 of the first and second cartridges 100a and 100b is engaged. The lever portion 230 includes two leg portions 231 extending in the direction of the arrow Z and a bridging portion 232 that is bridging to the upper ends of the two leg portions 231. At the lower end of each leg portion 231, a convex portion 235 that protrudes outward in the direction of the arrow X is provided.

  The lever portion 230 is movable in the front-rear direction with the central axis of each convex portion 235 as the rotation axis RX by fitting each convex portion 235 into a concave portion (not shown) provided in the front wall portion 202. It is attached as such. The lever part 230 is locked so as to be stationary at a predetermined rotation angle in a state in which the lever part 230 is urged rearward by an urging mechanism (not shown) in the holder part 200.

  The bridging portion 232 of the lever portion 230 has a flat plate portion 236 (FIG. 18) whose both ends are connected to the leg portion 231 and extends from the rear toward the front. The flat plate portion 236 is an engaged portion that is engaged with the main engagement portion 120 of the first and second cartridges 100a and 100b. When the first and second cartridges 100a and 100b are attached to the holder part 200, the lower surface of the flat plate part 236 is the flange 121 in the main engagement part 120 (FIGS. 5 and 11) of the cartridges 100a and 100b. , 123 is in surface contact with the upper surface. Further, as will be described later, the end surface 237 on the rear side of the flat plate portion 236 has a first side wall portion 125 and a second side wall portion 126 that the main engagement portion 120 has when the first and second cartridges 100a and 100b are mounted. In contact with each of the.

  The device-side terminal portion 250 (FIG. 17) has a plate shape, and corresponds to the terminals 151 to 159 (FIG. 9) on the terminal portion 131 of the first and second cartridges 100a and 100b on the rear surface. A plurality of terminals 251 are arranged. Each terminal 251 protrudes in the thickness direction of the device-side terminal portion 250. Each terminal 251 is urged in the protruding direction by an urging mechanism (not shown) inside the device-side terminal portion 250. The device side terminal portion 250 is fixed to the front wall portion 202 of the holder portion 200 independently of the lever portion 230 in a state having an inclination angle corresponding to the circuit board 130 of the first and second cartridges 100a and 100b. Has been.

[Cartridge mounting mechanism for the holder]
19 and 20 are schematic diagrams showing the mounting process of the first cartridge 100a with respect to the holder unit 200 in time series. In FIGS. 19 and 20 (a) to (e), the state when the first cartridge 100a is attached to the holder portion 200 is shown step by step. 19 and 20, the first side wall 204 of the holder unit 200 is not shown for convenience. 19 and 20, an arrow CP indicating a position where the holder unit 200 and the first cartridge 100a are in contact with each other is appropriately illustrated. Since the mounting process of the second cartridge 100b to the holder part 200 is substantially the same as that of the first cartridge 100a, its illustration and description are omitted.

  In the first stage (column (a) in FIG. 19), the first cartridge 100a approaches the holder part 200 in an inclined state in which the third wall part 103 side is downward. Then, the upper end portion of the third wall portion 103 and the upper end portion of the rear wall portion 203 of the holder portion 200 are in contact with each other, and the first ribs 141 at the rear end portions of the fifth wall portion 105 and the sixth wall portion 106 are in contact with each other. A lower end contacts the upper end part of the 1st subwall part 221. FIG.

  In the second stage (column (b) in FIG. 19), the first contact point is the contact point between the upper end of the back wall 203 of the holder 200 and the upper end of the third wall 103 of the first cartridge 100a. The cartridge 100a rotates and moves downward (arrow RD). At this time, the lower end of the first rib 141 starts to move while rubbing the upper surface of the inclined portion 225 of the first subwall portion 221, and the lower end of the second rib 142 is the upper end of the notch portion 226 of the first subwall portion 221. To touch. In the present specification, “rubbing” means relative movement in a direction in which friction occurs in contact with another object.

  In the third stage (column (c) in FIG. 20), the main engagement portion 120 of the first cartridge 100a contacts the lever portion 230 of the holder portion 200. More specifically, at the two points where the front end surfaces 127 of the first side wall portion 125 and the second side wall portion 126 of the main engagement portion 120 are separated from the end surface 237 of the flat plate portion 236 in the bridging portion 232 of the lever portion 230. Surface contact. These two points correspond to the first pressed portion and the second pressed portion. At this stage, the plurality of protrusions 114 provided at the lower end of the third wall portion 103 of the first cartridge 100 a are inserted into the corresponding fitting holes 227 of the holder portion 200. Thereafter, the first cartridge 100a rotates around the contact point between the protrusion 114 and the fitting hole 227 as a fulcrum.

  In the fourth stage (column (d) in FIG. 20), the main engagement portion 120 moves downward by continuing the rotational movement of the first cartridge 100a. The bridging portion 232 of the lever portion 230 is moved forward by being pushed by the first side wall portion 125 and the end surface 127 of the second side wall portion 126 of the main engagement portion 120 and away from the main engagement portion 120 (arrow SD). . In this specification, the phrase “move away” refers not only to moving away from an object but also to the opposite of the object while maintaining the distance from the object. Includes moving in the direction. As described above, in the first cartridge 100a of the present embodiment, the lever portion 230 is pushed by the main engagement portion 120 and is rotationally moved. Therefore, the rotational movement operation of the lever portion 230 by the user's fingertip can be omitted. it can.

  In the fourth stage, the terminals 151 to 159 (FIG. 9) in the terminal portion 131 of the circuit board 130 of the first cartridge 100 a correspond to the plurality of terminals 251 of the device-side terminal portion 250 of the holder portion 200. Contact one. As the first cartridge 100 a moves downward, the contact portions CP of the terminals 151 to 159 of the first cartridge 100 a rub against the surface of the corresponding terminal 251 of the holder portion 200. By this rubbing, deposits such as dirt on the surface of the contact portion CP in the terminal are removed, so that the electrical contact between the terminals is enhanced.

  In the fifth stage (column (e) in FIG. 20), the rotational movement of the first cartridge 100 a is completed, and the first wall portion 101 is supported by the bottom wall portion 201 of the holder portion 200. At this time, the lower end of the second rib 142 reaches the lower end of the notch 226 of the first sub-wall 221 and the position thereof is fixed. The plurality of protrusions 114 provided at the lower end of the third wall portion 103 of the first cartridge 100a are inserted into the corresponding fitting holes 227 of the holder portion 200, and the first cartridge 100a is inserted into the holder portion. It functions as an engaging portion that is locked to 200.

  In addition, in the fifth stage, the first side wall portion 125 and the second side wall portion 126 of the main engagement portion 120 are moved from the bridging portion 232 of the lever portion 230 by moving the main engagement portion 120 to the lowest position. The pressed state is released. Therefore, the lever portion 230 is returned to the initial position on the rear side by the biasing mechanism at the lower end portion (arrow RVD), and the bridging portion 232 moves above the flange portions 121 and 123 of the main engagement portion 120. Accordingly, the upper surfaces of the flange portions 121 and 123 are in surface contact with the lower surface of the flat plate portion 236 of the lever portion 230, and the main engagement portion 120 and the lever portion 230 are engaged. Through the above-described steps, the first cartridge 100a is mounted on the holder unit 200.

  FIG. 21 is a schematic diagram for explaining the functions of the first side wall part 125 and the second side wall part 126 which the main engagement part 120 has. FIG. 21 schematically shows a state in which the lever portion 230 described in the column (d) of FIG. 20 is rotationally moved in a side view along the direction of the arrow X. Note that the following description of the first cartridge 100a using FIG. 21 also applies to the second cartridge 100b. The ink supply port 110 in the first cartridge 100a corresponds to the first ink supply port 110a in the second cartridge 100b.

  As described above, when the first cartridge 100a is attached to the holder portion 200, the lever portion 230 that is later engaged with the main engagement portion 120 by the first side wall portion 125 and the second side wall portion 126 of the main engagement portion 120. The bridging portion 232 is pushed and rotates forward. By the rotational movement of the lever portion 230, a movement path (mounting track) of the first cartridge 100a toward the cartridge storage chamber 210 of the holder portion 200 is secured. Thus, the 1st side wall part 125 and the 2nd side wall part 126 of the main engaging part 120 have a function which enables omission of the rotation operation of the lever part 230 by a user's fingertip. In addition, the first side wall portion 125 and the second side wall portion 126 of the main engagement portion 120 have the following functions.

  The rotational movement of the lever part 230 is performed by pressing two points where the first side wall part 125 and the second side wall part 126 of the main engagement part 120 are separated in the direction of arrow X on the bridging part 232. Is called. At this time, the arrangement angle of the first cartridge 100a when viewed along the direction of the arrow Z is defined by the two contact points. If the lever portion 230 is mounted by contact with only one point on the bridging portion 232, the arrangement angle when viewed along the direction of the arrow Z of the first cartridge 100a is not defined. That is, in the first cartridge 100a of the present embodiment, the first side wall portion 125 and the second side wall portion 126 of the main engagement portion 120 have a function of defining the mounting track of the first cartridge 100a.

  Here, when the lever unit 230 rotates as described above, the direction in which the ink supply port 110 of the first cartridge 100a faces the ink receiving unit 211 of the holder unit 200 is referred to as a “supply port connection direction”. The supply port connection direction may be interpreted as a direction connecting the center of the ink supply port 110 and the center of the ink receiving unit 211. In the present embodiment, the supply port connection direction may be approximately interpreted as a direction from the second wall portion 102 of the first cartridge 100a toward the first wall portion 101, or may be approximately as a reverse direction of the arrow Z. May be interpreted.

  When the lever portion 230 rotates by the first side wall portion 125 and the second side wall portion 126 of the main engagement portion 120, the ink supply port 110, the first side wall portion 125, and the second side wall portion 126 are bridged in the supply port connection direction. The distance Dp between the contact point with the portion 232 is longer than the distance Dr between the ink supply port 110 in the supply port connection direction and the rotation axis RX that is a fulcrum for the rotational movement of the lever portion 230. That is, when the lever portion 230 is rotated by the pressing of the main engagement portion 120, the contact points of the side wall portions 125 and 126 with respect to the first wall portion 101 having the ink supply port 110 in the supply port connection direction. The lever portion 230 is located farther from the rotation axis RX.

  As described above, the first cartridge 100 a is configured to be able to press the bridging portion 232 of the lever portion 230 at a position sufficiently away from the rotation axis RX of the lever portion 230. Therefore, the force applied to the first cartridge 100a by the user for the rotational movement of the lever portion 230 is reduced (the principle of leverage). Therefore, the mounting operation of the first cartridge 100a with respect to the holder part 200 is facilitated, and the mounting property is improved. In particular, in the present embodiment, the first cartridge 100a is rotationally moved with the upper end portion of the third wall portion 103 as a fulcrum, and the main engagement portion 120 of the fourth wall portion 104 is brought into contact with the lever portion 230 to thereby move the lever portion. 230 is rotated. Therefore, the lever principle works repeatedly, and the force applied by the user when the first cartridge 100a is attached to the holder portion 200 is further reduced.

  FIG. 22 is a schematic diagram showing the positional relationship between the main engagement portion 120 and the circuit board 130 in the first cartridge 100a. FIG. 22 schematically illustrates the positional relationship between the main engagement portion 120 and the circuit board 130 when the first cartridge 100a is viewed directly facing the fourth wall portion 104. The following description about the first cartridge 100a using FIG. 22 also applies to the second cartridge 100b.

  In the first cartridge 100a, the distance WE between the first sidewall portion 125 and the second sidewall portion 126 in the terminal arrangement direction (the direction of the arrow X) on the circuit board 130 is equal to the contact portion CP of the first terminal 151. It is larger than the distance WT which is the distance between the contact portion CP of the second terminal 152 (WE> WT). The distance WE is the distance between the center lines of the first side wall 125 and the second side wall 126 in the terminal arrangement direction, and the distance WT is the center of the contact part CP of the first and second terminals 151 and 152 in the terminal arrangement direction. The distance between the lines. If the distances WE and WT have the above relationship, even if the first cartridge 100a is inclined from a predetermined arrangement angle in the mounting process with respect to the holder portion 200, the contact between the first and second terminals 151 and 152 is achieved. The amount of displacement of the portion CP from the specified position is reduced more than the amount of displacement of the side wall portions 125 and 126. Therefore, the occurrence of contact failure between the first and second terminals 151 and 152 is suppressed. Accordingly, the electrical connectivity of the other terminals 153 to 159 is also ensured.

  In the first cartridge 100a of the present embodiment, the distance from the fifth wall portion 105 to the first side wall portion 125 is shorter than the distance from the fifth wall portion 105 to the contact portion CP of the first terminal 151. Further, the distance from the sixth wall 106 to the second side wall 126 is shorter than the distance from the sixth wall 106 to the contact portion CP of the second terminal 152. That is, in the direction of the arrow X, the contact portion CP of the first and second terminals 151 and 152 is arranged in a region closer to the center than the first side wall portion 125 and the second side wall portion 126. In particular, in the first cartridge 100a of the present embodiment, the center position between the first sidewall portion 125 and the second sidewall portion 126 in the direction of the arrow X is the contact portion CP of the first and second terminals 151 and 152. Coincides with the center position between. Accordingly, the occurrence of displacement of the first and second terminals 151 and 152 from the specified position of the contact portion CP is further reduced.

  In addition, in the present embodiment, the contact portion CP of the first and second terminals 151 and 152 is disposed at a position sandwiched between the first sidewall portion 125 and the second sidewall portion 126. The first side wall part 125 and the second side wall part 126 protrude from the contact part CP of the first and second terminals 151 and 152 in the direction of the arrow Y. Therefore, when the user's fingertip comes into contact with the contact portion CP between the first and second terminals 151 and 152, or when the first cartridge 100a falls, the first and second terminals 151 and 151 It is suppressed that the contact part CP of 152 collides with a fall surface directly. In particular, in the first cartridge 100a of the present embodiment, the first flange portion 121 and the second flange extending above the circuit board 130 to the front side from the contact portions CP of the terminals 151 to 159 of the circuit board 130. A portion 123 is provided. In other words, in the present embodiment, the circuit board 130 is enhanced in protection by the wall portions arranged in three directions.

  FIG. 23 is a schematic view showing the positional relationship between the first side wall part 125 and the second side wall part 126 and the ink supply port 110. In FIG. 23 (a), the fourth wall 104 when viewed in plan in the direction opposite to the arrow Y is schematically shown, and in FIG. 23 (b), when viewed in plan in the direction of arrow Z. The first wall 101 is schematically shown so as to correspond to the upper fourth wall 104. The following description with reference to the ink supply port 110 of the first cartridge 100a using FIG. 23 also applies to the first ink supply port 110a of the second cartridge 100b.

  In the first cartridge 100a, the distance Da from the center OC of the ink supply port 110 to the contact portion CP of the first terminal 151 when viewed in plan in the direction of the arrow Z is mainly related to the center OC of the ink supply port 110. It is shorter than the distance Db to the 1st side wall part 125 of the joining part 120. FIG. Further, a distance Dc from the center OC of the ink supply port 110 to the contact portion CP of the second terminal 152 is shorter than a distance Dd from the center OC of the ink supply port 110 to the second side wall portion 126 of the main engagement portion 120. .

  Thus, in the first cartridge 100 a, the contact portion CP of the first terminal 151 is located between the first side wall portion 125 and the ink supply port 110 in the direction of the arrow X. Further, the contact portion CP of the second terminal 152 is positioned between the ink supply port 110 and the second side wall portion 126 in the direction of the arrow X. Thus, when the first cartridge 100 a is mounted on the holder unit 200, the position of the contact portion CP of the first terminal 151 is defined by the positions of the first side wall portion 125 and the ink supply port 110. Further, the position of the contact portion CP of the second terminal 152 is defined by the positions of the second side wall portion 126 and the ink supply port 110. Accordingly, the displacement of the contact portion CP between the first and second terminals 151 and 152 when the ink supply port 110 is correctly connected to the ink receiving portion 211 is suppressed, and the electrical connectivity is improved. Also, the detection accuracy of the mounting state of the first ink cartridge 100a is improved.

  In addition, in the first cartridge 100 a of the present embodiment, the first side wall portion 125 and the second side wall portion 126 are provided on the flanges 121 and 123 of the main engagement portion 120. The above two distances Db and Dd correspond to the distance from the center OC of the ink supply port 110 to the engaging portion in the main engaging portion 120. In the first cartridge 100a of the present embodiment, the force acting on the first cartridge 100a due to the engagement between the main engagement portion 120 and the lever portion 230 causes the distances Db and Dd at the ink supply port 110 based on the lever principle. It is increased to the force according to. Therefore, the connectivity of the ink supply port 110 is improved.

  In particular, as described above, the first cartridge 100a of the present embodiment is moved to the holder portion 200 by the rotational movement with the contact point between the upper end portion of the third wall portion 103 and the back wall portion 203 of the holder portion 200 as a fulcrum. It is mounted (FIGS. 19 and 20). In this mounting process, the external force applied to the first cartridge 100a when the fourth wall portion 104 is moved downward is a force in a direction in which the ink supply port 110 is pressed against the ink receiving portion 211 according to the lever principle. Will be increased. Therefore, the connectivity of the ink supply port 110 is further improved.

  As described above, according to the first and second cartridges 100a and 100b of the present embodiment, the first side wall portion 125 and the second side wall portion 126 are provided, so that the holder unit 200 of the printing apparatus 10 can be provided. Wearability is improved. Further, the operability when the first and second cartridges 100a and 100b are attached to and detached from the holder portion 200 is improved.

B. Second embodiment:
FIG. 24 is a schematic side view of the first cartridge 100aA according to the second embodiment of the present invention when viewed along the direction of the arrow X. FIG. The cartridge 100aA of the second embodiment is substantially the same as the first cartridge 100a of the first embodiment, except that the shapes of the first side wall 125A and the second side wall 126A of the main engagement portion 120 are different. It is. The first cartridge 100aA of the second embodiment can be attached to and detached from the holder 200 (FIGS. 14 to 16) of the printing apparatus 10 (FIGS. 1 and 2) described in the first embodiment together with the second cartridge 100bA. It is attached to. The configuration of the second cartridge 100bA in the second embodiment is the same as that of the second cartridge 100b of the first embodiment, except that it has a first side wall portion 125A and a second side wall portion 126A similar to the first cartridge 100aA. It is the same. The illustration and detailed description of the second cartridge 100bA in the second embodiment are omitted.

  The first side wall part 125A and the second side wall part 126A of the second embodiment are configured such that the end face 127A is not a flat surface but a curved surface. Even in this configuration, when the first and second cartridges 100aA and 100bA are attached to the holder portion 200, the arrangement angles of the first and second cartridges 100aA and 100bA by the first side wall portion 125A and the second side wall portion 126A. Is defined. Moreover, the lever part 230 of the holder part 200 can be easily rotated by the first side wall part 125A and the second side wall part 126A. In addition, the first and second cartridges 100aA and 100bA of the second embodiment can achieve the same operational effects as the first and second cartridges 100a and 100b of the first embodiment.

C. Third embodiment:
FIG. 25 is a schematic view of the first cartridge 100aB according to the third embodiment of the present invention when viewed from the front side along the direction of the arrow Y. FIG. 25 is substantially the same as FIG. 22 except that the first side wall 125B and the second side wall 126B separated from the main engagement portion 120A are illustrated. The configuration of the first cartridge 100aB of the third embodiment is substantially the same as that of the first cartridge 100a of the first embodiment except for the points described below. The first cartridge 100aB of the third embodiment is attached to and detached from the holder unit 200 (FIGS. 14 to 100c and FIG. 16) of the printing apparatus 10 (FIGS. 1 and 2) described in the first embodiment together with the second cartridge 100bB. Installed as possible. The configuration of the second cartridge 100bB in the third embodiment is the same as that of the first embodiment except that the main engagement portion 120B, the first side wall portion 125B, and the second side wall portion 126B are the same as the first cartridge 100aB. The same as the second cartridge 100b. The illustration and detailed description of the second cartridge 100bB in the third embodiment are omitted.

  A first side wall 125B and a second side wall 126B are provided on both sides of the circuit board 130 on the fourth wall 104B of the first cartridge 100aB in the third embodiment. The first side wall portion 125B and the second side wall portion 126B are not connected to the flange portions 121 and 123 of the main engagement portion 120B, and are configured as wall portions protruding from the wall surface of the fourth wall portion 104. Except for this point, the first side wall portion 125 and the second side wall portion 126 of the first embodiment have the same configuration. In the main engagement portion 120B of the first cartridge 100aB of the third embodiment, the first flange portion 121 and the second flange portion 123 are formed in a substantially flat plate shape, and the first side wall portion 125B and the second side wall portion 126B. It is arrange | positioned in the position away from.

  Even in the configuration of the third embodiment, when the first and second cartridges 100aB and 100bB are attached to the holder portion 200, the first and second cartridges 100aB and 100b are separated by the first side wall portion 125B and the second side wall portion 126B. An arrangement angle of 100 bB is defined. Moreover, the lever part 230 of the holder part 200 can be easily rotated and moved by the first side wall part 125B and the second side wall part 126B. In addition, the circuit board 130 is protected by the first sidewall portion 125B and the second sidewall portion 126B. In addition, the first and second cartridges 100aB and 100bB of the third embodiment can achieve the same operational effects as the first and second cartridges 100a and 100b of the first embodiment.

D. Fourth embodiment:
FIG. 26 is a schematic view showing the configuration of a cartridge 100C as the fourth embodiment of the present invention. In FIG. 26, the same reference numerals are given to components common to the components described in the first embodiment. The cartridge 100C of the fourth embodiment is detachably mounted on the carriage 27 (FIG. 2) of the printing apparatus 10 via the holder part 200 (FIGS. 14 to 16) described in the first embodiment. The cartridge 100 </ b> C of the fourth embodiment includes an ink storage unit 300 and an adapter unit 310. The ink storage unit 300 is a liquid container having an ink chamber for storing ink therein. An ink discharge port 301 connected to the ink supply port 110 of the adapter unit 310 is provided on the lower surface of the ink storage unit 300.

  The adapter unit 310 is an exterior container configured to be able to store the ink storage unit 300 from the upper opening 312. The adapter part 310 has wall parts other than the 2nd wall part 102 in the 1st cartridge 100a of 1st Embodiment. The adapter part 310 is the same as each of the first wall part 101, the third wall part 103, the fourth wall part 104, the fifth wall part 105, and the sixth wall part 106 in the first cartridge 100a of the first embodiment. It has the wall part which has a structure. An ink supply port 110 similar to that of the first cartridge 100a of the first embodiment is provided in the first wall portion 101 on the bottom surface of the adapter unit 310. A main engagement portion 120 and a circuit board 130 similar to those described in the first embodiment are arranged on the fourth wall portion 104 that is the front wall portion.

  The cartridge 100 </ b> C of the fourth embodiment can supply ink to the printing apparatus 10 by mounting the ink storage unit 300 on the holder unit 200 via the adapter unit 310. Even in the cartridge 100 </ b> C according to the fourth embodiment, the first side wall part 125 and the second side wall part 126 that press the lever part 230 of the holder part 200 are provided in the adapter part 310, so that the mounting property to the printing apparatus 10 is possible. Has been increased. Thus, even with the cartridge 100C of the fourth embodiment, the same operational effects as those of the first and second cartridges 100a and 100b of the first embodiment can be obtained.

E. Fifth embodiment:
FIG. 27 is a schematic view showing a configuration of a liquid supply unit 330 as a fifth embodiment of the present invention. In FIG. 27, the same reference numerals are given to components common to those described in the first embodiment. The liquid supply unit 330 of the fifth embodiment is detachably attached to the printing apparatus 10 (FIGS. 1 and 2) described in the first embodiment, and supplies ink to the carriage 27 of the printing apparatus 10. The liquid supply unit 330 according to the fourth embodiment includes an adapter unit 310, an ink supply pipe 331, and an ink storage unit 332.

  The adapter unit 310 is the same as the adapter unit 310 described in the fourth embodiment. The main engagement unit 120 and the circuit board 130 are provided on the front fourth wall unit 104, and the first wall unit 101 on the bottom surface is provided. An ink supply port 110 is provided. The ink storage portion 332 is a liquid container having an ink chamber for storing ink therein. The ink chamber of the ink storage unit 332 is connected to the ink supply port 110 of the adapter unit 310 via the ink supply pipe 331. Even in the liquid supply unit 330 according to the fourth embodiment, the first side wall portion 125 and the second side wall portion 126 included in the main engagement portion 120 enhance the mountability of the adapter unit 310 to the printing apparatus 10. As described above, even the liquid supply unit 330 according to the fifth embodiment can achieve the same functions and effects as those of the first and second cartridges 100a and 100b according to the first embodiment.

F. Variations:
F1. Modification 1:
In the first embodiment, the first side wall part 125 and the second side wall part 126 are provided on both sides of the circuit board 130 in the fourth wall part 104. On the other hand, the first side wall part 125 and the second side wall part 126 may be provided on a wall part other than the fourth wall part 104, or may be provided at a position other than both sides of the circuit board 130. . For example, the first side wall portion 125 and the second side wall portion 126 may be separately provided on each of the fifth wall portion 105 and the sixth wall portion 106 in the first and second cartridges 100a and 100b. . In the first and second cartridges 100a and 100b, the first side wall portion 125 and the second side wall portion 126 are provided at the same positions as in the first embodiment, and the circuit board 130 is provided with the first wall portion 101 and the third wall portion. The unit 103 may be provided. In this case, the positions of the first and second terminal portions 151 and 152 of the circuit board 130 may be determined regardless of the position of the center OC of the ink supply port 110.

F2. Modification 2:
In the first and second cartridges 100a and 100b of the first embodiment, the first side wall part 125 and the second side wall part 126 press the lever part 230 of the holder part 200. It is provided as a part. On the other hand, the first and second cartridges 100 a and 100 b have a first pressing portion and a second pressing portion that press the lever portion 230 of the holder portion 200 by a configuration other than the first side wall portion 125 and the second side wall portion 126. A pressing part may be provided. The first pressing portion and the second pressing portion may be configured by, for example, a rod-shaped member that protrudes from the fourth wall portion in the direction of arrow Y. The 1st press part and the 2nd press part may not be comprised so that it may protrude from a wall surface, and may be comprised as a recessed part of a wall surface. In this case, the rotation mechanism of the holder part 200 should just have the protrusion part which can contact a 1st press part and a 2nd press part. Further, the first pressing portion and the second pressing portion may not be arranged in the lateral direction (the direction of the arrow X), for example, may be arranged with an inclination angle with respect to the direction of the arrow X. good. The first pressing portion and the second pressing portion may be provided on a wall portion different from the main engagement portion 120 of the holder portion 200.

F3. Modification 3:
In the first embodiment, the first and second cartridges 100a and 100b are configured as ink containers having a substantially rectangular parallelepiped shape, and have six wall portions 101 to 106. On the other hand, the first and second cartridges 100a and 100b may not have a substantially rectangular parallelepiped shape, and may not have all the six wall portions 101 to 106. For example, the first and second cartridges 100a and 100b may be configured as a hexahedron having a substantially trapezoidal shape when viewed in the direction of the arrow X (when viewed from the side), or when viewed from the side. It may be configured as a substantially disc body having a substantially elliptical shape. Each wall part 101-106 which comprises the external shape of the 1st and 2nd cartridge 100a, 100b does not need to have a flat surface and a smooth surface, and may have an unevenness | corrugation. Moreover, it does not need to extend in a substantially planar shape, and there may be a cut or a tear. Each wall part 101-106 may be bent in the shape of a substantially curved surface. In addition, each wall part 101-106 may have flexibility, and the structure by which the bag-shaped member in which the ink was accommodated in the frame comprised with the flame | frame may be hold | maintained may be sufficient.

F4. Modification 4:
In the first embodiment, the lever portion 230 that is a rotation mechanism of the holder portion 200 has a function as an engaged portion with respect to the main engaging portion 120 of the first and second cartridges 100a and 100b. On the other hand, the lever portion 230 of the holder portion 200 may not have a function as an engaged portion with respect to the main engaging portion 120 of the first and second cartridges 100a and 100b. The lever part 230 of the holder part 200 is pressed against the first side wall part 125 and the second side wall part 126 when the first and second cartridges 100a and 100b are mounted, and then rotates and moves without returning to the initial position. It may stay at the position after the rotational movement. Even in such a configuration, the arrangement angle when the first and second cartridges 100a and 100b are mounted is defined with reference to the lever portion 230 of the holder portion 200.

F5. Modification 5:
In the first embodiment, the lever portion 230 that is the rotation mechanism of the holder portion 200 includes the two leg portions 231 and the bridging portion 232. On the other hand, the lever part 230 may have another structure. For example, the bridge portion 232 may be omitted, and the two leg portions 231 may rotate independently of each other. In the first embodiment, the lever portion 230 of the holder portion 200 is urged by the urging mechanism. On the other hand, the lever part 230 does not need to be biased. In this case, after the lever part 230 is pressed by the first side wall part 125 and the second side wall part 126 and rotationally moved, the lever part 230 may be returned to the initial position by the user's fingertip operation.

F6. Modification 6:
In the first embodiment, when the main engagement portion 120 of the first and second cartridges 100a and 100b is engaged with the lever portion 230, the first side wall portion 125 and the second side wall portion 126 are not in the lever portion. 230 is not in contact with the lever 230 and the pressed state is released. On the other hand, the first side wall portion 125 and the second side wall portion 126 are also provided with the lever portion 230 when the main engagement portion 120 of the first and second cartridges 100a and 100b is engaged with the lever portion 230. The pressing state may be continued in contact with. In this specification, the “pressed state is released” state means a state in which the external force applied to the object by pressing is almost lost, and the object is in contact with the object. It may be a state where the state is maintained.

F7. Modification 7:
In the first embodiment, the distance WE between the first sidewall portion 125 and the second sidewall portion 126 in the direction of the arrow X is equal to the contact portion CP of the first and second terminals 151 and 152 in the direction of the arrow X. It is comprised larger than the distance WT between (FIG. 22). On the other hand, the distance WE between the first side wall portion 125 and the second side wall portion 126 in the direction of the arrow X is between the contact portions CP of the first and second terminals 151 and 152 in the direction of the arrow X. It may be configured to be smaller than the distance WT.

F8. Modification 8:
In the first embodiment, the extending portion 113 extending from the lid constituting the second wall portion 102 extends to the back side of the main engaging portion 120 so that a part of the main engaging portion 120 is formed. It is composed. The extending part 113 may be integrated with the main engaging part 120 to form the first side wall part 125 and the second side wall part 126.

F9. Modification 9:
In the first embodiment, the first and second terminals 151 and 152 are used to detect the mounting state of the first and second cartridges 100 a and 100 b with respect to the holder part 200. On the other hand, the first and second terminals 151 and 152 may be used for purposes other than detecting the mounting state of the first and second cartridges 100a and 100b. For example, the first and second terminals 151 and 152 may be used as power supply terminals and ground terminals, or may be used for data signal communication. In the circuit board 130 of the first embodiment, the terminals 153 to 159 other than the first and second terminals 151 and 152 may be omitted. Also in this case, the first and second terminals 151 and 152 may be used for purposes other than the detection of the mounted state of the first and second cartridges 100a and 100b.

F10. Modification 10:
In the first embodiment, the first and second cartridges 100a and 100b are attached to the holder portion 200 while drawing a locus of rotational movement with the upper end portion of the third wall portion 103 as a fulcrum ( 19 and 20). On the other hand, the first and second cartridges 100a and 100b may not be configured to be mounted while drawing a locus of rotational movement with the upper end portion of the third wall portion 103 as a fulcrum. The first and second cartridges 100 a and 100 b may be mounted on the holder unit 200 by a linear track from above the holder unit 200.

F11. Modification 11:
In the first embodiment, the ink supply ports 110, 110 a to 110 c of the first and second cartridges 100 a and 100 b are the bottom wall portions on which the first and second cartridges 100 a and 100 b are placed in the holder portion 200. It is provided on the first wall 101 facing the 201. On the other hand, the ink supply ports 110 and 110a to 110c may be provided on other wall portions. The ink supply ports 110, 110 a to 110 c are at least when the first and second cartridges 100 a, 100 b are attached to the holder portion 200, and the ink supply ports 110, 110 a, the first side wall portion 125, and the second in the supply port connection direction. The distance between the side wall 126 and the side wall 126 may be longer than the distance between the ink supply ports 110 and 110a and the rotation axis RX of the lever 230 in the supply port connection direction.

F12. Modification 12:
In the first embodiment, the first and second cartridges 100 a and 100 b include the circuit board 130 that is electrically connected to the printing apparatus 10. In the first and second cartridges 100a and 100b, the circuit board 130 is not essential and may be omitted.

F13. Modification 13:
In the first embodiment, the printing apparatus 10 is equipped with the first and second cartridges 100a and 100b. On the other hand, the printing apparatus 10 may be mounted with a single cartridge in which the first and second cartridges 100a and 100b are combined. Alternatively, the printing apparatus 10 may be equipped with a plurality of cartridges having a single ink chamber, such as the first cartridge 100a. The printing apparatus 10 may be equipped with a plurality of cartridges having a plurality of ink chambers such as the second cartridge 100b.

F14. Modification 14:
In the circuit board 130 of the first and second ink cartridges 100a and 100b in the first embodiment, the contact portions CP of the plurality of terminals 151 to 159 are divided into two rows of an upper stage and a lower stage, and the direction of the arrow X Are arranged in an arrangement direction parallel to the. On the other hand, in the circuit board 130, all the contact portions CP of the terminals 151 to 159 do not have to be arranged in a predetermined arrangement direction. In the circuit board 130, at least the contact portions CP of the first and second terminals 151 and 152 among the contact portions CP of the terminals 151 to 159 may be arranged in one predetermined arrangement direction. In this case, the predetermined arrangement direction may not be a direction parallel to the direction of the arrow X, and may be a direction inclined with respect to the direction of the arrow X. In the first embodiment, the terminals 151 to 159 have an arrangement configuration similar to the arrangement configuration of the contact portions CP. On the other hand, the terminals 151 to 159 do not have to have the same arrangement configuration as that of the contact portions CP. For example, each contact portion CP has an arrangement configuration in which the adjacent ones are arranged in a straight line, whereas the terminals 151 to 159 are arranged so that the adjacent ones are offset vertically. It may have an arrangement configuration. In the first embodiment, the contact portion CP is provided at a substantially central position of each of the terminals 151 to 159. On the other hand, each contact part CP of each terminal 151-159 may be provided in different positions, such as the position which approached the side edge part in each terminal 151-159, and the vicinity position of a corner | angular part. Each of the terminals 151 to 159 is not limited to a substantially rectangular shape, and may have various shapes.

F15. Modification 15:
In each of the above-described embodiments and modifications, ink supply units such as the first and second cartridges 100a and 100b mounted on the printing apparatus 10 including the liquid ejecting mechanism for ejecting ink are used as the liquid supply unit of the present invention. Explained. On the other hand, the liquid supply unit of the present invention may be configured as a unit other than the ink supply unit. The liquid supply unit of the present invention may be configured as, for example, a water supply unit that is mounted on a high pressure washer that injects a liquid such as water onto a cleaning target and performs cleaning to supply water.

F16. Modification 16:
As described in the first embodiment, the first and second terminals 151 and 152 and the fifth and sixth terminals 155 and 156 have similar functions. The description of the relationship between the first and second terminals 151 and 152 and the other components in the first and second ink cartridges 100a and 100b and the holder unit 200 in each of the above embodiments and modifications is as follows. It is also possible to interpret by replacing the first and second terminals 151 and 152 with the fifth and sixth terminals 155 and 156. That is, the fifth and sixth terminals 155 and 156 can be interpreted as corresponding to the first detection terminal having the first contact portion and the second detection terminal having the second contact portion, respectively. Even with such a replaced configuration, the same operational effects as described in the first embodiment can be obtained.

  The present invention is not limited to the above-described embodiments, examples, and modifications, and can be realized with various configurations without departing from the spirit thereof. For example, the technical features in the embodiments, examples, and modifications corresponding to the technical features in each embodiment described in the summary section of the invention are to solve some or all of the above-described problems, or In order to achieve part or all of the above effects, replacement or combination can be performed as appropriate. Further, if the technical feature is not described as essential in the present specification, it can be deleted as appropriate.

DESCRIPTION OF SYMBOLS 10 ... Printing apparatus 11 ... Housing | casing 12 ... Paper feed port 13 ... Top cover 14 ... Paper discharge port 16 ... Operation part 20 ... Main-body part 21 ... Control part 22 ... Conveyance part 23 ... Printing part 25 ... Conveyance roller 27 ... Carriage 28 ... guide rails 100a, 100b, 100aA, 100bA, 100aB, 100bB, 100C ... cartridges 101-106 ... wall part 102c ... lid 108, 108a-108c ... ink chamber 110, 110a-110c ... ink supply port 113 ... extension part 114 ... Projection 115 ... Through-hole 116 ... Air channel groove 117 ... Seal member 118 ... Groove 120, 120A ... Main engagement part 121 ... First flange 122 ... Notch 123 ... Second flange 125 ... First side wall Part 126 ... Second side wall part 127 ... End face 130 ... Circuit board 131 ... Terminal part 132 ... Storage devices 151 to 159 ... Terminal 200 ... Holder Parts 201 to 205... Wall part 210... Cartridge housing chambers 211 to 214 .. ink receiving part 215... Seal part 217 .. urging mechanism 221 .. first subwall part 224 ... second subwall part 225. 227 ... fitting hole 230 ... lever part 231 ... leg part 232 ... bridging part 235 ... convex part 236 ... flat plate part 237 ... end face 250 ... device side terminal part 300 ... ink storage part 301 ... ink discharge port 310 ... adapter part 312 ... Opening 330 ... Ink supply unit 331 ... Ink supply tube 332 ... Ink storage chamber CP ... Contact portion

Claims (12)

Fulcrum of rotation and the first pressed portion and the rotation mechanism and a second object to be the pressing unit, and a liquid introduction tube can be introduced liquid, the liquid ejecting apparatus having an electrode portion, a first object A liquid supply unit that can be mounted when the pressing portion and the second pressed portion rotate,
A liquid supply port capable of supplying a liquid to the liquid introduction pipe of the liquid ejecting apparatus;
A first pressing part capable of pressing the first pressed part;
A second pressing part capable of pressing the second pressed part;
A plurality of contact parts arranged in at least one predetermined arrangement direction so as to be electrically connectable to the electrode part of the liquid ejecting apparatus;
With
When the liquid supply unit is attached to the liquid ejecting apparatus, the distance between the liquid supply port and the first pressing portion in the connection direction of the liquid supply port toward the liquid introduction tube, and the liquid In a state where the distance between the supply port and the second pressing portion is longer than the distance between the liquid supply port and the fulcrum in the connection direction, the first pressing portion and the second pressing portion are 1 Ri depressible der the rotating mechanism as the pressed portion and the second pressed portion is rotated in a direction away from the liquid supply unit,
The plurality of contact parts include a first contact part and a second contact part located at both ends in the arrangement direction,
The liquid supply unit , wherein a distance between the first pressing portion and the second pressing portion in the arrangement direction is larger than an interval between the first contact portion and the second contact portion in the arrangement direction . The liquid supply unit according to claim 1,
When the liquid supply unit is attached to the liquid ejecting apparatus, the liquid supply unit has an abutting portion that can abut against the rotating mechanism,
The first pressing portion and the second pressing portion are configured such that the pressure on the first pressed portion and the second pressed portion is released when the contact portion is in contact with the rotation mechanism. A liquid supply unit. The liquid supply unit according to claim 1 or 2 ,
The liquid ejecting apparatus includes a first detection terminal and a second detection terminal for detecting attachment of the liquid supply unit;
The first detection terminal has the first contact portion,
The second detection terminal is a liquid supply unit having the second contact portion. The liquid supply unit according to claim 3 ,
A storage device;
Data having a third contact portion that can be electrically connected to the liquid ejecting apparatus, located between the first detection terminal and the second detection terminal in the arrangement direction, and capable of supplying data to the storage device A terminal,
A fourth contact portion electrically connectable to the liquid ejecting apparatus, and located between the first detection terminal and the second detection terminal in the arrangement direction and capable of supplying a high potential to the storage device; A high potential terminal;
A fifth contact portion that can be electrically connected to the liquid ejecting apparatus, and is located between the first detection terminal and the second detection terminal in the arrangement direction, and is capable of supplying a low potential to the storage device; A low potential terminal;
A liquid supply unit comprising: The liquid supply unit according to any one of claims 1 to 4,
The first pressing portion, the second pressing portion, the first contact portion, and a wall surface on which the second contact portion is disposed,
The liquid supply unit, wherein the first pressing portion protrudes from the wall surface more than the first contact portion. Any one of claim 5 dependent on claim 2, claim 5 dependent on claim 3 dependent on claim 2, and claim 5 dependent on claim 3 dependent on claim 2 the liquid supply unit according to one item,
The liquid supply unit, wherein the abutting portion is disposed on the wall surface. The liquid supply unit according to claim 5 or 6 , wherein
An intersection wall surface intersecting the wall surface;
The abutment portion is a liquid supply unit configured by an extending portion extending from the intersecting wall surface to the wall surface. The liquid supply unit according to any one of claims 5 to 7 ,
A first wall;
A second wall facing the first wall;
A third wall portion intersecting the first wall portion and the second wall portion;
A fourth wall portion intersecting the first wall portion and the second wall portion and facing the third wall portion;
A fifth wall that intersects the first wall, the second wall, the third wall, and the fourth wall;
A sixth wall portion that intersects the first wall portion, the second wall portion, the third wall portion, and the fourth wall portion, and that faces the fifth wall portion;
With
The wall surface is a wall surface of the fourth wall portion,
When the liquid supply unit is viewed in plan from the fourth wall portion toward the third wall portion,
The distance from the fifth wall portion to the first pressing portion is shorter than the distance from the fifth wall portion to the first contact portion,
The liquid supply unit, wherein a distance from the sixth wall portion to the second pressing portion is shorter than a distance from the sixth wall portion to the second contact portion. The liquid supply unit according to claim 8 , wherein
When the liquid supply unit is viewed in plan from the fourth wall portion toward the third wall portion,
The liquid supply unit, wherein the first contact portion and the second contact portion are located between the first pressing portion and the second pressing portion. The liquid supply unit according to claim 8 or 9 , wherein
The first wall has the liquid supply port,
When the liquid supply unit is viewed in plan in a direction from the first wall portion toward the second wall portion,
The liquid supply unit, wherein a distance from the center of the liquid supply port to the first pressing portion is longer than a distance from the center of the liquid supply port to the first contact portion. The liquid supply unit according to claim 10 ,
The center of the liquid supply port is a liquid supply unit located between the first contact portion and the second contact portion in a direction from the fifth wall portion to the sixth wall portion. The liquid supply unit according to any one of claims 8 to 11 ,
A liquid supply unit configured to be mounted by rotating around a place where the third wall portion and the liquid ejecting apparatus come into contact with each other.

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