Circuit board and liquid container

Abstract

A circuit board configured to be mounted in a printing device and configured to come into contact with a plurality of device-side terminals when the circuit board is mounted in the printing device, the printing device comprising a print head, a liquid introduction portion that introduces a liquid into the print head, a receiving portion that receives a liquid receiving container and is provided with the liquid introduction portion, and the plurality of device-side terminals provided on the receiving portion, the circuit board comprising: a basic element; a component provided on the base element; and a plurality of terminals provided on the base member, wherein which has a variety of connections a ground terminal coupled to the component and having a ground contact portion configured to contact a device-side ground terminal of the plurality of device-side terminals when the board is mounted in the printing device, and another connection group, the other connection group has at least a data terminal coupled to the component and having a data contact portion configured to contact a device-side data terminal of the plurality of device-side terminals when the board is mounted in the printing device, and a clock terminal coupled to the component and having a clock contact portion configured to contact a device-side clock terminal of the plurality of device-side terminals when the board is mounted in the printing device, the component is configured to output signals via the data terminal indicating that the data terminal is not short-circuited to at least one terminal other than the data terminal from the other terminal group, in a top view: when two virtual orthogonal straight lines are set on the base element as the first virtual line and the second virtual line, and all contact portions of all terminals provided on the base element are projected onto the second virtual line, all contact portions are projected at different positions along the second virtual line, and the first virtual line passes through a midpoint on the second virtual line between two projection positions that are farthest apart from each other among projection positions of all contact portions, the first virtual line divides the base element into a first region and a second region, the first region being on one side of the first virtual line and the second region being on the other side of the first virtual line, the data contact section and the clock contact section being arranged in the first region and the ground contact section being arranged in the second region, and the arrangement of contact sections, including all contact sections, is asymmetrical about the first virtual line.

Description

BACKGROUND 1. Technical field

[0001] The present disclosure relates to a circuit board and a liquid containing container. 2. State of the art

[0002] In the prior art, a technique for detecting mounting of an ink cartridge detachably mounted in a printing device using a mounting detection terminal of a terminal group is known (International Patent Publication No. WO 2012 / 029311). The terminal group includes five storage terminals and four mounting detection terminals having a terminal to which a high voltage higher than a power source voltage is applied. The mounting detection terminals are arranged at the four corners of the terminal group to surround the storage terminals. In WO 2012 / 029311, when it is detected that the mounting detection terminal is electrically coupled to a device-side terminal, the printing device determines that the ink cartridge is mounted in the printing device.

[0003] Furthermore, a technique for detecting the mounting of an ink cartridge detachably mounted in a printing device using a memory port is known (JP-A-2011-170740). A memory device, such as a memory provided in the ink cartridge, outputs a response signal for notifying that the memory device is coupled to a host device, such as a printing device, to a host terminal via a reset port, a clock port, or a data port. The host device uses the response signal from the memory device to determine whether or not the memory device is coupled to the host device without using a port dedicated to coupling detection.

[0004] However, WO 2012 / 029311 and JP-A-2011-170740 do not mention short-circuit detection between the memory terminals. In WO 2012 / 029311, if a short circuit occurs between the memory terminals even though it is determined that the ink cartridge is mounted in the printing device, there is a possibility that the printing device is not operating normally or that reading / writing to the ink cartridge's memory is not performed normally. In JP-A-2011-170740, if a short circuit occurs between the memory terminals, there is a possibility that the memory may not be able to output an origin signal to the printing device, and the printing device may not be able to determine that the memory is properly coupled to the printing device. DEPICTION

[0005] An advantage of some aspects of the disclosure is to provide a technique that can prevent a possibility of a short circuit occurring between terminals in a liquid storage container, such as an ink cartridge. Alternatively, another advantage of some aspects of the disclosure is to provide a technique that can detect a short circuit when the short circuit occurs between at least some terminals. The present disclosure achieves at least one of the above-mentioned plurality of advantages.

[0006] The invention provides a circuit board according to independent claims 1 and 20 and a liquid receiving container according to independent claims 40 and 60. Particularly preferred embodiments of the invention emerge from the subclaims. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Embodiments of the present invention are explained herein by way of example only with reference to the accompanying drawings, in which: Fig. 1 is a perspective view illustrating a hardware configuration of a printing system. Fig. 2 is a schematic diagram illustrating a configuration of the printing system. Fig. 3 is a first perspective view illustrating a configuration of a liquid receiving container. Fig. 4 is a second perspective view illustrating the configuration of the liquid receiving container. Fig. Figure 5 is a first diagram illustrating a configuration of a circuit board. Fig. 6 is a second diagram showing the configuration of the board. Fig. 7A is a diagram illustrating a form in which the liquid receiving container is to be mounted on a carriage. Fig. Figure 7B is a first diagram illustrating a coupling mechanism. Fig. Figure 7C is a second diagram illustrating the coupling mechanism. Fig. Figure 8 is a schematic diagram illustrating an electrical configuration of the printing system. Fig. 9 is a diagram illustrating a functional configuration of a printing device together with a liquid receiving container. Fig. 10A is a flowchart illustrating a process executed by the printing apparatus during the coupling state determination processing. Fig. 10B is a flowchart illustrating a process performed by a device during coupling state determination processing. Fig. 11A is a timing chart when the printing device outputs a request signal. Fig. 11B is a timing diagram when the device outputs a first response signal and a second response signal. Fig. Figure 11C is a diagram showing details of the first response signal. Fig. Figure 11D is a diagram showing details of the second response signal. Fig. 12 is a diagram illustrating an overview of the coupling state determination processing executed by a main control unit. Fig. 13A is a first timing chart illustrating the coupling state determination processing. Fig. 13B is a second timing chart illustrating the coupling state determination processing. Fig. 14A is a third timing chart illustrating the coupling state determination processing. Fig. 14B is a fourth timing chart illustrating the coupling state determination processing. Fig. 15 is a fifth timing chart illustrating the coupling state determination processing. Fig. 16A is a sixth timing chart illustrating the coupling state determination processing. Fig. 16B is a seventh timing chart illustrating the coupling state determination processing. Fig. 17 is an eighth timing chart illustrating the coupling state determination processing. Fig. 18A is a ninth timing chart illustrating the coupling state determination processing. Fig. 18B is a tenth timing chart illustrating the coupling state determination processing. Fig. 19 is an eleventh timing chart illustrating the coupling state determination processing. Fig. 20A is a twelfth timing chart illustrating the coupling state determination processing. Fig. 20B is a thirteenth timing chart illustrating the coupling state determination processing. Fig. Figure 20C is a diagram illustrating another concrete example of coupling state determination processing. Fig. 21A is a diagram illustrating a circuit board as Embodiment 1. Fig. 21B is a diagram showing arrangement examples shown in Nos. 2 and 3 in Fig. 21A. Fig. 22 is a diagram showing a board with two patterns as Embodiment 2. Fig. 23 is a diagram showing a board with two patterns as Embodiment 3. Fig. 24 is a diagram showing a board with two patterns as Embodiment 4. Fig. 25 is a diagram showing a board with two patterns as Embodiment 4. Fig. 26 is a diagram illustrating a circuit board as Embodiment 5. Fig. 27 is a diagram showing a board with two patterns as Embodiment 6. Fig. 28 is a diagram illustrating a circuit board as Embodiment 7. Fig. 29 is a perspective view illustrating a liquid containing container as Embodiment 1. Fig. 30 is a perspective view illustrating a liquid containing container as Embodiment 2. Fig. 31 is an enlarged view illustrating a periphery of the circuit board of the liquid receiving container. Fig. 32 is a perspective view illustrating a liquid containing container as Embodiment 3. Fig. 33 is a perspective view illustrating a liquid containing container as Embodiment 4. Fig. 34 is a perspective view illustrating a liquid containing container as Embodiment 5. Fig. 35 is a perspective view illustrating a liquid containing container as Embodiment 6. Fig. 36 is a diagram illustrating a liquid containing container as Embodiment 7. Fig. 37 is a diagram illustrating a liquid containing container as Embodiment 8. Fig. 38 is a perspective view illustrating a liquid containing container as Embodiment 9. Fig. 39 is an enlarged view showing the circumference of the board. Fig. 40 is a first diagram illustrating a process of mounting the liquid receiving container on a receiving portion of the printing apparatus. Fig. 41 is a second diagram illustrating the process of mounting the liquid receiving container on the receiving portion of the printing device. Fig. 42 is a diagram showing a state in which the mounting of the liquid receiving container is completed. Fig. 43 is a diagram illustrating a printing system as Embodiment 1. Fig. 44 is a diagram illustrating a printing system as Embodiment 2. Fig. 45 is a diagram illustrating a printing system as Embodiment 3. Fig. 46 is a diagram illustrating a printing system as Embodiment 4. Fig. 47A is a first timing diagram in a printing system having six liquid containment tanks. Fig. 47B is a second timing diagram in the printing system having the six liquid receiving containers. Fig. 48 is a schematic diagram illustrating an electrical configuration of the printing system having the six liquid receiving containers. Fig. 49 is a diagram illustrating a device as Embodiment 1. DESCRIPTION OF THE EMBODIMENTS A. First Embodiment: A1. Hardware Configuration:

[0008] The overview of a printing system 1000 is provided with reference to Fig. 1 and Fig. 2 described. Fig. 1 is a perspective view illustrating a hardware configuration of the printing system 1000. Fig. 2 is a schematic diagram illustrating a configuration of the printing system 1000. In Fig. 1, an X-axis, a Y-axis, and a Z-axis are indicated, which are perpendicular to each other. Directions in which arrows of the X-axis, the Y-axis, and the Z-axis are directed indicate positive directions along the X-axis, the Y-axis, and the Z-axis, respectively. The positive directions along the X-axis, the Y-axis, and the Z-axis are a +X direction, a +Y direction, and a +Z direction, respectively. Directions opposite to the directions in which the arrows of the X-axis, the Y-axis, and the Z-axis are directed indicate negative directions along the X-axis, the Y-axis, and the Z-axis, respectively. The negative directions along the X-axis, the Y-axis, and the Z-axis are a -X direction, a -Y direction, and a -Z direction, respectively. If positivity and negativity do not matter in the directions along the X-axis, the Y-axis, and the Z-axis, the directions can be referred to as an X-direction, a Y-direction, and a Z-direction, respectively.The same applies to the drawings and description below. The X-axis, Y-axis, and Z-axis drawn in the other drawings correspond to the X-axis, Y-axis, and Z-axis in , respectively. Fig. 1. In Fig. 1, the front direction of the printing system 1000 in the normal use position of the printing system 1000 is set as the +Y direction. It is assumed that the +Z direction is the gravity direction and the -Z direction is the antigravity direction.

[0009] The printing system 1000 includes a printing device 20 and a plurality of liquid receptacles 100. Specifically, the printing device 20 is an inkjet printer. Specifically, the liquid receptacle 100 is an ink cartridge. The printing device 20 includes a head drive mechanism, a main scanning feed mechanism, and a sub-scanning feed mechanism.

[0010] The head drive mechanism includes a carriage 30. The carriage 30 includes a receiving portion 4 and a print head 5. The receiving portion 4 is configured to detachably mount four liquid receiving containers 100. In the present disclosure, the phrase "the liquid receiving container 100 is mounted in the printing device 20" means that the liquid receiving container 100 is physically attached to the printing device 20, and a contact portion cp of a terminal 290 described later is electrically coupled to a device-side terminal 490 described later. Each of the four liquid receiving containers 100 is accommodated at a predetermined position of the receiving portion 4. In the present disclosure, the four liquid receiving containers 100 accommodate liquids having colors different from each other. Concretely, the liquid is an ink and will be referred to as ink hereinafter.When distinguishing between the four liquid receptacles 100, the four liquid receptacles 100 are referred to as liquid receptacles 100A to 100D. The carriage 30 is configured to be movable to a replacement position where replacement of the liquid receptacle 100 is possible and to a standby position where replacement of the liquid receptacle 100 is not possible.

[0011] The print head 5 is provided on the surface of the carriage 30 in the +Z direction. A plurality of nozzles for ejecting ink droplets are provided on the surface of the print head 5 facing the +Z direction. Each nozzle is coupled to one of the liquid accommodating containers 100A to 100D mounted on the accommodating portion 4 via a flow path in the carriage 30. The accommodating portion 4 is provided with a liquid introducing portion 6 described later and a coupling mechanism 400 described later. The liquid introducing portion 6 is configured to be detachable from a liquid supply port (described later) 104op of the liquid accommodating container 100. At the liquid introducing portion 6, ink is supplied from the liquid accommodating container 100, and the ink is introduced into the print head 5 via the flow path in the carriage 30.The coupling mechanism 400 has a plurality of device-side terminals 490 described later.

[0012] The main scanning feed mechanism includes a drive belt 36, a carriage motor 32, a shift shaft 34, and a pulley 38. The drive belt 36 is an endless belt and is stretched between the carriage motor 32 and the pulley 38. The carriage 30 is attached to the drive belt 36. The shift shaft 34 is provided parallel to the shaft of a paper feed roller 26 described later and holds the carriage 30 slidably. As the carriage motor 32 rotates, the carriage 30, attached to the drive belt 36, moves in the +X direction and the -X direction along the shift shaft 34.

[0013] The sub-scan feed mechanism includes a paper feed motor 22 and the paper feed roller 26. As the paper feed motor 22 rotates, the paper feed roller 26 transports a print medium AP in the Y direction.

[0014] The printing device 20 further includes a main control unit 40. The main control unit 40 is coupled to the carriage 30 via a cable 31. A bus 46 is formed in the cable 31, and the main control unit 40 is electrically coupled to a sub-control board 500 (described later) of the carriage 30 via the bus 46.

[0015] The main control unit 40 controls each of the above mechanisms to realize print processing. For example, the main control unit 40 receives a user's print job from a computer 90 via a connector 80 and performs printing based on the content of the received print job. A print medium PA is transported in the +Y direction by the paper feed roller 26, and the print head 5 provided on the carriage 30 is moved in the +X direction and the -X direction by the drive belt 36. In this way, ink is ejected from the print head 5 in the +Z direction. The ejected ink lands on a specific location on the print medium PA, and an image is formed. In the present disclosure, an "image" includes characters and symbols. In the present disclosure, the +X direction and the -X direction in which the carriage 30 moves are collectively referred to as the "main scanning direction."The -Y direction and +Y direction in which the printing medium PA is fed are collectively referred to as the “sub-scanning direction”.

[0016] The printing device 20 further includes an operating section 70. Using the operating section 70, the user makes various settings of the printing device 20 or checks the status of the printing device 20.

[0017] As described above, the printing apparatus 20 includes the print head 5, the liquid introduction portion 6 for introducing a liquid into the print head 5, the accommodation portion 4 provided with the liquid introduction portion 6 and accommodating the liquid accommodation container 100, and the plurality of apparatus-side ports 490. The print head 5 is provided in the printing apparatus 20. The print head 5 is not provided in the liquid accommodation container 100. Printing systems in which the print head 5 is provided in the liquid accommodation container 100 are of a different type and are located in a different technical field than the present disclosure.

[0018] The configuration of the liquid receiving container 100 is described with reference to Fig. 3 and Fig. 4 described. Fig. 3 is a first perspective view illustrating the configuration of the liquid receiving container 100. Fig. 4 is a second perspective view illustrating the configuration of the liquid storage container 100. The X-axis, Y-axis, and Z-axis directions for the liquid storage container 100 are determined based on a state in which the printing device 20 is arranged on a horizontal plane parallel to the X-direction and the Y-direction, and the liquid storage container 100 is mounted in the printing device 20, as shown in Fig. 1 is shown.

[0019] As in Fig. 3 and Fig. 4, the outer shape of the liquid receiving container 100 is essentially a cuboid shape. As shown in Fig. 3, the liquid receiving container 100 includes a liquid receiving body 101 capable of receiving an ink as a liquid, and a liquid supply portion 104 having a liquid supply port 104op. A circuit board 120 of the liquid receiving container 100 is shown in Fig. 4 shown.

[0020] The liquid receiving body 101 forms the outer shell of the liquid receiving container 100. The liquid receiving body 101 has a first wall 101wf, a second wall 101wr, a third wall 101wb, a fourth wall 101wu, a fifth wall 101wsa, and a sixth wall 101wsb. An ink chamber 150 that receives an ink is formed within the liquid receiving body 101 by the six walls 101wf, 101wr, 101wb, 101wu, 101wsa, and 101wsb. The first wall 101wf is a wall on the +Y direction side and forms a front wall. The front wall faces the front of the printing system 1000. The second wall 101wr faces the first wall 101wf. The second wall 101wr is a wall on the -Y direction side and forms a rear wall. The rear wall faces the rear side of the printing system 1000.The third wall 101wb intersects with the first wall 101wf and the second wall 101wr and is substantially perpendicular to the first wall 101wf and the second wall 101wr in the present embodiment. The third wall 101wb is a wall on the +Z direction side and forms a lower wall. The fourth wall 101wu intersects with the first wall 101wf and the second wall 101wr and is substantially perpendicular to the first wall 101wf and the second wall 101wr in the present embodiment. The fourth wall 101wu faces the third wall 101wb. The fourth wall 101wu is a wall on the -Z direction side and forms an upper wall. The fifth wall 101wsa intersects the first wall 101wf to the fourth wall 101wu, and is substantially perpendicular to the first wall 101wf to the fourth wall 101wu in the present embodiment. The fifth wall 101wsa is a wall on the -X direction side and forms a right side wall.The sixth wall 101wsb intersects the first wall 101wf to the fourth wall 101wu and is substantially perpendicular to the first wall 101wf to the fourth wall 101wu in the present embodiment. The sixth wall 101wsb faces the fifth wall 101wsa. The sixth wall 101wsb is a wall on the +X direction side and forms a left side wall.

[0021] The liquid supply portion 104 is a tubular member protruding from the third wall 101wb. The liquid supply port 104op is located on the tip side of the liquid supply portion 104. The liquid supply port 104op communicates with the ink chamber 150 of the liquid accommodating body 101. When the liquid accommodating container 100 is mounted on the carriage 30 of the printing apparatus 20, an ink is supplied to the liquid introduction portion 6 (described later) of the carriage 30 through the liquid supply port 104op. The liquid supply port 104op is sealed with a film 104f. The liquid supply port 104op is configured to be detachable from the liquid introduction portion 6. When the liquid accommodating container 100 is mounted on the carriage 30, the film 104f is broken by the liquid introduction portion 6.The ink stored in the ink chamber 150 is supplied to the print head 5 of the printing device 20 via the liquid introduction section 6. As the ink in the ink chamber 150 is consumed, air is introduced into the ink chamber 150 through an ambient air vent hole (not shown).

[0022] A direction in which the liquid storage container 100 is mounted on the carriage 30 of the printing device 20 is defined as a mounting direction MD. The mounting direction MD is also a direction in which the circuit board 120 is mounted on the carriage 30 of the printing device 20. In the present embodiment, the mounting direction MD is the +Z direction. Two mutually perpendicular directions are referred to as a first direction FD and a second direction SD. The first direction FD is a direction including a component of the mounting direction MD. In the present embodiment, the first direction FD is the Z direction, and the second direction SD is the X direction. The first direction FD is a direction substantially along a front surface 120fa of the circuit board 120.

[0023] The first direction FD is also defined as follows. For example, the first direction FD is a direction perpendicular to a virtual plane including the liquid supply port 104op. For example, the first direction FD is a direction in which the later-described device-side port 490 of the printing device 20 passes over a later-described port 290 when the liquid storage container 100 or the board 120 is mounted on the carriage 30. For example, the first direction FD is a direction orthogonal to a direction in which a plurality of device-side ports 490 of the printing device 20 are arranged. In other embodiments, when the front surface 120fa is inclined from the mounting direction MD, the first direction FD is a direction other than the mounting direction MD.

[0024] The circuit board 120 is used for the liquid storage container 100. In the present embodiment, as shown in Fig. 4, the circuit board 120 is provided on the second wall 101wr of the liquid receiving body 101. Details of the circuit board 120 will be described later.

[0025] Two protrusions Pr1 and Pr2 are formed on the second wall 101wr. The protrusions Pr1 and Pr2 protrude in the -Y direction. A hole 122 and a groove 121 for receiving the protrusions Pr1 and Pr2 are respectively formed in the circuit board 120. The hole 122 is formed in the center of an end portion of the circuit board 120 on the side of the liquid supply section 104. The groove 121 is formed in the center of an end portion of the circuit board 120 on a side opposite the liquid supply section 104. When the circuit board 120 is attached to the second wall 101wr, the protrusions Pr1 and Pr2 are respectively inserted into the hole 122 and the groove 121. After the circuit board 120 is inserted into the second wall 101wr, the tips of the protrusions Pr1 and Pr2 are crushed. As a result, the circuit board 120 is fixed to the second wall 101wr. The methods for fixing the circuit board 120 to the second wall 101wr are not limited to the above description.

[0026] In the present embodiment, when the liquid storage container 100 is viewed from a direction perpendicular to the second wall 101wr on which the circuit board 120 is provided, the circuit board 120 is arranged such that the center axis of the liquid supply port 104op intersects a first virtual line C1 described later. A contact portion cp, which will be described later, is not arranged on the center axis of the liquid supply port 104op.

[0027] As in Fig. 3, the liquid accommodating container 100 further includes a liquid detection element 110. The liquid detection element 110 is mounted in the liquid accommodating body 101. The liquid detection element 110 is an element used when the printing device 20 detects the remaining amount of ink in the liquid accommodating container 100. For example, the liquid detection element 110 may be a prism for optically detecting the remaining amount of ink, a piezoelectric element in which a piezoelectric body is sandwiched between two facing electrodes, or two electrodes that detect the remaining amount of ink by a difference in resistance between the electrodes. The liquid detection element 110 may not be provided.

[0028] The details of board 120 are given with reference to Fig. 5 and Fig. 6 described. Fig. Figure 5 is a first diagram showing the configuration of board 120. Fig. Figure 6 is a second diagram illustrating the configuration of the circuit board 120. As in Fig. 6, the circuit board 120 includes a base member 120bd, a plurality of terminals 290, a component 130, and wiring (not shown). The circuit board 120 may include other components. The base member 120bd has the front surface 120fa and a rear surface 120fb. In the present embodiment, the front surface 120fa and the rear surface 120fb are each flat surfaces. The base member 120bd may be made of a material forming a rigid substrate, a flexible substrate, or the like. The terminal 290 is formed of a conductor such as gold leaf.

[0029] In the present disclosure, the "surface" is defined, for example, as follows. For example, the "surface" refers to a surface of the base member 120bd facing the device-side terminals 490 (described later) when the liquid storage container 100 or the circuit board 120 is mounted in the printing device 20. For example, the "surface" refers to a surface of the base member 120bd on which the terminals 290 are formed, in addition to the surface facing the device-side terminals 490 (described later) when the liquid storage container 100 or the circuit board 120 is mounted in the printing device 20. For example, the "surface" refers to a surface of the base member 120bd having the contact portions cp described later. In the present embodiment, the "surface" refers to the front surface 120fa.In other embodiments, the “surface” refers to the front surface 120fa unless otherwise stated.

[0030] As in Fig. 5, the plurality of terminals 290 include a data terminal 210, a clock terminal 220, a power source terminal 230, a reset terminal 240, and a ground terminal 250. Each of the terminals 210, 220, 230, 240, and 250 is coupled to the device 130. Each of the terminals 210 to 250 is electrically coupled to the device 130 via a wiring pattern layer and a through-hole. The wiring pattern layer is provided on the front surface 120fa and the back surface 120fb of the base member 120bd. The through-hole is provided in the base member 120bd. For this purpose, the device 130 may have contact pins (not shown), for example, one contact pin for each of the terminals, such as a data contact pin, a clock contact pin, a power contact pin, a reset contact pin, and a ground contact pin.The contact pins are connected to the corresponding terminals 290 via the wiring pattern layer (not shown) or in other ways. The data terminal 210 is used to transmit and receive a data signal SDA between the device 130 and the printing device 20. Here, the "signal" refers to a voltage change. The signals transmitted and received via the data terminal 210 include, for example, signals indicating various types of data (described later) stored in a storage unit 138, signals controlled by a processing unit 136 (described later) that are not stored in the storage unit 138, and signals controlled by the main control unit 40 and a sub-control unit 50 of the printing device that are not stored in the storage unit 138.The clock terminal 220 is used to transmit a clock signal SCK from the printing device 20 to the device 130. The power source terminal 230 is used to transmit a power source voltage VDD from the printing device 20 to the device 130. The reset terminal 240 is used to transmit a reset signal RST from the printing device 20 to the device 130. The ground terminal 250 is grounded via a device-side terminal 450 of the printing device 20, described later. Voltages supplied to the data terminal 210, the clock terminal 220, the power source terminal 230, and the reset terminal 240 are voltages that the device 130 is configured to receive during normal operation. The ranges of the voltage supplied to the respective terminals 210 to 240 are the same. In the present embodiment, the above ranges are about 0 V to about 3.3 V.The voltages that the device 130 is configured to receive during normal operation include, for example, voltages lower than a voltage used to drive the print head 5, voltages as high as the power source voltage VDD, voltages lower than the withstand voltage of the device 130, voltages at which the device 130 is not broken, or voltages at which the device 130 does not perform an erroneous operation. Here, a check terminal used for shipping inspection is not included in the terminals 290 in the present disclosure. The check terminal is a terminal that does not come into contact with the device-side terminal 490 of the printing device 20 when the liquid storage container 100 is mounted in the printing device 20. The check terminal does not form a contact portion cp described later.

[0031] As in Fig. 5, the terminals 210, 220, 230, 240, and 250 have contact portions cp arranged to come into contact with the corresponding device-side terminals 410, 420, 430, 440, and 450 among a plurality of device-side terminals 490 of the coupling mechanism 400 in the printing device 20 when the liquid storage container 100 is mounted on the storage section 4. The contact portion cp of the data terminal 210 is also referred to as a data contact portion cpd. The contact portion cp of the clock terminal 220 is also referred to as a clock contact portion cpc. The contact portion cp of the power source terminal 230 is also referred to as a power source contact portion cpvd. The contact portion cp of the reset terminal 240 is also referred to as a reset contact portion cpr. The contact section cp of the ground terminal 250 is also referred to as the ground contact section cpvs.The contact portions cp are areas that form part of the terminals 210, 220, 230, 240, and 250, which are positioned to contact the device-side terminals 410, 420, 430, 440, and 450 when the liquid storage container 100 is mounted on the storage area 4. The contact portions cp are physical areas on the surface of the liquid storage container 100. The circuit board 120 has the data contact portion cpd, the clock contact portion cpc, the power source contact portion cpvd, the reset contact portion cpr, and the ground contact portion cpvs. The coupling between the terminals 290 and the device-side terminals 490 of the printing device 20 will be described later. The terminals 290 and the corresponding contact portions cp may have terminals other than the above terminals 210 to 250.

[0032] The data terminal 210 is used to detect whether or not the data terminal 210 is short-circuited with at least one of the clock terminal 220, the power source terminal 230, and the reset terminal 240. Specifically, the data terminal 210 is used to detect whether or not the data terminal 210 is in a short-circuit state (described later) with at least one of the clock terminal 220, the power source terminal 230, and the reset terminal 240. The data terminal 210 is used to detect whether or not the liquid receiving container 100 is mounted in the printing device 20. Specifically, the data terminal 210 is used to detect whether the liquid receiving container 100 is in a mounting-completed state described later or in a non-mounting-completed state described later.

[0033] The board 120 is in Fig. 5 viewed from above. As in Fig. 5, two orthogonal straight lines are referred to as the first virtual line C1 and the second virtual line C2. In the present embodiment, the first virtual line C1 extends along the first direction FD, and the second virtual line C2 extends along the second direction SD. In the present embodiment, two orthogonal straight lines extending substantially along the surface 120fa of the base member 120bd are referred to as the first virtual line C1 and the second virtual line C2.

[0034] Imagine that the positions of all contact portions cp of all terminals 290 provided on the base member 120bd of the circuit board 120 are projected onto the second virtual line C2. In the present embodiment, the data contact portion cpd, the clock contact portion cpc, the power source contact portion cpvd, the reset contact portion cpr, and the ground contact portion cpvs are projected onto the second virtual line C2. Regarding projection positions of the contact portions cp onto the second virtual line C2, the projection position of the data contact portion cpd is set as swd, the projection position of the clock contact portion cpc is set as swc, the projection position of the power source contact portion cpvd is set as swvd, the projection position of the reset contact portion cpr is set as swr, and the projection position of the ground contact portion cpvs is set as swvs.The projection positions swd, swc, swvd, swr, and swvs indicate orthogonal projections obtained by perpendicularly projecting the respective contact portions cpd, cpc, cpvd, cpr, and cpvs onto the second virtual line C2. At this time, all contact portions cp are projected at different positions. The data contact portion cpd, the clock contact portion cpc, the power source contact portion cpvd, the reset contact portion cpr, and the ground contact portion cpvs are arranged so that virtual lines parallel to the first virtual line C1 pass through the respective contact portions cp and their projection positions on the second virtual line C2 and are orthogonal to the second virtual line.At this time, the first virtual line C1 passes through the midpoint MP between the two farthest projection positions along the second virtual line C2 among the projection positions of all the contact portions cp. In the present embodiment, the first virtual line C1 passes through the midpoint MP between the projection position swvs of the ground contact portion cpvs and the projection position of the contact portion farthest from the projection position swvs of the ground contact portion cpvs among the projection positions swd, swc, swvd, and swr of the data contact portion cpd, the clock contact portion cpc, the power source contact portion cpvd, and the reset contact portion cpr. In the present embodiment, the first virtual line C1 passes through the midpoint between the projection position swc of the clock contact portion cpc and the projection position swvs of the ground contact portion cpvs.

[0035] Regarding the first virtual line C1, a region of the base member 120bd of the circuit board 120 on one side of the line is defined as the first region Rg1, and the other region of the base member 120bd on the other side of the line is defined as the second region Rg2. In the present embodiment, the first region Rg1 is a region on the -X direction side, which is the negative direction of the second direction SD, of the first virtual line C1, and the second region Rg2 is a region on the +X direction side, which is the positive direction of the second direction SD, of the first virtual line C1. The first region Rg1 can also be described as one of two regions of the circuit board 120 sandwiching the first virtual line C1, and the second region Rg2 is the other region of the circuit board 120 sandwiching the first virtual line C1.In other words, the first region Rg1 and the second region Rg2 are located on both sides of the first virtual line C1. Among all the contact portions cp, some contact portions cpa are arranged in the first region Rg1, and the remaining contact portions cpb are arranged in the second region Rg2. The some contact portions cpa arranged in the first region Rg1 include the data contact portion cpd, the clock contact portion cpc, the power source contact portion cpvd, and the reset contact portion cpr. The remaining contact portions cpb arranged in the second region Rg2 include the ground contact portion cpvs. The clock contact portion cpc, the data contact portion cpd, the reset contact portion cpr, and the power source contact portion cpvd are arranged on one side of the first virtual line C1, and the ground contact portion cpvs is arranged on the other side.The few contact portions cpa located in the first region Rg1 and the remaining contact portions cpb are arranged asymmetrically with respect to the first virtual line C1. None of the contact portions cp is provided on the first virtual line C1.

[0036] The ground contact portion cpvs is arranged at the end of the plurality of contact portions cp in the +X direction, which is the positive direction of the second direction SD. Any one of the clock contact portion cpc, the data contact portion cpd, the power source contact portion cpvd, and the reset contact portion cpr is arranged at the end of the plurality of contact portions cp in the -X direction, which is the negative direction of the second direction SD. Such any one of the contact portions cp is located at the outermost position on one side in the second direction SD among the plurality of contact portions cp. The ground contact portion cpvs is located at the outermost position on the other side in the second direction SD among the plurality of contact portions cp.A gap Wa is defined as the gap in the direction along the second virtual line C2 between the ground contact portion cpvs and the contact portion cp in the first area Rg1, which is projected at the farthest position from the projection position swvs of the ground contact portion cpvs when projected onto the second virtual line C2. In the present embodiment, the gap between the projection position swc of the clock contact portion cpc and the projection position swvs of the ground contact portion cpvs in the direction along the second virtual line C2 is set as Wa. In the present embodiment, a distance between the clock contact portion cp and the ground contact portion cpvs in the second direction SD is set as distance Wa.

[0037] The data contact portion cpd, the clock contact portion cpc, the power source contact portion cpvd, and the reset contact portion cpr are preferably located far away from the ground contact portion cpvs. For example, a gap in the direction along the second virtual line C2 between the ground contact portion cpvs and the contact portion cp projected onto the second virtual line C2 at the position closest to the projection position swvs of the ground contact portion cpvs among the contact positions cp in the first region Rg1 is equal to or larger than Wa / 2.In the present embodiment, a gap between the reset contact portion cpr located on the positive direction side of the second direction SD, among the contact portions cpd, cpvd, cpr, and cpvd except the ground contact portion cpvs in the first region Rg1, and the ground contact portion cpvs provided in the second region Rg2 in the second direction SD is equal to or larger than Wa / 2. For example, no contact portion cp coupled to the device 130 via the portion 290 is provided between the contact portion cp projected at the position closest to the projection position swvs of the ground contact portion cpvs among the contact portions cp except the ground contact portion cpvs in the first region Rg1 when projected onto the second virtual line C2, and the ground contact portion cpvs provided in the second region Rg2.In the present embodiment, no other contact portion cp coupled to the device 130 via the terminal 290 is provided between the reset contact portion cpr provided at the farthest position in the +X direction, which is the positive direction of the second direction SD, in the first region Rg1 and the ground contact portion cpvs provided in the second region Rg2. The other contact portions cpd, cpc, cpvd, cpr, and the ground contact portion cpvs arranged on the board 120 are not provided on the first virtual line C1.

[0038] At least one of the clock contact portion cpc, the power source contact portion cpvd, and the reset contact portion cpr is arranged on the circuit board 120 so as to be projected onto the second virtual line C2 between the projection position swd of the data contact portion cpd and the projection position swvs of the ground contact portion cpvs. Preferably, any two or more contact portions cp among the clock contact portion cpc, the power source contact portion cpvd, and the reset contact portion cpr are arranged on the circuit board 120 so as to be projected onto the second virtual line C2 between the projection position swd of the data contact portion cpd and the projection position swvs of the ground contact portion cpvs.In the present embodiment, the power source contact portion cpvd and the reset contact portion cpr are arranged on the circuit board 120 so as to be projected onto the second virtual line C2 between the projection position swd of the data contact portion cpd and the projection position swvs of the ground contact portion cpvs.

[0039] The data contact portion cpd is arranged on the circuit board 120 so as to be projected onto the second virtual line C2 between the projection positions of any two contact portions cp among the power source contact portion cpvd, the reset contact portion cpr, and the clock contact portion cpc. Among the contact portions cp, the data contact portion cpd is not the contact portion projected onto the second virtual line C2 at the outermost position on the second virtual line C2. In the present embodiment, the data contact portion cpd is arranged so as to be projected onto the second virtual line C2 between the projection positions of the clock contact portion cpc and the power source contact portion cpvd.

[0040] Either one or both of the data contact portion cpd and the reset contact portion cpr are arranged on the circuit board 120 so as to be projected onto the second virtual line C2 between the projection position swvd of the power source contact portion cpvd and the projection position swc of the clock contact portion cpc. The reset contact portion cpr is arranged so that its projection position swr onto the second virtual line C2 is adjacent to or beside the projection position swvd of the power source contact portion cpvd. In the present embodiment, the data contact portion cpd is arranged on the circuit board 120 so as to be projected onto the second virtual line C2 between the projection position swvd of the power source contact portion cpvd and the projection position swc of the clock contact portion cpc.The statement that two contact sections are "adjacent" or "side by side" to each other means that the contact sections are "adjacent" or "side by side" to each other among the contact sections, i.e., within the arrangement of contact sections. This does not necessarily mean that the two contact sections are closest to each other among the contact sections, as long as no other contact section is directly between them. Other components that are not among the contact sections, such as terminals, may be arranged between the two contact sections that are "adjacent" or "side by side" to each other without departing from the scope of the present disclosure.

[0041] The power source contact portion cpvd is arranged on the circuit board 120 such that its projection position swvd onto the second virtual line C2 is adjacent to the projection position swd of the data contact portion cpd.

[0042] In the present embodiment, the clock contact portion cpc is arranged on the circuit board 120 so as to be projected onto the second virtual line C2 at the position farthest from the projection position swvs of the ground contact portion cpvs. Further, the data contact portion cpd, the power source contact portion cpvd, and the reset contact portion cpr are arranged so as to be projected in this order in a direction from the projection position swc of the clock contact portion cpc toward the projection position swvs of the ground contact portion cpvs on the second virtual line C2. The clock contact portion cpc is located at the end of the array of contact portions cp in the -X direction, which is the negative direction of the second direction SD.The contact portions cp other than the clock contact portion cpc are arranged in the order of the data contact portion cpd, the power source contact portion cpvd, and the reset contact portion cpr from the -X direction, which is the negative direction of the second direction SD, to the +X direction, which is the positive direction of the second direction SD. The projection positions of the plurality of contact portions cp on the second virtual line C2 are arranged in the order of the clock contact portion cpc, the data contact portion cpd, the power source contact portion cpvd, the reset contact portion cpr, and the ground contact portion cpvs from the -X direction to the +X direction.

[0043] The clock contact portion cpc, the data contact portion cpd, the power source contact portion cpvd, the reset contact portion cpr, and the ground contact portion cpvs are arranged to form a plurality of rows. The plurality of rows are parallel to the second virtual line C2 and perpendicular to the first virtual line C1. In the present embodiment, the plurality of contact portions cp are arranged to form two rows perpendicular to the first direction FD, and directions of the two rows are parallel to the second direction SD. A direction in which the two rows are separated is the direction along the first virtual line C1 and the direction along the first direction FD in the present embodiment. The two rows are referred to as first row R1 and second row R2. The first row R1 is formed by the clock contact portion cpc, the power source contact portion cpvd, and the ground contact portion cpvs.The second row R2 is formed by the data contact portion cpd and the reset contact portion cpr. The data contact portion cpd and the reset contact portion cpr constituting the second row R2, and the clock contact portion cpc, the power source contact portion cpvd, and the ground contact portion cpvs constituting the first row R1 are configured to form a so-called staggered arrangement in which the data contact portion cpd and the reset contact portion cpr constituting the second row R2, and the clock contact portion cpc, the power source contact portion cpvd, and the ground contact portion cpvs constituting the first row R1 are arranged in a staggered manner such that the contact portions cp are not aligned in the direction of the first virtual line C1.Two contact portions cp on the base element 120db, which, when projected onto the second virtual line C2, are projected to be adjacent to each other, form part of different rows. The data contact portion cpd and the ground contact portion cpvs are arranged in different rows. At least one contact portion cp among the clock contact portion cpc, the power source contact portion cpvd, and the reset contact portion cpr is arranged to be projected onto the second virtual line C2 between the projection position swd of the data contact portion cpd and the projection position swvs of the ground contact portion cpvs.In the present embodiment, the reset contact portion cpr and the power source contact portion cpvd are arranged to be projected onto the second virtual line C2 between the projection position swd of the data contact portion cpd and the projection position swvs of the ground contact portion cpvs. In the present embodiment, the contact portions cp of the respective terminals 210 to 250 are arranged to form the first row R1 and the second row R2, but the present disclosure is not limited to this. For example, the contact portions cp of the respective terminals 210 to 250 may be arranged to form three rows or four rows. Rows may also be formed by one contact portion cp.

[0044] A distance between the ground contact portion cpvs and the reset contact portion cpr is set as distance Dan. A distance between the data contact portion cpd and the clock contact portion cpc is set as distance Dbn. A distance between the data contact portion cpd and the ground contact portion cpvs is set as distance Dcn. A distance between the data contact portion cpd and the reset contact portion cpr is set as distance Ddn. A distance between the data contact portion cpd and the power source contact portion cpvd is set as distance Den. In this case, the distance Dcn is longer than the distance Dbn. The distance Dcn is longer than the distance Den. The distance Dcn is longer than the distance Ddn. In the present disclosure, the distance Dbn is equal to the distance Den.A distance between the data contact portion cpd and the contact portion cp farthest from the data contact portion cpd among the plurality of contact portions cp other than the ground contact portion cpvs is the distance Dbn and the distance Den. In this case, the distance Dan is longer than the distance Dbn and the distance Den.

[0045] The clock contact portion cpc, the reset contact portion cpr, and the power source contact portion cpvd are arranged to be adjacent to the data contact portion cpd so as to partially surround the data contact portion cpd between the data contact portion cpd and the ground contact portion cpvs. By disposing the data contact portion cpd within a virtual circle Vcr that traverses the clock contact portion cpc, the reset contact portion cpr, and the power source contact portion cpvd, the clock contact portion cpc, the reset contact portion cpr, and the power source contact portion cpvd partially surround the data contact portion cpd.

[0046] A virtual line segment connecting the clock contact portion cpc and the data contact portion cpd is defined as the first line segment FL. A virtual line segment connecting the reset contact portion cpr and the data contact portion cpd is defined as the second line segment SL. A virtual line segment connecting the power source contact portion cpvd and the data contact portion cpd is defined as the third line segment TL. On the first line segment FL, there is no contact portion cp of any terminal 290 except the clock contact portion cpc and the data contact portion cpd. On the second line segment SL, there is no contact portion cp of any terminal 290 except the reset contact portion cpr and the data contact portion cpd. On the third line segment TL, there is no contact portion cp of any terminal 290 except the power source contact portion cpvd and the data contact portion cpd.

[0047] In the present embodiment, the five terminals 210 to 250 also have the same positional relationship as the above-described contact portions cpd, cpc, cpvd, cpr, and cpvs. That is, the data terminal 210, the clock terminal 220, the reset terminal 240, and the power source terminal 230 are arranged in the first region Rg1. The ground terminal 250 is arranged in the second region Rg2. No terminal 290 other than the clock terminal 220 and the data terminal 210 is arranged on the first line segment FL. No terminal 290 other than the reset terminal 240 and the data terminal 210 is arranged on the second line segment SL. No terminal 290 other than the power source terminal 230 and the data terminal 210 is arranged on the third line segment TL.

[0048] As described above, the data terminal 210 is used to detect whether or not the data terminal 210 is short-circuited with the clock terminal 220, the reset terminal 240, and the power source terminal 250, and whether or not the liquid storage container 100 is mounted in the printing device 20. At least a portion of the arrangement of the contact portions cp in the present disclosure is defined to enable such detections.

[0049] As in Fig. 6, the device 130 is configured to be provided on the base member 120bd. The device 130 includes a processing unit 136. In the present embodiment, the device 130 includes the processing unit 136 and a storage unit 138. The device 130 is molded (sealed) with resin 139. The device 130 may be mounted on the base member 120bd by another method.

[0050] The processing unit 136 is configured by, for example, a circuit. The processing unit 136 is coupled to the terminals 210 to 250 and controls signals and voltages input / output from / to the terminals 210 to 250. The processing unit 136 may be a circuit having an advanced arithmetic processing function, such as a CPU. Details of the processing unit 136 will be described later.

[0051] The storage unit 138 is configured by, for example, a non-volatile memory such as a flash memory. The storage unit 138 stores information related to the liquid storage container 100. The information related to the liquid storage container 100 includes, for example, the ink consumption, the ink color, the manufacturing date of the liquid storage container 100, and identification information of the liquid storage container 100. In the present embodiment, "1" and "4" are assigned as the identification information of the liquid storage containers 100A to 100D, respectively.

[0052] The configuration of the carriage 30 and a form in which the liquid receiving container 100 is mounted on the carriage 30 are described with reference to Fig. 7A to 7C. Fig. 7A is a diagram illustrating the form in which the liquid receiving container 100 is mounted on the carriage 30. Fig. Figure 7B is a first diagram illustrating the coupling mechanism 400. Fig. Figure 7C is a second diagram illustrating the coupling mechanism 400.

[0053] The carriage 30 includes the receiving portion 4 and the print head 5. The receiving portion 4 is disposed on the print head 5 and is configured to detachably mount a plurality of liquid receiving containers 100. A mounting chamber 65, in which the liquid receiving container 100 is mounted, is formed in the receiving portion 4. In the present embodiment, four mounting chambers 65 are provided corresponding to the number of liquid receiving containers 100A to 100D. The print head 5 includes a plurality of nozzles and a plurality of piezoelectric elements. The print head 5 ejects ink droplets from each nozzle in accordance with a voltage applied to each piezoelectric element to form dots on a printing medium PA. The receiving portion 4 is provided with the liquid introduction section 6, the sub-control board 500, and the coupling mechanism 400.The liquid introduction section 6 is arranged on the print head 5 in the normal use position of the printing system 1000. Ink is introduced into the print head 5 from the liquid supply port 104op of the liquid storage container 100 through the liquid introduction section 6. In the present embodiment, four liquid introduction sections 6 are provided corresponding to the number of liquid storage containers 100A to 100D. A plurality of sub-control board terminals 510, 520, 530, 540, and 550 and the sub-control unit 50 are mounted on the sub-control board 500. When referring to the plurality of sub-control board terminals 510, 520, 530, 540, and 550 without distinction, reference numeral 590 is used. The plurality of sub-control board terminals 590 are provided for each mounting chamber 65.The plurality of sub-control board terminals 590 are electrically coupled to the sub-control unit 50 via wiring of the sub-control board 500. The sub-control unit 50 is configured, for example, as a sled circuit and performs a control operation in cooperation with the main control unit 40 shown in FIG. Fig. 2, carries out a control with respect to the liquid receiving container 100.

[0054] The liquid storage container 100 is inserted in the mounting direction MD to be mounted on the receiving area 4 of the printing device 20. The liquid storage container 100 is pulled out in a direction opposite to the mounting direction MD to be removed from the receiving area 4. In this way, the liquid storage container 100 is detachably mounted in the printing device 20. When the liquid storage container 100 is mounted on the receiving area 4, the component 130 is electrically connected to the main control unit 40 via the terminals 290, the coupling mechanism 400, the sub-control board 500, and the bus 46 shown in Fig. 2 are shown.

[0055] As in Fig. 7B and Fig. 7C, the coupling mechanism 400 includes a terminal holding portion 405 and a plurality of contact portion forming members 403 held by the terminal holding portion 405. The coupling mechanism 400 is provided for each of the liquid storage containers 100A to 100D, that is, for each mounting chamber 65. As shown in Fig. 7B, the terminal holding portion 405 has a plurality of slots 301. The contact portion forming member 403 is conductive and elastic. The contact portion forming member 403 is fitted into the slot 301. In the present embodiment, five contact portion forming members 403 are provided for each coupling mechanism 400, the number of which is equal to the number of terminals 290. As shown in Fig. 7B, reference numerals "403A," "403B," "403C," "403D," and "403E" are used when referring to the five contact portion configuration elements 403 separately. In the present embodiment, nine slots 301 of the coupling mechanism 400 are provided and arranged at predetermined intervals. The number of slots 301 may instead be set to be equal to the number of contact portion configuration elements 403.

[0056] As in Fig. 7C, the contact portion forming member 403 is a member electrically coupled to the terminal 290 and the sub-control board terminal 590 of the sub-control board 500. A portion of the contact portion forming member 403 facing the mounting chamber 65 side forms the device-side terminal 490. The device-side terminal 490 has a contact portion dcp of the device-side terminal 490 to come into contact with the terminal 290. In the present embodiment, in the device-side terminal 490, a portion of the contact portion forming member 403 facing the mounting chamber 65 side and protruding closest toward the mounting chamber 65 comes into contact with the terminal 290 to form the contact portion dcp of the device-side terminal 490.The contact portion dcp of the device-side terminal 490 is not limited to the present embodiment. For example, the terminal 290 may contact a portion of the device-side terminal 490 other than the portion protruding closest to the mounting chamber 65. A portion of the contact portion forming member 403 protruding toward the sub-control board 500 forms a relay terminal 439 that contacts the sub-control board terminal 590.

[0057] When referring to the device-side terminals 490 separately, reference numerals "410", "420", "430", "440", and "450" are used. When referring to the relay terminals 439 separately, reference numerals "431", "432", "433", "434", and "435" are used. The device-side terminal 410 and the relay terminal 431 are formed on the contact portion forming member 403A. The device-side terminal 420 and the relay terminal 432 are formed on the contact portion forming member 403B. The device-side terminal 430 and the relay terminal 433 are formed on the contact portion forming member 403C. The device-side terminal 440 and the relay terminal 434 are formed on the contact portion forming member 403D. The device-side terminal 450 and the relay terminal 435 are formed on the contact portion forming member 403E.Device-side connector 410 is also referred to as the device-side data connector. Device-side connector 420 is also referred to as the device-side clock connector. Device-side connector 430 is also referred to as the device-side power source connector. Device-side connector 440 is also referred to as the device-side reset connector. Device-side connector 450 is also referred to as the device-side ground connector.

[0058] The contact portion forming member 403A electrically couples the data terminal 210 and the sub-control board terminal 510. The device-side terminal 410 contacts the data terminal 210, and the relay terminal 431 contacts the sub-control board terminal 510. The contact portion forming member 403B electrically couples the clock terminal 220 and the sub-control board terminal 520. The device-side terminal 420 contacts the clock terminal 220, and the relay terminal 432 contacts the sub-control board terminal 520. The contact portion forming member 403C electrically couples the power source terminal 230 and the sub-control board terminal 530. The device-side terminal 430 contacts the power source terminal 230, and the relay terminal 433 contacts the sub-control board terminal 530.The contact portion forming member 403D electrically couples the reset terminal 240 and the sub-control board terminal 540. The device-side terminal 440 contacts the reset terminal 240, and the relay terminal 434 contacts the sub-control board terminal 540. The contact portion forming member 403E electrically couples the ground terminal 250 and the sub-control board terminal 550. The device-side terminal 450 contacts the ground terminal 250, and the relay terminal 435 contacts the sub-control board terminal 550.

[0059] When the liquid storage container 100 is mounted on the storage area 4, the terminals 210, 220, 230, 240, and 250 contact the device-side terminals 410, 420, 430, 440, and 450 to be electrically coupled, respectively. The device-side terminals 410, 420, 430, 440, and 450 of the coupling mechanism 400 contact the sub-control board terminals 590 on the sub-control board 500 to be electrically coupled. The sub-control board terminals 590 of the sub-control board 500 are electrically coupled to the sub-control unit 50 via wiring. Thus, the terminals 210, 220, 230, 240 and 250 are electrically coupled to the sub-control unit 50.

[0060] The positional relationships between the contact portions cp in the liquid receiving container 100 and the positional relationships between each contact portion cp and other elements, for example, the positional relationship with the first virtual line C1, are analogously applied to the contact portions dcp of the device-side terminals 410 to 450. The arrangement of the contact portions cp in the liquid receiving container 100 has a mirror image relationship with the arrangement of the contact portions dcp of the device-side terminals 490. As in Fig. As shown in Figure 7B, the contact portion dcp of the device-side data terminal 410 is also referred to as the device-side data contact portion dcpd. The contact portion dcp of the device-side clock terminal 420 is also referred to as the device-side clock contact portion dcpc. The contact portion dcp of the device-side power source terminal 430 is also referred to as the device-side power source contact portion dcpvd. The contact portion dcp of the device-side reset terminal 440 is also referred to as the device-side reset contact portion dcpr. The contact portion dcp of the device-side ground terminal 450 is also referred to as the device-side ground contact portion dcpvs.

[0061] As in Fig. 7B, the coupling mechanism 400 is viewed from a top view. Two orthogonal straight lines are referred to as the first virtual line C1 and the second virtual line C2. In Fig. 7B, the first virtual line C1 is a direction along the first direction FD, and the second virtual line C2 is a direction along the second direction SD. In the present embodiment, two orthogonal straight lines extending substantially along the surface of the terminal holding portion 405 are referred to as the first virtual line C1 and the second virtual line C2.

[0062] It is imagined that the contact portions dcp of all device-side terminals of the coupling mechanism 400 are projected onto the second virtual line C2. In the present embodiment, it is imagined that the device-side data contact portion dcpd corresponding to the data terminal 210, the device-side clock contact portion dcpc corresponding to the clock terminal 220, the device-side power source contact portion dcpvd corresponding to the power source terminal 230, the device-side reset contact portion dcpr corresponding to the reset terminal 240, and the device-side ground contact portion dcpvs corresponding to the ground terminal 250 are projected onto the second virtual line C2.Regarding projection positions of the contact portions dcp of the device-side terminals onto the second virtual line C2, the projection position of the device-side data contact portion dcpd is set as swd, the projection position of the device-side clock contact portion dcpc is set as swc, the projection position of the device-side power source contact portion dcpvd is set as swvd, the projection position of the device-side reset contact portion dcpr is set as swr, and the projection position of the device-side ground contact portion dcpvs is set as swvs. The projection positions swd, swc, swvd, swr, and swvs indicate orthogonal projections obtained by perpendicularly projecting the contact portions dcp of the respective device-side terminals onto the second virtual line C2.In this way, the contact portions dcp of all device-side terminals are projected at different positions on the second virtual line C2. The device-side data contact portion dcpd, the device-side clock contact portion dcpc, the device-side power source contact portion dcpvd, the device-side reset contact portion dcpr, and the device-side ground contact portion dcpvs are projected at different positions.The device-side data contact portion dcpd, the device-side clock contact portion dcpc, the device-side power source contact portion dcpvd, the device-side reset contact portion dcpr, and the device-side ground contact portion dcpvs are arranged such that virtual lines in the direction of the first virtual line C1 passing through the contact portions dcp of the respective device-side terminals are parallel to each other, rather than intersecting or crossing each other. The first virtual line C1 passes through the midpoint MD between the two farthest projection positions among the projection positions of the contact portions dcp of all the device-side terminals onto the second virtual line C2.In the present embodiment, the first virtual line C1 passes through the midpoint MP between the projection position swvs of the device-side ground contact portion dcpvs onto the second virtual line C2 and the projection position of the contact portion located at the farthest position from the projection position swvs of the device-side ground contact portion dcpvs among the projection positions swd, swc, swvd, and swr of the device-side data contact portion dcpd, the device-side clock contact portion dcpc, the device-side power source contact portion dcpvd, and the device-side reset contact portion dcpr.In the present embodiment, the first virtual line C1 passes through the midpoint between the projection position swc of the device-side clock contact portion dcpc onto the second virtual line C2 and the projection position swvs of the device-side ground contact portion dcpvs.

[0063] With respect to the first virtual line C1, one area of the coupling mechanism 400 on one side of the line is set to a first area Rg1, and the other area of the coupling mechanism 400 on the other side of the line is set to a second area Rg2. In this case, the device-side terminals 410, 420, 430, and 440 are arranged in the first area Rg1, and the device-side terminal 450 is arranged in the second area Rg2. In the present embodiment, the first area Rg1 is an area on the -X direction side (the negative direction of the second direction SD) of the first virtual line C1, and the second area Rg2 is an area on the +X direction side (the positive direction of the second direction SD) of the first virtual line C1.The first region Rg1 is one of two regions of the coupling mechanism 400 sandwiching the first virtual line C1, and the second region Rg2 is the other region of the coupling mechanism 400 sandwiching the first virtual line C1. In other words, the first region Rg1 and the second region Rg2 are located on both sides of the first virtual line C1. Among the contact portions dcp of all the device-side terminals, some contact portions dcpa are arranged in the first region Rg1, and the remaining contact portions dcpb are arranged in the second region Rg2. The some contact portions dcpa arranged in the first region Rg1 include the device-side data contact portion dcpd, the device-side clock contact portion dcpc, the device-side power source contact portion dcpv, and the device-side reset contact portion dcpr.The remaining contact portions dcpb arranged in the second region Rg2 include the device-side ground contact portion dcpvs. The device-side clock contact portion dcpc, the device-side data contact portion dcpd, the device-side reset contact portion dcpr, and the device-side power source contact portion dcpvd are arranged on one side of the first virtual line C1, and the device-side ground contact portion dcpvs is arranged on the other side. The few contact portions dcpa and the remaining contact portions dcpb are arranged asymmetrically with respect to the first virtual line C1. No contact portion dcp of a device-side terminal is provided on the first virtual line C1.

[0064] As in Fig. 7B, the device-side ground contact portion dcpvs is located at the end of the array of contact portions dcp of the plurality of device-side terminals in the +X direction, which is the positive direction of the second direction SD. The contact portion dcp of any device-side terminal among the device-side clock contact portion dcpc, the device-side data contact portion dcpd, the device-side power source contact portion dcpvd, and the device-side reset contact portion dcpr is located at the end of the array of contact portions dcp of the plurality of device-side terminals in the -X direction, which is the negative direction of the second direction SD. The contact portion dcp of such any device-side terminal is located at an outermost position in the second direction SD among the contact portions dcp of the plurality of device-side terminals.The device-side ground contact portion dcpvs is also located at an outermost position in the second direction SD among the contact portions dcp of the plurality of device-side terminals on the other side of the array of contact portions. A gap between the contact portion dcp projected at the furthest position from the projection position swvs when projected onto the second virtual line C2 among the contact portions dcp of the device-side terminals in the first region Rg1 and the device-side ground contact portion dcpvs provided in the second region Rg2 in the direction along the second virtual line C2 is set as Wa.

[0065] The device-side data contact portion dcpd, the device-side clock contact portion dcpc, the device-side power source contact portion dcpd, and the device-side reset contact portion dcpr are preferably located far from the device-side ground terminal contact portion dcpvs. For example, a gap between the contact portion dcp projected at the position closest to the projection position swvs when projected onto the second virtual line C2 among the contact portions dcp of the device-side terminals 430 in the first region Rg1 and the device-side ground contact portion dcpvs provided in the second region Rg2 in the direction along the second virtual line C2 is equal to or larger than Wa / 2.For example, no contact portion dcp of another device-side terminal is provided between the contact portion dcp of the device-side terminal projected at the position closest to the projection position swvs when projected onto the second virtual line C2 among the contact portions dcp of the device-side terminals in the first area Rg1 and the device-side ground contact portion dcpvs provided in the second area Rg2.In the present embodiment, no contact portion dcp of another device-side terminal is provided in a region between the device-side reset contact portion dcpr provided at the end on the +X direction side (the positive direction of the second direction SD) of the contact portion array in the first region Rg1 and the device-side ground contact portion dcpvs provided in the second region Rg2. For example, none of the contact portions dcp of the device-side terminals 410 to 440 and the device-side ground contact portion dcpvs are provided on the first virtual line C1.

[0066] The contact portion dcp of at least one device-side terminal among the device-side clock contact portion dcpc, the device-side power source contact portion dcpvd, and the device-side reset contact portion dcpr is arranged to be projected onto the second virtual line C2 between the projection position swd of the device-side data contact portion dcpd and the projection position swvs of the device-side ground contact portion dcpvs.Preferably, the contact portions dcp of any two or more device-side terminals are arranged among the device-side clock contact portion dcpc, the device-side power source contact portion dcpvd, and the device-side reset contact portion dcpr to be projected onto the second virtual line C2 between the projection position swd of the device-side data contact portion dcpd and the projection position swvs of the device-side ground contact portion dcpvs.

[0067] The device-side data terminal dcpd is arranged to be projected onto the second virtual line C2 between the projection positions of the contact portions dcp of any two device-side terminals among the device-side clock contact portion dcpc, the device-side power source contact portion dcpvd, and the device-side reset contact portion dcpr. The device-side data contact portion dcpd is not projected to a position at the end of the arrangement of the projection positions on the second virtual line C2. In the present embodiment, the device-side data contact portion dcpd is arranged to be projected onto the second virtual line C2 between the projection positions of the device-side clock contact portion dcpc and the device-side power source contact portion dcpvd.

[0068] One or both of the device-side data contact portion dcpd and the device-side reset contact portion dcpr are arranged to be projected onto the second virtual line C2 between the projection position swvd of the device-side power source contact portion dcpvd and the projection position swc of the device-side clock contact portion dcpc. Furthermore, the device-side reset contact portion dcpr is arranged so that its projection position swr onto the second virtual line C2 is adjacent to or adjacent to the projection position swvd of the device-side power source contact portion dcpvd.In the present embodiment, the device-side data contact portion dcpd is arranged to be projected onto the second virtual line C2 between the projection position swvd of the device-side power source contact portion dcpvd and the projection position swc of the device-side clock contact portion dcpc.

[0069] The device-side power source contact portion dcpr is arranged so that its projection position swvd onto the second virtual line C2 is adjacent to or next to the projection position swd of the device-side data contact portion dcpd.

[0070] In the present embodiment, the device-side clock contact portion dcpc is arranged to be projected onto the second virtual line C2 at the farthest position from the projection position swvs of the device-side ground contact portion dcpvs. The device-side data contact portion dcpd, the device-side power source contact portion dcpvd, and the device-side reset contact portion dcpr are arranged to be projected onto the second virtual line C2 in this order in a direction from the projection position swc of the device-side clock contact portion dcpc toward the projection position swvs of the device-side ground contact portion dcpvs on the second virtual line C2.The device-side clock contact portion dcpc is located at the end of the contact portion arrangement on the second virtual line C2 in the -X direction (the negative direction of the second direction SD). The contact portions dcp of the device-side terminals other than the device-side clock contact portion dcpc are arranged in an order of the device-side data contact portion dcpd, the device-side power source contact portion dcpvd, and the device-side reset contact portion dcpr from the -X direction (the negative direction of the second direction SD) to the +X direction (the positive direction).The projection positions of the contact portions dcp of the plurality of device-side terminals onto the second virtual line C2 are arranged in an order of the device-side clock contact portion dcpc, the device-side data contact portion dcpd, the device-side power source contact portion dcpvd, and the device-side reset contact portion dcpr and the device-side ground contact portion dcpvs from the -X direction to the +X direction.

[0071] The device-side clock contact portion dcpc, the device-side data contact portion dcpd, the device-side power source contact portion dcpvd, the device-side reset contact portion dcpr, and the device-side ground contact portion dcpvs are arranged to form a plurality of rows. The plurality of rows are parallel to the second virtual line C2 and perpendicular to the first virtual line C1. In the present embodiment, the contact portions dcp of the plurality of device-side terminals are arranged to form two rows perpendicular to the first direction FD, and directions of the two rows are parallel to the second direction SD. A direction in which the two rows are separated is the direction along the first virtual line C1 and the direction along the first direction FD in the present embodiment. The two rows are referred to as the first row R1 and the second row R2.The first row R1 is formed by the device-side clock contact section dcpc, the device-side power source contact section dcpvd, and the device-side ground contact section dcpvs. The second row R2 is formed by the device-side data contact section dcpd and the device-side reset contact section dcpr.The device-side data contact portion dcpd and the device-side reset contact portion dcpr constituting the second row R2, and the device-side clock contact portion dcpc, the device-side power source contact portion dcpvd, and the device-side ground contact portion dcpvs constituting the first row R1 are configured to form a so-called staggered arrangement in which the device-side data contact portion dcpd and the device-side reset contact portion dcpr constituting the second row R2, the device-side clock contact portion dcpc, the device-side power source contact portion dcpvd, and the device-side ground contact portion dcpvs constituting the first row R1 are arranged in a staggered manner such that the contact portions dcp are not aligned in the direction of the first virtual line C1.The contact portions dcp of two device-side terminals whose projection positions onto the second virtual line C2 are adjacent form parts of different rows. The device-side data contact portion dcpd and the device-side ground contact portion dcpvs are arranged in different rows. The contact portion dcp of any device-side terminal among the device-side clock contact portion dcpc, the device-side power source contact portion dcpvd, and the device-side reset contact portion dcpr is arranged to be projected onto the second virtual line C2 between the projection position swd of the device-side data contact portion dcpd and the projection position swvs of the device-side ground contact portion dcpvs.In the present embodiment, the device-side reset contact portion dcpr and the device-side power source contact portion dcpvd are arranged to be projected onto the second virtual line C2 between the projection position swd of the device-side data contact portion dcpd and the projection position swvs of the device-side ground contact portion dcpvs. In the present embodiment, the contact portions dcp of the respective device-side terminals 410 to 450 are arranged to form the first row R1 and the second row R2, but the present disclosure is not limited to this. For example, the contact portions dcp of the respective device-side terminals 410 to 450 may be arranged to form rows, such as three rows or four rows. One row may also be formed by the contact portion dcp of one device-side terminal.

[0072] A distance between the device-side ground contact portion dcpvs and the device-side reset contact portion dcpr is set as distance DAn. A distance between the device-side data contact portion dcpd and the device-side clock contact portion dcpc is set as distance DBn. A distance between the device-side data contact portion dcpd and the device-side ground contact portion dcpvs is set as distance DCn. A distance between the device-side data contact portion dcpd and the device-side reset contact portion dcpr is set as distance DDn. A distance between the device-side data contact portion dcpd and the device-side power source contact portion dcpvd is set as distance DEn. In this case, the distance DCn is longer than the distance DBn. The distance DCn is longer than the distance DEn. The distance DCn is longer than the distance DDn.In the present embodiment, the distance DBn is equal to the distance DEn. A distance between the device-side data contact portion dcpd and the contact portion dcp of the device-side terminal farthest from the device-side data contact portion dcpd among the contact portions dcp of the plurality of device-side terminals other than the device-side ground contact portion dcpvs is the distance DBn and the distance DEn. In this case, the distance DAn is longer than the distance DBn and the distance DEn.

[0073] A virtual line segment connecting the device-side clock contact portion dcpc and the device-side data contact portion dcpd is defined as the first line segment fL. A virtual line segment connecting the device-side reset contact portion dcpr and the device-side data contact portion dcpd is defined as the second line segment sL. A virtual line segment connecting the device-side power source contact portion dcpvd and the device-side data contact portion dcpd is defined as the third line segment tL. On the first line segment fL, there is no contact portion dcp of any device-side terminal other than the device-side clock contact portion dcpc and the device-side data contact portion dcpd.On the second line segment sL, there is no contact portion dcp of any device-side terminal other than the device-side reset contact portion dcpr and the device-side data contact portion dcpd. On the third line segment tL, there is no contact portion dcp of any device-side terminal other than the device-side power source contact portion dcpvd and the device-side data contact portion dcpd.

[0074] The data terminal 210 may also be referred to as the first terminal. The clock terminal 220 may also be referred to as the second terminal, which is included in other terminals. The reset terminal 240 may also be referred to as the third terminal, which is included in other terminals. The power source terminal 230 may also be referred to as the fourth terminal, which is included in other terminals. The ground terminal 250 may also be referred to as the fifth terminal, which is included in the other terminals. The data contact section cpd may also be referred to as the first contact section. The clock contact section cpc may also be referred to as the second contact section. The reset contact section cpr may also be referred to as the third contact section. The power source contact section cpvd may also be referred to as the fourth contact section. The ground contact section cpvs may also be referred to as the fifth contact section.The terminals other than the first terminal may also be referred to as another terminal group. The terminals provided on the circuit board 120 and the liquid storage tank 100, such as the terminals 210 to 250, may also be referred to as board-side terminals or tank-side terminals.

[0075] The device-side terminal 410 may also be referred to as a first device-side terminal. The device-side terminal 420 may also be referred to as a second device-side terminal. The device-side terminal 430 may also be referred to as a third device-side terminal. The device-side terminal 440 may also be referred to as a fourth device-side terminal. The device-side terminal 450 may also be referred to as a fifth device-side terminal. The projection position of the first device-side terminal 410 onto the second virtual line C2 may be referred to as a first projection position. The projection position of the second device-side terminal 420 may be referred to as a second projection position. The projection position of the third device-side terminal 430 may be referred to as a third projection position.The projection position of the fourth device-side terminal 440 may be referred to as the fourth projection position. The projection position of the fifth device-side terminal 450 may be referred to as the fifth projection position. A2. Description of various states of the printing system:

[0076] In the present disclosure, an "assembly completed state" refers to a state in which the liquid storage container 100 is assembled in the printing device 20 and no short circuit occurs between the terminals 290. As described above, the phrase "the liquid storage container 100 is assembled in the printing device 20" means that the liquid storage container 100 is physically attached to the printing device 20, and the contact portion cp of the terminal 290 is electrically coupled to the device-side terminal 490. The assembly completed state is a state in which communication is possible between the printing device 20 and the device 130.A "non-mounting completed state" refers to a state where the liquid receptacle 100 is not mounted on the mounting portion 4 of the printing device 20, or a state where the liquid receptacle 100 is mounted on the mounting portion 4 of the printing device 20, but a weak contact occurs between the device-side terminal 490 and the contact portion cp. A "short-circuit state" refers to a state where the liquid receptacle 100 is mounted on the mounting portion 4 of the printing device 20, but a short circuit has occurred between the terminals 290. For example, a case where the data terminal 210 is short-circuited with the clock terminal 220 means that "the data terminal 210 and the clock terminal 220 are in a short-circuit state."

[0077] A "coupling state" is either (i) the assembly-completed state, (ii) the assembly-incomplete state, or (iii) the short-circuit state. "Determining the coupling state" means determining which of the above-described (i) to (iii) states the liquid receiving container 100 is in. A3. Electrical Configuration and Software ConfigurationA3-1. Electrical Configuration

[0078] Fig. Figure 8 is a schematic diagram illustrating the electrical configuration of the printing system 1000. In Fig. 8, "A", "B", "C", and "D" are added to the end when distinguishing between the circuit boards 120 and the components 130 of the four liquid receptacles 100A, 100B, 100C, and 100D. The components 130A to 130D store identification information of the respective liquid receptacles 100A to 100D. For example, the components 130A to 130D store information regarding liquids stored in the respective liquid receptacles 100A to 100D. The identification information is from ID = 1 to 4 in Fig. 8. The main control unit 40 and the sub-control unit 50 form a control unit 39 that controls the operation of the printing device 20.

[0079] The sub-control unit 50 is electrically coupled to the liquid storage tanks 100A to 100D via a plurality of lines. The plurality of lines include a reset line LRST, a clock line LSCK, a power source line LVDD, a data line LSDA, and a ground line LVSS. The reset line LRST, the clock line LSCK, the power source line LVDD, and the data line LSDA are provided independently for each of the liquid storage tanks 100A to 100D. The ground line LVSS is provided commonly in the liquid storage tanks 100A to 100D. When the lines electrically coupled to the respective liquid storage tanks 100A to 100D are to be distinguished with respect to the reset line LRST, the clock line LSCK, the power source line LVDD, and the data line LSDA, "1" to "4" are added to the end.“1” to “4” correspond to the individual identification information “1” to “4” of the liquid storage containers 100A to 100D.

[0080] In the slave control unit 50, a terminal that outputs the reset signal RST is designated as a host terminal HRST. A terminal that outputs the clock signal SCK is designated as a host terminal HSCK. A terminal that outputs a power source voltage VDD is designated as a host terminal HVDD. A terminal that outputs and inputs the data signal SDA is designated as a host terminal HSDA. A host terminal HVSS is grounded. When the terminals coupled to the respective liquid receiving containers 100A to 100D are to be distinguished with respect to the host terminals HSDA, HRST, HSCK, and HVDD, "1" to "4" are added to the end. "1" to "4" correspond to each of the identification information "1" to "4" of the liquid receiving containers 100A to 100D. The slave control unit 50 is electrically coupled to the main control unit 40 via the bus 46.The slave control unit 50 transmits various signals and voltages individually to the components 130A to 130D of the liquid receiving containers 100A to 100D via a coupling bus 45 comprising the lines LRST, LSCK, LVDD, LSDA and LVSS.

[0081] The reset line LRST is a conductive line used when the control unit 39 transmits the reset signal RST to the device 130. The reset signal RST is a signal for establishing a device state in which reception of a request signal RS, which will be described later, is possible. When the reset signal RST transmitted from the control unit 39 to the device 130 changes from a high level to a low level, a portion of the processing unit 136 that receives the request signal RS enters an initial state. When the reset signal RST changes from the low level to the high level, a new request signal RS is made receptive. The clock line LSCK is a conductive line used when the control unit 39 transmits the clock signal SCK to the device 130.The clock signal SCK is a signal in which a low level and a high level alternately repeat at a predetermined cycle. The data line LSDA is a conductive line used to transmit and receive the data signal SDA between the control unit 39 and the device 103. The data signal SDA is transmitted and received in synchronization with the clock signal SCK to synchronize between the control unit 39 and the device 130. For example, the data signal SDA is transmitted and received using the rising or falling edge of the clock signal SCK as a trigger. The reset signal RST, the data signal SDA, and the clock signal SCK assume either a high level or a low level. In the following description, the high level is also represented by reference symbol "H" or "1", and the low level is also represented by reference symbol "L" or "0".The host terminal HSDA, which is coupled to the data line LSDA, is grounded in the slave control unit 50 via a pull-down resistor. Thus, a drive state of the host terminal HSDA in the slave control unit 50 is maintained at a low level when the data signal SDA is not being transmitted / received between the slave control unit 50 and the device 130.

[0082] The ground line LVSS is a conductive line for defining a ground potential VSS of the device 130. The ground potential VSS is set to 0 V, for example. The power source line LVDD is a conductive line used when the control unit 39 supplies the power source voltage VDD to the device 130 as an operating voltage. The power source voltage VDD is a voltage higher than a predetermined threshold. In the present embodiment, for example, with respect to the ground potential VSS, a potential of approximately 3.3 V is used as the power source voltage VDD. The potential used for the power source voltage VDD may have a different value depending on the type of the device 130.

[0083] Fig. 9 is a diagram illustrating the functional configuration of the printing device 20 together with a liquid storage container 100. The printing device 20 includes a display panel 495, a power source 441, the main control unit 40, and the sub-control unit 50. The display panel 495 is used to notify a user of an operating status of the printing device 20, an error in the liquid storage containers 100A to 100D, the ink consumption stored in the device 130, the color of the ink, the manufacturing date, and the like.For example, when the liquid storage container 100 is in the assembly-completed state, an indication informing the user that the liquid storage container 100 is assembled, an indication indicating that the printing system 1000 is in a printable state, and an indication of the remaining amount of ink stored in the liquid storage container 100 are displayed on the display panel 495. The display panel 495 is provided, for example, in the operation section 70 in FIG. Fig. 2. The power source 441 is a general power source used in a logic circuit and has a rated voltage of 3.3 V. The voltage of the power source 441 is supplied to the sub-control unit 50 and is also supplied to other circuits as needed.

[0084] The main control unit 40 includes a CPU 415 and a first device-side storage unit 416. The CPU 415 controls the operation of the printing device 20 by executing various programs stored in the first device-side storage unit 416. For example, the main control unit 40 controls the operation of the display panel 495 and controls the operation of the sub-control unit 50. The CPU 415 functions as a determination unit 411 by executing various programs stored in the first device-side storage unit 416. The determination unit 411 includes a mounting determination unit 412 and a short-circuit determination unit 414. The mounting determination unit 412 determines whether the liquid storage container 100 is mounted or not. The short-circuit determination unit 414 determines whether a short circuit has occurred between the terminals 290 or not.

[0085] The slave control unit 50 includes a switching unit 51 and a second device-side storage unit 516. The switching unit 51 includes a register (not shown) and an analog switch (not shown) coupled to the register. When the CPU 415 writes "1" to the register, the analog switch enters a conductive state. Thus, it is possible to switch the state to a state in which the CPU 415 and the circuit board 120 are coupled to each other. When the CPU 415 writes "0" to the register, the analog switch enters a non-conductive state. Thus, it is possible to switch the state to a state in which the CPU 415 and the circuit board 120 are not coupled to each other.

[0086] The second device-side storage unit 516 stores determination information. The determination information is information used in the coupling state determination processing, which will be described later. The determination information is information in which the voltage output from the data terminal 210 in response to the request signal RS, which will be described later, is set to have a detected value. The determination unit 411 reads the determination information from the second device-side storage unit 516 when performing the coupling state determination processing.

[0087] The slave control unit 50 transmits the request signal RS to the devices 130A to 130D of the liquid storage containers 100A to 100D via the coupling bus 45. The request signal RS is output from the host terminal HSDA of the slave control unit 50 and input to the data terminal 210 of each of the liquid storage containers 100A to 100D. The request signal RS includes a command for enabling the identification of the liquid storage containers 100A to 100D as a response target to the request signal RS for each of the devices 130A to 130D. Using the voltage output from the data terminal 210 of each of the liquid storage containers 100A to 100D, the determination unit 411 performs the coupling state determination processing of the liquid storage containers 100A to 100D in response to the request signal RS. Details of the request signal RS will be described later.

[0088] The processing unit 136 of the device 130 communicates with the printing device 20 via the data line LSDA in synchronization with the clock signal SCK input from the printing device 20 to the clock terminal 220. For example, a signal is transmitted / received using the rising / falling edge of the clock signal SCK as a trigger. The processing unit 136 controls signals and voltages input to / output from the terminals 210 to 250. For example, response signals FS and SS are input to the data terminal 210 and then output via the data line LSDA in response to the request signal RS. The processing unit 136 includes a three-state buffer. The three-state buffer has three drive states: a low-voltage output state, a high-voltage output state, and a high-impedance state.The tri-state buffer is coupled to data terminal 210. Thus, in the present disclosure, "low," "high," and "high impedance" are used as terms indicating the drive state of data terminal 210. Memory unit 138 includes a memory cell array in which a plurality of memory cells are arranged in a two-dimensional matrix. Processing unit 136 and memory unit 138 are coupled by a bit line and a word line. Processing unit 136 is electrically coupled to each of terminals 210 to 250 and memory unit 138. A3-2. Overview of software configuration (coupling state determination processing):

[0089] The coupling state determination processing performed by the printing system 1000 will be described with reference to Fig. 10A and Fig. 10B. Fig. 10A is a flowchart illustrating a process performed by the printing apparatus 20 in the coupling state determination processing for a component 130. Fig. 10B is a flowchart illustrating a process performed by the device 130 in the coupling state determination processing.

[0090] As in Fig. 10A, the printing device 20 performs processes as follows in the coupling state determination processing. In step S301, the sub-control unit 50 transmits a request signal RS to the device 30 of the liquid accommodating container 100. Then, the sub-control unit 50 detects a voltage output from the data terminal 210 of the liquid accommodating container 100. Specifically, in step S302, the sub-control unit 50 detects the voltage output from the data terminal 210 of the liquid accommodating container 100 at a predetermined first time point t1. In step S303, the sub-control unit 50 detects the voltage output from the data terminal 210 of the liquid accommodating container 100 at a predetermined second time point t2.In step S304, the sub-control unit 50 detects the voltage output from the data terminal 210 of the liquid storage container 100 at a predetermined third time t3. The times from the first time t1 to the third time t3 are different times. The voltages detected by the sub-control unit 50 at each of the first time t1 to the third time t3 are stored as detected values in the second device-side storage unit 516 of the sub-control unit 50. In step S305, the determination unit 411 of the main control unit 40 reads the detected value from the second device-side storage unit 516. In step S306, the main control unit 40 determines the coupling state based on the detected values obtained by the detection of the sub-control unit 50 at the first time t1 to the third time t3.

[0091] As in Fig. 10B, in the coupling state determination processing, the device 130 performs processes as follows. In step S101, the processing unit 136 of the device 130 determines whether or not the request signal RS from the printing device 20 is input to the data port 210. Upon determining that the request signal RS is input to the data port 210, the processing unit 136 of the device 130 determines in step S102 whether or not a response to the printing device 20 has been requested. Upon determining whether or not a response to the printing device 20 has been requested, the processing unit 136 of the device 130 outputs a first response signal FS to the data port 210 in step S103. After outputting the first response signal FS, the processing unit 136 of the component 130 outputs a second response signal SS to the data terminal 210 in step S104.The first response signal FS and the second response signal SS are output from the data terminal 210 to the printing device 20. If it is determined in step S102 that the response to the printing device 20 is not requested, the processing unit 136 of the device 130 terminates the process.

[0092] The overview and the output times of the request signal RS, the first response signal FS and the second response signal SS are given with reference to Fig. 11A to 11D. Fig. 11A is a timing chart of when the printing device 20 outputs the request signal RS to the data terminal 210. Fig. 11B is a timing diagram of when device 130 outputs the first response signal FS and the second response signal SS to data terminal 210. Fig. Figure 11C is a diagram showing details of the first response signal FS. Figure 11D is a diagram showing details of the second response signal SS. The timing diagram shown in Fig. 11B, reference is made to the timing diagram shown in Fig. 11A is shown below. In the Fig. In FIGS. 11A to 11D, "H" indicates that the signal is at a high level, and "L" indicates that the signal is at a low level. The dotted line indicates that the drive state of the terminal 290 is high resistance and indicates that no signal is output from the terminal 290. The host terminal HSDA of the slave control unit 50 is grounded via the pull-down resistor. Thus, the control unit 39 is unable to distinguish between a case where the drive state of the terminal 290 is high resistance and no signal is output from the terminal 290 and a case where a low voltage is output from the terminal 290. For example, if a pull-up resistor coupling the data terminal 210 and the power source terminal 230 is used, it is recognized that the drive state of the data terminal 290 is high resistance. VDD, RST, SCK and SDA1 to SDA4 , which are in Fig. 11A and similar references denote signals transmitted to or received through the corresponding terminal 290 or voltages supplied from the corresponding lines LVDD, LRST, LSCK, and LSDA1 to LSDA4. Cycles D1 to D9 in a command period CMT, a first response period RT1, and a second response period RT2 constitute a unit period in which the low level and the high level of the clock signal SCK are repeated in each period. The clock signal SCK in this unit period is referred to as a "cycle."

[0093] The Fig. The timing charts shown in FIGS. 11A to 11B are executed using a predetermined timing as a trigger. The predetermined timing is, for example, a timing at which the printing device 20 is activated and the power source 441 turns ON, a timing at which the liquid storage container 100 is replaced, a timing at which a user instruction is received, and a timing at which the printing device 20 is not performing printing and the carriage 30 is located at a home position. An example of performing triggering by the timing at which the power source 441 turns ON will be described below.

[0094] As in Fig. 11A, the control unit 39 first sets the power source voltage VDD to a high level. The control unit 39 changes the reset signal RST from a low level to a high level after a predetermined time has elapsed after the power source voltage VDD becomes high. The control unit 39 transmits the clock signal SCK to the device 130 after changing the reset signal RST to the high level. The control unit 39 transmits the request signal RS to the device 130 after changing the reset signal RST to the high level. The request signal RS includes a first execution command BCC1, first identification data DB1, first parity data P1, a second execution command BCC2, second identification data DB2, and second parity data P2.

[0095] The request signal RS will be described in detail. After changing the reset signal RST to the high level, the control unit 39 transmits the first execution command BCC1 to the devices 130A to 130D in the D1 cycle and the D2 cycle of the CMT command period. The first execution command BCC1 is 2-bit data and is a command indicating that the main control unit 40 executes the coupling state determination processing. The control unit 39 generates the first execution command BCC1 by setting the voltage to the high level in the D1 cycle and the voltage to the low level in the D2 cycle.

[0096] The control unit 39 transmits the first identification data DB1 to the components 130A to 130D in cycles D3 to D8 following the first execution command BCC1. The first identification data DB1 is 6-bit data and is used to identify the liquid storage containers 100A to 100D that require a response. In the first identification data DB1, corresponding bits are assigned to each of the components 130A to 130D. Cycle D3, which is the first bit, and cycle D4, which is the second bit, can be used when six liquid storage containers 100 are mounted in the printing apparatus 20 in another embodiment.In the first identification data DB1, cycle D5, which is the third bit, corresponds to the liquid storage container 100D, cycle D6, which is the fourth bit, corresponds to the liquid storage container 100C, cycle D7, which is the fifth bit, corresponds to the liquid storage container 100B, and cycle D8, which is the sixth bit, corresponds to the liquid storage container 100A. The first identification data DB1 transmitted to the device 130A of the liquid storage container 100A is at a high level in cycle D8, which is the sixth bit, and the remaining bits are at a low level. The first identification data DB1 transmitted to the device 130B of the liquid storage container 100B is at a high level in cycle D7, which is the fifth bit, and the remaining bits are at a low level.The first identification data DB1 transmitted to the device 130C of the liquid storage container 100C is at a high level in cycle D6, which is the fourth bit, and the remaining bits are at a low level. The first identification data DB1 transmitted to the device 130D of the liquid storage container 100D is at a high level in cycle D5, which is the third bit, and the remaining bits are at a low level. The request signal RS has a different waveform for each of the devices 130A to 130D of the liquid storage containers 100A to 100D.

[0097] Following the first identification data DB1, the control unit 39 transmits the first parity data P1 to the devices 130A to 130D in cycle D9. The first parity data P1 is 1-bit data. In the present embodiment, the first parity data P1 is odd parity.

[0098] After the first parity data P1, the control unit 39 transmits the second execution command BCC2 of 2 bits to the devices 130A to 130D. The second execution command BCC2 is the same data as the first execution command BCC1, without being reversed. After the second execution command BCC2, the control unit 39 transmits the second identification data DB2 of 6 bits to the devices 130A to 130D. The second identification data DB2 is the same data as the first identification data DB1, without being reversed. After the second identification data DB2, the control unit 39 transmits the second parity data P2 of 1 bit to the devices 130A to 130D.

[0099] The first execution command BCC1, the first identification data DB1, and the first parity data P1 are collectively referred to as a first command. The second execution command BCC2, the second identification data DB2, and the second parity data P2 are collectively referred to as a second command. A period in which the control unit 39 transmits the first command to the device 130 in the command period CMT is also referred to as a first command period. A period in which the control unit 39 transmits the second command to the device 130 in the command period CMT is also referred to as a second command period. The first command and the second command are not reversed with respect to each other and are the same data. In other embodiments, the first and second commands may be reversed with respect to each other.

[0100] As described above, in device 130, the power source voltage VDD from the printing device 20 is first input to the power source terminal 230. A high reset voltage is input from the printing device 20 to the reset terminal 240 in such a way that, in device 130, the power source voltage VDD from the printing device 20 is input to the power source terminal 230, and the reset signal RST then changes from a low reset voltage to the high reset voltage. In device 130, the clock signal SCK from the printing device 20 is input to the clock terminal 220 after the high reset voltage from the printing device 20 is input to the reset terminal 240. In device 130, the request signal RS from the printing device 20 is input to the data terminal 210 after the high reset voltage from the printing device 20 is input to the reset terminal 240.Here, the power source voltage VDD is a high voltage higher than a threshold value. The reset signal RST is a signal that includes a low reset voltage as a low level and a high reset voltage as a high level higher than the low reset voltage. The low reset voltage is a voltage lower than a reference reset voltage, which is the threshold value. The high reset voltage is a voltage higher than the reference reset voltage, which is the threshold value. The reference reset voltage is a voltage that acts as a reference for determining a high level and a low level. The clock signal SCK is a signal in which a low clock voltage as a low level and a high clock voltage as a high level higher than the low clock voltage are alternately repeated in a predetermined cycle.The low clock voltage is a voltage lower than a reference clock voltage, which serves as a threshold. The high clock voltage is a voltage higher than the reference clock voltage, which serves as a threshold. The reference clock voltage is a voltage that serves as a reference for determining a high level and a low level. Each threshold is set, for example, between the potential of current source 441 and the ground potential.

[0101] As in Fig. As shown in Fig. 11B, the device 130, which has been requested to respond to the printing device 20, outputs the first response signal FS and the second response signal SS to the data terminal 210 after the request signal RS is transmitted from the control unit 39 to the device 130. The first response signal FS and the second response signal SS are signals used when the printing device 20 determines that the data terminal 210 is not short-circuited to the clock terminal 220, the power source terminal 230, and the reset terminal 240, and that the liquid storage container 100 is mounted in the printing device 20. The request signal RS has a waveform for individually designating the liquid storage containers 100A to 100D in the first identification data DB1.When the components 130A to 130D receive the request signal RS designating the corresponding component from the printing device 20, they output the first response signal FS and the second response signal SS to the data terminal 210. The first response signal FS is output in the first response period RT1. The second response signal SS is output in the second response period RT2, which is the period after the first response period RT1.

[0102] In the first response period RT1, first, in cycle D1 and cycle D2, direction change processing is performed for signals transmitted and received from the printing device 20 via the data line LSDA. After transmitting the request signal RS to the device 130, the control unit 39 discharges charges in the data line LSDA by setting the potential of the data line LSDA to 0 V in cycle D1. Then, the control unit 39 sets the drive state of the host terminal HSDA in the slave control unit 50 to the high impedance state in cycle D2. Thus, the printing device 20 enters a state where signal input is possible. After receiving the request signal RS in synchronization with the clock signal SCK, the processing unit 136 of the device 130 sets the drive state of each data terminal 210 to the high impedance state in cycle D1.This is to avoid outputting a signal from the data terminal 210 while the charges of the data line LSDA are being discharged from the control unit 39 of the printing device 20. Similarly, the processing unit 136 of the device 130 sets the drive state of the data terminal 210 to the high impedance in cycle D2. The first two bits in the first response period RT1 also function as idle bits to make the number of bits of the first command of the request signal RS and the number of bits of the signal in the first response period RT1 equal. The number of cycles of the clock signal SCK constituting the first response period RT1 is equal to the number of cycles of the clock signal SCK synchronized with the first command of the request signal RS.

[0103] Then, in cycles D3 to D8, the processing unit 136 of each device 130 outputs the first response signal FS to the data terminal 210 at a predetermined time. The first response signal FS is output for each cycle of the clock signal SCK from different processing units 136A to 136D. The first response signal FS has a low voltage. As shown in Fig. As shown in Figure 11C, the first response signal FS is a signal output to the data terminal 210 during the period when the clock signal SCK is at a high level. The first response signal FS is at a low level during a period when the clock signal SCK is at a high level. The processing unit 136 of the device 130 outputs a low voltage to the data terminal 210 when the voltage input to the clock terminal 220 changes from a low level to a high level.

[0104] As described above, the first response signal FS includes a first low response voltage, which is a low level lower than the first reference response voltage as a threshold. The first reference response voltage is a voltage that acts as a reference for determining a low level and a high level, and is set, for example, between the voltage of the power source 441 and the voltage of the ground potential.

[0105] As in Fig. As shown in Figure 11B, the first time point t1 is set in a period when the clock signal SCK is at a high level in each of the cycles D5 to D8 of the first response period RT1. The first time point t1 is set in a period when the first response signal FS is at a low level. As shown in Fig. 11C, the device 130 outputs a low voltage to the data terminal 210 starting before the first time t1 and continuing until the first time t1 in a period when the clock signal SCK is at a high level in one cycle of the clock signal SCK.

[0106] As in Fig. 11B, the cycle D9 of the first response period RT1 functions as a dummy bit to make the number of bits in the first command period and the number of bits in the first response period RT1 equal.

[0107] As in Fig. 11B, in the second response period RT2, the control unit 39 discharges charges in the data line LSDA by setting the potential of the data line LSDVA to 0 V. In cycle D1, the processing unit 136 of the device 130 sets the drive state of the data terminal 210 to the high resistance. Also in cycle D2, the processing unit 136 of the device 130 sets the drive state of the data terminal 210 to the high resistance. The first two bits in the second response period RT2 also function as dummy bits to make the number of bits of the second command of the request signal RS and the number of bits of the signal in the second response period RT2 equal. The number of cycles of the clock signal SCK constituting the second response period RT is equal to the number of cycles of the clock signal SCK synchronized with the second command of the request signal RS.

[0108] Then, in cycles D5 to D8, the processing unit 136 of each device 130 outputs the second response signal SS to the data terminal 210 at a predetermined timing. The second response signal SS is output from different processing units 136A to 136D for each cycle of the clock signal SCK. The second response signal SS includes a low voltage and a high voltage. As shown in Fig. As shown in Figure 11D, the waveform of the second response signal SS has a phase opposite to the phase of the waveform of the clock signal SCK input to the clock terminal 220. The second response signal SS includes a high level in a period when the clock signal SCK is at a low level and includes a low level in a period when the clock signal SCK is at a high level.

[0109] As described above, the second response signal SS includes a second low response voltage as a low level and a second high response voltage as a high level higher than the second low response voltage. The second low response voltage is a voltage lower than a second reference response voltage as a threshold, and the second high response voltage is a voltage higher than the second reference response voltage as the threshold. The second reference response voltage is a voltage that functions as a reference for determining a low level and a high level, and is set, for example, between the voltage of the power source 441 and the voltage of the ground potential. The second reference response voltage may be the same as or different from the first reference response voltage. The waveform of the second response signal SS is different from the waveform of the first response signal FS.

[0110] As in Fig. 11B, the second time point t2 is set in a period when the clock signal SCK is at a low level in each of the cycles D5 to D8 of the second response period RT2. The second time point t2 is set in a period when the second response signal SS is at a high level. The third time point t3 is set in a period when the clock signal SCK is at a high level in each of the cycles D5 to D8 of the second response period RT2. The third time point t3 is set in a period when the second response signal SS is at a low level. As shown in Fig. As shown in Figure 11D, the device 130 outputs a high voltage to the data terminal 210 starting before the second time t2 and continuing until the second time t2 in a period when the clock signal SCK is at a low level in one cycle of the clock signal SCK. The device 130 outputs a low voltage to the data terminal 210 starting before the third time t3 and continuing until the third time t3 in a period of a high level in one cycle of the clock signal SCK.

[0111] As in Fig. 11B, the cycle D9 of the second response period RT2 functions as dummy bit data to make the number of bits in the second command period and the number of bits in the second response period RT2 equal.

[0112] Output periods of the first response signal FS and the second response signal SS are different for each of the components 130A to 130B of the liquid storage container 100A to 100D. In the present embodiment, the component 130 outputs the first response signal FS and the second response signal SS in one cycle of the clock signal SCK corresponding to the identification information. As shown in Fig. 11B, the liquid storage container 100A outputs the first response signal FS and the second response signal SS to the data terminal 210 in each cycle D8 of the first response period RT1 and the second response period RT2. The liquid storage container 100B outputs the first response signal FS and the second response signal SS to the data terminal 210 in each cycle D7 of the first response period RT1 and the second response period RT2. The liquid storage container 100C outputs the first response signal FS and the second response signal SS to the data terminal 210 in each cycle D6 of the first response period RT1 and the second response period RT2. The liquid storage container 100D outputs the first response signal FS and the second response signal SS to the data terminal 210 in each cycle D5 of the first response period RT1 and the second response period RT2.

[0113] As in Fig. 11B, the device 130 switches the drive state of the data terminal 210 from the high impedance to the low level and outputs the first response signal FS after the clock signal SCK having a predetermined number of cycles is input to the clock terminal 220. As shown in Fig. For example, as shown in FIG. 11B, after the clock signal SCK is input to the clock terminal 220 in cycles D1 to D7 in the first response period RT1, the device 130A switches the drive state of the data terminal 210 from the high impedance to the low level and outputs the first response signal FS. The device 130 then switches the drive state of the data terminal 210 from the low level to the high impedance and stops outputting the first response signal FS. For example, as shown in FIG. Fig. As shown in Figure 11B, the device 130A outputs the first response signal FS in the cycle D8 in the first response period RT1, and then switches the drive state of the data terminal 210 to the high resistance. Thus, the device 130A stops outputting the first response signal FS.

[0114] As in Fig. 11B, the device 130 switches the drive state of the data terminal 210 from the high impedance to the high level and outputs the second response signal SS after the clock signal SCK having a predetermined number of cycles is input to the clock terminal 220. For example, as shown in Fig. 11B, after the clock signal SCK is input to the clock terminal 220 in cycles D1 to D7 in the second response period RT2, the device 130A switches the drive state of the data terminal 210 from the high level to the high level and outputs the second response signal SS. The device 130 then switches the drive state of the data terminal 210 from the low level to the high level and stops outputting the second response signal SS. For example, as shown in Fig. As shown in Figure 11B, the device 130A outputs the second response signal SS in the cycle D8 in the second response period RT2, and then switches the drive state of the data terminal 210 from the low level to the high resistance. Thus, the device 130A stops outputting the second response signal SS.

[0115] As described above, the device 130 outputs the first response signal FS to the data terminal 210 after the request signal RS is input to the data terminal 210. In addition, the device 130 outputs the first response signal FS and then the second response signal SS to the data terminal 210. If the data terminal 210 is not short-circuited with the clock terminal 220, the power source terminal 230, and the reset terminal 240, the device 130 performs the following. As shown in Fig. 11C, the device 130 outputs the first low response voltage as the first expected value to the data terminal 210 at a predetermined first time t1 in a period at which the voltage input to the clock terminal 220 is a high clock voltage. As shown in Fig. 11D, after the device 130 outputs the first low response voltage, the device 130 outputs the second high response voltage as a second expected value to the data terminal 210 at a second time t2 at which the voltage input to the clock terminal 220 is a low clock voltage. As shown in Fig. 11D, after the device 130 outputs the second high response voltage, the device 130 outputs the second low response voltage as a third expected value to the data terminal 210 at a third time t3 at which the voltage input to the clock terminal 220 is a high clock voltage.

[0116] The first response signal FS is configured at a low level. The low level of the first response signal FS indicates that the data port 210 is not short-circuited with the ports 220, 230, 240, and 250 except the data port 210. The second response signal SS is configured at a high level and a low level. The high level of the second response signal SS indicates that the liquid storage container 100 is mounted in the printing device 20. The low level of the second response signal SS indicates that the data port 210 is not short-circuited with the ports 220, 230, 240, and 250 except the data port 210. A3-3. Details of software configuration (coupling state determination processing):

[0117] The coupling state determination processing executed by the main control unit 40 will be described with reference to Fig. 12 described. Fig. 12 is a diagram illustrating an overview of the coupling state determination processing executed by the main control unit 40. As shown in Fig. 12, the main control unit 40 determines the coupling state using a combination of the voltages output from the data terminal 210 of the liquid storage container 100 at each of the first time t1 to the third time t3. The first time t1 to the third time t3 are assigned to the periods of the cycles D5 to D8 in accordance with the liquid storage containers 100A to 100D, as described with reference to Fig. 11B described above. The expected value of the voltage output from the data terminal 210 of the liquid storage container 100 at each of the first time t1 to the third time t3 is the voltage output from the data terminal 210 when the liquid storage container 100 is in the assembly-completed state. The expected value is a low level at the first time t1, a high level at the second time t2, and a low level at the third time t3. In a first case where the voltage output from the data terminal 210 of the liquid storage container 100 is equal to the expected value, the determination unit 411 of the main control unit 40 determines that the liquid storage container 100 is in the assembly-completed state and thus determines "container prepared."

[0118] In a second case, where the voltage output from the data terminal 210 of the liquid storage container 100 is at a low level at each of the first time t1 to the third time t3, the determination unit 411 of the main control unit 40 determines that the liquid storage container 100 is in the non-assembly state and thus determines "no container." Strictly speaking, if the data terminal 210 and the ground terminal 250 are short-circuited, the voltage output from the data terminal 210 of the liquid storage container 100 would also be at a low level at each of the first time t1 to the third time t3. However, as explained above, the contact portions cpd, cpvs are arranged to make such a short circuit unlikely, so it is reasonable to assume that no container is attached in the second case and thus determine "no container."For the same reason, it can be said that the low level of the first response signal FS and the low level of the second response signal SS in the first case indicate that the data terminal 210 does not have a short circuit with the ground terminal 250.

[0119] In a third case, where the voltage output from the data terminal 210 of the liquid storage container 100 is high at the first time t1, low at the second time t2, and high at the third time t3, the determination unit 411 of the main control unit 40 determines that the data terminal 210 and the clock terminal 220 are in the short-circuit state and thus determines "short circuit occurs." When the data terminal 210 and the clock terminal 220 are short-circuited, the voltage of the data terminal 210 becomes substantially equal to the voltage of the clock terminal 220. Analogous to the clock signal SCK in Fig. 11B, the voltage output from the data terminal 210 of the liquid storage container 100 is high at the first time t1, low at the second time t2, and high at the third time t3. As described above, when the data terminal 210 and the clock terminal 220 are short-circuited among the data terminal 210, the power source terminal 230, the reset terminal 240, and the clock terminal 220, the voltage output from the data terminal 210 coupled to the device 130 at each of the first time t1 to the third time t3 of the control unit 39 of the printing device 20 is configured as follows. The voltage output from the data terminal 210 is different from the first expected value at the first time t1, different from the second expected value at the second time t2, and different from the third expected value at the third time t3.

[0120] In a fourth case, where the voltage output from the data terminal 210 of the liquid storage container 100 is at a high level at each of the first time t1 to the third time t3, the determination unit 411 of the main control unit 40 determines that the data terminal 210 and the power source terminal 230 are in the short-circuit state and / or that the data terminal 210 and the reset terminal 240 are in the short-circuit state, and thus determines "short circuit occurs." When the data terminal 210 and the power source terminal 230 are short-circuited, or when the data terminal 210 and the reset terminal 240 are short-circuited, the voltage of the data terminal 210 becomes substantially equal to the voltage of the power source terminal 230 or the voltage of the reset terminal 240. As shown in Fig. As shown in Figure 11B, the power source terminal 230 and the reset terminal 240 are at a high level during the first response period RT1 and the second response period RT2. Thus, the voltage output from the data terminal 210 of the liquid storage container 100 is at a high level at each of the first time point t1 to the third time point t3. As described above, the voltage output from the data terminal 210 coupled to the device 130 at each of the first time t1 to the third time t3 of the control unit 39 of the printing device 20 is configured as follows when a case where the data terminal 210 and the power source terminal 230 are short-circuited and / or a case where the data terminal 210 and the reset terminal 240 are short-circuited occurs among the data terminal 210, the power source terminal 230, the reset terminal 240, and the clock terminal 220.The voltage output from the data terminal 210 is different from the first expected value at the first time t1, is equal to the second expected value at the second time t2, and is different from the third expected value at the third time t3.

[0121] As described above, the printing device 20 first detects at the first time t1 that the data terminal 210 is not short-circuited with the terminals 220, 230, 240, and 250 except the data terminal 210. In this state, the printing device 20 detects at the second time t2 that the liquid receiving container 100 is mounted in the printing device 20. The printing device 20 again checks at the third time t3 that the data terminal 210 is not short-circuited with the terminals 220, 230, 240, and 250 except the data terminal 210. By detecting the voltages output from the data terminal 210 at the first time t1 to the third time t3, it is checked that the liquid receiving container 100 is in the mounting-complete state.As described later, a case is considered where a short circuit occurs between the data terminal 210 and the other terminals 220, 230, 240, and 250 within the first response period RT1 and the second response period RT2. By detecting that the data terminal 210 is not short-circuited with the other terminals 220, 230, 240, and 250 at the first time point t1 before the second time point t2 and at the third time point t3 after the second time point t2, it is verified with high accuracy that the liquid storage container 100 is in the assembly-completed state. As described above, the assembly detection mechanism and a short-circuit detection mechanism between the terminals 290 in the liquid storage container 100 are recognized as independent components.

[0122] When the printing device 20 detects that the data terminal 210 and the clock terminal 220 are not short-circuited, it is necessary to distinguish between the voltage detected by the printing device 20 when the data terminal 210 and the clock terminal 220 are short-circuited and the voltage detected by the printing device 20 when the data terminal 210 and the clock terminal 220 are not short-circuited. One cycle of the clock signal SCK has a low-level period and a high-level period. When the data terminal 210 and the clock terminal 220 are not short-circuited, the device 130 outputs the voltage equal to the high level of the data terminal 210 in the low-level period in one cycle. However, the device 130 also outputs the voltage equal to the high level even if the data terminal 210 and the clock terminal 220 are short-circuited.As a result, the printing device 20, which has detected the output from the data terminal 210, may have difficulty determining whether the data terminal 210 and the clock terminal 220 are short-circuited or not. To avoid this, the device 130 outputs to the data terminal 210 the voltage different from the voltage of the clock signal SCK at the first time t1 to the third time t3, so that the printing device 20 can distinguish between the voltage detected by the printing device when the data terminal 210 and the clock terminal 220 are short-circuited and the voltage detected by the printing device when the data terminal 210 and the clock terminal 220 are not short-circuited.This is applied analogously to a case where the data terminal 210 and the power source terminal 230 are short-circuited and to a case where the data terminal 210 and the reset terminal 240 are short-circuited.

[0123] Concrete examples of coupling state determination processing are given with reference to Fig. 13A to 20B. In a first concrete example to a ninth concrete example described below, a liquid storage container 100A is described as an example. In the second concrete example to the ninth concrete example, waveforms shown in Fig. 13A to 20B schematically illustrate an example of the voltage of terminal 290 that was actually observed. The control unit 39 detects the voltage output from the data terminal 210 as either a high level or a low level based on a predetermined threshold. First concrete example

[0124] In the first concrete example, a case is described in which the liquid receiving container 100A is in the assembly-completed state. Fig. 13A is a first timing chart illustrating the coupling state determination processing. Fig. 13B is a second timing chart illustrating the coupling state determination processing. As in Fig. As shown in Figure 13A, the slave control unit 50 transmits the request signal RS to the device 130A of the liquid storage container 100A in the command period CMT. The request signal RS transmitted to the device 130A has a high level in the bit of cycle D8 to designate the liquid storage container 100A as the destination. As shown in Fig. As shown in Fig. 13B, in the assembly-completed state, the sub-control unit 50 detects a low level from the data terminal 210 at the first time point t1 in the cycle D8 in the first response period RT1, a high level at the second time point t2 in the cycle D8 in the second response period RT2, and a low level at the third time point t3 in the cycle D8 in the second response period RT2. In this case, the determination unit 421 of the main control unit 40 determines "container provided" for the liquid storage container 100A at the first time point t1 to the third time point t3 because the expected value is equal to the detected value. Second concrete example

[0125] In a second concrete example, the coupling state determination processing when a short circuit occurs between the data terminal 210 and the clock terminal 220 will be described. Fig. 14A is a third timing chart illustrating the coupling state determination processing. Fig. 14B is a fourth timing chart illustrating the coupling state determination processing. In Fig. 14A, it is assumed that a short circuit occurs between the data terminal 210 and the clock terminal 220 of the liquid storage container 100A at a time ta before the command period CMT. As shown in Fig. As shown in Fig. 14B, the change in the voltage output from the data terminal 210 is the same as a case of the signal from the clock terminal 220. The slave control unit 50 detects a high level from the data terminal 210 at the first time point t1 of the cycle D8 in the first response period RT1, a low level at the second time point t2 of the cycle D8 in the second response period RT2, and a high level at the third time point t3 of the cycle D8 in the second response period RT2. In this case, the data terminal 210 and the clock terminal 220 are in the short-circuit state, and thus the determination unit 411 of the main control unit determines "short circuit occurs." Third concrete example

[0126] In a third concrete example, the coupling state determination processing when a short circuit occurs between the data terminal 210 and the clock terminal 220 will be described. The third concrete example differs from the second concrete example in that the device 130 receives the request signal RS, and then a short circuit occurs between the data terminal 210 and the clock terminal 220. Fig. 15 is a fifth timing chart illustrating the coupling state determination processing. Assume that a short circuit occurs between the data terminal 210 and the clock terminal 220 of the liquid storage container 100A at a time tb of the first response period RT1. In this case, the signal output from the data terminal 210 is the same as the signal from the clock terminal 220. Thus, the sub-control unit 50 detects a high level from the data terminal 210 at the first time t1 of the cycle D8 in the first response period RT1, a low level at the second time t2 of the cycle D8 in the second response period RT2, and a high level at the third time t3 of the cycle D8 in the second response period RT2.In this case, with respect to the liquid storage container 100A, the data terminal 210 and the clock terminal 220 are in the short-circuit state, and therefore the determination unit 411 of the main control unit 40 determines “short circuit occurs”. Fourth concrete example

[0127] In a fourth concrete example, the coupling state determination processing when a short circuit occurs between the data terminal 210 and the power source terminal 230 will be described. Fig. 16A is a sixth timing chart illustrating the coupling state determination processing. Fig. 16B is a seventh timing chart illustrating the coupling state determination processing. In Fig. 16A and Fig. 16B, it is assumed that a short circuit occurs between the data terminal 210 and the power source terminal 230 of the liquid storage container 100A at time ta before the command period CMT. As shown in Fig. As shown in Fig. 16B, the change in the voltage output from the data terminal 210 is the same as a case of the signal from the power source terminal 230. The sub-control unit 50 detects, from the data terminal 210, a high level at the first time point t1 of the cycle D8 in the first response period RT1, a high level at the second time point t2 of the cycle D8 in the second response period RT2, and a high level at the third time point t3 of the cycle D8 in the second response period RT2. In this case, with respect to the liquid storage container 100A, the data terminal 210 and the power source terminal 230 are in the short-circuit state, and thus the determination unit 411 of the main control unit 40 determines "short circuit occurs." Fifth concrete example

[0128] In a fifth concrete example, the coupling state determination processing when a short circuit occurs between the data terminal 210 and the power source terminal 230 will be described. The fifth concrete example differs from the fourth concrete example in that the device 130 receives the request signal RS, and then a short circuit occurs between the data terminal 210 and the power source terminal 230. Fig. 17 is an eighth timing chart illustrating the coupling state determination processing. Assume that a short circuit occurs between the data terminal 210 and the power source terminal 230 of the liquid storage container 100A at time tb of the first response period RT1. In this case, the signal output from the data terminal 210 is the same as the signal from the power source terminal 230. Thus, the sub-control unit 50 detects a high level from the data terminal 210 at the first time t1 of the cycle D8 in the first response period RT1, a high level at the second time t2 of the cycle D8 in the second response period RT2, and a high level at the third time t3 of the cycle D8 in the second response period RT2.In this case, with respect to the liquid storage container 100A, the data terminal 210 and the power source terminal 230 are in the short-circuit state, and therefore the determination unit 411 of the main control unit 40 determines “short circuit occurs”. Sixth concrete example

[0129] In a sixth concrete example, the coupling state determination processing when a short circuit occurs between the data terminal 210 and the reset terminal 240 will be described. Fig. 18A is a ninth timing chart illustrating the coupling state determination processing. Fig. 18B is a tenth timing chart illustrating the coupling state determination processing. In Fig. 18A and Fig. 18B, it is assumed that a short circuit occurs between the data terminal 210 and the reset terminal 240 of the liquid storage container 100A at time ta before the command period CMT. As shown in Fig. As shown in Fig. 18B, the change in the voltage output from the data terminal 210 is the same as a fall in the signal from the reset terminal 240. Thus, the sub-control unit 50 detects a high level from the data terminal 210 at the first time point t1 of the cycle D8 in the first response period, a high level at the second time point t2 of the cycle D8 in the second response period, and a high level at the third time point t3 of the cycle D8 in the second response period. In this case, with respect to the liquid storage container 100A, the data terminal 210 and the reset terminal 240 are in the short-circuit state, and thus the determination unit 411 of the main control unit 40 determines "short circuit occurs." Seventh concrete example

[0130] In a seventh concrete example, the coupling state determination processing when a short circuit occurs between the data terminal 210 and the reset terminal 240 will be described. The seventh concrete example differs from the sixth concrete example in that the device 130 receives the request signal RS, and then a short circuit occurs between the data terminal 210 and the reset terminal 240. Fig. 19 is an eleventh timing chart illustrating the coupling state determination processing. Assume that a short circuit occurs between the data terminal 210 and the reset terminal 240 of the liquid storage container 100A at time tb of the first response period RT1. In this case, the signal output from the data terminal 210 is the same as the signal from the reset terminal 240. Thus, the sub-control unit 50 detects a high level from the data terminal 210 at the first time t1 of the cycle D8 in the first response period, a high level at the second time t2 of the cycle D8 in the second response period, and a high level at the third time t3 of the cycle D8 in the second response period.In this case, with respect to the liquid storage container 100A, the data terminal 210 and the reset terminal 240 are in the short-circuit state, and therefore the determination unit 411 of the main control unit 40 determines “short circuit occurs”. Eighth concrete example

[0131] In an eighth concrete example, a case is described in which the liquid receiving container 100A is in the non-assembly-completed state. More specifically, the eighth concrete example describes a case in which the liquid receiving container 100A is removed from the receiving area 4 before the component 130A receives the request signal RS. Fig. 20A is a twelfth timing chart illustrating the coupling state determination processing. When the liquid storage container 100A is not mounted on the receiving area 4, the drive state of the host terminal HSDA1 of the sub-control unit 50 becomes a low level due to the coupled pull-down resistor. Thus, the sub-control unit 50 detects a low level at the first time point t1 of the cycle D8 in the first response period RT1, a low level at the second time point t2 of the cycle D8 in the second response period RT2, and a low level at the third time point t3 of the cycle D8 in the second response period RT2. In this case, the liquid storage container 100A is in the non-mounting-completed state, and therefore, the determination unit 421 of the main control unit 40 determines "no container." Ninth Concrete Example

[0132] In a ninth concrete example, a case is described in which the liquid receiving container 100A is removed from the receiving area 4 during the first response period RT1. Fig. 20B is a thirteenth timing chart illustrating the coupling state determination processing. The slave control unit 50 detects a low level at the first time point t1 of the cycle D8 in the first response period RT1, a low level at the second time point t2 of the cycle D8 in the second response period RT2, and a low level at the third time point t3 of the cycle D8 in the second response period RT2. In this case, the liquid storage container 100A is in the assembly-uncompleted state, and therefore the determination unit 421 of the main control unit 40 determines "no container." Other concrete examples

[0133] In other concrete examples, various coupling states and determination results of the determination unit 421 for the respective coupling states are described. Fig. 20C is a diagram illustrating other concrete examples of the coupling state determination processing. In the coupling state determination processing, the determination unit 411 of the main control unit 40 determines "short circuit occurs" when at least one of the detected values at the first time t1 and the third time t3 is different from the expected value.

[0134] Case No. 1 refers to a case where the data terminal 210 and the clock terminal 220 are short-circuited at a time t before the first time t1. In this case, the circuit board 120 outputs a high voltage different from the first expected value to the printing device 20 from the data terminal 210 at the first time t1, a low voltage different from the second expected value at the second time t2, and a high voltage different from the third expected value at the third time t3. In this case, the determination unit 411 determines "short circuit occurs."

[0135] Case No. 2 refers to a case where the data terminal 210 and the clock terminal 220 are short-circuited at a time t before the second time t2 after the first time t1. In this case, the circuit board 120 outputs a low voltage equal to the first expected value from the data terminal 210 to the printing device 20 at the first time t1, a low voltage different from the second expected value at the second time t2, and a high voltage different from the third expected value at the third time t3. In this case, the determination unit 411 determines "short circuit occurs."

[0136] Case No. 3 refers to a case where the data terminal 210 and the clock terminal 220 are short-circuited at a time t before the third time t3 after the second time t2. In this case, the circuit board 120 outputs a low voltage equal to the first expected value from the data terminal 210 to the printing device 20 at the first time t1, a high voltage equal to the second expected value at the second time t2, and a high voltage different from the third expected value at the third time t3. In this case, the determination unit 411 determines "short circuit occurs."

[0137] Case No. 4 refers to a case where a short circuit between the data terminal 210 and the clock terminal 220 is eliminated at a time t before the second time t2 after the first time t1. In this case, the circuit board 120 outputs a high voltage different from the first expected value from the data terminal 210 to the printing device 20 at the first time t1, a high voltage equal to the second expected value at the second time t2, and a low voltage equal to the third expected value at the third time t3. In this case, the determination unit 411 determines "short circuit occurs."

[0138] Case No. 5 refers to a case where a short circuit between the data terminal 210 and the clock terminal 220 is eliminated at a time t before the third time t3 after the second time t2. In this case, the circuit board 120 outputs a high voltage different from the first expected value to the printing device 20 from the data terminal 210 at the first time t1, a low voltage different from the second expected value at the second time t2, and a low voltage equal to the third expected value at the third time t3. In this case, the determination unit 411 determines "short circuit occurs."

[0139] Case No. 6 refers to a case where the data terminal 210 and the power source terminal 230 are short-circuited at a time t before the first time t1, and / or a case where the data terminal 210 and the reset terminal 240 are short-circuited at a time t before the first time t1. In this case, the circuit board 120 outputs a high voltage different from the first expected value to the printing device 20 from the data terminal 210 at the first time t1, a high voltage equal to the second expected value at the second time t2, and a high voltage different from the third expected value at the third time t3. In this case, the determination unit 411 determines "short circuit occurs."

[0140] Case No. 7 refers to a case where the data terminal 210 and the power source terminal 230 are short-circuited at a time t before the second time t2 after the first time t1, and / or a case where the data terminal 210 and the reset terminal 240 are short-circuited at a time t before the second time t2 after the first time t1. In this case, the circuit board 120 outputs a low voltage equal to the first expected value from the data terminal 210 to the printing device 20 at the first time t1, a high voltage equal to the second expected value at the second time t2, and a high voltage different from the third expected value at the third time t3. In this case, the determination unit 411 determines "short circuit occurs."

[0141] Case No. 8 refers to a case where the data terminal 210 and the power source terminal 230 are short-circuited at a time t before the third time t3 after the second time t2, and / or a case where the data terminal 210 and the reset terminal 240 are short-circuited at a time t before the third time t3 after the second time t2. In this case, the circuit board 120 outputs a low voltage equal to the first expected value from the data terminal 210 to the printing device 20 at the first time t1, a high voltage equal to the second expected value at the second time t2, and a high voltage different from the third expected value at the third time t3. In this case, the determination unit 411 determines "short circuit occurs."

[0142] Case No. 9 refers to a case where a short circuit between the data terminal 210 and the power source terminal 230 is eliminated and a short circuit between the data terminal 210 and the reset terminal 240 is eliminated at a time t before the second time t2 after the first time t1. In this case, the circuit board 120 outputs a high voltage different from the first expected value from the data terminal 210 to the printing device 20 at the first time t1, a high voltage equal to the second expected value at the second time t2, and a low voltage different from the third expected value at the third time t3. In this case, the determination unit 411 determines "short circuit occurs."

[0143] Case No. 10 refers to a case where a short circuit between the data terminal 210 and the power source terminal 230 is eliminated, and a short circuit between the data terminal 210 and the reset terminal 240 is eliminated, at a time t before the third time t3 after the second time t2. In this case, the circuit board 120 outputs a high voltage different from the first expected value to the printing device 20 from the data terminal 210 at the first time t1, a high voltage equal to the second expected value at the second time t2, and a low voltage equal to the third expected value at the third time t3. In this case, the determination unit 411 determines "short circuit occurs." A3-4. Other software configuration:

[0144] In the first embodiment, when the component 130 receives the request signal RS during printing based on a first print instruction and the printing device 20 receives a second print instruction, the component 130 may output the first response signal FS and the second response signal SS to the data port 210 before starting printing based on the second print instruction after the printing based on the first print instruction is completed. When the component 130 receives the request signal RS and the printing device receives a cleaning instruction of the print head 5, the component 130 may output the first response signal FS and the second response signal SS to the data port 210 before performing cleaning.If the component 130 receives the request signal RS and the carriage 30 is at a replacement position where replacement of the liquid receptacle 100 is possible, the component 130 can output the first response signal FS and the second response signal SS to the data port 210. If the component 130 further receives the request signal RS and the carriage 30 moves from the replacement position to a standby position where replacement of the liquid receptacle 100 is not possible, the component 100 can output the first response signal FS and the second response signal SS to the data port 210. The replacement position is, for example, the position of the carriage 30 at the home position.

[0145] The first response signal FS can also be called the first signal. The second response signal SS can also be called the second signal. The first low response voltage can also be called the first low voltage. The first high response voltage can also be called the first high voltage. The second low response voltage can also be called the second low voltage. The second high response voltage can also be called the second high voltage. The low clock voltage can also be called the low voltage. The high clock voltage can also be called the high voltage. The low reset voltage can also be called the low voltage. The high reset voltage can also be called the high voltage. A4. Other embodiments of the first embodiment: A4-1. Embodiment 1 for the circuit board:

[0146] Fig. 21A is a diagram showing a circuit board as Embodiment 1. Fig. 21A illustrates an example of a combination of arrangements of a plurality of contact portions cp. The arrangement of the data contact portion cpd, the clock contact portion cpc, the power source contact portion cpvd, the reset contact portion cpr, and the ground contact portion cpvs is not limited to the first embodiment, and another arrangement may be used, as shown in combinations Nos. 1 to 24 in Fig. 21A. Combinations No. 1 to No. 24 have the arrangements in which the clock contact portion cpc, the data contact portion cpd, the power source contact portion cpvd, and the reset contact portion cpr are arranged in the first region Rg1, and the ground contact portion cpvs is arranged in the second region Rg2. Each row of the table describes an arrangement in which the contact portion indicated in column (a) is located at the position corresponding to the projection position (a) on the virtual line C2 in the diagram on the left side of Fig. 21A (i.e., the position of the contact portion cpc in the first possible arrangement shown). Analogously, the contact portion in column (b) is located at the position corresponding to the projection position (b) shown in the diagram, and so on. In other words, the locations of the contact portions can be interchanged to suit any of the arrangements given in the table in different embodiments.

[0147] In combinations No. 1 to No. 18 of the arrangements of the contact portions cp, at least one contact portion cp is arranged under the clock contact portion cpc, the power source contact portion cpvd, and the reset contact portion cpr to be projected between the projection position swd of the data contact portion cpd and the projection position swvs of the ground contact portion cpvs. In combinations No. 1 to No. 12 of the arrangements of the contact portions cp, any two or more contact portions cp are arranged under the clock contact portion cpc, the power source contact portion cpvd, and the reset contact portion cpr to be projected between the projection position swd of the data contact portion cpd and the projection position swvs of the ground contact portion cpvs. In combinations No. 1 to No. 6 and No. 13 to No.In combinations Nos. 18, 11, 14, 15, 16, 18a, 19, 20, and 23 of the arrangements of the contact portions cp, the data contact portion cpd is arranged to be projected between the projection positions of any two contact portions cp among the power source contact portion cpvd, the reset contact portion cpr, and the clock contact portion cpc. In combinations Nos. 1, 3, 8, 11, 14, 15, 20, and 23 of the arrangements of the contact portions cp, one or both of the data contact portion cpd and the reset contact portion cpr are arranged to be projected onto the second virtual line C2 between the power source contact portion cpvd and the clock contact portion cpc. The reset contact portion cpr is arranged so that the projection position swr is adjacent to or adjacent to the projection position swvd of the power source contact portion cpvd.In combinations 1, 2, 6 to 8, 13, 14, 16, 23, and 24 of the arrangements of the contact portions cp, the power source contact portion cpvd is arranged so that the projection position swvd is adjacent to or adjacent to the projection position swd of the data contact portion cpd. In combination No. 1 of the arrangements of the contact portions cp, the clock contact portion cpc is arranged to be projected at the farthest position from the projection position swvs of the ground contact portion cpvs. The data contact portion cpd, the power source contact portion cpvd, and the reset contact portion cpr are arranged to be projected in this order in a direction from the projection position swc of the clock contact portion cpc toward the projection position swvs of the ground contact portion cpvs on the second virtual line C2.

[0148] Fig. 21B shows arrangement examples that are used in Fig. 21A of Nos. 2 and 3. A board 120b corresponds to the arrangement example shown in Fig. 21A of No. 2. It is noted that examples No. 4 to No. 24 could be represented in an analogous manner. The board 120b differs from the board 120 shown in Fig. 5, in that the positional relationship between the clock contact portion cpc and the reset contact portion cpr is changed. A circuit board 120c corresponds to the arrangement example shown in Fig. 21A of No. 3. The board 120c differs from the board 120 shown in Fig. 5, in that the positional relationship between the power source contact portion cpvd and the reset contact portion cpr is changed.

[0149] The combination of arrangements of the contact portions cp shown in Fig. 21A can be applied analogously to the combination of arrangements of the data terminal 210, the clock terminal 220, the power source terminal 230, the reset terminal 240, and the ground terminal 250. The combination of arrangements of the contact portions cp shown in Fig. 21A can also be applied to the combination of arrangements of the device-side terminals 490.

[0150] In the first embodiment and the Fig. 21A and Fig. 21B, the ground contact portion cpvs is disposed in the second region Rg2, but one or more contact portions other than the ground contact portion cpvs may be disposed in the second region Rg2. For example, the data contact portion cpd, the power source contact portion cpvd, the reset contact portion cpr, and the ground contact portion cpvs may be disposed in the first region Rg1, and the clock contact portion cpc may be disposed in the second region Rg2. For example, the data contact portion cpd, the clock contact portion cpc, the power source contact portion cpvd, and the ground contact portion cpvs may be disposed in the first region Rg1, and the reset contact portion cpr may be disposed in the second region Rg2.For example, the data contact portion cpd, the clock contact portion cpc, the reset contact portion cpr, and the ground contact portion cpvs may be arranged in the first region Rg1, and the power source contact portion cpvd may be arranged in the second region Rg2. For example, the clock contact portion cpc, the power source contact portion cpvd, the reset contact portion cpr, and the ground contact portion cpvs may be arranged in the first region Rg1, and the data contact portion cpd may be arranged in the second region Rg2. Also, in the above examples, the positional relationships between the contact portion cp arranged in the first region Rg1 and the contact portion cp arranged in the second region Rg2 are analogous to those in the first embodiment. A4-2. Design 2 for the circuit board:

[0151] Fig. Fig. 22 is a diagram illustrating circuit boards 120d and 120e with two patterns as Embodiment 2. The arrangement of the ground contact portion 250 is not limited to the above-described first embodiment, and other arrangements may be used. The arrangement of the ground contact portion cpvs in circuit board 120d is different from the arrangement in circuit board 120 shown in Fig. 5. The ground contact portion cpvs of the circuit board 120d is arranged to form part of the second row R2. When the circuit board 120d is used, the coupling mechanism 400 shown in Fig. 7A and Fig. 7B, a device-side terminal corresponding to the ground contact portion cpvs of the circuit board 120. The number of ground contact portions cpvs is not limited to the above-described embodiment and may be two or more. The number of ground contact portions cpvs in the circuit board 120e differs from the circuit board 120 shown in Fig. 5. The circuit board 120e has two ground terminals 250a and 250b, and each of the ground terminals has a ground contact portion cpvs. When the circuit board 120e is used, the coupling mechanism 400 shown in Fig. 7A and Fig. 7B, two device-side terminals corresponding to the two ground terminals 250a and 250b. The arrangement of the data contact portion cpd, the clock contact portion cpc, the power source contact portion cpvd, and the reset contact portion cpr of the boards 120d and 120e is the same as the arrangement in the board 120 shown in Fig. 5, but could be the same as any of the examples in Fig. 21A. The same applies to the other board embodiments explained below, e.g., 120f, 120g, 120ab, etc. The ground contact portion cpvs of the ground terminal 250a and the ground contact portion cpvs of the ground terminal 250b are arranged at different positions in the direction along the first virtual line C1. The ground contact portion cpvs of the ground terminal 250a is arranged to form part of the second row R2. The ground contact portion cpvs of the other ground terminal 250b is arranged to form part of the first row R1. A4-3. Circuit board design 3:

[0152] Fig. Fig. 23 is a diagram illustrating circuit boards 120f and 120g with two patterns as Embodiment 3. The size of the ground terminal 250 is not limited to the first embodiment described above and may have a different value. A ground terminal 250c of the circuit board 120f and a ground terminal 250d of the circuit board 120g are larger than the ground terminal 250 shown in Fig. 5. The ground terminal 250c extends across the first row R1 and the second row R2. The ground terminal 250c is arranged to encompass a central portion CMP of the circuit board 120f in the direction along the first virtual line C1. The ground contact portion 250d of the circuit board 120g is further formed across the first region Rg1 and the second region Rg2. The ground terminal 250d is arranged to encompass the first virtual line C1. A4-4. Circuit board design 4:

[0153] Fig. 24 is a diagram showing boards 120ab and 120ac with two patterns as Embodiment 4. Fig. Fig. 25 is a diagram illustrating circuit boards 120ad and 120ae with two patterns as Embodiment 4. The shapes of the terminals 210 to 250 are not limited to the first embodiment described above, and other shapes may be used. As shown in Fig. 24, the terminals 210 to 250 of the circuit board 120ab are formed to encompass the first row R1 and the second row R2 and have an elongated shape along the first virtual line C1. The terminals 210 to 250 of the circuit board 120ac have a portion having an elongated shape along the first virtual line C1, in addition to a rectangular portion like the terminals 210 to 250 of the circuit board 120. The data terminal 210 of the circuit board 120ad has a portion bent in directions along the first virtual line C1 and the second virtual line C2. The data terminal 210 of the circuit board 120ae has portions bent in a direction along the first virtual line C1 and the second virtual line C2 so as to surround a portion of the power source terminal 230.The positional relationship between the contact portions cp of the terminals 210 to 250 is the same as the positional relationship between the contact portions cp shown in . Fig. 5, in the first embodiment. A4-5. Circuit board design 5:

[0154] Fig. 26 is a diagram showing a circuit board 120Td as embodiment 5. The upper part of Fig. 26 represents the board 120Td. The lower part of Fig. 26 schematically illustrates a coupling mechanism 400Td corresponding to the circuit board 120Td. In the circuit board 120 in the first embodiment, the plurality of contact portions cp are arranged to form two rows, but the present disclosure is not limited to this. In the circuit board 120Td, the contact portions are arranged to form three rows. The data contact portion cpd and the ground contact portion cpvs form a third row. As described above, although the contact portions cp are arranged to be different from the arrangement of the contact portions cp in the first embodiment in the direction along the first virtual line C1, the projection positions on the second virtual line C2 do not change.When the circuit board 120Td is mounted in a direction along the gravity direction, in the circuit board 120Td, the clock contact portion cpc, the power source contact portion cpvd, and the reset contact portion cpr are arranged on the +Z direction side, which is the gravity direction side of the data contact portion cpd. At least one contact portion cpc, cpvd, or cpr among the clock contact portion cpc, the power source contact portion cpvd, and the reset contact portion cpr is arranged to be projected between the projection position swd of the data contact portion cpd and the projection position swvs of the ground contact portion cpvs when the contact portions cp are projected onto the second virtual line C2.Analogous to the data contact portion cpd and the ground contact portion cpvs in the present embodiment, the contact portions cp other than the data contact portion cpd and the ground contact portion cpvs may be arranged at positions in the direction along the first virtual line C1 that are different from the positions of the contact portions cp in the first embodiment. The positional relationship between the contact portions cp as described above is analogous to the positional relationship between the contact portions cp of the device-side terminals 490. When the board 120Td is mounted in the direction along the gravity direction, the device-side clock contact portion dcpc, the device-side power source contact portion dcpvd, and the device-side reset contact portion dcpr are arranged on the +Z direction side, which is the gravity direction side of the device-side data contact portion dcpd.At least one contact portion dcpc, dcpvd, or dcpr among the device-side clock contact portion dcpc, the device-side power source contact portion dcpvd, and the device-side reset contact portion dcpr is arranged to be projected between the projection position swd of the device-side data contact portion dcpd and the projection position swvs of the device-side ground contact portion dcpvs when the contact portions dcp are projected onto the second virtual line C2. A4-6. Embodiment 6 for the circuit board:

[0155] Fig. 27 is a diagram illustrating circuit boards 120U and 120V with two patterns as Embodiment 6 for the circuit board. The shape of the base member 120bd of the circuit board 120 is not limited to the first embodiment described above. The circuit board 120U is commonly used by the four liquid storage containers 100A to 100D. In this case, the liquid storage containers 100A to 100D may be integrally formed. The circuit board 120U includes a first board portion 120UA, a second board portion 120UB, a third board portion 120UC, and a fourth board portion 120UD. The first board portion 120UA is a portion where the terminals 290 used in the liquid storage container 100A are arranged. The second board area 120UB is an area in which the terminals 290 used in the liquid storage container 100B are arranged.The third circuit board region 120UC is a region where the terminals 290 used in the liquid storage container 100C are arranged. The fourth circuit board region 120UD is a region where the terminals 290 used in the liquid storage container 100D are arranged. The first circuit board region 120UA to the fourth circuit board region 120UD can be regarded as independent circuit boards. Four components 130A to 130D used in the four liquid storage containers 100A to 100D are provided on the rear surface 120fb of the circuit board 120U. The terminals 290 in each of the board areas 120UA to 120UD are coupled to the corresponding components 130A to 130D via a wiring pattern layer (not shown) or a through-hole arranged in the board 120U.Here, the power source voltage VDD is supplied to each of the devices 130A to 130D via a common power source terminal 230. In the present embodiment, the common power source terminal 230 is provided in the terminals 290 of the first board region 120UA. Thus, in the board 120U, the power source terminal 230 is not provided in the terminals 290 in the second board region 120UB to the fourth board region 120UD. As described above, some of the terminals 290 may be commonly used by the plurality of devices 130A to 130D.

[0156] In the first embodiment, the base member 120bd of the circuit board 120 is configured from a single member. The present disclosure is not limited to this, and the base member 120bd may be configured from a plurality of base members. In the circuit board 120V, the component 130 and the terminals 290 are arranged on independent base members 124a and 124b instead of on a single base member. The circuit board 120V has a first base member 124a and a second base member 124b. The first base member 124a and the second base member 124b are electrically coupled to each other via a conductive line EL or the like. The materials of the first base member 124a and the second base member 124b are different from each other. For example, the first base member 124a is a rigid base member, and the second base member 124b is a sheet-shaped base member.The component 130 is molded from the resin 139 on the front surface 120faa of the first base member 124a. The terminals 290 are arranged on the front surface 120fab of the second base member 124b. A4-7. Circuit board design 7:

[0157] Fig. 28 is a diagram illustrating a circuit board 120X in Embodiment 7 for the circuit board. As in Fig. 5, the types of terminal 290 in the first embodiment are five types: data terminal 210, clock terminal 220, power source terminal 230, reset terminal 240, and ground terminal 250. The present disclosure is not limited to this, and the number of types may be less than five. For example, the board 120X includes the data terminal 210, the clock terminal 220, the power source terminal 230, and the ground terminal 250. The board 120X does not include the reset terminal 240. In this case, the reset signal RST is generated using, for example, the clock signal SCK in the processing unit 136 of the device 130. For example, the power source terminal 230 does not need to be provided on the board 120X. In this case, the power source voltage VDD is generated, for example, using the clock signal SCK in the processing unit 136 of the device 130.For example, in the circuit board 120X, the power source terminal 230 may be provided, and the reset terminal 240 may not be provided. As described above, the terminals 290 in the above-described first embodiment may not have the reset terminal 240 and / or the power source terminal 230. In the case of the present embodiment, among the terminals 290 of the circuit board 120, the terminals 290 other than the ground terminal 250 are referred to as "other terminal group." In the present embodiment, the ground terminal 250 may also be referred to as the first terminal. The data terminal 210 may also be referred to as the second terminal. The clock terminal 220 may also be referred to as the third terminal. The ground contact portion cpvs may also be referred to as the first contact portion. The data contact portion cpd may also be referred to as the second contact portion.The clock contact section cpc can also be called the third contact section. A4-8. Circuit board design 8:

[0158] In the embodiments of the present disclosure, the arrangement of the terminals 290 or the contact portions cp on both sides of the first virtual line C1 may be changed. The terminals constituting the first row and the terminals constituting the second row may be changed. A4-9. Embodiment 1 of the liquid storage container:

[0159] The liquid receiving container in the present disclosure is not limited to the Fig. 3 and may have other configurations. Other embodiments of the liquid receptacle 100 are described below. The components that are analogous to the components of the liquid receptacle 100 in the first embodiment shown in Fig. 3 and Fig. 4, and the analogous components between other embodiments of the liquid receiving container are denoted by the same reference numerals and a description thereof is accordingly omitted. The component of the printing device 20, such as the Fig. 4, is changed in accordance with the configuration of the liquid receiving container.

[0160] Fig. 29 is a perspective view illustrating a liquid accommodating container 100p as Embodiment 1 of the liquid accommodating container. The liquid accommodating container 100p includes the liquid accommodating body 101, the liquid supply portion 104 having the liquid supply port 1040p, and the circuit board 120. The liquid accommodating body 101 forms the ink chamber 150 that stores ink therein. The liquid supply portion 104 is formed on the bottom wall 101wb and communicates with the ink chamber 150. The circuit board 120 is provided at a corner portion 89 where the third wall 101wb and the second wall 101wr of the liquid accommodating body 101 intersect each other.The liquid storage container 100p is mounted on the receiving portion 4 such that a projecting second container engagement portion 320 of the first wall 101wf is engaged with a recessed portion of the receiving portion 4, and then the liquid storage container 100p is rotated using the second container engagement portion 320 as a fulcrum and moved in a rotational mounting direction RD. In the mounting-completed state, a projecting first container engagement portion 310 of the second wall 101wr is engaged with a lever of the receiving portion 4. In the present embodiment, the mounting direction MD has a +Z-direction component and a -Y-direction component, and the first direction FD has both positive and negative Y-direction components and both positive and negative Z-direction components. A4-10. Embodiment 2 of the liquid storage container:

[0161] Fig. 30 is a perspective view illustrating a liquid containing container 100q as Embodiment 2 of the liquid containing container. Fig. 31 is an enlarged view showing the periphery of the circuit board 120 of the liquid receiving container 100q. As in Fig. As shown in Fig. 30, the liquid accommodating container 100q includes the liquid accommodating body 101, the liquid supply portion 104 having the liquid supply port 1040p, and the circuit board 120. A liquid accommodating bag (not shown) that stores ink is disposed in the liquid accommodating body 101. The liquid accommodating bag is flexible and functions as the ink chamber 150. The liquid supply portion 104 is provided on the liquid accommodating bag and is located at an opening portion 424 formed in the front wall 101wf of the liquid accommodating body 101. The circuit board 120 is provided at a corner portion 89a where the second wall 101wr and the fourth wall 101wu of the liquid accommodating body 101 intersect each other. The corner portion 89a is a recessed portion of the liquid receiving body 101 which is recessed inward.In the present embodiment, the mounting direction is the Y direction, and the first direction FD has both positive and negative Y-direction components and both positive and negative Z-direction components. A4-11. Embodiment 3 of the liquid storage container:.

[0162] Fig. 32 is a perspective view illustrating a liquid accommodating container 100r as Embodiment 3 of the liquid accommodating container. In the liquid accommodating container 100r, the -Y direction is the mounting direction MD. The liquid accommodating container 100r includes the liquid accommodating body 101, the liquid supply portion 104 having the liquid supply port 1040p, and the circuit board 120. A liquid accommodating bag (not shown) that stores ink is disposed in the liquid accommodating body 101. The liquid accommodating bag is flexible and functions as the ink chamber 150. The liquid supply portion 104 is provided on the liquid accommodating bag and is disposed at the opening portion 424 formed in the second wall 101wf of the liquid accommodating body 101.The circuit board 120 is provided at the corner portion 89a where the second wall 101wr and the fourth wall 101wu of the liquid receiving body 101 intersect each other. The corner portion 89a is a recessed portion of the liquid receiving body 101 that is recessed inward. A groove-like container-side engagement structure 425 is formed on the third wall 101wb of the liquid receiving body 101. The container-side engagement structure 425 regulates movement on the +Y direction side, which is a removal direction, of the liquid receiving container 100 by engaging with a protruding device-side engagement structure of the receiving portion 4 in the assembly-completed state of the liquid receiving container 100r.In the present embodiment, the mounting direction MD is the -Y direction and the first direction FD has both positive and negative Y direction components and both positive and negative Z direction components. A4-12. Design 4 of the liquid storage container:

[0163] Fig. 33 is a perspective view illustrating a liquid accommodating container 100s as Embodiment 4 of the liquid accommodating container. The liquid accommodating container 100s is detachably accommodated in a casing 61 provided in the printing apparatus 20 so as to be retractable, and is then mounted in the printing apparatus 20 together with the casing 61. The liquid accommodating container 100s includes the liquid accommodating bag 111 and a coupling member 112 attached to an end portion of the liquid accommodating bag 111 on the -Y direction side. In the present embodiment, the liquid accommodating bag 111 and the coupling member 112 function as a liquid accommodating body. The liquid accommodating bag 111 is flexible. The liquid supply portion 104 having the liquid supply port 104op is provided on the -Y direction side of the liquid accommodating bag 111 functioning as the ink chamber 150.The liquid supply portion 104 is disposed at the opening portion 424 formed in the second wall 101wr of the coupling member 112. The circuit board 120 is disposed at the corner portion 89a, which is a recessed portion formed on the second wall 101wr of the coupling member 112. In the present embodiment, the mounting direction MD is the -Y direction, and the first direction FD has both positive and negative Y-direction components and both positive and negative Z-direction components. A4-13. Embodiment 5 of the liquid storage container:.

[0164] Fig. 34 is a perspective view illustrating a liquid storage container 100w as Embodiment 5 of the liquid storage container. In the liquid storage container 100w, the circuit board 120 is arranged on the fourth wall 101wu, which is a horizontal surface, in the assembly-completed state. The fourth wall 101wu forms the upper wall in the assembly-completed state. The liquid storage container 100w has, analogously to the embodiment shown in Fig. 3 and Fig. 4 includes the liquid accommodating body 101 and the liquid supply portion 104 having the liquid supply port 1040p. A liquid accommodating bag (not shown) that has flexibility and accommodates ink is disposed in the liquid accommodating body 101. The liquid accommodating bag functions as the ink chamber 150. The liquid supply portion 104 is provided on the liquid accommodating bag and is disposed at the opening portion 424 formed in the second wall 101wr of the liquid accommodating body 101. In the present embodiment, the mounting direction MD is the -Y direction, and the first direction FD is both the positive and negative Y directions. A4-14. Embodiment 6 of the liquid storage container:

[0165] Fig. 35 is a perspective view illustrating a liquid receptacle 100x as Embodiment 6 of the liquid receptacle. In the liquid receptacle 100x, the circuit board 120 is arranged on the fifth wall 101wsa, which is a vertical surface, in the assembly-completed state. The fifth wall 101wsa forms a side wall in the assembly-completed state. The liquid receptacle 100x has, analogously to the embodiment shown in Fig. 3 and Fig. 4 includes the liquid accommodating body 101 and the liquid supply portion 104 having the liquid supply port 1040p. A liquid accommodating bag (not shown) that has flexibility and accommodates ink is disposed in the liquid accommodating body 101. The liquid accommodating bag functions as the ink chamber 150. The liquid supply portion 104 is provided on the liquid accommodating bag and is disposed at the opening portion 424 formed in the second wall 101wr of the liquid accommodating body 101. In the present embodiment, the mounting direction MD is the -Y direction, and the first direction FD is both the positive and negative Y directions. A4-15. Embodiment 7 of the liquid storage container:

[0166] Fig. 36 is a diagram illustrating a liquid containing container 100y as Embodiment 7 of the liquid containing container. As shown in Fig. 3 and Fig. 4, the liquid accommodating body 101 and the circuit board 120 are integrally configured in the liquid accommodating container 100 in the first embodiment. The present disclosure is not limited to this. For example, the liquid accommodating container 100y includes a liquid accommodating body 101ya constituting the ink chamber 150 and an adapter 101yb to which the circuit board 120 is attached. The liquid supply portion 104 is formed in the liquid accommodating body 101ya. The liquid accommodating body 101ya is removably received in the recessed adapter 101yb. The adapter 101yb functions as a housing for accommodating the liquid accommodating body 101ya. An opening portion 134, into which the liquid supply portion 104 is inserted, is formed in the third wall 101wb of the adapter 101yb. The liquid receiving body 101ya may be fixed to the adapter 101yb using a fixing member (not shown).The liquid absorption body 101ya does not need to be attached to the adapter 101yb. A4-16. Embodiment 8 of the liquid storage container:

[0167] Fig. 37 is a diagram illustrating the liquid receiving containers 100g and 100h as Embodiment 8 of the liquid receiving container. As shown in Fig. 3 and Fig. 4, in the liquid containing container 100 in the first embodiment, the plurality of terminals 290 and the component 130 are arranged on the base member 120bd. The present disclosure is not limited to this. In the liquid containing container 100g, the plurality of terminals 290 and the component 130 are directly arranged on the second wall 101wr of the liquid containing body 101 without the interposition of the base member 120bd. The plurality of terminals 290 and the component 130 are electrically coupled to each other via a wiring pattern (not shown) or the like. As described above, the liquid containing body 101, the plurality of terminals 290, and the component 130 may be integrally configured as the liquid containing container 100g.

[0168] In the liquid containing container 100h, the plurality of terminals 290 are arranged directly on the second wall 101wr of the liquid containing body 101 without the interposition of the base member 120bd. The component 130 is arranged on a mounting base member 120h and is arranged on the second wall 101wr of the liquid containing body 101 via the mounting base member 120h. The plurality of terminals 290 and the component 130 are electrically coupled to each other via a wiring pattern (not shown) or the like. As described above, the liquid containing body 101 and the plurality of terminals 290 may be integrally configured as the liquid containing container 100h, and the component 130 may be configured separately. A4-17. Embodiment 9 of the liquid storage container:

[0169] Fig. 38 is a perspective view illustrating a liquid containing container 100z as Embodiment 9 of the liquid containing container. Fig. 39 is an enlarged view showing the periphery of the circuit board 120 of the liquid receiving container 100z. In Fig. 38 and Fig. 39 in Embodiment 9 are based on the state where the liquid storage container 100z is fully inserted into the storage area, which will be described later, in the printing apparatus. When the liquid storage container 100z is mounted in the printing apparatus, two mounting processes are performed. In the present embodiment, the first direction FD has a Y-direction component and a Z-direction component, and the second direction SD is the X direction. As shown in Fig. As shown in Fig. 38, the liquid accommodating container 100z includes a liquid accommodating body 101z, the liquid supply portion 104 having the liquid supply port 1040p, and the circuit board 120. The liquid accommodating body 101z includes a accommodating main body 101za capable of accommodating a liquid, and a cover member 101zb attached to the accommodating main body 101za. The liquid supply portion 104 is disposed at the opening portion 424 formed in the third wall 101wb of the liquid accommodating body 101z, which is formed by the cover member 101zb. The circuit board 120 is provided at a corner portion 89z where the second wall 101wr and the third wall 101wb of the liquid accommodating body 101z intersect each other. The corner portion 89z is a recessed portion of the liquid receiving body 101z which is recessed inward.

[0170] As in Fig. 39, the orientation of the board 120 differs from the orientation in Fig. 5 and the data terminal 210 and the reset terminal 240 are located on the -Z direction side of the clock terminal 220, the power source terminal 230 and the ground terminal 250.

[0171] Fig. 40 is a first diagram illustrating a flow of mounting the liquid receiving container 100z to a receiving portion 4z of the printing apparatus. Fig. 41 is a second diagram illustrating the process of mounting the liquid receiving container 100z to the receiving portion 4z of the printing apparatus. Fig. 42 is a diagram illustrating the assembly-completed state of the liquid accommodating container 100z. The accommodating portion 4z is disposed at a different location from the print head (not shown). The accommodating portion 4z and the print head communicate with each other via a liquid flow tube (not shown). The liquid in the liquid accommodating container 100z mounted on the accommodating portion 4z is supplied to the print head through the liquid flow tube.

[0172] As in Fig. 40, with respect to the liquid accommodating container 100z, the liquid accommodating container 100z is inserted into a mounting chamber 65 in the accommodating portion 4z via an attachment / detachment opening portion 474 of the accommodating portion 4z by moving the liquid accommodating container 100z in a first mounting direction MD1, which is a horizontal direction. The first mounting direction MD1 is the -Y direction.

[0173] As in Fig. 41, the liquid receiving container 100z is pressed in the first mounting direction MD1, and the contact between the device-side terminal 490 of the coupling mechanism 400 in the receiving area 4z and the terminal 290 of the circuit board 120 is completed. By pressing down the side of the second wall 101wr of the liquid receiving container 100z, which is in Fig. As shown in Fig. 41, the liquid storage container 100z rotates and moves in a second mounting direction MD2 having a gravity direction component around a pivot point Rp provided in the storage area 4z. The second mounting direction MD2 has a +Z direction component and a +Y direction component.

[0174] As in Fig.42, the liquid supply portion 104 of the liquid receiving container 100z is coupled to the liquid introduction portion 6 of the receiving area 4z when the rotational movement of the liquid receiving container 100z in the second mounting direction MD2 is completed. In the present embodiment, both the first mounting direction MD1 and the second mounting direction MD2 are the mounting direction MD. A4-18. Embodiment 10 of the liquid storage container:

[0175] In the first embodiment and other embodiments, the liquid storage container 100 is an ink cartridge, but the present disclosure is not limited thereto. The liquid storage container 100 may be, for example, a waste liquid storage container. The waste liquid storage container is, for example, a container that stores a waste liquid ejected from the nozzle of the print head 5 when the printing device 20 performs cleaning of the print head 5. A4-19. Printing system embodiment 1:

[0176] The printing system in the present disclosure is not limited to that in Fig. 1 shown printing system 1000. Fig. 43 is a diagram illustrating a printing system 1000A as Embodiment 1 of the printing system. In the first embodiment, as shown in Fig. 1, a configuration referred to as carriage-mounted, in which the liquid containing container 100 is mounted on the carriage 30, is employed, but the present disclosure is not limited thereto. A configuration referred to as carriage-remote, in which the liquid containing container 100 is mounted at a location other than the carriage 30, may be employed. The printing system 100A is a carriage-remote type printing system and includes a printing device 20A and a liquid containing container 100T. The printing device 20A includes the carriage 30 having the print head 5. The liquid containing container 100T is detachably mounted to a container mounting portion 600 disposed at a location different from the carriage 30.Similar to the liquid storage container 100 in the first embodiment, the liquid storage container 100T also includes a liquid storage body, a liquid storage portion having an ink supply port, and a circuit board. For example, the liquid storage containers 100q to 100x shown in FIG. Fig. 30 to 35 are mounted in the printing device 20A. The printing device 20A performs the coupling state determination processing in a manner analogous to the printing device 20. A4-20. Printing system embodiment 2:

[0177] Fig. 44 is a diagram illustrating a printing system 1000C as Embodiment 2 of the printing system. In the first embodiment, as shown in Fig. 1, the receiving area 4, on which the liquid receiving container 100 is detachably mounted, is arranged in the main body of the printing device 20, but the position of the receiving area 4 is not limited thereto. In the printing system 1000C shown in Fig. 44, a receiving area 4C of the printing device 20C is arranged outside a main body 201 of the printing device 20C. As shown in Fig. 7A to 7C, the accommodating area 4C includes the liquid introduction section 6, the coupling mechanism 400, and the sub-control board 500. The liquid introduction section 6 and the print head 5, which are arranged in the main body 201, communicate with each other via a flexible liquid flow tube 105. A plurality of liquid flow tubes 105 are provided corresponding to the number of liquid introduction sections 6. The plurality of liquid flow tubes 105 are accommodated in a protective tube 106. The printing device 20C includes a bus 107 that couples the sub-control board 500 to the main control unit 40 (not shown) located in the main body 201 to transmit and receive various signals. Analogous to the liquid accommodating container 100 in the first embodiment described above, the one shown in Fig. 44 also includes a liquid receiving body, a liquid supply portion having a liquid supply port, and a circuit board. The printing device 20C performs the coupling state determination processing in a manner analogous to the printing device 20. A4-21. Printing system embodiment 3:

[0178] Fig. Fig. 45 is a diagram illustrating a printing system 1000D as Embodiment 3 of the printing system. The printing system 1000D includes, as in the first embodiment, the four liquid receiving containers 100A, 100B, 100C, 100D and the printing device 20 shown in Fig. 1. The liquid receptacles 100A to 100D may be integrally formed or individually formed. The liquid receptacles 100A to 100D are refilled with liquids via an external liquid storage section 814 and an external liquid flow tube 812 arranged outside the printing system 1000D. In Fig. 45, in the liquid storage section 814 and the liquid flow pipe 812, the elements corresponding to the respective liquid receiving containers 100A to 100D are provided with the appended letters “A” to “D”. A4-22. Printing system embodiment 4:

[0179] Fig. 46 is a diagram illustrating a printing system 1000E as Embodiment 4 of the printing system. The printing system 1000E includes an adapter 101E having the circuit board 120, a liquid receiving body 824 capable of receiving a liquid, a liquid flow pipe 822, and the printing device 20 shown in Fig. 1. The adapter 101E can be detachably mounted on the receiving portion 4. The liquid flow tube 822 couples the liquid receiving body 824 and the liquid introduction portion 6 and functions as a liquid supply portion. A portion of the liquid flow tube 822 coupled to the liquid introduction portion 6 functions as a liquid supply port. Four adapters 101E, four liquid flow tubes 822, and four liquid receiving bodies 824 are provided. In the printing system 1000E, the "assembly completed state" refers to a state in which the adapter 101E is assembled with the circuit board 120 in the printing device 20, and no short circuit occurs between the terminals 290.In the present embodiment, the sentence "the circuit board 120 is mounted in the printing device 20" means that the circuit board 120 is physically attached to the printing device 20, and the contact portions cp of the terminals 290 are electrically coupled to the device-side terminals 490. The data terminal 210 of the circuit board 120 is used to detect whether or not the circuit board 120 is mounted in the printing device 20. The mounting determination unit 412 of the printing device 20 determines whether or not the circuit board 120 is mounted. The first response signal RT1 and the second response signal RT2 are signals used when the printing device 20 determines that the circuit board 120 is mounted in the printing device 20. A4-23. Other embodiments for the electrical configuration and the software configuration

[0180] In the first embodiment, as shown in Fig. 1, the four liquid storage containers 100A to 100D are detachably mounted on the storage area 4, but the number of liquid storage containers 100 detachably mounted on the storage area 4 is not limited thereto. A timing chart of the coupling state determination processing in the printing system 1000 in which six liquid storage containers 100 are detachably mounted on the storage area 4 is described with reference to Fig. 47A and Fig. 47B below. The six liquid receptacles 100 hold, for example, inks of different colors. Fig. 47A and Fig. 47B are timing charts schematically illustrating signals input to / output from the terminals 290 of the liquid receiving container 100 in the assembly-completed state. Fig. 47A is a first timing diagram in the printing system 1000 having six liquid receiving containers 100A to 100F. Fig. 47B is a second timing diagram in the printing system 1000 having six liquid receiving containers 100A to 100F. Fig. 47A is a diagram showing Fig. 11A, and Fig. 47B is a diagram showing Fig. 11B. VDD, RST, SCK and SDA1 to SDA6, which are Fig. 47A to 47B indicate signals transmitted to or received through the corresponding terminals 290, or voltages supplied from the corresponding lines LVDD, LRST, LSCK, and LSDA1 to LSDA6.

[0181] The request signal RS, which is Fig. 47A, differs from the request signal RS shown in Fig. 11A shows that bits of cycles D4 and D3 in the instruction period CMT, which are in Fig. 47A, to designate the fifth liquid storage container 100E and the sixth liquid storage container 100F. With respect to the request signal RS transmitted via the data line LDSA5 coupled to a device 130E of the liquid storage container 100E, the second bit of the first identification data DB1 is at a high level, and the remaining bits are at a low level. For the request signal RS transmitted via the data line LDSA6 coupled to a device 130F of the liquid storage container 100F, the first bit of the first identification data DB1 is at a high level, and the remaining bits are at a low level.

[0182] The time diagram shown in Fig. 47B differs from the timing diagram shown in Fig. 11B, waveforms of the first response signal FS and the second response signal SS corresponding to the liquid storage containers 100E and 100F are added. The device 130E of the liquid storage container 100E outputs the first response signal FS to the data terminal 210 in cycle D4 of the first response period RT1 and outputs the second response signal SS to the data terminal 210 in cycle D4 of the second response period RT2. The device 130F of the liquid storage container 100F outputs the first response signal FS to the data terminal 210 in cycle D3 of the first response period RT1 and outputs the second response signal SS to the data terminal 210 in cycle D3 of the second response period RT2.

[0183] Fig. 48 is a schematic diagram illustrating the electrical configuration of a printing system 1000 having the six liquid receiving containers 100A to 100F. In Fig. 48 are the components that are analogous to the components in the electrical configuration shown in Fig. 8 are designated by the same reference numerals and a description thereof is omitted accordingly. The electrical configuration in Fig. 48 differs from the electrical configuration in Fig. 8, that the lines LSDA, LRST, LSCK, and LVDD except the ground line LVSS correspond to the four liquid storage tanks 100A to 100D in Fig. 8 are provided independently, but the lines LRST, LSCK and LVDD except the data line LSDA are provided jointly by a plurality of components 130 in Fig. 48. The ground wire LVSS is also used in Fig. 48 is used jointly by the components 130A to 130F of the six liquid receiving containers 100A to 100F.

[0184] As in Fig. 48, a power source line LVDD2, electrically coupled to a host terminal HVDD2 of the slave control unit 50, is electrically coupled to the two devices 130B and 130E in the assembly-completed state. A reset line LRST2, electrically coupled to a host terminal HRST2 of the slave control unit 50, is electrically coupled to the two devices 130B and 130C in the assembly-completed state. A clock line LSCK2, electrically coupled to a host terminal HSCK2 of the slave control unit 50, is electrically coupled to the two devices 130B and 130D in the assembly-completed state. A power source line LVDD4, which is electrically coupled to a host terminal HVDD4 of the sub-control unit 50, is electrically coupled to the two devices 130C and 130D in the assembly-completed state.A reset line LRST4, electrically coupled to a host terminal HRST4 of the slave control unit 50, is electrically coupled to the two devices 130D and 130E in the assembly-completed state. A clock line LSCK4, electrically coupled to a host terminal HSCK4 of the slave control unit 50, is electrically coupled to the two devices 130C and 130E in the assembly-completed state. The lines LSDA1, LVDD1, LRST1, and LSCK1 are electrically coupled to the device 130A, and the lines LSDA6, LVDD6 and LRST6, LSCK6, electrically coupled to the device 130F, are used independently without being used in combination with other devices 130D and 130E.

[0185] Regarding the electrical configuration of the printing system 1000, which is Fig. 48, parts of this configuration, such as the common lines, can be applied to the printing system 1000 shown in Fig. 1, which has the four liquid receiving containers 100A to 100D. For example, the liquid receiving containers 100B to 100E shown in Fig. 48, by the liquid receiving containers 100A to 100D of the printing system 1000, which is shown in Fig. 1. For example, the liquid receiving containers 100A, 100B, 100E and 100F shown in Fig. 48, by the liquid receiving containers 100A to 100D of the printing system 1000, which is shown in Fig. 1 shown. A4-24. Embodiment 1 for the component:

[0186] As in Fig. 6, the device 130 in the first embodiment includes the processing unit 136 and the storage unit 138, but the present disclosure is not limited thereto. Fig. 49 is a diagram illustrating devices 130a and 130b as Embodiment 1 for device 130. Device 130a includes processing unit 136 but does not include memory unit 138. Memory unit 138 and device 130 may be provided separately. In this case, memory unit 138 is electrically coupled to processing unit 136 of device 130b. Device 130b includes a first processing unit 136a, a second processing unit 136b, and memory unit 138. First processing unit 136a is coupled to memory unit 138. Second processing unit 136b is coupled to first processing unit 136a and terminals 210 to 250. In such a form, the first processing unit 136a and the second processing unit 136b function together as the processing unit.As described above, the device 130b may include a plurality of processing units 136a and 136b. A4-25. Embodiment 2 for the component:

[0187] As in Fig. 11C, in the first embodiment, the first response signal FS is output during the entire period in which the clock signal SCK is at a high level, but the present disclosure is not limited to this. For example, the device 130 may output the first response signal FS to the data terminal 210 in a portion of the period in which the clock signal SCK is at a high level. For example, in the period in which the clock signal SCK is at a high level, the device 130 may output the first response signal FS and then set the drive state of the data terminal 210 to the high resistance. For example, in the period in which the clock signal SCK is at a low level and in the period in which the clock signal SCK is at a high level, the device 130 may output the first response signal FS containing a low level in one cycle of the clock signal SCK. A4-26. Embodiment 3 for the component:

[0188] In the first embodiment, the frequency of the clock signal SCK is constant in the coupling state determination processing, as shown in the Fig. 11A to 11B, but it does not have to be constant. For example, the frequency of the clock signal SCK in the second response period RT2 may be set lower than the frequency of the clock signal SCK in the first response period RT1. The second response signal SS has different voltages. In the second response period RT2, the frequency of the clock signal SCK may be set lower than the frequency in the first response period RT1, and the second response signal SS may be output in a period longer than a period for the first response signal FS. A4-27. Embodiment 4 for the component:

[0189] In the first embodiment, the processing unit 136 of the device 130 may repeatedly output the first response signal FS and the second response signal SS in such a manner that the first response period RT1 FS and the second response period RT2 are repeatedly provided in this order during a period in which the reset signal RST is at a high level. When the processing unit 136 outputs a low voltage to the data terminal 210 in the second response signal SS and the request signal RS is then input to the data terminal 210 again, the processing unit 136 of the device 130 may output the first response signal FS and the second response signal SS to the data terminal 210. A4-28. Embodiment 5 for the component:

[0190] As in Fig.11B, in the first embodiment, timings of the rising edge and the falling edge of the clock signal SCK are the same as the rising edge and the falling edge of the signal such as the first response signal FS in the first response period RT1 and the signal such as the second response signal SS in the second response period RT2. The present disclosure is not limited to this. For example, the timings of the rising edge and the falling edge of the signal such as the first response signal FS in the first response period RT1 and the signal such as the second response signal SS in the second response period RT2 may be delayed from the timings of the rising edge and the falling edge of the clock signal SCK. A4-29. Embodiment 6 for the component:

[0191] In the first embodiment, the processing units 136A to 136D of the devices 130A to 130D output the first response signal FS and the second response signal SS to the data terminal 210 at different cycles of the clock signal SCK. The present disclosure is not limited to this. For example, the processing units 136A to 136D of the devices 130A to 130D may output the first response signal FS and the second response signal SS in the same cycle of the clock signal SCK. In the coupling state determination processing, the printing device 20 transmits and receives signals via the individual data lines LSDA1 to LSDA4, which are electrically coupled to the devices 130A to 130D, respectively.Therefore, the sub-control unit 50 of the printing device 20 is capable of detecting the voltage output from the data terminal 210 at each of the first time point t1 to the third time point t3, even though the first response signal FS and the second response signal SS are output from the devices 130A to 130D to the data terminal 210 in the same cycle in the first response period RT1 and the second response period RT2. In this case, the request signal RS at the corresponding bit is set to a high level in the command period CMT.

[0192] For example, the processing units 136A to 136D of the devices 130A to 130D may output the first response signal FS and the second response signal SS to the data terminal 210 in all or any of the cycles D3 to D8 of the first response period RT1 and the second response period RT2. In this case, the first time t1 may be provided in all or any of the cycles D3 to D8 of the first response period RT1. The second time t2 and the third time t3 may be provided in all or any of the cycles D3 to D8 of the second response period RT2. A4-30. Embodiment 7 for the component:

[0193] In the first embodiment, the processing units 136A to 136D of the devices 130A to 130D output the first response signal FS and the second response signal SS to the data terminal 210 in cycles D8 to D5 of the first response period. The present disclosure is not limited to this. For example, the processing units 136A to 136D of the devices 130A to 130D may output the first response signal FS and the second response signal SS to the data terminal 210 in cycles D5 to D8 of the first response period. In this case, the request signal RS at the corresponding bit is set to a high level in the command period CMT. A4-31. Embodiment 8 for the device:

[0194] In the first embodiment, the device 130 is configured such that the request signal RS is input to the data terminal 210, and the first response signal FS and the second response signal SS are output to the data terminal 210. The terminal to which the request signal RS is input may be a different terminal than the data terminal 210. Similarly, the terminal that outputs the first response signal FS and the second response signal SS may be a different terminal than the data terminal 210. In this case, the device 130 is coupled to such a terminal. B. Other embodiments:

[0195] The present disclosure is not limited to the above-mentioned embodiments and may be implemented in various configurations without departing from the scope of the invention as defined by the claims. For example, the technical features in the embodiments corresponding to the technical features in each of the forms described below may be appropriately replaced and combined to solve some or all of the above-mentioned problems or to achieve some or all of the above-mentioned objects. Furthermore, the technical features may be appropriately deleted as long as the technical features are not described as essential in this disclosure. Each form below does not need to have all the configurations in the present disclosure. Each form below may have a minimum configuration to solve the above-mentioned problems or achieve the above-mentioned objects.Unless otherwise stated, the effect corresponding to one form is independent of the effect corresponding to the other form. The combined form has the effect corresponding to the combined form.

[0196] 1. According to a first aspect of the present disclosure, a circuit board is provided that is mounted in a printing device and is configured to come into contact with a plurality of device-side terminals. The printing device includes a print head, a liquid introduction portion that introduces a liquid into the print head, a receiving portion that receives a liquid receiving container and is provided with the liquid introduction portion, and the plurality of device-side terminals provided on the receiving portion. The circuit board includes a base member, a component provided on the base member, and a plurality of terminals provided on the base member. The plurality of terminals includes at least a first terminal, a second terminal, a third terminal,a fourth terminal and a fifth terminal. The first terminal is coupled to the component and has a first contact portion intended to come into contact with a corresponding first device-side terminal from the plurality of device-side terminals. The second terminal is coupled to the component and has a second contact portion intended to come into contact with a corresponding second device-side terminal from the plurality of device-side terminals. The third terminal is coupled to the component and has a third contact portion intended to come into contact with a corresponding third device-side terminal from the plurality of device-side terminals. The fourth terminal is coupled to the component and has a fourth contact portion.which is to come into contact with a corresponding fourth device-side terminal from the plurality of device-side terminals, and the fifth terminal is coupled to the component and has a fifth contact portion which is to come into contact with a corresponding fifth device-side terminal from the plurality of device-side terminals. The first terminal is used to detect whether or not the first terminal has a short circuit with the second terminal and / or the third terminal and / or the fourth terminal. In a plan view, when two orthogonal straight lines are set as the first virtual line and the second virtual line, and all contact portions of all terminals provided on the base member are projected onto the second virtual line,all contact portions are projected at different positions, and the first virtual line passes through a center between two projection positions that are farthest apart from each other among projection positions of all contact portions. When one area is set as the first area with respect to the first virtual line and the other area is set as the second area, some contact portions among all contact portions are arranged in the first area, remaining contact portions are arranged in the second area, the some contact portions include the first contact portion, the second contact portion, the third contact portion, and the fourth contact portion, and the remaining contact portions include the fifth contact portion. The some contact portions and the remaining contact portions are arranged asymmetrically with respect to the first virtual line.

[0197] Foreign matter tends to accumulate at the contact portion of the terminal. For example, foreign matter may get caught between the device-side terminal and the terminal. For example, if the terminal of the circuit board is arranged on a plane having the gravity direction component, and foreign matter enters the circuit board from the top side in the gravity direction, the foreign matter may adhere and remain in the contact portion of the terminal. For example, if the foreign matter is a liquid, the liquid tends to accumulate at the contact portion of the terminal due to an influence of capillary force. Thus, by defining the arrangement of the contact portion of the terminal rather than the arrangement of the terminal, it is possible to suppress a possibility of a short circuit occurring regardless of the area, shape, and the like of the terminal.In the present aspect, in the circuit board, the first contact portion, the second contact portion, the third contact portion, and the fourth contact portion are arranged in the first region, and a fifth contact portion, which is particularly desirable not to short-circuit with another contact portion, is arranged in the second region. By arranging the contact portions in this manner, it is possible to suppress the possibility of a short circuit occurring including the fifth contact portion. This is because the fifth contact portion is separated from the contact portions of the other terminals and the distance from the other contact portions is ensured. Thus, it is possible to suppress the possibility of a short circuit occurring between the fifth contact portion and the other contact portion.Although foreign matter tends to accumulate near the contact portion, since the distance between the fifth contact portion and the other contact portions is ensured, the foreign matter accumulated at the fifth contact portion is less likely to reach the contact portions of the other terminals compared to a case where the fifth contact portion and the other contact portions are arranged at a short distance. Furthermore, foreign matter accumulated in the first contact portion to the fourth contact portion is less likely to reach the contact portion of the fifth terminal. This is similar regardless of the surface area or shape of the terminal. Examples of the foreign matter include conductive liquids such as ink and pet urine, and conductive solids such as wires, staples, and mechanical pencil leads.Regardless of the degree of possibility that the foreign matter actually appears, there is a possibility of a short circuit occurring due to the foreign matter, unless the possibility is zero. In the present aspect, it is possible to prevent such a possibility.

[0198] Among the plurality of terminals, there is one contact portion that is desired to be located away from the other contact portions to prevent a short circuit from occurring between the terminals. When the fifth contact portion is set as the contact portion that is desired to be separated, the first to fourth contact portions in the first region are arranged on one side of the first virtual line, and the fifth contact portion is arranged in the second region on the other side of the line. That is, the contact portions in the first region and the contact portion in the second region are arranged on the base member to be asymmetrical with respect to the first virtual line.

[0199] In the present aspect, all the contact portions are arranged to be projected at different positions in the direction along the second virtual line. When the direction of the first virtual line includes the mounting direction and foreign matter is provided, the foreign matter is drawn in from the device-side terminal during the process of mounting the liquid storage container in the printing device, thus creating a possibility of a short circuit occurring between the terminals. By arranging all the contact portions on the base member so that all the contact portions are projected at different positions when all the contact portions are projected onto the second virtual line, it is possible to suppress the possibility of a short circuit occurring.When focusing on the first contact portion, no contact portion except the first contact portion is located on a straight line along the first virtual line passing through the first contact portion. All contact portions except the first contact portion are separated from the first contact portion in the direction along the second virtual line. Such a positional relationship applies analogously to the contact portions except the first contact portion. Therefore, the probability of a short circuit occurring in the direction including the direction along the second virtual line is higher than the probability of a short circuit occurring in the direction along the first virtual line. By defining the arrangement of the contact portions in the direction along the second virtual line, it is possible to suppress the possibility of a short circuit occurring.Alternatively, by arranging all contact portions on the base member to be projected at different positions on the second virtual line, it is possible to ensure the gap between the contact portions in the direction along the second virtual line on the base member. Therefore, it is possible to prevent the possibility of a short circuit occurring between the terminals.

[0200] 2. In the above aspect, at least one of the second contact portion, the third contact portion, and the fourth contact portion may be arranged to project between a projection position of the first contact portion and a projection position of the fifth contact portion. According to this aspect, since at least one of the second contact portion, the third contact portion, and the fourth contact portion is arranged to project between the projection position of the first contact portion and the projection position of the fifth contact portion, a predetermined gap is created between the first contact portion and the fifth contact portion in the direction along the second virtual line.Thus, it is possible to set the first contact portion and the fifth contact portion to be relatively separated in the direction along the second virtual line, and thus it is possible to suppress the possibility of occurrence of a short circuit between the first terminal and the fifth terminal.

[0201] 3. In the above aspect, any two or more of the second contact portion, the third contact portion, and the fourth contact portion may be arranged to be projected between a projection position of the first contact portion and a projection position of the fifth contact portion. According to this aspect, two or more of the other contact portions are arranged between the projection positions of the first contact portion and the fifth contact portion on the second virtual line, so that a predetermined gap is created between the first contact portion and the fifth contact portion in the direction along the second virtual line.Thus, it is possible to set the first contact portion and the fifth contact portion to be relatively separated in the direction along the second virtual line, and thus it is possible to suppress the possibility of occurrence of a short circuit between the first terminal and the fifth terminal to a greater extent.

[0202] 4. In the above aspect, the first contact portion may be arranged to project between the projection positions of any two contact portions among the second contact portion, the third contact portion, and the fourth contact portion. According to this aspect, the first contact portion is arranged to project between the projection positions of any two contact portions among the second contact portion, the third contact portion, and the fourth contact portion, so that a predetermined gap is created between the contact portions arranged to sandwich the first contact portion in the direction along the second virtual line.Thus, it is possible to set the contact portions to be relatively separated in the direction along the second virtual line, and thus it is possible to suppress the possibility of occurrence of a short circuit between the terminals having such contact portions to a greater extent.

[0203] 5. In the above aspect, the first contact portion may be a data contact portion, and the first terminal may be a data terminal. The second contact portion may be a clock contact portion, and the second terminal may be a clock terminal. The third contact portion may be a reset contact portion, and the third terminal may be a reset terminal. The fourth contact portion may be a power source contact portion, and the fourth terminal may be a power source terminal. The fifth contact portion may be a ground contact portion, and the fifth terminal may be a ground terminal. According to this aspect, it is possible to suppress a possibility of occurrence of a short circuit of the ground terminal with the data terminal, the clock terminal, the reset terminal, and the power source terminal.

[0204] 6. In the above aspect, the data contact portion and / or the reset contact portion may be arranged to be projected between a projection position of the power source contact portion and a projection position of the clock contact portion, and the reset contact portion may be arranged to have a projection position adjacent to the projection position of the power source contact portion. A period in which the clock signal is at a low level is longer than a period in which the reset signal is at a low level. That is, a stress applied to the device when the power source terminal and the clock terminal are short-circuited is greater than a stress applied to the board when the power source terminal and the reset terminal are short-circuited.Thus, it is preferable to suppress the occurrence of a short circuit between the power source terminal and the clock terminal rather than the occurrence of a short circuit between the power source terminal and the reset terminal. According to this aspect, a predetermined gap is created between the power source contact portion and the clock contact portion in the direction along the second virtual line. Consequently, it is possible to set the power source contact portion and the clock contact portion to be relatively separated in the direction along the second virtual line, and thus it is possible to more effectively suppress the possibility of a short circuit occurring between the power source terminal and the clock terminal. It is possible to relatively suppress the stress applied to the board when a short circuit occurs.

[0205] 7. In the above aspect, the power source contact portion may be arranged to have a projection position adjacent to the projection position of the data contact portion. According to this aspect, the driving power of the power source terminal is higher than the driving power of the data terminal. When the data terminal is short-circuited with the power source terminal, the voltage of the data terminal tends to increase. By using the contact portion adjacent to the data contact portion as the power source contact portion in the direction along the second virtual line, it is possible to quickly detect the occurrence of a short circuit even when the data terminal and the power source terminal are short-circuited.

[0206] 8. In the above aspect, the clock contact portion may be arranged to be projected at a position farthest from the projection position of the ground contact portion, and the data contact portion, the power source contact portion, and the reset contact portion may be arranged to be projected in sequence in a direction from the projection position of the clock contact portion toward the projection position of the ground contact portion on the second virtual line. According to this aspect, the above-described effect is achieved.

[0207] 9. In the above aspect, a distance between the data contact portion and the ground contact portion may be longer than a distance between the data contact portion and the clock contact portion. According to this aspect, it is possible to suppress the possibility of a short circuit occurring between the data terminal and the ground terminal, rather than the possibility of a less damaging short circuit occurring between the data terminal and the clock terminal.

[0208] 10. In the above aspect, the distance between the data contact portion and the ground contact portion may be longer than the distance between the data contact portion and the reset contact portion. According to this aspect, it is possible to suppress the possibility of a short circuit occurring between the data terminal and the ground terminal, rather than the possibility of a less undesirable short circuit occurring between the data terminal and the reset terminal.

[0209] 11. In the above aspect, the distance between the data contact portion and the ground contact portion may be longer than the distance between the data contact portion and the power source contact portion. According to this aspect, it is possible to prevent the possibility of a short circuit occurring between the data terminal and the ground terminal, rather than the possibility of a short circuit occurring between the data terminal and the power source terminal, which is easier to detect.

[0210] 12. In the above aspect, when a gap of a contact portion projected at a position farthest from a projection position of the ground contact portion when projected onto the second virtual line among contact portions other than the ground contact portion in the first region from the ground contact portion provided in the second region in a direction along the second virtual line is set as Wa, a gap of a contact portion projected at a position closest to the projection position of the ground contact portion when projected onto the second virtual line among contact portions other than the ground contact portion in the first region from the ground contact portion provided in the second region in the direction along the second virtual line may be equal to or larger than Wa / 2.According to this aspect, it is possible to maintain a gap of Wa / 2 or more between the contact portion closest to the ground contact portion in the first region and the ground contact portion in the direction along the second line. Thus, it is possible to suppress the possibility of a short circuit occurring between the ground terminal and the terminal other than the ground terminal.

[0211] 13. In the above aspect, no other contact portion may be present between a contact portion projected at a position closest to a projection position of the ground contact portion when projected onto the second virtual line among contact portions other than the ground contact portion in the first region and the ground contact portion provided in the second region. According to this aspect, since no other contact portion is present between the contact portion closest to the ground contact portion in the first region and the ground contact portion, it is possible to suppress the possibility of a short circuit occurring between the ground terminal and the terminal other than the ground terminal.

[0212] 14. In the above aspect, there may be no other contact portion on a virtual line segment connecting the data contact portion and the clock contact portion. According to this aspect, even if the data terminal and the clock terminal are short-circuited, it is possible to detect the occurrence of a short circuit early.

[0213] 15. In the above aspect, there may be no other contact portion on a virtual line segment connecting the data contact portion and the reset contact portion. According to this aspect, even if the data terminal and the reset terminal are short-circuited, it is possible to detect the occurrence of a short circuit early.

[0214] 16. In the above aspect, there may be no other contact portion on a virtual line segment connecting the data contact portion and the power source contact portion. According to this aspect, even if the data terminal and the power source terminal are short-circuited, it is possible to detect the occurrence of a short circuit early.

[0215] 17. In the above aspect, when the board can be mounted in a direction along a gravity direction, the clock contact portion, the power source contact portion, and the reset contact portion may be arranged farther in the gravity direction than the data contact portion, and at least one of the clock contact portion, the power source contact portion, and the reset contact portion may be arranged to project between a projection position of the data contact portion and a projection position of the ground contact portion. According to this aspect, when a foreign matter such as a highly conductive liquid falls in the gravity direction before the data terminal and the ground terminal are short-circuited, the data terminal is short-circuited with any of the terminals having the plurality of contact portions other than the data contact portion.Thus, it is possible to detect the occurrence of a short circuit between the data terminal and the terminal with the other contact section and to prevent the possibility of a short circuit occurring between the data terminal and the ground terminal.

[0216] 18. In the above aspect, the clock contact portion, the data contact portion, the power source contact portion, the reset contact portion, and the ground contact portion can be arranged to form a plurality of rows. According to this aspect, it is possible to arrange the contact portions in a limited area with high efficiency.

[0217] 19. In the above aspect, the plurality of rows may comprise two rows, and two contact portions on the base member that are projected to be adjacent to each other when projected onto the second virtual line may form different rows. According to this aspect, it is possible to arrange the contact portions in a limited area with high efficiency.

[0218] 20. In the above aspect, the data contact portion and the ground contact portion may be arranged in different rows, and the clock contact portion, the power source contact portion, or the reset contact portion may be arranged to project between a projection position of the data contact portion and a projection position of the ground contact portion. According to this aspect, by arranging the ground contact portion and the data contact portion in different rows and disposing another contact portion between the ground contact portion and the data contact portion, it is possible to suppress the possibility of a short circuit occurring between the data terminal and the power source terminal. Even if the data terminal is short-circuited with the terminal having the other contact portion, it is possible to easily detect the occurrence of a short circuit.

[0219] 21. In the above aspect, the first terminal can be further used to detect whether the circuit board is mounted in the printing device. According to this aspect, it is possible to detect whether the circuit board is mounted in the printing device using the first terminal.

[0220] 22. In the above aspect, the fifth terminal may be a ground terminal, and voltages supplied to the first terminal, the second terminal, the third terminal, and the fourth terminal may be configured to be received by the device. The voltage that the device is enabled to receive refers to, for example, a voltage lower than a voltage used to drive the print head, a voltage as high as the power source voltage, a voltage lower than the withstand voltage of the device, a voltage at which the device will not break down, or a voltage at which the device will not malfunction.According to this aspect, by inputting the voltage that the component is allowed to receive, it is possible for the printing device to detect the occurrence of a short circuit even when the short circuit occurs between at least some terminals, while realizing the suppression of a possibility that the component is broken and a possibility of a malfunction.

[0221] 23. In the above aspect, the first virtual line may be directed along a direction having a component of a mounting direction in which the board is mounted in the printing apparatus.

[0222] 24. In the above aspect, a voltage supplied to the fourth terminal may be used to drive the device.

[0223] 25. In the above aspect, the component may output signals indicating that the first terminal is not short-circuited with the terminal other than the first terminal among the plurality of terminals and that the board is mounted in the printing apparatus.

[0224] 26. In the above aspect, the device may store information regarding a liquid held in the liquid holding container.

[0225] 27. According to a second aspect of the present disclosure, there is provided a circuit board mounted in a printing device and configured to come into contact with a plurality of device-side terminals. The printing device includes a print head, a liquid introduction portion that introduces a liquid into the print head, a receiving portion that accommodates a liquid receiving container and is provided with the liquid introduction portion, and the plurality of device-side terminals provided on the receiving portion. The circuit board includes a base member, a component provided on the base member, and a plurality of terminals provided on the base member.The plurality of terminals comprise a first terminal coupled to the component and having a first contact portion intended to come into contact with a corresponding first device-side terminal of the plurality of device-side terminals, and another terminal group. The other terminal group comprises at least a second terminal coupled to the component and having a second contact portion intended to come into contact with a corresponding second device-side terminal of the plurality of device-side terminals, and a third terminal coupled to the component and having a third contact portion intended to come into contact with a corresponding third device-side terminal of the plurality of device-side terminals.The second terminal is used to detect whether or not the second terminal is short-circuited with at least one of the terminals other than the second terminal in the other terminal group. In a plan view, when two orthogonal straight lines are set as the first virtual line and the second virtual line, and all contact portions of all terminals provided on the base member are projected onto the second virtual line, all contact portions are projected at different positions, and the first virtual line passes through a center between two projection positions farthest from each other among projection positions of all contact portions.When one region is set as the first region with respect to the first virtual line and the other region is set as the second region, some contact portions are arranged among all the contact portions in the first region, the remaining contact portions are arranged in the second region, the some contact portions include the second contact portion and the third contact portion, and the remaining contact portions include the first contact portion. The some contact portions and the remaining contact portions are arranged asymmetrically with respect to the first virtual line.

[0226] Foreign matter tends to accumulate at the contact portion of the terminal. For example, foreign matter may get caught between the device-side terminal and the terminal. For example, if the terminal of the circuit board is arranged on a plane having the gravity direction component, and foreign matter enters the circuit board from the top side in the gravity direction, the foreign matter may adhere and remain in the contact portion of the terminal. For example, if the foreign matter is a liquid, the liquid tends to accumulate at the contact portion of the terminal due to an influence of capillary force. Thus, by defining the arrangement of the contact portion of the terminal rather than the arrangement of the terminal, it is possible to suppress a possibility of a short circuit occurring regardless of the area, shape, and the like of the terminal.In the present aspect, in the circuit board, the second contact portion and the third contact portion are provided in the first region, and the first contact portion, which is particularly desirable not to short-circuit with some contact portions, is arranged in the second region. By arranging the contact portions in this way, it is possible to suppress the possibility of a short circuit occurring. This is because the first contact portion is separated from the contact portions of the other terminals and the distance from the other contact portions is ensured. Thus, it is possible to suppress the possibility of a short circuit occurring between the first contact portion and the other contact portion.Although foreign matter tends to accumulate near the contact portion, compared to a case where the first contact portion and the other contact portions are arranged at a short distance, the foreign matter accumulated at the first contact portion is less likely to reach the other terminals because the distance between the first contact portion and the other contact portion is ensured. Furthermore, foreign matter accumulated in the second contact portion and the third contact portion is less likely to reach the first terminal. This is similar regardless of the surface area or shape of the terminal.

[0227] In the present aspect, the other terminal group may include at least the second terminal and the third terminal. For example, if the other terminal group includes only the second terminal and the third terminal, it is possible to reduce the number of contact portions on the base member. It is possible to increase the degree of freedom in the arrangement of the contact portions on the base member and to further suppress the possibility of a short circuit occurring between the terminals.

[0228] Among the plurality of terminals, there is a contact portion that is desired to be separated from other contact portions to prevent a short circuit from occurring between the terminals. When the first contact portion is set as the contact portion that is desired to be separated, the second contact portion and the third contact portion are arranged in the first region on one side of the first virtual line, and the first contact portion is arranged in the second region on the other side of the line. That is, the contact portions in the first region and the contact portion in the second region are arranged on the base member to be asymmetrical with respect to the first virtual line.

[0229] In the present aspect, all the contact portions are arranged to be projected at different positions in the direction along the second virtual line. When the direction of the first virtual line includes the mounting direction and foreign matter is provided, the foreign matter is drawn in from the device-side terminal during the process of mounting the liquid storage container in the printing device, thus creating a possibility of a short circuit occurring between the terminals. By arranging all the contact portions on the base member so that all the contact portions are projected at different positions when all the contact portions are projected onto the second virtual line, it is possible to suppress the possibility of a short circuit occurring.When focusing on the first contact portion, no contact portion other than the first contact portion is located on a straight line along the first virtual line passing through the first contact portion. The contact portions other than the first contact portion are separated from the first contact portion in the direction along the second virtual line. Such a positional relationship analogously applies to the contact portions other than the first contact portion. Therefore, the probability of a short circuit occurring in the direction including the direction along the second virtual line is higher than the probability of a short circuit occurring in the direction along the first virtual line. By defining the arrangement of the contact portions in the direction along the second virtual line, it is possible to suppress the possibility of a short circuit occurring.Alternatively, by arranging all contact portions on the base member to be projected at different positions on the second virtual line, it is possible to ensure the gap between the contact portions in the direction along the second virtual line on the base member. Therefore, it is possible to prevent the possibility of a short circuit occurring between the terminals.

[0230] 28. In the above aspect, the first contact portion may be a ground contact portion, and the first terminal may be a ground terminal. The second contact portion may be a data contact portion, and the second terminal may be a data terminal. The third contact portion may be a clock contact portion, and the third terminal may be a clock terminal. According to this aspect, it is possible to suppress the possibility of a short circuit occurring between the ground contact portion and the data contact portion and the clock contact portion.

[0231] 29. According to a third aspect of the present disclosure, a circuit board is provided that is mounted in a printing device and configured to come into contact with a plurality of device-side terminals. The printing device includes a print head, a liquid introduction portion that introduces a liquid into the print head, a receiving portion that receives a liquid receiving container and is provided with the liquid introduction portion, and the plurality of device-side terminals provided on the receiving portion. The plurality of device-side terminals includes a first device-side terminal, a second device-side terminal, a third device-side terminal, a fourth device-side terminal, and a fifth device-side terminal. In a plan view,when two orthogonal straight lines are set as the first virtual line and the second virtual line, and projection positions when a contact portion of the first device-side terminal, a contact portion of the second device-side terminal, a contact portion of the third device-side terminal, a contact portion of the fourth device-side terminal, and a contact portion of the fifth device-side terminal are projected onto the second virtual line are set as the first projection position, the second projection position, the third projection position, the fourth projection position, and the fifth projection position, respectively; when contact portions of all the device-side terminals are projected onto the second virtual line, the contact portions of all the device-side terminals are projected at different positions, and the first virtual line passes through a center between two projection positions,which are farthest apart from each other, among projection positions of the contact portions of all device-side terminals. When one area is set as the first area with respect to the first virtual line and the other area is set as the second area, contact portions of some device-side terminals among all device-side terminals are arranged in the first area, contact portions of remaining device-side terminals are arranged in the second area, the contact portions of the some device-side terminals include the contact portion of the first device-side terminal, the contact portion of the second device-side terminal,the contact portion of the third device-side terminal and the contact portion of the fourth device-side terminal, and the contact portions of the remaining device-side terminals include the contact portion of the fifth device-side terminal. The contact portions of some device-side terminals and the contact portions of the remaining device-side terminals are arranged asymmetrically with respect to the first virtual line. The circuit board includes a base member, a component provided on the base member, and a plurality of terminals provided on the base member. The plurality of terminals includes at least a first terminal, a second terminal, a third terminal, a fourth terminal, and a fifth terminal. The first terminal is coupled to the component and has a first contact portion,which is intended to come into contact with the corresponding first device-side terminal from the plurality of device-side terminals in the printing device when the circuit board is mounted in the printing device. The second terminal is coupled to the component and has a second contact portion which is intended to come into contact with the corresponding second device-side terminal from the plurality of device-side terminals when the circuit board is mounted in the printing device. The third terminal is coupled to the component and has a third contact portion which is intended to come into contact with the corresponding third device-side terminal from the plurality of device-side terminals when the circuit board is mounted in the printing device. The fourth terminal is coupled to the component and has a fourth contact portion,which is intended to come into contact with the corresponding fourth device-side terminal from the plurality of device-side terminals when the circuit board is mounted in the printing device. The fifth terminal is coupled to the component and has a fifth contact portion intended to come into contact with the corresponding fifth device-side terminal from the plurality of device-side terminals when the circuit board is mounted in the printing device. The first terminal is used to detect whether or not the first terminal has a short circuit with the second terminal and / or the third terminal and / or the fourth terminal.

[0232] Foreign matter tends to accumulate at the contact portion of the terminal. For example, foreign matter may get caught between the device-side terminal and the terminal. For example, if the terminal of the circuit board is arranged on a plane having the gravity direction component, and foreign matter enters the circuit board from the top side in the gravity direction, the foreign matter may adhere and remain in the contact portion of the terminal. For example, if the foreign matter is a liquid, the liquid tends to accumulate at the contact portion of the terminal due to an influence of capillary force. Thus, by defining the arrangement of the contact portion of the terminal rather than the arrangement of the terminal, it is possible to suppress a possibility of a short circuit occurring regardless of the area, shape, and the like of the terminal.In the present aspect, for the plurality of device-side terminals, the contact portion of the first device-side terminal, the contact portion of the second device-side terminal, the contact portion of the third device-side terminal, and the contact portion of the fourth device-side terminal are arranged in the first region, and the contact portion of the fifth device-side terminal, which is provided to prevent the occurrence of a short circuit with other contact portions, is arranged in the second region. Furthermore, in the circuit board, the first contact portion to the fourth contact portion are provided on the base member to correspond to the contact portions of the device-side terminals. By arranging the contact portions in this manner, it is possible to prevent the possibility of a short circuit occurring.This is because the fifth contact portion is separated from the contact portions of the other terminals, and the distance from the other contact portions is ensured. Thus, it is possible to prevent the possibility of a short circuit occurring between the fifth contact portion and the other contact portion. Although foreign matter tends to accumulate near the contact portion, since the distance between the fifth contact portion and the other contact portion is ensured, the foreign matter accumulated on the fifth contact portion is less likely to reach the contact portions of the other terminals, compared to a case where the fifth contact portion and the other contact portions are arranged at a short distance.Furthermore, foreign matter accumulated in the first contact portion to the fourth contact portion is less likely to reach the contact portion of the fifth terminal. This is similar regardless of the area or shape of the terminal. Examples of the foreign matter include foreign matter analogous to the foreign matter in the first aspect. Regardless of the degree of possibility that the foreign matter actually appears, there is a possibility of a short circuit occurring due to the foreign matter, unless the possibility is zero. In the present aspect, it is possible to suppress such a possibility.

[0233] Among the plurality of terminals, there is a contact portion that is desired to be arranged away from other contact portions in order to prevent a short circuit from occurring between the terminals. When the contact portion that is desired to be separated is set as the fifth contact portion, the first to fourth contact portions corresponding to the first device-side terminal to the fourth device-side terminal are arranged on the base member in the first region on one side of the first virtual line, and the fifth contact portion corresponding to the fifth device-side terminal is arranged on the base member in the second region on the other side of the line. That is, the contact portion in the first region and the contact portion in the second region are arranged on the base member to be asymmetrical with respect to the first virtual line.

[0234] In the present aspect, the contact portions corresponding to the contact portions of all the device-side terminals are arranged to be projected at different positions in the direction along the second virtual line. When the direction of the first virtual line includes the mounting direction and foreign matter is provided, the foreign matter is drawn in from the device-side terminal during the process of mounting the liquid storage container in the printing device, thus creating a possibility of a short circuit occurring between the terminals. By arranging the contact portions of all the device-side terminals on the board so that all the contact portions are projected at different positions when all the contact portions are projected onto the second virtual line, it is possible to suppress the possibility of a short circuit occurring.When focusing on the first contact portion, no contact portion other than the first contact portion is located on a straight line along the first virtual line passing through the first contact portion. The contact portions other than the first contact portion are separated from the first contact portion in the direction along the second virtual line. Such a positional relationship is analogously provided for the contact portions other than the first contact portion. Therefore, the probability of a short circuit occurring in the direction including the direction along the second virtual line is higher than the probability of a short circuit occurring in the direction along the first virtual line. By defining the arrangement of the contact portions in the direction along the second virtual line, it is possible to suppress the possibility of a short circuit occurring.Alternatively, by arranging all contact portions on the base member to be projected at different positions on the second virtual line, it is possible to ensure the gap between the contact portions in the direction along the second virtual line on the base member. Therefore, it is possible to prevent the possibility of a short circuit occurring between the terminals.

[0235] In addition to the above aspects, the present disclosure can be embodied in the forms such as a liquid containing container, a printing system, a use of a circuit board, a use of the liquid containing container and a manufacturing method of the circuit board, the liquid containing container or the like. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] WO 2012 / 029311 [0002, 0004] JP-A-2011-170740 [0003, 0004]

Claims

[1] A circuit board configured to be mounted in a printing device and configured to come into contact with a plurality of device-side terminals when the circuit board is mounted in the printing device, the printing device comprising a print head, a liquid introduction portion that introduces a liquid into the print head, a receiving portion that receives a liquid receiving container and is provided with the liquid introduction portion, and the plurality of device-side terminals provided on the receiving portion, the circuit board comprising: a basic element; a component provided on the base element; and a plurality of terminals provided on the base member, wherein which has a variety of connections a ground terminal coupled to the component and having a ground contact portion configured to contact a device-side ground terminal of the plurality of device-side terminals when the board is mounted in the printing device, and another connection group, the other connection group has at least a data terminal coupled to the component and having a data contact portion configured to contact a device-side data terminal of the plurality of device-side terminals when the board is mounted in the printing device, and a clock terminal coupled to the component and having a clock contact portion configured to contact a device-side clock terminal of the plurality of device-side terminals when the board is mounted in the printing device, the component is configured to output signals via the data terminal indicating that the data terminal is not short-circuited to at least one terminal other than the data terminal from the other terminal group, in a top view: when two virtual orthogonal straight lines are set on the base element as the first virtual line and the second virtual line, and all contact portions of all terminals provided on the base element are projected onto the second virtual line, all contact portions are projected at different positions along the second virtual line, and the first virtual line passes through a midpoint on the second virtual line between two projection positions that are farthest apart from each other among projection positions of all contact portions, the first virtual line divides the base element into a first region and a second region, the first region being on one side of the first virtual line and the second region being on the other side of the first virtual line, the data contact section and the clock contact section being arranged in the first region and the ground contact section being arranged in the second region, and the arrangement of contact sections, including all contact sections, is asymmetrical about the first virtual line. [2] The circuit board according to claim 1, wherein a distance between the data contact portion and the ground contact portion is longer than a distance between the data contact portion and the clock contact portion. [3] The circuit board according to claim 1 or 2, wherein there is no contact portion other than the data contact portion and the clock contact portion on a virtual line segment connecting the data contact portion and the clock contact portion. [4] Circuit board according to claim 1 to 3, wherein the other terminal group has a reset terminal having a reset contact portion configured to come into contact with a device-side reset terminal among the plurality of device-side terminals, and the reset contact portion is arranged in the first region. [5] The circuit board according to claim 4, wherein a distance between the data contact portion and the ground contact portion is longer than a distance between the data contact portion and the reset contact portion. [6] The circuit board according to claim 4 or 5, wherein there is no contact portion other than the data contact portion and the reset contact portion on a virtual line segment connecting the data contact portion and the reset contact portion. [7] Circuit board according to one of claims 1 to 6, wherein the other terminal group has a power source terminal having a power source contact portion configured to come into contact with a device-side power source terminal among the plurality of device-side terminals, and the power source contact portion is arranged in the first region. [8] The circuit board according to claim 7, wherein a distance between the data contact portion and the ground contact portion is longer than a distance between the data contact portion and the power source contact portion. [9] The circuit board according to claim 7 or 8, wherein there is no contact portion other than the data contact portion and the power source contact portion on a virtual line segment connecting the data contact portion and the power source contact portion. [10] The circuit board of any one of claims 7 to 9, wherein the device is configured to be driven by a voltage supplied to the power source terminal. [11] The circuit board according to any one of claims 7 to 9, wherein at least one of a contact portion of a terminal other than the data terminal from the other terminal group is arranged so that its projection position onto the second virtual line is located between a projection position of the data contact portion onto the second virtual line and a projection position of the ground contact portion onto the second virtual line. [12] Circuit board according to one of claims 1 to 11, wherein a gap length Wa is defined as the length of a gap along the second virtual line between a projection position of the ground contact portion and a projection position of a farthest contact portion located at a position farthest from the projection position of the ground contact portion among the projection positions of the contact portions for the other terminal group, the farthest contact portion being located in the first region, and a gap along the second virtual line between a projection position of the ground contact portion and a projection position of a closest contact portion located at a position closest to the projection position of the ground contact portion among the projection positions of the contact portions for the other terminal group, the closest contact portion being located in the first region, has a gap length equal to or greater than Wa / 2. [13] The circuit board according to any one of the embodiments of claims 1 to 12, wherein there is no other contact portion located between the ground contact portion provided in the second region and a contact portion located in the first region and having a projection position on the second virtual line closest to a projection position of the ground contact portion on the second virtual line. [14] Circuit board according to one of claims 1 to 13, wherein the board is configured to be mounted in the printing device by moving the board in a direction along a direction of gravity, contact portions for the other terminal group other than the data contact portion are arranged so that they are further in the direction of gravity than the data contact portion when the board is mounted in the printing device, and at least one of the contact portions for the other terminal group other than the data contact portion is arranged such that its projection position onto the second virtual line is located between a projection position of the data contact portion onto the second virtual line and a projection position of the ground contact portion onto the second virtual line. [15] The circuit board according to any one of claims 1 to 14, wherein the data terminal is configured to output signals indicating whether or not the circuit board is mounted in the printing device. [16] The circuit board of any one of claims 1 to 15, wherein voltages supplied to the other terminal group are configured to be received by the device. [17] The circuit board according to any one of claims 1 to 16, wherein the first virtual line is directed along a direction having a component of a mounting direction in which the circuit board is configured to be mounted in the printing apparatus. [18] Circuit board according to one of claims 1 to 17, wherein the component further comprises a memory, and the memory stores information regarding a liquid held in the liquid holding container. [19] The circuit board according to any one of claims 1 to 18, wherein among all contact portions of the circuit board configured to come into contact with corresponding device-side terminals, there is no contact portion located on the first virtual line. [20] A circuit board configured to be mounted in a printing device and configured to come into contact with a plurality of device-side terminals when the circuit board is mounted in the printing device, the printing device comprising a print head, a liquid introduction portion that introduces a liquid into the print head, a receiving portion that receives a liquid receiving container and is provided with the liquid introduction portion, and the plurality of device-side terminals provided on the receiving portion, the circuit board comprising: a basic element; a component provided on the base element; and a plurality of terminals provided on the base member, wherein which has a variety of connections a ground terminal coupled to the component and having a ground contact portion configured to contact a first device-side ground terminal of the plurality of device-side terminals when the board is mounted in the printing device, and another connection group, the other connection group has at least a data terminal coupled to the component and having a data contact portion configured to contact a device-side data terminal of the plurality of device-side terminals when the board is mounted in the printing device, and a clock terminal coupled to the component and having a clock contact portion configured to contact a device-side clock terminal of the plurality of device-side terminals when the board is mounted in the printing device, the data port is configured so that the data port can be used to determine whether or not the data port has a short circuit with at least one of the ports other than the data port in the other port group, in a top view: when two virtual orthogonal straight lines are set on the base element as the first virtual line and the second virtual line, and all contact portions of all terminals provided on the base element are projected onto the second virtual line, all contact portions are projected at different positions along the second virtual line, and the first virtual line passes through a midpoint on the second virtual line between two projection positions that are farthest apart from each other among projection positions of all contact portions, the first virtual line divides the base element into a first region and a second region, the first region being on one side of the first virtual line and the second region being on the other side of the first virtual line, the data contact section and the clock contact section being arranged in the first region and the ground contact section being arranged in the second region, and the arrangement of contact sections, including all contact sections, is asymmetrical about the first virtual line. [21] The circuit board according to claim 20, wherein a distance between the data contact portion and the ground contact portion is longer than a distance between the data contact portion and the clock contact portion. [22] The circuit board according to claim 20 or 21, wherein there is no contact portion other than the data contact portion and the clock contact portion on a virtual line segment connecting the data contact portion and the clock contact portion. [23] Circuit board according to one of claims 20 to 22, wherein the other terminal group has a reset terminal having a reset contact portion configured to come into contact with a device-side reset terminal among the plurality of device-side terminals, and the reset contact portion is arranged in the first region. [24] The circuit board according to claim 23, wherein a distance between the data contact portion and the ground contact portion is longer than a distance between the data contact portion and the reset contact portion. [25] The circuit board according to claim 23 or 24, wherein there is no contact portion other than the data contact portion and the reset contact portion on a virtual line segment connecting the data contact portion and the reset contact portion. [26] Circuit board according to one of claims 20 to 25, wherein the other terminal group has a power source terminal having a power source contact portion configured to come into contact with a device-side power source terminal among the plurality of device-side terminals, and the power source contact portion is arranged in the first region. [27] The circuit board according to claim 26, wherein a distance between the data contact portion and the ground contact portion is longer than a distance between the data contact portion and the power source contact portion. [28] The circuit board according to claim 26 or 27, wherein there is no contact portion other than the data contact portion and the power source contact portion on a virtual line segment connecting the data contact portion and the power source contact portion. [29] The circuit board of any one of claims 26 to 28, wherein the device is configured to be driven by a voltage supplied to the power source terminal. [30] The circuit board according to any one of claims 26 to 29, wherein at least one of a contact portion of a terminal other than the data terminal from the other terminal group is arranged such that its projection position onto the second virtual line is located between a projection position of the data contact portion onto the second virtual line and a projection position of the ground contact portion onto the second virtual line. [31] Circuit board according to one of claims 20 to 30, wherein a gap length Wa is defined as the length of a gap along the second virtual line between a projection position of the ground contact portion and a projection position of a farthest contact portion located at a position farthest from the projection position of the ground contact portion among the projection positions of the contact portions for the other terminal group, the farthest contact portion being located in the first region, and a gap along the second virtual line between a projection position of the ground contact portion and a projection position of a closest contact portion located at a position closest to the projection position of the ground contact portion among the projection positions of the contact portions for the other terminal group, the closest contact portion being located in the first region, has a gap length equal to or greater than Wa / 2. [32] The circuit board according to any one of claims 20 to 31, wherein there is no other contact portion located between the ground contact portion provided in the second region and a contact portion located in the first region and having a projection position on the second virtual line closest to a projection position of the ground contact portion on the second virtual line. [33] Circuit board according to one of claims 20 to 32, wherein the board is configured to be mounted in the printing device by moving the board in a direction along a direction of gravity, contact portions for the other terminal group other than the data contact portion are arranged so that they are further in the direction of gravity than the data contact portion when the board is mounted in the printing device, and at least one of the contact portions for the other terminal group other than the data contact portion is arranged such that its projection position onto the second virtual line is located between a projection position of the data contact portion onto the second virtual line and a projection position of the ground contact portion onto the second virtual line. [34] The circuit board according to any one of claims 20 to 33, wherein the data port is configured to output signals indicating whether or not the circuit board is mounted in the printing device. [35] A circuit board according to any one of claims 20 to 34, wherein voltages supplied to the other terminal group are configured to be received by the device. [36] The circuit board according to any one of claims 20 to 35, wherein the first virtual line is directed along a direction having a component of a mounting direction in which the circuit board is configured to be mounted in the printing apparatus. [37] The circuit board according to any one of claims 20 to 36, wherein the data port is configured to output signals to the printing device in use, comprising a signal indicating that the data port is not short-circuited to a terminal other than the data port of the plurality of terminals, and a signal indicating that the circuit board is being mounted in the printing device. [38] Circuit board according to one of claims 20 to 37, wherein the component further comprises a memory, and the memory stores information regarding a liquid held in the liquid holding container. [39] The circuit board according to any one of claims 20 to 38, wherein among all contact portions of the circuit board configured to come into contact with corresponding device-side terminals, there is no contact portion located on the first virtual line. [40] A liquid receiving container configured to be mounted on a receiving portion of a printing device having a print head, a liquid introducing portion that introduces a liquid into the print head, the receiving portion provided with the liquid introducing portion, and a plurality of device-side ports provided on the receiving portion, the liquid receiving container comprising: a liquid receiving body configured to receive a liquid; a liquid supply portion mounted on the liquid introduction portion of the printing device and having a liquid supply port for supplying a liquid to the liquid introduction portion from the liquid receiving body; a component; and a variety of connections, whereby which has a variety of connections a ground terminal coupled to the component and having a ground contact portion configured to come into contact with a device-side ground terminal of the plurality of device-side terminals in the printing device when the liquid receiving container is mounted in the printing device, and another connection group, the other connection group has at least a data connector coupled to the component and having a data contact portion configured to contact a device-side data connector from the plurality of device-side connectors when the liquid receptacle is mounted in the printing device, and a clock terminal coupled to the component and having a clock contact portion configured to come into contact with a device-side clock terminal of the plurality of device-side terminals when the liquid storage container is mounted in the printing device, the component is configured to output via the data connection that the data connection does not have a short circuit with at least one connection other than the data connection from the other connection group, in a top view: when two virtual orthogonal straight lines are set as the first virtual line and the second virtual line, and all contact portions of all terminals provided on the liquid receiving container are projected onto the second virtual line, all contact portions are projected at different positions along the second virtual line, and the first virtual line passes through a midpoint on the second virtual line between two projection positions that are farthest apart from each other among projection positions of all contact portions, divides the first virtual line into a first region and a second region, wherein the first region is located on one side of the first virtual line and the second region is located on the other side of the first virtual line, the data contact section and the clock contact section are arranged in the first region and the ground contact section is arranged in the second region, and the arrangement of contact sections, including all contact sections of the board, is asymmetrical around the first virtual line. [41] The liquid storage container according to claim 40, wherein a distance between the data contact portion and the ground contact portion is longer than a distance between the data contact portion and the clock contact portion. [42] A liquid containing container according to claim 40 or 41, wherein there is no contact portion other than the data contact portion and the clock contact portion on a virtual line segment connecting the data contact portion and the clock contact portion. [43] Liquid receiving container according to one of claims 40 to 42, wherein the other terminal group has a reset terminal having a reset contact portion configured to come into contact with a device-side reset terminal among the plurality of device-side terminals, and the reset contact portion is arranged in the first region. [44] The liquid containing container according to claim 43, wherein a distance between the data contact portion and the ground contact portion is longer than a distance between the data contact portion and the reset contact portion. [45] A liquid containing container according to claim 43 or 44, wherein there is no contact portion other than the data contact portion and the reset contact portion on a virtual line segment connecting the data contact portion and the reset contact portion. [46] Liquid receiving container according to one of claims 40 to 45, wherein the other terminal group has a power source terminal having a power source contact portion configured to come into contact with a device-side power source terminal among the plurality of device-side terminals, and the power source contact portion is arranged in the first region. [47] The liquid containing container according to claim 46, wherein a distance between the data contact portion and the ground contact portion is longer than a distance between the data contact portion and the power source contact portion. [48] A liquid containing container according to claim 46 or 47, wherein there is no contact portion other than the data contact portion and the power source contact portion on a virtual line segment connecting the data contact portion and the power source contact portion. [49] A liquid storage container according to any one of claims 46 to 48, wherein the device is configured to be driven by a voltage supplied to the power source terminal. [50] A liquid containing container according to any one of claims 46 to 49, wherein at least one of a contact portion of a terminal other than the data terminal from the other terminal group is arranged so that its projection position onto the second virtual line is located between a projection position of the data contact portion onto the second virtual line and a projection position of the ground contact portion onto the second virtual line. [51] Liquid receiving container according to one of claims 40 to 50, wherein a gap length Wa is defined as the length of a gap along the second virtual line between a projection position of the ground contact portion and a projection position of a farthest contact portion located at a position farthest from the projection position of the ground contact portion among the projection positions of the contact portions for the other terminal group, the farthest contact portion being located in the first region, and a gap along the second virtual line between a projection position of the ground contact portion and a projection position of a closest contact portion located at a position closest to the projection position of the ground contact portion among the projection positions of the contact portions for the other terminal group, the closest contact portion being located in the first region, has a gap length equal to or greater than Wa / 2. [52] A liquid containing container according to any one of claims 40 to 51, wherein there is no other contact portion located between the ground contact portion provided in the second region and a contact portion located in the first region and having a projection position on the second virtual line closest to a projection position of the ground contact portion on the second virtual line. [53] Liquid receiving container according to one of claims 40 to 52, wherein the liquid receiving container is configured to be mounted in the printing device by moving the board in a direction along a direction of gravity, contact portions for the other terminal group other than the data contact portion are arranged so that they are further in the direction of gravity than the data contact portion when the liquid receiving container is mounted in the printing device, and at least one of the contact portions for the other terminal group other than the data contact portion is arranged such that its projection position onto the second virtual line is located between a projection position of the data contact portion onto the second virtual line and a projection position of the ground contact portion onto the second virtual line. [54] A liquid storage container according to any one of claims 40 to 53, wherein the data terminal is configured to output signals indicating whether or not the liquid storage container is mounted in the printing device. [55] A liquid storage container according to any one of claims 40 to 54, wherein voltages supplied to the other terminal group are configured to be received by the device. [56] Liquid receptacle according to one of claims 40 to 55, further comprising: a circuit board, where the circuit board has the plurality of connections and the component. [57] The liquid containing container according to any one of claims 40 to 56, wherein the first virtual line is directed along a direction having a component of a mounting direction in which the liquid containing container is configured to be mounted in the printing apparatus. [58] Liquid receiving container according to one of claims 40 to 57, wherein the component further comprises a memory, and the memory stores information regarding a liquid held in the liquid holding container. [59] The liquid containing container according to any one of claims 40 to 58, wherein among all contact portions configured to come into contact with corresponding device-side terminals, there is no contact portion located on the first virtual line. [60] A liquid receiving container configured to be mounted on a receiving portion of a printing device having a print head, a liquid introducing portion that introduces a liquid into the print head, the receiving portion provided with the liquid introducing portion, and a plurality of device-side ports provided on the receiving portion, the liquid receiving container comprising: a liquid receiving body configured to receive a liquid; a liquid supply portion mounted on the liquid introduction portion of the printing device and having a liquid supply port for supplying a liquid to the liquid introduction portion from the liquid receiving body; a component; and a variety of connections, whereby which has a variety of connections a ground terminal coupled to the component and having a ground contact portion configured to come into contact with a device-side ground terminal of the plurality of device-side terminals in the printing device when the liquid receiving container is mounted in the printing device, and another connection group, the other connection group has at least a data connector coupled to the component and having a data contact portion configured to contact a device-side data connector from the plurality of device-side connectors when the liquid receptacle is mounted in the printing device, and a clock terminal coupled to the component and having a clock contact portion configured to come into contact with a device-side clock terminal of the plurality of device-side terminals when the liquid storage container is mounted in the printing device, the data port is configured so that the data port can be used to detect whether or not the data port has a short circuit with at least one of ports other than the data port in the other port group, in a top view: when two virtual orthogonal straight lines are set as the first virtual line and the second virtual line, and all contact portions of all terminals provided on the liquid receiving container are projected onto the second virtual line, all contact portions are projected at different positions along the second virtual line, and the first virtual line passes through a midpoint on the second virtual line between two projection positions that are farthest apart from each other among projection positions of all contact portions, divides the first virtual line into a first region and a second region, wherein the first region is located on one side of the first virtual line and the second region is located on the other side of the first virtual line, the data contact section and the clock contact section are arranged in the first region and the ground contact section is arranged in the second region, and the arrangement of contact sections, including all contact sections of the board, is asymmetrical around the first virtual line. [61] The liquid storage container according to claim 60, wherein a distance between the data contact portion and the ground contact portion is longer than a distance between the data contact portion and the clock contact portion. [62] A liquid containing container according to claim 60 or 61, wherein there is no contact portion other than the data contact portion and the clock contact portion on a virtual line segment connecting the data contact portion and the clock contact portion. [63] Liquid receiving container according to one of claims 60 to 62, wherein the other terminal group has a reset terminal having a reset contact portion configured to come into contact with a device-side reset terminal among the plurality of device-side terminals, and the reset contact portion is arranged in the first region. [64] The liquid containing container according to claim 63, wherein a distance between the data contact portion and the ground contact portion is longer than a distance between the data contact portion and the reset contact portion. [65] A liquid containing container according to claim 63 or 64, wherein there is no contact portion other than the data contact portion and the reset contact portion on a virtual line segment connecting the data contact portion and the reset contact portion. [66] Liquid receiving container according to one of claims 60 to 65, wherein the other terminal group has a power source terminal having a power source contact portion configured to come into contact with a device-side power source terminal among the plurality of device-side terminals, and the power source contact portion is arranged in the first region. [67] The liquid containing container according to claim 66, wherein a distance between the data contact portion and the ground contact portion is longer than a distance between the data contact portion and the power source contact portion. [68] A liquid containing container according to claim 66 or 67, wherein there is no contact portion other than the data contact portion and the power source contact portion on a virtual line segment connecting the data contact portion and the power source contact portion. [69] A liquid storage container according to any one of claims 66 to 68, wherein the device is configured to be driven by a voltage supplied to the power source terminal. [70] A liquid containing container according to any one of claims 66 to 69, wherein at least one of a contact portion of a terminal other than the data terminal from the other terminal group is arranged such that its projection position onto the second virtual line is located between a projection position of the data contact portion onto the second virtual line and a projection position of the ground contact portion onto the second virtual line. [71] Liquid receiving container according to one of claims 60 to 70, wherein a gap length Wa is defined as the length of a gap along the second virtual line between a projection position of the ground contact portion and a projection position of a farthest contact portion located at a position farthest from the projection position of the ground contact portion among the projection positions of the contact portions for the other terminal group, the farthest contact portion being located in the first region, and a gap along the second virtual line between a projection position of the ground contact portion and a projection position of a closest contact portion located at a position closest to the projection position of the ground contact portion among the projection positions of the contact portions for the other terminal group, the closest contact portion being located in the first region, has a gap length equal to or greater than Wa / 2. [72] A liquid containing container according to any one of claims 60 to 71, wherein there is no other contact portion located between the ground contact portion provided in the second region and a contact portion located in the first region and having a projection position on the second virtual line closest to a projection position of the ground contact portion on the second virtual line. [73] Liquid receiving container according to one of claims 60 to 72, wherein the liquid receiving container is configured to be mounted in the printing device by moving the board in a direction along a direction of gravity, contact portions for the other terminal group other than the data contact portion are arranged so that they are further in the direction of gravity than the data contact portion when the liquid receiving container is mounted in the printing device, and at least one of the contact portions for the other terminal group other than the data contact portion is arranged such that its projection position onto the second virtual line is located between a projection position of the data contact portion onto the second virtual line and a projection position of the ground contact portion onto the second virtual line. [74] A liquid storage container according to any one of claims 60 to 73, wherein the data terminal is configured to output signals indicating whether or not the liquid storage container is mounted in the printing device. [75] A liquid storage container according to any one of claims 60 to 74, wherein voltages supplied to the other terminal group are configured to be received by the device. [76] Liquid receptacle according to one of claims 60 to 75, further comprising: a circuit board, where the circuit board has the plurality of connections and the component. [77] The liquid containing container according to any one of claims 60 to 76, wherein the first virtual line is directed along a direction having a component of a mounting direction in which the liquid containing container is configured to be mounted in the printing apparatus. [78] The liquid storage container according to any one of claims 60 to 77, wherein the data port is configured to output signals to the printing device in use, comprising a signal indicating that the data port is not short-circuited with the terminal other than the data port of the plurality of terminals, and a signal indicating that the liquid storage container is being mounted in the printing device. [79] Liquid receiving container according to one of claims 60 to 78, wherein the component further comprises a memory, and the memory stores information regarding a liquid held in the liquid holding container. [80] The liquid containing container according to any one of claims 60 to 79, wherein among all contact portions configured to come into contact with corresponding device-side terminals, there is no contact portion located on the first virtual line.

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