Substrate and liquid container

Abstract

To provide a technique for suppressing the possibility of occurrence of a short circuit between terminals.SOLUTION: In a substrate, certain contact portions of all contact portions are disposed in a first region, and the remaining contact portions are disposed in a second region; the certain contact portions include a first contact portion, a second contact portion, a third contact portion, and a fourth contact portion, and the remaining contact portions include a fifth contact portion; and the certain contact portions and the remaining contact portions are disposed asymmetrically with respect to a first imaginary line.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present disclosure relates to techniques for substrates, liquid containing containers, printing systems, and uses of the substrates or liquid containing containers. [Background technology]

[0002] Conventionally, a technology is known for detecting the attachment of an ink cartridge that is detachably attached to a printing device using attachment detection terminals of a terminal group (Patent Document 1). The terminal group is composed of four attachment detection terminals, including a terminal to which a high voltage higher than the power supply voltage is applied, and five memory terminals, and the attachment detection terminals are arranged at the four corners of the terminal group so as to surround the memory terminals. In Patent Document 1, when it is detected that the attachment detection terminals are electrically connected to the device-side terminals, the printing device determines that the ink cartridge is attached to the printing device.

[0003] Also, a technology is known for detecting the attachment of an ink cartridge, which is detachably attached to a printing device, using a memory terminal (Patent Document 2). A storage device such as a memory provided in an ink cartridge outputs a response signal to the host terminal via one of a reset terminal, a clock terminal, and a data terminal to notify that the storage device is connected to a host device such as a printing device. The host device determines whether the storage device is connected to the host device based on the response signal from the storage device, without using a terminal dedicated to connection detection. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] International Publication No. 2012-029311 [Patent Document 2] JP 2011-170740 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, Patent Documents 1 and 2 do not mention detection of short circuits between memory terminals. Patent Document 1 states that if a short circuit occurs between memory terminals, even if it is determined that the ink cartridge is attached to the printing device, the printing device may not operate normally, and reading and writing to the memory of the ink cartridge may not be performed normally. Patent Document 2 states that if a short circuit occurs between memory terminals, the memory may not be able to output the original signal to the printing device, and the printing device may not be able to determine that the memory is properly connected to the printing device.

[0006] The present disclosure has been made to solve the above problems, and has as its object to provide a technology that can suppress the possibility of short circuiting between terminals in a liquid storage container such as an ink cartridge. Alternatively, it has as its object to provide a technology that can detect a short circuit, if one occurs between at least some of the terminals. The present disclosure achieves at least one of the above objects. [Means for solving the problem]

[0007] According to a first aspect of the present disclosure, there is provided a substrate configured to be mounted on a printing device having a print head, a liquid introduction section for introducing liquid into the print head, a storage section in which the liquid introduction section is provided and which stores a liquid container, and a plurality of device-side terminals provided in the storage section, and configured to come into contact with the plurality of device-side terminals. The substrate includes a base material, a device provided on the base material, and a plurality of terminals provided on the base material, the plurality of terminals including at least a first terminal, a second terminal, a third terminal, a fourth terminal, and a fifth terminal, the first terminal including a first contact portion connected to the device and to be in contact with a corresponding first device-side terminal of the plurality of device-side terminals, the second terminal including a second contact portion connected to the device and to be in contact with a corresponding second device-side terminal of the plurality of device-side terminals, the third terminal including a third contact portion connected to the device and to be in contact with a corresponding third device-side terminal of the plurality of device-side terminals, the fourth terminal including a fourth contact portion connected to the device and to be in contact with a corresponding fourth device-side terminal of the plurality of device-side terminals, and the fifth terminal including a fifth contact portion connected to the device and to be in contact with a corresponding fifth device-side terminal of the plurality of device-side terminals. the first terminal is used to detect whether the first terminal is short-circuited to at least one of the second terminal, the third terminal, and the fourth terminal; when, in a plan view, two perpendicular straight lines are defined as a first virtual line and a second virtual line, and all of the contact portions of all of the terminals provided on the substrate are projected onto the second virtual line, all of the contact portions are projected at different positions, and the first virtual line passes through the midpoint between two of the farthest projection positions of all of the contact portions, and when one region with respect to the first virtual line is defined as a first region and the other region is defined as a second region, some of the all of the contact portions are arranged in the first region and the remaining contact portions are arranged in the second region, the some of the 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, and the some of the contact portions and the remaining contact portions are arranged asymmetrically with respect to the first virtual line.

[0008] According to a second aspect of the present disclosure, there is provided a substrate configured to be mounted on a printing device having a print head, a liquid introduction section for introducing liquid into the print head, a storage section in which the liquid introduction section is provided and which stores a liquid container, and a plurality of device-side terminals provided in the storage section, and configured to come into contact with the plurality of device-side terminals. the substrate includes a base material, a device provided on the base material, and a plurality of terminals provided on the base material, the plurality of terminals including a first terminal connected to the device and including a first contact portion to be in contact with a corresponding first device-side terminal of the plurality of device-side terminals, and a group of other terminals, the group of other terminals including at least a second terminal connected to the device and including a second contact portion to be in contact with a corresponding second device-side terminal of the plurality of device-side terminals, and a third terminal connected to the device and including a third contact portion to be in contact with a corresponding third device-side terminal of the plurality of device-side terminals, the second terminal being used to detect whether or not the second terminal is short-circuited with at least one of the group of other terminals excluding the second terminal, In plan view, When two perpendicular straight lines are defined as a first virtual line and a second virtual line, and all of the contact portions of all of the terminals provided on the substrate are projected onto the second virtual line, all of the contact portions are projected at different positions, and the first virtual line passes midway between the two furthest projection positions of all of the contact portions, and when one region with respect to the first virtual line is defined as a first region and the other region is defined as a second region, some of the contact portions are arranged in the first region and the remaining contact portions are arranged in the second region, the some of the contact portions include the second contact portion and the third contact portion, the remaining contact portions include the first contact portion, and the some of the contact portions and the remaining contact portions are arranged asymmetrically with respect to the first virtual line.

[0009] According to a third aspect of the present disclosure, there is provided a substrate configured to be mounted on a printing device having a print head, a liquid introduction section for introducing liquid into the print head, a storage section in which the liquid introduction section is provided and which stores a liquid container, and a plurality of device-side terminals provided in the storage section, and configured to come into contact with the plurality of device-side terminals. the plurality of device-side terminals include 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; when two straight lines intersecting at right angles in a plan view are defined as a first virtual line and a 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 as a first projection position, a second projection position, a third projection position, a fourth projection position, and a fifth projection position, respectively, when the contact portions of all of the device-side terminals are projected onto the second virtual line, the contact portions of all of the device-side terminals are projected at different positions, when the first virtual line passes through the midpoint between the two farthest projection positions among the projection positions, and when one region with respect to the first virtual line is defined as a first region and the other region is defined as a second region, the contact portions of some of the contact portions of all of the device-side terminals are arranged in the first region and the contact portions of the remaining device-side terminals are arranged in the second region, the contact portions of the some of the 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, the contact portions of the remaining device-side terminals include the contact portion of the fifth device-side terminal, and the contact portions of the some of the device-side terminals and the contact portions of the remaining device-side terminals are arranged asymmetrically with respect to the first virtual line.The substrate comprises a base material, a device provided on the base material, and a plurality of terminals provided on the base material, the plurality of terminals including at least a first terminal, a second terminal, a third terminal, a fourth terminal, and a fifth terminal, the first terminal including a first contact portion connected to the device and to come into contact with a corresponding first device-side terminal among a plurality of device-side terminals of the printing device when the substrate is attached to the printing device, the second terminal including a second contact portion connected to the device and to come into contact with a corresponding second device-side terminal among the plurality of device-side terminals when the substrate is attached to the printing device, and the third terminal including a first contact portion connected to the device and to come into contact with a corresponding second device-side terminal among the plurality of device-side terminals when the substrate is attached to the printing device. the fourth terminal is connected to the device and includes a fourth contact portion that should contact the corresponding fourth apparatus-side terminal of the plurality of apparatus-side terminals when attached to the printing device, the fifth terminal is connected to the device and includes a fifth contact portion that should contact the corresponding fifth apparatus-side terminal of the plurality of apparatus-side terminals when attached to the printing device, and the first terminal is used to detect whether the first terminal is short-circuited to at least one of the second terminal, the third terminal, and the fourth terminal.

[0010] According to a fourth aspect of the present disclosure, there is provided a liquid storage container to be attached to a storage section of a printing device comprising a print head, a liquid introduction section for introducing liquid into the print head, a storage section in which the liquid introduction section is provided, and a plurality of device-side terminals provided in the storage section. This liquid storage container comprises a liquid storage body capable of storing liquid, a liquid supply section that is attached to the liquid introduction section of the printing device and has a liquid supply port that supplies liquid from the liquid storage body to the liquid introduction section, a device, and a plurality of terminals, the plurality of terminals including at least a first terminal, a second terminal, a third terminal, a fourth terminal, and a fifth terminal, the first terminal is connected to the device and includes a first contact portion to be in contact with a corresponding first device-side terminal of the plurality of device-side terminals, the second terminal is connected to the device and includes a second contact portion to be in contact with a corresponding second device-side terminal of the plurality of device-side terminals, the third terminal is connected to the device and includes a third contact portion to be in contact with a corresponding third device-side terminal of the plurality of device-side terminals, the fourth terminal is connected to the device and includes a fourth contact portion to be in contact with a corresponding fourth device-side terminal of the plurality of device-side terminals, and the fifth terminal is connected to the device and includes a fifth contact portion to be in contact with a corresponding fourth device-side terminal of the plurality of device-side terminals. a fifth contact portion to be in contact with a corresponding fifth device-side terminal, the first terminal is used for detecting whether the first terminal is short-circuited to at least one of the second terminal, the third terminal, and the fourth terminal, and when, in a plan view, two perpendicular straight lines are defined as a first virtual line and a second virtual line, and all of the contact portions of all of the terminals provided on the liquid storage container are projected onto the second virtual line, all of the contact portions are projected at different positions, the first virtual line passes through a midpoint between two projection positions that are farthest from each other among the projection positions of all of the contact portions, and when one region is defined as a first region and the other region is defined as a second region with respect to the first virtual line, some of the contact portions are arranged in the first region and the remaining contact portions are arranged in the second region, the some of the contact portions include the first contact portion, the second contact portion, the third contact portion, and the fourth contact portion, the remaining contact portions include the fifth contact portion, and the some of the contact portions and the remaining contact portions are arranged asymmetrically with respect to the first virtual line.

[0011] According to a fifth aspect of the present disclosure, there is provided a liquid storage container to be attached to a storage section of a printing device comprising a print head, a liquid introduction section for introducing liquid into the print head, a storage section in which the liquid introduction section is provided, and a plurality of device-side terminals provided in the storage section. the liquid container comprises a liquid container capable of containing liquid, a liquid supply unit that is attached to the liquid introduction unit of the printing device and has a liquid supply port that supplies liquid from the liquid container to the liquid introduction unit, a device, and a plurality of terminals, the plurality of terminals including a first terminal that is connected to the device and includes a first contact portion that should contact a corresponding first device-side terminal of a plurality of device-side terminals of the printing device, and a group of other terminals, the group of other terminals including at least a second terminal that is connected to the device and includes a second contact portion that should contact a corresponding second device-side terminal of the plurality of device-side terminals, and a third terminal that is connected to the device and includes a third contact portion that should contact a corresponding third device-side terminal of the plurality of device-side terminals, the second terminal being used to detect whether or not the second terminal is short-circuited to at least one of the group of other terminals excluding the second terminal, In plan view, When two perpendicular straight lines are defined as a first virtual line and a second virtual line, and all of the contact parts of all of the terminals provided on the liquid storage container are projected onto the second virtual line, all of the contact parts are projected at different positions, and the first virtual line passes midway between the two most distant projection positions of all the contact parts, and when one region is defined as a first region and the other region is defined as a second region with respect to the first virtual line, some of the contact parts are arranged in the first region and the remaining contact parts are arranged in the second region, the some of the contact parts include the second contact part and the third contact part, the remaining contact parts include the first contact part, and the some of the contact parts and the remaining contact parts are arranged asymmetrically with respect to the first virtual line.

[0012] According to a sixth aspect of the present disclosure, there is provided a liquid storage container to be attached to a storage section of a printing device, the liquid storage section comprising a print head, a liquid introduction section for introducing liquid into the print head, a storage section in which the liquid introduction section is provided, and a plurality of device-side terminals provided in the storage section. The plurality of device-side terminals include 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, and when two straight lines that intersect at right angles in a plan view are defined as a first virtual line and a 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 as a first projection position, a second projection position, a third projection position, a fourth projection position, and a fifth projection position, respectively, when the 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 When the first virtual line passes through the middle between the two farthest projection positions among the projection positions, and one region with respect to the first virtual line is designated as a first region and the other region is designated as a second region, the contact portions of some of the contact portions of all of the device-side terminals are arranged in the first region, and the contact portions of the remaining device-side terminals are arranged in the second region, the contact portions of the some of the 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, and the contact portions of the some of the device-side terminals and the contact portions of the remaining device-side terminals are arranged asymmetrically with respect to the first virtual line.This liquid storage container comprises a liquid storage body capable of storing liquid, a liquid supply section that is attached to the liquid introduction section of the printing device and has a liquid supply port that supplies liquid from the liquid storage body to the liquid introduction section, a device, and a plurality of terminals, the plurality of terminals including at least a first terminal, a second terminal, a third terminal, a fourth terminal, and a fifth terminal, the first terminal including a first contact portion that is connected to the device and that should come into contact with a corresponding first device-side terminal of a plurality of device-side terminals of the printing device when the liquid storage container is attached to the printing device, and the second terminal including a second contact portion that is connected to the device and that should come into contact with a corresponding second device-side terminal of the plurality of device-side terminals when the liquid storage container is attached to the printing device. the third terminal includes a third contact portion connected to the device and to come into contact with the corresponding third device-side terminal of the plurality of device-side terminals when attached to the printing device, the fourth terminal includes a fourth contact portion connected to the device and to come into contact with the corresponding fourth device-side terminal of the plurality of device-side terminals when attached to the printing device, the fifth terminal includes a fifth contact portion connected to the device and to come into contact with the corresponding fifth device-side terminal of the plurality of device-side terminals when attached to the printing device, and the first terminal is used to detect whether the first terminal is shorted to at least one of the second terminal, the third terminal, and the fourth terminal.

[0013] According to a seventh aspect of the present disclosure, there is provided a printing system.This printing system comprises a printing device, a liquid container capable of containing liquid, a liquid supply section having a liquid supply port, a device, a plurality of terminals, and a substrate on which the device and the plurality of terminals are provided, the printing device comprises a print head, a liquid introduction section that introduces liquid to the print head, and a plurality of device-side terminals, the liquid supply port supplies liquid from the liquid container to the liquid introduction section of the printing device, the substrate is attached to the printing device and is configured to come into contact with the plurality of device-side terminals, the plurality of terminals including at least a first terminal, the first terminal is connected to the device and includes a first contact portion to be in contact with a corresponding first apparatus-side terminal of the plurality of apparatus-side terminals, the second terminal is connected to the device and includes a second contact portion to be in contact with a corresponding second apparatus-side terminal of the plurality of apparatus-side terminals, the third terminal is connected to the device and includes a third contact portion to be in contact with a corresponding third apparatus-side terminal of the plurality of apparatus-side terminals, and the fourth terminal is connected to the device and includes a fifth terminal to be in contact with a corresponding first apparatus-side terminal of the plurality of apparatus-side terminals. the fifth terminal is connected to the device and includes a fifth contact portion to be in contact with a corresponding fifth device-side terminal of the plurality of device-side terminals; the first terminal is used to detect whether or not the first terminal is short-circuited with at least one of the second terminal, the third terminal, and the fourth terminal; when two perpendicular straight lines are defined as a first virtual line and a second virtual line in a plan view and all of the contact portions of all of the terminals provided on the board are projected onto the second virtual line, all of the contact portions are located at different positions When the first virtual line passes through the middle between the two farthest projection positions of all of the contact parts, and when one region with respect to the first virtual line is designated as a first region and the other region is designated as a second region, a portion of all of the contact parts are arranged in the first region and the remaining contact parts are arranged in the second region, the portion of contact parts includes the first contact part, the second contact part, the third contact part, and the fourth contact part, and the remaining contact parts includes the fifth contact part, and the portion of contact parts and the remaining contact parts are arranged asymmetrically with respect to the first virtual line.

[0014] According to an eighth aspect of the present disclosure, there is provided a printing system comprising a printing device and a liquid storage container mounted on the printing device, the printing device comprising a print head, a liquid introduction section for introducing liquid to the print head, and a plurality of device-side terminals, the liquid storage container comprising a liquid container capable of storing liquid, a liquid supply section having a liquid supply port for supplying liquid from the liquid container to the liquid introduction section of the printing device, a device, and a plurality of terminals, the plurality of terminals including at least a first terminal, a second terminal, a third terminal, a fourth terminal, and a fifth terminal, the first terminal being a terminal that is connected to the liquid storage container and a liquid supply section having a liquid supply port for supplying liquid from the liquid storage body to the liquid introduction section of the printing device. the second terminal is connected to the device and includes a second contact portion to be in contact with a corresponding second device side terminal of the plurality of device side terminals; the third terminal is connected to the device and includes a third contact portion to be in contact with a corresponding third device side terminal of the plurality of device side terminals; and the fourth terminal is connected to the device and includes a fourth contact portion to be in contact with a corresponding fourth device side terminal of the plurality of device side terminals. the fifth terminal is connected to the device and includes a fifth contact portion to be in contact with a corresponding fifth device-side terminal among the plurality of device-side terminals, the first terminal is used to detect whether the first terminal is short-circuited with at least one of the second terminal, the third terminal, and the fourth terminal, and when two perpendicular straight lines are defined as a first virtual line and a second virtual line in a plan view and all of the contact portions of all of the terminals provided on the liquid storage container are projected onto the second virtual line, all of the contact portions are projected at different positions, When the first virtual line passes through the middle between the two farthest projection positions of the contact parts, and one region with respect to the first virtual line is designated as the first region and the other region is designated as the second region, a portion of all of the contact parts are arranged in the first region and the remaining contact parts are arranged in the second region, the portion of contact parts includes the first contact part, the second contact part, the third contact part, and the fourth contact part, the remaining contact parts includes the fifth contact part, and the portion of contact parts and the remaining contact parts are arranged asymmetrically with respect to the first virtual line.

[0015] According to a ninth aspect of the present disclosure, there is provided the use of a substrate that is attached to a printing device having a print head, a liquid introduction section for introducing liquid into the print head, a storage section in which the liquid introduction section is provided and which stores a liquid container, and a plurality of device-side terminals provided in the storage section, and that is configured to come into contact with the plurality of device-side terminals. The use of this substrate includes a substrate, a device provided on the substrate, and a plurality of terminals provided on the substrate, the plurality of terminals including at least a first terminal, a second terminal, a third terminal, a fourth terminal, and a fifth terminal, the first terminal including a first contact portion connected to the device and to be in contact with a corresponding first apparatus side terminal of the plurality of apparatus side terminals, the second terminal including a second contact portion connected to the device and to be in contact with a corresponding second apparatus side terminal of the plurality of apparatus side terminals, the third terminal including a third contact portion connected to the device and to be in contact with a corresponding third apparatus side terminal of the plurality of apparatus side terminals, the fourth terminal including a fourth contact portion connected to the device and to be in contact with a corresponding fourth apparatus side terminal of the plurality of apparatus side terminals, and the fifth terminal including a fifth contact portion connected to the device and to be in contact with a corresponding fifth apparatus side terminal of the plurality of apparatus side terminals. the first terminal is used to detect whether the first terminal is short-circuited to at least one of the second terminal, the third terminal, and the fourth terminal; when, in a plan view, two straight lines intersecting at right angles are defined as a first virtual line and a second virtual line, and all of the contact portions of all of the terminals provided on the base material are projected onto the second virtual line, all of the contact portions are projected at different positions, the first virtual line passes through the middle between two projection positions that are farthest from each other among the projection positions of all of the contact portions, and when one region with respect to the first virtual line is defined as a first region and the other region is defined as a second region, some of the contact portions are arranged in the first region and the remaining contact portions are arranged in the second region, the some of the contact portions include the first contact portion, the second contact portion, the third contact portion, and the fourth contact portion, the remaining contact portions include the fifth contact portion, and the some of the contact portions and the remaining contact portions are arranged asymmetrically with respect to the first virtual line.

[0016] According to a tenth aspect of the present disclosure, there is provided a use of a liquid container attached to a storage section of a printing device including a print head, a liquid introduction section that introduces liquid to the print head, a storage section in which the liquid introduction section is provided, and a plurality of device-side terminals provided in the storage section. 。 The use of this liquid container includes a liquid container capable of containing liquid, a liquid supply unit that is attached to the liquid introduction unit of the printing device and has a liquid supply port that supplies liquid from the liquid container to the liquid introduction unit, a device, and a plurality of terminals, the plurality of terminals including at least a first terminal, a second terminal, a third terminal, a fourth terminal, and a fifth terminal, the first terminal is connected to the device and includes a first contact portion that is to be in contact with a corresponding first device-side terminal of the plurality of device-side terminals, the second terminal is connected to the device and includes a second contact portion that is to be in contact with a corresponding second device-side terminal of the plurality of device-side terminals, the third terminal is connected to the device and includes a third contact portion that is to be in contact with a corresponding third device-side terminal of the plurality of device-side terminals, the fourth terminal is connected to the device and includes a fourth contact portion that is to be in contact with a corresponding fourth device-side terminal of the plurality of device-side terminals, and the fifth terminal is connected to the device and includes a fourth contact portion that is to be in contact with a corresponding fourth device-side terminal of the plurality of device-side terminals. the first terminal is used for detecting whether the first terminal is short-circuited to at least one of the second terminal, the third terminal, and the fourth terminal, and when, in a plan view, two straight lines intersecting at right angles are defined as a first virtual line and a second virtual line, and all of the contact portions of all of the terminals provided on the liquid storage container are projected onto the second virtual line, all of the contact portions are projected at different positions, the first virtual line passes through a midpoint between two projection positions that are farthest from each other among the projection positions of all of the contact portions, and when one region with respect to the first virtual line is defined as a first region and the other region is defined as a second region, some of the contact portions are arranged in the first region and the remaining contact portions are arranged in the second region, the some of the contact portions include the first contact portion, the second contact portion, the third contact portion, and the fourth contact portion, the remaining contact portions include the fifth contact portion, and the some of the contact portions and the remaining contact portions are arranged asymmetrically with respect to the first virtual line. [Brief description of the drawings]

[0017] [Figure 1] FIG. 1 is a perspective view showing a hardware configuration of a printing system. [Diagram 2] FIG. 1 is an explanatory diagram showing a schematic configuration of a printing system. [Diagram 3] FIG. 2 is a first perspective view showing a configuration of a liquid storage container. [Figure 4] FIG. 2 is a second perspective view showing the configuration of the liquid storage container. [Diagram 5] FIG. 1 is a first diagram showing the configuration of a substrate. [Figure 6] FIG. 2 is a second diagram showing the configuration of the substrate. [Figure 7A] FIG. 4 is a diagram showing a state in which the liquid storage container is attached to the carriage. [Figure 7B] FIG. 1 is a first diagram showing a connection mechanism. [Figure 7C] A second view showing the connection mechanism. [Figure 8] FIG. 2 is a diagram illustrating an electrical configuration of the printing system. [Figure 9] FIG. 2 is a diagram showing the functional configuration of a printing device together with one liquid container. [Figure 10A] 6 is a flowchart of a process for determining a connection state that is executed by a printing device. [Figure 10B] 11 is a flowchart of a process executed by a device in a connection state determination process. [Figure 11A] 6 is a timing chart showing when the printing device outputs a request signal. [Figure 11B] 6 is a timing chart when a device outputs a first response signal and a second response signal. [Figure 11C] FIG. 4 is a diagram showing details of a first response signal. [Figure 11D] FIG. 13 is a diagram showing details of a second response signal. [Figure 12] FIG. 4 is a diagram showing an overview of a connection state determination process executed by a main control unit. [Figure 13A] 13 is a first timing chart of a connection state determination process. [Figure 13B]13 is a second timing chart of the connection state determination process. [Figure 14A] 13 is a third timing chart of the connection state determination process. [Figure 14B] 13 is a fourth timing chart of the connection state determination process. [Figure 15] 13 is a fifth timing chart of the connection state determination process. [Figure 16A] 13 is a sixth timing chart of the connection state determination process. [Figure 16B] 13 is a seventh timing chart of the connection state determination process. [Figure 17] 13 is an eighth timing chart of the connection state determination process. [Figure 18A] 13 is a ninth timing chart of the connection state determination process. [Figure 18B] 10 is a tenth timing chart of the connection state determination process. [Figure 19] 11 is an eleventh timing chart of the connection state determination process. [Figure 20A] 12 is a twelfth timing chart of the connection state determination process. [Figure 20B] 13 is a thirteenth timing chart of the connection state determination process. [Figure 20C] 10A and 10B are diagrams for explaining another specific example of the connection state determination process. [Figure 21A] FIG. 4 is a diagram for explaining a substrate as another embodiment 1. [Figure 21B] FIG. 21B is a diagram showing the arrangement examples shown in No. 2 and No. 3 in FIG. 21A. [Figure 22] FIG. 11 is a diagram showing two patterns of substrates according to another embodiment 2. [Diagram 23] FIG. 13 is a diagram showing two patterns of substrates according to a third alternative embodiment. [Figure 24] FIG. 13 is a diagram showing two patterns of substrates according to a fourth alternative embodiment. [Diagram 25] FIG. 13 is a diagram showing two patterns of substrates according to a fourth alternative embodiment. [Figure 26] FIG. 13 is a diagram for explaining a substrate as another embodiment 5. [Figure 27]FIG. 13 is a diagram showing two patterns of substrates according to a sixth alternative embodiment. [Figure 28] FIG. 13 is a diagram showing a substrate as another embodiment 7. [Figure 29] FIG. 11 is a perspective view showing a liquid storage container according to a first alternative embodiment. [Diagram 30] FIG. 11 is a perspective view showing a liquid storage container according to a second alternative embodiment. [Diagram 31] FIG. 4 is an enlarged view of the periphery of a substrate of the liquid storage container. [Diagram 32] FIG. 11 is a perspective view showing a liquid storage container according to a third alternative embodiment. [Diagram 33] FIG. 13 is a perspective view showing a liquid storage container according to a fourth alternative embodiment. [Diagram 34] FIG. 13 is a perspective view showing a liquid storage container according to a fifth alternative embodiment. [Diagram 35] FIG. 13 is a perspective view showing a liquid storage container according to a sixth alternative embodiment. [Diagram 36] FIG. 13 is a diagram showing a liquid storage container according to a seventh alternative embodiment. [Figure 37] FIG. 13 is a diagram showing a liquid storage container according to an eighth alternative embodiment. [Figure 38] FIG. 13 is a perspective view showing a liquid storage container according to a ninth alternative embodiment. [Figure 39] An enlarged view of the board area. [Diagram 40] FIG. 1 is a first diagram illustrating a process of mounting a liquid storage container in a storage unit of a printing device. [Diagram 41] FIG. 2 is a second diagram illustrating a process of mounting the liquid container in the container unit of the printing device. [Diagram 42] FIG. 13 is a diagram showing a state in which the liquid storage container is completely attached. [Diagram 43] FIG. 13 is a diagram showing a printing system according to a first alternative embodiment. [Diagram 44] FIG. 11 is a diagram showing a printing system according to a second alternative embodiment. [Diagram 45] FIG. 13 is a diagram showing a printing system according to a third alternative embodiment. [Diagram 46] FIG. 13 is a diagram showing a printing system according to a fourth alternative embodiment. [Figure 47A]11 is a first timing chart for a printing system equipped with six liquid storage containers. [Figure 47B] 13 is a second timing chart for a printing system equipped with six liquid storage containers. [Figure 48] FIG. 2 is a diagram showing a schematic diagram of the electrical configuration of a printing system equipped with six liquid storage containers. [Figure 49] FIG. 13 is a diagram showing a device according to another embodiment 1. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] A. First embodiment: A1.Hardware Configuration: An overview of the printing system 1000 will be described with reference to FIG. 1 and FIG. 2. FIG. 1 is a perspective view showing the hardware configuration of the printing system 1000. FIG. 2 is an explanatory diagram showing the schematic configuration of the printing system 1000. FIG. 1 shows X-axis, Y-axis, and Z-axis which are mutually orthogonal. The directions in which the arrows of the X-axis, Y-axis, and Z-axis point indicate the positive directions along the X-axis, Y-axis, and Z-axis, respectively. The positive directions along the X-axis, Y-axis, and Z-axis are respectively the +X direction, +Y direction, and +Z direction. The directions opposite to the directions in which the arrows of the X-axis, Y-axis, and Z-axis point are respectively the negative directions along the X-axis, Y-axis, and Z-axis. The negative directions along the X-axis, Y-axis, and Z-axis are respectively the -X direction, -Y direction, and -Z direction. The directions along the X-axis, Y-axis, and Z-axis, regardless of whether they are positive or negative, are respectively called the X direction, Y direction, and Z direction. The same applies to the following figures and explanations. The X-axis, Y-axis, and Z-axis depicted in other figures correspond to the X-axis, Y-axis, and Z-axis in Fig. 1. In Fig. 1, in a normal use posture of the printing system 1000, the front direction of the printing system 1000 is defined as the +Y direction. The +Z direction is defined as the direction of gravity, and the -Z direction is defined as the anti-gravity direction.

[0019] The printing system 1000 includes a printing device 20 and a plurality of liquid storage containers 100. Specifically, the printing device 20 is an inkjet printer. Specifically, the liquid storage containers 100 are ink cartridges. The printing device 20 includes a head drive mechanism, a main scanning feed mechanism, and a sub-scanning feed mechanism.

[0020] The head drive mechanism includes a carriage 30. The carriage 30 includes a storage section 4 and a print head 5. The storage section 4 is configured to detachably mount four liquid storage containers 100. In this disclosure, "the liquid storage container 100 is mounted on the printing device 20" means that the liquid storage container 100 is physically attached to the printing device 20, and a contact portion cp of a terminal 290 described later is electrically connected to a device-side terminal 490 described later. The four liquid storage containers 100 are each stored at a predetermined position in the storage section 4. In this disclosure, the four liquid storage containers 100 each store a liquid of a different color. The liquid is specifically ink, and will be referred to as ink hereinafter. When the four liquid storage containers 100 are to be distinguished from one another, they will be referred to as liquid storage containers 100A to 100D. The carriage 30 is configured to be movable between an exchange position where the liquid storage container 100 can be exchanged and a standby position where the liquid storage container 100 cannot be exchanged.

[0021] The print head 5 is provided on the surface of the carriage 30 facing 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 connected to one of the liquid storage containers 100A to 100D mounted on the storage unit 4 via a flow path in the carriage 30. The storage unit 4 is provided with a liquid introduction unit 6 (described later) and a connection mechanism 400 (described later). The liquid introduction unit 6 is configured to be detachable from a liquid supply port 104op (described later) of the liquid storage container 100. The liquid introduction unit 6 is supplied with ink from the liquid storage container 100, and introduces the ink to the print head 5 via a flow path in the carriage 30. The connection mechanism 400 has a plurality of device side terminals 490 (described later).

[0022] The main scanning feed mechanism includes a drive belt 36, a carriage motor 32, a sliding 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. A carriage 30 is fixed to the drive belt 36. The sliding shaft 34 is provided in parallel with the axis of a paper feed roller 26, which will be described later, and holds the carriage 30 slidably. As the carriage motor 32 rotates, the carriage 30 fixed to the drive belt 36 moves in the +X direction and the -X direction along the sliding shaft 34.

[0023] The sub-scanning feed mechanism includes a paper feed motor 22 and a paper feed roller 26. When the paper feed motor 22 rotates, the paper feed roller 26 transports the printing medium PA in the Y direction.

[0024] The printing device 20 further includes a main control unit 40. The main control unit 40 is connected to the carriage 30 by a cable 31. A bus 46 is formed in the cable 31, and the main control unit 40 is electrically connected to a sub-control board 500 of the carriage 30 (described later) via the bus 46.

[0025] The main control unit 40 controls each of the above mechanisms to realize the printing process. For example, the main control unit 40 receives a user's print job from the computer 90 via the connector 80, and executes printing based on the contents of the received print job. The 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 and -X directions by the drive belt 36, so that ink ejected from the print head 5 in the +Z direction lands on any location on the print medium PA, forming an image. In this disclosure, "image" includes characters and symbols. In this disclosure, the +X and -X directions in which the carriage 30 moves are collectively referred to as the "main scanning direction." The -Y and +Y directions in which the print medium PA is fed are collectively referred to as the "sub-scanning direction."

[0026] The printing device 20 further includes an operation unit 70. A user uses the operation unit 70 to perform various settings of the printing device 20 and to check the status of the printing device 20.

[0027] As described above, the printing device 20 includes the print head 5, the liquid introduction section 6 that introduces liquid to the print head 5, the storage section 4 in which the liquid introduction section 6 is provided and which stores the liquid storage container 100, and a plurality of device-side terminals 490. The print head 5 is provided in the printing device 20. The print head 5 is not provided in the liquid storage container 100. The form in which the print head 5 is provided in the liquid storage container 100 differs from the technical field of the present disclosure.

[0028] The configuration of the liquid storage container 100 will be described with reference to Figures 3 and 4. Figure 3 is a first perspective view showing the configuration of the liquid storage container 100. Figure 4 is a second perspective view showing the configuration of the liquid storage container 100. As with Figure 1, the orientations of the X-axis, Y-axis, and Z-axis of the liquid storage container 100 are based on a state in which the printing device 20 is placed on a horizontal plane parallel to the X direction and Y direction, and the liquid storage container 100 is attached to the printing device 20.

[0029] 3 and 4, the liquid storage container 100 has an external shape that is a substantially rectangular parallelepiped. As shown in Fig. 3, the liquid storage container 100 includes a liquid storage body 101 capable of storing ink as a liquid, a liquid supply part 104 having a liquid supply port 104op, and a substrate 120.

[0030] The liquid container 101 forms the outer shell of the liquid container 100. The liquid container 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 for containing ink is defined inside the liquid container 101 by these six walls 101wf, 101wr, 101wb, 101wu, 101wsa, and 101wsb. The first wall 101wf is a wall on the +Y direction side and constitutes a front wall. The front wall faces the front side 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 constitutes 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 in this embodiment, they are substantially perpendicular to each other. The third wall 101wb is a wall on the +Z direction side and constitutes a bottom wall. The fourth wall 101wu intersects with the first wall 101wf and the second wall 101wr, and in this embodiment, they are substantially perpendicular to each other. The fourth wall 101wu faces the third wall 101wb. The fourth wall 101wu is a wall on the -Z direction side and constitutes an upper wall. The fifth wall 101wsa intersects with the first wall 101wf to the fourth wall 101wu, and in this embodiment, they are substantially perpendicular to each other. The fifth wall 101wsa is a wall on the -X direction side and constitutes a right side wall. The sixth wall 101wsb intersects with the first wall 101wf to the fourth wall 101wu, and in this embodiment, they are substantially perpendicular to each other. The sixth wall 101wsb faces the fifth wall 101wsa. The sixth wall 101wsb is a wall on the +X direction side, and constitutes the left side wall.

[0031] The liquid supply unit 104 is a cylindrical member protruding from the third wall 101wb. The liquid supply port 104op is located at the tip side of the liquid supply unit 104. The liquid supply port 104op communicates with the ink chamber 150 of the liquid container 101, and when the liquid storage container 100 is attached to the carriage 30 of the printing device 20, the liquid supply port 104op supplies ink to a liquid introduction section 6 of the carriage 30, which will be described later. The liquid supply port 104op is sealed by a film 104f. The liquid supply port 104op is configured to be detachable from the liquid introduction section 6. When the liquid storage container 100 is attached to the carriage 30, the film 104f is broken by the liquid introduction section 6. The ink stored in the ink chamber 150 is supplied to the print head 5 of the printing device 20 through the liquid introduction section 6. As the ink in the ink chamber 150 is consumed, air is introduced into the ink chamber 150 from an air vent hole (not shown).

[0032] The direction in which the liquid container 100 is mounted on the carriage 30 of the printing device 20 is referred to as the mounting direction MD. The mounting direction MD is also the direction in which the substrate 120 is mounted on the carriage 30 of the printing device 20. In this embodiment, the mounting direction MD is the +Z direction. Two directions that are perpendicular to each other are referred to as the first direction FD and the second direction SD. The first direction FD is a direction that includes a component of the mounting direction MD. In this embodiment, the first direction FD is the Z direction, and the second direction SD is the +Z direction. SD is the X direction. The first direction FD is a direction substantially along the front surface 120fa of the substrate 120.

[0033] The first direction FD is also defined as follows. For example, the first direction FD is a direction perpendicular to an imaginary plane including the liquid supply port 104op. For example, the first direction FD is a direction perpendicular to a terminal (to be described later) when the liquid container 100 and the substrate 120 are mounted on the carriage 30. 290 The upper side is the direction in which the device-side terminals 490 of the printing device 20, which will be described later, pass. For example, the first direction FD is a direction perpendicular to the direction in which the multiple device-side terminals 490 of the printing device 20 are arranged. In other embodiments, when the front surface 120fa is inclined with respect to the mounting direction MD, the first direction FD is a direction different from the mounting direction MD.

[0034] The substrate 120 is used in the liquid container 100. In this embodiment, as shown in Fig. 4, the substrate 120 is provided on the second wall 101wr of the liquid container 101. The substrate 120 will be described in detail later.

[0035] Two protrusions Pr1 and Pr2 are formed on the second wall 101wr. These protrusions Pr1 and Pr2 protrude in the -Y direction. A hole 122 and a notch 121 are formed on the substrate 120 to receive these protrusions Pr1 and Pr2, respectively. The hole 122 is formed in the center of the end of the substrate 120 on the liquid supply unit 104 side, and the notch 121 is formed in the center of the end of the substrate 120 on the opposite side to the liquid supply unit 104. When the substrate 120 is fixed to the second wall 101wr, the protrusions Pr1 and Pr2 are inserted into the hole 122 and the notch 121, respectively. After the substrate 120 is inserted into the second wall 101wr, the tips of these protrusions Pr1 and Pr2 are crushed. As a result, the substrate 120 is fixed to the second wall 101wr. Note that when the substrate 120 is fixed to the second wall 101wr, the protrusions Pr1 and Pr2 are inserted into the hole 122 and the notch 121, respectively. r The means for fixing the sensor to the sensor is not limited to the above.

[0036] In this embodiment, when the liquid storage container 100 is viewed from a direction perpendicular to the second wall 101wr on which the substrate 120 is provided, the substrate 120 is disposed so that the central axis of the liquid supply port 104op overlaps with a first virtual line C1, which will be described later. A contact portion cp, which will be described later, is not disposed on the central axis of the liquid supply port 104op.

[0037] As shown in FIG. 3, the liquid container 100 further includes a liquid detection member 110. The liquid detection member 110 is fixed inside the liquid container 101. The liquid detection member 110 is a member used by the printing device 20 to detect the remaining amount of ink in the liquid container 100. The liquid detection member 110 may be, for example, a prism for optically detecting the remaining amount of ink, a piezoelectric element in which a piezoelectric body is sandwiched between two opposing electrodes, or two electrodes that detect the remaining amount of ink based on the difference in resistance between the electrodes. It is noted that the liquid detection member 110 does not necessarily have to be provided.

[0038] The details of the substrate 120 will be described with reference to FIG. 5 and FIG. 6. FIG. 5 is a first diagram showing the configuration of the substrate 120. FIG. 6 is a second diagram showing the configuration of the substrate 120. As shown in FIG. 6, the substrate 120 includes a base material 120bd, a plurality of terminals 290, a device 130, and wiring (not shown). The substrate 120 may include other configurations. The base material 120bd has a front surface 120fa and a back surface 120fb. In this embodiment, the front surface 120fa and the back surface 120fb are each flat. The base material 120bd may be made of a material that constitutes a rigid substrate, a flexible substrate, or the like. The terminal 290 is formed of a conductor such as gold foil.

[0039] In the present disclosure, the "surface" is defined as follows, for example. For example, the "surface" is the surface of the base material 120bd that faces the device-side terminal 490 described later when the liquid storage container 100 or the substrate 120 is attached to the printing device 20. For example, the "surface" is the surface of the base material 120bd on which the terminal 290 is formed, in addition to the surface that faces the device-side terminal 490 described later when the liquid storage container 100 or the substrate 120 is attached to the printing device 20. For example, the "surface" is the surface of the base material 120bd that includes the contact portion cp described later. In this embodiment, the "surface" is the front surface 120fa. In other embodiments, the "surface" is the front surface 120fa unless otherwise specified.

[0040] As shown in FIG. 5, the multiple terminals 290 include a data terminal 210, a clock terminal 220, a power terminal 230, a reset terminal 240, and a ground terminal 250. Each of the terminals 210, 220, 230, 240, and 250 is connected to the device 130. Each of the terminals 210 to 250 is electrically connected to the device 130 via a wiring pattern layer provided on the front surface 120fa and the back surface 120fb of the substrate 120bd or a through hole provided inside the substrate 120bd. 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 change in voltage. Signals transmitted and received via the data terminal 210 include, for example, signals indicating various data stored in the storage unit 138 described later, signals controlled by the processing unit 136 described later and not stored in the storage unit 138, and signals controlled by the main control unit 40 or sub-control unit 50 of the printing device 20 and 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 terminal 230 is used to supply a power supply 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 described later of the printing device 20. The voltages supplied to the data terminal 210, the clock terminal 220, the power terminal 230, and the reset terminal 240 are voltages that the device 130 can accept. The range of voltage supplied to each of the terminals 210-240 is the same, and in this embodiment, is about 0V to about 3.3V. The voltage that the device 130 can accept is, for example, a voltage lower than the voltage used to drive the print head 5, a voltage similar to the power supply voltage VDD, a voltage lower than the withstand voltage of the device 130, a voltage that does not destroy the device 130, or a voltage that does not cause the device 130 to malfunction. Here, the check terminal used for shipping inspection is not included in the terminals 290 of 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 attached to the printing device 20. The check terminal does not form a contact portion cp, which will be described later.

[0041] 5, each of the terminals 210, 220, 230, 240, 250 includes a contact portion cp that is to come into contact with a corresponding device-side terminal 410, 420, 430, 440, 450 among a plurality of device-side terminals 490 of the connection mechanism 400 of the printing device 20 when the liquid storage container 100 is attached to the storage unit 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 terminal 230 is also referred to as a power contact portion cpvd. The contact portion cp of the reset terminal 240 is also referred to as a reset contact portion cpr. The contact portion cp of the ground terminal 250 is also referred to as a ground contact portion cpvs. The contact portion cp is a part of an area on each terminal 210, 220, 230, 240, 250 that is to come into contact with the device-side terminals 410, 420, 430, 440, 450 when the liquid storage container 100 is attached to the storage unit 4, and is an area that can be recognized by the liquid storage container 100 alone. The substrate 120 has a data contact portion cpd, a clock contact portion cpc, a power contact portion cpvd, a reset contact portion cpr, and a ground contact portion cpvs. The connection between the terminal 290 and the device-side terminal 490 of the printing device 20 will be described later. The terminal 290 and the corresponding contact portion cp may be located in addition to the terminals 210 to 250 described above.

[0042] The data terminal 210 is used to detect whether the data terminal 210 is short-circuited with at least one of the clock terminal 220, the power terminal 230, and the reset terminal 240. Specifically, the data terminal 210 is used to detect whether the data terminal 210 is in a short-circuited state, which will be described later, with at least one of the clock terminal 220, the power terminal 230, and the reset terminal 240. The data terminal 210 is used to detect whether the liquid storage container 100 is attached to the printing device 20. Specifically, the data terminal 210 is used to detect whether the liquid storage container 100 is in an attachment complete state, which will be described later, or in an unattached state, which will be described later.

[0043] Hereinafter, the substrate 120 will be viewed from above. As shown in FIG. 5, two straight lines that intersect at right angles are a first virtual line C1 and a second virtual line C2. In this embodiment, the first virtual line C1 is aligned in the first direction FD. Stretching Line The second virtual line C2 is in the second direction SD. Stretching Line In this embodiment, two straight lines that are substantially aligned along the front surface 120fa of the base material 120bd and intersect at right angles are defined as the first virtual line C1 and the second virtual line C2.

[0044] It is assumed that all the contacts cp of all the terminals 290 provided on the base material 120bd of the substrate 120 are projected onto the second virtual line C2. In this embodiment, it is assumed that the data contacts cpd, the clock contacts cpc, the power contacts cpvd, the reset contacts cpr, and the ground contacts cpvs are projected onto the second virtual line C2. Regarding the projection positions of the contacts cp, the projection position of the data contacts cpd is swd, the projection position of the clock contacts cpc is swc, the projection position of the power contacts cpvd is swvd, the projection position of the reset contacts cpr is swr, and the projection position of the ground contacts cpvs is swvs. Each projection position swd, swc, swvd, swr, and swvs is an orthogonal projection perpendicular to the second virtual line C2 from each of the contacts cpd, cpc, cpvd, cpr, and cpvs. At this time, all the contacts cp are projected to different positions. The data contact cpd, the clock contact cpc, the power contact cpvd, the reset contact cpr, and the ground contact cpvs are arranged so that the virtual lines along the first virtual line C1 passing through each contact cp are parallel without overlapping or intersecting with each other. In addition, at this time, the first virtual line C1 passes through the middle MP between the two most distant projection positions among the projection positions of all the contacts cp. In this embodiment, the first virtual line C1 passes through the middle MP between the projection position of the contact that is disposed at the most distant position from the projection position swvs of the ground contact cpvs among the projection positions swd, swc, swvd, and swr of the data contact cpd, the clock contact cpc, the power contact cpvd, and the reset contact cpr, and the projection position swvs of the ground contact cpvs. In this embodiment, the first virtual line C1 passes through the middle between the projection position swc of the clock contact cpc and the projection position swvs of the ground contact cpvs.

[0045] With respect to the first virtual line C1, one region of the base material 120bd of the substrate 120 is defined as a first region Rg1, and the other region of the base material 120bd of the substrate 120 is defined as a second region Rg2. In this embodiment, the first region Rg1 is a region on the -X direction side, which is the negative direction of the second direction SD, from 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, from the first virtual line C1. The first region Rg1 is also one region of the substrate 120 sandwiching the first virtual line C1, and the second region Rg2 is also the other region of the substrate 120 sandwiching the first virtual line C1. Of 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. Some of the contacts cpa arranged in the first region Rg1 include a data contact cpd, a clock contact cpc, a power contact cpv, and a reset contact cpr. The remaining contacts cpb arranged in the second region Rg2 include a ground contact cpvs. On one side of the first virtual line C1, the clock contact cpc, the data contact cpd, the reset contact cpr, and the power contact cpvd are arranged, and on the other side, the ground contact cpvs is arranged. Some of the contacts cpa and the remaining contacts cpb are arranged asymmetrically with respect to the first virtual line C1. No contact cp is provided on the first virtual line C1.

[0046] The ground contact portion cpvs is disposed at the end of the multiple 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 contact portion cpvd, and the reset contact portion cpr is disposed at the end of the multiple contact portions cp in the -X direction, which is the negative direction of the second direction SD. This any one contact portion cp is disposed at the end of the multiple contact portions cp on one side in the second direction SD. The ground contact portion cpvs is disposed at the end of the multiple contact portions cp on the other side in the second direction SD. In the first region Rg1, among the contact portions cp other than the ground contact portion cpvs, the distance in the direction along the second virtual line C2 between the contact portion cp projected at the farthest position from the projection position swvs of the ground contact portion cpvs when projected onto the second virtual line C2 and the ground contact portion cpvs provided in the second region Rg2 is Wa. In this embodiment, the distance between the projection position swc of the clock contact part cpc and the projection position swvs of the ground contact part cpvs in the direction along the second virtual line C2 is Wa. In this embodiment, the distance between the clock contact part cp and the ground contact part cpvs in the second direction SD is Wa.

[0047] The data contact cpd, the clock contact cpc, the power contact cpvd, and the reset contact cpr are preferably arranged away from the ground contact cpvs. For example, in the first region Rg1, among the contacts cp excluding the ground contact cpvs, the distance in the direction along the second virtual line C2 between the contact cp that is projected to a position closest to the projection position swvs of the ground contact cpvs when projected onto the second virtual line C2 and the ground contact cpvs provided in the second region Rg2 is Wa / 2 or more. In this embodiment, in the first region Rg1, among the contacts cpd, cpvd, cpr, and cpvd excluding the ground contact cpvs, the distance in the second direction SD between the reset contact cpr located on the positive side of the second direction SD and the ground contact cpvs provided in the second region Rg2 is Wa / 2 or more. For example, in the first region Rg1, among the contact parts cp other than the ground contact part cpvs, between the contact part cp projected at the position closest to the projection position swvs of the ground contact part cpvs when projected onto the second virtual line C2 and the ground contact part cpvs provided in the second region Rg2, there is no other contact part cp connected to the device 130 via the terminal 290. In this embodiment, in the region between the reset contact part cpr provided at the end on the +X direction side, which is the positive direction of the second direction SD, in the first region Rg1, and the ground contact part cpvs provided in the second region Rg2, there is no other contact part cp connected to the device 130 via the terminal 290. For example, the other contact parts cpd, cpc, cpvd, cpr and the ground contact part cpvs arranged on the substrate 120 are not provided on the first virtual line C1.

[0048] At least one contact cp of the clock contact cpc, the power contact cpvd, and the reset contact cpr is arranged on the substrate 120 so as to be projected between the projection position swd of the data contact cpd and the projection position swvs of the ground contact cpvs. Preferably, at least two contacts cp of the clock contact cpc, the power contact cpvd, and the reset contact cpr are arranged on the substrate 120 so as to be projected between the projection position swd of the data contact cpd and the projection position swvs of the ground contact cpvs. In this embodiment, at least two contacts cp of the clock contact cpc, the power contact cpvd, and the reset contact cpr are arranged on the substrate 120 so as to be projected between the projection position swd of the data contact cpd and the projection position swvs of the ground contact cpvs.

[0049] On the substrate 120, the data contact cpd is arranged so as to be projected between the projection positions of any two contacts cp among the power contact cpvd, the reset contact cpr, and the clock contact cpc. The data contact cpd is not the contact projected to the extreme end on the second virtual line C2. In this embodiment, the data contact cpd is arranged so as to be projected between the projection positions of the clock contact cpc and the power contact cpvd.

[0050] The substrate 120 is arranged so that either one or both of the data contact cpd and the reset contact cpr are projected between the projection position swvd of the power contact cpvd and the projection position swc of the clock contact cpc. The reset contact cpr is arranged so that its projection position swr is adjacent to the projection position swvd of the power contact cpvd. In this embodiment, the substrate 120 is arranged so that the data contact cpd is projected between the projection position swvd of the power contact cpvd and the projection position swc of the clock contact cpc. "Arranged so as to be adjacent" does not necessarily mean that one contact and another contact are closest to each other. Other configurations may be arranged between one contact and another contact as long as they do not deviate from the gist of the present disclosure.

[0051] On the substrate 120, the power contact cpvd is arranged such that its projected position swvd is next to the projected position swd of the data contact cpd.

[0052] In this embodiment, the clock contact cpc is arranged on the substrate 120 so as to be projected at a position farthest from the projection position swvs of the ground contact cpvs. The data contact cpd, the power contact cpvd, and the reset contact cpr are arranged so as to be projected in order from the projection position swc of the clock contact cpc on the second virtual line C2 toward the projection position swvs of the ground contact cpvs. The clock contact cpc is located at the end in the negative direction of the second direction SD, that is, the -X direction. The contacts cp other than the clock contact cpc are arranged in the order of the data contact cpd, the power contact cpvd, and the reset contact cpr from the negative direction of the second direction SD, that is, the -X direction, toward the positive direction, that is, the +X direction. The multiple contacts cp are arranged so that the projection positions of each are in the order of the clock contact cpc, the data contact cpd, the power contact cpvd, the reset contact cpr, and the ground contact cpvs from the negative direction to the +X direction.

[0053] The clock contact cpc, the data contact cpd, the power contact cpvd, the reset contact cpr, and the ground contact cpvs are arranged to form a plurality of columns. The columns are parallel to the second virtual line C2 and perpendicular to the first virtual line C1. In this embodiment, the contacts cp are arranged to form two columns perpendicular to the first direction FD, and the direction of the two columns is parallel to the second direction SD. The direction in which the two columns are aligned is along the first virtual line C1, which is along the first direction FD in this embodiment. The two columns are called the first column R1 and the second column R2. The first column R1 is formed by the clock contact cpc, the power contact cpvd, and the ground contact cpvs. The second column R2 is formed by the data contact cpd and the reset contact cpr. The data contacts cpd and the reset contacts cpr forming the second row R2, and the clock contacts cpc, the power contacts cpvd and the ground contacts cpvs forming the first row R1 are arranged alternately so that the contacts cp are not aligned in the direction of the first virtual line C1, forming a so-called staggered arrangement. Two contacts cp on the base material 120bd that are projected next to each other when projected onto the second virtual line C2 form different rows. The data contacts cpd and the ground contacts cpvs are arranged in different rows. Any of the contacts cp of the clock contacts cpc, the power contacts cpvd and the reset contacts cpr are arranged so as to be projected between the projection position swd of the data contacts cpd and the projection position swvs of the ground contacts cpvs. In this embodiment, the reset contacts cpr and the power contacts cpvd are arranged so as to be projected between the projection position swd of the data contacts cpd and the projection position swvs of the ground contacts cpvs. In this embodiment, the contact portions cp of the terminals 210-250 are arranged to form a first row R1 and a second row R2, but this is not limited to the above. For example, the contact portions cp of the terminals 210-250 may be arranged to form three or four rows. A row may be formed by one contact portion cp.

[0054] The distance between the ground contact cpvs and the reset contact cpr is the distance Dan. The distance between the data contact cpd and the clock contact cpc is the distance Dbn. The distance between the data contact cpd and the ground contact cpvs is the distance Dcn. The distance between the data contact cpd and the reset contact cpr is the distance Ddn. The distance between the data contact cpd and the power contact cpvd is the 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 this embodiment, the distance Dbn and the distance Den are the same. The distance between the data contact cpd and the contact cp farthest from the data contact cpd among the multiple contacts cp excluding the ground contact 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.

[0055] The clock contact cpc, the reset contact cpr, and the power contact cpvd are arranged adjacent to the data contact cpd between the data contact cpd and the ground contact cpvs so as to surround the data contact cpd. The data contact cpd is arranged inside a virtual circle Vcr that passes through the clock contact cpc, the reset contact cpr, and the power contact cpvd, so that the clock contact cpc, the reset contact cpr, and the power contact cpvd surround the data contact cpd.

[0056] The virtual line segment connecting the clock contact cpc and the data contact cpd is the first line segment FL, the virtual line segment connecting the reset contact cpr and the data contact cpd is the second line segment SL, and the virtual line segment connecting the power contact cpvd and the data contact cpd is the third line segment TL. On the first line segment FL, there is no contact portion cp of the terminal 290 other than the clock contact cpc and the data contact cpd. On the second line segment SL, there is no contact portion cp of the terminal 290 other than the reset contact cpr and the data contact cpd. On the third line segment TL, there is no contact portion cp of the terminal 290 other than the power contact cpvd and the data contact cpd.

[0057] In this embodiment, the five terminals 210 to 250 have the same positional relationship as the above-mentioned contact parts cpd, cpc, cpvd, cpr, and cpvs. That is, the data terminal 210, the clock terminal 220, the reset terminal 240, and the power terminal 230 are arranged in the first region Rg1. The ground terminal 250 is arranged in the second region Rg2. No other terminal 290 than the clock terminal 220 and the data terminal 210 is arranged on the first line segment FL. No other terminal 290 than the reset terminal 240 and the data terminal 210 is arranged on the second line segment SL. No other terminal 290 than the power terminal 230 and the data terminal 210 is arranged on the third line segment TL.

[0058] As described above, the data terminal 210 is used to detect whether or not a short circuit has occurred between the data terminal 210 and the clock terminal 220, the reset terminal 240, and the power terminal 250, and whether or not the liquid storage container 100 is attached to the printing device 20, and at least a portion of the arrangement of the contact portion cp in this disclosure is determined to enable such detection.

[0059] 6, the device 130 is configured to be provided on a base material 120bd. The device 130 includes a processing unit 136. In this embodiment, the device 130 includes the processing unit 136 and a storage unit 138. The device 130 is molded (sealed) with a resin 139. The device 130 may be mounted on the base material 120bd by another method.

[0060] The processing unit 136 is configured by, for example, a circuit. The processing unit 136 is connected to the terminals 210 to 250, and controls signals and voltages input and output to the terminals 210 to 250. The processing unit 136 may be a circuit having a high-level arithmetic processing function such as a CPU. The processing unit 136 will be described in detail later.

[0061] The storage unit 138 is configured, for example, by 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 is, for example, the amount of ink consumed, the color of ink, the manufacturing date of the liquid storage container 100, and identification information of the liquid storage container 100. In this embodiment, the liquid storage containers 100A to 100D are assigned the numbers "1" to "4" as their identification information, respectively.

[0062] 7A to 7C, the configuration of the carriage 30 and how the liquid storage container 100 is attached to the carriage 30 will be described. Fig. 7A is a diagram showing how the liquid storage container 100 is attached to the carriage 30. Fig. 7B is a first diagram showing the connection mechanism 400. Fig. 7C is a second diagram showing the connection mechanism 400.

[0063] The carriage 30 includes a storage unit 4 and a print head 5. The storage unit 4 is disposed on the print head 5, and is configured to be able to detachably mount a plurality of liquid storage containers 100. Inside the storage unit 4, a mounting chamber 65 is formed in which the liquid storage containers 100 are mounted. In this embodiment, four mounting chambers 65 are provided corresponding to the number of liquid storage containers 100A to 100D. The print head 5 includes a plurality of nozzles and a plurality of piezoelectric elements, and ejects ink droplets from each nozzle according to a voltage applied to each piezoelectric element to form dots on the print medium PA. The storage unit 4 includes a liquid introduction unit 6, a sub-control board 500, and a connection mechanism 400. The liquid introduction unit 6 is disposed on the print head 5 in the normal use position of the printing system 1000, and introduces ink from a liquid supply port 104op of the liquid storage container 100 to the print head 5. In this embodiment, four liquid introduction units 6 are provided corresponding to the number of liquid storage containers 100A to 100D. The sub-control board 500 is mounted with a plurality of sub-control board terminals 510, 520, 530, 540, 550 and a sub-control unit 50. When the sub-control board terminals 510, 520, 530, 540, 550 are used without distinction, the reference symbol 590 is used. The sub-control board terminals 590 are provided for each mounting chamber 65. The sub-control board terminals 590 are electrically connected to the sub-control unit 50 via wiring of the sub-control board 500. The sub-control unit 50 is configured as, for example, a carriage circuit, and cooperates with the main control unit 40 shown in FIG. 2 to perform control related to the liquid storage container 100.

[0064] The liquid container 100 is inserted in the mounting direction MD. Storage section 4. The liquid storage container 100 is removed from the storage unit 4 by being pulled out in the direction opposite to the mounting direction MD. In this manner, the liquid storage container 100 is removably mounted in the printing device 20. When the liquid storage container 100 is mounted in the storage unit 4, the device 130 is electrically connected to the main control unit 40 via the terminal 290, the connection mechanism 400, the sub-control board 500, and the bus 46 shown in FIG. 2.

[0065] As shown in FIG. 7B and FIG. 7C, the connection 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 connection 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 slits 301. The contact portion forming members 403 are conductive and elastic. The contact portion forming members 403 are fitted into the slits 301. In this embodiment, five contact portion forming members 403 are provided for each connection mechanism 400, which is the same as the number of the terminals 290. As shown in FIG. 7B, when the five contact portion forming members 403 are to be distinguished from one another, the reference characters "403A", "403B", "403C", "404D", and "404E" are used. In this embodiment, nine slits 301 are provided in the connection mechanism 400 and are arranged at regular intervals, but the number may be the same as the number of contact portion forming members 403 .

[0066] As shown in FIG. 7C, the contact portion forming member 403 ,end The contact portion forming member 403 is a member that electrically connects the terminal 290 and the sub-control board terminal 590 of the sub-control board 500. The 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 includes a contact portion dcp of the device side terminal 490 that should contact the terminal 290. In this embodiment, the portion of the contact portion forming member 403 that faces the mounting chamber 65 side most, i.e., the portion that protrudes most toward the mounting chamber 65 side, contacts the terminal 290 and forms the contact portion dcp of the device side terminal 490. The contact portion dcp of the device side terminal 490 is not limited to this embodiment. For example, the terminal 290 may contact a portion of the device side terminal 490 other than the portion that protrudes most toward the mounting chamber 65 side. The portion of the contact portion forming member 403 that protrudes toward the sub-control board 500 side forms a relay terminal 439 that contacts the sub-control board terminal 590.

[0067] When the device side terminals 490 are used to be distinguished, the reference symbols "410", "420", "430", "440", and "450" ​​are used. When the relay terminals 439 are used to be distinguished, the reference symbols "431", "432", "433", "434", and "435" are used. The device side terminals 410 and the relay terminals 431 are formed on the contact portion forming member 403A. The device side terminals 420 and the relay terminals 432 are formed on the contact portion forming member 403B. The device side terminals 430 and the relay terminals 433 are formed on the contact portion forming member 403C. The device side terminals 440 and the relay terminals 434 are formed on the contact portion forming member 403D. The device side terminals 450 and the relay terminals 435 are formed on the contact portion forming member 403E. The device side terminal 410 is also called a device side data terminal, the device side terminal 420 is also called a device side clock terminal, the device side terminal 430 is also called a device side power terminal, the device side terminal 440 is also called a device side reset terminal, and the device side terminal 450 is also called a device side ground terminal.

[0068] The contact portion forming member 403A electrically connects 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 connects 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 connects the power supply terminal 230 and the sub-control board terminal 530. The device side terminal 430 contacts the power supply terminal 230, and the relay terminal 433 contacts the sub-control board terminal 530. The contact portion forming member 403D electrically connects 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 connects 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.

[0069] When the liquid storage container 100 is attached to the storage unit 4, the terminals 210, 220, 230, 240, 250 are electrically connected by coming into contact with the device-side terminals 410, 420, 430, 440, 450. The device-side terminals 410, 420, 430, 440, 450 of the connection mechanism 400 are electrically connected by coming into contact with a sub-control board terminal 590 on the sub-control board 500. The sub-control board terminal 590 of the sub-control board 500 is electrically connected to the sub-controller 50 by wiring. As a result, the terminals 210, 220, 230, 240, 250 are electrically connected to the sub-controller 50.

[0070] The positional relationship between each contact cp in the liquid container 100 and each contact cp and other elements, for example, the first virtual line C1, also applies to the contact dcp of the device-side terminals 410 to 450. The arrangement of the contacts cp in the liquid container 100 and the arrangement of the contact dcp of the device-side terminal 490 are in a mirror image relationship. As shown in FIG. 7B, the contact dcp of the device-side data terminal 410 is also called a device-side data contact dcpd. The contact dcp of the device-side clock terminal 420 is also called a device-side clock contact dcpc. The contact dcp of the device-side power supply terminal 430 is also called a device-side power supply contact dcpvd. The contact dcp of the device-side reset terminal 440 is also called a device-side reset contact dcpr. The contact dcp of the device-side ground terminal 450 is also called a device-side ground contact dcpvs.

[0071] As shown in Fig. 7B, the connection mechanism 400 is viewed from above. Two straight lines intersecting at right angles are defined as a first virtual line C1 and a second virtual line C2. In Fig. 7B, the first virtual line C1 is oriented along the first direction FD, and the second virtual line C2 is oriented along the second direction SD. In this embodiment, two straight lines intersecting at right angles that are substantially aligned along the surface of the terminal holding portion 405 are defined as the first virtual line C1 and the second virtual line C2.

[0072] It is assumed that the contact parts dcp of all the device side terminals of the connection mechanism 400 are projected onto the second virtual line C2. In this embodiment, it is assumed that the device side data contact part dcpd corresponding to the data terminal 210, the device side clock contact part dcpc corresponding to the clock terminal 220, the device side power contact part dcpvd corresponding to the power terminal 230, the device side reset contact part dcpr corresponding to the reset terminal 240, and the device side ground contact part dcpvs corresponding to the ground terminal 250 are projected onto the second virtual line C2. Regarding the projection positions of the contact parts dcp of the device side terminals, the projection position of the device side data contact part dcpd is swd, the projection position of the device side clock contact part dcpc is swc, the projection position of the device side power contact part dcpvd is swvd, the projection position of the device side reset contact part dcpr is swr, and the projection position of the device side ground contact part dcpvs is swvs. Each projection position swd, swc, swvd, swr, and swvs is an orthogonal projection perpendicular to the second virtual line C2 from the contact dcp of each device side terminal. At this time, the contact dcp of all device side terminals is projected to different positions. The device side data contact dcpd, the device side clock contact dcpc, the device side power contact dcpvd, the device side reset contact dcpr, and the device side ground contact dcpvs are projected to different positions. The device side data contact dcpd, the device side clock contact dcpc, the device side power contact dcpvd, the device side reset contact dcpr, and the device side ground contact dcpvs are arranged so that the respective virtual lines along the first virtual line C1 passing through the contact dcp of each device side terminal are parallel without overlapping or intersecting each other. Also, at this time, the first virtual line C1 passes through the midpoint MP between the two most distant projection positions of the contact dcp of all device side terminals. In this embodiment, a first virtual line C1 passes through the midpoint MP between the projection position swvs of the device side ground contact portion dcpvs and 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 contact portion dcpvd, and the device side reset contact portion dcpr.In this embodiment, the first virtual line C1 passes through the middle between the projection position swc of the device-side clock contact portion dcpc and the projection position swvs of the device-side ground contact portion dcpvs.

[0073] With respect to the first virtual line C1, one region of the connection mechanism 400 is defined as a first region Rg1, and the other region of the connection mechanism 400 is defined as a second region Rg2. In this case, the device-side terminals 410, 420, 430, and 440 are arranged in the first region Rg1, and the device-side terminal 450 is arranged in the second region Rg2. In this embodiment, the first region Rg1 is an area 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 an area on the -X direction side, which is the negative direction of the second direction SD, of the first virtual line C1. C1 The first region Rg1 is a region on the +X direction side, which is the positive direction of the second direction SD, relative to the first region Rg2. The first region Rg1 is also one region of the connection mechanism 400 sandwiching the first virtual line C1, and the second region Rg2 is the other region of the connection mechanism 400 sandwiching the first virtual line C1. Of the contact parts dcp of all the device side terminals, some contact parts dcpa ​​are arranged in the first region Rg1, and the remaining contact parts dcpb are arranged in the second region Rg2. The some contact parts dcpa ​​arranged in the first region Rg1 include the device side data contact part dcpd, the device side clock contact part dcpc, the device side power contact part dcpv, and the device side reset contact part dcpr. The remaining contact parts dcpb arranged in the second region Rg2 include the device side ground contact part dcpvs. On one side of the first virtual line C1, the device side clock contact dcpc, the device side data contact dcpd, the device side reset contact dcpr, and the device side power contact dcpvd are arranged, and on the other side, the device side ground contact dcpvs is arranged. Some of the contacts dcpa ​​and the remaining contacts dcpb are arranged asymmetrically with respect to the first virtual line C1. The contacts dcp of the device side terminals are not provided on the first virtual line C1.

[0074] As shown in FIG. 7B, the device side ground contact dcpvs is disposed at the end of the contacts dcp of the multiple device side terminals in the +X direction, which is the positive direction of the second direction SD. The contact dcp of any one of the device side terminals among the device side clock contact dcpc, the device side data contact dcpd, the device side power contact dcpvd, and the device side reset contact dcpr is disposed at the end of the contacts dcp of the multiple device side terminals in the -X direction, which is the negative direction of the second direction SD. The contact dcp of this any one device side terminal is located at the end of the contacts dcp of the multiple device side terminals in the second direction SD. The device side ground contact dcpvs is located at the end of the contacts dcp of the multiple device side terminals in the second direction SD. In the first region Rg1, among the contact portions dcp of the device side terminal excluding the device side ground contact portion dcpvs, the distance in the direction along the second virtual line C2 between the contact portion dcp that is projected at the position farthest from the projection position swvs when projected onto the second virtual line C2 and the device side ground contact portion dcpvs provided in the second region Rg2 is Wa.

[0075] The device-side data contact dcpd, the device-side clock contact dcpc, the device-side power contact dcpd, and the device-side reset contact dcpr are preferably arranged away from the device-side ground terminal contact dcpvs. For example, in the first region Rg1, among the contacts dcp of the device-side terminal 490 excluding the device-side ground contact dcpvs, the distance in the direction along the second virtual line C2 between the contact dcp that is projected to the position closest to the projection position swvs when projected onto the second virtual line C2 and the device-side ground contact dcpvs provided in the second region Rg2 is Wa / 2 or more. For example, in the first region Rg1, among the contact parts dcp of the device side terminals excluding the device side ground contact part dcpvs, between the contact part dcp of the device side terminal projected to the position closest to the projection position swvs when projected onto the second virtual line C2 and the device side ground contact part dcpvs provided in the second region Rg2, there is no contact part dcp of other device side terminals. In this embodiment, in the region between the device side reset contact part dcpr provided at the end of the +X direction side, which is the positive direction of the second direction SD, in the first region Rg1, and the device side ground contact part dcpvs provided in the second region Rg2, there is no contact part dcp of other device side terminals. For example, the contact parts dcp and the device side ground contact part dcpvs of the device side terminals 410 to 440 are not provided on the first virtual line C1.

[0076] Between the projection position swd of the device side data contact dcpd and the projection position swvs of the device side ground contact dcpvs, at least one contact dcp of the device side terminal among the device side clock contact dcpc, the device side power contact dcpvd, and the device side reset contact dcpr is projected. Preferably, between the projection position swd of the device side data contact dcpd and the projection position swvs of the device side ground contact dcpvs, at least two contact dcp of the device side terminal among the device side clock contact dcpc, the device side power contact dcpvd, and the device side reset contact dcpr is projected.

[0077] The device side data terminal dcpd is arranged so as to be projected between the projection positions of the contacts dcp of any two device side terminals among the device side clock contact dcpc, the device side power contact dcpvd, and the device side reset contact dcpr. The device side data contact dcpd is not the contact projected to the extreme end on the second virtual line C2. In this embodiment, the device side data contact dcpd is arranged so as to be projected between the projection positions of the device side clock contact dcpc and the device side power contact dcpvd.

[0078] Between the projection position swvd of the device side power contact dcpvd and the projection position swc of the device side clock contact dcpc, either one or both of the device side data contact dcpd and the device side reset contact dcpr are projected. Also, the device side reset contact dcpr is arranged so that its projection position swr is adjacent to the projection position swvd of the device side power contact dcpvd. In this embodiment, between the projection position swvd of the device side power contact dcpvd and the projection position swc of the device side clock contact dcpc, the device side data contact dcpd is projected.

[0079] The device side power contact dcpr is arranged so that its projection position swvd is adjacent to the projection position swd of the device side data contact dcpd.

[0080] In this embodiment, the device side clock contact dcpc is arranged so as to be projected at a position farthest from the projection position swvs of the device side ground contact dcpvs. Also, the device side data contact dcpd, the device side power contact dcpvd, and the device side reset contact dcpr are arranged so as to be projected in order in a direction from the projection position swc of the device side clock contact dcpc on the second virtual line C2 toward the projection position swvs of the device side ground contact dcpvs. The device side clock contact dcpc is located at the very end in the -X direction, which is the negative direction of the second direction SD. The contacts dcp of the device side terminals other than the device side clock contact dcpc are projected in the negative direction of the second direction SD. isFrom the -X direction toward the positive +X direction, the device side data contact dcpd, the device side power contact dcpvd, and the device side reset contact dcpr are arranged in this order. The contacts dcp of the multiple device side terminals are arranged so that their respective projection positions from the -X direction toward the +X direction are in the order of the device side clock contact dcpc, the device side data contact dcpd, the device side power contact dcpvd, the device side reset contact dcpr, and the device side ground contact dcpvs.

[0081] The device side clock contact dcpc, the device side data contact dcpd, the device side power contact dcpvd, the device side reset contact dcpr, and the device side ground contact dcpvs are arranged to form a plurality of columns. The columns are parallel to the second virtual line C2 and perpendicular to the first virtual line C1. In this embodiment, the contacts dcp of the device side terminals are arranged to form two columns perpendicular to the first direction FD, and the direction of the two columns is parallel to the second direction SD. The direction in which the two columns are arranged is along the first virtual line C1, which is along the first direction FD in this embodiment. The two columns are called the first column R1 and the second column R2. The first column R1 is formed by the device side clock contact dcpc, the device side power contact dcpvd, and the device side ground contact dcpvs. The second column R2 is formed by the device side data contact dcpd and the device side reset contact dcpr. The device side data contact dcpd and device side reset contact dcpr forming the second row R2, and the device side clock contact dcpc, device side power contact dcpvd, and device side ground contact dcpvs forming the first row R1 are arranged alternately so that the contacts dcp are not aligned in the direction of the first virtual line C1, forming a so-called staggered arrangement. When projected onto the second virtual line C2, the contacts dcp of two adjacent device side terminals projected next to each other form different rows. The device side data contact dcpd and the device side ground contact dcpvs are arranged in different rows. Between the projection position swd of the device side data contact dcpd and the projection position swvs of the device side ground contact dcpvs, the contacts dcp of any of the device side terminals among the device side clock contact dcpc, device side power contact dcpvd, and device side reset contact dcpr are arranged so as to be projected. In this embodiment, the device side reset contact dcpr and the device side power contact dcpvd are arranged so as to be projected between the projection position swd of the device side data contact dcpd and the projection position swvs of the device side ground contact dcpvs. In this embodiment, the contact parts dcp of each device side terminal 410-450 are arranged so as to form a first row R1 and a second row R2, but this is not limited thereto. For example, the contact parts dcp of each device side terminal 410-450 may be arranged so as to form three or four rows.A row may also be formed by the contact portion dcp of one device side terminal.

[0082] The distance between the device side ground contact dcpvs and the device side reset contact dcpr is the distance DAn. The distance between the device side data contact dcpd and the device side clock contact dcpc is the distance DBn. ​​The distance between the device side data contact dcpd and the device side ground contact dcpvs is the distance DCn. The distance between the device side data contact dcpd and the device side reset contact dcpr is the distance DDn. The distance between the device side data contact dcpd and the device side power contact dcpvd is the distance DEn. In this embodiment, 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 this embodiment, the distance DBn and the distance DEn are the same. The distance between the device side data contact dcpd and the contact dcp of the device side terminal farthest from the device side data contact dcpd among the contacts dcp of the multiple device side terminals excluding the device side ground contact 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.

[0083] The virtual line segment connecting the device side clock contact dcpc and the device side data contact dcpd is the first line segment fL, the virtual line segment connecting the device side reset contact dcpr and the device side data contact dcpd is the second line segment sL, and the virtual line segment connecting the device side power contact dcpvd and the device side data contact dcpd is the third line segment tL. On the first line segment fL, there is no contact dcp of another device side terminal other than the device side clock contact dcpc and the device side data contact dcpd. On the second line segment sL, there is no contact dcp of another device side terminal other than the device side reset contact dcpr and the device side data contact dcpd. On the third line segment tL, there is no contact dcp of another device side terminal other than the device side power contact dcpvd and the device side data contact dcpd.

[0084] The data terminal 210 can also be called a first terminal. The clock terminal 220 can also be called a second terminal included in the other terminals. The reset terminal 240 can also be called a third terminal included in the other terminals. The power terminal 230 can also be called a fourth terminal included in the other terminals. The ground terminal 250 can also be called a fifth terminal included in the other terminals. The data contact portion cpd can also be called a first contact portion. The clock contact portion cpc can also be called a second contact portion. The reset contact portion cpr can also be called a third contact portion. The power contact portion cpvd can also be called a fourth contact portion. The ground contact portion cpvs can also be called a fifth contact portion. The terminals other than the first terminal can also be called a group of other terminals. The terminals provided on the substrate 120 or the liquid storage container 100, such as the terminals 210 to 250, can also be called substrate side terminals or container side terminals.

[0085] The device side terminal 410 can also be called the first device side terminal. The device side terminal 420 can also be called the second device side terminal. The device side terminal 430 can also be called the third device side terminal. The device side terminal 440 can also be called the fourth device side terminal. The device side terminal 450 can also be called the fifth device side terminal. The projection position of the first device side terminal 410 can also be called the first projection position. The projection position of the second device side terminal 420 can also be called the second projection position. The projection position of the third device side terminal 430 can also be called the third projection position. The projection position of the fourth device side terminal 440 can also be called the fourth projection position. The projection position of the fifth device side terminal 450 can also be called the fifth projection position.

[0086] A2. Explain the different states of the printing system: In this disclosure, the "attachment complete state" refers to a state in which the liquid storage container 100 is attached to the printing device 20 and no short circuit occurs between the terminals 290. As described above, in this disclosure, "the liquid storage container 100 is attached to the printing device 20" refers to a state in which the liquid storage container 100 is physically attached to the printing device 20 and the contact portion cp of the terminal 290 is electrically connected to the device-side terminal 490. The attachment complete state is a state in which communication is possible between the printing device 20 and the device 130. The "non-attachment complete state" refers to a state in which the liquid storage container 100 is not attached to the storage unit 4 of the printing device 20, or a state in which the liquid storage container 100 is attached to the storage unit 4 of the printing device 20 but poor contact occurs between the device-side terminal 490 and the contact portion cp. The "short circuit state" refers to a state in which the liquid storage container 100 is attached to the storage unit 4 of the printing device 20 but a short circuit occurs between the terminals 290. For example, when the data terminal 210 and the clock terminal 220 are shorted, it is said that "the data terminal 210 and the clock terminal 220 are in a shorted state."

[0087] The "connection state" refers to any one of (i) a fully-attached state, (ii) a non-fully-attached state, and (iii) a short-circuited state. The "determination of the connection state" refers to determining which of the above-mentioned (i) to (iii) states the liquid storage container 100 is in.

[0088] A3. Electrical and software configuration: A3-1. Electrical configuration: FIG. 8 is a diagram showing a schematic electrical configuration of the printing system 1000. In FIG. 8, when the substrates 120 and devices 130 of the four liquid containers 100A, 100B, 100C, and 100D are to be distinguished from one another, the names are suffixed with "A", "B", "C", and "D". Each of the devices 130A to 130D stores identification information of the liquid containers 100A to 100D. For example, each of the devices 130A to 130D stores information about the liquid contained in the liquid containers 100A to 100D. The identification information is represented by ID=1 to 4 in FIG. 8. The main control unit 40 and the sub-control unit 50 constitute a control unit 39 that controls the operation of the printing device 20.

[0089] The sub-controller 50 and the liquid containers 100A-100D are electrically connected by a plurality of lines. The plurality of lines include a reset line LRST, a clock line LSCK, a power line LVDD, a data line LSDA, and a ground line LVSS. The reset line LRST, the clock line LSCK, the power line LVDD, and the data line LSDA are provided independently for each of the liquid containers 100A-100D. The ground line LVSS is provided in common to the liquid containers 100A-100D. When it is necessary to distinguish the lines electrically connected to the corresponding liquid containers 100A-100D for the reset line LRST, the clock line LSCK, the power line LVDD, and the data line LSDA, "1" to "4" are added to the end of the line. These "1" to "4" correspond to the identification information "1" to "4" of the liquid containers 100A-100D.

[0090] In the sub-controller 50, the terminal that outputs the reset signal RST is the host terminal HRST, the terminal that outputs the clock signal SCK is the host terminal HSCK, the terminal that outputs the power supply voltage VDD is the host terminal HVDD, and the terminal that outputs and inputs the data signal SDA is the host terminal HSDA. The host terminal HVSS is grounded. When the host terminals HSDA, HRST, HSCK, and HVDD are to be distinguished from the terminals connected to the corresponding liquid storage containers 100A to 100D, "1" to "4" are added to the end of the host terminals. These "1" to "4" correspond to the identification information "1" to "4" of the liquid storage containers 100A to 100D. The sub-controller 50 and the main controller 40 are electrically connected via a bus 46. The sub-controller 50 transmits various signals and voltages individually to the devices 130A to 130D of the liquid storage containers 100A to 100D via a connection bus 45 including the lines LRST, LSCK, LVDD, LSDA, and LVSS.

[0091] The reset line LRST is a conductive line used by the control unit 39 to transmit a reset signal RST to the device 130. The reset signal RST is a signal that makes the device 130 ready to accept a request signal RS, which will be described later. When the reset signal RST transmitted by the control unit 39 to the device 130 changes from high level to low level, the part of the processing unit 136 that accepts the request signal RS is initialized, and when the reset signal RST changes from low level to high level, a new request signal RS can be accepted. The clock line LSCK is a conductive line used by the control unit 39 to transmit a clock signal SCK to the device 130. The clock signal SCK is a signal that alternates between a low level and a high level and is repeated at a predetermined period. The data line LSDA is a conductive line used to transmit and receive a data signal SDA between the control unit 39 and the device 130. The data signal SDA is transmitted and received in synchronization with the clock signal SCK in order to synchronize the control unit 39 and the device 130. For example, the data signal SDA is transmitted and received with 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 are either high level or low level. Hereinafter, the high level is also represented by the symbol "H" or "1", and the low level is also represented by the symbol "L" or "0". The host terminal HSDA connected to the data line LSDA is grounded via a pull-down resistor in the sub-controller 50. As a result, when the data signal SDA is not being transmitted or received between the sub-controller 50 and the device 130, the drive state of the host terminal HSDA of the sub-controller 50 is maintained at a low level.

[0092] The ground line LVSS is a conductive line that determines the ground potential VSS of the device 130. The ground potential VSS is set to, for example, 0V. The power supply line LVDD is a conductive line used by the control unit 39 to supply the power supply voltage VDD, which is the operating voltage, to the device 130. The power supply voltage VDD is a voltage higher than a predetermined threshold. In this embodiment, the power supply voltage VDD uses a potential of, for example, about 3.3V with respect to the ground potential VSS. Note that the potential used for the power supply voltage VDD may be different depending on the type of the device 130.

[0093] FIG. 9 is a diagram showing the functional configuration of the printing device 20 together with one liquid container 100. The printing device 20 includes a display panel 495, a power supply 441, a main control unit 40, and a sub-control unit 50. The display panel 495 is used to notify the user of the operating state of the printing device 20, errors in the liquid containers 100A-100D, the ink consumption amount stored in the device 130, the ink color, the manufacturing date, and the like. When the liquid container 100 is in a mounting complete state, the display panel 495 displays, for example, a display informing the user that the liquid container 100 has been mounted, a display indicating that the printing system 1000 is in a printing-enabled state, and a display of the remaining amount of ink contained in the liquid container 100. The display panel 495 is provided, for example, in the operation unit 70 of FIG. 2. The power supply 441 is a normal power supply used in logic circuits, and is rated at 3.3 V. The voltage of the power supply 441 is supplied to the sub-controller 50, and also to other circuits as necessary.

[0094] The main control unit 40 has a CPU 415 and an apparatus-side first storage unit 416. The CPU 415 controls the operation of the printing device 20 by executing various programs stored in the apparatus-side first storage unit 416. For example, the main control unit 40 controls the operation of the display panel 495 and the operation of the sub-control unit 50. The CPU 415 functions as a determination unit 411 by executing various programs stored in the apparatus-side first storage unit 416. The determination unit 411 has an attachment determination unit 412 and a short-circuit determination unit 414. The attachment determination unit 412 determines whether or not the liquid storage container 100 is attached. The short-circuit determination unit 414 determines whether or not a short circuit has occurred between the terminals 290. The sub-controller 50 includes a switching unit 511 and a device-side second storage unit 516. The switching unit 511 is composed of a register (not shown) and an analog switch (not shown) connected to the register. When the CPU 415 writes "1" to the register, the analog switch becomes conductive. This switches the CPU 415 and the board 120 to a connected state. When the CPU 415 writes "0" to the register, the analog switch becomes non-conductive. This switches the CPU 415 and the board 120 to a disconnected state.

[0095] The device-side second storage unit 516 stores the determination information. The determination information is information used in a process of determining the connection state, which will be described later. The determination information is information in which a voltage output from the data terminal 210 in response to a request signal RS, which will be described later, is set as a detection value. The determination unit 411 reads out the determination information from the device-side second storage unit 516 when performing the process of determining the connection state.

[0096] The sub-controller 50 transmits a request signal RS to each of the devices 130A-130D of the liquid containers 100A-100D via the connection bus 45. The request signal RS is output from the host terminal HSDA of the sub-controller 50 and input to each of the data terminals 210 of the liquid containers 100A-100D. The request signal RS includes a command that can identify the liquid containers 100A-100D that are to respond to the request signal RS for each of the devices 130A-130D. The determination unit 411 performs a process of determining the connection state of the liquid containers 100A-100D using the voltage output from each of the data terminals 210 of the liquid containers 100A-100D in response to the request signal RS. The request signal RS will be described in detail later.

[0097] 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 and received triggered by the rising or falling edge of the clock signal SCK. The processing unit 136 controls signals and voltages input and output to the terminals 210 to 250. For example, the processing unit 136 outputs response signals FS and SS to the data terminal 210 via the data line LSDA in response to a request signal RS. The processing unit 136 includes a three-state buffer. The three-state buffer has three driving states: a state in which a low-level voltage is output, a state in which a high-level voltage is output, and a high-impedance state. The three-state buffer is connected to the data terminal 210. For this reason, in this disclosure, the terms "low level," "high level," and "high impedance" are used to indicate the driving states of the data terminal 210. The storage unit 138 is configured by a memory cell array in which a plurality of memory cells are arranged in a two-dimensional matrix. The processing unit 136 and the storage unit 138 are connected by bit lines and word lines. The processing unit 136 is electrically connected to each of the terminals 210 to 250 and the storage unit 138.

[0098] A3-2. Overview of software configuration (connection status determination process): 10A and 10B, a connection state determination process executed by the printing system 1000 will be described. Fig. 10A is a flowchart of the connection state determination process executed by the printing device 20. Fig. 10B is a flowchart of the connection state determination process executed by the device 130.

[0099] As shown in FIG. 10A, in the connection state determination process, the printing device 20 executes the following process. In step S301, the sub-controller 50 transmits a request signal RS to the device 130 of the liquid container 100. Thereafter, the sub-controller 50 detects the voltage output from the data terminal 210 of the liquid container 100. Specifically, in step S302, the sub-controller 50 detects the voltage output from the data terminal 210 of the liquid container 100 at a predetermined first timing t1. In step S303, the sub-controller 50 detects the voltage output from the data terminal 210 of the liquid container 100 at a predetermined second timing t2. In step S304, the sub-controller 50 detects the voltage output from the data terminal 210 of the liquid container 100 at a predetermined third timing t3. The first timing t1 to the third timing t3 are different timings. The voltages detected by the sub-controller 50 at the first timing t1 to the third timing t3 are stored as detection values ​​in the device-side second storage unit 516 of the sub-controller 50. In step S305, the determination unit 411 of the main control unit 40 reads out the detection values ​​from the device-side second storage unit 516. In step S306, the main control unit 40 determines the connection state based on the detection values ​​detected by the sub-controller 50 at the first timing t1 to the third timing t3.

[0100] As shown in FIG. 10B, in the connection state determination process, the device 130 performs the following process. In step S101, the processing unit 136 of the device 130 determines whether or not a request signal RS has been input from the printing device 20 to the data terminal 210. If it is determined that the request signal RS has been input to the data terminal 210, the processing unit 136 SIn step S102, the processing unit 136 of the device 130 determines whether or not a response to the printing device 20 is being requested. If it is determined that a response to the printing device 20 is being requested, the processing unit 136 of the device 130 outputs a first response signal FS to the data terminal 210 in step S103. After outputting the first response signal FS, the processing unit 136 of the device 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 a response to the printing device 20 is not being requested, the processing unit 136 of the device 130 ends the process.

[0101] With reference to Figs. 11A to 11D, the outline and output timing of the request signal RS, the first response signal FS, and the second response signal SS will be described. Fig. 11A is a timing chart when the printer 20 outputs the request signal RS to the data terminal 210. Fig. 11B is a timing chart when the device 130 outputs the first response signal FS and the second response signal SS to the data terminal 210. Fig. 11C is a diagram showing details of the first response signal FS. Fig. 11D is a diagram showing details of the second response signal SS. The timing chart of Fig. 11B is executed following the timing chart of Fig. 11A. 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 driving state of the terminal 290 is high impedance, and indicates that no signal is output from the terminal 290. The host terminal HSDA of the sub-controller 50 is grounded via a pull-down resistor. Therefore, the control unit 39 cannot distinguish between the driving state of the terminal 290 being high impedance and no signal being output from the terminal 290, and the terminal 290 outputting a low-level voltage. However, for example, by using a pull-up resistor connecting the data terminal 210 and the power terminal 230, the driving state of the data terminal 290 can be confirmed to be high impedance. VDD, RST, SCK, and SDA1 to SDA4 shown in FIG. 11A and the like mean signals transmitted and received through the corresponding terminal 290 or voltages supplied by the corresponding lines LVDD, LRST, LSCK, and LSDA1 to LSDA4. Cycles D1 to D9 in the command period CMT, the first response period RT1, and the second response period RT2 represent unit periods in which the low level and high level of the clock signal SCK are repeated in each period. The clock signal SCK in this unit period is called a "period."

[0102] 11A and 11B are executed with a predetermined timing as a trigger. The predetermined timing is, for example, the timing when the printing device 20 is started and the power supply 441 is turned ON, the timing when the liquid storage container 100 is replaced, the timing when an instruction is received from the user, or the timing when the printing device 20 is not printing and the carriage 30 is located at the home position. An example of execution with the timing when the power supply 441 is turned ON as a trigger will be described below.

[0103] 11A, the control unit 39 first sets the power supply voltage VDD to a high level. After the power supply voltage VDD has been set to a high level, the control unit 39 sets the reset signal RST from a low level to a high level after a predetermined time has elapsed. After setting the reset signal RST to a high level, the control unit 39 transmits a clock signal SCK to the device 130. After setting the reset signal RST to a high level, the control unit 39 transmits a request signal RS to the device 130. 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.

[0104] The request signal RS will be described in detail. After the control unit 39 sets the reset signal RST to a high level, it transmits a first execution command BCC1 to the devices 130A to 130D in cycles D1 and D2 of the command period CMT. The first execution command BCC1 is 2-bit data, and is a command that indicates that the main control unit 40 executes a process for determining the connection state. The control unit 39 generates the first execution command BCC1 by setting the voltage to a high level in cycle D1 and to a low level in cycle D2.

[0105] After the first execution command BCC1, the control unit 39 transmits the first identification data DB1 to the devices 130A-130D in cycles D3-D8. The first identification data DB1 is 6-bit data and identifies the liquid containers 100A-100D for which a response is requested. In the first identification data DB1, a corresponding bit is assigned to each of the devices 130A-130D. The first bit, cycle D3, and the second bit, cycle D4, can be used in another embodiment when the printing device 20 is equipped with six liquid containers 100. In the first identification data DB1, the third bit, cycle D5, corresponds to the liquid container 100D, the fourth bit, cycle D6, corresponds to the liquid container 100C, the fifth bit, cycle D7, corresponds to the liquid container 100B, and the sixth bit, cycle D8, corresponds to the liquid container 100A. The first identification data DB1 transmitted to the device 130A of the liquid 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 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 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 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 containers 100A to 100D.

[0106] After 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 this embodiment, the first parity data P1 is odd parity.

[0107] After the first parity data P1, the control unit 39 transmits a 2-bit second execution command BCC2 to the devices 130A-130D. The second execution command BCC2 is the same data as the first execution command BCC1 but without inverting it. After the second execution command BCC2, the control unit 39 transmits 6-bit second identification data DB2 to the devices 130A-130D. The second identification data DB2 is the same data as the first identification data DB1 but without inverting it. After the second identification data DB2, the control unit 39 transmits 1-bit second parity data P2 to the devices 130A-130D.

[0108] The first execution command BCC1, the first identification data DB1, and the first parity data P1 are collectively referred to as the first command. The second execution command BCC2, the second identification data DB2, and the second parity data P2 are collectively referred to as the second command. Of the command period CMT, the period during which the control unit 39 transmits the first command to the device 130 is also referred to as the first command period. Of the command period CMT, the period during which the control unit 39 transmits the second command to the device 130 is also referred to as the second command period. The first command and the second command are the same data that are not inverted. In other embodiments, the first command and the second command may be inverted with respect to each other.

[0109] As described above, the power supply voltage VDD is first input from the printer 20 to the power supply terminal 230 of the device 130. After the power supply voltage VDD is input from the printer 20 to the power supply terminal 230 of the device 130, the reset signal RST changes from a low reset voltage to a high reset voltage, and the high reset voltage is input from the printer 20 to the reset terminal 240 of the device 130. After the high reset voltage is input from the printer 20 to the reset terminal 240 of the device 130, the clock signal SCK is input from the printer 20 to the clock terminal 220 of the device 130. After the high reset voltage is input from the printer 20 to the reset terminal 240 of the device 130, the request signal RS is input from the printer 20 to the data terminal 210 of the device 130. Here, the power supply voltage VDD is a voltage as a high level higher than the threshold value. The reset signal RST is a signal including 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 the reference reset voltage as a threshold value, and the high reset voltage is a voltage higher than the reference reset voltage as a threshold value. The reference reset voltage is a voltage that serves as a reference for determining whether a high level or a low level is selected. 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 that is higher than the low clock voltage are alternately repeated at a predetermined period. The low clock voltage is a voltage lower than the reference clock voltage as a threshold value, and the high clock voltage is a voltage higher than the reference clock voltage as a threshold value. The reference clock voltage is a voltage that serves as a reference for determining whether a high level or a low level is selected. Each threshold value is set, for example, between the potential of the power supply 441 and the ground potential.

[0110] As shown in FIG. 11B, after the request signal RS is sent from the control unit 39 to the device 130, the device 130, which is requested to respond to the printing device 20, outputs a first response signal FS and a second response signal SS to the data terminal 210. FS and the second response signal SSis a signal used by the printing device 20 to determine that the data terminal 210 is not shorted to the clock terminal 220, the power terminal 230, and the reset terminal 240, and that the liquid container 100 is attached to the printing device 20. The request signal RS has a waveform that individually specifies the liquid containers 100A-100D in the first identification data DB1. When the devices 130A-130D receive a request signal RS that specifies them from the printing device 20, they output a first response signal FS and a second response signal SS to the data terminal 210. The first response signal FS is output during a first response period RT1. The second response signal SS is output during a second response period RT2, which is the period following the first response period RT1.

[0111] In the first response period RT1, first, in cycles D1 and D2, a direction switching process of a signal transmitted and received by the printer 20 via the data line LSDA is executed. After transmitting a request signal RS to the device 130, the control unit 39 sets the potential of the data line LSDA to 0V in cycle D1 to discharge the charge of the data line LSDA. Thereafter, in cycle D2, the control unit 39 sets the drive state of the host terminal HSDA of the sub-controller 50 to high impedance. This puts the printer 20 in a state in which a signal can be input. Meanwhile, 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 high impedance in cycle D1. This is to prevent a signal from being output from the data terminal 210 while the charge of the data line LSDA is being discharged by the control unit 39 of the printer 20. Similarly, in cycle D2, the processing unit 136 of the device 130 sets the drive state of the data terminal 210 to high impedance. The first two bits of the first response period RT1 also function as dummy bits to make the number of bits of the request signal RS and the signal of the first response period RT1 the same. The number of cycles of the clock signal SCK that constitutes the first response period RT1 is the same as the number of cycles of the clock signal SCK with which the request signal RS is synchronized.

[0112] Next, the cycle D5 In cycles D1 to D8, the processing unit 136 of each device 130 outputs a first response signal FS to the data terminal 210 at a predetermined timing. The first response signal FS is output from different processing units 136A to 136D for each period of the clock signal SCK. The first response signal FS includes a low-level voltage. As shown in FIG. 11C, the first response signal FS is a signal output to the data terminal 210 during a period in which the clock signal SCK is at a high level. The first response signal FS is at a low level during a period in which the clock signal SCK is at a high level. When the voltage input to the clock terminal 220 changes from a low level to a high level, the processing unit 136 of the device 130 outputs a low-level voltage to the data terminal 210.

[0113] As described above, the first response signal FS includes a low first response voltage as a low level lower than the reference first response voltage as a threshold value. The reference first response voltage is a voltage that is a reference for determining whether the low level or the high level is, for example, set between the voltage of the power supply 441 and the voltage of the ground potential.

[0114] As shown in FIG. 11B, the first timing t1 is a cycle of the first response period RT1. D5 In each of cycles D1 to D8, the clock signal SCK is set to a high level period. The first timing t1 is set to a period in which the first response signal FS is at a low level. As shown in Fig. 11C, the device 130 outputs a low level voltage to the data terminal 210 before the first timing t1 during the period in which the clock signal SCK is at a high level in one period of the clock signal SCK.

[0115] As shown in FIG. 11B, a cycle D9 of the first response period RT1 functions as a dummy bit that makes the number of bits of the first command period and the first response period RT1 the same.

[0116] In the second response period RT2, as shown in FIG. 11B, the control unit 39 releases the charge on the data line LSDA by setting the potential of the data line LSDA to 0V. In cycle D1, the processing unit 136 of the device 130 sets the driving state of the data terminal 210 to high impedance. In cycle D2, the processing unit 136 of the device 130 also sets the driving state of the data terminal 210 to high impedance. The first two bits of this second response period RT2 also function as dummy bits that make the number of bits of the request signal RS and the signal in the second response period RT2 the same. The number of cycles of the clock signal SCK that constitutes the second response period RT2 is the same as the number of cycles of the clock signal SCK with which the request signal RS is synchronized.

[0117] Next, the cycle D5 In cycles D1 to D8, the processing unit 136 of each device 130 outputs a 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-level voltage and a high-level voltage. As shown in FIG. 11D, the waveform of the second response signal SS is in opposite phase to the waveform of the clock signal SCK input to the clock terminal 220. The second response signal SS includes a high level during a period when the clock signal SCK is at a low level, and includes a low level during a period when the clock signal SCK is at a high level.

[0118] As described above, the second response signal SS includes a low second response voltage as a low level and a high second response voltage as a high level higher than the low second response voltage. The low second response voltage is a voltage lower than the reference second response voltage as a threshold, and the high second response voltage is a voltage higher than the reference second response voltage as a threshold. The reference second response voltage is a voltage that serves as a reference for determining whether the low level or the high level is, for example, set between the voltage of the power supply 441 and the voltage of the ground potential. The reference second response voltage may be the same as or different from the reference first response voltage. The waveform of the second response signal SS is different from the waveform of the first response signal FS.

[0119] As shown in FIG. 11B, the second timing t2 is a cycle of the second response period RT2. D5 In each of cycles D1 to D8, the clock signal SCK is set to a low level period. The second timing t2 is set to a period in which the second response signal SS is at a high level. The third timing t3 is set to a period in which the second response period RT2 is at a high level. D5 In each of cycles D1 to D8, the clock signal SCK is set to a period during which it is at a high level. The third timing t3 is set to a period during which the second response signal SS is at a low level. As shown in FIG. 11D, the device 130 outputs a high-level voltage to the data terminal 210 before the second timing t2 during a period during which the clock signal SCK is at a low level in one period of the clock signal SCK. The device 130 outputs a low-level voltage to the data terminal 210 before the third timing t3 during a period during which the clock signal SCK is at a high level in one period of the clock signal SCK.

[0120] As shown in FIG. 11B, a cycle D9 of the second response period RT2 functions as dummy bit data that makes the number of bits in the second command period and the second response period RT2 the same.

[0121] The output periods of the first response signal FS and the second response signal SS are different for each of the devices 130A to 130D of the liquid containers 100A to 100D. In this embodiment, the device 130 outputs the first response signal FS and the second response signal SS in one period of the clock signal SCK corresponding to the identification information. As shown in FIG. 11B, the liquid container 100A outputs the first response signal FS and the second response signal SS to the data terminal 210 in cycle D8 of each of the first response period RT1 and the second response period RT2. The liquid container 100B outputs the first response signal FS and the second response signal SS to the data terminal 210 in cycle D7 of each of the first response period RT1 and the second response period RT2. The liquid container 100C outputs the first response signal FS and the second response signal SS to the data terminal 210 in cycle D6 of each of the first response period RT1 and the second response period RT2. The liquid storage container 100D outputs a first response signal FS and a second response signal SS to the data terminal 210 in cycle D5 of each of the first response period RT1 and the second response period RT2.

[0122] As shown in FIG. 11B, when a clock signal SCK having a predetermined number of cycles is input to the clock terminal 220, the device 130 outputs a first response signal FS by switching the drive state of the data terminal 210 from high impedance to low level. For example, as shown in FIG. 11B, when 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 outputs a first response signal FS by switching the drive state of the data terminal 210 from high impedance to low level. Drive 11B, after the device 130A outputs the first response signal FS in cycle D8 in the first response period RT1, the device 130A switches the driving state of the data terminal 210 to high impedance, thereby ending the output of the first response signal FS.

[0123] As shown in FIG. 11B, when a clock signal SCK having a predetermined number of cycles is input to the clock terminal 220, the device 130 outputs the second response signal SS by switching the drive state of the data terminal 210 from high impedance to high level. For example, as shown in FIG. 11B, when 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 outputs the second response signal SS by switching the drive state of the data terminal 210 from high impedance to high level. The device 130 ends the output of the second response signal SS by switching the drive state of the data terminal 210 from low level to high impedance. For example, as shown in FIG. 11B, the device 130A outputs the second response signal SS in cycle D8 in the second response period RT2. SS After outputting the second response signal SS, the drive state of the data terminal 210 is switched from low level to high impedance, thereby ending the output of the second response signal SS.

[0124] As described above, after the request signal RS is input to the data terminal 210, the device 130 outputs the first response signal FS to the data terminal 210, and after outputting the first response signal FS, outputs the second response signal SS to the data terminal 210. When the data terminal 210 is not shorted to the clock terminal 220, the power terminal 230, and the reset terminal 240, the device 130 executes the following. As shown in FIG. 11C, the device 130 outputs the clock terminal 220 At a first predetermined timing t1 during a period in which the voltage input to the data terminal 210 is a high clock voltage, the device 130 outputs a low first response voltage as a first expected value to the data terminal 210. As shown in FIG. 11D, after outputting the low first response voltage, the device 220 At a second timing t2 when the voltage input to the data terminal 210 is the low clock voltage, the device 130 outputs a high second response voltage as the second expected value to the data terminal 210. As shown in FIG. 11D, after outputting the high second response voltage, the device 130 220At a third timing t3 when the voltage input to the data terminal 210 is the high clock voltage, the low second response voltage is output to the data terminal 210 as the third expected value.

[0125] The first response signal FS is configured at a low level. The low level of the first response signal FS indicates that the data terminal 210 and the terminals 220, 230, 240, 250 other than the data terminal 210 are not shorted. 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 attached to the printing device 20. The low level of the second response signal SS indicates that the data terminal 210 and the terminals 220, 230, 240, 250 other than the data terminal 210 are not shorted.

[0126] A3-3. Details of software configuration (connection status determination process): The connection state determination process executed by the main control unit 40 will be described with reference to FIG. 12. FIG. 12 is a diagram showing an outline of the connection state determination process executed by the main control unit 40. As shown in FIG. 12, the main control unit 40 determines the connection state using a combination of voltages output from the data terminal 210 of the liquid storage container 100 at the first timing t1 to the third timing t3. As explained above with reference to FIG. 11B, the first timing t1 to the third timing t3 are assigned to periods of cycles D5 to D8 according to the liquid storage containers 100A to 100D. The expected values ​​of the voltages output from the data terminal 210 of the liquid storage container 100 at each of the first timing t1 to the third timing t3 are voltages output from the data terminal 210 when the liquid storage container 100 is in a fully-attached state, and are low level at the first timing t1, high level at the second timing t2, and low level at the third timing t3. Determination section of the main control unit 40 411 In the first case where the voltage output from the data terminal 210 of the liquid container 100 is the same as the expected value, it is determined that the liquid container 100 is in a fully attached state, and that "container present."

[0127] In the 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 timing t1 to the third timing t3, the determination section of the main control section 40 411 In this case, the liquid storage container 100 is not yet fully attached, and it is determined that the liquid storage container 100 is "container absent."

[0128] In the third case where the voltage output from the data terminal 210 of the liquid storage container 100 is high level at the first timing t1, low level at the second timing t2, and high level at the third timing t3, the determination unit of the main control unit 40 411 11B, the voltage output from the data terminal 210 of the liquid storage container 100 is high level at the first timing t1, low level at the second timing t2, and high level at the third timing t3. In this way, when the data terminal 210 and the clock terminal 220 are shorted out of the data terminal 210, the power terminal 230, the reset terminal 240, and the clock terminal 220, the data terminal 210 connected to the device 130 outputs a signal to the control unit 39 of the printing device 20 at the first timing t1 to the third timing t3. Voltage is configured as follows: The voltage output from the data terminal 210 differs from a first expected value at a first timing t1, differs from a second expected value at a second timing t2, and differs from a third expected value at a third timing t3.

[0129] In a fourth case in which the voltage output from the data terminal 210 of the liquid storage container 100 is at a high level at each of the first timing t1 to the third timing t3, the determination section of the main control section 40 411In the case where at least one of the data terminal 210 and the power terminal 230 are shorted or the data terminal 210 and the reset terminal 240 are shorted, it is determined that there is a short circuit. When the data terminal 210 and the power terminal 230 are shorted, or when the data terminal 210 and the reset terminal 240 are shorted, the voltage of the data terminal 210 becomes approximately the same as the voltage of the power terminal 230 and the voltage of the reset terminal 240. As shown in FIG. 11B, in the first response period RT1 and the second response period RT2, the power terminal 230 and the reset terminal 240 are at a high level, so that the voltage output from the data terminal 210 of the liquid storage container 100 becomes a high level at each of the first timing t1 to the third timing t3. In this way, when the data terminal 210 and the power terminal 230 are shorted or when the data terminal 210 and the reset terminal 240 are shorted among the data terminal 210, the power terminal 230, the reset terminal 240, and the clock terminal 220, the voltage output from the data terminal 210 connected to the device 130 to the control unit 39 of the printing device 20 at the first timing t1 to the third timing t3 is as follows: Voltage is different from the first expected value at the first timing t1, is the same as the second expected value at the second timing t2, and is different from the third expected value at the third timing t3.

[0130] As described above, the printing device 20 first detects at the first timing t1 that there is no short circuit between the data terminal 210 and the terminals 220, 230, 240, 250 other than the data terminal 210. Then, at the second timing t2, it detects that the liquid storage container 100 is attached to the printing device 20. Furthermore, at the third timing t3, it again confirms that there is no short circuit between the data terminal 210 and the terminals 220, 230, 240, 250 other than the data terminal 210. By detecting the voltage output from the data terminal 210 at the first timing t1 to the third timing t3, it is confirmed that the liquid storage container 100 is in the attachment complete state. As will be described later, ,250It is also assumed that a short circuit between the data terminal 210 and the other terminals 220, 230, 240, 250 may occur during the first response period RT1 and the second response period RT2. By detecting that there is no short circuit between the data terminal 210 and the other terminals 220, 230, 240, 250 at the first timing t1 before the second timing t2 and at the third timing t3 after the second timing t2, it is possible to accurately confirm that the liquid storage container 100 is in an attachment complete state. In this way, the attachment detection mechanism for the liquid storage container 100 and the short circuit detection mechanism between the terminals 290 are recognized as independent configurations.

[0131] When the printing device 20 detects that the data terminal 210 and the clock terminal 220 are not shorted, 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 shorted and the voltage detected by the printing device 20 when the data terminal 210 and the clock terminal 220 are not shorted. 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 shorted, in a form in which the device 130 outputs a voltage equal to the high level to the data terminal 210 during the low level period in one cycle, the device 130 will output a voltage equal to the high level even when the data terminal 210 and the clock terminal 220 are shorted. As a result, the printing device 20 that detects the output from the data terminal 210 cannot distinguish whether the data terminal 210 and the clock terminal 220 are not shorted or whether the data terminal 210 and the clock terminal 220 are shorted. At first timing t1 to third timing t3, device 130 outputs a voltage different from the voltage of clock signal SCK to data terminal 210, so that printing device 20 can distinguish between the voltage detected by the printing device when data terminal 210 and clock terminal 220 are shorted and the voltage detected by the printing device when data terminal 210 and clock terminal 220 are not shorted. The same applies to the case where data terminal 210 and power terminal 230 are shorted and the case where data terminal 210 and reset terminal 240 are shorted.

[0132] Figures 13A to 20 B Specific examples of the connection state determination process will be described with reference to the following. In the first to ninth specific examples shown below, a single liquid storage container 100A will be described as an example. In the second to ninth specific examples, the waveforms shown in Figs. 13A to 20B typically show examples of the voltage of the terminal 290 that is actually observed. The control unit 39 recognizes the voltage output from the data terminal 210 as either a high level or a low level based on a predetermined threshold value.

[0133] (First concrete example) In the first specific example, a case where the liquid container 100A is in a mounting complete state will be described. FIG. 13A is a first timing chart of the connection state determination process. FIG. 13B is a second timing chart of the connection state determination process. As shown in FIG. 13A, the sub-controller 50 transmits a request signal RS to the device 130A of the liquid container 100A during a command period CMT. The request signal RS transmitted to the device 130A has a high level bit in cycle D8 to specify the target liquid container 100A. As shown in FIG. 13B, in the mounting complete state, the sub-controller 50 detects a low level at a first timing t1 of cycle D8 in a first response period RT1, a high level at a second timing t2 of cycle D8 in a second response period RT2, and a low level at a third timing t3 of cycle D8 in a second response period RT2 from the data terminal 210. In this case, the determination unit 421 of the main control unit 40 determines that the liquid storage container 100A is "container present" because the expected value and the detected value are the same at each of the first timing t1 to the third timing t3.

[0134] (Second concrete example) In the second specific example, a connection state determination process in the case where a short circuit occurs between the data terminal 210 and the clock terminal 220 will be described. FIG. 14A is a third timing chart of the connection state determination process. FIG. 14B is a fourth timing chart of the connection state determination process. 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 timing ta before the command period CMT. As shown in FIG. 14B, the change in the voltage output from the data terminal 210 becomes similar to the signal of the clock terminal 220. The sub-controller 50 detects a high level at a first timing t1 of the cycle D8 in the first response period RT1, a low level at a second timing t2 of the cycle D8 in the second response period RT2, and a high level at a third timing t3 of the cycle D8 in the second response period RT2 from the data terminal 210. In this case, the data terminal 210 and the clock terminal 220 are in a short state, and the determination unit 411 of the main controller determines that there is a short circuit.

[0135] (Third Specific Example) In the third specific example, a process for determining the connection state when a short circuit occurs between the data terminal 210 and the clock terminal 220 will be described. RS This example differs from the second example in that a short circuit occurs between the data terminal 210 and the clock terminal 220 after receiving the signal. FIG. 15 is a fifth timing chart of the connection state determination process. Assume that a short circuit occurs between the data terminal 210 and the clock terminal 220 of the liquid storage container 100A at timing tb of the first response period RT1. In this case, the signal output from the data terminal 210 becomes the same as the signal from the clock terminal 220. Therefore, the sub-controller 50 detects a high level from the data terminal 210 at the first timing t1 of the cycle D8 in the first response period RT1, a low level at the second timing t2 of the cycle D8 in the second response period RT2, and a high level at the third timing 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 a short-circuit state for the liquid storage container 100A, and the determination unit 411 of the main controller 40 determines that there is a short circuit.

[0136] (Fourth Specific Example) The fourth specific example describes a connection state determination process in the case where a short circuit occurs between the data terminal 210 and the power terminal 230. FIG. 16A is a sixth timing chart of the connection state determination process. FIG. 16B is a seventh timing chart of the connection state determination process. In FIG. 16A and FIG. 16B, it is assumed that a short circuit occurs between the data terminal 210 and the power terminal 230 of the liquid storage container 100A at a timing ta before the command period CMT. As shown in FIG. 16B, the change in the voltage output from the data terminal 210 becomes the same as the signal of the power terminal 230. The sub-controller 50 detects a high level from the data terminal 210 at a first timing t1 of the cycle D8 in the first response period RT1, a high level at a second timing t2 of the cycle D8 in the second response period RT2, and a high level at a third timing t3 of the cycle D8 in the second response period RT2. In this case, the data terminal 210 and the power terminal 230 of the liquid storage container 100A are in a short-circuited state, and the determining unit 411 of the main control unit 40 determines that "a short circuit exists."

[0137] (Fifth Specific Example) In the fifth specific example, a connection state determination process will be described in the case where a short circuit occurs between the data terminal 210 and the power terminal 230. The fifth specific example differs from the fourth specific example in that a short circuit occurs between the data terminal 210 and the power terminal 230 after the device 130 receives a request signal RS. FIG. 17 is an eighth timing chart of the connection state determination process. Assume that a short circuit occurs between the data terminal 210 and the power terminal 230 of the liquid storage container 100A at timing tb in the first response period RT1. In this case, the signal output from the data terminal 210 becomes the same as the signal from the power terminal 230. Therefore, the sub-controller 50 outputs a high level signal from the data terminal 210 at the first timing t1 of cycle D8 in the first response period RT1 and a low level signal from the data terminal 210 at the first timing t2 of cycle D8 in the second response period. ofA high level is detected at the second timing t2, and a high level is detected at the third timing t3 of cycle D8 in the second response period. In this case, for the liquid storage container 100A, the data terminal 210 and the power supply terminal 230 are in a short-circuited state, and the determination unit 411 of the main control unit 40 determines that "a short circuit exists."

[0138] (Sixth Specific Example) In the sixth specific example, a connection state determination process in the case where a short circuit occurs between the data terminal 210 and the reset terminal 240 will be described. FIG. 18A is a ninth timing chart of the connection state determination process. FIG. 18B is a tenth timing chart of the connection state determination process. 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 a timing ta before the command period CMT. As shown in FIG. 18B, the change in the voltage output from the data terminal 210 becomes the same as the signal of the reset terminal 240. Therefore, the sub-controller 50 detects a high level from the data terminal 210 at a first timing t1 of the cycle D8 in the first response period, a high level at a second timing t2 of the cycle D8 in the second response period, and a high level at a third timing t3 of the cycle D8 in the second response period. In this case, the data terminal 210 and the reset terminal 240 are in a short-circuit state for the liquid storage container 100A, and the determination unit 411 of the main controller 40 determines that there is a short circuit.

[0139] (Seventh Specific Example) In the seventh specific example, a connection state determination process in the case where a short circuit occurs between the data terminal 210 and the reset terminal 240 will be described. The seventh specific example differs from the sixth specific example in that a short circuit occurs between the data terminal 210 and the reset terminal 240 after the device 130 receives the request signal RS. FIG. 19 is an eleventh timing chart of the connection state determination process. Assume that a short circuit occurs between the data terminal 210 and the reset terminal 240 of the liquid storage container 100A at a timing tb of the first response period RT1. In this case, the signal output from the data terminal 210 becomes the same as the signal of the reset terminal 240. Therefore, the sub-control unit 50 detects a high level from the data terminal 210 at the first timing t1 of the cycle D8 in the first response period, a high level at the second timing t2 of the cycle D8 in the second response period, and a high level at the third timing t3 of the cycle D8 in the second response period. In this case, the data terminal 210 and the reset terminal 240 of the liquid storage container 100A are in a short-circuited state, and the determining section 411 of the main control section 40 determines that "a short circuit exists."

[0140] (Eighth Specific Example) In the eighth specific example, a case where the liquid storage container 100A is in a non-attachment complete state will be described. More specifically, in the eighth specific example, a case where the liquid storage container 100A is removed from the storage unit 4 before the device 130A receives the request signal RS will be described. FIG. 20A is a twelfth timing chart of the connection state determination process. When the liquid storage container 100A is not attached to the storage unit 4, the drive state of the host terminal HSDA1 of the sub-controller 50 becomes a low level due to the connected pull-down resistor. Therefore, the sub-controller 50 keeps the drive state at a low level at a first timing t1 of cycle D8 in the first response period RT1, a low level at a second timing t2 of cycle D8 in the second response period RT2, and a low level at a second timing t3 of cycle D8 in the second response period RT3. D8 At the third timing t3, a low level is detected. In this case, the liquid storage container 100A is in the non-attachment complete state, and the determining unit 421 of the main control unit 40 determines that a "container is absent."

[0141] (Ninth Specific Example) In the ninth specific example, a case will be described where the liquid storage container 100A is removed from the storage unit 4 in the middle of the first response period RT1. FIG. 20B is a timing chart of a thirteenth process of determining the connection state. The sub-controller 50 detects a low level at a first timing t1 of cycle D8 in the first response period RT1, a low level at a second timing t2 of cycle D8 in the second response period RT2, and a low level at a third timing t3 of cycle D8 in the second response period RT2. In this case, the liquid storage container 100A is in the non-attachment complete state, and the determiner 421 of the main controller 40 determines that "container not present."

[0142] (Other concrete examples) In other specific examples, various connection states and the determination results by the determination unit 421 for each connection state will be described. Fig. 20C is a diagram for explaining another specific example of the connection state determination process. In the connection state determination process, when at least one of the detection values ​​at the first timing t1 and the third timing t3 differs from the expected value, the determination unit 411 of the main control unit 40 determines that "a short circuit exists."

[0143] Case No.1 is when the data terminal 210 and the clock terminal 220 are short-circuited at a timing t prior to the first timing t1. In this case, the board 120 outputs a high-level voltage different from the first expected value from the data terminal 210 to the printing device 20 at the first timing t1, outputs a low-level voltage different from the second expected value at the second timing t2, and outputs a high-level voltage different from the third expected value at the third timing t3. In this case, the determination unit 411 determines that "a short circuit exists."

[0144] Case No. 2 is a case where the data terminal 210 and the clock terminal 220 are shorted during the timing t from after the first timing t1 to before the second timing t2. In this case, the board 120 outputs from the data terminal 210 to the printing device 20 a low-level voltage that is the same as the first expected value at the first timing t1, a low-level voltage that is different from the second expected value at the second timing t2, and a high-level voltage that is different from the third expected value at the third timing t3. In this case, the determination unit 411 determines that "a short circuit exists."

[0145] Case No. 3 is a case where the data terminal 210 and the clock terminal 220 are shorted during the timing t from after the second timing t2 to before the third timing t3. In this case, the board 120 outputs to the printer 20 from the data terminal 210 a low-level voltage that is the same as the first expected value at the first timing t1, a high-level voltage that is the same as the second expected value at the second timing t2, and a high-level voltage different from the third expected value at the third timing t3. In this case, the determination unit 411 determines that "a short circuit exists."

[0146] Case No. 4 is a case where the short circuit between the data terminal 210 and the clock terminal 220 is eliminated during the timing t from after the first timing t1 to before the second timing t2. In this case, the board 120 outputs a high-level voltage different from the first expected value from the data terminal 210 to the printing device 20 at the first timing t1, outputs a high-level voltage the same as the second expected value at the second timing t2, and outputs a low-level voltage the same as the third expected value at the third timing t3. In this case, the determination unit 411 determines that "a short circuit exists."

[0147] Case No. 5 is a case where the short circuit between the data terminal 210 and the clock terminal 220 is eliminated during the timing t from after the second timing t2 to before the third timing t3. In this case, the board 120 outputs from the data terminal 210 to the printer 20 a high-level voltage different from the first expected value at the first timing t1, a low-level voltage different from the second expected value at the second timing t2, and a low-level voltage equal to the third expected value at the third timing t3. In this case, the determination unit 411 determines that "a short circuit exists."

[0148] Case No. 6 is a case where at least one of the following occurs: the data terminal 210 and the power terminal 230 are shorted, or the data terminal 210 and the reset terminal 240 are shorted at a timing t prior to the first timing t1. In this case, the board 120 outputs, from the data terminal 210 to the printing device 20, a high-level voltage different from the first expected value at the first timing t1, a high-level voltage equal to the second expected value at the second timing t2, and a high-level voltage different from the third expected value at the third timing t3. In this case, the determination unit 411 determines that "a short circuit exists."

[0149] In the case of No. 7, at least one of the following occurs: the data terminal 210 and the power terminal 230 are shorted, or the data terminal 210 and the reset terminal 240 are shorted, at a timing t that is after the first timing t1 and before the second timing t2. In this case, the board 120 outputs, from the data terminal 210 to the printing device 20, a low-level voltage that is the same as the first expected value at the first timing t1, a high-level voltage that is the same as the second expected value at the second timing t2, and a high-level voltage that is different from the third expected value at the third timing t3. In this case, the determination unit 411 determines that "a short circuit exists."

[0150] In the case of No. 8, at least one of the following occurs: the data terminal 210 and the power terminal 230 are shorted, or the data terminal 210 and the reset terminal 240 are shorted, at a timing t that is after the second timing t2 and before the third timing t3. In this case, the board 120 outputs, from the data terminal 210 to the printing device 20, a low-level voltage that is the same as the first expected value at the first timing t1, a high-level voltage that is the same as the second expected value at the second timing t2, and a high-level voltage that is different from the third expected value at the third timing t3. In this case, the determination unit 411 determines that "a short circuit exists."

[0151] In the case of No. 9, at a timing t after the first timing t1 and before the second timing t2, the short circuit between the data terminal 210 and the power terminal 230 is eliminated, and the short circuit between the data terminal 210 and the reset terminal 240 is also eliminated. In this case, the board 120 outputs a high-level voltage different from the first expected value from the data terminal 210 to the printing device 20 at the first timing t1, outputs a high-level voltage equal to the second expected value at the second timing t2, and outputs a low-level voltage equal to the third expected value at the third timing t3. In this case, the determination unit 411 determines that "a short circuit exists."

[0152] In the case of No. 10, at a timing t after the second timing t2 and before the third timing t3, the short circuit between the data terminal 210 and the power terminal 230 is eliminated, and the short circuit between the data terminal 210 and the reset terminal 240 is also eliminated. In this case, the board 120 outputs a high-level voltage different from the first expected value from the data terminal 210 to the printing device 20 at the first timing t1, outputs a high-level voltage equal to the second expected value at the second timing t2, and outputs a low-level voltage equal to the third expected value at the third timing t3. In this case, the determination unit 411 determines that "a short circuit exists."

[0153] A3-4.Other software configuration: In the first embodiment, when the printing device 20 receives a second print instruction while printing based on a first print instruction is being performed, the device 130 may output the first response signal FS and the second response signal SS to the data terminal 210 after the printing based on the first print instruction is completed and before printing based on the second print instruction is started, in a case where the printing device 20 receives a cleaning instruction for the print head 5 in a case where the printing device receives a request signal RS, the device 130 may output the first response signal FS and the second response signal SS to the data terminal 210 before performing cleaning. When the request signal RS is received, the device 130 may output the first response signal FS and the second response signal SS to the data terminal 210 at an exchange position where the carriage 30 can exchange the liquid container 100, and may further output the first response signal FS and the second response signal SS to the data terminal 210 when the carriage 30 moves from the exchange position to a standby position where the liquid container 100 cannot be exchanged. The exchange position is, for example, the position of the carriage 30 at the home position.

[0154] The first response signal FS may also be referred to as a first signal. The second response signal SS may also be referred to as a second signal. The low first response voltage may also be referred to as a first low voltage. The high first response voltage may also be referred to as a first high voltage. The low second response voltage may also be referred to as a second low voltage. The high second response voltage may also be referred to as a second high voltage. The low clock voltage may also be referred to as a low voltage. The high clock voltage may also be referred to as a high voltage. The low reset voltage may also be referred to as a low voltage. The high reset voltage may also be referred to as a high voltage.

[0155] A4. Other embodiments of the first embodiment: A4-1. Other embodiment 1 related to the substrate: Fig. 21A is a diagram for explaining a substrate as another embodiment 1. Fig. 21A shows an example of a combination of the arrangement of a plurality of contact parts cp. The arrangement of the data contact part cpd, the clock contact part cpc, the power contact part cpvd, the reset contact part cpr, and the ground contact part cpvs is not limited to that of the first embodiment.21A As shown in combinations No. 1 to No. 24, other arrangements are also possible. In combinations No. 1 to No. 24, the clock contact portion cpc, the data contact portion cpd, the power 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.

[0156] In the above combinations of the arrangement of the contacts cp, in No. 1 to No. 18, at least one of the contacts cp among the clock contact cpc, the power contact cpvd, and the reset contact cpr is projected between the projection position swd of the data contact cpd and the projection position swvs of the ground contact cpvs. In the above combinations of the arrangement of the contacts cp, in No. 1 to No. 12, any two or more of the contacts cp among the clock contact cpc, the power contact cpvd, and the reset contact cpr are projected between the projection position swd of the data contact cpd and the projection position swvs of the ground contact cpvs. In the above combinations of the arrangement of the contacts cp, in No. 1 to No. 6 and No. 13 to No. 18, the data contact cpd is projected between the projection positions of any two of the contacts cp among the power contact cpvd, the reset contact cpr, and the clock contact cpc. In the above combinations of the arrangement of the contact parts cp, in Nos. 1, 3, 8, 11, 14, 15, 20, and 23, either or both of the data contact part cpd and the reset contact part cpr are arranged to be projected between the power contact part cpvd and the clock contact part cpc, and the reset contact part cpr is arranged so that its projection position swr is adjacent to the projection position swvd of the power contact part cpvd. In the above combinations of the arrangement of the contact parts cp, in Nos. 1, 2, 6 to 8, 13, 14, 16, 23, and 24, the power contact part cpvd is arranged so that its projection position swvd is adjacent to the projection position swd of the data contact part cpd. In the above combination of the arrangement of the contact parts cp, in No. 1, the clock contact part cpcare arranged so as to be projected at the position farthest from the projection position swvs of the ground contact portion cpvs, and the data contact portion cpd, the power contact portion cpvd, and the reset contact portion cpr are arranged so as to be projected in sequence in a direction from the projection position swc of the clock contact portion cpc on the second virtual line C2 toward the projection position swvs of the ground contact portion cpvs.

[0157] FIG. 21B shows the arrangement examples shown in No. 2 and No. 3 of FIG. 21A. 21A The difference from the substrate 120 shown in FIG. 5 is that the positional relationship between the clock contact portion cpc and the reset contact portion cpr is swapped. 21A 5 in that the positional relationship between the power contact portion cpvd and the reset contact portion cpr is swapped.

[0158] 21A can be similarly applied to the combination of the arrangements of the data terminal 210, the clock terminal 220, the power terminal 230, the reset terminal 240, and the ground terminal 250. The combination of the arrangements of the contact parts cp shown in FIG. 21A can also be applied to the combination of the arrangements of the device-side terminals 490.

[0159] In the first embodiment and in FIGS. 21A and 21B, the ground contact portion cpvs is disposed in the second region Rg2, but a contact portion other than the ground contact portion cpvs may be disposed in the second region Rg2. For example, cpd The power contact cpvd, the reset contact cpr, and the ground contact cpvs may be arranged in a first region Rg1, and the clock contact cpc may be arranged in a second region Rg2. cpd , the clock contact cpc, the power contact cpvd, and the ground contact cpvs may be arranged in a first region Rg1, and the reset contact cpr may be arranged in a second region Rg2. cpdAlternatively, 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 contact portion cpvd may be arranged in the second region Rg2. For example, the clock contact portion cpc, the power 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. In these embodiments, the arrangement relationship between the contact portion cp arranged in the first region Rg1 and the contact portion cp arranged in the second region Rg2 is the same as in the first embodiment.

[0160] A4-2. Other embodiment 2 related to the substrate: FIG. 22 is a diagram showing two patterns of the board 120d and the board 120e as another embodiment 2. The arrangement of the ground contact portion 250 is not limited to the first embodiment, and may be other arrangements. The board 120d has a different arrangement of the ground contact portions cpvs from the board 120 shown in FIG. 5. The ground contact portions cpvs of the board 120d are arranged to form a second row R2. When the board 120d is used, the connection mechanism 400 shown in FIGS. 7A and 7B includes device side terminals corresponding to the ground contact portions cpvs of the board 120. The number of the ground contact portions cpvs is not limited to the first embodiment, and may be two or more. The board 120e has a different number of the ground contact portions cpvs from the board 120 shown in FIG. 5. The board 120e includes two ground terminals 250a and 250b, each including a ground contact portion cpvs. When the substrate 120e is used, the connection mechanism 400 shown in Figures 7A and 7B includes two device-side terminals corresponding to the two ground terminals 250a and 250b. cpvd , and the arrangement of the reset contact portion cpr is the same as that of the substrate 120 shown in Fig. 5. 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 portions cpvs of one ground terminal 250a are arranged to form a second row R2. The ground contact portions cpvs of the other ground terminal 250b are arranged to form a first row R1.

[0161] A4-3. Other embodiment 3 related to the substrate: FIG. 23 is a diagram showing two patterns of the substrate 120f and the substrate 120g as another embodiment 3. The size of the ground terminal 250 is not limited to that of the first embodiment, and may be another size. The ground terminal 250c of the substrate 120f and the ground terminal 250d of the substrate 120g are larger than the ground terminal 250 shown in FIG. 5. The ground terminal 250c is formed across the first row R1 and the second row R2. The ground terminal 250c is arranged across the center part CMP of the substrate 120f in the direction along the first virtual line C1. The ground terminal 250d of the substrate 120g is further formed across the first region Rg1 and the second region Rg2. The ground terminal 250d is arranged across the first virtual line C1.

[0162] A4-4. Other embodiment 4 related to the substrate: FIG. 24 is a diagram showing two patterns of boards 120ab and 120ac as another embodiment 4. FIG. 25 is a diagram showing two patterns of boards 120ad and 120ae as another embodiment 4. The shape of the terminals 210-250 is not limited to that of the first embodiment, and may be another shape. As shown in FIG. 24, the terminals 210-250 of the board 120ab are formed so as to straddle the first row R1 and the second row R2, and have an elongated shape along the first virtual line C1. The terminals 210-250 of the board 120ac have a rectangular portion like the terminals 210-250 of the board 120, and also have an elongated portion along the first virtual line C1. The data terminals 210 of the board 120ad have a portion bent in the direction along the first virtual line C1 and the second virtual line C2. The data terminal 210 of the substrate 120ae has a portion bent in the direction along the first virtual line C1 and the second virtual line C2 so as to surround a part of the power terminal 230. Even in this case, the positional relationship of each of the contact portions cp of the terminals 210 to 250 is the same as the positional relationship of each of the contact portions cp shown in FIG. 5 of the first embodiment.

[0163] A4-5. Other embodiment 5 related to the substrate: FIG. 26 is a diagram for explaining a substrate 120Td as another embodiment 5. The upper diagram in FIG. 26 shows the substrate 120Td. The lower diagram in FIG. 26 shows a schematic diagram of a connection mechanism 400Td corresponding to the substrate 120Td. In the substrate 120 in the above-mentioned first embodiment, the multiple contact portions cp are arranged to form two rows, but this is not limited thereto. In the substrate 120Td, the contact portions are arranged to form three rows. The data contact portion cpd and the ground contact portion cpvs are arranged in a third row. Column In this way, even if the arrangement of the contact portion cp in the direction along the first virtual line C1 differs from that of the contact portion cp in the first embodiment, the projection position onto the second virtual line C2 does not change. When the substrate 120Td is mounted in a direction along the gravity direction, the clock contact portion cpc, the power 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. Furthermore, at least one of the contact portions cpc, cpvd, and cpr among the clock contact portion cpc, the power contact portion cpvd, and the reset contact portion cpr is arranged so as 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 portion cp is projected onto the second virtual line C2. Data contact portion cpd The contact portions cp other than the ground contact portion cpvs are also data contact portions in this embodiment. cpdSimilarly to the contacts cpvs and ground contacts cpvs, the contacts cp of the device side terminals 490 may be arranged at positions different from the contacts cp in the first embodiment in the direction along the first virtual line C1. The positional relationship of each contact cp described above is similar to that of each contact cp of the device side terminals 490. When the substrate 120Td is mounted in a direction along the gravity direction, the device side clock contact dcpc, the device side power contact dcpvd, and the device side reset contact dcpr are arranged on the +Z direction side, which is the gravity direction side, of the device side data contact dcpd. In addition, at least one of the contacts dcpc, dcpvd, and dcpr among the device side clock contact dcpc, the device side power contact dcpvd, and the device side reset contact dcpr is arranged so as to be projected between the projection position swd of the device side data contact dcpd and the projection position swvs of the device side ground contact dcpvs when the contact dcp is projected onto the second virtual line C2.

[0164] A4-6. Other embodiment 6 related to the substrate: FIG. 27 is a diagram showing two patterns of substrates 120U and 120V as another embodiment 6 relating to the substrate. The form of the base material 120bd of the substrate 120 is not limited to the first embodiment. The substrate 120U is used in common for the four liquid storage containers 100A to 100D. In this case, the four liquid storage containers 100A to 100D may be formed integrally. The substrate 120U includes a first substrate region 120UA, a second substrate region 120UB, a third substrate region 120UC, and a fourth substrate region 120UD. The first substrate region 120UA is a region in which the terminals 290 used for the liquid storage container 100A are arranged. The second substrate region 120UB is a region in which the terminals 290 used for the liquid storage container 100B are arranged. The third substrate region 120UC is a region in which the terminals 290 used for the liquid storage container 100C are arranged. The fourth substrate region 120UD is a region in which terminals 290 used for the liquid storage container 100D are arranged. The first substrate region 120UA to the fourth substrate region 120UD may each be regarded as an independent substrate. The back surface 120fb of the substrate 120U is provided with four devices 130A to 130D used for the four liquid storage containers 100A to 100D. The terminals 290 of each substrate region 120UA to 120UD are connected to the corresponding devices 130A to 130D via a wiring pattern layer (not shown) or a through hole arranged on the substrate 120U. Here, a power supply voltage VDD is supplied to each device 130A to 130D via a common power supply terminal 230. In this embodiment, the common power supply terminal 230 is provided on the terminal 290 of the first substrate region 120UA. Therefore, in the substrate 120U, the power supply terminal 230 is connected to the second substrate region 120UB to 4th board area The terminals 290 of the 120UD are not provided with such a structure. As described above, some of the terminals 290 may be used in common for the multiple devices 130A to 130D.

[0165] In the first embodiment, the base material 120bd of the substrate 120 is composed of a single member, but may be composed of a plurality of base materials. In the substrate 120V, the device 130 and the terminal 290 are arranged on separate substrates 124a and 124b, not on a single substrate. The substrate 120V has a first substrate 124a and a second substrate 124b. The first substrate 124a and the second substrate 124b are electrically connected by a conductive line EL or the like. The first substrate 124a and the second substrate 124b are made of different materials. The first substrate 124a is, for example, a rigid substrate, and the second substrate 124b is a sheet-like substrate. The device 130 is molded on the front surface 120faa of the first substrate 124a with the resin 139. The terminal 290 is arranged on the front surface 120fab of the second substrate 124b.

[0166] A4-7. Other embodiment 7 related to the substrate: FIG. 28 is a diagram showing a substrate 120X of another embodiment 7 relating to the substrate. In the above-mentioned first embodiment, as shown in FIG. 5, the types of the terminals 290 are five types, namely, the data terminal 210, the clock terminal 220, the power terminal 230, the reset terminal 240, and the ground terminal 250, but the types are not limited to this and may be less than five types. For example, the substrate 120X has the data terminal 210, the clock terminal 220, the power terminal 230, and the ground terminal 250. The substrate 120X does not have the reset terminal 240. In this case, the reset signal RST is generated, for example, in the processing unit 136 of the device 130 by using the clock signal SCK. For example, the substrate 120X may not have the power terminal 230. In this case, the power supply voltage VDD is generated, for example, in the processing unit 136 of the device 130 by using the clock signal SCK. For example, the substrate 120X may have the power terminal 230 and not have the reset terminal 240. In this way, the terminal 290 in the first embodiment does not have to include at least one of the reset terminal 240 and the power terminal 230. In this embodiment, the terminals 290 of the substrate 120 other than the ground terminal 250 are referred to as "other terminal group." In this embodiment, the ground terminal 250 can also be referred to as a first terminal. The data terminal 210 can also be referred to as a second terminal. The clock terminal 220 can also be referred to as a third terminal. Ground contact portion cpvs can also be called the first contact. cpd can also be called the second contact. cpc can also be called the third contact.

[0167] A4-8. Other embodiment 8 related to the substrate: In the embodiment of the present disclosure, the arrangement of the terminals 290 and the contact portions cp may be interchanged on either side of the first virtual line C1. The terminals constituting the first row and the terminals constituting the second row may be interchanged.

[0168] A4-9. Another embodiment of the liquid storage container: The liquid storage container of the present disclosure is not limited to the liquid storage container 100 shown in Fig. 3, and may have other configurations. Other embodiments of the liquid storage container 100 will be described below. The same reference numerals are used to designate similar configurations between the liquid storage container 100 of the first embodiment shown in Figs. 3 and 4, and other embodiments of the liquid storage container, and descriptions thereof will be omitted as appropriate. Note that the configuration of the printing device 20, such as the storage unit 4 shown in Fig. 4, is changed to correspond to the configuration of the liquid storage container.

[0169] FIG. 29 is a perspective view showing a liquid storage container 100p as another embodiment 1 of the liquid storage container. The liquid storage container 100p includes a liquid storage body 101, a liquid supply part 104 having a liquid supply port 104op, and a substrate 120. The liquid storage body 101 forms an ink chamber 150 for storing ink therein. The liquid supply part 104 is formed in the bottom wall 101wb and communicates with the ink chamber 150. The substrate 120 is provided in a corner part 89 where the third wall 101wb and the second wall 101wr of the liquid storage body 101 intersect. The liquid storage container 100p is rotated around the second container engagement part 320 as a fulcrum after the protruding second container engagement part 320 of the first wall 101wf is engaged with a recess of the storage part 4. 100p The container is attached to the storage unit 4 by rotating the second wall 101wr in a rotational attachment direction RD. When the attachment is complete, the first container engagement portion 310 of the second wall 101wr engages with the lever of the storage unit 4. In this embodiment, the attachment direction MD includes components in the +Z direction and the -Y direction, and is aligned in the first direction F. D is Z direction and Y Direction Both positive and negative Contains ingredients.

[0170] A4-10. Another embodiment of the liquid storage container 2: FIG. 30 is a perspective view showing a liquid container 100q as another embodiment 2 of the liquid container. FIG. 31 is an enlarged view of the periphery of a substrate 120 of the liquid container 100q. As shown in FIG. 30, the liquid container 100q includes a liquid container 101, a liquid supply unit 104 having a liquid supply port 104op, and a substrate 120. A liquid container bag (not shown) that contains ink is disposed inside the liquid container 101. The liquid container bag is flexible and functions as an ink chamber 150. The liquid supply unit 104 is disposed in the liquid container bag and in an opening 424 formed in a front wall 101wf of the liquid container 101. The substrate 120 is disposed in a corner portion 89a where the second wall 101wr and the fourth wall 101wu of the liquid container 101 intersect. The corner portion 89a is a recess recessed inwardly of the liquid container 101. In this embodiment, the mounting direction MD is the -Y direction, and the first direction FD is the -Y direction. is Y direction and Z direction Both positive and negative and the components:

[0171] A4-11. Another embodiment of the liquid storage container 3: FIG. 32 is a perspective view showing a liquid storage container 100r as another embodiment 3 of the liquid storage container. The liquid storage container 100r has a mounting direction MD in the -Y direction. The liquid storage container 100r includes a liquid storage body 101, a liquid supply unit 104 having a liquid supply port 104op, and a substrate 120. A liquid storage bag (not shown) that stores ink is disposed inside the liquid storage body 101. This liquid storage bag has flexibility and functions as an ink chamber 150. The liquid supply unit 104 is provided in the liquid storage bag and disposed in an opening 424 formed in the second wall 101wr of the liquid storage body 101. The substrate 120 is provided in a corner portion 89a where the second wall 101wr and the fourth wall 101wu of the liquid storage body 101 intersect. The corner portion 89a is a recess recessed inwardly of the liquid storage body 101. A groove-shaped container-side engagement structure 425 is formed on the third wall 101wb of the liquid container 101. When the liquid container 100r is in a fully attached state, the container-side engagement structure 425 engages with a protruding device-side engagement structure of the storage unit 4, thereby restricting movement in the +Y direction, which is the removal direction, of the liquid container 100. In this embodiment, the attachment direction MD is the -Y direction, and the first direction FD is Y direction and Z direction Both positive and negative Contains the ingredients.

[0172] A4-12. Another embodiment 4 of the liquid storage container: FIG. 33 is a perspective view showing a liquid storage container 100s as another embodiment 4 of the liquid storage container. The liquid storage container 100s is detachably stored in a case 61 provided in the printing device 20 so as to be removable, and then is attached to the printing device 20 together with the case 61. The liquid storage container 100s has a liquid storage bag 111 and a connection member 112 attached to one end of the liquid storage bag 111 on the -Y direction side. In this embodiment, the liquid storage bag 111 and the connection member 112 function as a liquid storage body. The liquid storage bag 111 has flexibility. A liquid supply unit 104 having a liquid supply port 104op is provided on the -Y direction side of the liquid storage bag 111 functioning as the ink chamber 150. The liquid supply unit 104 is disposed in an opening 424 formed in the second wall 101wr of the connection member 112. The substrate 120 is disposed in a corner portion 89a, which is a recess formed in the second wall 101wr of the connection member 112. In this embodiment, the mounting direction MD is the -Y direction, and the first direction FD is Y direction and Z direction Both positive and negative Contains the ingredients.

[0173] A4-13. Another embodiment 5 of the liquid storage container: FIG. 34 is a perspective view showing a liquid storage container 100w as another embodiment 5 of the liquid storage container. In the liquid storage container 100w, the substrate 120 is disposed on a fourth wall 101wu that is a horizontal surface in the mounting complete state. The fourth wall 101wu constitutes an upper wall in the mounting complete state. The liquid storage container 100w includes a liquid storage body 101 and a liquid supply unit 104 having a liquid supply port 104op, similar to the liquid storage container 100 shown in FIG. 3 and FIG. 4. A flexible liquid storage bag (not shown) that stores ink is disposed inside the liquid storage body 101. This liquid storage bag functions as an ink chamber 150. The liquid supply unit 104 is provided in the liquid storage bag and disposed in an opening 424 formed in the second wall 101wr of the liquid storage body 101. In this embodiment, the mounting direction MD is the -Y direction, and the first direction FD is the -Y direction. is Y Direction Both positive and negative be.

[0174] A4-14. Another embodiment 6 of the liquid storage container: FIG. 35 is a perspective view showing a liquid storage container 100x as another embodiment 6 of the liquid storage container. In the liquid storage container 100x, the substrate 120 is disposed on the fifth wall 101wsa, which is a vertical surface in the mounting complete state. The fifth wall 101wsa constitutes a side wall in the mounting complete state. The liquid storage container 100x includes a liquid storage body 101 and a liquid supply unit 104 having a liquid supply port 104op, similar to the liquid storage container 100 shown in FIG. 3 and FIG. 4. A flexible liquid storage bag (not shown) that stores ink is disposed inside the liquid storage body 101. This liquid storage bag functions as an ink chamber 150. The liquid supply unit 104 is provided in the liquid storage bag and disposed in an opening 424 formed in the second wall 101wr of the liquid storage body 101. In this embodiment, the mounting direction MD is the -Y direction, and the first direction FD is the -Y direction. is Y direction Both positive and negative be.

[0175] A4-15. Another embodiment 7 of the liquid storage container: FIG. 36 is a diagram showing a liquid storage container 100y as another embodiment 7 of the liquid storage container. As shown in FIG. 3 and FIG. 4, the liquid storage container 100 of the first embodiment is configured such that the liquid storage body 101 and the substrate 120 are integrally formed, but this is not limited thereto. For example, the liquid storage container 100y has a liquid storage body 101ya forming an ink chamber 150 and an adapter 101yb to which the substrate 120 is attached. The liquid supply part 104 is formed in the liquid storage body 101ya. The liquid storage body 101ya is removably accommodated in the concave-shaped adapter 101yb. The adapter 101yb functions as a case for accommodating the liquid storage body 101ya. An opening 134 through which the liquid supply part 104 is inserted is formed in the third wall 101wb of the adapter 101yb. The liquid storage body 101ya may be fixed to the adapter 101yb using a fixing member not shown. The liquid container 101ya does not have to be fixed to the adapter 101yb.

[0176] A4-16. Another embodiment of the liquid storage container 8: FIG. 37 is a diagram showing liquid storage containers 100g and 100h as another embodiment 8 of the liquid storage container. In the liquid storage container 100 of the first embodiment, as shown in FIGS. 4 to 6, the multiple terminals 290 and the device 130 are disposed on the base material 120bd, but this is not limited thereto. In the liquid storage container 100g, the multiple terminals 290 and the device 130 are disposed directly on the second wall 101wr of the liquid storage body 101 without the base material 120bd. The multiple terminals 290 and the device 130 are electrically connected by a wiring pattern (not shown) or the like. In this way, the liquid storage body 101, the multiple terminals 290, and the device 130 may be integrally configured as the liquid storage container 100g.

[0177] In the liquid storage container 100h, the multiple terminals 290 are disposed directly on the second wall 101wr of the liquid storage body 101 without the substrate 120bd. The device 130 is disposed on the mounting substrate 120h, and is disposed on the second wall 101wr of the liquid storage body 101 via the mounting substrate 120h. The multiple terminals 290 and the device 130 are electrically connected by a wiring pattern (not shown) or the like. In this way, the liquid storage body 101 and the multiple terminals 290 may be integrally configured as the liquid storage container 100h, and the device 130 may be configured separately.

[0178] A4-17. Another embodiment of the liquid storage container 9: FIG. 38 is a perspective view showing a liquid storage container 100z as another embodiment 9 of the liquid storage container. FIG. 39 is an enlarged view of the periphery of the substrate 120 of the liquid storage container 100z. The XYZ axes shown in each figure of the other embodiment 9 are based on the state when the liquid storage container 100z is completely inserted into a storage unit of the printing device, which will be described later. When the liquid storage container 100z is mounted on the printing device, two mounting operations are performed. In this 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. 38, the liquid storage container 100z includes a liquid storage body 101z, a liquid supply unit 104 having a liquid supply port 104op, and a substrate 120. The liquid storage body 101z includes a storage main body 101za capable of storing liquid, and a cover member 101zb attached to the storage main body 101za. The liquid supply part 104 is disposed in an opening 424 formed in a third wall 101wb of the liquid container 101z formed by the cover member 101zb. The substrate 120 is provided in a corner part 89z where the second wall 101wr and the third wall 101wb of the liquid container 101z intersect. The corner part 89z is a recess recessed inwardly of the liquid container 101z.

[0179] 39, the substrate 120 is oriented differently from that in FIG. 5, with the data terminal 210 and the reset terminal 240 being located on the −Z direction side of the clock terminal 220, the power terminal 230, and the ground terminal 250. As shown in FIG.

[0180] FIG. 40 is a first diagram illustrating the process of mounting the liquid storage container 100z in the storage unit 4z of the printing device. FIG. 41 is a second diagram illustrating the process of mounting the liquid storage container 100z in the storage unit 4z of the printing device. FIG. 42 is a diagram illustrating the completed mounting state of the liquid storage container 100z. The storage unit 4z is located in a different location from the print head, not shown. The storage unit 4z and the print head are connected by a liquid circulation pipe, not shown. The liquid storage container mounted in the storage unit 4z 100z The liquid is delivered to the print head through a liquid delivery tube.

[0181] 40, the liquid container 100z is inserted into the mounting chamber 65 of the storage unit 4z through the mounting opening 474 of the storage unit 4z by moving the liquid container 100z in a first mounting direction MD1, which is a horizontal direction. - This is the Y direction.

[0182] As shown in Fig. 41, the liquid storage container 100z is pushed forward in a first mounting direction MD1, completing contact between the device-side terminal 490 of the connection mechanism 400 of the storage section 4z and the terminal 290 of the substrate 120. By pushing down the second wall 101wr side of the liquid storage container 100z shown in Fig. 41, the liquid storage container 100z rotates around a rotation fulcrum Rp provided on the storage section 4z in a second mounting direction MD2 having a gravity direction component. The second mounting direction MD2 is a direction that is parallel to the +Z direction and the + Y-way It has a directional component.

[0183] 42, when the rotational movement of the liquid storage container 100z in the second mounting direction MD2 is completed, the liquid supply portion 104 of the liquid storage container 100z and the liquid introduction portion 6 of the storage portion 4z are connected. In this embodiment, either the first mounting direction MD1 or the second mounting direction MD2 is the mounting direction MD.

[0184] A4-18. Another embodiment of the liquid storage container 10: In the first embodiment and other embodiments described above, the liquid storage container 100 is an ink cartridge, but is not limited to this. The liquid storage container 100 may be, for example, a waste liquid storage container. The waste liquid storage container is a container that stores waste liquid discharged from the nozzles of the print head 5 when the printing device 20 performs cleaning of the print head 5, for example.

[0185] A4-19. Another embodiment of the printing system 1: The printing system of the present disclosure is not limited to the printing system 1000 shown in FIG. 1. FIG. 43 is a diagram showing a printing system 1000A as another embodiment 1 of the printing system. In the above-mentioned first embodiment, as shown in FIG. 1, the liquid storage container 100 is configured as an on-carriage in which the liquid storage container 100 is mounted on the carriage 30, but the present invention is not limited to this. The liquid storage container 100 may be configured as an off-carriage in which the liquid storage container 100 is mounted at a location other than the carriage 30. The printing system 1000A is an off-carriage type printing system, and includes a printing device 20A and a liquid storage container 100T. The printing device 20A has a carriage 30 equipped with a print head 5. The liquid storage container 100T is detachably mounted to a container mounting section 600 arranged at a location other than the carriage 30. The liquid storage container 100T also includes a liquid container, a liquid storage section having an ink supply port, and a substrate, similar to the liquid storage container 100 of the first embodiment. The printing device 20A is fitted with, for example, liquid containers 100q to 100x shown in Figures 30 to 35. The printing device 20A, like the printing device 20, executes a connection state determination process.

[0186] A4-20. Another embodiment of the printing system 2: FIG. 44 is a diagram showing a printing system 1000C as another embodiment 2 of the printing system. In the first embodiment, as shown in FIG. 1, the storage unit 4 to which the liquid storage container 100 is detachably attached is disposed inside the main body of the printing device 20, but the position of the storage unit 4 is not limited thereto. In the printing system 1000C shown in FIG. 45, the storage unit 4C of the printing device 20C is disposed outside the main body 201 of the printing device 20C. As shown in FIG. 7A and FIG. 7C, the storage unit 4C includes a liquid introduction unit 6, a connection mechanism 400, and a sub-control board 500. The liquid introduction unit 6 and the print head 5 disposed inside the main body 201 are communicated with each other through a flexible liquid circulation tube 105. A plurality of liquid circulation tubes 105 are provided according to the number of liquid introduction units 6. The plurality of liquid circulation tubes 105 are housed in one protective tube 106. The printing device 20C also has a bus 107 that connects the sub-control board 500 and the main control unit 40 (not shown) located inside the main body 201, and transmits and receives various signals. 44 Similarly to the liquid storage container 100 of the first embodiment, the liquid storage container 100 shown in FIG. 2 also includes a liquid storage body, a liquid supply unit having a liquid supply port, and a substrate. Similarly to the printing device 20, the printing device 20C executes a connection state determination process.

[0187] A4-21. Other embodiment of the printing system 3: FIG. 45 is a diagram showing a printing system 1000D as a third alternative embodiment of the printing system. The printing system 1000D includes four liquid storage containers 100A, 100B, 100C, and 100D, as in the first embodiment, and the printing device 20 shown in FIG. 1. The liquid storage containers 100A to 100D may be formed integrally, or may be formed separately. The liquid storage containers 100A to 100D include a printing system 1000D Through an external liquid reservoir 814 and a liquid flow tube 812 ,liquid In Figure 45, among liquid storage section 814 and liquid circulation tube 812, the elements corresponding to each of liquid storage containers 100A to 100D are labeled with the suffixes "A" to "D."

[0188] A4-22. Other embodiment 4 of the printing system: FIG. 46 is a diagram showing a printing system 1000E as another embodiment 4 of the printing system. The printing system 1000E includes an adapter 101E having a substrate 120, a liquid container 824 capable of containing liquid, a liquid circulation tube 822, and the printing device 20 shown in FIG. 1. The adapter 101E can be detachably attached to the container 4. The liquid circulation tube 822 connects the liquid container 824 to the liquid introduction section 6, and functions as a liquid supply section. A portion of the liquid circulation tube 822 connected to the liquid introduction section 6 functions as a liquid supply port. There are four adapters 101E, four liquid circulation tubes 822, and four liquid containers 824. In the printing system 1000E, the "attachment completed state" refers to a state in which the adapter 101E having the substrate 120 is attached to the printing device. 20 The term "board 120 is mounted on the printing device 20" refers to a state in which the board 120 is mounted on the printing device 20 and no short circuit occurs between the terminals 290. In this embodiment, "board 120 is mounted on the printing device 20" refers to a state in which the board 120 is physically attached to the printing device 20 and the contact portion cp of the terminal 290 is electrically connected to the device-side terminal 490. The data terminal 210 of the board 120 is used to detect whether or not the board 120 is mounted on the printing device 20. The mounting determination unit 412 of the printing device 20 determines whether or not the board 120 is mounted. The first response signal RT1 and the second response signal RT2 are signals used by the printing device 20 to determine whether the board 120 is mounted on the printing device 20.

[0189] A4-23. Other embodiments related to electrical and software configurations: In the first embodiment, as shown in FIG. 1, four liquid storage containers 100A to 100D are detachably attached to the storage unit 4, but the number of liquid storage containers 100 detachably attached to the storage unit 4 is not limited to this. Below, a timing chart of a connection state determination process in a printing system 1000 in which six liquid storage containers 100 are detachably attached to the storage unit 4 will be described with reference to FIG. 47A and FIG. 47B. The six liquid storage containers 100 contain, for example, inks of different colors. FIG. 47A and FIG. 47B are timing charts that typically show signals input to and output from the terminal 290 of the liquid storage container 100 in a mounting complete state. FIG. 47A is a first timing chart in the printing system 1000 that includes six liquid storage containers 100A to 100F. FIG. 47B is a second timing chart in the printing system 1000 that includes six liquid storage containers 100A to 100F. FIG. 47A is a view corresponding to FIG. 11A, and FIG. 47B is a view corresponding to FIG. 11B. 47A and Figure 47B VDD, RST, SCK, and SDA1 to SDA6 shown in FIG. 1 represent signals transmitted / received via corresponding terminals 290 or voltages supplied by corresponding lines LVDD, LRST, LSCK, and LSDA1 to LSDA6.

[0190] The request signal RS shown in Fig. 47A differs from the request signal RS shown in Fig. 11A in that the bits of cycles D4 and D3 of the command period CMT shown in Fig. 47A are assigned to specify the fifth liquid storage container 100E and the sixth liquid storage container 100F. In the request signal RS transmitted via the data line LSDA5 connected to the 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. In the request signal RS transmitted via the data line LSDA6 connected to the 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.

[0191] 11B is that the waveforms of the first response signal FS and the second response signal SS corresponding to the liquid storage containers 100E, 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.

[0192] FIG. 48 is a diagram showing a schematic diagram of an electrical configuration of a printing system 1000 having six liquid containers 100A-100F. In FIG. 48, the same components as those in the electrical configuration shown in FIG. 8 are given the same reference numerals and will not be described as appropriate. The difference between the electrical configuration in FIG. 48 and the electrical configuration shown in FIG. 8 is that, in FIG. 8, the lines LSDA, LRST, LSCK, and LVDD other than the ground line LVSS are provided independently corresponding to the four liquid containers 100A-100D, whereas in FIG. 48, the lines LRST, LSCK, and LVDD other than the data line LSDA are used in common for a plurality of devices 130. Note that, in FIG. 48, the ground line LVSS is also used in common for the devices 130A-130F of the six liquid containers 100A-100F.

[0193] As shown in FIG. 48, the power supply line LVDD2 electrically connected to the host terminal HVDD2 of the sub-controller 50 is electrically connected to the two devices 130B, 130E in the mounting completion state. The reset line LRST2 electrically connected to the host terminal HRST2 of the sub-controller 50 is electrically connected to the two devices 130B, 130C in the mounting completion state. The clock line LSCK2 electrically connected to the host terminal HSCK2 of the sub-controller 50 is electrically connected to the two devices 130B, 130D in the mounting completion state. The power supply line LVDD4 electrically connected to the host terminal HVDD4 of the sub-controller 50 is electrically connected to the two devices 130C, 130D in the mounting completion state. The reset line LRST4 electrically connected to the host terminal HRST4 of the sub-controller 50 is electrically connected to the two devices 130D, 130E in the mounting completion state. In the completed mounting state, the clock line LSCK4 electrically connected to the host terminal HSCK4 of the sub-controller 50 is electrically connected to the two devices 130C and 130E. The lines LSDA1, LVDD1, LRST1, and LSCK1 electrically connected to the device 130A and the lines LSDA6, LVDD6, LRST6, and LSCK6 electrically connected to the device 130F are used independently without being used in conjunction with other devices 130.

[0194] A portion of the electrical configuration of the printing system 1000 shown in Fig. 48 may be applied to the printing system 1000 shown in Fig. 1, which includes four liquid storage containers 100A-100D. For example, the liquid storage containers 100B-100E shown in Fig. 48 may be used in place of the liquid storage containers 100A-100D of the printing system 1000 shown in Fig. 1. For example, the liquid storage containers 100A, 100B, 100E, and 100F shown in Fig. 48 may be used in place of the liquid storage containers 100A-100D of the printing system 1000 shown in Fig. 1.

[0195] A4-24. Another embodiment 1 of the device: In the above-described first embodiment, as shown in FIG. 6, the device 130 includes the processing unit 136 and the storage unit 138, but the present invention is not limited to this. FIG. 49 is a diagram showing devices 130a and 130b as another embodiment 1 related to the device 130. The device 130a includes the processing unit 136 but does not include the storage unit 138. The storage unit 138 may be separate from the device 130. In this case, the storage unit 138 is electrically connected to the processing unit 136 of the device 130b. The device 130b includes a first processing unit 136a, a second processing unit 136b, and a storage unit 138. The first processing unit 136a is connected to the storage unit 138. The second processing unit 136b is connected to the first processing unit 136a. 136a and are connected to terminals 210 to 250. In this embodiment, first processing unit 136a and second processing unit 136b function as a processing unit as a whole. In this manner, device 130b may have a plurality of processing units 136a and 136b.

[0196] A4-25. Another embodiment 2 of the device: In the first embodiment, as shown in FIG. 11C, the first response signal FS is output during the entire period when the clock signal SCK is at a high level, but this is not limited to the above. For example, the device 130 may output the first response signal FS to the data terminal 210 during a part of the period when the clock signal SCK is at a high level. For example, the device 130 may set the driving state of the data terminal 210 to high impedance after outputting the first response signal FS during the period when the clock signal SCK is at a high level. For example, the device 130 may output the first response signal FS including a low level during the period when the clock signal SCK is at a low level and during the period when the clock signal SCK is at a high level in one cycle of the clock signal SCK.

[0197] A4-26. Other embodiment 3 of the device: In the first embodiment, in the connection state determination process, the frequency of the clock signal SCK is constant as shown in Figs. 11A and 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 includes a different voltage. In the second response period RT2, the frequency of the clock signal SCK may be set lower than the first response period RT1, and the second response signal SS may be output longer than the first response signal FS.

[0198] A4-27. Other embodiment 4 related to the device: 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 by repeatedly providing the first response period RT1 and the second response period RT2 in this order while the reset signal RST is at a high level. After outputting a low-level voltage of the second response signal SS to the data terminal 210, 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 when the request signal RS is input to the data terminal 210 again.

[0199] A4-28. Another embodiment 5 of the device: 11B, in the first embodiment, the rising and falling edges of the clock signal SCK and the rising and falling edges of signals such as the first response signal FS in the first response period RT1 and the second response signal SS in the second response period RT2 are at the same timing, but this is not limited to this. For example, the rising and falling edges of signals such as the first response signal FS in the first response period RT1 and the second response signal SS in the second response period RT2 may be delayed from the rising and falling edges of the clock signal SCK.

[0200] A4-29. Other embodiment 6 of the device: In the first embodiment, the processing units 136A-136D of the devices 130A-130D output the first response signal FS and the second response signal SS to the data terminal 210 in different cycles of the clock signal SCK, but this is not limited to the above. For example, the processing units 136A-136D of the devices 130A-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 connection state determination process, the printing device 20 transmits and receives signals via the individual data lines LSDA1-LSDA4 electrically connected to the devices 130A-130D. Therefore, the first response signal FS and the second response signal SS are transmitted to the data terminal 210 from the devices 130A-130D in the same cycle of the first response period RT1 and the second response period RT2. To Even if a request signal RS is output, the sub-controller 50 of the printing device 20 can detect the voltage output from the data terminal 210 at each of the first timing t1 to the third timing t3. In this case, the request signal RS is set to a high level in the corresponding bit of the command period CMT.

[0201] 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 of the cycles D3 to D8 of the first response period RT1 and the second response period RT2. In this case, the first timing t1 may be provided in all of the cycles D3 to D8 of the first response period RT1. The second timing t2 and the third timing t3 may be provided in all of the cycles D3 to D8 of the second response period RT2.

[0202] A4-30. Device S Alternative embodiment 7: In the above first embodiment, the processing units 136A-136D of the devices 130A-130D output the first response signal FS and the second response signal SS to the data terminal 210 in cycles D8-D5 of the first response period, but this is not limited to this. For example, the processing units 136A-136D of the devices 130A-130D may output the first response signal FS and the second response signal SS to the data terminal 210 in cycles D5-D8 of the first response period. In this case, the request signal RS is set to a high level in the corresponding bit of the command period CMT.

[0203] A4-31. Other embodiment 8 of the device: In the first embodiment, the device 130 receives a request signal RS at the data terminal 210 and outputs a first response signal FS and a second response signal SS to the data terminal 210, but the terminal to which the request signal RS is received may be a terminal other than the data terminal 210. Similarly, the terminal that outputs the first response signal FS and the second response signal SS may be a terminal other than the data terminal 210. In that case, the device 130 and the terminal are connected.

[0204] B. Other forms: The present disclosure is not limited to the above embodiments, and can be realized in various configurations within the scope of the present disclosure. For example, the technical features of the embodiments corresponding to the technical features in each embodiment described below can be appropriately replaced or combined in order to solve some or all of the above problems, or to achieve some or all of the above objects. If the technical features are not described as essential in this specification, they can be appropriately deleted. Each of the following embodiments does not need to have all the configurations of the present disclosure. Each of the following embodiments only needs to have the minimum configuration to solve the above problems or achieve the above objects. The effects corresponding to one embodiment are independent of the effects corresponding to other embodiments, unless otherwise specified. In the combined embodiments, the effects corresponding to the combined embodiments are achieved.

[0205] (1) According to a first aspect of the present disclosure, there is provided a substrate configured to be mounted on a printing device having a print head, a liquid introduction section for introducing liquid into the print head, a storage section in which the liquid introduction section is provided and which stores a liquid container, and a plurality of device-side terminals provided in the storage section, and configured to come into contact with the plurality of device-side terminals. The substrate includes a base material, a device provided on the base material, and a plurality of terminals provided on the base material, the plurality of terminals including at least a first terminal, a second terminal, a third terminal, a fourth terminal, and a fifth terminal, the first terminal including a first contact portion connected to the device and to be in contact with a corresponding first device-side terminal of the plurality of device-side terminals, the second terminal including a second contact portion connected to the device and to be in contact with a corresponding second device-side terminal of the plurality of device-side terminals, the third terminal including a third contact portion connected to the device and to be in contact with a corresponding third device-side terminal of the plurality of device-side terminals, the fourth terminal including a fourth contact portion connected to the device and to be in contact with a corresponding fourth device-side terminal of the plurality of device-side terminals, and the fifth terminal including a fifth contact portion connected to the device and to be in contact with a corresponding fifth device-side terminal of the plurality of device-side terminals. the first terminal is used to detect whether the first terminal is short-circuited to at least one of the second terminal, the third terminal, and the fourth terminal; when, in a plan view, two perpendicular straight lines are defined as a first virtual line and a second virtual line, and all of the contact portions of all of the terminals provided on the substrate are projected onto the second virtual line, all of the contact portions are projected at different positions, and the first virtual line passes through the midpoint between two of the farthest projection positions of all of the contact portions, and when one region with respect to the first virtual line is defined as a first region and the other region is defined as a second region, some of the all of the contact portions are arranged in the first region and the remaining contact portions are arranged in the second region, the some of the 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, and the some of the contact portions and the remaining contact portions are arranged asymmetrically with respect to the first virtual line.

[0206] Foreign matter tends to gather at the contact portion of the terminal. For example, a foreign matter may be caught between the device side terminal and the terminal. For example, if the terminal of the board is arranged on a surface including a component in the direction of gravity, when a foreign matter intrudes toward the board from above in the direction of gravity, the foreign matter may be trapped at the contact portion of the terminal and remain there. For example, if the foreign matter is liquid, the liquid tends to gather at the contact portion of the terminal due to the effect of capillary force. Therefore, by defining the arrangement of the contact portion of the terminal, rather than the arrangement of the terminal, the possibility of short circuit occurrence can be suppressed regardless of the area or shape of the terminal. In this embodiment, the first contact portion, the second contact portion, the third contact portion, and the fourth contact portion are arranged in the first region of the board, and the fifth contact portion, which is desired to suppress short circuit with other contact portions, is arranged in the second region. By arranging the contact portions in this manner, the possibility of short circuit occurrence can be suppressed. The reason for this is that the fifth contact portion is away from the contact portions of other terminals and the distance from the other contact portions is secured, so that the possibility of short circuit occurrence between the fifth contact portion and the other contact portions can be suppressed. In addition, foreign matter tends to gather near the contact portion, but since a distance is ensured between the fifth contact portion and the other contact portions, foreign matter gathered at the fifth contact portion is less likely to reach the contact portion of the other terminals than when the fifth contact portion and the other contact portions are arranged in close proximity. In addition, foreign matter gathered at the first to fourth contact portions is less likely to reach the contact portion of the fifth terminal. This is true regardless of the area or shape of the terminal. Examples of foreign matter include conductive liquids such as ink and pet urine, and conductive solids such as wire, stapler lead, and mechanical pencil lead. Regardless of the possibility that these foreign matter will actually occur, there is a possibility that a short circuit will occur due to the foreign matter, unless the possibility is zero. In this embodiment, the possibility can be suppressed.

[0207] Among the multiple terminals, there are some contact parts that should be arranged apart from the other contact parts in order to prevent the occurrence of short circuits between the terminals. When the contact part that should be arranged apart is the fifth contact part, the first to fourth contact parts are arranged in a first region that is one region with respect to a first virtual line, and the fifth contact part is arranged in a second region that is the other region. In other words, the contact parts in the first region and the contact parts in the second region are arranged on the base material so as to be asymmetric with respect to the first virtual line.

[0208] In this embodiment, all the contact parts are arranged so as to be projected to different positions in the direction along the second virtual line. When the direction of the first virtual line includes the mounting direction, if a foreign object is present, the foreign object may be dragged by the device-side terminal during the process of mounting the liquid storage container to the printing device, and a short circuit may occur between the terminals. By arranging all the contact parts on the base material so that they are projected to different positions when all the contact parts are projected onto the second virtual line, the possibility of a short circuit occurring can be suppressed. When focusing on the first contact parts, no contact parts other than the first contact parts are located on a straight line along the first virtual line that passes through the first contact parts. On the other hand, contact parts other than the first contact parts are located in the direction along the second virtual line. This positional relationship is also true for contact parts other than the first contact parts. Therefore, the probability of a short circuit occurring in a direction including the direction along the second virtual line is higher than the probability of a short circuit occurring in a direction along the first virtual line. By specifying the arrangement of the contact parts in the direction along the second virtual line, the possibility of a short circuit occurring can be suppressed. Alternatively, by arranging all contact portions on the substrate so that they are projected at different positions on the second virtual line, it is possible to ensure spacing between the contact portions in the direction along the second virtual line on the substrate, thereby reducing the possibility of a short circuit occurring between the terminals.

[0209] (2) In the above embodiment, at least one of the second contact portion, the third contact portion, and the fourth contact portion may be arranged to be projected between the projection position of the first contact portion and the projection position of the fifth contact portion. According to this embodiment, at least one of the second contact portion, the third contact portion, and the fourth contact portion is arranged to be projected between the projection position of the first contact portion and the projection position of the fifth contact portion, so that a certain distance is generated between the first contact portion and the fifth contact portion in the direction along the second virtual line. This allows the first contact portion and the fifth contact portion to be relatively separated in the direction along the second virtual line, thereby suppressing the possibility of a short circuit occurring between the first terminal and the fifth terminal.

[0210] (3) In the above embodiment, any two or more of the second contact portion, the third contact portion, and the fourth contact portion may be arranged so as to be projected between the projection position of the first contact portion and the projection position of the fifth contact portion. According to this embodiment, by arranging two or more other contact portions between the projection positions of the first contact portion and the fifth contact portion on the second virtual line, a certain interval is generated between the first contact portion and the fifth contact portion in the direction along the second virtual line. This allows the first contact portion and the fifth contact portion to be relatively separated in the direction along the second virtual line, thereby further reducing the possibility of a short circuit occurring between the first terminal and the fifth terminal.

[0211] (4) In the above embodiment, the first contact portion may be disposed so as to be projected between the projection positions of any two of the second contact portion, the third contact portion, and the fourth contact portion. According to this embodiment, the first contact portion is disposed so as to be projected between the projection positions of any two of the second contact portion, the third contact portion, and the fourth contact portion, so that a certain interval is generated in the direction along the second virtual line between the contact portions disposed so as to be sandwiched between the first contact portion. This allows these contact portions to be relatively separated in the direction along the second virtual line, thereby further reducing the possibility of short circuiting between the terminals having these contact portions.

[0212] (5) In the above embodiment, the first contact portion may be a data contact portion, the first terminal may be a data terminal, the second contact portion may be a clock contact portion, the second terminal may be a clock terminal, the third contact portion may be a reset contact portion, the third terminal may be a reset terminal, the fourth contact portion may be a power contact portion, the fourth terminal may be a power terminal, the fifth contact portion may be a ground contact portion, and the fifth terminal may be a ground terminal. This embodiment can reduce the possibility of short-circuiting between the ground terminal and the data terminal, the clock terminal, the reset terminal, and the power terminal.

[0213] (6) In the above embodiment, either one or both of the data contact and the reset contact may be arranged so as to be projected between the projection position of the power contact and the projection position of the clock contact, and the reset contact may be arranged so that its projection position is adjacent to the projection position of the power contact. The period during which the clock signal is at a low level is longer than the period during which the reset signal is at a low level. In other words, the load on the device when the power terminal and the clock terminal are shorted is greater than the load on the board when the power terminal and the reset terminal are shorted. For this reason, it is preferable to suppress the occurrence of a short circuit between the power terminal and the clock terminal rather than the occurrence of a short circuit between the power terminal and the reset terminal. According to this embodiment, the power contact and clock A certain interval is created between the power contact portion and the contact portion in the direction along the second virtual line. clock Since the contact portions can be relatively separated in the direction along the second imaginary line, clock The possibility of short circuiting of the terminals can be further reduced, and the load on the board in the event of a short circuit can be relatively reduced.

[0214] (7) In the above embodiment, the power contact portion may be disposed so that its projection position is adjacent to the projection position of the data contact portion. According to this embodiment, the driving capability of the power terminal is higher than that of the data terminal, and if the data terminal is shorted to the power terminal, the voltage of the data terminal is likely to increase. By making the contact portion adjacent to the data contact portion in the direction along the second virtual line the power contact portion, even if the data terminal and the power terminal are shorted, the short can be detected quickly.

[0215] (8) In the above embodiment, the clock contact may be arranged so as to be projected at a position farthest from the projection position of the ground contact, and the data contact, the power contact, and the reset contact may be arranged so as to be projected in order in a direction from the projection position of the clock contact on the second virtual line toward the projection position of the ground contact. This embodiment provides the above-mentioned effect.

[0216] (9) In the above embodiment, 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 clock contact portion. With this embodiment, the possibility of a short circuit occurring between the data terminal and the ground terminal can be reduced more than the possibility of a short circuit occurring between the data terminal and the clock terminal.

[0217] (10) In the above embodiment, 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. With this embodiment, the possibility of a short circuit occurring between the data terminal and the ground terminal can be reduced more than the possibility of a short circuit occurring between the data terminal and the reset terminal.

[0218] (11) In the above embodiment, 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 power contact portion. According to this embodiment, power supply It is possible to reduce 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 terminals.

[0219] (12) In the above embodiment, when the distance in the direction along the second virtual line between the contact portion in the first region, other than the ground contact portion, which is projected at a position farthest from the projection position of the ground contact portion when projected onto the second virtual line, and the ground contact portion provided in the second region, is Wa, the distance in the direction along the second virtual line between the contact portion in the first region, other than the ground contact portion, which is projected at a position closest to the projection position of the ground contact portion when projected onto the second virtual line, and the ground contact portion provided in the second region may be Wa / 2 or more. According to this embodiment, a distance of Wa / 2 or more can be maintained in the direction along the second virtual line between the contact portion located closest to the ground contact portion in the first region and the ground contact portion, thereby suppressing the possibility of a short circuit occurring between the ground terminal and a terminal other than the ground terminal.

[0220] (13) In the above embodiment, in the first region, among the contact portions other than the ground contact portion, there may be no other contact portion between the contact portion that is projected onto the second virtual line at a position closest to the projection position of the ground contact portion and the ground contact portion provided in the second region. According to this embodiment, since there is no other contact portion between the contact portion located closest to the ground contact portion in the first region and the ground contact portion, it is possible to reduce the possibility of a short circuit occurring between the ground terminal and a terminal other than the ground terminal.

[0221] (14) In the above embodiment, there may be no other contacts on the imaginary line segment connecting the data contacts and the clock contacts. With this embodiment, even if a short circuit occurs between the data terminal and the clock terminal, the short circuit can be detected at an early stage.

[0222] (15) In the above embodiment, there may be no other contact portion on the imaginary line segment connecting the data contact portion and the reset contact portion. With this embodiment, even if a short circuit occurs between the data terminal and the reset terminal, the short circuit can be detected at an early stage.

[0223] (16) In the above embodiment, there may be no other contacts on the imaginary line segment connecting the data contacts and the power contacts. With this embodiment, even if a short circuit occurs between the data terminal and the power terminal, the short circuit can be detected at an early stage.

[0224] (17) In the above embodiment, when the board is mounted in a direction along the direction of gravity, the clock contact portion, the power contact portion, and the reset contact portion may be disposed closer to the direction of gravity than the data contact portion, and at least one of the clock contact portion, the power contact portion, and the reset contact portion may be disposed so as to be projected between a projection position of the data contact portion and a projection position of the ground contact portion. According to this embodiment, when a foreign object such as a highly conductive liquid falls along the direction of gravity, any one of the terminals having a plurality of other contact portions excluding the data contact portion is short-circuited before the data terminal and the ground terminal are short-circuited, thereby detecting a short circuit between the data terminal and the terminal including the other contact portions, and suppressing the possibility of a short circuit occurring between the data terminal and the ground terminal.

[0225] (18) In the above-described embodiment, the clock contact portion, the data contact portion, the power contact portion, the reset contact portion, and the ground contact portion may be arranged to form a plurality of rows. This embodiment allows the contact portions to be arranged efficiently within a limited area.

[0226] (19) In the above embodiment, the plurality of rows may be configured with two rows, and two adjacent contact portions on the base member projected onto the second virtual line may form different rows. According to this embodiment, the contact portions can be efficiently arranged within a limited area.

[0227] (20) In the above embodiment, the data contacts and the ground contacts may be arranged in different columns, and any one of the clock contacts, the power contacts, and the reset contacts may be arranged to be projected between the projection positions of the data contacts and the ground contacts. According to this embodiment, by arranging the ground contacts and the data contacts in different columns and arranging other contacts between them, the possibility of a short circuit occurring between the data terminal and the power terminal can be reduced. Even if a short circuit occurs between the data terminal and a terminal including another contact, the short circuit can be easily detected.

[0228] (21) In the above embodiment, the first terminal may be further used to detect whether the board is attached to the printing device. According to this embodiment, the first terminal can be used to detect whether the board is attached to the printing device.

[0229] (22) In the above embodiment, the fifth terminal may be a ground terminal, and the voltage supplied to the first terminal, the second terminal, the third terminal, and the fourth terminal may be a voltage acceptable to the device. A voltage acceptable to the device may be, for example, a voltage lower than the voltage used to drive a print head, a voltage equivalent to a power supply voltage, a voltage lower than the withstand voltage of the device, or a voltage at which the device is not destroyed or malfunctions. According to this embodiment, by inputting an acceptable voltage to the device, the possibility of the device being destroyed or malfunctioning is suppressed, and even if a short circuit occurs between at least some of the terminals, the printing device can detect the short circuit.

[0230] (23) In the above aspect, the first virtual line may be along a direction that includes a component of a mounting direction in which the substrate is mounted on the printing apparatus.

[0231] (24) In the above aspect, the voltage supplied to the fourth terminal may be used to drive the device.

[0232] (25) In the above embodiment, the device may output a signal indicating that the first terminal and any terminal among the plurality of terminals other than the first terminal are not short-circuited, and that the board is attached to the printing device.

[0233] (26) In the above aspect, the device may store information about the liquid contained in the liquid container.

[0234] (27) According to a second aspect of the present disclosure, there is provided a substrate configured to be mounted on a printing device having a print head, a liquid introduction section for introducing liquid into the print head, a storage section in which the liquid introduction section is provided and which stores a liquid container, and a plurality of device-side terminals provided in the storage section, and configured to come into contact with the plurality of device-side terminals. the substrate includes a base material, a device provided on the base material, and a plurality of terminals provided on the base material, the plurality of terminals including a first terminal connected to the device and including a first contact portion to be in contact with a corresponding first device-side terminal of the plurality of device-side terminals, and a group of other terminals, the group of other terminals including at least a second terminal connected to the device and including a second contact portion to be in contact with a corresponding second device-side terminal of the plurality of device-side terminals, and a third terminal connected to the device and including a third contact portion to be in contact with a corresponding third device-side terminal of the plurality of device-side terminals, the second terminal being used to detect whether or not the second terminal is short-circuited with at least one of the group of other terminals excluding the second terminal, In plan view,When two perpendicular straight lines are defined as a first virtual line and a second virtual line, and all of the contact portions of all of the terminals provided on the substrate are projected onto the second virtual line, all of the contact portions are projected at different positions, and the first virtual line passes midway between the two furthest projection positions of all of the contact portions, and when one region with respect to the first virtual line is defined as a first region and the other region is defined as a second region, some of the contact portions are arranged in the first region and the remaining contact portions are arranged in the second region, the some of the contact portions include the second contact portion and the third contact portion, the remaining contact portions include the first contact portion, and the some of the contact portions and the remaining contact portions are arranged asymmetrically with respect to the first virtual line.

[0235] Foreign matter tends to gather at the contact portion of the terminal. For example, a foreign matter may be caught between the device side terminal and the terminal. For example, if the terminal of the board is arranged on a surface including a component in the direction of gravity, when a foreign matter intrudes toward the board from above in the direction of gravity, the foreign matter may be trapped at the contact portion of the terminal and remain there. For example, if the foreign matter is liquid, the liquid tends to gather at the contact portion of the terminal due to the effect of capillary force. Therefore, by defining the arrangement of the contact portion of the terminal, rather than the arrangement of the terminal, the possibility of short circuit occurrence can be suppressed regardless of the area or shape of the terminal. In this embodiment, the second contact portion and the third contact portion are provided in the first region of the board, and the first contact portion, which is desired to suppress short circuit with some of the contact portions, is provided in the second region. By arranging the contact portions in this manner, the possibility of short circuit occurrence can be suppressed. The reason for this is that the first contact portion is away from the contact portions of other terminals and the distance from the other contact portions is secured, so that the possibility of short circuit occurrence between the first contact portion and the other contact portions can be suppressed. In addition, foreign matter tends to gather near the contact parts, but because a distance is maintained between the first contact part and the other contact parts, foreign matter that gathers on the first contact part is less likely to reach the other terminals than when the first contact part and the other contact parts are arranged in close proximity. In addition, foreign matter that gathers on the second contact part to the third contact part is less likely to reach the first terminal. This is true regardless of the area or shape of the terminal.

[0236] In this embodiment, 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, the number of contact parts on the substrate can be reduced. This increases the degree of freedom in arranging the contact parts on the substrate, and further reduces the possibility of short circuiting between the terminals.

[0237] Among the multiple terminals, there are contact parts that should be arranged apart from the other contact parts in order to prevent the occurrence of short circuits between the terminals. When the contact part that should be arranged apart is the first contact part, the second and third contact parts are arranged in a first region that is one region with respect to a first virtual line, and the first contact part is arranged in a second region that is the other region. In other words, the contact part in the first region and the contact part in the second region are arranged on the base material so as to be asymmetric with respect to the first virtual line.

[0238] In this embodiment, all the contact parts are arranged so as to be projected to different positions in the direction along the second virtual line. When the direction of the first virtual line includes the mounting direction, if a foreign object is present, the foreign object may be dragged by the device-side terminal during the process of mounting the liquid storage container to the printing device, and a short circuit may occur between the terminals. By arranging all the contact parts on the base material so that they are projected to different positions when all the contact parts are projected onto the second virtual line, the possibility of a short circuit occurring can be suppressed. When focusing on the first contact parts, no contact parts other than the first contact parts are located on a straight line along the first virtual line that passes through the first contact parts. On the other hand, contact parts other than the first contact parts are located in the direction along the second virtual line. This positional relationship is also true for contact parts other than the first contact parts. Therefore, the probability of a short circuit occurring in a direction including the direction along the second virtual line is higher than the probability of a short circuit occurring in a direction along the first virtual line. By specifying the arrangement of the contact parts in the direction along the second virtual line, the possibility of a short circuit occurring can be suppressed. Alternatively, by arranging all contact portions on the substrate so that they are projected at different positions on the second virtual line, the spacing between the contact portions can be secured in the direction along the second virtual line on the substrate, thereby reducing the possibility of a short circuit occurring between the terminals.

[0239] (28) In the above embodiment, the first contact portion may be a ground contact portion, the first terminal may be a ground terminal, the second contact portion may be a data contact portion, 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. This embodiment can reduce the possibility of short-circuiting between the ground contact portion and the data contact portion and the clock contact portion.

[0240] (29) According to a third aspect of the present disclosure, there is provided a substrate configured to be mounted on a printing device having a print head, a liquid introduction section for introducing liquid into the print head, a storage section in which the liquid introduction section is provided and which stores a liquid container, and a plurality of device-side terminals provided in the storage section, and configured to come into contact with the plurality of device-side terminals. the plurality of device-side terminals include 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; when two straight lines intersecting at right angles in a plan view are defined as a first virtual line and a 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 as a first projection position, a second projection position, a third projection position, a fourth projection position, and a fifth projection position, respectively, when the contact portions of all of the device-side terminals are projected onto the second virtual line, the contact portions of all of the device-side terminals are projected at different positions, when the first virtual line passes through the midpoint between the two farthest projection positions among the projection positions, and when one region with respect to the first virtual line is defined as a first region and the other region is defined as a second region, the contact portions of some of the contact portions of all of the device-side terminals are arranged in the first region and the contact portions of the remaining device-side terminals are arranged in the second region, the contact portions of the some of the 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, the contact portions of the remaining device-side terminals include the contact portion of the fifth device-side terminal, and the contact portions of the some of the device-side terminals and the contact portions of the remaining device-side terminals are arranged asymmetrically with respect to the first virtual line.The substrate comprises a base material, a device provided on the base material, and a plurality of terminals provided on the base material, the plurality of terminals including at least a first terminal, a second terminal, a third terminal, a fourth terminal, and a fifth terminal, the first terminal including a first contact portion connected to the device and to come into contact with a corresponding first device-side terminal among a plurality of device-side terminals of the printing device when the substrate is attached to the printing device, the second terminal including a second contact portion connected to the device and to come into contact with a corresponding second device-side terminal among the plurality of device-side terminals when the substrate is attached to the printing device, and the third terminal including a first contact portion connected to the device and to come into contact with a corresponding second device-side terminal among the plurality of device-side terminals when the substrate is attached to the printing device. the fourth terminal is connected to the device and includes a fourth contact portion that should contact the corresponding fourth apparatus-side terminal of the plurality of apparatus-side terminals when attached to the printing device, the fifth terminal is connected to the device and includes a fifth contact portion that should contact the corresponding fifth apparatus-side terminal of the plurality of apparatus-side terminals when attached to the printing device, and the first terminal is used to detect whether the first terminal is short-circuited to at least one of the second terminal, the third terminal, and the fourth terminal.

[0241] Foreign matter tends to gather at the contact portion of the terminal. For example, a foreign matter may be caught between the device side terminal and the terminal. For example, when the terminal of the board is arranged on a surface including a component in the direction of gravity, when a foreign matter intrudes toward the board from above in the direction of gravity, the foreign matter may be trapped at the contact portion of the terminal and remain there. For example, when the foreign matter is liquid, the liquid tends to gather at the contact portion of the terminal due to the effect of capillary force. Therefore, by defining the arrangement of the contact portion of the terminal, rather than the arrangement of the terminal, the possibility of short circuit occurrence can be suppressed regardless of the area or shape of the terminal. In this embodiment, for a 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 desired to suppress short circuit with other contact portions, is arranged in the second region, and the first to fifth contact portions are provided on the substrate so as to correspond to the contact portions of those device side terminals in the board. By arranging the contact parts in this way, the possibility of short circuit occurrence can be suppressed. The reason is that the fifth contact part is away from the contact parts of the other terminals and the distance from the other contact parts is secured, so the possibility of short circuit occurrence between the fifth contact part and the other contact parts can be suppressed. In addition, foreign matter tends to gather near the contact parts, but since the distance is secured between the fifth contact part and the other contact parts, the foreign matter gathered at the fifth contact part is less likely to reach the contact parts of the other terminals compared to when the fifth contact part and the other contact parts are arranged in close proximity. In addition, the foreign matter gathered at the first contact part to the fourth contact part is less likely to reach the contact part of the fifth terminal. This is the same regardless of the area and shape of the terminal. Examples of foreign matter include foreign matter similar to that in the first embodiment. Regardless of the possibility of these foreign matter actually occurring, there is a possibility of a short circuit caused by foreign matter as long as the possibility is not zero. In this embodiment, the possibility can be suppressed.

[0242] Among the multiple terminals, there are contact parts that should be arranged apart from the other contact parts in order to prevent the occurrence of short circuits between the terminals. When the contact part that should be arranged apart is the fifth contact part, the first to fourth contact parts corresponding to the first device-side terminal to the fourth device-side terminal are arranged on the substrate in a first region that is one region with respect to the first virtual line, and the fifth contact part corresponding to the fifth device-side terminal is arranged on the substrate in a second region that is the other region with respect to the first virtual line. In other words, the contact parts in the first region and the contact parts in the second region are arranged on the substrate so as to be asymmetric with respect to the first virtual line.

[0243] In this embodiment, the contact parts corresponding to the contact parts of all the device-side terminals are arranged so as 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, if a foreign object is present, the foreign object may be dragged by the device-side terminal during the process of mounting the liquid storage container to the printing device, and a short circuit may occur between the terminals. By arranging all the contact parts on the base material so that the contact parts of all the device-side terminals are projected at different positions when projected onto the second virtual line, the possibility of a short circuit occurring can be suppressed. When focusing on the first contact parts, no contact parts other than the first contact parts are located on a straight line along the first virtual line that passes through the first contact parts. On the other hand, contact parts other than the first contact parts are located in the direction along the second virtual line. This positional relationship is also true for contact parts other than the first contact parts. Therefore, the probability of a short circuit occurring in a 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 specifying the arrangement of the contact parts in the direction along the second virtual line, the possibility of a short circuit occurring can be suppressed. Alternatively, by arranging all contact portions on the substrate so that they are projected at different positions on the second virtual line, it is possible to ensure spacing between the contact portions in the direction along the second virtual line on the substrate, thereby reducing the possibility of a short circuit occurring between the terminals.

[0244] In addition to the above aspects, the present disclosure can be realized in the form of a liquid storage container, a printing system, use of a substrate, use of a liquid storage container, a manufacturing method for a substrate or a liquid storage container, etc. [Explanation of symbols]

[0245] 4, 4C, 4z...storage section, 5...print head, 6...liquid introduction section, 20, 20A, 20C...printing device, 22...motor, 26...roller, 30...carriage, 31...cable, 32...carriage motor, 34...sliding shaft, 36...drive belt, 38...pulley, 39...control unit, 40...main control section, 45...connection bus, 46...bus, 50...sub-control section, 61...case, 65...mounting chamber, 70...operation section, 80...connector, 89, 89a, 89z...corner section, 90...computer, 100, 100A to 100F, 100T, 100g, 100 h, 100p to 100s, 100w, 100x, 100y, 100z...liquid storage container, 101, 101z...liquid storage body, 101wf...first wall, 101wr...second wall, 101wb...third wall, 101wu...fourth wall, 101wsa...fifth wall, 101wsb...sixth wall, 101ya...liquid storage body, 101yb...adapter, 101za...storage body, 101zb...cover member, 104...liquid supply section, 104f...film, 104op...liquid supply port, 105...liquid flow tube, 106...protective tube, 107...bath, 110...liquid detection member, 111... Liquid containing bag, 112...connecting member, 120, 120A to F, 120Td, 120U, 120V, 120X, 120ab, 120ac, 120ad, 120ae, 120b, 120c, 120d, 120e, 120f, 120g...substrate, 120bd...base material, 120h...mounting base material, 120UA...first substrate area, 120UB...second substrate area, 120UC...third substrate area, 120UD...fourth substrate area, 120fa, 120faa, 120fab...front surface, 120fb...rear surface, 121...notch, 122...hole, 124a...first substrate, 124b...second 2 substrate, 130, 130A to 130F, 130a, 130b ... device, 134 ... opening, 136, 136A to D ... processing section, 136a ... first processing section, 136b ... second processing section, 138 ... memory section, 139 ... resin, 150 ... ink chamber, 201 ... main body, 210 ... data terminal, 220 ... clock terminal, 230 ... power terminal, 240 ... reset terminal, 250, 250a, 250b, 250c, 250d ... ground terminal, 290 ... terminal, 301 ... slit, 310 ... first container engagement section, 320 ... second container engagement section, 400, 400Td ... connection mechanism, 403,403A to 403E... contact portion forming member, 405... terminal holding portion, 410... device side terminal, 411... determination portion, 412... attachment determination portion, 414... short circuit determination portion, 415... CPU, 416... device side first memory portion, 410, 420, 430, 440, 450, 490... device side terminal, 421... determination portion, 424... opening, 425... container side engagement structure, 431 to 435, 439... relay terminal, 441... power supply, 474... attachment / detachment opening, 495... display panel, 500... sub-control board, 510, 520, 530, 540, 550, 590... sub-control board terminal, 5 11...switching unit, 516...apparatus side second memory unit, 600...container mounting unit, 812, 812A-D, 822...liquid circulation pipes, 814, 814A-D...liquid storage unit, 824...liquid container, 1000, 1000A, 1000C, 1000D, 1000E...printing system, BCC1...first execution command, BCC2...second execution command, C1...first virtual line, C2...second virtual line, CMP...center, CMT...command period, D1-D9...cycle, Dan-Den, DAn-DEn...distance, DB1...first identification data, DB2...second identification data ,EL...conductive line, FD...first direction, FS...first response signal, FL,fL...first line segment, HSDA, HSDA1~HSDA6,HVDD,HVDD1~HVDD4,HVDD6,HRST,HRST1~HRST4,HRST6,HSCK,HSCK1~HSCK4,HSCK6,HVSS...host terminal, LSDA, LSDA1~LSDA6...data line, LVDD,LVDD1~LVDD4,LVDD6...power line, LRST,LRST1~LRST4,LRST6...reset line, LSCK,LSCK1~LSCK4,LSC K6...clock line, LVSS...ground line, MD...mounting direction, MD1...first mounting direction, MD2...second mounting direction, MP...midpoint, P1...first parity data, P2...second parity data, PA...printing medium, Pr1, Pr2...projection, R1...first row, R2...second row, RD...rotation mounting direction, RS...request signal, RST...reset signal, Rg1...first area, Rg2...second area, Rp...rotation center, SCK...clock signal, SD...second direction, SDA, SDA1~SDA6...data signal, SL, sL...second line segment, SS...second response signal, TL,tL...third line segment, VDD...power supply voltage, VSS...ground potential, Vcr...virtual circle, Wa...distance, cp...contact, cpa...part of contact, cpb...remaining contact, cpc...clock contact, cpd...data contact, cpr...reset contact, cpvd...power contact, cpvs...ground contact, dcp...device side terminal contact, dcpa...part of contact, dcpb...remaining contact, dcpc...device side clock contact, dcpd...device side data contact, dcpr...device side reset contact, dcpvd...device side power contact, dcpvs...device side ground contact, t1...first timing, t2...second timing, t3...third timing, t,ta,tb...timing, swc,swd,swvd,swr,swvs...projection position,

Claims

1. A substrate configured to be mounted on a printing device including a print head, a liquid introduction section that introduces liquid into the print head, a storage section in which the liquid introduction section is provided and which stores a liquid storage container, and a plurality of device-side terminals that are provided in the storage section, and to come into contact with the plurality of device-side terminals, A substrate; A device provided on the substrate; A plurality of terminals provided on the substrate, The plurality of terminals include a first terminal connected to the device and including a first contact portion to be in contact with a corresponding first apparatus-side terminal among the plurality of apparatus-side terminals; and other terminal groups, The other terminal group is: a second terminal connected to the device and including a second contact portion to be in contact with a corresponding second device-side terminal among the plurality of device-side terminals; a third terminal connected to the device and including a third contact portion to be in contact with a corresponding third device-side terminal among the plurality of device-side terminals; the second terminal is used to detect whether or not the second terminal is short-circuited to at least one of the other terminals excluding the second terminal; In a plan view of the substrate, when two perpendicular straight lines are defined as a first virtual line and a second virtual line, and all of the contact portions of all of the terminals provided on the base material are projected onto the second virtual line, all of the contact portions are projected at different positions, and the first virtual line passes through the midpoint between the two most distant projected positions of all of the contact portions; When one region is defined as a first region and the other region is defined as a second region with respect to the first virtual line, some of all of the contact portions are disposed in the first region and the remaining contact portions are disposed in the second region, the some of the contact portions include the second contact portion and the third contact portion, and the remaining contact portions include the first contact portion, A substrate, wherein the some of the contact portions and the remaining contact portions are arranged asymmetrically with respect to the first imaginary line.

2. 2. The substrate of claim 1 , the first contact portion is a ground contact portion and the first terminal is a ground terminal; the second contact is a data contact and the second terminal is a data terminal; The third contact portion is a clock contact portion and the third terminal is a clock terminal.

3. 3. The substrate according to claim 2, A substrate, wherein a distance between the data contact and the ground contact is greater than a distance between the data contact and the clock contact.

4. The substrate according to claim 2 or 3, A substrate, wherein no other contacts exist on an imaginary line segment connecting said data contacts and said clock contacts.

5. The substrate according to any one of claims 2 to 4, The other terminal group includes a reset terminal including a reset contact portion that is to come into contact with a corresponding device-side terminal among the plurality of device-side terminals, the reset contact portion being included in the some of the contact portions.

6. 6. The substrate according to claim 5, A substrate, wherein a distance between the data contact and the ground contact is greater than a distance between the data contact and the reset contact.

7. The substrate according to claim 5 or 6, A substrate, wherein no other contact portion exists on an imaginary line segment connecting the data contact portion and the reset contact portion.

8. The substrate according to any one of claims 2 to 4, The other terminal group includes a power supply terminal including a power supply contact portion to be in contact with a corresponding one of the plurality of device-side terminals, the power supply contact portion being included in the some of the contact portions.

9. 9. The substrate of claim 8, A substrate, wherein a distance between the data contact and the ground contact is greater than a distance between the data contact and the power contact.

10. The substrate according to claim 8 or claim 9, A substrate, wherein no other contacts exist on an imaginary line segment connecting the data contacts and the power contacts.

11. The substrate according to any one of claims 5 to 7, A substrate, the substrate being arranged such that at least one of the clock contact portion and the reset contact portion is projected between the projected position of the data contact portion and the projected position of the ground contact portion.

12. The substrate according to any one of claims 5 to 7, A substrate, wherein the contact portions of the other terminal groups excluding the data contact portion are positioned on the side of the data contact portion in the direction in which the substrate is attached to the printing device, and the reset contact portion is positioned so as to be projected between the projection position of the data contact portion and the projection position of the ground contact portion.

13. A substrate according to any one of claims 5 to 7, A substrate, wherein when the substrate is mounted in a direction along the direction of gravity, the contact portions of the other terminal groups excluding the data contact portion are positioned on the gravity direction side of the data contact portion, and the reset contact portion is positioned so as to be projected between the projection position of the data contact portion and the projection position of the ground contact portion.

14. The substrate according to any one of claims 8 to 10, A substrate, the substrate being arranged such that at least one of the clock contact portion and the power supply contact portion is projected between the projected position of the data contact portion and the projected position of the ground contact portion.

15. A substrate according to any one of claims 8 to 10, A substrate, wherein the contact portions of the other terminal groups excluding the data contact portion are positioned on the side of the data contact portion in the direction in which the substrate is attached to the printing device, and the power supply contact portion is positioned so as to be projected between the projection position of the data contact portion and the projection position of the ground contact portion.

16. A substrate according to any one of claims 8 to 10, A board, wherein when the board is mounted in a direction along the direction of gravity, the contact portions of the other terminal groups excluding the data contact portion are positioned on the gravity direction side of the data contact portion, and the power supply contact portion is positioned so as to be projected between the projection position of the data contact portion and the projection position of the ground contact portion.

17. A substrate according to any one of claims 2 to 16, When a distance in a direction along the second imaginary line between a contact portion of the other terminal group in the first region that is projected onto the second imaginary line at a position farthest from the projection position of the ground contact portion and the ground contact portion provided in the second region is defined as Wa, A substrate, in which in the first region, a distance in a direction along the second imaginary line between a contact portion of the other terminal group that is projected onto the second imaginary line at a position closest to the projection position of the ground contact portion and the ground contact portion provided in the second region is Wa / 2 or more.

18. A substrate according to any one of claims 2 to 17, A substrate, in which, in the first region, there are no other contact portions between a contact portion of the other terminal groups that is projected onto the second virtual line at a position closest to the projection position of the ground contact portion and the ground contact portion provided in the second region.

19. A substrate according to any one of claims 1 to 18, The second terminal is used to detect whether the board is installed in the printing device.

20. A substrate according to any one of claims 1 to 19, The first imaginary line is along a direction that includes a component of a direction in which the substrate is loaded into the printing apparatus.

21. A substrate according to any one of claims 1 to 20, The device outputs a signal indicating that the second terminal is not shorted to any terminal among the plurality of terminals other than the second terminal, and that the board is attached to the printing apparatus.

22. A liquid container is attached to a storage section of a printing device including a print head, a liquid introduction section that introduces liquid to the print head, a storage section in which the liquid introduction section is provided, and a plurality of device-side terminals provided in the storage section, A liquid container capable of containing liquid; a liquid supply unit that is attached to the liquid introduction unit of the printing device and has a liquid supply port that supplies liquid from the liquid container to the liquid introduction unit; A device, a plurality of terminals on a wall of a liquid storage container configured to come into contact with the plurality of device-side terminals; The plurality of terminals include a first terminal connected to the device and including a first contact portion to be in contact with a corresponding first device-side terminal of a plurality of device-side terminals of the printing device; and other terminal groups, The other terminal group is: a second terminal connected to the device and including a second contact portion to be in contact with a corresponding second device-side terminal among the plurality of device-side terminals; a third terminal connected to the device and including a third contact portion to be in contact with a corresponding third device-side terminal among the plurality of device-side terminals; the second terminal is used to detect whether or not the second terminal is short-circuited to at least one of the other terminals excluding the second terminal; When the contact portions of the plurality of terminals are viewed in plan, when two perpendicular straight lines are defined as a first virtual line and a second virtual line, and all of the contact portions of all of the terminals provided on the liquid storage container are projected onto the second virtual line, all of the contact portions are projected at different positions, and the first virtual line passes through the middle between two projection positions that are the furthest from each other among the projection positions of all of the contact portions; When one region is defined as a first region and the other region is defined as a second region with respect to the first virtual line, some of all of the contact portions are disposed in the first region and the remaining contact portions are disposed in the second region, the some of the contact portions include the second contact portion and the third contact portion, and the remaining contact portions include the first contact portion, A liquid storage container, wherein the some contact portions and the remaining contact portions are disposed asymmetrically with respect to the first imaginary line.

23. 23. The liquid storage container according to claim 22, the first contact portion is a ground contact portion and the first terminal is a ground terminal; the second contact is a data contact and the second terminal is a data terminal; The liquid container, wherein the third contact portion is a clock contact portion, and the third terminal is a clock terminal.

24. 24. The liquid storage container according to claim 23, A liquid containing container, wherein a distance between the data contact and the ground contact is greater than a distance between the data contact and the clock contact.

25. 25. The liquid storage container according to claim 23 or 24, A liquid storage container, wherein no other contact portion exists on an imaginary line segment connecting the data contact portion and the clock contact portion.

26. A liquid storage container according to any one of claims 23 to 25, A liquid storage container, wherein the other terminal group includes a reset terminal including a reset contact portion that is to come into contact with a corresponding device-side terminal among the plurality of device-side terminals, and the reset contact portion is included in the some of the contact portions.

27. 27. The liquid storage container according to claim 26, A liquid containing container, wherein a distance between the data contact portion and the ground contact portion is greater than a distance between the data contact portion and the reset contact portion.

28. 28. The liquid storage container according to claim 26 or 27, A liquid storage container, wherein no other contact portion exists on an imaginary line segment connecting the data contact portion and the reset contact portion.

29. 29. A liquid storage container according to any one of claims 26 to 28, A liquid storage container, wherein the contact portions of the other terminal groups excluding the data contact portion are positioned on the side of the data contact portion in the direction in which the liquid storage container is attached to the printing device, and the reset contact portion is positioned so as to be projected between the projection position of the data contact portion and the projection position of the ground contact portion.

30. 29. A liquid storage container according to any one of claims 26 to 28, A liquid storage container, wherein when the liquid storage container is attached in a direction along the direction of gravity, the contact portions of the other terminal groups excluding the data contact portion are positioned on the gravity direction side of the data contact portion, and the reset contact portion is positioned so as to be projected between the projection position of the data contact portion and the projection position of the ground contact portion.

31. A liquid storage container according to any one of claims 23 to 30, A liquid storage container, wherein the other terminal group includes a power supply terminal including a power supply contact portion that is to come into contact with a corresponding device-side terminal among the plurality of device-side terminals, and the power supply contact portion is included in the some of the contact portions.

32. 32. The liquid storage container according to claim 31, A liquid containing container, wherein a distance between the data contact and the ground contact is greater than a distance between the data contact and the power contact.

33. 33. The liquid storage container according to claim 31 or 32, A liquid storage container, wherein no other contact portion exists on an imaginary line segment connecting the data contact portion and the power contact portion.

34. A liquid storage container according to any one of claims 31 to 33, A liquid containing container arranged such that at least one of the clock contact portion and the power supply contact portion is projected between the projected position of the data contact portion and the projected position of the ground contact portion.

35. A liquid storage container according to any one of claims 31 to 33, A liquid storage container, wherein the contact portions of the other terminal groups excluding the data contact portion are positioned on the side of the data contact portion in the direction in which the liquid storage container is attached to the printing device, and the power supply contact portion is positioned so as to be projected between the projection position of the data contact portion and the projection position of the ground contact portion.

36. A liquid storage container according to any one of claims 31 to 33, A liquid storage container, wherein when the liquid storage container is attached in a direction along the direction of gravity, the contact portions of the other terminal groups excluding the data contact portion are positioned on the gravity direction side of the data contact portion, and the power supply contact portion is positioned so as to be projected between the projection position of the data contact portion and the projection position of the ground contact portion.

37. A liquid storage container according to any one of claims 23 to 36, When the distance in the direction along the second imaginary line between the contact portion of the other terminal group in the first region that is projected onto the second imaginary line at a position farthest from the projection position of the ground contact portion and the ground contact portion provided in the second region is defined as Wa, A liquid storage container, in which in the first region, a distance in a direction along the second imaginary line between a contact portion of the other terminal group that is projected onto the second imaginary line at a position closest to the projection position of the ground contact portion and the ground contact portion provided in the second region is Wa / 2 or more.

38. A liquid storage container according to any one of claims 23 to 37, A liquid storage container, in which, in the first region, there are no other contact portions between the contact portion of the other terminal group that is projected onto the second virtual line at a position closest to the projection position of the ground contact portion and the ground contact portion provided in the second region.

39. A liquid storage container according to any one of claims 22 to 38, The second terminal is used to detect whether the liquid container is attached to the printing device.

40. A liquid storage container according to any one of claims 22 to 39, A liquid container, wherein the first virtual line is along a direction that includes a component of a direction in which the liquid container is attached to the printing device.

41. A liquid storage container according to any one of claims 22 to 40, A liquid container, wherein the device outputs a signal indicating that the second terminal and a terminal other than the second terminal among the plurality of terminals are not short-circuited, and that the liquid container is attached to the printing device.

42. A liquid storage container according to any one of claims 22 to 41, The plan view is a plan view of contact portions of the plurality of terminals when the liquid container is attached to the container part.

Images