Printing apparatus

Abstract

This invention provides a printing apparatus that reduces the possibility of misinsertion of a USB-Type-C cable plug. The printing apparatus includes: a printing unit for printing on a medium; a control unit for controlling the driving of the printing unit; a power connector for supplying power to the control unit; a first jack connector electrically connected to a first external device, enabling communication between the first external device and the control unit; and a second jack connector electrically connected to a second external device, enabling communication between the second external device and the control unit. The second jack connector allows the plug of a USB-Type-C cable to be physically inserted, while the power connector does not allow the plug to be physically inserted. The power connector is disposed between the first jack connector and the second jack connector.

Description

Technical Field

[0001] This invention relates to printing apparatus. Background Technology

[0002] Currently, printing apparatuses capable of printing on media such as paper are known. Such printing apparatuses are equipped with a USB (Universal Serial Bus) interface for connecting the printing apparatus to external devices. The USB interface includes, for example, a USB-Type-A connector or a LAN connector. The USB-Type-A connector is used to connect the external device that sends commands to execute printing data to the printing apparatus that receives the data and performs the printing. The LAN connector is used to connect the printing apparatus to a network.

[0003] Furthermore, in recent years, there has been an increasing demand for printing apparatuses that can not only communicate data with external devices and connect to networks, but also exchange power with connected external devices. Patent Document 1 discloses a printing apparatus capable of supplying power to connected external devices via a USB-Type-C interface.

[0004] Patent Document 1: Japanese Patent Application Publication No. 2017-226130

[0005] However, in the printed device equipped with a USB-Type-C interface described in Patent Document 1, it is possible to mistakenly insert the plug of the USB-Type-C cable into other jack connectors, such as USB-Type-A jack connectors or LAN jack connectors. Summary of the Invention

[0006] One aspect of the printing apparatus of the present invention includes:

[0007] The printing department is responsible for printing on the media.

[0008] The control unit controls the drive of the printing unit;

[0009] A power connector supplies power to the control unit;

[0010] A first connector socket is electrically connected to a first external device, enabling the first external device to communicate with the control unit; and

[0011] The second connector is electrically connected to a second external device, enabling communication between the second external device and the control unit.

[0012] The first connector is a USB-Type-C connector.

[0013] The second jack connector is a LAN or DK jack connector.

[0014] The second connector allows a USB-Type-C cable plug to be physically inserted.

[0015] The plug cannot be physically inserted into the power connector.

[0016] The power connector is disposed between the first socket connector and the second socket connector. Attached Figure Description

[0017] Figure 1 It is a diagram showing the general structure of a printing system.

[0018] Figure 2 This is a block diagram of the printing equipment system.

[0019] Figure 3 This is a block diagram of the control section of the printing apparatus.

[0020] Figure 4 This is a block diagram of the USB controller and USB interface.

[0021] Figure 5 This is a block diagram of the USB controller and USB-Type-C interface.

[0022] Figure 6 This is a block diagram of the USB controller and USB-Type-C interface.

[0023] Figure 7 This is a block diagram of the USB controller and USB-Type-A interface.

[0024] Figure 8 This is a block diagram of the USB controller and USB-Type-A interface.

[0025] Figure 9 This is a block diagram of the USB controller and the USB-Type-B interface.

[0026] Figure 10 It is a three-dimensional diagram of the printing apparatus.

[0027] Figure 11 This is a three-dimensional view of the printing device as seen from the back.

[0028] Figure 12 It is a three-dimensional view of the printing device with the bottom and back covers removed.

[0029] Figure 13 This is a top view of the first connector surface and the second connector surface.

[0030] Figure 14 It is a 3D view of the cash drawer with the drawer tray closed.

[0031] Figure 15 It is a 3D view of the cash drawer with the drawer tray open.

[0032] Figure 16 It is a 3D diagram of a buzzer.

[0033] Figure 17 This is a simplified diagram of the substrate housed in the connector section.

[0034] Figure 18 This diagram shows the USB-Type-A cable, USB-Type-B cable, and USB-Type-C cable and their connectors.

[0035] Figure 19 This diagram shows the state of the USB-Type-A cable and USB-Type-C cable inserted into the connector in the first state.

[0036] Figure 20 This diagram shows the state of the USB-Type-A cable and USB-Type-C cable inserted into the connector in the second state.

[0037] Figure 21 This is a 3D view of the USB-Type-C connector.

[0038] Figure 22 This is a 3D view of the USB-Type-C connector.

[0039] Figure 23 This is a diagram showing the fixing part when viewed from above the first connector surface.

[0040] Figure 24 This is an exploded perspective view of the fixing part and the USB-Type-C connector.

[0041] Figure 25 This is a top view of the first connector surface and the second connector surface of variant example 1.

[0042] Figure 26 This is a simplified diagram of the substrate of Modified Example 2.

[0043] Figure 27 It is a diagram showing the general structure of an electronic device.

[0044] Explanation of reference numerals in the attached figures

[0045] 1…Printing system, 2…Printing apparatus, 3a…Smart device, 3b…Customer display, 3c…Handheld scanner, 4a…USB cable, 4b…USB cable, 4c…USB cable, 5…Power cable, 10a…External device, 10b…External device, 10c…External device, 10d…External device, 10e…External device, 11…Display unit, 12…Power circuit, 12a…First power circuit, 12b…Second power circuit, 13…Media outlet, 20…Printing unit, 21…Thermal printhead, 22…Printhead drive unit, 23…Conveyor 24…cutting section, 25…heating element, 26…thermal paper roll, 30…control section, 31…CPU, 32…RAM, 33…ROM, 34…USB controller, 35…non-volatile memory, 36…wireless communication section, 39…image processing section, 41…system bus, 42…image bus, 50…USB communication section, 53…USB hub, 54…PD controller, 60…USB interface, 121a…first coil, 121b…second coil, 122a…first integrated circuit, 122b…second integrated circuit, 200…main body Housing, 200a…First housing surface, 200b…Second housing surface, 200c…Third housing surface, 200d…Fourth housing surface, 200e…Fifth housing surface, 200f…Sixth housing surface, 201…Power switch, 202…Opening / closing lever, 203…Opening / closing door, 204…Feed switch, 205…First main frame surface, 206…Second main frame surface, 210…Media storage section, 215…Surrounding section, 220…Connector section, 221…First connector surface, 222…Second connector surface, 241…Bottom cover, 242…Cover side engaging section, 24 6…back cover, 247…cover side latching part, 255…cable outlet, 270…cash drawer, 273…drawer tray, 274…keyhole, 275…drawer pop-out cable, 280…buzzer, 281…volume adjustment knob, 283…speaker, 300…board, 301…mounting surface, 311…first side, 312…second side, 313…third side, 340a…prevention part, 340b…prevention part, 341…device controller, 342…main controller, 450a…right-angle component, 450b…right-angle component, 500…electronic device. Detailed Implementation

[0046] Hereinafter, preferred embodiments of the present invention will be described using the accompanying drawings. The drawings are for ease of explanation. Furthermore, the embodiments described below do not unduly limit the scope of the invention as described in the claims. Additionally, not all of the components described below are essential elements of the present invention.

[0047] 1. This implementation method

[0048] 1-1. Overview of the Printing System

[0049] Figure 1 This diagram illustrates the general configuration of the printing system 1 according to this embodiment. Such a printing system 1 is, for example, a printing system used in a shop, and has the functions of processing payments based on the goods or services purchased by the customer, notifying the customer of payment-related information, and issuing receipts based on the payment. For example, printing system 1 is an example of a POS (Point of Sale) system.

[0050] The printing system 1 includes a printing device 2, a smart device 3a, a customer display 3b, and a handheld scanner 3c. Furthermore, the printing system 1 may also be configured to omit or modify some of these elements, or to add other elements.

[0051] The printing apparatus 2 is powered by a power cable 5 connected to, for example, a commercial AC power source (not shown). Powered, the printing apparatus 2 prints on a medium P, which is discharged from a medium outlet 13. That is, the printed portion of the medium P is discharged from the medium outlet 13.

[0052] The smart device 3a, customer display 3b, and handheld scanner 3c, as described below, are examples of external devices that can be connected to the printing apparatus 2 via the USB interface 60 provided by the printing apparatus 2. Specifically, the smart device 3a is connected to the printing apparatus 2 via USB cable 4a, the customer display 3b is connected to the printing apparatus 2 via USB cable 4b, and the handheld scanner 3c is connected to the printing apparatus 2 via USB cable 4c.

[0053] In addition, Figure 1 The diagram illustrates an example of a smart device 3a, a customer display 3b, and a handheld scanner 3c connected to a printing apparatus 2, but the number of external devices that can be connected to the printing apparatus 2 is not limited to three. For example, the number of external devices that can be connected to the printing apparatus 2 depends on the USB standard. In the USB standard, the maximum number of external devices that can be connected is 127, therefore the maximum number of external devices that can be connected to the printing apparatus 2 is 127.

[0054] The smart device 3a is a terminal that a user can carry. For example, the smart device 3a is a tablet terminal or a smartphone. The smart device 3a has a communication unit that performs data communication according to a prescribed communication standard, and communicates with the printing device 2 through this communication unit.

[0055] Unless otherwise specified, "user" refers to a shop employee who provides goods or services to customers, or an employee who installs a printing system 1 and sets up an external device such as a printing device 2 or a smart device 3a in the shop.

[0056] The smart device 3a is equipped with a battery and operates using the power supplied by charging the battery. The smart device 3a receives power from the printing apparatus 2 to charge the battery. Furthermore, the smart device 3a includes various applications that generate commands or printing data to control the printing apparatus 2. For example, the applications included in such a smart device 3a are applications corresponding to a POS system.

[0057] The intelligent device 3a sends control-related commands and printing-related commands to the printing apparatus 2. Upon receiving these commands, the printing apparatus 2 stores them in a receive buffer (not shown).

[0058] Control-related commands include, for example, setting commands that instruct the setting of a format, and status request commands that instruct the request for information related to the status of the printing apparatus 2. In response to such a status request command, the printing apparatus 2 may, for example, send information to the smart device 3a indicating that printing has been completed.

[0059] Printing-related commands include, for example, print commands that instruct printing, line break commands that instruct line wrapping, line spacing commands that instruct line spacing, and cutter commands that instruct cutting the media P. Figure 2 Commands to drive any one of the thermal printhead 21, transport section 23, and cut-off section 24 shown.

[0060] The intelligent device 3a generates printing data such as text or images to be printed by the printing apparatus 2. The intelligent device 3a sends a printing command containing the generated printing data to the printing apparatus 2 according to a specified communication standard. The printing apparatus 2 executes the printing command and prints text, images, etc. on the medium P according to the printing data.

[0061] The customer display 3b can be placed on a store counter, for example. Customers who have purchased goods in the store can check the amount displayed on the customer display 3b to know the amount they paid. In addition, the customer display 3b can also display the name of the purchased goods or payment method, the date and time of purchase, the store name, etc.

[0062] For example, in the case of a self-checkout machine where customers check out and pay for their purchases themselves, the store clerk, as the user, can omit the customer display 3b from the printing system 1. In this case, it is preferable to display the content shown on the customer display 3b on a smart device 3a.

[0063] For example, it is preferable to display the name of the product purchased by the customer, the payment method, the date and time of purchase, and the name of the store on the smart device 3a. In this way, the store clerk, as the user, can omit the customer display 3b depending on the situation, reduce external equipment, thereby suppressing the power consumption of the printing system 1, and also simplifying the configuration of the printing system 1.

[0064] The handheld scanner 3c receives power from the printing unit 2 to operate. The printing unit 2 inputs information related to the image scanned by the handheld scanner 3c.

[0065] For example, a user uses a handheld scanner 3c to scan a barcode attached to a product. Information related to the scanned image is output to a smart device 3a via a printing device 2. The smart device 3a can then obtain information related to the product and information related to the price, etc.

[0066] Alternatively, for example, a store clerk using a handheld scanner 3c scans a barcode displayed by a customer via a smartphone or similar device. Information associated with the scanned image is output to the smart device 3a via a printing device 2.

[0067] The smart device 3a can obtain information related to the payment method and the payment amount. Based on this information, the smart device 3a can also complete the payment via an online payment service and display the payment completion information to the customer's display 3b via the printing device 2. Thus, the customer can confirm that the payment is complete.

[0068] 1-2. Functions of the printing system

[0069] Reference Figure 2 The functional composition of printing system 1 is explained. Figure 2 This is a block diagram of printing system 1.

[0070] The printing system 1 includes external devices 10a, 10b, 10c, 10d, and 10e, as well as a printing device 2. Furthermore, the aforementioned smart device 3a, customer display 3b, and handheld scanner 3c are examples of external devices 10a, 10b, 10c, 10d, and 10e.

[0071] The printing apparatus 2 includes a display unit 11, a power supply circuit 12, a media outlet 13, a printing unit 20, and a control unit 30.

[0072] The display unit 11 includes, for example, a plurality of LEDs. The display unit 11 is electrically connected to the control unit 30 and is controlled by the control unit 30. The display unit 11 displays information related to the status of the printing apparatus 2, for example, by flashing the LEDs. Alternatively, the display unit 11 may be a liquid crystal display device.

[0073] The power supply circuit 12 can supply power to the display unit 11, the printing unit 20, and the control unit 30. The power supply circuit 12 can be connected to a commercial AC power supply, for example, and can convert the power supplied from the commercial AC power supply into appropriate power and supply it to each unit.

[0074] The power supply circuit 12 includes, for example, a DC-DC converter, a resistive element, a switching element, and a transistor. The power supply circuit 12 can supply power to external devices 10a, 10b, 10c, 10d, and 10e that are electrically connected to the printing device 2 via the USB interface 60. For example, the power supply circuit 12 can supply power to a smart device 3a, a customer display 3b, and a handheld scanner 3c.

[0075] The printing unit 20 includes a thermal printhead 21 and a printhead drive unit 22. Furthermore, the printing unit 20 is electrically connected to a transport unit 23 and a cutting unit 24. The transport unit 23 has a transport roller (not shown), and the cutting unit 24 has a cutter including a first blade and a second blade. The first blade is a movable blade that moves between a standby position and a cutting position, and the second blade is a fixed blade that engages with the first blade when it moves to the cutting position to cut the recording paper. The printing unit 20 is electrically connected to a power supply circuit 12 and operates by receiving power from the power supply circuit 12. Furthermore, the printing unit 20 is controlled by a control unit 30. The printing unit 20 performs printing on a medium P, for example, based on printing data output from a smart device 3a, which is an example of an external device. Thus, an example of an electronic device equipped with a printing unit 20 that prints on a medium P is a printing apparatus 2.

[0076] The thermal printhead 21 has multiple heating elements 25. These heating elements 25 are arranged in a direction orthogonal to the transport direction of the thermal paper roll 26, which serves as the medium P. When the heating elements 25 are energized, heat is applied to the printing surface of the thermal paper roll 26. Thus, the thermal printhead 21 can print text or images on the thermal paper roll 26. Furthermore, a portion drawn from the thermal paper roll 26 can also be used as recording paper. Additionally, the printing unit 20 is not limited to printing using the thermal printhead 21; it can also perform inkjet printing, dot matrix printing, or laser printing. The medium P is not limited to the thermal paper roll 26; it can also be a sheet of paper, label paper, etc.

[0077] The printhead drive unit 22 is controlled by the control unit 30 to control the energization of the heating element 25 of the thermal printhead 21. The transport unit 23 is controlled by the control unit 30 to rotate the transport roller and transport the thermal roll paper 26. The cutting unit 24 is controlled by the control unit 30 to drive the first blade to slide toward the second blade, thereby cutting the thermal roll paper 26.

[0078] Figure 3 This is a block diagram of the control unit 30 of the printing apparatus 2. (Example) Figure 3As shown, the control unit 30 includes a CPU (Central Processing Unit) 31, RAM (Random Access Memory) 32, ROM (Read Only Memory) 33, a USB controller 34, non-volatile memory 35, a wireless communication unit 36, a USB communication unit 50, a BUS-IF 37, a device IF 38, and an image processing unit 39. The CPU 31 is an example of a control circuit. While a CPU is illustrated as an example of a control circuit, the control circuit can also be configured to replace the CPU or include hardware such as an FPGA (Field Programmable Gate Array) in addition to the CPU.

[0079] CPU 31 is responsible for the main control of printing apparatus 2. CPU 31 is electrically connected to RAM 32, ROM 33, USB controller 34, non-volatile memory 35, wireless communication unit 36, USB communication unit 50 and BUS-IF 37 via system bus 41.

[0080] RAM 32 is a read-write memory that provides the operating area for CPU 31. RAM 32 can also be used as an image memory for temporary storage of image data. ROM 33 is a boot ROM that stores the system's boot program. Non-volatile memory 35 stores system software or setting data that need to be retained even after the power to the printing device 2 is cut off.

[0081] The USB controller 34 controls the USB interface 60 via the system bus 41. That is, the USB controller 34 controls external devices 10a, 10b, 10c, 10d, and 10e connected to the USB interface 60. For example, the USB controller 34 can also be configured to include hardware such as a System on a Chip (SoC).

[0082] The wireless communication unit 36 ​​can connect to external devices using wireless communication. For example, the wireless communication unit 36 ​​can communicate with external devices according to standards such as Wi-Fi (registered trademark) and Bluetooth (registered trademark). The BUS-IF 37 is an interface that electrically connects the system bus 41 and the image bus 42. The BUS-IF 37 can function as a bus bridge for converting data structures.

[0083] In addition to BUS-IF37, BUS-IF37 is also electrically connected to device IF38 and image processing unit 39. Device IF38 is the interface connecting control unit 30, printing unit 20, and display unit 11. Device IF38 can perform synchronous and asynchronous data switching. Image processing unit 39 can perform prescribed processing on printing-related data output to printing unit 20.

[0084] 1-3. USB interface

[0085] Figure 4 This is a block diagram of the USB communication unit 50 and the USB interface 60. Additionally, Figures 5 to 9 This is a diagram showing the various interfaces included in a USB interface 60. (For example...) Figure 4 As shown, the USB communication unit 50 includes a USB interface 60, a USB hub 53, and a PD controller 54.

[0086] The USB hub 53 is electrically connected to the USB interface 60. Additionally, the USB hub 53 receives instructions from the USB controller 34 via the system bus 41 and operates between the USB controller 34 and the USB interface 60. For example, the USB hub 53 may also be configured to include hardware such as an integrated circuit. Furthermore, the USB hub 53 functions as a hub or repeater in a USB network.

[0087] The PD controller 54 controls the supply of power to an external device 10a connected to the USB-Type-C interface 60a, corresponding to the USBPD (Power Delivery) standard described later.

[0088] In addition, the USB interface 60 has USB-Type-C interfaces 60a and 60b, USB-Type-A interfaces 60c and 60d, and USB-Type-B interface 60e.

[0089] Figure 4 Examples shown are of USB-Type-C interface 60a connected to external device 10a, USB-Type-C interface 60b connected to external device 10b, USB-Type-A interface 60c connected to external device 10c, USB-Type-A interface 60d connected to external device 10d, and USB-Type-B interface 60e connected to external device 10e, but the examples are not limited to these. USB interface 60 may also include other standard USB interfaces such as mini-USB-Type-A or micro-USB-Type-A.

[0090] Figure 3The power supply circuit 12 shown includes a first power supply circuit 12a and a second power supply circuit 12b. The first power supply circuit 12a supplies power to the USB-Type-C interface 60b, USB-Type-A interfaces 60c and 60d, and USB-Type-B interface 60e. Alternatively, the first power supply circuit 12a may also be configured to supply power to the USB hub 53. Furthermore, the first power supply circuit 12a may also be configured not to supply power to the USB-Type-B interface 60e.

[0091] On the other hand, the second power supply circuit 12b supplies power to the USB-Type-C interface 60a. Alternatively, the second power supply circuit 12b may also be configured to supply power to the PD controller 54.

[0092] Reference Figure 5 The USB-Type-C interface 60a will be described. Figure 5 This is a block diagram of the USB controller 34 and the USB-Type-C interface 60a.

[0093] The USB controller 34 includes a device controller 341, a host controller 342, and a DRP (Dual Role Port) controller 343. The USB-Type-C interface 60a is controlled by the DRP controller 343 and the PD controller 54 of the USB controller 34 via the system bus 41.

[0094] The USB-Type-C interface 60a features a VBUS terminal 61a, a D+ / D- terminal 62a, and a CC (Configuration Channel) terminal 63a.

[0095] The DRP controller 343 performs control related to sending and receiving data from the external device 10a connected to the USB-Type-C interface 60a. The DRP controller 343 also performs data transmission control for sending data, such as printing-related commands, to the CPU 31 via the system bus 41.

[0096] The DRP controller 343 mediates the communication between the USB controller 34 and the USB interface 60 via, for example, synchronous serial communication. Synchronous serial communication can be, for example, I2C (Inter-Integrated Circuit) communication.

[0097] The PD controller 54 can maintain setting information indicating the amount of power that the printing apparatus 2 can supply. The PD controller 54 can use a regulator (not shown) to perform boost or buck processing on the power supplied from the second power circuit 12b according to this power distribution setting information. Thus, the printing apparatus 2 can supply the desired voltage to the external device 10a via the VBUS terminal 61a.

[0098] The VBUS terminal 61a is a so-called power input / output terminal. The VBUS terminal 61a is a terminal for transmitting and receiving power between the printing device 2 and the external device 10a. Therefore, power can be received between the printing device 2 and the external device 10a.

[0099] The D+ / D- terminal 62a is a so-called data transceiver terminal. The D+ / D- terminal 62a is a terminal for transmitting and receiving data signals with the external device 10a. Therefore, data signals can be transmitted and received between the printing apparatus 2 and the external device 10a.

[0100] The CC terminal 63a is a so-called status identification terminal. The CC terminal 63a identifies whether the D+ / D- terminal 62a is in a state where it can receive data signals from the external device 10a or send data signals to the external device 10a. For example, the CC terminal 63a identifies whether the VBUS terminal 61a is in a state where it can receive power from the external device 10a or supply power to the external device 10a. Therefore, the USB controller 34 can identify the status of the external device 10a.

[0101] The power delivery in the USB-Type-C interface 60a is a standard defined by USBPowerDelivery. Hereinafter, USBPowerDelivery will be abbreviated as USB PD. Furthermore, the second power supply circuit 12b can supply power to the USB-Type-C interface 60a corresponding to the USB PD standard. For example, the second power supply circuit 12b generates voltages different from 5V, 9V, and 12V, supplying multiple different voltages to the external device 10a. Moreover, the second power supply circuit 12b can be configured to supply a fixed current regardless of the voltage supplied to the external device 10a, or it can be configured to supply different currents depending on the supplied voltage.

[0102] Before USB PD begins, the USB-Type-C interface 60a transmits information related to the supply or receipt of power, orientation, and function between the printed device 2 and the external device 10a. In USB PD, the supply or receipt of power can be performed according to the agreement between the connected devices.

[0103] The port that supplies power is the power source, and the port that receives power is the power sink. The device that functions as the power source is the provider, and the device that functions as the power sink is the consumer. The USB-Type-C interface 60a can change the supplied power according to the situation, thus changing the power supply or reception. For example, when the printing device 2 is the power source, the external device 10a connected to the USB-Type-C interface 60a is the power sink. Conversely, when the printing device 2 is the power sink, the external device 10a connected to the USB-Type-C interface 60a is the power source.

[0104] Next, an example of power delivery processing in the USB-Type-C interface 60a will be described. The source checks the ID of the USB-Type-C cable connected to the USB-Type-C interface 60a to confirm whether a current exceeding 3A can flow.

[0105] The source notifies the sink of the power distribution that corresponds to it. The sink requests the target power distribution from the power distribution that the source notifies it of, using a number. The source notifies the sink of the power distribution that corresponds to the requested power distribution. Then, the source sets the VBUS terminal 61a to ON and begins supplying power to the sink.

[0106] Next, refer to Figure 6 The USB-Type-C interface 60b is described below. Figure 6 This is a block diagram of the USB controller 34 and the USB-Type-C interface 60b.

[0107] The USB-Type-C interface 60b features a VBUS terminal 61b, a D+ / D- terminal 62b, and a CC terminal 63b.

[0108] The USB-Type-C interface 60b has the same configuration as the USB-Type-C interface 60a described above. However, unlike the USB-Type-C interface 60a, the USB-Type-C interface 60b receives power from the first power circuit 12a instead of the second power circuit 12b.

[0109] Like the USB-Type-C interface 60a, the USB-Type-C interface 60b also has a CC terminal 63b, thus enabling it to identify the status of the external device 10b connected to the USB-Type-C interface 60b. Therefore, the USB-Type-C interface 60b can identify the status of the external device 10b and perform power transfer or data transmission and reception.

[0110] However, unlike the USB-Type-C interface 60a, the USB-Type-C interface 60b receives power from the first power circuit 12a and is not controlled by the PD controller 54. Therefore, it cannot supply power corresponding to the USB PD standard to the external device 10b connected to the USB-Type-C interface 60b. Furthermore, the voltage that the first power circuit 12a can supply to the external device 10b via the USB-Type-C interface 60b is limited. For example, the first power circuit 12a generates a 5V voltage and supplies it to the external device 10b. Moreover, the first power circuit 12a can be configured to supply a certain current to the external device 10b, or it can be configured to supply a different current depending on the external device 10b connected to the USB-Type-C interface 60b. The power that the first power circuit 12a can supply is less than the power that the second power circuit 12b can supply.

[0111] Since the power supplied to the USB-Type-C interface 60b is less than that supplied to the USB-Type-C interface 60a, for example, when an external device corresponding to a certain USB PD is connected to the USB-Type-C interface 60b, the external device performs operations commensurate with the power supplied from the USB-Type-C interface 60b. Therefore, it is preferable that the external device 10b connected to the USB-Type-C interface 60b is a device that does not correspond to a USB PD.

[0112] Compared to the second power supply circuit 12b, which supplies power to the USB-Type-C interface 60a corresponding to the USB PD standard, the first power supply circuit 12a has the advantages of low power consumption and low heat generation. Considering the power consumption or functionality of external devices that may be connected to the printing device 2, it is preferable that at least one of the first power supply circuit 12a and the second power supply circuit 12b corresponds to USB PD.

[0113] In other words, it is preferred that at least one of the USB-Type-C connectors 320a and 320b corresponds to the USB PD. When multiple connectors correspond to USB-Type-C are available, it is preferred that at least one of these multiple connectors corresponds to the USB PD.

[0114] Furthermore, it is preferable that at least one of the first power supply circuit 12a and the second power supply circuit 12b does not correspond to the USB PD. It is also preferable that at least one of the USB-Type-C connectors 320a and 320b does not correspond to the USB PD. For example, the first power supply circuit 12a, which does not correspond to the USB PD, may also supply power to the USB-Type-C connector 320b and the USB-Type-A connectors 320c and 320d.

[0115] In this configuration, since the first power supply circuit 12a, which is not compatible with USB PD, supplies power to various connector sockets, the power supply circuits supplying power to connector sockets not compatible with USB PD can be shared. Therefore, it is not necessary to add... Figure 17 The power supply circuit mounted in the substrate 300 shown simplifies the structure of the substrate 300. Furthermore, by simplifying the structure of the substrate 300, the heat generated in the substrate 300 is reduced.

[0116] For example, when checking out based on the goods or services purchased by the customer, the salesperson can operate external device 10a, and the customer can operate external device 10b. Generally, the customer requires fewer operations, such as choosing a payment method, than the salesperson; therefore, it is preferable for the customer to operate the external device, which has simpler functions than the salesperson. In other words, it is preferable for the customer to operate external device 10b, and for the salesperson to operate external device 10a, which consumes more power than external device 10b.

[0117] Next, refer to Figure 7 The USB-Type-A interface 60c is described below. Figure 7 This is a block diagram of the USB controller 34 and the USB-Type-A interface 60c.

[0118] The USB-Type-A interface 60c has a VBUS terminal 61c and a D+ / D- terminal 62c. Unlike the USB-Type-C interfaces 60a and 60b mentioned above, the CC terminals 63a and 63b are omitted. Therefore, the USB-Type-A interface 60c does not have the function of identifying the status of the connected external device 10c.

[0119] The USB-Type-A interface 60c receives power from the first power circuit 12a and supplies power to the external device 10c via the VBUS terminal 61c. For example, the voltage supplied to the USB-Type-A interface 60c via the first power circuit 12a is 5V. Additionally, the USB-Type-A interface 60c sends signals to the external device 10c via the D+ / D- terminal 62c.

[0120] The USB hub 53, which is electrically connected to the USB-Type-A interface 60c, is controlled by the host controller 342 of the USB controller 34 via the system bus 41. In other words, the USB-Type-A interface 60c is controlled by the host controller 342.

[0121] also, Figure 8 The USB-Type-A interface 60d shown is... Figure 7 The USB-Type-A interface 60c shown has the same structure, so the description is omitted.

[0122] Next, refer to Figure 9 The USB-Type-B interface 60e is explained. Figure 9 This is a block diagram of the USB controller 34 and the USB-Type-B interface 60e.

[0123] The USB-Type-B interface 60e has a VBUS terminal 61e and a D+ / D- terminal 62e. Unlike the USB-Type-C interfaces 60a and 60b mentioned above, the CC terminals 63a and 63b are omitted. Therefore, the USB-Type-B interface 60e does not have the function of recognizing the status of the connected external device 10e.

[0124] The USB-Type-B interface 60e receives power from the first power circuit 12a and supplies power to the external device 10e via the VBUS terminal 61e. For example, the voltage supplied to the USB-Type-B interface 60e via the first power circuit 12a is 5V. Additionally, the USB-Type-B interface 60e sends signals to the external device 10e via the D+ / D- terminal 62e.

[0125] The USB-Type-B interface 60e is controlled by the device controller 341 of the USB controller 34 via the system bus 41.

[0126] In other words, unlike the USB-Type-A interfaces 60c and 60d, the USB-Type-B interface 60e is controlled from the USB controller 34 without being connected to the USB hub 53. Alternatively, the USB-Type-B interface 60e can also be configured to be controlled from the USB controller 34 via the USB hub 53.

[0127] 1-4. Printing apparatus

[0128] Reference Figures 10 to 12 The general structure of printing apparatus 2 will be described.

[0129] exist Figures 10 to 12 In this configuration, the +X direction is set as the front direction of the printing device 2, the -X direction is set as the rear direction of the printing device 2, the +Y direction is set as the right direction of the printing device 2, the -Y direction is set as the left direction of the printing device 2, the +Z direction is set as the upward direction of the printing device 2, and the -Z direction is set as the downward direction of the printing device 2.

[0130] Printing device 2 is, for example, a thermal printer. Figure 10 As shown, the printing device 2 has a main body housing 200 that is generally rectangular in shape, except for the protrusions and recesses such as buttons. Figure 12As shown, the bottom cover 241 and the back cover 246 of the printing device 2 are detachable, and the main frame 208 is covered by the bottom cover 241 and the back cover 246.

[0131] The interior of the main body shell 200 is provided with Figure 2 The printing section 20, the media storage section 210 for storing the media P, and the connector section 220 are shown. When the opening and closing door 203 is closed, the printed media P is discharged from the media discharge port 13 through the transport path formed between the opening and closing door 203 and the main housing 200.

[0132] The opening and closing door 203 forms the first housing surface 200a of the main housing 200 and is closably connected to the rear of the main housing 200. Figure 10 In this design, the first housing surface 200a is the front surface of the main housing 200. For example, a conveyor roller is provided at the front end of the opening / closing door 203. When the opening / closing door 203 is closed, the conveyor roller and the thermal printhead 21 are positioned opposite each other. When the opening / closing door 203 is closed, the medium P is held between the conveyor roller and the thermal printhead 21. The medium P is conveyed by the rotation of the conveyor roller, and printing is performed on the printing surface of the medium P by the thermal printhead 21. A display unit 11, a media outlet 13, a power switch 201, an opening / closing lever 202, and a feed switch 204 are provided on the first housing surface 200a of the main housing 200. In other words, the display unit 11, the media outlet 13, the power switch 201, the opening / closing lever 202, and the feed switch 204 are disposed on the first housing surface 200a of the main housing 200.

[0133] Furthermore, the connector portion 220 is positioned opposite the third housing surface 200c of the main housing 200, and is disposed in the surrounding portion 215 formed between the third housing surface 200c and the first main frame surface 205. Figure 10 In this configuration, the third housing surface 200c is the bottom surface of the main housing 200. As described later, the connector section 220 includes a substrate 300 provided with various socket connectors. The substrate 300 is parallel to the third housing surface 200c of the main housing 200. For example, the substrate 300 is connected to a main substrate housed inside the main housing 200 and is arranged in a manner parallel to the third housing surface 200c of the main housing 200.

[0134] Power switch 201 is a switch used to connect or disconnect the power supply to the printing apparatus 2. For example... Figure 1 As shown, the printing device 2 is connected to a commercial AC power source via a power cable 5 and is supplied with electricity. When powered on, the printing device 2 performs printing on the medium P and communication with external devices such as the smart device 3a.

[0135] The opening / closing lever 202 is used to open and close the opening / closing door 203. The user operates the opening / closing lever 202 to open the opening / closing door 203 and store the thermal paper roll 26, which is the medium P, into the medium storage section 210 provided in the main body housing 200. The opening / closing door 203 closes the medium storage section 210 from above.

[0136] The feed switch 204 is a switch used to feed the thermal paper roll 26, which is the medium P, stored in the medium storage section 210. Specifically, the user can operate the feed switch 204 to feed the thermal paper roll 26 to the desired position. For example, the paper roll can be fed while the user is pressing the feed switch 204, and the feeding of the paper roll can be stopped when the user is not pressing the feed switch 204.

[0137] The display unit 11 may display information related to the communication status, such as information urging the replenishment of the medium P. Furthermore, the display unit 11 serves to inform the user of the status of the printing apparatus 2; therefore, it is preferable that the display unit 11 be located in a position easily visible to the user. For example, when the printing apparatus 2 is configured such that the second housing surface 200b of the main housing 200 is the front surface, the user can easily visually confirm the display unit 11 and the medium outlet 13.

[0138] The media outlet 13 discharges media P, for example, printed with text or images according to printing data. As described above, for example, when the user is positioned in front of the printing device 2 and the printing device 2 is configured with the second housing surface 200b of the main housing 200 as the front surface, the printing surface of the media P faces the user. Therefore, the user can observe the media P being discharged from the media outlet 13 while confirming the content printed on the media P. Thus, the user can confirm the printed content without waiting for the media P to be completely discharged from the media outlet 13.

[0139] Therefore, it is preferable that the media outlet 13 and the display unit 11 are both located in a position easily visible to the user. Furthermore, it is more preferable that the media outlet 13 is located near the display unit 11 so that the user can simultaneously view both the media outlet 13 and the display unit 11. Specifically, it is preferable that the media outlet 13 and the display unit 11 are arranged side-by-side on the first housing surface 200a of the main housing 200, and the length direction of the media outlet 13 and the display unit 11 is the Y direction, which is the width direction of the main housing 200.

[0140] like Figure 11As shown, the bottom cover 241 of the third housing surface 200c constituting the main housing 200 is detachable and covers the surrounding portion 215. The bottom cover 241 has a generally rectangular shape. The bottom cover 241 has multiple elastic members 251 that serve as the feet of the printing device 2. In addition, the bottom cover 241 has multiple holes 252. The holes 252 drain water droplets that have entered the main housing 200 to the outside of the main housing 200. Furthermore, the printing device 2 can be used not only on a table or floor, but also mounted on a wall. In this case, the holes 252 engage with a wall-mounting member (not shown) to hang the printing device 2 on the wall. Thus, the printing device 2 can be used in a so-called wall-mounted state, allowing for wider use on tables or floors.

[0141] like Figure 11 As shown, the back cover 246 of the fourth housing surface 200d constituting the main housing 200 can be detached and installed, and covers the second main frame surface 206. Figure 10 In this case, the fourth housing surface 200d is the back side of the main housing 200. The back cover 246 has a generally rectangular shape. The back cover 246 covers the main frame 208 from the back. The back cover 246 has cable outlets 255 for leading out various cables connecting the printing device 2 to various external devices.

[0142] like Figure 12 As shown, the fifth housing surface 200e and the sixth housing surface 200f of the main housing 200 are provided with first mounting portions 271 for mounting the bottom cover 241. Figure 10 In this configuration, the fifth housing surface 200e is the left side surface of the main housing 200, and the sixth housing surface 200f is the right side surface of the main housing 200. Similarly, the fifth housing surface 200e and the sixth housing surface 200f of the main housing 200 are provided with second mounting portions 276 for mounting the back cover 246.

[0143] The first mounting portion 271 is formed at the lower end of the fifth housing surface 200e and the sixth housing surface 200f of the main housing 200. The first mounting portion 271 is provided with a housing-side engaging portion 272. By engaging the housing-side engaging portion 272 with the cover-side engaging portion 242 provided on the bottom cover 241, the bottom cover 241 is mounted on the main housing 200.

[0144] The second mounting portion 276 is formed at the rear end of the fifth housing surface 200e and the sixth housing surface 200f of the main housing 200. The second mounting portion 276 is provided with a housing-side engaging portion 277. By engaging the housing-side engaging portion 277 with the cover-side engaging portion 247 provided on the back cover 246, the back cover 246 is mounted to the main housing 200.

[0145] Furthermore, circular cutouts 261 and 262 are provided at the corner where the first mounting portion 271 and the second mounting portion 276 intersect on the fifth housing surface 200e and the sixth housing surface 200f of the main housing 200. Additionally, the cutouts 261 and 262 communicate with the surrounding portion 215.

[0146] Furthermore, the surrounding portion 215 is the space between the third housing surface 200c of the main body housing 200 and the first main body frame surface 205, and is further defined by the fourth housing surface 200d, the fifth housing surface 200e, the sixth housing surface 200f of the main body housing 200 and the connector portion 220.

[0147] In addition, the surrounding part 215 refers to Figures 10 to 12 The X, Y, and Z directions are defined as shown. The X direction is defined between the first connector surface 221 and the second connector surface 222 of the connector section 220 from the back cover 246, the Y direction is defined between the fifth housing surface 200e and the sixth housing surface 200f of the main body housing 200, and the Z direction is defined between the bottom cover 241 and the first main body frame surface 205. The first connector surface 221 or the second connector surface 222 is a flat surface, such as a metal plate. However, the flat surface is not limited to a metal plate or other metal plate, but may also be a flat surface made of resin or the like.

[0148] Various cables connected to the connector section 220 are wrapped around the surrounding section 215. Furthermore, various cables connected to the connector section 220 are led out to the outside of the main body housing 200 through cutouts 261, 262 or cable outlets 255 provided on the back cover 246.

[0149] Furthermore, the printing apparatus 2 can be configured in either a first orientation where the media outlet 13 of the media P faces upward, or a second orientation where the media outlet 13 of the media P faces forward. That is, in the first orientation, the printed media P is discharged from the media outlet 13 in the +Z direction, and in the second orientation, the printed media P is discharged from the media outlet 13 in the +X direction. Additionally, in the first orientation, the first housing surface 200a becomes the upper surface of the main housing 200, and in the second orientation, the first housing surface 200a becomes the front surface of the main housing 200.

[0150] Specifically, in the first orientation, the connector portion 220 is covered by the bottom cover 241, while in the second orientation, the connector portion 220 is covered by the back cover 246.

[0151] In either the first or second orientation, multiple elastic members 251, which serve as the feet of the printing apparatus 2, are disposed on the bottom surface of the printing apparatus 2, thus ensuring stable mounting of the printing apparatus 2. Furthermore, since the multiple elastic members 251 are not disposed on the back side of the printing apparatus 2, the appearance of the printing apparatus 2 is not compromised. Alternatively, a simpler configuration can be adopted, where only one of the bottom cover 241 and the back cover 246 covering the connector portion 220 is detachable, while the other cover is integrally formed with the main housing 200. In this case, in the first orientation, the cover covering the connector portion 220 becomes the bottom surface, and in the second orientation, the cover covering the connector portion 220 becomes the back surface.

[0152] like Figure 12 As shown, the connector portion 220 has a first connector surface 221 and a second connector surface 222. The connector portion 220, including the first connector surface 221 and the second connector surface 222, is formed of a flat plate, and the outer and inner surfaces of the first connector surface 221 and the second connector surface 222 are formed as planes. Here, unless otherwise specified, the flat plate is a metal plate.

[0153] The first connector surface 221 has openings 220a, 220b, 220c and 220d, and the second connector surface 222 has openings 220e, 220f and 220g.

[0154] like Figure 13 As shown, openings corresponding to the USB-Type-C connectors 320a and 320b, USB-Type-A connectors 320c and 320d, USB-Type-B connector 320e, power connector 320f, and DK (Drawer Kick) connector 320g mounted on the mounting surface 301 of the substrate 300 are formed on the first connector surface 221 and the second connector surface 222. Furthermore, the opening 220g can also correspond to a LAN (Local Area Network) connector.

[0155] The USB-Type-C connector 320a is electrically connected to the external device 10a, enabling communication between the external device 10a and the control unit 30. Furthermore, the USB-Type-C connector 320a is mounted on the substrate 300 such that the outer periphery of its insertion port aligns with the inner periphery of the opening 220a. This reduces the possibility of foreign objects such as trash or insects entering the connector portion 220. Additionally, the insertion port of the USB-Type-C connector 320a is positioned along the first connector surface 221.

[0156] The USB-Type-C connector 320b is electrically connected to the external device 10b, enabling communication between the external device 10b and the control unit 30. Furthermore, the USB-Type-C connector 320b is disposed on the substrate 300, and is mounted on the substrate 300 such that the outer periphery of its insertion port aligns with the inner periphery of the opening 220b. This reduces the possibility of foreign objects such as trash or insects entering the interior of the connector portion 220. Additionally, the insertion port of the USB-Type-C connector 320b is positioned along the first connector surface 221. Moreover, the USB-Type-C connector 320b and the USB-Type-C connector 320a are arranged adjacent to each other.

[0157] USB Type-C connectors 320a and 320b have CC terminals. Unlike other USB standards, the host and slave roles are not explicitly defined between the printed device 2 and the external devices 10a and 10b connected to it. That is, the printed device 2 both receives commands from and sends commands to the external devices 10a and 10b to perform actions. For example, the printed device 2 may sometimes supply power to the external devices 10a and 10b. Thus, in the USB Type-C standard, the printed device 2 can potentially function as either a host or a slave. Therefore, by having multiple USB Type-C connectors 320a and 320b, the printed device 2 can also function as both a host and a slave simultaneously, thereby improving convenience for users.

[0158] The USB-Type-A connector 320c is electrically connected to the external device 10c, enabling communication between the external device 10c and the control unit 30. Furthermore, the USB-Type-A connector 320c is mounted on the substrate 300 such that the outer periphery of its insertion port aligns with the inner periphery of the opening 220c. This reduces the possibility of foreign objects such as debris or insects entering the connector portion 220. Additionally, the insertion port of the USB-Type-A connector 320c is positioned along the first connector surface 221.

[0159] The USB-Type-A connector 320d is electrically connected to the external device 10d, enabling communication between the external device 10d and the control unit 30. Furthermore, the USB-Type-A connector 320d is mounted on the substrate 300 such that the outer periphery of its insertion port aligns with the inner periphery of the opening 220d. This reduces the possibility of foreign objects such as debris or insects entering the connector portion 220. Additionally, the insertion port of the USB-Type-A connector 320d is positioned along the first connector surface 221.

[0160] The USB-Type-B connector 320e is electrically connected to the external device 10e, enabling communication between the external device 10e and the control unit 30. Furthermore, the USB-Type-B connector 320e is mounted on the substrate 300 such that the outer periphery of its insertion port aligns with the inner periphery of the opening 220e. This reduces the possibility of foreign objects such as debris or insects entering the connector portion 220. Additionally, the insertion port of the USB-Type-B connector 320e is configured along a second connector surface 222 that differs from the first connector surface 221.

[0161] Power connector 320f connects to a commercial AC power source (not shown) to supply power to the control unit 30. Furthermore, power connector 320f is mounted on substrate 300 such that the outer periphery of its insertion port aligns with the inner periphery of the opening 220f. This reduces the possibility of foreign objects such as debris or insects entering the interior of connector portion 220. Additionally, the insertion port of power connector 320f is positioned along a second connector surface 222 that differs from the first connector surface 221.

[0162] The DK connector 320g is electrically connected to the cash drawer 270, enabling communication between the cash drawer 270 and the control unit 30. Furthermore, the DK connector 320g is mounted on the substrate 300 such that the outer periphery of its insertion port aligns with the inner periphery of the opening 220g. This reduces the possibility of foreign objects such as trash or insects entering the connector portion 220. Additionally, the insertion port of the DK connector 320g is positioned along a second connector surface 222 that differs from the first connector surface 221.

[0163] The inner peripheries of openings 220a, 220b, 220c, 220d, 220e, 220f, and 220g are designed to match the outer peripheries of USB-Type-C connectors 320a and 320b, USB-Type-A connectors 320c and 320d, USB-Type-B connectors 320e, power connectors 320f, and DK connectors 320g, respectively. Therefore, the outer periphery of each insertion port matches the inner periphery of the opening. However, in the event of manufacturing errors, the inner periphery of each opening and the outer periphery of the corresponding connector may become approximately the same. Since this is not a design error, the aforementioned approximate consistency is included within the overall consistency description.

[0164] The opening 220a formed on the first connector surface 221 corresponds to the USB-Type-C connector 320a, the opening 220b formed on the first connector surface 221 corresponds to the USB-Type-C connector 320b, the opening 220c formed on the first connector surface 221 corresponds to the USB-Type-A connector 320c, and the opening 220d formed on the first connector surface 221 corresponds to the USB-Type-A connector 320d.

[0165] The opening 220e formed on the second connector surface 222 corresponds to the USB-Type-B jack connector 320e, the opening 220f formed on the second connector surface 222 corresponds to the power connector 320f, and the opening 220g formed on the second connector surface 222 corresponds to the DK jack connector 320g.

[0166] Furthermore, the connector portion 220 is disposed within the first main frame surface 205, which is located inside the third housing surface 200c constituting the bottom surface of the main housing 200. On the other hand, the media outlet 13 is disposed on the first housing surface 200a constituting the upper surface of the main housing 200. Thus, since the connector portion 220 is disposed inside the bottom cover 241, which is located opposite to the upper surface of the main housing 200 where the media outlet 13 is disposed, the user cannot simultaneously visually confirm the media P discharged upward from the media receiving portion of the main housing 200 and the connector portion 220. In other words, the user cannot simultaneously visually confirm the media outlet 13 and the connector portion 220.

[0167] That is, while the user can visually confirm the media outlet 13, they cannot visually confirm the USB-Type-C connectors 320a and 320b, the USB-Type-A connectors 320c and 320d, the USB-Type-B connector 320e, the power connector 320f, and the DK connector 320g. In other words, the user cannot simultaneously visually confirm the media outlet 13, the first connector surface 221, and the second connector surface 222.

[0168] Furthermore, when the printing device 2 is in normal use, the first main body frame surface 205 is mostly covered by the bottom cover 241, and the connector portion 220 is not exposed to the outside, so the user cannot visually confirm the connector portion 220. However, when the bottom cover 241 is detached from the main body housing 200, the connector portion 220 is exposed to the outside, and the user can visually confirm the connector portion 220.

[0169] 1-5. Countermeasures for Accidental Insertion

[0170] For example, when the user uses Figure 18 When the USB-Type-C cable 400a is connected to the external device 10a of the printing device 2, the user removes the bottom cover 241, visually confirms the first connector surface 221 and the second connector surface 222, and inserts the plug 401a of the USB-Type-C cable 400a into the opening 220a of the first connector surface 221, thereby connecting the printing device 2 to the external device 10a.

[0171] Specifically, after the user positions the printing device 2 in a second posture, with the first housing surface 200a as the front surface of the main housing 200, the user rotates the printing device 2 so that the third housing surface 200c faces the user. Furthermore, the user removes the cover of the printing device 2, exposing the connector portion 220 and connecting the USB-Type-C cable 400a to the printing device 2. In this situation, the connector portion 220 is positioned opposite the surrounding portion 215, making it difficult for the user to visually confirm the opening 220a of the first connector surface 221 from a direction perpendicular to the user's line of sight. Therefore, the user may insert the cable into another opening, resulting in accidental insertion.

[0172] Additionally, sometimes the user also applies the printing device 2 with the second housing surface 200b facing the user. Figure 18 The USB-Type-C cable 400b shown is connected to the connector section 220. This situation can be considered, for example, when using the printing device 2 after the setup or initial setting is completed, and other external devices 10b need to be reconnected.

[0173] In this situation, the second housing surface 200b of the printing device 2 faces the user, and the user cannot visually confirm the first connector surface 221 and the second connector surface 222. Therefore, the user confirms the position of each connector by touching the first connector surface 221 and the second connector surface 222 with their hands. In other words, the user does not visually inspect the connector section 220, but rather connects each cable to the connector section 220 by touch. Therefore, the user may insert the cable into other openings, causing misinsertion.

[0174] The connector section 220 has a first connector surface 221 that is parallel to each other and a second connector surface 222 that is different from the first connector surface 221. Therefore, even if it is difficult for the user to visually confirm or to touch it, the user can recognize the first connector surface 221 and the second connector surface 222 as different surfaces.

[0175] Figure 13 This is a top view of the first connector surface 221 and the second connector surface 222 of the connector section 220. (Refer to...) Figure 13 The document explains the possible misinsertion that may occur when connecting each cable to the connector section 220 in a state where it is difficult for the user to visually confirm or to feel for the cable, and the corresponding countermeasures.

[0176] The plugs 401a and 401b of the USB-Type-C cables 400a and 400b can be inserted into the USB-Type-C jack connectors 320a and 320b, thereby enabling the printing device 2 to communicate with the external devices 10a and 10b.

[0177] Furthermore, although the plugs 401a and 401b of the USB-Type-C cables 400a and 400b can be inserted into the USB-Type-A connectors 320c and 320d, the printed device 2 cannot communicate with the external devices 10a and 10b. That is, although the shapes of the plugs 401a and 401b of the USB-Type-C cables 400a and 400b are different from those of the USB-Type-A connectors 320c and 320d, the printed device 2 can still physically connect to the external devices 10a and 10b using the USB-Type-C cables 400a and 400b. However, the printed device 2 is not connected to the external devices 10a and 10b in a communicative manner.

[0178] Additionally, the plugs 401a and 401b of the USB-Type-C cables 400a and 400b can be inserted into the USB-Type-B connector 320e, but the printed device 2 cannot communicate with the external device 10a or 10b. That is, the printed device 2 can physically connect to the external device 10a or 10b using the USB-Type-C cables 400a and 400b, but they are not connected in a communicative manner.

[0179] The state described above, where the plugs 401a and 401b of USB-Type-C cables 400a and 400b are physically connected and fixed, is considered as a state where the plugs are mistakenly inserted into connector section 220. Such mistaken insertion may occur, for example, in USB-Type-A connectors 320c and 320d, USB-Type-B connector 320e, and DK connector 320g.

[0180] If misinsertion occurs, it may cause the physically connected external device to malfunction, fail, or be damaged. Similarly, the printing device 2, which is physically connected to these external devices, may also malfunction, fail, or be damaged. Furthermore, since the connectors of the USB-Type-C cables 400a and 400b may be damaged if the plugs 401a and 401b are misinserted, the countermeasures described later are implemented.

[0181] Furthermore, it is believed that such misinsertion is more likely to occur in connectors with larger insertion ports than those of the USB-Type-C connectors 320a and 320b. Additionally, while it also depends on the shape of the connector's insertion port, a larger insertion port generally increases the likelihood of misinsertion.

[0182] The USB-Type-B connector 320e has a smaller insertion port than the DK connector 320g. Additionally, the USB-Type-A connectors 320c and 320d have smaller insertion ports than the DK connector 320g.

[0183] In other words, since the insertion port of the USB-Type-B connector 320e is smaller than that of the DK connector 320g, the possibility of accidentally inserting the USB-Type-B connector 320e is relatively smaller than that of the DK connector 320g.

[0184] In addition, since the insertion ports of USB-Type-A connectors 320c and 320d are smaller than those of DK connectors 320g and USB-Type-B connectors 320e, the possibility of accidentally inserting USB-Type-A connectors 320c and 320d is relatively smaller than that of DK connectors 320g and USB-Type-B connectors 320e.

[0185] A USB-Type-B connector 320e is configured between the USB-Type-C connectors 320a and 320b and the DK connector 320g.

[0186] The USB-Type-B connector 320e is less likely to be mis-inserted than the DK connector 320g. Therefore, by placing the USB-Type-B connector 320e, which is less likely to be mis-inserted, between the USB-Type-C connectors 320a and 320b and the DK connector 320g, the likelihood of mis-insertion of the DK connector 320g is reduced.

[0187] Additionally, USB-Type-A connectors 320c and 320d are configured between the USB-Type-C connectors 320a and 320b and the DK connector 320g.

[0188] The USB-Type-A connectors 320c and 320d are less likely to be mis-inserted than the DK connector 320g. Therefore, by placing the USB-Type-A connectors 320c and 320d, which are less likely to be mis-inserted, between the USB-Type-C connectors 320a and 320b and the DK connector 320g, the likelihood of mis-insertion of the DK connector 320g is reduced.

[0189] Additionally, USB-Type-A connectors 320c and 320d are configured between USB-Type-C connectors 320a and 320b and USB-Type-B connector 320e.

[0190] The USB-Type-A connectors 320c and 320d are less likely to be mis-inserted than the USB-Type-B connector 320e. Therefore, by placing the USB-Type-A connectors 320c and 320d, which are less likely to be mis-inserted, between the USB-Type-C connectors 320a and 320b and the USB-Type-B connector 320e, the likelihood of mis-insertion of the USB-Type-B connector 320e is reduced.

[0191] In other words, by configuring a less likely mis-insertion connector between the USB-Type-C jack connectors 320a and 320b and the jack connectors 401a and 401b of the plugs of the USB-Type-C cables 400a and 400b that may be mis-inserted, the possibility of users mis-inserting the plugs 401a and 401b of the USB-Type-C cables 400a and 400b can be reduced.

[0192] Furthermore, it is preferable to configure a power connector 320f that cannot be mistakenly inserted between the USB-Type-C jack connectors 320a and 320b and the jack connectors of the plugs 401a and 401b that may be mistakenly inserted into the USB-Type-C cables 400a and 400b.

[0193] Furthermore, the long side X of the insertion port of USB-Type-C connectors 320a and 320b has a different direction than the long side Y of the insertion port of USB-Type-A connectors 320c and 320d. In other words, the extension direction of the long side X of USB-Type-C connectors 320a and 320b is different from the extension direction of the long side Y of USB-Type-A connectors 320c and 320d. If the extension direction of the long side X of USB-Type-C connectors 320a and 320b is the same as the extension direction of the long side Y of USB-Type-A connectors 320c and 320d, then since the long side Y is longer than the long side X and the short side y is longer than the short side x, it would be possible to insert the plugs 401a and 401b of USB-Type-C cables 400a and 400b into USB-Type-A connectors 320c and 320d, increasing the possibility of incorrect insertion. Furthermore, the long side X of the insertion port forming the USB-Type-C connector 320a and 320b is a side that extends in a direction parallel to the mounting surface 301 of the substrate 300, and the short side x is an arc-shaped side that extends in a direction intersecting the long side X.

[0194] Because the extension direction of the long side X of the USB-Type-C connectors 320a and 320b is different from the extension direction of the long side Y of the USB-Type-A connectors 320c and 320d, the possibility of misinsertion is reduced. However, since there is a possibility of increasing the size of the connector section 220, it is best to arrange the short side Y of the USB-Type-A connectors 320c and 320d on the mounting surface 301 of the substrate 300, so that the extension direction of the long side X of the USB-Type-C connectors 320a and 320b is orthogonal to the extension direction of the long side Y of the USB-Type-A connectors 320c and 320d. Alternatively, the extension direction of the long side X of the USB-Type-C connectors 320a and 320b may intersect with the extension direction of the long side Y of the USB-Type-A connectors 320c and 320d.

[0195] In other words, it is best to ensure that the extension direction of the short side x of the USB-Type-C connectors 320a and 320b is orthogonal to or intersects with the extension direction of the short side y of the USB-Type-A connectors 320c and 320d. This significantly reduces the possibility of misinsertion.

[0196] Furthermore, the shorter side y of the USB-Type-A connectors 320c and 320d is shorter than the longer side X of the USB-Type-C connectors 320a and 320b. Therefore, when the plugs 401a and 401b of the USB-Type-C cables 400a and 400b can be inserted into the USB-Type-C connectors 320a and 320b at an angle that is parallel to the long side of the plugs 401a and 401a, the possibility of mistakenly inserting the USB-Type-A connectors 320c and 320d is extremely small.

[0197] Furthermore, the USB-Type-C connectors 320a and 320b are mounted on the substrate 300 with their long side X contacting the mounting surface 301. Compared to when they are mounted on the substrate 300 with their short side X contacting the mounting surface 301, the contact area between the USB-Type-C connectors 320a and 320b and the mounting surface 301 of the substrate 300 is larger. Therefore, the USB-Type-C connectors 320a and 320b are securely fixed to the substrate 300. Consequently, the strength of the USB-Type-C connectors 320a and 320b relative to the locking mechanism is improved.

[0198] exist Figure 13In the connector section 220 shown, the USB-Type-C connectors 320a and 320b are configured in a so-called horizontal manner relative to the mounting surface 301, and the USB-Type-A connectors 320c and 320d are configured in a so-called vertical manner relative to the mounting surface 301.

[0199] By arranging them horizontally, the USB-Type-C connectors 320a and 320b are securely fixed to the substrate 300 as described above. Furthermore, by arranging them vertically, the USB-Type-A connectors 320c and 320d, as described above, can have their respective connector spacing narrowed, thus enabling miniaturization of the connector section 220.

[0200] Conversely, the plugs 401c and 401d of USB-Type-A cables 400c and 400d, or the plug 401e of USB-Type-B cable 400e, are larger than the insertion openings of USB-Type-C connectors 320a and 320b. Therefore, the plugs 401c and 401d of USB-Type-A cables 400c and 400d, or the plug 401e of USB-Type-B cable 400e, cannot be physically inserted into USB-Type-C connectors 320a and 320b.

[0201] In view of this, such as Figure 13 As shown, among the multiple connectors in the connector section 220, the USB-Type-C connectors 320a and 320b with smaller insertion openings are preferably positioned at end Z. In other words, by positioning the USB-Type-C connectors 320a and 320b, which correspond to the plugs 401a and 401b of the USB-Type-C cables 400a and 400b that could potentially be mistakenly inserted into other connectors, at end Z of the first connector surface 221, the position of the USB-Type-C connectors 320a and 320b can be correctly identified even when the user cannot visually confirm or must feel for them, thus reducing the possibility of misinsertion. Furthermore, in this embodiment, end Z is the end in the -Y direction.

[0202] The power connector 320f has a circular insertion port, while the USB-Type-C connectors 320a and 320b, USB-Type-A connectors 320c and 320d, USB-Type-B connector 320e, and DK connector 320g are rectangular. Here, the power connector 320f is circular, while the other connectors have corners, hence the rectangular designation.

[0203] Because the insertion port of power connector 320f is circular, users can accurately identify its location even when it is difficult to visually confirm or to locate it by touch. Furthermore, the concave-convex shape of the insertion port of power connector 320f differs from that of other connector sockets, making it easy for users to recognize. In other words, even when it is difficult to visually confirm or to locate it by touch, users can accurately identify the location of power connector 320f, thus facilitating the identification of the positions of all connector sockets.

[0204] Furthermore, because the insertion port of the power connector 320f has a structure with multiple recesses for inserting the pins of the power cable 5, and these recesses are very small, individual cables cannot be inserted into the insertion port of the power connector 320f. Therefore, even if individual cables are incorrectly inserted into the position of the power connector 320f, the user can recognize the incorrect insertion because the cables cannot be inserted.

[0205] The first connector surface 221 does not have a circular connector, while the second connector surface 222 has a rectangular connector. The circular power connector 320f is located on the second connector surface 222 instead of the first connector surface 221. The rectangular USB-Type-C connectors 320a and 320b, and the USB-Type-A connectors 320c and 320d are located on the first connector surface 221. By placing the easily recognizable power connector 320f on the second connector surface 222, the first connector surface 221, where the USB-Type-C connectors 320a and 320b are located, is easily identifiable even when visually difficult to see or by touch. Therefore, the possibility of accidental insertion is reduced.

[0206] For example, when a power connector 320f is configured between the USB-Type-C jack connectors 320a and 320b and the DK jack connector 320g, the possibility of mistakenly inserting the DK jack connector 320g is reduced because the user can correctly identify the position of the power connector 320f.

[0207] Figure 14 and Figure 15 It is a 3D model of cash drawer 270. Figure 14 This is a 3D view of the cash drawer 270 with its drawer tray 273 closed. Figure 15 This is a 3D view of the cash drawer 270 with its drawer tray 273 open. Additionally, Figure 16 This is a 3D view of the Buzzer 280.

[0208] like Figure 14 and Figure 15As shown, the cash drawer 270 includes a drawer tray 273 and a drawer eject cable 275. The drawer tray 273 is installed in the cash drawer 270 in a way that allows it to be opened and closed. The drawer tray 273 holds cash, etc. Furthermore, the interior of the drawer tray 273 is divided by dividers 274a, 274b, 274c, 274d, and 274e. For example, the dividers 274a, 274b, 274c, 274d, and 274e can also be removable. In this case, the internal division of the drawer tray 273 can be changed.

[0209] The drawer pop-out cable 275 is connected to the DK socket connector 320g of the connector section 220. That is, the cash drawer 270 is electrically connected to the printing device 2 via the drawer pop-out cable 275, and the cash drawer 270 can communicate with the control section 30 of the printing device 2.

[0210] The cash drawer 270, connected to the printing device 2, is controlled by the printing device 2. The printing device 2 can control the opening, closing, and locking of the drawer tray 273. Alternatively, the user can close the drawer tray 273 and manually lock it by operating the keyhole 274.

[0211] Additionally, the DK socket connector 320g of the connector section 220 can connect to... Figure 16 The buzzer 280 shown is a volume control knob 281, a speaker 283, and a drawer pop-out cable 285.

[0212] The buzzer 280 is electrically connected to the printing apparatus 2 via a drawer pop-out cable 285, and can communicate with the control unit 30 of the printing apparatus 2. Thus, for example, when printing is in progress, a sound is emitted from the speaker 283 to notify the user that printing is in progress. The volume of the speaker 283 can be adjusted using a volume control knob 281. For example, the user can operate the volume control knob 281 to set an appropriate volume according to the surrounding environment. Furthermore, the buzzer 280 can also be set to play not only a buzzing sound but also a melody.

[0213] Alternatively, the DK jack connector 320g of connector section 220 can be replaced with a LAN jack connector. In this case, the LAN jack connector can be connected to a LAN cable, and the printed device 2 can be connected to network devices such as network hubs or routers. Furthermore, the DK jack connector 320g is an example of either a LAN or DK jack connector.

[0214] 1-6.Substrate

[0215] Reference Figure 17 The substrate 300 will be described below. Figure 17 This is a diagram showing substrate 300.

[0216] The substrate 300 includes USB-Type-C connectors 320a and 320b, USB-Type-A connectors 320c and 320d, USB-Type-B connectors 320e, power connectors 320f and 320g, a first power circuit 12a, a second power circuit 12b, a first locking component 331, and a second locking component 332.

[0217] In addition, the substrate 300 has a first side 311, a second side 312, and a third side 313 that face the inner surfaces of the first connector surface 221 and the second connector surface 222 of the connector portion 220. Specifically, the substrate 300 faces the inner surfaces of the first connector surface 221 and the second connector surface 222, and the inner surfaces of the first connector surface 221 and the second connector surface 222 are orthogonal to the substrate 300.

[0218] USB-Type-C connectors 320a and 320b are disposed along the first side 311 of the substrate 300.

[0219] In addition, the USB-Type-C connectors 320a and 320b can be connected to the plugs 401a and 401b of the USB-Type-C cables 400a and 400b through the openings 220a and 220b provided on the first connector surface 221 of the connector portion 220.

[0220] USB-Type-A connectors 320c and 320d are disposed along the second side 312 of the substrate 300.

[0221] In addition, the USB-Type-A jack connectors 320c and 320d can be connected to the plugs 401c and 401d of the USB-Type-A cables 400c and 400d through the openings 220c and 220d provided on the first connector surface 221 of the connector portion 220.

[0222] The USB-Type-B jack connector 320e is disposed along the third side 313 of the substrate 300.

[0223] In addition, the USB-Type-B jack connector 320e can be connected to the plug 401e of the USB-Type-B cable 400e through the opening 220e of the second connector surface 222 provided in the connector portion 220.

[0224] The power connector 320f is disposed along the third side 313 of the substrate 300. Furthermore, the power connector 320f can be connected to the power cable 5 via an opening 220f provided in the second connector surface 222 of the connector portion 220. In other words, the power connector 320f is a connector for supplying power to the control unit 30 of the printing apparatus 2.

[0225] The DK jack connector 320g is disposed along the third side 313 of the substrate 300. In addition, the DK jack connector 320g can be connected to the drawer eject cables 275 and 285 through the opening 220g provided in the second connector surface 222 of the connector portion 220.

[0226] The first power supply circuit 12a includes a first coil 121a and a first integrated circuit 122a. The first integrated circuit 122a includes, for example, a DC-DC converter, a resistive element, a switching element, and a transistor.

[0227] The first power supply circuit 12a converts the power supplied from the power connector 320f into appropriate power to supply power to the USB-Type-A connectors 320c and 320d, the USB-Type-B connector 320e, and the USB-Type-C connector 320b. In other words, the first coil 121a supplies a first power to the USB-Type-A connectors 320c and 320d, the USB-Type-B connector 320e, and the USB-Type-C connector 320b. This first power is, for example, a constant power supply and is 5V.

[0228] The second power supply circuit 12b includes a second coil 121b and a second integrated circuit 122b. The second integrated circuit 122b includes, for example, a DC-DC converter, a resistive element, a switching element, and a transistor.

[0229] The second power supply circuit 12b converts the power supplied from the power connector 320f into appropriate power to supply power to the USB-Type-C connector 320a. In other words, the second coil 121b supplies a second power, above the first power, to the USB-Type-C connector 320a. The second power is, for example, variable power, and is 5V, 9V, or 12V voltage.

[0230] As described above, the USB hub 53 operates between the USB controller 34 and the USB interface 60, and is disposed on the substrate 300 between the first power supply circuit 12a and the second power supply circuit 12b. That is, the USB hub 53 is disposed between the first coil 121a and the second coil 121b. Specifically, the USB hub 53 is disposed between the first power supply circuit 12a and the second power supply circuit 12b, where heat generation is significant. In other words, the USB hub 53 is disposed on the substrate 300 at a location where the heat generated by the first power supply circuit 12a and the second power supply circuit 12b is minimized.

[0231] Additionally, the USB hub 53 controls the USB-Type-C connector 320b and USB-Type-A connectors 320c and 320d according to the instructions of the USB controller 34. Furthermore, the USB hub 53 functions as a hub and relay device for the USB-Type-C connector 320b and USB-Type-A connectors 320c and 320d.

[0232] The first locking component 331 and the second locking component 332 are components used to fix the substrate 300 to the main frame 208 inside the main housing 200. The first locking component 331 and the second locking component 332 are engaged with the engaging portion of the main frame 208 (not shown) through holes 331a and 332a provided in the substrate 300. As a result, the connector portion 220 that houses the substrate 300 is fixed to the main frame 208. For example, the first locking component 331 and the second locking component 332 are metal screws, and the substrate 300 is fixed to the main frame 208 by the screws.

[0233] Furthermore, holes 331a and 332a are preferably located near the first coil 121a and the second coil 121b, respectively. The substrate 300, fixed to the main frame 208 by screws, dissipates heat to the main frame 208 via the screws serving as the first locking member 331 and the second locking member 332, and also dissipates heat from the screw heads of the screws serving as the first locking member 331 and the second locking member 332. Therefore, the first locking member 331 and the second locking member 332 are preferably screws with large screw heads. For example, compared to so-called countersunk screws, the first locking member 331 and the second locking member 332 are preferably round-head screws.

[0234] In the components mounted on the mounting surface 301 of the substrate 300, the first coil 121a and the second coil 121b generate a large amount of heat. Therefore, it is preferable to fix the substrate 300 to the main frame 208 with screws near the first coil 121a and the second coil 121b. In addition, since the substrate 300 is fixed to the metal main frame 208 by metal screws that serve as the first locking member 331 and the second locking member 332, it has the effect of eliminating static electricity carried on the substrate 300, and further, it also has the effect of fixing the potential of the substrate 300.

[0235] Reference Figure 17 The positional relationships of the components mounted on the substrate 300 are explained.

[0236] In this description, distances L1 to L7 are defined as follows. Unless otherwise specified, distances L1 to L7 refer to the shortest distance between components. Distance L1 is the distance from the first locking component 331 to the first coil 121a. Distance L2 is the distance from the first locking component 331 to the USB-Type-C connector 320b. Distance L3 is the distance from the second locking component 332 to the second coil 121b. Distance L4 is the distance from the second locking component 332 to the USB-Type-C connector 320a. Distance L5 is the distance from the first coil 121a to the USB-Type-C connector 320b. Distance L6 is the distance from the second coil 121b to the USB-Type-C connector 320a. Distance L7 is the distance from the first coil 121a to the second coil 121b.

[0237] The distance L1 from the first locking member 331 to the first coil 121a is shorter than the distance L2 from the first locking member 331 to the USB-Type-C connector 320b. The heat generated by the first coil 121a is greater than the heat generated by the USB-Type-C connector 320b. Therefore, by positioning the first coil 121a closer to the first locking member 331 than the USB-Type-C connector 320b, the heat dissipation effect of the substrate 300 is achieved.

[0238] The distance L3 from the second locking member 332 to the second coil 121b is shorter than the distance L4 from the second locking member 332 to the USB-Type-C connector 320a. The heat generated by the second coil 121b is greater than the heat generated by the USB-Type-C connector 320a. Therefore, by positioning the second coil 121b closer to the second locking member 332 than the USB-Type-C connector 320a, heat dissipation is achieved for the substrate 300.

[0239] The distance L1 is shorter than the distance L5 from the first coil 121a to the USB-Type-C connector 320b. Therefore, the first locking member 331 dissipates more heat generated in the closer-positioned first coil 121a compared to the heat generated in the USB-Type-C connector 320b. By placing the heat-generating first coil 121a near the first locking member 331, the heat dissipation efficiency of the substrate 300 is improved.

[0240] If the distance L5 is shorter than the distance L1, the heat generated by the first locking component 331 and the first coil 121a and the USB-Type-C connector 320b, which are heat sources, will be released, and the heat dissipation efficiency of the substrate 300 may deteriorate.

[0241] The distance L3 is shorter than the distance L6 from the second coil 121b to the USB-Type-C connector 320a. Therefore, the second locking member 332 dissipates more heat generated in the closer-positioned second coil 121b compared to the heat generated in the USB-Type-C connector 320a. By placing the heat-generating second coil 121b near the second locking member 332, the heat dissipation efficiency of the substrate 300 is improved.

[0242] If the distance L6 is shorter than the distance L3, the heat generated by the second coil 121b and the USB-Type-C connector 320a, which are heat sources, will be released by the second locking component 332, and the heat dissipation efficiency of the substrate 300 may deteriorate.

[0243] Furthermore, distance L6 is shorter than distance L5. As mentioned above, USB-Type-C connector 320a corresponds to USB PD, while USB-Type-C connector 320b does not correspond to USB PD. That is, the power consumption of the second power circuit 12b is greater than that of the first power circuit 12a. Therefore, it is preferable that the distance L6 from the second coil 121b included in the second power circuit 12b to the USB-Type-C connector 320a is shorter than the distance L5 from the first coil 121a included in the first power circuit 12a to the USB-Type-C connector 320b. When power is supplied from the second power circuit 12b to the USB-Type-C connector 320a, power loss from the second power circuit 12b is suppressed.

[0244] Furthermore, distance L4 is shorter than distance L2. As described above, since the USB-Type-C connector 320a corresponds to the USB PD, while the USB-Type-C connector 320b does not, the heat generated by the USB-Type-C connector 320a is greater than that of the USB-Type-C connector 320b. Therefore, it is preferable that the distance L4 from the second locking member 332 to the USB-Type-C connector 320a is shorter than the distance L2 from the first locking member 331 to the USB-Type-C connector 320b, thereby placing the heat-generating USB-Type-C connector 320a in a more easily dissipated location within the limited mounting surface 301 of the substrate 300. As a result, the entire substrate 300 experiences improved heat dissipation.

[0245] Furthermore, the distance L1 is shorter than the distance L7. Therefore, the effect of the heat generated by the second coil 121b on the USB hub 53 can be suppressed, while the first locking member 331 can effectively release the heat generated by the first coil 121a.

[0246] Furthermore, the distance L3 is shorter than the distance L7. Therefore, the effect of the heat generated by the first coil 121a on the USB hub 53 can be suppressed, while the second locking member 332 can effectively release the heat generated by the second coil 121b.

[0247] Furthermore, by increasing the distance L7, that is, by separating the first coil 121a and the second coil 121b, which generate a lot of heat, among the components mounted on the substrate 300, the heat-generating parts on the substrate 300 can be dispersed, thereby improving the heat dissipation efficiency.

[0248] 1-7. USB cable

[0249] Reference Figure 18 The connection of USB-Type-C cables 400a and 400b, USB-Type-A cables 400c and 400d, and USB-Type-B cable 400e to connector section 220 will be described. Figure 18 This diagram shows USB-Type-C cables 400a and 400b, USB-Type-A cables 400c and 400d, and USB-Type-B cable 400e and connector section 220.

[0250] The USB-Type-C cable 400a includes a plug 401a, a cover 402a, and a connecting cable 407a. The plug 401a is electrically connected to the connecting cable 407a, and its connection portion is covered by the cover 402a. The plug 401a protrudes from the end 403a of the cover 402a and connects to the USB-Type-C jack connector 320a. Specifically, the plug 401a of the USB-Type-C cable 400a is inserted into the USB-Type-C jack connector 320a through an opening 220a.

[0251] The USB-Type-C cable 400b includes a plug 401b, a cover 402b, and a connecting cable 407b. The plug 401b is electrically connected to the connecting cable 407b, and its connection portion is covered by the cover 402b. The plug 401b protrudes from the end 403b of the cover 402b and connects to the USB-Type-C jack connector 320b. Specifically, the plug 401b of the USB-Type-C cable 400b is inserted into the USB-Type-C jack connector 320b through an opening 220b.

[0252] The USB-Type-A cable 400c includes a plug 401c, a cover 402c, and a connecting cable 407c. The plug 401c is electrically connected to the connecting cable 407c, and its connection portion is covered by the cover 402c. The plug 401c protrudes from the end 403c of the cover 402c and connects to the USB-Type-A jack connector 320c. Specifically, the plug 401c of the USB-Type-A cable 400c is inserted into the USB-Type-A jack connector 320c through an opening 220c.

[0253] The USB-Type-A cable 400d includes a plug 401d, a cover 402d, and a connecting cable 407d. The plug 401d is electrically connected to the connecting cable 407d, and its connection portion is covered by the cover 402d. The plug 401d protrudes from the end 403d of the cover 402d and connects to the USB-Type-A jack connector 320d. Specifically, the plug 401d of the USB-Type-A cable 400d is inserted into the USB-Type-A jack connector 320d through an opening 220d.

[0254] The USB-Type-B cable 400e includes a plug 401e, a cover 402e, and a connecting cable 407e. The plug 401e is electrically connected to the connecting cable 407e, and its connection portion is covered by the cover 402e. The plug 401e protrudes from the end 403e of the cover 402e and connects to the USB-Type-B jack connector 320e. Specifically, the plug 401e of the USB-Type-B cable 400e is inserted into the USB-Type-B jack connector 320e through an opening 220e.

[0255] The exposed length Xc of the plugs 401a and 401b of USB-Type-C cables 400a and 400b is shorter than the exposed length Xa of the plugs 401c and 401d of USB-Type-A cables 400c and 400d.

[0256] For example, when USB-Type-A connectors 320c and 320d and USB-Type-C connectors 320a and 320b are arranged on the same side, and USB-Type-A cables 400c and 400d are inserted into USB-Type-A connectors 320c and 320d, if the ends 403c and 403d of USB-Type-A cables 400c and 400d are in contact with the first connector face 221, the plugs 401a and 401b of USB-Type-C cables 400a and 400b may not be able to be inserted into USB-Type-C connectors 320a and 320b.

[0257] This is because the exposed portion (Xc) of the plugs 401a and 401b of the USB-Type-C cables 400a and 400b is shorter than the exposed portion (Xa) of the plugs 401c and 401d of the USB-Type-A cables 400c and 400d. Correspondingly, the plugs 401a and 401b of the USB-Type-C cables 400a and 400b cannot be inserted into the USB-Type-C jack connectors 320a and 320b. In other words, the USB-Type-C cables 400a and 400b may be in a so-called half-inserted state.

[0258] To reduce the likelihood of the connectors being in a partially inserted state, the USB-Type-C connectors 320a and 320b are configured to be closer to the first connector surface 221 than the USB-Type-A connectors 320c and 320d. Specifically, the USB-Type-C connectors 320a and 320b are configured along the first side 311 of the substrate 300, and the USB-Type-A connectors 320c and 320d are configured along the second side 312 of the substrate 300.

[0259] If there is no step A between the first side 311 and the second side 312 of the substrate 300, the USB-Type-A connectors 320c and 320d are positioned further away from the first connector surface 221 than the USB-Type-C connectors 320a and 320b. In this case, a gap is created between the openings 220c and 220d and the USB-Type-A connectors 320c and 320d, allowing foreign objects such as trash or insects to potentially enter the connector portion 220 through this gap and adhere to the mounting surface 301 of the substrate 300.

[0260] By providing a step A between the first side 311 and the second side 312 of the substrate 300, the gap between the openings 220c and 220d and the USB-Type-A connectors 320c and 320d is reduced, and the openings 220c and 220d are aligned with the insertion ports of the USB-Type-A connectors 320c and 320d. This reduces the likelihood of the material attaching to the mounting surface 301 of the substrate 300.

[0261] Reference Figure 19 and Figure 20 The following describes the situation where USB-Type-C cables 400a and 400b and USB-Type-A cables 400c and 400d are inserted into connector section 220. Figure 19 Indicates the first state. Figure 20 This indicates the second state. Additionally, the direction in which USB-Type-C cables 400a and 400b and USB-Type-A cables 400c and 400d are inserted into connector section 220 is designated as the first direction.

[0262] In explanation Figure 19 and Figure 20 Distances D1 to D4 are defined as follows. Unless otherwise specified, distances D1 to D4 refer to the shortest distances between them. Distance D1 is the distance from the first side 311 of the substrate 300 to the inner surface of the first connector surface 221. Distance D2 is the distance from the second side 312 of the substrate 300 to the inner surface of the first connector surface 221. Distance D3 is the distance from the insertion port of the USB-Type-C connectors 320a and 320b to the ends 403a and 403b of the USB-Type-C cables 400a and 400b. Distance D4 is the distance from the insertion port of the USB-Type-A connectors 320c and 320d to the ends 403c and 403d of the USB-Type-A cables 400c and 400d.

[0263] like Figure 19As shown, in the first state, the distance D1 from the inner surface of the first connector surface 221 to the first side 311 is shorter than the distance D2 from the inner surface of the first connector surface 221 to the second side 312, and the difference between distance D2 and distance D1 is greater than the difference between distance D4 and distance D3. The relationship between these distances D1, D2, D3, and D4 is set as condition 1. Because condition 1 is satisfied, the likelihood of achieving the aforementioned semi-inserted state is reduced when USB-Type-C connectors 320a and 320b and USB-Type-A connectors 320c and 320d are arranged side-by-side.

[0264] In addition, such as Figure 20 As shown, the substrate 300 can also be configured to face the first connector surface 221 so that the first side 311 is in contact with the inner surface of the first connector surface 221 in the second state. In this case, in addition to reducing the possibility of reaching the aforementioned semi-insertion state, it is easy to align the substrate 300 with the first connector surface 221 with the first side 311 as a reference.

[0265] Additionally, the ends 403a and 403b of the USB-Type-C cables 400a and 400b, and the ends 403c and 403d of the USB-Type-A cables 400c and 400d, can also be contacted with the outer surface of the first connector face 221. In this case, in addition to reducing the possibility of reaching the aforementioned semi-inserted state, by inserting the USB-Type-C cables 400a and 400b and the USB-Type-A cables 400c and 400d into the connector portion 220, the gaps between the openings 220a, 220b and the openings 220c and 220d are reduced, thus reducing the possibility of foreign objects such as trash or insects entering the connector portion 220.

[0266] In the second state, the distance D1 from the inner surface of the first connector surface 221 to the first edge 311 is zero. Furthermore, the difference between distance D4 and distance D3 is zero. Therefore, the difference between distance D2 and distance D1 is greater than the difference between distance D4 and distance D3. Since the second state also satisfies the first condition, the same effect as the first state can be obtained.

[0267] Because the USB-Type-C connectors 320a and 320b are smaller than other connectors, such as the USB-Type-A connectors 320c and 320d, their contact area with the mounting surface 301 of the substrate 300 is also smaller than that of the USB-Type-A connectors 320c and 320d. Therefore, the USB-Type-C connectors 320a and 320b are preferably integrally disposed on the mounting surface 301 of the substrate 300. For example, if the USB-Type-C connectors 320a and 320b are configured to protrude from the substrate 300, the contact area with the mounting surface 301 of the substrate 300 cannot be sufficiently ensured, resulting in a weaker external force load relative to the jamming of the plugs 401a and 401b of the USB-Type-C cables 400a and 400b.

[0268] like Figures 18 to 20 As shown, by arranging the insertion ports of the USB-Type-C connectors 320a and 320b along the first side 311 of the substrate 300, the contact area between the USB-Type-C connectors 320a and 320b and the mounting surface 301 of the substrate 300 can be sufficiently ensured. Therefore, by providing a step A between the first side 311 and the second side 312 of the substrate 300, and arranging the USB-Type-C connectors 320a and 320b along the first side 311, which protrudes more than the second side 312, the contact area between the USB-Type-C connectors 320a and 320b and the mounting surface 301 of the substrate 300 can be ensured, and the distance between their insertion ports and the first connector surface 221 can be shortened. As a result, the possibility of the plugs 401a and 401b of the USB-Type-C cables 400a and 400b becoming partially inserted relative to the USB-Type-C connectors 320a and 320b can be suppressed.

[0269] 1-8. Fixing the USB-Type-C connector

[0270] Reference Figure 21 The USB-Type-C connector 320a is described below. Figure 21 This is a 3D diagram of the USB Type-C connector 320a. (Refer to...) Figure 22 The USB-Type-C connector 320b is described below. Figure 22 This is a 3D view of the USB-Type-C connector 320b. Furthermore, the configuration of the USB-Type-C connector 320b is the same as that of the USB-Type-C connector 320a.

[0271] The USB-Type-C connector 320a includes a first part 322a, a second part 323a, a connecting part 324a, 325a, and protrusions 327a and 328a.

[0272] The first portion 322a is planar and forms the bottom surface of the USB-Type-C connector 320a. The second portion 323a is planar and faces the first portion 322a, forming the top surface of the USB-Type-C connector 320a. Connecting portions 324a and 325a are bent and connect the first portion 322a and the second portion 323a, respectively. Furthermore, connecting portions 324a and 325a form the side surface of the USB-Type-C connector 320a.

[0273] Similar to the USB-Type-C connector 320a, the USB-Type-C connector 320b has a third part 322b, a fourth part 323b, connecting parts 324b and 325b, and protrusions 327b and 328b.

[0274] The third part 322b is planar and forms the bottom surface of the USB-Type-C connector 320b. The fourth part 323b is also planar and faces the third part 322b, forming the top surface of the USB-Type-C connector 320b. Connecting parts 324b and 325b are bent and connect the third part 322b and the fourth part 323b, respectively. Furthermore, connecting parts 324b and 325b form the side surface of the USB-Type-C connector 320b.

[0275] With the USB-Type-C connector 320a mounted on the substrate 300, the first portion 322a forming the bottom surface is in contact with the mounting surface 301 of the substrate 300, and the second portion 323a forming the upper surface is... Figure 23 When the protective part 340a is pressed, the USB-Type-C connector 320a is secured to prevent it from being peeled off from the mounting surface 301.

[0276] With the USB-Type-C connector 320b mounted on the substrate 300, the third portion 322b forming the bottom surface is in contact with the mounting surface 301 of the substrate 300, and the fourth portion 323b forming the upper surface is... Figure 23 When the protective part 340b is pressed, the USB-Type-C connector 320b is secured to prevent it from being peeled off from the mounting surface 301.

[0277] Additionally, the USB-Type-C connector 320a has an opening 321a and a back panel 326a. The plug 401a of the USB-Type-C cable 400a is inserted through the opening 321a and connects to a pin (not shown) located inside the USB-Type-C connector 320a. This pin, for example, is located on the back panel 326a and is electrically connected to and controlled by the USB controller 34. Thus, the external device 10a connected to the printing device 2 via the USB-Type-C cable 400a and the printing device 2 can communicate.

[0278] The protrusions 327a and 328a secure the USB-Type-C connector 320a to the mounting surface 301 of the substrate 300. For example, when the USB-Type-C connector 320a is mounted on the mounting surface 301 of the substrate 300, the first portion 322a constituting the bottom surface and the mounting surface 301 can be fixed with an adhesive or similar bonding agent. However, the two protrusions 327a and 328a can also be fixed by inserting into the substrate 300. Therefore, the USB-Type-C connector 320a is fixed to the substrate 300, reducing the likelihood of it being detached from the substrate 300.

[0279] Furthermore, the USB-Type-C connector 320a preferably has multiple protrusions. By having the multiple protrusions of the USB-Type-C connector 320a insert into the mounting surface 301, the possibility of the USB-Type-C connector 320a being peeled off from the substrate 300 is further reduced. Furthermore, protrusions 327a and 328a are examples of multiple protrusions.

[0280] Reference Figure 23 and Figure 24 The prevention parts 340a and 340b are explained.

[0281] Figure 23 This is a diagram showing the prevention parts 340a and 340b when viewed from above on the first connector surface 221. Figure 24 This is an exploded perspective view of the protection unit 340a and the USB-Type-C connector 320a.

[0282] like Figure 23 As shown, the anti-blocking parts 340a and 340b are housed inside the connector part 220, pressing and securing the USB-Type-C connector 320a and 320b respectively. Furthermore, the USB-Type-C connector 320a is secured to the substrate 300 by inserting the protrusions 327a and 328a of the USB-Type-C connector 320a into the substrate 300. Moreover, the anti-blocking part 340a is an example of a first anti-blocking part, and the anti-blocking part 340b is an example of a second anti-blocking part.

[0283] The protective parts 340a and 340b include metal right-angle members 450a and 450b and conductive soft pads 500a and 500b. The right-angle members 450a and 450b are made of metal and are fixed to the first connector surface 221 by screws 350a and 350b. In other words, the right-angle members 450a and 450b are fixed to the first connector surface 221 by screws. As a result, the potential of the protective parts 340a and 340b is fixed, and they have the effect of removing, for example, static electricity carried by the USB-Type-C connectors 320a and 320b, and protecting the USB-Type-C connectors 320a and 320b from electromagnetic noise. Furthermore, the right-angle member 450a is an example of a first right-angle member, and the right-angle member 450b is an example of a second right-angle member.

[0284] The soft pads 500a and 500b are elastic components such as sponges, and are joined to the right-angle components 450a and 450b by adhesives such as double-sided tape. Figure 23 The soft pads 500a and 500b shown block the right-angled parts 450a and 450b from the USB-Type-C connectors 320a and 320b. That is, the soft pads 500a and 500b are in a state where they are clamped between the right-angled parts 450a and 450b and the USB-Type-C connectors 320a and 320b, retracted compared to their normal state. Furthermore, soft pad 500a is an example of a first soft pad, and soft pad 500b is an example of a second soft pad.

[0285] Therefore, by preventing the soft pads 500a and 500b in the components included in the preventive parts 340a and 340b from pressing the USB-Type-C connectors 320a and 320b, the preventive parts 340a and 340b can fix the USB-Type-C connectors 320a and 320b in place. Furthermore, the soft pad 500a is a retractable component, so when pressing the USB-Type-C connector 320a, the connector can be set without damaging it.

[0286] Figure 24 This is an exploded perspective view of the protective part 340a and the USB-Type-C connector 320a. The structure of the right-angle part 450b is the same as that of the right-angle part 450a, so the description of the right-angle part 450a will be used instead. The right-angle part 450a has a mating surface 451a, a threaded hole 452a, side surfaces 453a and 454a, a top surface 455a, and a back surface 456a.

[0287] The mating surface 451a and the upper surface 455a are plate-shaped and perpendicular to each other. A threaded hole 452a is provided on the mating surface 451a, and the right-angled component 450a is fixed to the first connector surface 221 by engaging the threaded hole 452a with the screw 350a. In other words, the metal right-angled component 450a is fixed to the first connector surface 221 by a screw.

[0288] Furthermore, as described above, the soft pad 500a is conductive, and when the metal right-angled part 450a is fixed to the first connector surface 221 with screws, the soft pad 500a becomes at the same potential as the first connector surface 221. Therefore, the potential of the USB-Type-C jack connector 320a pressed by the soft pad 500a is stable, and it becomes stronger relative to noise or static electricity.

[0289] With the right-angle component 450a fixed to the first connector surface 221, the upper surface 455a is parallel to the mounting surface 301 of the substrate 300. That is, the upper surface 455a is parallel to the first portion 322a of the bottom surface constituting the USB-Type-C connector 320a and the second portion 323a constituting the upper surface.

[0290] The soft pad 500a is embedded in the space S defined by the sides 453a, 454a, upper surface 455a, and back surface 456a of the right-angled member 450a. For example... Figure 24 As shown, the dimensions of space S are approximately width W, depth D, and height H.

[0291] By preventing the soft pad 500a in the components included in the prevention section 340a from pressing against the second portion 323a constituting the upper surface of the USB-Type-C connector 320a, the prevention section 340a prevents the USB-Type-C connector 320a from being fixed in place. Therefore, it is preferable that the soft pad 500a contacts the second portion 323a constituting the upper surface of the USB-Type-C connector 320a, thereby increasing the contact area. In other words, it is preferable that there is as little gap as possible between the soft pad 500a and the second portion 323a constituting the upper surface of the USB-Type-C connector 320a.

[0292] Specifically, the width Wa of the preferred soft pad 500a is larger than the width W of the space S, so that the soft pad 500a is compressed by the sides 453a and 454a of the right-angle member 450a. In the width Wa direction, by increasing the area of ​​the second part 323a that the soft pad 500a presses against to form the upper surface of the USB-Type-C connector 320a, the soft pad 500a securely fixes the USB-Type-C connector 320a to the substrate 300.

[0293] Furthermore, it is preferable that the height Ha of the soft pad 500a is greater than the height H, specifically, that it contacts at least the second portion 323a of the upper surface constituting the USB-Type-C connector 320a. Since the soft pad 500a contracts, it is preferable to increase the height Ha of the soft pad 500a so that the soft pad 500a can press against the second portion 323a of the upper surface constituting the USB-Type-C connector 320a.

[0294] Furthermore, it is preferable that the depth Da of the soft pad 500a is not too large. Increasing the depth Da of the soft pad 500a increases the area of ​​the second portion 323a that the soft pad 500a presses against the upper surface of the USB-Type-C connector 320a in the depth Da direction. However, if the depth Da of the soft pad 500a is too large, the compressed soft pad 500a may reach near the opening 321a of the USB-Type-C connector 320a. Therefore, the depth Da of the soft pad 500a is preferably the same size as the depth D. More preferably, the soft pad 500a is large enough to be housed within the space S.

[0295] When the compressed pad 500a is near the opening 321a of the USB-Type-C connector 320a, the plug 401a of the USB-Type-C cable 400a may come into contact with the compressed pad 500a. Since the potential of the plug 401a of the USB-Type-C cable 400a and the potential of the compressed pad 500a are not necessarily the same, this could potentially cause malfunctions or other issues with the external device 10a connected via the USB-Type-C cable 400a.

[0296] 2. Variations

[0297] 2-1. Variation Example 1

[0298] Reference Figure 25 A modified example 1 of the connector section 220 of this embodiment will be described. An example of the configuration of the connector section 2201 in modified example 1 will be described. In describing modified example 1, the same reference numerals are used for configurations identical to those in this embodiment, and their descriptions are omitted or simplified. Figure 25 This is a top view of the first connector surface 221 and the second connector surface 222 of the connector section 220 in Modified Example 1.

[0299] The configuration of the plurality of connectors provided on the second connector surface 222 of the connector section 2201 in Modified Example 1 is different from that in this embodiment, and the positions of the USB-Type-B jack connector 320e and the power connector 320f are different.

[0300] Specifically, in this embodiment, a power connector 320f is disposed between the DK jack connector 320g and the USB-Type-B jack connector 320e. In Modification 1, a USB-Type-B jack connector 320e is disposed between the DK jack connector 320g and the power connector 320f.

[0301] Because the USB-Type-B connector 320e is less likely to be mis-inserted compared to the DK connector 320g, this configuration is also possible. In other words, even when it's difficult to visually confirm or to locate by touch, the user can correctly identify the position of the USB-Type-B connector 320e, thus reducing the likelihood of mis-inserting the DK connector 320g.

[0302] 2-2. Variation Example 2

[0303] Reference Figure 26 A modified example 2 of the substrate 300 of this embodiment will be described. An example of the configuration of the substrate 300a in modified example 2 will be described. In describing modified example 2, the same reference numerals are used for configurations identical to those in this embodiment, and their descriptions are omitted or simplified. Figure 26 This is a simplified diagram of substrate 300a in modified example 2.

[0304] The substrate 300a of Modified Example 2 differs from that of this embodiment in that it includes a slot 320h. Specifically, while the substrate 300 of this embodiment is equipped with a USB-Type-C connector 320a, the substrate 300a of Modified Example 2 replaces the USB-Type-C connector 320a with a slot 320h for inserting a memory card. The slot 320h is controlled by the CPU 31 via the system bus 41 to rewrite the data on the memory card. For example, the slot 320h corresponds to an SD card or a micro SD card.

[0305] By operating the smart device 3a connected to the USB-Type-C interface 60a, the user can store checkout information on the memory card. Furthermore, the smart device 3a can instruct the printing device 2 to perform printing based on the data stored on the memory card. For example, the printing device 2 can print the checkout information stored on the memory card.

[0306] Alternatively, the second power supply circuit 12b may differ from this embodiment, supplying power to the USB-Type-C connector 320b. In this case, the USB-Type-C connector 320b can also be used as a connector corresponding to USB PD.

[0307] 3. Electronic devices

[0308] Reference Figure 27The electronic device 500 involved in this embodiment will be described. Figure 27 This is a functional block diagram showing the general configuration of the electronic device 500 in this embodiment.

[0309] The electronic device 500 may also include a semiconductor integrated circuit 505, a CPU 510, an operation unit 520, a ROM 530, a RAM 540, a communication unit 550, a display unit 560, and a sound output unit 570. Furthermore, the electronic device 500 may also be configured by omitting or modifying some of these elements, or by adding other elements.

[0310] Semiconductor integrated circuit 505 performs various processes according to commands from CPU 510. For example, semiconductor integrated circuit 505 corrects input data or converts data format according to commands from CPU 510.

[0311] CPU 510 performs various arithmetic or control processing using data supplied from semiconductor integrated circuit 505, etc., according to the program stored in ROM 530, etc. For example, CPU 510 performs various data processing based on operation signals supplied from operation unit 520, or controls communication unit 550 for data communication with external devices, or generates image signals for display unit 560 to display various images, or generates sound signals for sound output unit 570 to output various sounds.

[0312] The operation unit 520 is, for example, an input device including operation keys or push-button switches, which outputs operation signals corresponding to the user's operation to the CPU 510. The ROM 530 stores programs or data for the CPU 510 to perform various arithmetic or control processing. Additionally, the RAM 540 is used as the working area of ​​the CPU 510, temporarily storing programs or data read from the ROM 530, data input using the operation unit 520, or the results of calculations performed by the CPU 510 according to the program.

[0313] The communication unit 550, for example, is composed of analog and digital circuits, and performs data communication between the CPU 510 and external devices. The display unit 560 includes, for example, an LCD (Liquid Crystal Display), and displays various information based on display signals supplied from the CPU 510. Furthermore, the sound output unit 570 includes, for example, a speaker, and outputs sound based on sound signals supplied from the CPU 510.

[0314] As described above, the electronic device 500 may, for example, be a printing apparatus equipped with a printing unit 20 for printing on the medium P. Additionally, the electronic device 500 may also be, for example, a projector, electronic dictionary, video game device, mobile terminal such as a mobile phone, digital still camera, digital cinema, television set, recorder, anti-theft monitor, head-mounted display, personal computer, network device, car navigation device, measuring device, and medical device (e.g., electronic thermometer, blood pressure monitor, blood glucose meter, electrocardiogram measuring device, ultrasound diagnostic device, and electronic endoscope).

[0315] USB-Type-C connector 320a is an example of a first connector. External device 10a is an example of a first external device. DK connector 320g is an example of a second connector. Cash drawer 270 is an example of a second external device. USB-Type-B connector 320e is an example of a third connector. External device 10e is an example of a third external device. USB-Type-A connector 320c is an example of a fourth connector. External device 10c is an example of a fourth external device. The plug 401a of USB-Type-C cable 400a is an example of a plug for a USB-Type-C cable.

[0316] The embodiments and variations have been described above, but the present invention is not limited to these embodiments and can be implemented in various ways without departing from its spirit. For example, the above embodiments can also be appropriately combined.

[0317] This invention includes configurations that are substantially the same as those described in the embodiments (e.g., configurations with the same function, method, and result, or configurations with the same purpose and effect). Additionally, this invention includes configurations that replace non-essential parts of the configurations described in the embodiments. Furthermore, this invention includes configurations capable of achieving the same effects as those described in the embodiments or capable of achieving the same purpose. Additionally, this invention includes configurations incorporating known techniques into the configurations described in the embodiments.

[0318] The following can be derived from the above embodiments and variations.

[0319] One method of printing apparatus has:

[0320] The printing department is responsible for printing on the media.

[0321] The control unit controls the drive of the printing unit;

[0322] A power connector supplies power to the control unit;

[0323] A first connector socket is electrically connected to a first external device, enabling the first external device to communicate with the control unit; and

[0324] The second connector is electrically connected to a second external device, enabling communication between the second external device and the control unit.

[0325] The first connector is a USB-Type-C connector.

[0326] The second jack connector is a LAN or DK jack connector.

[0327] The second connector allows a USB-Type-C cable plug to be physically inserted.

[0328] The plug cannot be physically inserted into the power connector.

[0329] The power connector is disposed between the first socket connector and the second socket connector.

[0330] According to this printing device, the plug of the USB-Type-C cable might be mistakenly inserted into the LAN or DK connector, which serves as the second connector, instead of into the USB-Type-C connector (the first connector). Because a power connector, preventing accidental insertion of the USB-Type-C cable plug, is positioned between the first and second connectors, the user can correctly identify the positions of both connectors. Therefore, the plug of the USB-Type-C cable can be correctly inserted into the first connector without being mistakenly inserted into the second connector. This reduces the possibility of malfunction of the second external device or damage to the second external device and the second connector.

[0331] Another configuration of the printing apparatus is:

[0332] It has a medium discharge port for discharging the medium.

[0333] The user cannot visually confirm the power connector, the first socket connector, and the second socket connector while being able to visually confirm the media outlet.

[0334] According to this printing apparatus, the user can visually inspect the media being discharged from the media outlet while simultaneously inspecting the content printed on the media. Furthermore, while the user can visually inspect the media outlet, they cannot visually inspect the power connector, the first jack connector, and the second jack connector; therefore, the user does not need to worry about printing the wiring connections to each connector.

[0335] One embodiment of the printing apparatus may also be: having:

[0336] The main housing houses the printing section; and

[0337] The medium is discharged from the medium outlet.

[0338] The medium outlet is located on the first shell surface of the main body shell.

[0339] The power connector, the first socket connector, and the second socket connector are disposed on the first body housing surface inside the body housing, which is different from the first housing surface.

[0340] According to the printing apparatus, since the media outlet is disposed on a different surface from the power connector, the first jack connector, and the second jack connector, the printed media discharged from the media outlet will not come into contact with the cables connected in each connector and will be discharged smoothly from the media outlet.

[0341] Another configuration of the printing apparatus is:

[0342] It has a third connector that is electrically connected to a third external device, enabling the third external device to communicate with the control unit.

[0343] The third connector is a USB-Type-B connector.

[0344] The plug can be physically inserted into the third jack connector.

[0345] The insertion port of the third connector is smaller than that of the second connector.

[0346] The third socket connector is disposed between the first socket connector and the second socket connector.

[0347] According to this printing apparatus, since a third jack connector, which is less likely to be mistakenly inserted into the USB-Type-C cable plug than the second jack connector, is located between the first and second jack connectors, the possibility of the USB-Type-C cable plug being mistakenly inserted into the second jack connector can be reduced. This reduces the possibility of malfunction of the second external device or damage to the second external device and the second jack connector.

[0348] Another configuration of the printing apparatus is:

[0349] The third socket connector is disposed between the second socket connector and the power connector.

[0350] According to this printing apparatus, since a third jack connector, which is less likely to be mistakenly inserted into the USB-Type-C cable plug than the second jack connector, is located between the second jack connector and the power connector, the possibility of the USB-Type-C cable plug being mistakenly inserted into the second jack connector can be reduced. This reduces the possibility of malfunction of the second external device or damage to the second external device and the second jack connector.

[0351] Another configuration of the printing apparatus is:

[0352] It has a fourth connector that is electrically connected to a fourth external device, enabling the fourth external device to communicate with the control unit.

[0353] The fourth connector is a USB-Type-A connector.

[0354] The plug can be physically inserted into the fourth jack connector.

[0355] The insertion port of the fourth connector is smaller than that of the second connector.

[0356] The fourth socket connector is disposed between the first socket connector and the second socket connector.

[0357] According to this printing apparatus, since a fourth jack connector, which is less likely to be mistakenly inserted into the USB-Type-C cable plug than the second jack connector, is located between the first and second jack connectors, the possibility of the USB-Type-C cable plug being mistakenly inserted into the second jack connector can be reduced. This reduces the possibility of malfunction of the second external device or damage to the second external device and the second jack connector.

[0358] Another configuration of the printing apparatus is:

[0359] It has a fourth connector that is electrically connected to a fourth external device, enabling the fourth external device to communicate with the control unit.

[0360] The fourth connector is a USB-Type-A connector.

[0361] The plug can be physically inserted into the fourth jack connector.

[0362] The insertion port of the fourth connector is smaller than that of the second connector.

[0363] The fourth socket connector is disposed between the first socket connector and the second socket connector.

[0364] The insertion port of the fourth connector is smaller than that of the third connector.

[0365] The fourth socket connector is disposed between the first socket connector and the third socket connector.

[0366] According to this printing apparatus, since a fourth connector, which is less likely to be mistakenly inserted into the USB-Type-C cable plug than the third connector, is located between the first and third connectors, the possibility of the USB-Type-C cable plug being mistakenly inserted into the second connector can be reduced. This reduces the possibility of malfunction of the third external device or damage to the third external device and the third connector.

[0367] Another configuration of the printing apparatus is:

[0368] The long side of the insertion port of the first socket connector has a different direction from the long side of the insertion port of the fourth socket connector.

[0369] According to the printing device, since the first socket connector and the fourth socket connector are configured such that the long side direction of the first socket connector is different from that of the fourth socket connector, the possibility of incorrect insertion of the USB-Type-C cable plug can be reduced.

Claims

1. A printing apparatus, characterized in that, have: The printing department is responsible for printing on the media. The control unit controls the drive of the printing unit; A power connector supplies power to the control unit; The first jack connector is electrically connected to the first external device, enabling the first external device to communicate with the control unit; as well as The second connector is electrically connected to a second external device, enabling communication between the second external device and the control unit. The first connector is a USB-Type-C connector. The second jack connector is a LAN or DK jack connector. The second connector allows a USB-Type-C cable plug to be physically inserted. The plug cannot be physically inserted into the power connector. The power connector is disposed between the first socket connector and the second socket connector.

2. The printing apparatus according to claim 1, characterized in that, The printing apparatus has a media outlet for discharging the media. The user cannot visually confirm the power connector, the first socket connector, and the second socket connector while being able to visually confirm the media outlet.

3. The printing apparatus according to claim 1, characterized in that, The printing apparatus has: The main housing houses the printing section; as well as The medium is discharged from the medium outlet. The medium outlet is located on the first shell surface of the main body shell. The power connector, the first socket connector, and the second socket connector are disposed on the first body housing surface inside the body housing, which is different from the first housing surface.

4. The printing apparatus according to any one of claims 1 to 3, characterized in that, The printing apparatus has a third connector that is electrically connected to a third external device, enabling the third external device to communicate with the control unit. The third connector is a USB-Type-B connector. The plug can be physically inserted into the third jack connector. The insertion port of the third connector is smaller than that of the second connector. The third socket connector is disposed between the first socket connector and the second socket connector.

5. The printing apparatus according to claim 4, characterized in that, The third socket connector is disposed between the second socket connector and the power connector.

6. The printing apparatus according to any one of claims 1 to 3, characterized in that, The printing apparatus has a fourth connector that is electrically connected to a fourth external device, enabling communication between the fourth external device and the control unit. The fourth connector is a USB-Type-A connector. The plug can be physically inserted into the fourth jack connector. The insertion port of the fourth connector is smaller than that of the second connector. The fourth socket connector is disposed between the first socket connector and the second socket connector.

7. The printing apparatus according to claim 4, characterized in that, The printing apparatus has a fourth connector that is electrically connected to a fourth external device, enabling communication between the fourth external device and the control unit. The fourth connector is a USB-Type-A connector. The plug can be physically inserted into the fourth jack connector. The insertion port of the fourth connector is smaller than that of the second connector. The fourth socket connector is disposed between the first socket connector and the second socket connector. The insertion port of the fourth connector is smaller than that of the third connector. The fourth socket connector is disposed between the first socket connector and the third socket connector.

8. The printing apparatus according to claim 7, characterized in that, The long side of the insertion port of the first socket connector has a different direction from the long side of the insertion port of the fourth socket connector.

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