Printing apparatus

Abstract

The invention provides a printing apparatus capable of eliminating restrictions on the arrangement of a power receiving coil. The printing apparatus includes: a housing having a roll paper accommodating portion that accommodates roll paper; a cover body which is connected to the housing via a first rotary movable part and opens and closes the roll paper accommodating part; a battery accommodating portion formed in the case; the battery is accommodated in the battery accommodating part; a band clip attached to the housing; and a power receiving module that receives a power transmission signal from the outside by non-contact power supply and supplies power to the battery, in which the case has a case first surface on which the cover body is formed and a case second surface different from the case first surface, the tape clip is provided on the case second surface, and the power receiving module receives the power transmission signal from the outside by non-contact power supply and supplies power to the battery. The power receiving module is disposed between the cover body and the battery.

Description

Technical Field

[0001] The present disclosure relates to a printing device. Background Art

[0002] A portable printer that can be carried by a person is used.

[0003] Such a portable printer is carried and used by a payee, etc., for example, in meter reading of public charges.

[0004] Patent Document 1 describes a portable printer having a clip. The portable printer has a battery housing portion for a detachable battery (see Patent Document 1). In this portable printer, the clip can be attached to pants or the like in advance.

[0005] Patent Document 2 describes a portable mobile printer that is equipped with a unit capable of wireless power supply (see Patent Document 2).

[0006] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2012-45808

[0007] Patent Document 2: Japanese Unexamined Patent Application Publication No. 2023-78600

[0008] However, in the portable printers related to the prior art as described above, the power receiving coil is usually arranged on the same surface as the surface on which the battery is mounted. Therefore, there are sometimes restrictions on the arrangement position of the clip. For example, in a configuration where the clip is screwed to the bottom surface, it may be necessary to use a tool to align the power transmission coil and the power receiving coil in a state where the clip is temporarily removed. Summary of the Invention

[0009] One aspect for solving the above technical problem relates to a printing device including: a housing having a roll paper housing portion for accommodating roll paper; a lid body connected to the housing via a first rotatable portion and opening and closing the roll paper housing portion; a battery housing portion formed in the housing; a battery accommodated in the battery housing portion; a clip attached to the housing; and a power receiving module that receives a power transmission signal from the outside by non-contact power supply and supplies power to the battery. The housing has a first housing surface on which the lid body is formed and a second housing surface different from the first housing surface. The clip is provided on the second housing surface, and the power receiving module is arranged between the lid body and the battery. Brief Description of the Drawings

[0010] Figure 1 is a diagram showing the electrical configuration of a mobile printer.

[0011] Figure 2 is a perspective view of the mobile printer with the lid body closed.

[0012] Figure 3 It is a perspective view of a mobile printer with the cover open.

[0013] Figure 4A It is a cross-sectional view showing an example of the internal structure of the mobile printer.

[0014] Figure 4B It is a view showing an example of the schematic structure of the mobile printer with the cover open relative to the housing.

[0015] Figure 4C It is a view showing an example of the situation on the back side of the mobile printer.

[0016] Figure 4D It is a view showing an example of the arrangement position of the power receiving module when using the protective cover.

[0017] Figure 5 It is a view showing an example of the structure of the power receiving module.

[0018] Figure 6A It is an exploded view showing an example of the power receiving coil.

[0019] Figure 6B It is a view showing an example of the alignment of the power receiving coil and the power transmitting coil.

[0020] Description of Reference Numerals

[0021] 1... Mobile printer, 2... Commercial power supply, 3... First power circuit, 4... Power transmission unit, 5... Power transmission circuit, 6... Power transmission coil, 10... Power supply unit, 11... Power receiving module, 12... Power supply switching circuit, 13... Battery module, 14... Second power circuit, 20... Control unit, 21... Control circuit, 22... Non-volatile memory, 23... Receive buffer, 24... Print head drive control section, 25... Recording paper conveyance control section, 26... Recording paper cutting control section, 30... Print head, 32... Resistor body, 40... Conveyance unit, 42... Conveyance motor, 44... Opening, 46... Gear, 48... Paper pressing roller, 50... Cutting unit, 52... Cutting motor, 54... Fixed blade, 56... Movable blade, 60... Roll paper accommodating section, 61... Partition section, 61a... Partition section a, 61b... Partition section b, 61c... Partition section c, 70... Battery accommodating section, 80... First wiring board, 100... Housing, 110... Power receiving coil, 101... First surface, 102... Second surface, 103... Third surface, 104... Fourth surface, 105... Fifth surface, 106... Sixth surface, 111... Ring-shaped coil, 112... Molding component, 113... Coil internal area, 114... Coil area, 115... Coil external area, 120... Power receiving circuit, 121... Voltage conversion circuit, 122... Connector, 123... Second wiring board, 160... Discharge port, 311... Housing, 312... Cover, 313... Tape clip, 313a... First connection position, 411... First rotatable movable part, 412... First wiring, 412a... Wiring 1a, 511... Seventh surface, 521... Eighth surface, 611... First magnetic array, 612... First coil, 613... Magnetic shield, 614... Metal shield, 621... Second coil, CN1... First connector, CN2... Second connector, Ctr1... First control signal, Ctr2... Second control signal, Ctr3... Third control signal, E1... First end, E2... Second end, M1... Second magnetic array, P... Recording paper, Pmg... Magnetic field, R... Roll paper, R1... Shaft, Sdr... Head drive signal, Str... Medium conveyance signal, Sct... Medium cutting signal, UI... Operation section, UN1... Mechanical unit, Vac... Power supply voltage signal, Vbat... Battery DC voltage signal, Vch... Power supply DC voltage signal, Vd... Drive voltage signal, Vdc1... First DC voltage signal, Vdc2... Second DC voltage signal, Vpr... Power receiving signal, Vpt... Power transmission signal, TM1... Third end, TM2... Fourth end. Detailed implementation

[0022] Next, the implementation will be described with reference to the drawings.

[0023] Hereinafter, the accompanying drawings used are for illustrative purposes. It should be noted that the embodiments described below do not unduly limit the content recited in the claims. In addition, not all of the configurations described below are essential constituent elements.

[0024] In addition, for ease of explanation, the names of the constituent parts are sometimes numbered as first, second, etc. However, this numbering is for facilitating the designation of each constituent part.

[0025] The electrical configuration of the mobile printer 1 will be described.

[0026] Figure 1 is a diagram showing the electrical configuration of the mobile printer 1. The mobile printer 1 in the present embodiment is a so-called thermal printer that heats the surface of thermal paper as a recording medium by a thermal head having a plurality of heating elements, thereby printing desired characters, images, etc. on the recording medium. In addition, in Figure 1 , in addition to the mobile printer 1 of the present embodiment, as an external device that supplies driving power from the outside of the mobile printer 1, a commercial power supply 2, a first power supply circuit 3, and a power transmission unit 4 are also illustrated.

[0027] Here, in the present embodiment, the case where the mobile printer 1 is a thermal printer having a thermal head as a printing head is shown. However, as another example, the mobile printer 1 may be an inkjet printer having an inkjet head as a printing head.

[0028] The commercial power supply 2 generates a power supply voltage signal Vac that is an alternating voltage of a commercial frequency, and supplies it to the first power supply circuit 3 and the power transmission unit 4, respectively.

[0029] The first power supply circuit 3 converts the supplied power supply voltage signal Vac into a first DC voltage signal Vdc1 having a specified voltage value, and supplies it to the mobile printer 1. That is, driving power corresponding to the first DC voltage signal Vdc1 is supplied to the mobile printer 1. Such a first power supply circuit 3 is configured to include a converter circuit such as a flyback circuit, for example.

[0030] The power transmission unit 4 includes a power transmission circuit 5 and a power transmission coil 6. The power transmission circuit 5 converts the frequency of the power supply voltage signal Vac supplied from the first power supply circuit 3 into a high-frequency voltage signal of 100 kHz to 250 kHz, and outputs the converted voltage signal as a power transmission signal Vpt to the power transmission coil 6. Such a power transmission circuit 5 is configured to include a converter circuit that converts the power supply voltage signal Vac into a DC voltage, and an inverter circuit that converts the DC voltage into the high-frequency power transmission signal Vpt, for example. The power transmission coil 6 outputs a magnetic field Pmg corresponding to the input power transmission signal Vpt. In addition, by the mobile printer 1 receiving this magnetic field Pmg, driving power corresponding to the magnetic field Pmg is supplied to the mobile printer 1.

[0031] That is, drive power corresponding to the first DC voltage signal Vdc1 output from the first power supply circuit 3 provided outside and drive power corresponding to the magnetic field Pmg output from the power transmission unit 4 can be supplied to the mobile printer 1 of the present embodiment. In addition, the mobile printer 1 is driven by the drive power corresponding to the first DC voltage signal Vdc1 or the drive power corresponding to the magnetic field Pmg. It should be noted that in Figure 1 , the case where drive power is supplied based on both the first DC voltage signal Vdc1 output from the first power supply circuit 3 and the magnetic field Pmg output from the power transmission unit 4 is illustrated. However, drive power may be supplied to the mobile printer 1 based on only one of the first DC voltage signal Vdc1 output from the first power supply circuit 3 and the magnetic field Pmg output from the power transmission unit 4. Moreover, the configuration may be as follows: In addition to the first DC voltage signal Vdc1 output from the first power supply circuit 3 and the magnetic field Pmg output from the power transmission unit 4, drive power is supplied to the mobile printer 1 by a different method.

[0032] As Figure 1 shown, the mobile printer 1 includes a power supply unit 10, a control unit 20, a print head 30, a conveyance unit 40, and a cutting unit 50.

[0033] The power supply unit 10 includes a first connector CN1, a second connector CN2, a power receiving module 11, a power supply switching circuit 12, a battery module 13, and a second power supply circuit 14.

[0034] The first DC voltage signal Vdc1 output from the first power supply circuit 3 is supplied to the mobile printer 1 via the first connector CN1. The first DC voltage signal Vdc1 is input to the power supply switching circuit 12. As the first connector CN1 to which the first DC voltage signal Vdc1 is supplied in this way, a USB-Type-C socket connector having a shape that can mount a cable conforming to the USB-Type-C standard is used. That is, the power supply unit 10 includes a first connector CN1, which is a USB-Type-C socket connector to which the first DC voltage signal Vdc1 based on the power supply voltage signal Vac is supplied.

[0035] Here, in the first connector CN1 which is a USB-Type-C socket connector, in addition to the first DC voltage signal Vdc1, communication signals for performing communication conforming to the USB (Universal Serial Bus) standard between the mobile printer 1 and an external device may also be input. In this case, the mobile printer 1 may also include a USB communication driver for controlling communication conforming to the USB standard.

[0036] Moreover, the first DC voltage signal Vdc1 input to the first connector CN1 which is a USB-Type-C socket connector can also be a voltage signal compliant with the USB-PD (USB-Power Delivery) standard that can supply driving power of about 15W. In other words, the first connector CN1 as a USB-Type-C socket connector can input a voltage signal corresponding to the USB-PD standard, and can also input power of about 15W. In this case, the mobile printer 1 can also include a USB-PD driver for controlling power supply compliant with the USB-PD standard.

[0037] The power receiving module 11 receives the magnetic field Pmg output by the power transmitting unit 4. In addition, the power receiving module 11 generates a second DC voltage signal Vdc2 corresponding to the magnetic field Pmg and outputs it to the power supply switching circuit 12. Specifically, the power receiving module 11 has a power receiving coil 110 and a power receiving circuit 120. The power receiving coil 110 generates a high-frequency power receiving signal Vpr corresponding to the magnetic field Pmg by being supplied with the magnetic field Pmg, and outputs it to the power receiving circuit 120. The power receiving circuit 120 rectifies and smooths the supplied high-frequency power receiving signal Vpr, and by controlling the voltage value, converts it into a second DC voltage signal Vdc2 with a specified voltage value and supplies it to the power supply switching circuit 12. That is, the power receiving module 11 includes a power receiving coil 110 that receives the power transmission signal Vpt based on the power supply voltage signal Vac as the power receiving signal Vpr in a non-contact manner, and a power receiving circuit 120 that converts the power receiving signal Vpr received by the power receiving coil 110 into a second DC voltage signal Vdc2, and receives a signal based on the power supply voltage signal Vac from the outside of the mobile printer 1 through non-contact power supply. Thus, the power output by the power transmitting unit 4 is transmitted to the mobile printer 1 in a non-contact manner. Here, the power receiving circuit 120 can also perform at least any one of rectification, smoothing, and voltage value control of the power receiving signal Vpr, and can also perform all of rectification, smoothing, and voltage value control.

[0038] In this way, in the present embodiment, non-contact power supply is performed from the power transmission coil 6 to the power receiving coil 110. In addition, the power generated in the power receiving coil 110 can be transmitted to the battery module 13.

[0039] Here, from the perspective of portability, the mobile printer 1 is required to be small and lightweight. Therefore, in the mobile printer 1, from the perspective of non-contact power reception for realizing non-contact power supply in a small, lightweight, and low-cost manner, it is preferably performed by electromagnetic induction. Specifically, it is preferably a non-contact power supply method that conforms to the wireless power supply standard Qi standard and can supply power of about 15W. In other words, the power reception module 11 of the mobile printer 1 preferably corresponds to the wireless power supply standard Qi standard and can receive power of about 15W. Thus, non-contact power supply to the mobile printer 1 can be performed without compromising the portability of the mobile printer 1. It should be noted that non-contact power supply is sometimes referred to as wireless power supply, wireless charging, wireless transmission method, etc.

[0040] A first DC voltage signal Vdc1 supplied via the first connector CN1 and a second DC voltage signal Vdc2 output from the power reception circuit 120 are input to the power supply switching circuit 12. The power supply switching circuit 12 outputs one of the first DC voltage signal Vdc1 and the second DC voltage signal Vdc2 as a power supply DC voltage signal Vch to the battery module 13 via the second connector CN2. Such a power supply switching circuit 12 can be constituted by, for example, a wire or a circuit.

[0041] That is, when only the first DC voltage signal Vdc1 is input to the power supply switching circuit 12, the power supply switching circuit 12 outputs the first DC voltage signal Vdc1 as the power supply DC voltage signal Vch to the battery module 13. When only the second DC voltage signal Vdc2 is input to the power supply switching circuit 12, the power supply switching circuit 12 outputs the second DC voltage signal Vdc2 as the power supply DC voltage signal Vch to the battery module 13. When both the first DC voltage signal Vdc1 and the second DC voltage signal Vdc2 are input to the power supply switching circuit 12, the power supply switching circuit 12 only selects one of the first DC voltage signal Vdc1 and the second DC voltage signal Vdc2, or combines the first DC voltage signal Vdc1 and the second DC voltage signal Vdc2, and outputs it as the power supply DC voltage signal Vch to the battery module 13.

[0042] The battery module 13 holds charges corresponding to the power supply DC voltage signal Vch based on at least one of the first DC voltage signal Vdc1 and the second DC voltage signal Vdc2, and outputs a battery DC voltage signal Vbat corresponding to the held charge amount from the second connector CN2 to the second power supply circuit 14.

[0043] Here, in the mobile printer 1 in the present embodiment, as Figure 1As shown, the supply DC voltage signal Vch output by the power supply switching circuit 12 is input to the battery module 13, and the battery module 13 outputs the battery DC voltage signal Vbat based on the input supply DC voltage signal Vch to the second power supply circuit 14. That is, the voltage signal output by the power supply switching circuit 12 is input to the second power supply circuit 14 via the battery module 13. Thus, the battery module 13 functions as a stabilization circuit that reduces the possibility of fluctuations in the voltage value of the voltage signal supplied to the second power supply circuit 14, and the operation of the second power supply circuit 14 is stabilized. As such a battery module 13, for example, a lithium-ion secondary battery can be used.

[0044] The second power supply circuit 14 generates a drive voltage signal Vd with a specified voltage value by boosting or bucking the voltage value of the supplied battery DC voltage signal Vbat, and outputs it to the control unit 20. Here, in Figure 1 it is shown that the second power supply circuit 14 generates one drive voltage signal Vd and outputs it to the control unit 20. However, the second power supply circuit 14 can also generate a plurality of drive voltage signals Vd corresponding to the operating voltages of the configurations of the control unit 20 to which the drive voltage signal Vd is supplied, and output them to the corresponding configurations of the control unit 20.

[0045] It should be noted that the electrical configuration of the power supply unit 10 is not limited to Figure 1 the configuration shown. For example, it can also be that the power supply switching circuit 12 that inputs the first DC voltage signal Vdc1 and the second DC voltage signal Vdc2 infers the amount of charge stored in the battery module 13 by detecting the voltage value of the battery DC voltage signal Vbat output by the battery module 13. When it is determined that sufficient charge is stored in the battery module 13, the supplied first DC voltage signal Vdc1 and second DC voltage signal Vdc2 are output to the second power supply circuit 14 without passing through the battery module 13. When it is determined that sufficient charge is not stored in the battery module 13, by outputting the supplied first DC voltage signal Vdc1 and second DC voltage signal Vdc2 to both the battery module 13 and the second power supply circuit 14, the charging of the battery module 13 and the supply of the voltage signal to the second power supply circuit 14 are performed in parallel. Moreover, when neither the first DC voltage signal Vdc1 nor the second DC voltage signal Vdc2 is supplied to the power supply switching circuit 12, the power supply switching circuit 12 can also output the battery DC voltage signal Vbat output by the battery module 13 to the second power supply circuit 14.

[0046] That is, the power supply switching circuit 12 can also switch the voltage signal supplied to the second power supply circuit 14 to the first DC voltage signal Vdc1, or to the second DC voltage signal Vdc2, or to the battery DC voltage signal Vbat, according to the amount of electric charge stored in the battery module 13 and the presence or absence of the supply of the first DC voltage signal Vdc1 and the second DC voltage signal Vdc2.

[0047] The control unit 20 includes a control circuit 21, a non-volatile memory 22, a reception buffer 23, a print head drive control unit 24, a recording paper conveyance control unit 25, and a recording paper cutting control unit 26.

[0048] The control circuit 21 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and other peripheral circuits (not shown). The drive voltage signal Vd output from the power supply unit 10 and print data (not shown) including image information formed on the recording medium are input to the control circuit 21. Further, the control circuit 21 drives using the drive voltage signal Vd as an operation voltage, and controls each unit of the mobile printer 1 including the non-volatile memory 22, the reception buffer 23, the print head drive control unit 24, the recording paper conveyance control unit 25, and the recording paper cutting control unit 26, based on the print data.

[0049] The non-volatile memory 22 includes semiconductor storage elements such as an EEPROM (Electrically Erasable Programmable Read-Only Memory) or a flash memory, and a storage medium such as a hard disk. In the non-volatile memory 22, various data can be rewritten and stored under the control of the control circuit 21.

[0050] The reception buffer 23 includes a temporary storage area such as a RAM, and is constituted by, for example, a semiconductor storage device. In the reception buffer 23, various information such as instructions related to printing, such as print data, is stored under the control of the control circuit 21.

[0051] In the print head drive control unit 24, a first control signal Ctr1 generated by the input control circuit 21 based on print data and a drive voltage signal Vd output by the power supply unit 10 are input. Further, the print head drive control unit 24 generates a head drive signal Sdr based on the drive voltage signal Vd at a timing specified by the first control signal Ctr1, and outputs the head drive signal Sdr to the print head 30. That is, the drive voltage signal Vd output by the power supply unit 10 is supplied to the print head 30 via the control unit 20. In other words, the power supply unit 10 supplies the drive voltage signal Vd to the print head 30 via the control unit 20. The print head 30 includes a plurality of resistors 32 arranged along a direction orthogonal to the conveyance direction of the recording medium. By supplying the head drive signal Sdr output by the print head drive control unit 24 to each of the plurality of resistors 32, the resistors 32 generate heat.

[0052] In the recording paper conveyance control unit 25, a second control signal Ctr2 generated by the input control circuit 21 based on print data and a drive voltage signal Vd output by the power supply unit 10 are input. Further, the recording paper conveyance control unit 25 generates a medium conveyance signal Str based on the drive voltage signal Vd at a timing specified by the second control signal Ctr2, and outputs the medium conveyance signal Str to the conveyance unit 40. That is, the drive voltage signal Vd output by the power supply unit 10 is supplied to the conveyance unit 40 via the control unit 20. In other words, the power supply unit 10 supplies the drive voltage signal Vd to the conveyance unit 40 via the control unit 20. The conveyance unit 40 includes a conveyance motor 42 for conveying the recording medium in the conveyance direction. By supplying the medium conveyance signal Str output by the recording paper conveyance control unit 25 to the conveyance motor 42, the conveyance motor 42 is driven, and along with the driving of the conveyance motor 42, the recording medium is conveyed along a specified conveyance direction.

[0053] In the recording paper cutting control unit 26, a third control signal Ctr3 generated by the input control circuit 21 based on print data and a drive voltage signal Vd output by the power supply unit 10. The recording paper cutting control unit 26 generates a medium cutting signal Sct based on the drive voltage signal Vd at the timing specified by the third control signal Ctr3, and outputs it to the cutting unit 50. That is, the drive voltage signal Vd output by the power supply unit 10 is supplied to the cutting unit 50 via the control unit 20. In other words, the power supply unit 10 supplies the drive voltage signal Vd to the cutting unit 50 via the control unit 20. The cutting unit 50 includes a cutting motor 52 for cutting the recording medium at a specified timing. The medium cutting signal Sct output by the recording paper cutting control unit 26 is supplied to the cutting motor 52, so that the cutting motor 52 is driven. Along with the driving of the cutting motor 52, a movable blade 56 described later is driven in a manner of sliding toward a fixed blade 54 described later. Thereby, the recording medium is pressed against the fixed blade 54, and the recording medium is cut to a specified size.

[0054] Here, in the present embodiment, Figure 1 shows a mechanical part including a print head 30, a conveyance unit 40, and a cutting unit 50 as a mechanical unit UN1.

[0055] In addition, the mechanical unit UN1 may include, for example, a gear train connected to the conveyance motor 42, or one or more of the print head 30 and the like.

[0056] It should be noted that the configuration of the mechanical unit UN1 is not necessarily limited to this example. For example, it may include the conveyance motor 42 and have other configurations.

[0057] In addition, the configuration of the control unit 20 is not necessarily limited to this example. The control unit 20 may include, for example, a wiring board for controlling the conveyance motor 42 and the print head 30, and may also include terminals such as USB terminals that can be connected to external devices.

[0058] It should be noted that this wiring board may be referred to as a control board or the like, for example.

[0059] In the mobile printer 1 configured as described above, based on the drive voltage signal Vd output by the power supply unit 10, the control circuit 21 starts to operate. In addition, the control circuit 21 generates a first control signal Ctr1, a second control signal Ctr2, and a third control signal Ctr3 based on the input print data, and outputs them to the print head drive control unit 24, the recording paper conveyance control unit 25, and the recording paper cutting control unit 26.

[0060] Thus, the recording medium is conveyed along the conveyance direction, and in synchronization with the conveyance of the recording medium, the resistor 32 generates heat. As a result, a desired position on the recording medium is heated, and a desired character, image, or the like is formed on the recording medium. In addition, the recording medium on which the character, image, or the like is formed is cut to a predetermined size. Thus, the recording medium of the predetermined size on which the desired character, image, or the like is formed is discharged from the mobile printer 1.

[0061] As described above, the mobile printer 1 of the present embodiment includes: a print head 30 that prints on a recording medium; a conveyance unit 40 that conveys the recording medium to the print head 30; a cutting unit 50 that cuts the recording medium; a control unit 20 that controls the operations of the print head 30, the conveyance unit 40, and the cutting unit 50; and a power supply unit 10 that supplies a drive voltage signal Vd to the print head 30, the conveyance unit 40, and the cutting unit 50. In addition, through the control of the control unit 20, the conveyance unit 40 conveys the recording medium to the print head 30, and the print head 30 supplies heat to the conveyed recording medium. Thus, a desired image is formed on the recording medium that is thermal paper. After that, the recording medium on which the image is formed is cut to a desired size by the cutting unit 50. As a result, the recording medium of the desired size on which the image is formed is discharged from the mobile printer 1.

[0062] The structure of the mobile printer 1 will be described.

[0063] Then, the structure of the mobile printer 1 will be described.

[0064] Figure 2 It is a perspective view of the mobile printer 1 with the cover 312 closed.

[0065] Figure 3 It is a perspective view of the mobile printer 1 with the cover 312 open.

[0066] Here, in the following description, the X direction, the Y direction, and the Z direction that are orthogonal to each other are used. In addition, in the following description, sometimes the starting point side of the arrow indicating the X direction in the drawing is referred to as the -X side, the front end side is referred to as the +X side, the starting point side of the arrow indicating the Y direction in the drawing is referred to as the -Y side, the front end side is referred to as the +Y side, the starting point side of the arrow indicating the Z direction in the drawing is referred to as the -Z side, and the front end side is referred to as the +Z side.

[0067] As Figure 2 and Figure 3As shown in the figure, the mobile printer 1 has a housing 100. The housing 100 includes: a first surface 101 and a second surface 102, which are arranged opposite to each other in the direction along the Z direction; a third surface 103 and a fourth surface 104, which are arranged opposite to each other in the direction along the Y direction; and a fifth surface 105 and a sixth surface 106, which are arranged opposite to each other in the direction along the X direction. Specifically, in the housing 100, the first surface 101 and the second surface 102 are arranged to face each other in such a way that the first surface 101 is on the -Z side and the second surface 102 is on the +Z side in the direction along the Z direction, the third surface 103 and the fourth surface 104 are arranged to face each other in such a way that the third surface 103 is on the -Y side and the fourth surface 104 is on the +Y side in the direction along the Y direction, and the fifth surface 105 and the sixth surface 106 are arranged to face each other in such a way that the fifth surface 105 is on the +X side and the sixth surface 106 is on the -X side in the direction along the X direction. Thus, the first surface 101, the second surface 102, the third surface 103, the fourth surface 104, the fifth surface 105, and the sixth surface 106 form an accommodation space for accommodating various components inside the housing 100. In addition, the first surface 101 is arranged to be rotatable about the end on the +X side as a rotation axis. Thus, a part of the accommodation space formed by the first surface 101, the second surface 102, the third surface 103, the fourth surface 104, the fifth surface 105, and the sixth surface 106 can be opened and closed. Here, in the following description, the accommodation space formed by the first surface 101, the second surface 102, the third surface 103, the fourth surface 104, the fifth surface 105, and the sixth surface 106 is sometimes referred to as the accommodation space of the housing 100.

[0068] As Figure 3 shown, a roll paper R is accommodated in the accommodation space of the housing 100. The roll paper R is a so-called roll paper formed by winding the aforementioned recording medium. In the present embodiment, it is a thermal roll paper formed by winding a thermal paper as the recording medium. Here, in the following description, the recording medium constituting the roll paper R is sometimes referred to as the recording paper P.

[0069] It should be noted that the roll paper R can also be referred to as a winding body or the like, for example.

[0070] In addition, as Figure 3As shown, a paper pressing roller 48 and a gear 46 are provided at the -X side end of the first surface 101. The paper pressing roller 48 includes a rotating shaft along the Y direction and is arranged to be rotatable. The gear 46 is fixed to the +Y side end of the paper pressing roller 48. When the first surface 101 closes the accommodation space of the housing 100, the paper pressing roller 48 and the gear 46 configured as described above are accommodated in this accommodation space. At this time, the gear 46 passes through the opening 44 of the housing 100 and contacts the conveyance motor 42 accommodated in the accommodation space of the housing 100. Thus, when the conveyance motor 42 is driven by the medium conveyance signal Str output by the control unit 20, this driving force is transmitted to the paper pressing roller 48 via the gear 46, and the paper pressing roller 48 is driven.

[0071] In addition, as Figure 2 and Figure 3 shown, the operation unit UI is located on the sixth surface 106 of the housing 100. The operation unit UI functions as a user interface for receiving operation information of the user. In addition, by the user operating the operation unit UI, the mobile printer 1 performs a prescribed action including a printing process.

[0072] It should be noted that the user can also be referred to as a customer, etc.

[0073] In addition, a first connector CN1, which is set to be at least partially exposed outside the housing 100, is located on the third surface 103 of the housing 100. As described above, the first connector CN1 is a USB-Type-C socket connector that supplies a first DC voltage signal Vdc1 as driving power to the mobile printer 1. In addition, when USB communication conforming to the USB communication standard of USB-Type-C can be performed with the first connector CN1, the mobile printer 1 is communicably connected to an external device such as a host computer via the first connector CN1. Thus, in addition to the operation of the operation unit UI described above, the user can also cause the mobile printer 1 to perform a prescribed action including a printing process by operating an external device communicably connected via the first connector CN1.

[0074] Here, in the present embodiment, the housing 100 is composed of a housing 311 and a cover 312.

[0075] In addition, in the mobile printer 1, a detachable belt clip 313 is provided on the second surface 102 of the housing 311.

[0076] The belt clip 313 has a mounting portion that can be detachably mounted on a prescribed portion of the user or the user's clothes, etc. This prescribed portion can also be, for example, a belt or clothes such as pants other than a belt.

[0077] Regarding the configuration of detachably fixing the second surface 102 of the housing 311 and the belt clip 313, there is no particular limitation. For example, as a configuration that can be easily detached and attached without using tools, a configuration using a magnetic connector or a snap member can also be used. The magnetic connector utilizes magnetism, and the snap member uses an insertion that utilizes the elasticity of resin, etc. As the magnetic connector, for example, a combination of magnets provided on both sides of the housing 311 and the belt clip 313 can also be used, or a combination of a magnet provided on one side of the housing 311 and a metal provided on the other side can also be used.

[0078] It should be noted that the housing 311 and the belt clip 313 can also be fixedly connected in a non-detachable manner, for example, by screw fastening that requires tools.

[0079] Here, there is no particular limitation on the position where the belt clip 313 is arranged relative to the housing 311, and various positions can also be adopted.

[0080] In the present embodiment, in the X direction, the operation unit UI is arranged on one side of the housing 311, and the belt clip 313 is arranged on the same side as the operation unit UI. The operation unit UI can also be an operation panel operated by the user, for example.

[0081] It should be noted that as another example, when the operation unit UI is arranged on the fourth surface 104 of the cover 312, the belt clip 313 can also be arranged on the other side in the X direction.

[0082] Here, the mobile printer 1 according to the present embodiment is a printing device driven by a battery such as a battery pack, and is assumed to be used in various scenarios.

[0083] For example, it is assumed that the user temporarily takes the mobile printer 1 outside a store or the like, or uses it outdoors for most of the time. In this case, it is desired that the user use the mobile printer 1 hands-free, and a scenario where the mobile printer 1 is attached to the user's belt or the like is assumed.

[0084] Then, an example of the internal structure of the mobile printer 1 will be described.

[0085] Figure 4A It is a cross-sectional view showing an example of the internal structure of the mobile printer 1. In Figure 4A it shows Figure 2 and Figure 3 the same XYZ.

[0086] As Figure 4AAs shown, in the accommodation space of the housing 100, there are accommodated a first wiring board 80, a paper pressing roller 48, a print head 30, a cutting motor 52, a fixed blade 54, a movable blade 56, a power receiving module 11, and a roll paper accommodation portion 60.

[0087] It should be noted that the roll paper accommodation portion 60 may also be referred to as a winding body accommodation portion or the like, for example.

[0088] In addition, regarding the wiring connected to the power receiving coil 110 of the power receiving module 11, Figure 4A the illustration thereof is omitted, and Figure 4B is used for explanation.

[0089] The first wiring board 80 is located in the +X side region of the accommodation space of the housing 100 and is near the fifth surface 105 of the housing 100. Various circuits and electronic components including the power supply switching circuit 12 included in the aforementioned power supply unit 10, the second power supply circuit 14, the control circuit 21 included in the control unit 20, the non-volatile memory 22, the reception buffer 23, the print head drive control unit 24, the recording paper conveyance control unit 25, and the recording paper cutting control unit 26 are provided on the first wiring board 80. That is, the control unit 20 is provided on the first wiring board 80. It should be noted that in the present embodiment, the case where the first wiring board 80 is constituted by one board is described, but the first wiring board 80 may also be configured to include a plurality of boards.

[0090] The paper pressing roller 48, the print head 30, the cutting motor 52, the fixed blade 54, and the movable blade 56 are located in the -X side region of the accommodation space of the housing 100 and are near the sixth surface 106 of the housing 100.

[0091] Specifically, the paper pressing roller 48 is located at the -X side end of the first surface 101 and is provided such that the rotation axis is substantially parallel to the Y direction. In addition, the print head 30 is provided on the -X side of the paper pressing roller 48 so as to face the paper pressing roller 48. Further, the recording paper P wound as a roll paper R is clamped by the paper pressing roller 48 and the print head 30 disposed opposite to each other.

[0092] Here, as described above, the paper pressing roller 48 is driven along with the driving of the conveying motor 42. Therefore, the recording paper P held between the paper pressing roller 48 and the print head 30 is conveyed in a manner of being pulled out from the roll paper R along with the driving of the paper pressing roller 48. In addition, the recording paper P pulled out from the roll paper R is discharged to the outside of the mobile printer 1 from the discharge port 160 located on the +Z side of the housing 100. That is, the conveying motor 42, the gear 46, and the paper pressing roller 48 pull out the recording paper P from the roll paper R and convey the recording paper P to the discharge port 160 via the print head 30. The configuration including the conveying motor 42, the gear 46, and the paper pressing roller 48 corresponds to the aforementioned conveying unit 40. In other words, the conveying unit 40 pulls out the recording paper P from the roll paper R and conveys the recording paper P to the print head 30.

[0093] The fixed blade 54 and the movable blade 56 are arranged on the upstream side of the paper pressing roller 48 and the print head 30 and on the downstream side of the discharge port 160 along the conveying direction of the recording paper P. At this time, the conveying path of the recording paper P is located between the fixed blade 54 and the movable blade 56. Specifically, the fixed blade 54 and the movable blade 56 are located on the +Z side of the paper pressing roller 48 and the print head 30 and on the -Z side of the discharge port 160. At this time, the fixed blade 54 is located on the +X side of the conveying path of the recording paper P, and the movable blade 56 is located on the -X side of the conveying path of the recording paper P.

[0094] In the present embodiment, the conveying path of the recording paper P is set from the time point when the recording paper P passes through the print head 30 to the time point when it exits from the discharge port 160.

[0095] In addition, the cutting motor 52 is located near the movable blade 56. The cutting motor 52 is driven by being supplied with the medium cutting signal Sct output by the recording paper cutting control unit 26. Along with the driving of the cutting motor 52, the movable blade 56 slides toward the fixed blade 54 in a manner of moderately rubbing against the fixed blade 54. As a result, the recording paper P conveyed along the conveying path between the fixed blade 54 and the movable blade 56 is pressed against the fixed blade 54. As a result, the recording paper P is cut. After that, the cut recording paper P is discharged to the outside of the mobile printer 1 via the discharge port 160. That is, the cutting motor 52, the fixed blade 54, and the movable blade 56 cut the recording paper P conveyed by the conveying unit 40. The configuration including the cutting motor 52, the fixed blade 54, and the movable blade 56 corresponds to the aforementioned cutting unit 50. In addition, the cutting unit 50 cuts the recording paper P by pressing the movable blade 56 against the fixed blade 54.

[0096] Here, when the cutting unit 50 cuts the recording paper P, the recording paper P only needs to be pressed against either the fixed blade 54 or the movable blade 56. Therefore, the cutting unit 50 can also be configured to press the recording paper P against either the fixed blade 54 or the movable blade 56 by applying a force by a user or the like. That is, the cutting unit 50 can also cut the recording paper P when the recording paper P is pressed against the fixed blade 54 or the movable blade 56. Further, when the cutting unit 50 has this configuration, the cutting unit 50 can also be configured to include only either the fixed blade 54 or the movable blade 56.

[0097] Here, the fixed blade 54 and the movable blade 56 repeatedly cut the recording paper P. Therefore, it is required that the fixed blade 54 and the movable blade 56 maintain high cutting performance even when repeatedly pressed against the recording paper P. Such fixed blade 54 and movable blade 56 are preferably made of a metal that is suitable for the strength and properties of the blade and is easy to process the blade edge suitable for the blade. For example, it is preferably made of iron, steel, stainless steel, etc. In addition, as long as the fixed blade 54 and the movable blade 56 can cut the recording paper P when pressed against the recording paper P, the blade edges of the fixed blade 54 and the movable blade 56 can be linear, and can also be serrated. By making the blade edges of the fixed blade 54 and the movable blade 56 linear, the possibility of generating paper dust on the cut surface of the recording paper P is reduced. On the other hand, by making the blade edge of the fixed blade 54 or the movable blade 56 serrated, the fixed blade 54 or the movable blade 56 can cut the recording paper P with a smaller force, improving the convenience for the user.

[0098] It should be noted that, for example, the mobile printer 1 can also be configured to include a manual cutting machine near the discharge port 160.

[0099] The roll paper R wound with the recording paper P is accommodated in the roll paper accommodating portion 60 in an inserted manner. Such a roll paper accommodating portion 60 includes a partition portion 61, and is located between the first wiring board 80 and the paper pressing roller 48, the print head 30, the cutting motor 52, the fixed blade 54, and the movable blade 56 in the direction along the X direction. Specifically, the roll paper accommodating portion 60 is composed of a first partition portion 61a, a second partition portion 61b, and a third partition portion 61c that are part of the partition portion 61. Further, in a state where the roll paper R is accommodated, the roll paper accommodating portion 60 is disposed in the accommodation space of the housing 100 such that the first partition portion 61a, which is part of the partition portion 61, is located between the accommodated roll paper R and the first wiring board 80, the second partition portion 61b, which is part of the partition portion 61, is located between the accommodated roll paper R and the cutting motor 52, and the third partition portion 61c, which is part of the partition portion 61, is located between the accommodated roll paper R and the second surface 102.

[0100] Here, within the partition portion 61 included in the roll paper accommodating portion 60, a partition portion 61c located between the accommodated roll paper R and the cutting motor 52 forms a part of the conveyance path for conveying the recording paper P. Thereby, miniaturization of the mobile printer 1 can be achieved.

[0101] In Figure 4A is shown an axis R1 along the Y direction, which is the axis of rotation of the roll paper R. The roll paper R rotates about the axis R1, and thereby, the recording paper P is pulled out from the roll paper R.

[0102] The power receiving module 11 is provided on the cover body 312.

[0103] The power receiving coil 110 receives the magnetic field Pmg of the high-frequency power transmission signal Vpt output based on the power transmission unit 4. That is, a magnetic field Pmg is formed around the power receiving coil 110.

[0104] In addition, as Figure 4A shown, the housing 100 has a battery accommodating portion 70 for accommodating the battery module 13. The battery accommodating portion 70 is a recessed space, which is located on the +X side relative to the power receiving module 11 and on the -Z side of the first wiring substrate 80, and opens on the -Z side of a part of the second surface 102. That is, the battery accommodating portion 70 is provided outside the housing 100. Therefore, there is the second surface 102 forming the battery accommodating portion 70 between the battery module 13 accommodated in the battery accommodating portion 70, the first wiring substrate 80 accommodated in the accommodation space of the housing 100, and the roll paper accommodating portion 60. In other words, there is the second surface 102 between the battery module 13 and the first wiring substrate 80, and there is the second surface 102 between the battery module 13 and the roll paper accommodating portion 60.

[0105] In addition, a part of the second connector CN2 provided on the first wiring substrate 80 is exposed on the +Z side surface of the battery accommodating portion 70. Further, when the battery module 13 is accommodated in the battery accommodating portion 70, an electrode (not shown) of the battery module 13 is electrically connected to the second connector CN2. Thereby, the first wiring substrate 80 and the battery module 13 are electrically connected via the second connector CN2.

[0106] As described above, in the mobile printer 1, at least a part of a power supply unit 10 including a roll paper accommodating unit 60, a print head 30, a conveyance unit 40, and a power receiving module 11, and a control unit 20 provided on a first wiring board 80 are accommodated in an accommodation space formed inside a housing 100, and a battery module 13 is accommodated in a battery accommodating unit 70 provided outside the housing 100. In other words, the housing 100 includes a first surface 101, a second surface 102, a third surface 103, a fourth surface 104, a fifth surface 105, and a sixth surface 106, and is provided to cover at least a part of the roll paper accommodating unit 60, the print head 30, the conveyance unit 40, a cutting unit 50, the power supply unit 10, and the control unit 20. Thereby, the housing 100 reduces the possibility of an impact being applied from the outside to the roll paper accommodating unit 60, the print head 30, the conveyance unit 40, the cutting unit 50, and the power supply unit 10 of the mobile printer 1.

[0107] In such a mobile printer 1, among the roll paper accommodating unit 60, the print head 30, the conveyance unit 40, the cutting unit 50, and the control unit 20 accommodated in the accommodation space of the housing 100, the control unit 20 is located near the fifth surface 105, the print head 30, the conveyance unit 40, and the cutting unit 50 are located near the sixth surface 106, and in the direction along the direction from the fifth surface 105 toward the sixth surface 106, the roll paper accommodating unit 60 is located between the control unit 20 and the print head 30, the conveyance unit 40, and the cutting unit 50. That is, with respect to the roll paper accommodating unit 60, the conveyance unit 40, and the control unit 20, they are located in the order of the control unit 20, the roll paper accommodating unit 60, and the conveyance unit 40 in the direction along the direction from the fifth surface 105 toward the sixth surface 106. With respect to the roll paper accommodating unit 60, the cutting unit 50, and the control unit 20, they are located in the order of the control unit 20, the roll paper accommodating unit 60, and the cutting unit 50 in the direction along the direction from the fifth surface 105 toward the sixth surface 106. With respect to the roll paper accommodating unit 60, the print head 30, and the control unit 20, they are located in the order of the control unit 20, the roll paper accommodating unit 60, and the print head 30 in the direction along the direction from the fifth surface 105 toward the sixth surface 10. In other words, the shortest distance between the control unit 20 and the fifth surface 105 is shorter than the shortest distance between the control unit 20 and the sixth surface 106, the shortest distance between the conveyance unit 40 and the fifth surface 105 is longer than the shortest distance between the conveyance unit 40 and the sixth surface 106, the shortest distance between the cutting unit 50 and the fifth surface 105 is longer than the shortest distance between the cutting unit 50 and the sixth surface 106, and the shortest distance between the print head 30 and the fifth surface 105 is longer than the shortest distance between the print head 30 and the sixth surface 106.

[0108] Accordingly, the head drive signal Sdr, the medium conveyance signal Str, and the medium cut-off signal Sct output by the control unit 20 are all transmitted from the fifth surface 105 side to the sixth surface 106 side in the accommodation space of the housing 100. Accordingly, the possibility of noise being superimposed on the head drive signal Sdr, the medium conveyance signal Str, and the medium cut-off signal Sct is reduced, and the possibility of malfunction occurring in the mobile printer 1 is reduced by the mutual cancellation of the head drive signal Sdr, the medium conveyance signal Str, and the medium cut-off signal Sct.

[0109] Figure 4B FIG. is an example showing a schematic configuration of the mobile printer 1 in a state where the lid 312 is opened with respect to the housing 311. It should be noted that in Figure 4B shows Figure 2 and Figure 3 the same XYZ.

[0110] In Figure 4B a schematic configuration relationship of a part of the components of the mobile printer 1 is shown. Figure 4B The arranged positions of the respective components shown are schematic positions for explanation and are not necessarily precise.

[0111] It should be noted that in the example of Figure 4A in order to avoid complication of the drawing, the drawing of a part of the components shown in Figure 4B is omitted, however, the components shown in Figure 4B are also provided in Figure 4A FIG.

[0112] In the housing 311, a control unit 20, a mechanical unit UN1, a roll paper R are provided, and a battery module 13 is installed.

[0113] The -Z side surface of the housing 311 is the second surface 102, and the +Z side surface of the housing 311 is the seventh surface 511.

[0114] The +Z side surface of the lid 312 is the first surface 101, and the -Z side surface of the lid 312 is the eighth surface 521.

[0115] Here, in a state where the lid 312 is closed with respect to the housing 311, the seventh surface 511 of the housing 311 and the eighth surface 521 of the lid 312 face each other.

[0116] It should be noted that the +Z side seventh surface 511 of the housing 311 is, for example, a virtual plane. Actually, based on the perspective of observing the housing 311 in the direction from the +Z side to the -Z side, there are internal structural components of the housing 311 and it becomes an uneven structure.

[0117] The lid body 312 has a first end portion E1 as the end portion on the -X side and a second end portion E2 as the end portion on the +X side.

[0118] In the present embodiment, a first rotatable portion 411 is provided at the second end portion E2 of the lid body 312, and the lid body 312 is supported by the first rotatable portion 411 so as to be rotatable relative to the housing 311. The first rotatable portion 411 is provided, for example, inside the housing 311.

[0119] Here, the first rotatable portion 411 may also be a hinge or the like, for example.

[0120] In the present embodiment, the power receiving module 11 is disposed on the eighth surface 521 on the -Z side of the lid body 312.

[0121] The mobile printer 1 includes a first wiring 412 that electrically connects the power receiving module 11 and the battery module 13.

[0122] In the present embodiment, the first wiring 412 extends along the lid body 312 and is pulled to the battery module 13 inside the housing 311 through the vicinity of the first rotatable portion 411. In the present embodiment, the first wiring 412 is disposed to be housed inside the housing 100.

[0123] In the present embodiment, as Figure 4B shown, with the lid body 312 in the open position, it is possible to take out the roll paper R from the roll paper accommodating portion 60 and mount the roll paper R on the roll paper accommodating portion 60. Further, as Figure 4A shown, with the lid body 312 in the closed position, a discharge port 160 is formed.

[0124] Figure 4C is a diagram showing an example of the back side of the mobile printer 1. It should be noted that in Figure 4C it shows the same XYZ as Figure 2 and Figure 3 .

[0125] Here, in the present embodiment, for the sake of convenience of explanation, the second surface 102 of the housing 311 on the side where the tape holder 313 is provided is referred to as the back side, but it is not necessarily limited thereto.

[0126] In Figure 4C it shows the second surface 102 of the housing 311 of the mobile printer 1, the tape holder 313, and the battery module 13 housed in the battery accommodating portion 70.

[0127] Further, in Figure 4C it shows a first connection position 313a indicating the position where the second surface 102 of the housing 311 of the mobile printer 1 is connected to the tape holder 313.

[0128] Here, in the present embodiment, a configuration is shown in which the battery module 13 is provided on the second surface 102 on the -Z side of the mobile printer 1. However, as another example, a configuration in which the battery module 13 is provided on the third surface 103 on the -Y side or the fourth surface 104 on the +Y side of the mobile printer 1 may also be adopted.

[0129] In the present embodiment, the battery module 13 is detachable from the battery housing portion 70 of the housing 311 of the mobile printer 1. In the present embodiment, the battery module 13 is configured to be detachable from the battery housing portion 70 in a specified insertion / removal direction.

[0130] When the battery module 13 is installed in the battery housing portion 70, the circuit terminals of the battery module 13 are electrically connected to the circuit terminals inside the mobile printer 1.

[0131] Figure 4D It is a diagram showing an example of the arrangement position of the power receiving module 11 when using the protective cover 321. It should be noted that in Figure 4D , the same XYZ as Figure 2 and Figure 3 is shown.

[0132] In Figure 4D , an example of the situation when observing the cover 312 from the perspective of observing the +Z side from the -Z side is shown.

[0133] The power receiving module 11 is provided on the eighth surface 521 of the cover 312.

[0134] The power receiving module 11 may also be attached to the eighth surface 521 of the cover 312 by an adhesive or the like. In this case, as an example, the power receiving coil 110 constituting the power receiving module 11 may also be attached to the eighth surface 521 of the cover 312.

[0135] In addition, in the example of Figure 4D , the situation where the protective cover 321 covering the power receiving module 11 is provided is shown. In this example, the protective cover 321 is made of a transparent member and does not contact the power receiving module 11. In the present embodiment, the protective cover 321 is used to protect the wiring.

[0136] In Figure 4D , the 1a wiring 412a, which is a part of the first wiring 412 exposed to the outside and connected to the power receiving module 11, is shown. In this example, the 1a wiring 412a is also covered by the protective cover 321 and does not contact the protective cover 321.

[0137] Here, various forms such as the shape or material of the protective cover 321 may be adopted.

[0138] It should be noted that the protective cover 321 may not necessarily be provided.

[0139] A specific example of the structure of the power receiving module 11 will be described.

[0140] Then, by using Figure 5 A specific example of the structure of the power receiving module 11 will be described.

[0141] Figure 5 FIG. is a diagram showing an example of the structure of the power receiving module 11. As Figure 5 shown, the power receiving module 11 includes a power receiving coil 110 and a power receiving circuit 120.

[0142] The power receiving coil 110 receives, in a non-contact manner, a magnetic field Pmg corresponding to a power transmission signal Vpt based on a power supply voltage signal Vac from a power transmission unit 4 provided outside the mobile printer 1 as a power receiving signal Vpr. Such a power receiving coil 110 has an annular coil 111 that transmits the power receiving signal Vpr corresponding to the magnetic field Pmg, and a molding member 112 provided to cover the annular coil 111.

[0143] The annular coil 111 includes a conductor such as copper formed in an annular shape, and a third end TM1 that is one end of the conductor and a fourth end TM2 that is the other end are electrically connected to the power receiving circuit 120. In addition, a current corresponding to the magnetic field Pmg generated around the annular coil 111 flows in the annular coil 111. That is, a potential difference corresponding to this current is generated between the third end TM1 and the fourth end TM2 of the annular coil 111. The power receiving coil 110 outputs the potential difference generated between the third end TM1 and the fourth end TM2 of the annular coil 111 to the power receiving circuit 120 as the power receiving signal Vpr.

[0144] In addition, the molding member 112 provided to cover the annular coil 111 maintains the shape of the annular coil 111 and functions as an insulator, which reduces the possibility of a short circuit abnormality occurring between the components of the mobile printer 1 and the annular coil 111 due to impacts generated by contact between the annular coil 111 and the various parts of the mobile printer 1. As a result, the possibility of a change in the characteristics of the annular coil 111 is reduced, and the power receiving sensitivity based on the magnetic field Pmg of the power receiving coil 110 is improved.

[0145] Such a power receiving coil 110 includes: a coil region 114 where the annular coil 111 that transmits the power receiving signal Vpr is located; a coil inner region 113 located inside the coil region 114; and a coil outer region 115 located outside the coil region 114.

[0146] The power receiving circuit 120 converts the power receiving signal Vpr output from the power receiving coil 110 into a second DC voltage signal Vdc2 and outputs it. Specifically, the power receiving circuit 120 includes a voltage conversion circuit 121, a connector 122, and a second wiring board 123 on which the voltage conversion circuit 121 and the connector 122 are provided.

[0147] The voltage conversion circuit 121 includes a rectifying circuit that rectifies the high-frequency power receiving signal Vpr, a smoothing circuit that smooths the rectified voltage output by the rectifying circuit, and a voltage conversion circuit that outputs the smoothed voltage output by the smoothing circuit as the second DC voltage signal Vdc2 by changing the voltage value to a specified voltage value. In addition, the second DC voltage signal Vdc2 output by the voltage conversion circuit 121 is transmitted in the second wiring board 123 and output from the power receiving module 11 via the connector 122.

[0148] As described above, in the power receiving module 11, the power receiving coil 110 receives a voltage signal based on the magnetic field Pmg, and the power receiving module 11 outputs the power receiving signal Vpr corresponding to the magnetic field Pmg to the power receiving circuit 120. The power receiving circuit 120 generates the second DC voltage signal Vdc2 with a specified voltage value based on the power receiving signal Vpr output by the power receiving coil 110 and outputs it from the connector 122.

[0149] The power receiving module 11 configured in this way receives the magnetic field Pmg output by the power transmission unit 4 provided outside the mobile printer 1 in a non-contact manner.

[0150] An example of the alignment between the power receiving coil 110 and the power transmission coil 6 will be described.

[0151] Using Figure 6A and Figure 6B , an example of the alignment between the power receiving coil 110 and the power transmission coil 6 is shown. In this example, to simplify the illustration, a case where the shape of the coil is disk-shaped is illustrated, but the shape of the coil can also be any shape.

[0152] Figure 6A is an exploded view showing an example of the power receiving coil 110.

[0153] In this example, the power receiving coil 110 is formed by overlapping a first magnetic array 611, a first coil 612, a magnetic shielding member 613, and a metal shielding member 614.

[0154] Here, the first coil 612 is a planar coil in which a conductor is wound in a concentric circle shape.

[0155] The magnetic shielding member 613 is, for example, made of a material such as iron and is a planar plate.

[0156] The metal shielding member 614 is, for example, made of copper and is a planar plate.

[0157] The magnetic shielding member 613 and the metal shielding member 614 have the same or approximately the same planar shape, and the first coil 612 has the planar shape included in the regions of the planar shapes of the magnetic shielding member 613 and the metal shielding member 614.

[0158] The first magnetic array 611 has a circumferential planar shape along a circumference that is more outside than the region of the planar shape of the first coil 612. In this example, instead of being connected at one part of the circumference, it has two ends at that part.

[0159] For example, the unconnected region of such a first magnetic array 611 can also be used for the coil wire or the wiring connected to the wire to pass through.

[0160] In this example, the first magnetic array 611 is disposed at a position adjacent to the first coil 612. It should be noted that the magnet of the first coil 612 and the first magnetic array 611 can also be separated, for example.

[0161] Figure 6B It is a diagram showing an example of the alignment between the power receiving coil 110 and the power transmitting coil 6.

[0162] In Figure 6B it is shown in a simplified diagram, showing the schematic appearance of the power receiving coil 110 and the power transmitting coil 6 for explanation.

[0163] In addition, in Figure 6B they are shown separated to the extent that they do not overlap in the diagram in order to easily observe the power receiving coil 110 and the power transmitting coil 6.

[0164] It should be noted that in this embodiment, the configuration of the power transmitting coil 6 is shown to be the same as that of the power receiving coil 110, but other configurations can also be adopted.

[0165] In Figure 6B an example of the arrangement relationship between the power receiving coil 110 and the power transmitting coil 6 is shown.

[0166] The power transmitting coil 6 is constituted by combining the second coil 621 and the second magnetic array M1, etc. The second coil 621 and the second magnetic array M1 in the power transmitting coil 6 correspond to the first coil 612 and the first magnetic array 611 in the power receiving coil 110.

[0167] When non - contact power supply is performed from the power transmitting coil 6 to the power receiving coil 110, the planar surface of the power transmitting coil 6 and the planar surface of the power receiving coil 110 are opposed to each other.

[0168] In addition, in this example, the first magnetic array 611 of the power receiving coil 110 and the second magnetic array M1 of the power transmitting coil 6 are positioned such that they exactly face each other, and are positioned by the force of magnetic attraction between the two. As a result, the first coil 612 of the power receiving coil 110 and the second coil 621 of the power transmitting coil 6 are positioned to exactly face each other.

[0169] Here, as a configuration for aligning the power receiving coil 110 and the power transmitting coil 6, other configurations may also be adopted.

[0170] It should be noted that if non-contact charging is performed without aligning the power transmitting coil 6 and the power receiving coil 110, there may be a situation where the coil positions do not match each other, and there may be a situation where power loss increases and heat is generated due to the positional deviation between the coils.

[0171] In response to this, in the case where the power transmitting coil 6 and the power receiving coil 110 are aligned by magnets, for example, even if the user does not pay attention to the positions of the coils with respect to each other, the positional relationship between the coils can be made the optimal configuration.

[0172] As described above, in the mobile printer 1 according to the present embodiment, by providing the power receiving coil 110 on the side of the lid 312, it is possible to eliminate the restrictions on the arrangement of the power receiving coil 110. For example, it is possible to eliminate the arrangement restrictions when the battery is arranged in the housing 311.

[0173] Here, in the mobile printer 1 according to the present embodiment, for example, not only the usage mode in the state of being placed on the ground, but also the usage mode in the state of being attached to pants or the like using the belt clip 313 is envisioned. Therefore, in the case of non-contact power supply to the mobile printer 1, assuming that the power receiving coil 110 is provided on the second surface 102 of the housing 311, it is possible to consider the possibility of interference between the belt clip 313 and the power receiving coil 110. However, in the present embodiment, such a problem can be eliminated.

[0174] It should be noted that the posture of using the mobile printer 1 is not particularly limited. For example, it may be placed on a table or the like with the second surface 102 on which the battery is provided as the lower surface, or it may be used in a posture with the sixth surface 106 or the fifth surface 105 of the mobile printer 1 as the upper surface in the state where the belt clip 313 is used.

[0175] As a configuration example, the printing device includes a housing 311, a lid 312, a battery accommodation portion 70, a battery, a belt clip 313, and a power receiving module 11.

[0176] Here, in the present embodiment, the small mobile printer 1 is an example of the printing device. In addition, in the present embodiment, the battery module 13 is an example of the battery.

[0177] The housing 311 has a toilet paper accommodating portion 60 for accommodating toilet paper.

[0178] The lid 312 is connected to the housing 311 via a first rotatable portion 411 and opens and closes the toilet paper accommodating portion 60.

[0179] A battery accommodating portion 70 is formed in the housing 311.

[0180] The battery is accommodated in the battery accommodating portion 70.

[0181] A tape holder 313 is attached to the housing 311.

[0182] The power receiving module 11 receives a power transmission signal Vpt from the outside through non-contact power supply and supplies power to the battery.

[0183] The housing 311 has: a seventh surface 511, which is the first surface of the housing where the lid 312 is formed; and a second surface 102, which is the second surface of the housing and is different from the seventh surface 511, which is the first surface of the housing.

[0184] The tape holder 313 is provided on the second surface of the housing.

[0185] The power receiving module 11 is arranged between the lid 312 and the battery.

[0186] Therefore, in the printing apparatus, the power receiving module 11 is mounted on the lid 312 side with respect to the battery, the power receiving coil 110 is provided, and a power receivable area is provided on the lid 312 side, so that the configuration restriction of the tape holder 313 can be eliminated.

[0187] Here, the power receivable area is an area where power can be received non-contactly from the power transmission coil 6 through the power receiving coil 110 of the power receiving module 11. For example, it may be an area near the first surface 101 of the lid 312 on the +Z side.

[0188] It should be noted that the toilet paper R accommodated in the toilet paper accommodating portion 60 is pulled out to become the recording paper P.

[0189] In addition, in the present embodiment, when the lid 312 is opened with respect to the housing 311, there is also an opening 44 for pulling out the recording paper P from the toilet paper.

[0190] In addition, in the present embodiment, the power receiving module 11, or at least the power receiving coil 110 of the power receiving module 11 is provided inside the lid 312, or on the outer surface on the Z side, or on the outer surface on the +Z side. In this case, it can also be considered that the power receiving module 11, or at least the power receiving coil 110 of the power receiving module 11 and the lid 312 are integrated.

[0191] The battery may also be arranged on the +Z side of the housing 311, for example.

[0192] When power is supplied from the power transmission coil 6 to the power reception coil 110, for example, it can be configured such that the power transmission coil 6 or the unit portion including the power transmission coil 6 does not contact the outer surface of the cover 312, or it can also be configured such that they are in contact. The distance between the power transmission coil 6 and the power reception coil 110 is configured to be a distance at which appropriate power transmission and reception can be performed.

[0193] It should be noted that the first surface 101 of the cover 312 can be, for example, planar or substantially planar, or it can be bent to such an extent that there is no obstacle in practical use.

[0194] Similarly, the eighth surface 521 of the cover 312 can be, for example, planar or substantially planar, or it can be bent to such an extent that there is no obstacle in practical use.

[0195] As a specific example, in the cover 312, the surface on which the power reception coil 110 is provided can be at least the portion where the power reception coil 110 is disposed is planar or substantially planar.

[0196] As a structural example, in the printing device, the power reception module 11 is provided on the cover 312.

[0197] Therefore, in the printing device, by mounting the power reception module 11 on the cover 312, the power-receivable area can be made close to the power reception coil 110, and thus, the charging efficiency can be improved.

[0198] It should be noted that it is not necessarily required to use the structure related to this structural example.

[0199] As a structural example, in the printing device, the first wiring 412 connecting the power reception module 11 and the battery passes through the first rotation movable portion 411 of the cover 312 and the housing 311.

[0200] The shortest distance between the battery and the first rotation movable portion 411 is shorter than the shortest distance between the roll paper accommodating portion 60 and the first rotation movable portion 411.

[0201] Therefore, in the printing device, since the battery is close to the first rotation movable portion 411, the first wiring 412 between the power reception coil 110 of the power reception module 11 and the battery can be shortened, and transmission loss can be suppressed.

[0202] It should be noted that the power reception coil 110 and the battery are connected by the first wiring 412 passing through the first rotation movable portion 411.

[0203] For example, the battery and the power reception coil 110 can also be provided at a position closer to the first rotation movable portion 411 than the roll paper accommodating portion 60, and thus, the first wiring 412 between the power reception coil 110 of the power reception module 11 and the battery can be shortened, and transmission loss can be suppressed.

[0204] It should be noted that it is not necessarily required to use the configuration involved in this configuration example.

[0205] As a configuration example, in a printing device, a first wiring 412 connecting a power receiving module 11 and a battery passes through a first rotatable portion 411 of a cover 312 and a housing 311.

[0206] The cover 312 has: a first end E1 that forms a discharge port 160 capable of discharging a roll paper together with an end of the housing 311; and a second end E2 that is in contact with the first rotatable portion 411.

[0207] The shortest distance between the second end E2 and the power receiving module 11 is shorter than the shortest distance between the first end E1 and the power receiving module 11.

[0208] Therefore, in the printing device, the battery is relatively close to the first rotatable portion 411, the first wiring 412 between the power receiving coil 110 of the power receiving module 11 and the battery can be shortened, and transmission loss can be suppressed.

[0209] In addition, in the printing device, an increase in the torque when the housing 311 is opened and closed due to the arrangement of the power receiving module 11 can be suppressed.

[0210] It should be noted that it is not necessarily required to use the configuration involved in this configuration example.

[0211] As a configuration example, in a printing device, the shortest distance from the discharge port 160 to the axis R1 of the roll paper is shorter than the shortest distance from the discharge port 160 to the power receiving module 11.

[0212] Therefore, in the printing device, the roll paper accommodating portion 60 is relatively close to the discharge port 160, the paper conveyance path can be shortened, and miniaturization of the device can be achieved.

[0213] It should be noted that in this embodiment, the roll paper accommodating portion 60 includes the entire space for accommodating the roll paper.

[0214] For example, the length of the conveyance path may also be shorter than the distance from the first end E1 of the cover 312 to the power receiving coil 110. Thus, by shortening the length of the conveyance path, conveyance failures can be suppressed.

[0215] It should be noted that it is not necessarily required to use the configuration involved in this configuration example.

[0216] As a configuration example, in a printing device, a battery accommodating portion 70 is formed on a second surface 102 that is the second surface of the housing.

[0217] The cover body 312 has: a first surface 101, which is the first surface of the cover body where the power-receiving area is disposed; and an eighth surface 521, which is the second surface of the cover body where the power-receiving coil 110 of the power-receiving module 11 is provided.

[0218] The printing apparatus further includes: a first wiring 412 that connects the power-receiving module 11 and the battery; and a protective cover body 321 that is connected to the eighth surface 521, which is the second surface of the cover body.

[0219] The first wiring 412 is disposed between the cover body 312 and the protective cover body 321.

[0220] Therefore, in the printing apparatus, it is possible to prevent the roll paper accommodated in the roll paper accommodating portion 60 from touching the first wiring 412, thereby protecting the first wiring 412 from being affected.

[0221] It should be noted that the configuration related to this configuration example may not necessarily be used.

[0222] As a configuration example, in the printing apparatus, there are provided: a control unit 20 that receives power supply from the battery and outputs a signal; and a mechanical unit UN1 that is driven according to the signal output from the control unit 20.

[0223] The mechanical unit UN1 includes at least a conveyance motor 42 that conveys the recording paper P pulled out from the roll paper.

[0224] The roll paper accommodating portion 60 is disposed between the control unit 20 and the mechanical unit UN1.

[0225] In a state where the cover body 312 is closed, the shortest distance between the power-receiving coil 110 of the power-receiving module 11 and the mechanical unit UN1 is greater than the shortest distance between the power-receiving coil 110 and the control unit 20.

[0226] Therefore, in the printing apparatus, by disposing the first wiring 412 on the control unit 20 side, it is possible to reduce the influence of the roll paper accommodated in the roll paper accommodating portion 60 on the first wiring 412 or the influence of the vibration of the mechanical unit UN1 including the conveyance motor 42 on the first wiring 412.

[0227] It should be noted that the configuration related to this configuration example may not necessarily be used.

[0228] Here, in the present embodiment, when observed from a perspective parallel to the Z direction, the power-receiving coil 110 may be disposed at a position where at least a part thereof overlaps with the control unit 20.

[0229] As a specific example, in the mechanical unit UN1, the motor sometimes rotates, and the area around the mechanical unit UN1 is likely to be affected by the vibration of the mechanical unit UN1. Similarly, in the roll paper accommodating portion 60, the roll paper sometimes bounces during conveyance, and the area around the roll paper accommodating portion 60 is likely to be affected by the contact or vibration of the roll paper. On the other hand, in the control unit 20, compared with these, there are fewer factors of vibration. Therefore, by arranging the power receiving coil 110 at a position corresponding to the control unit 20, the influence of vibration and the like can be reduced.

[0230] As a structural example, in a printing apparatus, a positioning member is provided on a cover body 312, and the positioning member can be connected to a first magnet of a power transmission coil 6 that generates a magnetic field Pmg based on a power transmission signal Vpt.

[0231] Here, Figure 6B in the example of, the second magnetic array M1 of the power transmission coil 6 is an example of the first magnet, and the first magnetic array 611 of the power receiving coil 110 is an example of the positioning member.

[0232] Therefore, in the printing apparatus, by using magnets, it is possible to easily align the coils of the power transmission coil 6 and the power receiving coil 110 with each other. For example, even when the cover body 312 becomes the upper surface, it is possible to eliminate the necessity of inverting the printing apparatus for contactless charging.

[0233] It should be noted that, in Figure 6B the example of, it is shown that the positioning member of the power receiving coil 110 is constituted by a magnet. However, the positioning member may also be constituted by a metal.

[0234] In this example, it is shown that the positioning member is provided on the power receiving coil 110. However, as another example, the positioning member may be provided on the cover body 312.

[0235] It should be noted that it is not necessarily required to use the structure related to this structural example.

[0236] Here, a specific example of a problem that may occur when performing non-contact charging in a state where alignment without using magnets is shown.

[0237] That is, when the mobile printer 1 is placed on a table or the like with the side of the cover body 312 on which the power receiving coil 110 is provided as the upper surface, when aligning the power receiving coil 110 with the power transmission coil 6 disposed on the table or the like, an operation of inverting the mobile printer 1 up and down is required. In this case, since the roll paper inside the housing 311 moves unnecessarily, for example, it is considered that there is a possibility that the roll paper touches the power receiving coil 110 or the first wiring 412 and causes an adverse effect.

[0238] In view of this, in the case of performing alignment using a magnet, even if the lid 312 of the power receiving coil 110 is set to be the upper surface, the power transmitting coil 6 can be attached to the lid 312 by using the magnet. Therefore, there is no need to reverse the mobile printer 1, and as a result, the adverse effect of the rolled paper on the power receiving coil 110 as described above can be suppressed.

[0239] As described above, the embodiments have been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and also includes designs and the like within the scope not departing from the gist of the present disclosure.

[0240] [Appendix]

[0241] Hereinafter, <Configuration Example 1> to <Configuration Example 8> are shown.

[0242] It should be noted that the lower configuration examples may or may not be applied to the upper configuration examples.

[0243] In addition, the lower configuration examples that can be applied to any one of two or more upper configuration examples can also be applied to any of the two or more upper configuration examples. Moreover, in this way, in the case where two or more application examples are generated, the lower configuration examples that are more lower than the lower configuration examples can also be applied to any of these two or more application examples.

[0244] <Configuration Example 1>

[0245] A printing device includes:

[0246] A housing having a roll paper accommodating portion for accommodating roll paper;

[0247] A lid connected to the housing via a first rotatable portion and opening and closing the roll paper accommodating portion;

[0248] A battery accommodating portion formed in the housing;

[0249] A battery accommodated in the battery accommodating portion;

[0250] A tape clip mounted on the housing; and

[0251] A power receiving module that receives a power transmission signal from the outside by non-contact power supply and supplies power to the battery,

[0252] wherein the housing has a first surface of the housing on which the lid is formed and a second surface of the housing different from the first surface of the housing,

[0253] The tape clip is provided on the second surface of the housing,

[0254] The power receiving module is disposed between the lid and the battery.

[0255] <Configuration Example 2>

[0256] The printing device according to <Configuration Example 1>, wherein,

[0257] The power receiving module is provided on the lid body.

[0258] <Configuration Example 3>

[0259] The printing device according to <Configuration Example 1> or <Configuration Example 2>, wherein,

[0260] The first wiring connecting the power receiving module and the battery passes through the first rotatable part of the lid body and the housing,

[0261] The shortest distance between the battery and the first rotatable part is shorter than the shortest distance between the roll paper accommodating part and the first rotatable part.

[0262] <Configuration Example 4>

[0263] The printing device according to any one of <Configuration Example 1> to <Configuration Example 3>, wherein,

[0264] The first wiring connecting the power receiving module and the battery passes through the first rotatable part of the lid body and the housing,

[0265] The lid body has: a first end portion that forms a discharge port for discharging the roll paper together with the end portion of the housing; and a second end portion that is in contact with the first rotatable part,

[0266] The shortest distance between the second end portion and the power receiving module is shorter than the shortest distance between the first end portion and the power receiving module.

[0267] <Configuration Example 5>

[0268] The printing device according to <Configuration Example 4>, wherein,

[0269] The shortest distance from the discharge port to the axis of the roll paper is shorter than the shortest distance from the discharge port to the power receiving module.

[0270] <Configuration Example 6>

[0271] The printing device according to any one of <Configuration Example 1> to <Configuration Example 5>, wherein,

[0272] The battery accommodating part is formed on the second surface of the housing,

[0273] The lid body has: a first lid surface on which a power receivable area is arranged; and a second lid surface on which a power receiving coil of the power receiving module is provided,

[0274] The printing device further includes: a first wiring that connects the power receiving module and the battery; and a protective cover that is connected to the second surface of the cover.

[0275] The first wiring is disposed between the cover and the protective cover.

[0276] <Constitution Example 7>

[0277] The printing device according to any one of <Constitution Example 1> to <Constitution Example 6> includes:

[0278] a control unit that receives power supply from the battery and outputs a signal; and

[0279] a mechanical unit that is driven according to the signal output from the control unit.

[0280] The mechanical unit at least includes a conveyance motor that conveys the recording paper pulled out from the roll paper.

[0281] The roll paper accommodating portion is disposed between the control unit and the mechanical unit.

[0282] In a state where the cover is closed, the shortest distance between the power receiving coil of the power receiving module and the mechanical unit is greater than the shortest distance between the power receiving coil and the control unit.

[0283] <Constitution Example 8>

[0284] The printing device according to any one of <Constitution Example 1> to <Constitution Example 7>, wherein

[0285] a positioning member is provided on the cover, and the positioning member can be connected to a first magnet of a power transmission coil that generates a magnetic field based on the power transmission signal.

Claims

1. A printing device, characterized in that: have: The housing has a roll paper accommodating portion for accommodating the roll paper; A cover body connected to the housing via a first rotatable movable portion and opening and closing the roll paper accommodating portion; A battery receiving portion formed in the housing; A battery, housed in the battery housing; a belt clip mounted on the housing; as well as The power receiving module receives a power transmission signal from the outside through contactless power supply and supplies power to the battery. The housing has a first housing surface on which the cover is formed and a second housing surface different from the first housing surface. The belt clip is arranged on the second surface of the housing, The power receiving module is arranged between the cover and the battery.

2. The printing device according to claim 1, characterized in that The power receiving module is arranged on the cover.

3. The printing device according to claim 1 or 2, characterized in that: A first wiring connecting the power receiving module and the battery passes through the cover and the first rotating movable portion of the housing. The shortest distance between the battery and the first rotationally movable portion is shorter than the shortest distance between the roll paper accommodating portion and the first rotationally movable portion.

4. The printing device according to claim 1 or 2, characterized in that: A first wiring connecting the power receiving module and the battery passes through the cover and the first rotating movable portion of the housing. The cover body has: a first end portion, which together with an end portion of the housing forms a discharge port through which the roll paper can be discharged; and a second end portion, which is in contact with the first rotating movable portion. The shortest distance between the second end and the power receiving module is shorter than the shortest distance between the first end and the power receiving module.

5. The printing device according to claim 4, characterized in that The shortest distance from the discharge port to the axis of the roll paper is shorter than the shortest distance from the discharge port to the power receiving module.

6. The printing device according to claim 1 or 2, characterized in that: The battery receiving portion is formed on the second surface of the housing, The cover body comprises: a first surface of the cover body, on which a power receiving area is arranged; and a second surface of the cover body, on which a power receiving coil of the power receiving module is arranged. The printing device further comprises: a first wiring connecting the power receiving module and the battery; and a protective cover connected to the second surface of the cover. The first wiring is disposed between the cover and the protection cover.

7. The printing device according to claim 1 or 2, characterized in that: The printing device comprises: a control unit that receives power supply from the battery and outputs a signal; and a mechanical unit driven according to a signal output from the control unit, The mechanical unit includes at least a conveying motor for conveying the recording paper pulled out from the paper roll. The roll paper accommodating portion is disposed between the control unit and the mechanical unit. When the cover is closed, the shortest distance between the power receiving coil of the power receiving module and the mechanical unit is greater than the shortest distance between the power receiving coil and the control unit.

8. The printing device according to claim 1 or 2, characterized in that: The cover body is provided with a positioning member, and the positioning member can be connected to a first magnet of the power transmission coil that generates a magnetic field based on the power transmission signal.

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