Portable printing device

Abstract

The utility model relates to a portable printing equipment belongs to printing device technical field. It includes fuselage, the printing module and identification module of setting in fuselage. The printing module includes paper box subassembly and print head, and the identification module includes data label, read-write device and paper display screen. Data label sets up on the outside of paper box subassembly, and read-write device is opposite to data label and sets up, and paper display screen sets up in the outer surface of fuselage. Read-write device and print head and paper display screen electricity are connected, and read-write device can update the residual paper quantity in paper box subassembly according to the printing number of print head, and write the residual paper quantity information after updating into data label, and residual paper quantity information is transmitted to paper display screen and shows, thereby makes the user without manual judgment or record paper state can intuitively know residual paper quantity, to improve the intelligent level of paper management greatly, increases the use reliability of equipment.

Description

Technical Field

[0001] This utility model relates to the field of printing device technology, and in particular to a portable printing device. Background Technology

[0002] With the increasing popularity of portable printing devices (such as portable printers and instant cameras), users' demands for printing convenience and intelligent management are constantly increasing. However, existing printing devices generally lack the function of recognizing and displaying the amount of paper inside, so users cannot intuitively know the amount of paper remaining before printing, often resulting in printing interruptions or waste of consumables. Utility Model Content

[0003] The purpose of this invention is to solve the technical problem that users cannot intuitively know the amount of paper remaining before printing.

[0004] To address the aforementioned technical problems, this application provides a portable printing device, comprising: a body with a paper output port; a printing module disposed within the body; the printing module including a paper tray assembly and a print head, the paper tray assembly having a receiving cavity in which multiple sheets of printing paper are stacked, the print head being disposed on one side of the paper tray assembly for printing on the paper, and the printed paper being output through the paper output port; and an identification module including a data tag, a reader / writer, and a paper display screen; the data tag being disposed on the outer surface of the paper tray assembly for storing information about the contents of the paper tray assembly. The printer displays the quantity of printed paper. The reader is located inside the printer body and positioned opposite the data tag, used to read the quantity of printed paper stored in the data tag. The paper display screen is located on the outer surface of the printer body and used to display the remaining quantity of paper in the paper tray assembly. The reader is electrically connected to the print head and the paper display screen, enabling the reader to update the remaining quantity of paper in the paper tray assembly based on the number of prints made by the print head, write the updated remaining quantity information into the data tag, and transmit the remaining quantity information to the paper display screen for display.

[0005] In some embodiments of this application, the data tag includes a tag body and an RFID chip. The tag body is disposed on the outer surface of the paper box assembly, and the RFID chip is disposed within the tag body to store information on the quantity of printing paper remaining in the paper box assembly.

[0006] In some embodiments of this application, the reader includes a reader circuit board and an RFID reader module. The RFID reader module is disposed on the reader circuit board and is electrically connected to the paper display screen and the print head through the reader circuit board.

[0007] In some embodiments of this application, the paper tray assembly includes a paper tray body, a ribbon output shaft, a ribbon transport section, and a ribbon rewind shaft; the paper tray body has a receiving cavity for accommodating printing paper; the ribbon output shaft is rotatably disposed on the paper tray body for placing and outputting the ribbon; the ribbon transport section is disposed at the paper output end of the paper tray body for guiding the ribbon through the printing area; the ribbon rewind shaft is rotatably disposed on the ribbon transport section for driving the ribbon to move and winding it onto the ribbon rewind shaft.

[0008] In some embodiments of this application, the portable printing device further includes a camera module; the camera module is disposed inside the device body and is used to capture images; the camera module is electrically connected to the print head, so that the images captured by the camera module can be printed through the print head.

[0009] In some embodiments of this application, the photography module includes a control circuit board, a camera module, and a main display screen; a shooting window is provided on the front side of the device body, the camera module is mounted on the control circuit board and corresponds to the shooting window to acquire external images; the main display screen is located on the rear side of the device body and is electrically connected to the control circuit board for displaying the external images captured by the camera module.

[0010] In some embodiments of this application, the photography module further includes a flash, which is disposed on the front side of the camera body and electrically connected to the control circuit board.

[0011] In some embodiments of this application, the photography module further includes a main shutter button, which is disposed on the periphery of the camera body and electrically connected to the control circuit board to control the camera module to take pictures.

[0012] In some embodiments of this application, the photography module further includes a self-timer button, which is disposed on the front side of the camera body and electrically connected to the control circuit board to control the camera module to take pictures.

[0013] In some embodiments of this application, the photography module further includes operation buttons and parameter adjustment knobs electrically connected to the control circuit board; the operation buttons are located on the rear side of the body and are used to operate the interface of the main display screen; the parameter adjustment knobs are located on the periphery of the body and are used to adjust the parameters of the camera module.

[0014] In some embodiments of this application, the portable printing device further includes an NFC module; the NFC module is disposed within the device body and is used for near-field wireless communication with an external terminal to achieve data interaction.

[0015] As can be seen from the above technical solution, the beneficial effects of this utility model are as follows: This application provides a portable printing device that automatically associates and updates the number of printhead prints with the remaining paper quantity by setting a data tag on the paper tray assembly to store the remaining paper quantity, and equipping the device with a reader and paper display screen. This allows users to intuitively know the remaining paper quantity without manually judging or recording the paper status, while ensuring that the paper information can still be accurately displayed when the paper tray moves between different devices, greatly improving the intelligence level, ease of operation, and reliability of paper management. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a portable printing device.

[0017] Figure 2 This is a three-dimensional structural diagram of a portable printing device from another angle.

[0018] Figure 3 for Figure 1 An exploded view of a portable printing device.

[0019] Figure 4 for Figure 3 Another exploded view of the portable printing device.

[0020] Figure 5 This is an exploded view of the identification module of a portable printing device.

[0021] Figure 6 This is a cross-sectional view of a portable printing device.

[0022] The annotations in the attached figures are explained as follows: 100. Portable printing device; 10. Body; 11. Main body; 12. Front cover; 121. Camera window; 13. Rear cover; 14. Top shell; 15. Bottom shell; 16. Paper output tray; 17. Lanyard hole; 18. Data interface; 20. Printing module; 21. Paper tray assembly; 211. Paper tray body; 212. Ribbon output shaft; 213. Ribbon transport section; 214. Ribbon rewind shaft; 22. Print head; 221. Printing roller; 222. Paper feed roller assembly; 30. Identification module; 31. Data tag; 32. Reader / writer; 321. RFID reader / writer module; 322. Reader / writer circuit board; 33. Paper display screen; 40. Photography module; 41. Control circuit board; 42. Camera module; 43. Main display screen; 44. Flash; 45. Main shutter button; 46. Selfie shutter button; 47. Operation buttons; 48. Parameter adjustment knob; 50. Includes NFC module; 60. Battery. Detailed Implementation

[0023] Typical embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different embodiments, all of which do not depart from the scope of this utility model, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this utility model.

[0024] In the description of this application, it should be understood that, in the embodiments shown in the accompanying drawings, the indications of direction or positional relationships (such as up, down, left, right, front, and back, etc.) are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the mechanism or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the accompanying drawings. If the description of the positions of these elements changes, these directional indications also change accordingly.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] Please see Figures 1 to 5 This embodiment provides a portable printing device 100, which includes a body 10, a printing module 20 and an identification module 30.

[0027] The body 10 is provided with a paper output port 16. The printing module 20 is disposed inside the body 10; the printing module 20 includes a paper tray assembly 21 and a print head 22. The paper tray assembly 21 has a receiving cavity in which multiple sheets of printing paper are stacked. The print head 22 is disposed on one side of the paper tray assembly 21 and is used to print on the printing paper. The printed paper is output through the paper output port 16.

[0028] The identification module 30 includes a data tag 31, a reader / writer 32, and a paper display screen 33. The data tag 31 is disposed on the outer surface of the paper tray assembly 21 and is used to store information about the number of printed papers inside the paper tray assembly 21. The reader / writer 32 is disposed inside the machine body 10 and is positioned opposite to the data tag 31, and is used to read the information about the number of printed papers stored in the data tag 31; the paper display screen 33 is disposed on the outer surface of the machine body 10 and is used to display the number of remaining papers inside the paper tray assembly 21.

[0029] The reader 32 is electrically connected to the print head 22 and the paper display screen 33, so that the reader 32 can update the remaining paper quantity in the paper tray assembly 21 according to the number of prints of the print head 22, write the updated remaining paper quantity information into the data tag 31, and transmit the remaining paper quantity information to the paper display screen 33 for display.

[0030] Specifically, such as Figure 3 and Figure 4 As shown, the printer body 10 may include a main body 11, a front cover 12, a rear cover 13, a top shell 14, and a bottom shell 15. The front cover 12 and rear cover 13 have through holes for the buttons and screen to be exposed. The front cover 12 and rear cover 13 are detachably connected to the front and rear sides of the main body 11 to enclose internal structures such as the printing module 20 and the identification module 30. The top shell 14 and bottom shell 15 cover the top and bottom of the printer body 10 respectively, forming the overall appearance structure. The paper output port 16 on the printer body 10 can be located on the left and right sides or the bottom of the printer body 10 to facilitate paper output.

[0031] like Figure 5 As shown, the paper tray assembly 21 has a receiving cavity in which printing paper is arranged in a stacked manner. A printhead 22 is disposed on one side of the paper tray assembly 21. When the device is operating, the printhead 22 prints on the paper, and the printed paper is output through the paper output port 16. The printing module 20 can employ either a dye-sublimation printhead 22 or a thermal printhead 22, adaptable to different types of paper tray assemblies 21.

[0032] like Figure 5 As shown, the data tag 31 is disposed on the outer surface of the paper tray assembly 21, and the reader 32 is disposed on the inner wall of the machine body 10, opposite to the outer surface of the paper tray assembly 21, to ensure that after the paper tray is inserted into the machine body 10, the reader 32 can wirelessly read or write the information in the data tag 31. The reader 32 is electrically connected to the print head 22 and the paper display screen 33 for information exchange during machine operation. The paper display screen 33 is disposed on the outer surface of the machine body 10, preferably on one side of the front cover 12, for easy viewing by the user.

[0033] When the device is running, the reader 32 first reads the pre-stored paper quantity information (e.g., 10 sheets) in the data tag 31 of the paper tray assembly 21. When the user performs a printing operation through the print head 22, the reader 32 counts the number of prints and automatically calculates the remaining paper quantity after each print, writing the updated remaining quantity information into the data tag 31. Subsequently, the reader 32 transmits the latest remaining paper quantity information to the paper display screen 33 to display the current paper balance in real time.

[0034] When the paper tray assembly 21 is removed and replaced by another device, the reader 32 in the new device can also read the remaining paper quantity information stored in the data tag 31, thereby realizing paper quantity identification and synchronization across devices and avoiding printing count errors or paper waste.

[0035] The portable printing device 100 achieves automatic identification and dynamic updating of the number of printing papers by setting a readable and writable data tag 31 on the paper tray assembly 21 and setting a reader 32 in the body 10 to cooperate with it. This allows users to intuitively know the number of remaining papers, effectively avoiding printing interruptions and paper waste, and effectively improving the intelligence of the portable printing device.

[0036] Please see Figure 5 and Figure 6 In some embodiments, the paper tray assembly 21 includes a paper tray body 211, a ribbon output shaft 212, a ribbon transport section 213, and a ribbon rewind shaft 214. The paper tray body 211 has a receiving cavity for accommodating printing paper; the ribbon output shaft 212 is rotatably mounted on the paper tray body 211 for placing and outputting the ribbon. The ribbon transport section 213 is located at the paper output end of the paper tray body 211 for guiding the ribbon through the printing area; the ribbon rewind shaft 214 is rotatably mounted on the ribbon transport section 213 for moving the ribbon and winding it onto the ribbon rewind shaft 214.

[0037] Specifically, the printer body 10 is equipped with a printhead 22 and a printing roller 221 opposite to the printhead 22. The printhead 22 is located at the paper output end of the paper tray body 211. The printhead 22 and the printing roller 221 form a printing area. When the printing paper and ribbon pass through this area simultaneously, the ink in the ribbon sublimates under the heating effect of the printhead 22 and is transferred to the printing paper. The printer body 10 is also equipped with a paper feed roller assembly 222, which forms a friction drive with the printing paper to drive the printing paper to reciprocate within the printer body 10, thereby achieving multi-color layer overlay printing.

[0038] For example, when printing a photograph, the paper feed roller assembly 222 first pushes the paper out of the receiving cavity, so that the leading edge of the paper passes between the print head 22 and the printing roller 221. At the same time, the ribbon output shaft 212 pulls the ribbon out, and the ribbon rewind shaft 214 drives the ribbon to move in a single direction. The print head 22 heats the paper according to the pixel distribution of the first color component of the image (e.g., yellow), causing the corresponding pigment in the ribbon to sublimate and transfer to the printing paper, thus completing the printing of the first color.

[0039] After the first color printing is completed, the paper feed roller assembly 222 rotates in the reverse direction, pulling the printed paper back into the paper tray body 211 to prepare for the next color printing. Subsequently, the paper feed roller assembly 222 drives the printed paper forward again, and the print head 22 heats the paper according to the pixel information of the second color component (e.g., red), achieving superimposed printing of the second color. The same process is repeated for the third color (e.g., blue) printing to complete the printing of the three primary colors, thus printing a color pattern. If necessary, the device can also perform a fourth print, covering the surface of the printed paper with a transparent protective film to improve the wear resistance and preservation of the printed image.

[0040] Throughout the printing process, the paper is propelled back and forth by the paper feed roller assembly 222, while the ribbon moves unidirectionally in the output direction, preventing ribbon retraction, improving ribbon utilization efficiency, and ensuring accurate color overlay. Four reciprocating print cycles complete the output of a full-color image. When the paper and ribbon are depleted, the paper tray assembly 21 can be replaced entirely for quick paper and ribbon replacement.

[0041] Please see Figure 5 In some embodiments, the data tag 31 includes a tag body and an RFID chip. The tag body is disposed on the outer surface of the paper tray assembly 21, and the RFID chip is disposed within the tag body to store information on the quantity of printing paper remaining in the paper tray assembly 21.

[0042] Specifically, the label body can be glued or heat-pressed onto the outer surface of the paper tray body 211. It can be made of a heat-resistant and anti-static film material to adapt to the temperature environment inside the printing equipment. An RFID chip is embedded inside the label body, and its built-in storage unit is used to store the quantity information of the printed paper corresponding to the paper tray body 211. Of course, the RFID chip can also store information such as the initial total number of sheets, the current remaining number of sheets, or the paper tray identification code. When the paper tray body 211 is installed inside the machine body 10, the RFID chip can wirelessly interact with the reader 32 inside the machine body 10 to read and update the paper quantity information. Even if the paper tray body 211 is removed from one device and installed in another, it can still be correctly identified and the actual remaining number of sheets can be displayed, avoiding counting errors caused by cross-device use.

[0043] Please see Figure 5 In some embodiments, the reader 32 includes a reader circuit board 322 and an RFID reader module 321. The RFID reader module 321 is disposed on the reader circuit board 322 and is electrically connected to the paper display screen 33 and the print head 22 through the reader circuit board 322.

[0044] The read / write circuit board 322 is fixedly installed inside the machine body 10, typically near the mounting position of the paper tray body 211, so that the RFID read / write module 321 can be positioned opposite the RFID chip on the outside of the paper tray body 211, ensuring stable and reliable wireless communication. The RFID read / write module 321 is mounted on the read / write circuit board 322 and is electrically connected to the paper display screen 33 and the print head 22 via the circuit board. The RFID read / write module 321 can automatically read the paper information stored in the RFID chip and send the reading result to the control circuit, which then drives the paper display screen 33 to display the current remaining paper quantity.

[0045] When a user performs a printing operation, after the print head 22 completes a printing task, the control circuit automatically triggers the counting logic, decrements the remaining paper quantity by one, and writes the updated data back to the RFID chip via the read / write circuit board 322. In this way, the paper quantity stored in the RFID chip always remains consistent with the actual usage, achieving real-time updating and cyclical recording of the remaining paper quantity.

[0046] Of course, in some other embodiments, the data tag 31 and the reader 32 can also be used for reading and writing data using wireless communication technologies such as NFC tags or NFC readers 32.

[0047] Please see Figure 3 and Figure 4 In some embodiments, the portable printing device 100 also includes a camera module 40. The camera module 40 is disposed within the body 10 and is used to capture images. The camera module 40 is electrically connected to the print head 22, so that the images captured by the camera module 40 can be printed through the print head 22.

[0048] The portable printing device 100 integrates a photography module 40 on the basis of the original body structure 10 and printing function, so that the device can not only perform printing operations, but also has the combined functions of shooting and instant printing, which is equivalent to a portable imaging printing device like an instant camera.

[0049] Please see Figure 3 and Figure 4 In some embodiments, the photography module 40 includes a control circuit board 41, a camera module 42, and a main display screen 43. A shooting window 121 is provided on the front side of the body 10, and the camera module 42 is mounted on the control circuit board 41 and corresponds to the shooting window 121 to acquire external images. The main display screen 43 is located on the rear side of the body 10 and is electrically connected to the control circuit board 41 for displaying the external images captured by the camera module 42.

[0050] Specifically, the front cover 12 of the body 10 has a shooting window 121, and a lens assembly can be installed at the shooting window 121 for focusing the camera module 42. A control circuit board 41 is mounted on the body 11, and the camera module 42 is fixed to the control circuit board 41 and positioned facing the front cover 12 to correspond to the shooting window 121. The camera module 42 may include a lens assembly, an image sensor, an autofocus mechanism, etc.

[0051] After the camera module 42 captures images of the external scene of the device 10, it transmits the image signal to the control circuit board 41 for preliminary processing. The control circuit board 41 is equipped with an image processing chip and a drive circuit, which are used to perform color correction, exposure adjustment, or data compression on the image signal. Then, the processed data is transmitted to the main display screen 43 for real-time display of the external images captured by the camera module 42, allowing the user to perform framing, focusing, and shooting confirmation operations through the main display screen 43.

[0052] Please see Figure 3 and Figure 4 In some embodiments, the photography module 40 also includes a flash 44, which is disposed on the front side of the body 10 and electrically connected to the control circuit board 41.

[0053] The front cover 12 of the camera body 10 has a light outlet at its top corner, corresponding to the flash unit 44. A light-transmitting cover or frosted lens structure can be installed at the light outlet to soften the light from the flash unit 44 and prevent overexposure or strong reflections when shooting close-up people or objects. The flash unit 44 is fixed to and electrically connected to the control circuit board 41, which has a flash drive circuit for controlling the timing and intensity of the flash unit 44.

[0054] The flash unit 44 can employ a high-brightness LED light source or a xenon tube structure, offering fast response and low power consumption, enabling it to output a high-intensity beam in a short time. The light emitted by the flash unit 44 is evenly scattered outwards through the light outlet at the apex of the front cover 12, effectively improving shooting results in backlit, low-light, or indoor environments. This allows the portable printing device 100 to obtain clear and bright images even at night, indoors, or in low-light conditions, thus ensuring color reproduction and detail in the captured image.

[0055] Please see Figure 1 and Figure 2 In some embodiments, the photography module 40 further includes a main shutter button 45. The main shutter button 45 is located on the periphery of the body 10 and is electrically connected to the control circuit board 41 to control the camera module 42 to take pictures. Furthermore, the photography module 40 also includes a self-timer shutter button 46, which is located on the front side of the body 10 and is electrically connected to the control circuit board 41 to control the camera module 42 to take pictures.

[0056] Specifically, the main shutter button 45 is located around the periphery of the camera body 10, such as on the right side or upper edge of the body 10, allowing the user to naturally press it with their thumb or forefinger while holding the device. The main shutter button 45 is electrically connected to the control circuit board 41 and is used to control the camera module 42 to perform the shooting action. After framing the subject through the viewfinder, the user can directly press the main shutter button 45 to complete the photo taking operation. This conforms to the operating habits of traditional cameras, making it convenient for users to shoot external scenes, landscapes, or people with one hand.

[0057] The Selfie shutter button 46 is located on the front side of the camera body 10, preferably in the area of ​​the front cover 12 near the shooting window 121. The Selfie shutter button 46 is also electrically connected to the control circuit board 41 and is used to control the camera module 42 to take pictures when the device is facing the user. This allows the user to quickly take pictures by directly pressing the front Selfie shutter button 46 without reversing the device or using an external remote control when taking selfies or group photos.

[0058] By simultaneously incorporating a main shutter button 45 and a Selfie shutter button 46 onto the portable printing device 100, the ease of use and operational flexibility of the device are significantly improved. In particular, when taking selfies, users can achieve one-handed selfies or group photos without needing to reverse the device or use a time-lapse function. This enhances the user experience, enabling the portable printing device 100 to combine the operational characteristics of a traditional camera with those of an instant camera, meeting diverse shooting and printing needs.

[0059] Please see Figure 1 and Figure 2 In some embodiments, the camera module 40 further includes operation buttons 47 and parameter adjustment knobs 48 electrically connected to the control circuit board 41. The operation buttons 47 are located on the rear side of the body 10 and are used to operate the interface of the main display screen 43. The parameter adjustment knobs 48 are located on the periphery of the body 10 and are used to adjust the parameters of the camera module 42.

[0060] The operation buttons 47 can be located in an adjacent area of ​​the main display screen 43, such as on the right or below the main display screen 43. The operation buttons 47 can be several independent buttons or an integrated button panel. The functions of the buttons include interface switching, shooting mode selection, brightness adjustment, image browsing, and print confirmation. The signals from the operation buttons 47 are transmitted to the main display screen 43 via the control circuit board 41, enabling the user to interact with the display interface, such as switching between the shooting preview interface and the print preview interface, or selecting the image file to be printed in gallery mode.

[0061] The parameter adjustment knob 48 can be located on the upper edge or upper right corner of the body 10, allowing for natural operation while holding the device. The parameter adjustment knob 48 is electrically connected to the control circuit board 41 and can be used for precise adjustment of the focal length of the camera module 42. When the user rotates the parameter adjustment knob 48, the control circuit board 41 drives the autofocus mechanism of the camera module 42 (e.g., a stepper motor or linear actuator) to fine-tune the lens to adapt to subjects at different distances.

[0062] Please see Figure 1 In some embodiments, the portable printing device 100 also has a data interface 18 on its body 10. The data interface 18 can be a Type-C interface, a USB interface, etc. This data interface 18 is electrically connected to the control circuit board 41 and is used to realize data transmission and power connection between the device and external electronic terminals.

[0063] For example, users can quickly import image files taken with a camera or mobile phone into the portable printing device 100 for printing through the data interface 18, improving the efficiency and stability of data transmission. On the other hand, the data interface 18 can also serve as a charging interface, powering the battery 60 inside the portable printing device 100 or enabling continuous power supply operation.

[0064] Please see Figures 3 to 5 In some embodiments, the portable printing device 100 also includes an NFC module 50. The NFC module is located within the device body 10 and is used for near-field wireless communication with external terminals to enable data interaction.

[0065] Specifically, the NFC module can be embedded in the top surface of the device 10. The NFC module is electrically connected to the control circuit board 41 and is used for near-field wireless communication with external terminals (such as smartphones, tablets, etc.) to achieve data interaction. Users only need to touch or bring the external terminal close to the NFC sensing area of ​​the device to establish a short-range wireless communication connection between the two. By setting up the NFC module, the portable printing device 100 achieves fast data interaction and intelligent connection with external terminals, which not only facilitates users to transfer pictures and send print jobs, but also enables real-time reading and synchronous display of printing consumable status, greatly improving the intelligence level and interactive experience of the device.

[0066] Please see Figure 2 In some embodiments, the portable printing device 100 has a lanyard hole 17 on its side perimeter. The lanyard hole 17 extends through the side wall structure of the device 10 and is used for attaching a lanyard or wrist strap. By providing the lanyard hole 17, users can hang the device on their wrist, backpack, or neck according to the usage scenario, thereby achieving convenient carrying when shooting outdoors or printing on the go, and preventing the device from slipping and being damaged.

[0067] In summary, this application provides a portable printing device 100. By setting a data tag 31 on the paper tray assembly 21 to store the remaining paper quantity, and configuring a reader / writer 32 and a paper display screen 33 in the body 10, the device achieves automatic association and real-time update of the number of prints by the print head 22 with the remaining paper quantity. This allows users to intuitively know the remaining paper quantity without manually judging or recording the paper status. At the same time, it ensures that the paper information can still be accurately displayed when the paper tray moves between different devices, greatly improving the intelligence level, ease of operation, and reliability of paper management.

[0068] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A portable printing device, characterized in that, include: The machine body has a paper output slot on it; A printing module is disposed within the machine body; the printing module includes a paper tray assembly and a print head, the paper tray assembly has a receiving cavity in which multiple sheets of printing paper are stacked, the print head is disposed on one side of the paper tray assembly for printing on the printing paper, and the printed paper is output through the paper outlet; The identification module includes a data tag, a reader / writer, and a paper display screen. The data tag is disposed on the outer surface of the paper tray assembly and is used to store information about the number of printed papers inside the paper tray assembly. The reader / writer is disposed inside the machine body and is positioned opposite to the data tag, and is used to read the information about the number of printed papers stored in the data tag. The paper display screen is disposed on the outer surface of the machine body and is used to display the number of remaining papers inside the paper tray assembly. The reader is electrically connected to the print head and the paper display screen, enabling the reader to update the remaining paper quantity in the paper tray assembly based on the number of prints made by the print head, write the updated remaining paper quantity information into the data tag, and transmit the remaining paper quantity information to the paper display screen for display.

2. The portable printing device according to claim 1, characterized in that, The data tag includes a tag body and an RFID chip. The tag body is disposed on the outer surface of the paper box assembly, and the RFID chip is disposed in the tag body to store information on the amount of printing paper remaining in the paper box assembly.

3. The portable printing device according to claim 2, characterized in that, The reader includes a reading and writing circuit board and an RFID reading and writing module. The RFID reading and writing module is disposed on the reading and writing circuit board and is electrically connected to the paper display screen and the print head through the reading and writing circuit board.

4. The portable printing device according to claim 1, characterized in that, The paper tray assembly includes a paper tray body, a ribbon output shaft, a ribbon transport section, and a ribbon rewind shaft. The paper tray body has a receiving cavity for accommodating printing paper. The ribbon output shaft is rotatably mounted on the paper tray body for placing and outputting the ribbon. The ribbon transport section is located at the paper output end of the paper tray body for guiding the ribbon through the printing area. The ribbon rewind shaft is rotatably mounted on the ribbon transport section for moving the ribbon and winding it back onto the ribbon rewind shaft.

5. The portable printing device according to claim 1, characterized in that, The portable printing device also includes a camera module; the camera module is disposed inside the body and is used to capture images; the camera module is electrically connected to the print head, so that the images captured by the camera module can be printed through the print head.

6. The portable printing device according to claim 5, characterized in that, The photography module includes a control circuit board, a camera module, and a main display screen; a shooting window is provided on the front side of the device, and the camera module is mounted on the control circuit board and corresponds to the shooting window to acquire external images; the main display screen is located on the rear side of the device and is electrically connected to the control circuit board to display the external images captured by the camera module.

7. The portable printing device according to claim 6, characterized in that, The photography module also includes a flash unit, which is located on the front side of the camera body and electrically connected to the control circuit board.

8. The portable printing device according to claim 6, characterized in that, The photography module also includes a main shutter button, which is located on the periphery of the camera body and electrically connected to the control circuit board to control the camera module to take pictures.

9. The portable printing device according to claim 8, characterized in that, The photography module also includes a self-timer button, which is located on the front side of the device and electrically connected to the control circuit board to control the camera module to take pictures.

10. The portable printing device according to claim 6, characterized in that, The photography module also includes operation buttons and parameter adjustment knobs electrically connected to the control circuit board; the operation buttons are located on the rear side of the body and are used to operate the interface of the main display screen; the parameter adjustment knobs are located on the periphery of the body and are used to adjust the parameters of the camera module.

11. The portable printing device according to claim 1, characterized in that, The portable printing device also includes an NFC module; the NFC module is located inside the device and is used for near-field wireless communication with external terminals to achieve data interaction.

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