Mobile phone shell printing equipment and control method thereof

Abstract

The invention provides mobile phone shell printing equipment and a control method thereof. The method comprises the steps that a mobile phone shell bracket is moved to a printing station, a printing head is moved to the position above a trial printing area of the mobile phone shell bracket, replaceable stickers are arranged on the trial printing area, and a mobile phone shell to be printed is placed in the mobile phone shell bracket; recycling information is generated, a trial printing pattern is generated based on the recycling information, and the recycling information is bound with a current order; a printing head prints a trial printing pattern in the trial printing area; acquiring a first actual pattern of a trial printing area through a camera, and comparing the first actual pattern with a trial printing pattern to determine whether the working condition of a printing head is normal or not; when a user carries out recovery operation on the mobile phone shell bracket, reading recovery information in the first actual pattern through a code scanning head; and querying a user order according to the recovery information, and issuing rights and interests to a corresponding user account based on the order.

Description

TECHNICAL FIELD

[0001] The present application relates to self-service equipment technology, in particular to a mobile phone shell printing equipment and a control method thereof. BACKGROUND

[0002] The mobile phone shell printer mainly provides custom services for mobile phone shell patterns in a self-service form. Since the equipment is usually unattended, equipment abnormalities need to be fed back by customers, but once the customer feedback is waited for, it will cause complaints and affect the brand.

[0003] In the mobile phone shell printer, in order to simplify the device clamp, a bracket is arranged, and different sizes of mobile phone shells can be carried through the bracket. The bracket is generally universal, and the bracket has two functions, one is to facilitate the clamp to be fixed, and the other is to avoid the deformation of the mobile phone shell when the clamp is fixed, which causes printing problems.

[0004] Although the printer part has sensors and programs such as ink monitoring, it is not easy to detect whether it can normally print ink. In addition, the mobile phone shell bracket is generally given to the user together with the mobile phone shell, and then the user takes out the mobile phone shell and consciously puts it back into the recycling port of the equipment. However, in reality, a large proportion of users take away the bracket, which inevitably increases the cost. SUMMARY

[0005] The present application provides a mobile phone shell printing equipment and a control method thereof, which can detect the working condition of the print head and realize the recycling registration function of the mobile phone shell bracket.

[0006] The present application provides a control method of a mobile phone shell printing equipment, comprising: moving the mobile phone shell bracket to a printing station, controlling the print head to move above a test printing area of the mobile phone shell bracket, the test printing area being provided with a replaceable sticker, and the mobile phone shell bracket being placed with a mobile phone shell to be printed; generating recycling information, generating a test printing pattern based on the recycling information, and binding the recycling information with a current order; controlling the print head to print the test printing pattern in the test printing area; acquiring a first actual pattern of the test printing area through a camera, comparing the first actual pattern with the test printing pattern, and determining whether the working condition of the print head is normal; when a user performs a recycling operation on the mobile phone shell bracket, reading the recycling information in the first actual pattern through a code scanning head; querying a user order according to the recycling information, and issuing a benefit to a corresponding user account based on the order.

[0007] In some embodiments, before generating the recycling information, the following steps are further included: acquiring a second actual image of the printing area through the camera; determining whether the recycling information can be obtained from the second actual image; if not, and the second actual image is blank, performing the step of generating the recycling information; if yes, binding the recycling information corresponding to the second actual image with the current order, and skipping the steps of generating the recycling information, printing the recycling information, and checking the working condition of the print head.

[0008] In some embodiments, the comparing the first actual image with the test printing image to determine whether the working condition of the print head is normal specifically comprises: reading the actual recycling information from the first actual image to determine whether the actual recycling information is consistent with the recycling information generated by the system; if not, determining that the working condition of the print head is abnormal; if yes, comparing the similarity of the first actual image and the test printing image; if the image similarity is greater than a threshold, determining that the working condition of the print head is normal.

[0009] In some embodiments, the test printing image is a two-dimensional code including different color patterns.

[0010] In another aspect, the embodiments of the present application provide a mobile phone case printing device, comprising: a memory for storing a program; a processor for loading the program to perform the control method of the mobile phone case printing device.

[0011] In another aspect, the embodiments of the present application provide a mobile phone case printing device, comprising: a grabbing device for grabbing a mobile phone case holder to a printing station, wherein the mobile phone case holder is provided with a test printing area, the test printing area is provided with a replaceable sticker, and the mobile phone case holder is placed with a mobile phone case to be printed; a printing device including a movable print head for printing an image; a camera for photographing an area where the mobile phone case holder is located; a code scanner for reading recycling information on the mobile phone case holder; a control device for controlling the grabbing device to move the mobile phone case holder to the printing station, controlling the printing device to move the print head above the test printing area of the mobile phone case holder, generating recycling information, generating a test printing image based on the recycling information, the recycling information being bound with a current order, controlling the print head to print the test printing image on the test printing area, and acquiring a first actual image of the test printing area through the camera, and comparing the first actual image with the test printing image to determine whether the working condition of the print head is normal; When the user performs a recycling operation on the mobile phone shell cradle, the recycling information in the first actual pattern is read by the code scanning head; the user order is queried according to the recycling information, and the corresponding user account is given the right based on the order.

[0012] In some embodiments, the trial printing area of the mobile phone shell cradle is arranged at a camera hollow area of the mobile phone shell, and the mobile phone shell cradle is provided with a boss at the area, or the trial printing area of the mobile phone shell cradle is arranged at an edge area of the mobile phone shell.

[0013] In some embodiments, the control device is further configured to: acquire a second actual image of the printing area by the camera; determine whether the recycling information can be acquired from the second actual image; if not, and the second actual image is blank, the step of generating the recycling information is performed; if yes, the recycling information corresponding to the second actual image is bound to the current order, and the steps of generating the recycling information, printing the recycling information, and checking the working condition of the print head are skipped.

[0014] In some embodiments, the trial printing pattern is a two-dimensional code including different color patterns.

[0015] In some embodiments, among the mobile phone shell cradles stored in the mobile phone shell printing device, some mobile phone shell cradles have blank trial printing stickers pasted on the trial printing area, and some mobile phone shell cradles have recycling information pasted on the trial printing area.

[0016] One of the technical solutions in the above technical solutions of the present application has at least one of the following advantages or beneficial effects: The embodiments provided by the present application set a trial printing area with replaceable stickers in the mobile phone shell cradle, and the print head prints a pattern generated based on the recycling information on the trial printing area, and the recycling information is bound to the order; when the user takes out the mobile phone shell and the mobile phone shell cradle, and the mobile phone shell cradle is recycled, the recycling information pattern in the trial printing area can be read by code scanning, thereby realizing recycling registration of the mobile phone shell, and sending the right to the corresponding order account; at the same time, the trial printing area can also complete trial printing, and the working condition of the print head can be determined by image comparison. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0018] Figure 1 is a method flowchart of one embodiment provided by an embodiment of the present application; Figure 2 is a schematic diagram of a mobile phone shell bracket provided by an embodiment of the present application; Figure 3 is a schematic diagram of a mobile phone shell bracket provided by an embodiment of the present application; Figure 4 is a schematic diagram of a mobile phone shell bracket provided by an embodiment of the present application; Figure 5 is a schematic diagram of a mobile phone shell bracket provided by an embodiment of the present application; Figure 6 is a method flowchart of one embodiment provided by an embodiment of the present application. DETAILED DESCRIPTION

[0019] Embodiments of the present application are described in detail below with reference to the attached drawings, wherein the same or similar components have the same or similar designations throughout the several views, and a detailed description of the embodiments is provided only for the purpose of explanation and without restricting the present application. Embodiments described below are examples for explaining the present application and are not intended to limit the present application.

[0020] In the description of the present application, if the orientation description such as up, down, front, back, left, right and the like is involved, the orientation or position relationship based on the orientation or position relationship shown in the drawings is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0021] In the description of the present application, the meaning of several is one or more, and the meaning of multiple is two or more. Greater than, less than, more than and the like are understood as not including the number itself, and above, below, within and the like are understood as including the number itself. If the first and the second are described, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of technical features indicated.

[0022] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more features.

[0023] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the term "connection" should be understood broadly, for example, it can be a fixed connection or a movable connection, or a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, or an internal communication of two elements, an indirect communication or an interaction relationship between two elements.

[0024] The following disclosure provides many different implementations or examples to implement different aspects of the present application.

[0025] Referring to Figures 1 to 6 As shown, first, the function of the mobile phone shell printer is simply described, the mobile phone shell printer is generally provided with a mobile phone shell shelf, a mobile phone shell holder in the shelf is clamped out by a mechanical arm, and then placed on a printing station, the printing station is provided with an adjusting mechanism, and the adjusting mechanism adjusts and clamps the mobile phone shell holder. Then the printing head determines the printing distance by moving and ranging, and then performs printing. It can be understood that a camera can be arranged on the printing mechanism for scanning and shooting work.

[0026] Generally, the mode of the mobile phone shell printing device is that the user selects the mobile phone model through the device or the mobile phone, and then the system captures the mobile phone shell of the corresponding model according to the mobile phone model of the user to perform printing work, and the pattern printed is uploaded by the user himself. Generally, after the user uploads the picture and makes the payment, the device / server will crop and adjust the image, so as to determine the pattern actually printed on the printer. Subsequently, a blank mobile phone shell (placed in the mobile phone shell holder) is captured from the storage position to the printing station, the printing station adjusts the mobile phone shell holder to the specified position, and then the printing module determines the distance from the printing surface by ranging and other means, and then adjusts the posture to complete the printing of the blank mobile phone shell. Subsequently, the printed mobile phone shell is sent out together with the mobile phone shell holder. Because the mobile phone shell holder has no use value for the user, it is usually recommended that the user puts it into the recycling device. At present, the device using the mobile phone shell holder is generally provided with a recycling port, which is generally put into recycling by the user consciously. The system cannot sense whether the user recycles the holder.

[0027] Referring to Figure 1 The embodiment of the present application provides a control method of a mobile phone shell printing device, and the method specifically comprises the following steps. S1, moving the mobile phone shell holder to the printing station, and moving the printing head above the test printing area of the mobile phone shell holder, wherein a replaceable sticker is arranged on the test printing area, and the mobile phone shell holder is placed with a mobile phone shell to be printed.

[0028] As Figure 2 and Figure 3As shown, the mobile phone case holder 100 is provided with a limiting unit 101, which is arranged horizontally and vertically on the edge of the mobile phone case holder 100. The mobile phone case holder has a middle groove, and the mobile phone case 200 is placed in the groove in the middle of the mobile phone case holder. The mobile phone case is clamped in the mobile phone case holder 100 by the limiting unit 101 and the edge of the mobile phone case holder. The size of the mobile phone case holder is uniform, and the middle groove is generally larger than most mobile phone cases in size, and the width between the edge and the limiting unit 101 is generally based on the thickness of the edge of the mobile phone case, so different sizes of mobile phone cases can be placed. In this embodiment, the edge of the mobile phone case holder is provided with a test printing area 102, which can be pasted with a face adhesive sticker. It can be understood that the sticker can be printed with a pattern by the print head.

[0029] S2, generating recycling information, generating a test printing pattern based on the recycling information, the recycling information being bound to the current order.

[0030] It can be understood that the device side or the cloud side can store a recycling form, and the recycling form writes a plurality of unique numbers of mobile phone case holders to be recycled, which are at least part of the recycling information. The unique number can be randomly generated or generated according to certain rules. When the mobile phone case holder is sent out of the device, the recycling information is recorded in the form, and when the recycling information of the mobile phone case holder is scanned, the recycling information is deleted from the form.

[0031] It can be understood that a two-dimensional code image can be generated as a printing pattern based on the recycling information, such as a unique number string, and the recycling information is bound to the order.

[0032] S3, the print head prints a test printing pattern on the test printing area.

[0033] Specifically, since the position of the test printing area on the mobile phone case holder is determined, and the position of the mobile phone case holder on the printing station is also determined. Therefore, the coordinate information of the test printing area can be set in advance. The print head moves to the printing area above and can print the test printing pattern according to the program. It can be understood that the test printing pattern can be a two-dimensional code, which can be composed of different colors, so as to facilitate the test of whether the working condition of the print head is normal.

[0034] S4, acquiring a first actual pattern of the test printing area by the camera, comparing the first actual pattern with the test printing pattern to determine whether the working condition of the print head is normal.

[0035] It can be understood that if the working condition of the print head is normal, the actual pattern printed by the print head on the test printing area will be consistent with the test printing pattern. Therefore, by capturing the actual pattern of the test printing area by the camera, it can be determined whether the working condition of the print head is normal.

[0036] If the working condition of the print head is abnormal, an exception is thrown, and the printing of the current order is stopped. If the working condition of the print head is normal, the printing of the phone case pattern is continued.

[0037] S5, when the user recycles the phone case holder, the recycling information in the first actual pattern is read through the code scanning head.

[0038] It can be understood that a code scanner can be set to scan the recycling information (two-dimensional code), and then the device can query the corresponding recycling information form to determine that the current phone case holder is recycled. Generally, during the process of the order, the recycling information is written into the form, and then during recycling, the form is checked and cancelled.

[0039] S6, according to the recycling information, query the user order, and based on the order, issue rights and interests to the corresponding user account.

[0040] It can be understood that the rights and interests issued to the user account can be points, coupons or coupons, and the like. Specifically, because the recycling information is bound to the user order, the bound order can be retrieved through the recycling information to determine the user account and then issue the rights and interests.

[0041] In some embodiments, the working condition of the print head does not need to be checked before each job, so the print area on which the recycling information is printed is not actually replaced each time, and these print areas on which the recycling information is printed can be reused. It can be understood that the operator only needs to use part of the phone case holders that have already printed recycling information when replenishing the phone cases. This can reduce the number of test prints.

[0042] Therefore, in the present embodiment, before generating the recycling information, the following steps are further included: It can be understood that in the present embodiment, the test print area of each phone case holder is not blank (new sticker). For some recycling information holders that can be reused, the staff can mix them in when replenishing. Thus, the purpose of reducing the number of test prints and reducing the use of stickers is achieved. For example, the phone case holder with a blank sticker can be put in at a ratio of 1:4. As long as the settings are reasonable, theoretically, test printing is performed once every 5 jobs. Of course, the phone holder with a blank sticker or with recycling information can also be selected through program settings.

[0043] Therefore, before printing, the second actual image of the printing area is first obtained through the camera.

[0044] determining whether the recycling information can be obtained from the second actual image. If the recycling information is read directly by recognizing the two-dimensional code, it means that the original recycling information is pasted on the surface.

[0045] If no, and the second actual image is blank, the step of generating recycling information is performed; If yes, the recycling information corresponding to the second actual image is bound to the current order, and the steps of generating recycling information, printing recycling information, and verifying the working condition of the print head are skipped, i.e., steps S2-S4 are skipped. It can be understood that if there is original printing information in the current test printing area, the test printing and the step of verifying the test printing result are skipped, and the original recycling information is directly used. It can be understood that in this way, the number of test printing can be reduced, and the cost can be balanced under the condition that the working condition of the print head is normal.

[0046] In some embodiments, the comparison between the first actual pattern and the test printing pattern to determine whether the working condition of the print head is normal specifically comprises: reading the actual recycling information from the first actual pattern to determine whether the actual recycling information is consistent with the recycling information generated by the system; If no, it is determined that the working condition of the print head is not normal; if yes, the similarity of the first actual pattern and the test printing pattern is compared; If the image similarity is greater than a threshold, it is determined that the working condition of the print head is normal.

[0047] It can be understood that in this embodiment, whether the printed image is normal can be determined by two ways or a combination thereof. One way is to determine whether the read information is completely consistent with the recycling information generated by the system according to the reading of the two-dimensional code. If not, it can be determined that there is a problem with printing. Of course, even if the information is consistent, it does not necessarily mean that the printing result is necessarily normal, because for the two-dimensional code, there is error-tolerant information, i.e., partial information error does not affect the reading result. Therefore, color histogram, pixel contrast, etc. can be used to determine whether the image belongs to a similar image. It can be understood that if the recycling information is read the same and the image similarity is high, it means that the test printing is basically problem-free. It can be understood that different colors can be used to print the dots of the two-dimensional code in the two-dimensional code corresponding to the recycling information, so that the color correctness can be checked, thereby improving the accuracy of identifying the working condition of the print head.

[0048] Referring to Figure 2 and Figure 3 In this embodiment, the test printing area is arranged at the edge position of the mobile phone bracket. Referring to Figure 4 and Figure 5In the embodiment, the test printing area 103 is arranged at the position of the camera lens of the mobile phone shell. The hollow area 201 is generally larger than the test printing area 103, so as to adapt to different mobile phone models. The test printing area 103 is arranged as a boss in the mobile phone shell bracket 100. It can be understood that the size of the test printed image is generally smaller than the test printing area, so that even if the paper is slightly skewed, it will not affect the test printing.

[0049] Referring to Figure 6 The embodiment of the application provides a control method for printing of a mobile phone shell, comprising the following steps: A1, moving the mobile phone shell bracket to a printing station, and moving the printing head to a test printing area of the mobile phone shell bracket.

[0050] A2, acquiring a second actual image of the printing area by using a camera. The camera can be fixedly installed in the device or installed on the printing device.

[0051] A3, determining whether the recycling information can be acquired from the second actual image, if yes, executing A5, and if no, executing A4.

[0052] A4, determining whether the second actual image is a blank image, if yes, executing A6, and if no, throwing an exception. After the exception, a new mobile phone shell stock can be replaced for reprocessing. The exception is caused by a label exception of the original mobile phone shell bracket, and can be processed by replacing the stock.

[0053] A5, if the recycling information can be acquired, binding the recycling information corresponding to the second actual image to a current order, and then executing A10.

[0054] A6, generating recycling information, and generating a test printing pattern based on the recycling information, wherein the recycling information is bound to the current order.

[0055] A7, printing the test printing pattern on the test printing area by using the printing head.

[0056] A8, acquiring a first actual image of the test printing area by using the camera, and comparing the first actual image with the test printing pattern.

[0057] A9, determining whether the working condition of the printing head is normal, if yes, executing A10, and if no, throwing an exception. In the case of the printing head exception, the user can be prompted about the equipment failure, and the customer can be automatically refunded.

[0058] A10, controlling the printing head to print the mobile phone shell.

[0059] A11, when a user performs a recycling operation on the mobile phone shell bracket, reading the recycling information in the first actual image by using a code scanning head.

[0060] A12、According to the recycling information, query the user order, and based on the order, issue the rights and interests to the corresponding user account.

[0061] Embodiments of the present application provide a mobile phone shell printing device, comprising: A memory for storing a program; A processor for loading the program to execute the control method of the mobile phone shell printing device.

[0062] Embodiments of the present application provide a mobile phone shell printing device, comprising: A grabbing device for grabbing a mobile phone shell holder to a printing station, wherein the mobile phone shell holder is provided with a trial printing area, the trial printing area is provided with replaceable stickers, and the mobile phone shell holder is placed with a mobile phone shell to be printed; A printing device comprising a movable print head for printing an image; A camera for shooting the area where the mobile phone shell holder is located; A code scanner for reading the recycling information on the mobile phone shell holder; A control device for controlling the grabbing device to move the mobile phone shell holder to the printing station, controlling the printing device to move the print head above the trial printing area of the mobile phone shell holder; and generating recycling information, generating a trial printing pattern based on the recycling information, the recycling information being bound with the current order; controlling the print head to print the trial printing pattern on the trial printing area; and acquiring a first actual pattern of the trial printing area through the camera, comparing the first actual pattern with the trial printing pattern to determine whether the working condition of the print head is normal; And when the user recycles the mobile phone shell holder, the first actual pattern is read through the code scanner; according to the recycling information, the user order is queried, and the rights and interests are issued to the corresponding user account based on the order.

[0063] In some embodiments, the trial printing area of the mobile phone shell holder is arranged in the camera hollow area of the mobile phone shell, the mobile phone shell holder is provided with a boss in the area, or the trial printing area of the mobile phone shell holder is arranged in the edge area of the mobile phone shell.

[0064] In some embodiments, the control device is further configured to: acquire a second actual image of the printing area through the camera; determine whether the recycling information can be acquired from the second actual image; if not, and the second actual image is blank, execute the step of generating the recycling information; if yes, bind the recycling information corresponding to the second actual image with the current order, and skip the steps of generating the recycling information, printing the recycling information, and verifying the working condition of the print head.

[0065] In some embodiments, the trial printing pattern is a two-dimensional code comprising different color patterns.

[0066] In some embodiments, the phone case printing device stores phone case holders including phone case holders with blank trial printing stickers pasted on the partial trial printing area and phone case holders with recycling information pasted on the partial trial printing area.

[0067] The device embodiments described above are only illustrative, wherein the units illustrated as separate components can or can not be physically separated, and the components illustrated as units can or can not be physical units, i.e., can be located in one place or distributed on multiple network units. Part or all of the modules can be selected to achieve the purpose of the embodiment scheme according to actual needs. Those skilled in the art can understand and implement without creative labor.

[0068] From the above description of the embodiments, those skilled in the art can clearly understand that the embodiments can be realized by means of software plus necessary universal hardware platforms, and of course can also be realized by hardware. Based on such understanding, the above technical solutions can be embodied in the form of software products, and the computer software products can be stored in a computer readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and include a plurality of instructions for making a computer device (which can be a personal computer, a server, or a network device, etc.) execute the methods described in each embodiment or some parts of the embodiments.

[0069] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A control method for a mobile phone case printing device, characterized in that, The method comprises the following steps: moving a mobile phone shell bracket to a printing station, controlling a print head to move above a test printing area of the mobile phone shell bracket, the test printing area being provided with replaceable stickers, and the mobile phone shell bracket being provided with a mobile phone shell to be printed; generating recovery information, generating a test printing pattern based on the recovery information, and binding the recovery information with a current order; controlling the print head to print the test printing pattern on the test printing area; acquiring a first actual pattern of the test printing area through a camera, comparing the first actual pattern with the test printing pattern, and determining whether the working condition of the print head is normal; when a user performs a recovery operation on the mobile phone shell bracket, reading the recovery information in the first actual pattern through a code scanning head; based on the recovery information, querying a user order, and issuing a benefit to a corresponding user account based on the order.

2. The control method of the mobile phone case printing apparatus according to claim 1, wherein Before the step of generating the recovery information, the method further comprises the following steps: acquiring a second actual image of the printing area through the camera; determining whether the recovery information can be acquired from the second actual image; if not, and the second actual image is blank, performing the step of generating the recovery information; if yes, binding the recovery information corresponding to the second actual image with the current order, and skipping the steps of generating the recovery information, printing the recovery information, and checking the working condition of the print head.

3. The control method of the mobile phone case printing apparatus according to claim 2, characterized by, The step of comparing the first actual pattern with the test printing pattern to determine whether the working condition of the print head is normal specifically comprises the following steps: reading actual recovery information from the first actual pattern, and determining whether the actual recovery information is consistent with the recovery information generated by the system; if not, determining that the working condition of the print head is abnormal; if yes, comparing the similarity of the first actual pattern and the test printing pattern; if the image similarity is greater than a threshold value, determining that the working condition of the print head is normal. 4.The control method of the mobile phone case printing apparatus according to claim 2, characterized in that: The test printing pattern is a two-dimensional code comprising different color patterns.

5. A mobile phone case printing apparatus, characterized by, The method comprises the following steps: a memory for storing a program; a processor for loading the program to execute the control method of the mobile phone shell printing device according to any one of claims 1-4.

6. A mobile phone case printing apparatus, characterized by, The method comprises the following steps: a grabbing device for grabbing a mobile phone shell bracket to a printing station, wherein the mobile phone shell bracket is provided with a test printing area, the test printing area is provided with replaceable stickers, and the mobile phone shell bracket is provided with a mobile phone shell to be printed; a printing device comprising a movable print head for printing an image; a camera for photographing an area where the mobile phone shell bracket is located; a code scanner for reading recovery information on the mobile phone shell bracket; a control device for controlling the grabbing device to move the mobile phone shell bracket to the printing station, controlling the printing device to move the print head above the test printing area of the mobile phone shell bracket, generating recovery information, generating a test printing pattern based on the recovery information, and binding the recovery information with a current order; controlling the print head to print the test printing pattern on the test printing area; and acquiring a first actual pattern of the test printing area through the camera, comparing the first actual pattern with the test printing pattern, and determining whether the working condition of the print head is normal; and when a user performs a recovery operation on the mobile phone shell bracket, reading the recovery information in the first actual pattern through the code scanning head; based on the recovery information, querying a user order, and issuing a benefit to a corresponding user account based on the order.

7. The phone case printing apparatus of claim 6, wherein, The test printing area of the phone case holder is arranged at a camera hollow area of the phone case, and the phone case holder is provided with a boss at the area, or the test printing area of the phone case holder is arranged at an edge area of the phone case.

8. The phone case printing apparatus of claim 7, wherein, The control device is further configured to: acquire a second actual image of the printing area through the camera; determine whether the recycling information can be acquired from the second actual image; if not, and the second actual image is blank, execute the step of generating the recycling information; If yes, bind the recycling information corresponding to the second actual image with the current order, and skip the steps of generating the recycling information, printing the recycling information, and checking the working condition of the printing head.

9. The phone case printing apparatus of claim 6, wherein, The test printing pattern is a two-dimensional code including different color patterns.

10. The phone case printing apparatus of claim 6, wherein, The phone case holders stored in the phone case printing device include phone case holders with blank test printing stickers pasted on the test printing areas, and phone case holders with recycling information pasted on the test printing areas.

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