Method and device applied to printer system data verification and storage medium

Abstract

The invention discloses a method and device applied to printer system data verification and a storage medium. The method comprises the following steps that S1, RIP software processes a picture; s2, verifying the data; s3, an SWATH is generated; s4, sending the SWATH to a printer; s5, the printer accepts the SWATH; s6, SWATH printing is carried out; and S7, a printing result is recognized, and an abnormal part is judged. The problem that abnormal points cannot be better positioned through an original verification mode in the prior art is solved, the purpose of comprehensively detecting the printer is achieved, whether the printer is an upper computer or the printer can be accurately judged according to the printing result, the data consistency is further ensured through verification equipment, and the verification efficiency is improved. And the reliability of verification data is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of printers, and in particular to a method, a device and a storage medium for data verification in a printer system. Background Art

[0002] At present, the factory test of the main control board of the printer system only tests each independent board to verify whether the hardware port output is normal or not, and whether the single function is normal or not. The various boards of the printing system are not assembled for long-term testing. There will be some problems that cannot be exposed, which will lead to some problems that could have been avoided before the equipment is used by customers. At present, most of the methods are that the sender calculates the data to get the check code of the data to be sent, and the receiver calculates the check code according to the same calculation method, and compares it with the check code of the sender. If an abnormality is prompted, an alarm will be issued. In actual applications, it is possible that the original data sent by the sender to the printer has problems. The above verification method cannot confirm where the problem is. Is there a problem with the data generated by the sender, or a problem in the transmission process, or an abnormality in the memory space requested by the receiver, which leads to problems in the finished products printed by the printer, such as garbled patterns, flashing spray bars, missing data, etc., it is impossible to better locate the problem point only through the original verification method. It is necessary to cooperate with the control method to generate data to better locate the problem point. Summary of the invention

[0003] In order to solve the above-mentioned technical problems, the present invention provides a method, a device and a storage medium for data verification in a printer system.

[0004] The technical solution of the present invention is achieved in this way:

[0005] A method for data verification applied to a printer system comprises the following steps:

[0006] S1, the host computer imports the image into the RIP software, and the RIP software processes the image;

[0007] S2, after processing the image in the RIP software, the print data is sent to the print module for verification;

[0008] S3, the printing module receives the printing data and generates SWATH, and fills the SWATH with the verified calibration data;

[0009] S4, sending the SWATH filled with calibration data to the printer and storing it in the buffer area;

[0010] S5, determine whether the SWATH in the buffer area is completely received successfully. If so, perform data verification; if not, wait for SWATH to be received successfully. If it is not received successfully within the set time, it is determined that the data transmission is abnormal. If it is necessary to further determine whether the spray color and line of the nozzle are abnormal, proceed to step S9;

[0011] S6, assign all SWATH data to 0 according to the amount N required for a single inkjet of the slice nozzle, and send it to the nozzle for printing;

[0012] S7, the printing result is analyzed through image recognition. If the result shows that there is no flashing inkjet strip, it is determined that the verification data on the host computer is abnormal, and the host computer needs to be checked;

[0013] S8, the printing result is analyzed through image recognition, and the result is that a flashing inkjet strip appears. It is judged that the timing logic of the printer transmitting data to the print head is abnormal, which needs to be checked.

[0014] Preferably, in step S3, the calibration data for SWATH filling verification includes n slices, and the data filled in the slices are 0X00, 0X01, ... 0X(1+n), and the filling data of each slice is consistent.

[0015] Preferably, in step S4, before sending SWATH, a receive instruction is first sent to the printer, and the receive instruction includes the SWATH stock. When the printer determines that the SWATH stock is less than the capacity of the printer buffer area, a confirmation instruction is sent to the host computer. When the printer determines that the SWATH stock is greater than the capacity of the printer buffer area, the SWATH is divided in the host computer until the printer determines that the SWATH stock is less than the capacity of the printer buffer area and sends a confirmation instruction to the host computer, and the host computer starts sending SWATH.

[0016] Preferably, in step S5, when the SWATH data is not successfully received within the set time, the host computer is allowed to retransmit the data to the printer, and the number of retransmissions is set to 1-3 times. If the data cannot be successfully received after reaching the maximum number of retransmissions, it is judged as data transmission abnormality.

[0017] Preferably, in step S5, the data transmission integrity is checked by CRC check method, i.e., cyclic redundancy check check method. If the calculated CRC check code is consistent with the received check code, it means that the data is complete, otherwise, it means that the data is incomplete.

[0018] Preferably, in step S5, after the SWATH in the cache area is completely received successfully, the host computer and the printer simultaneously send the data to the verification machine, and the verification machine synchronously verifies the data of both parties. When the verification machine determines that the data is consistent, it proceeds to the next step. When the verification machine determines that the data is abnormal, it is judged that the printer data transmission is abnormal, and the hardware and software modules of the printer data transmission need to be checked.

[0019] Preferably, step S9 is also included, dividing the SWATH data into an upper domain and a lower domain, assigning all N required for a single inkjet of the slice nozzles in the upper domain to 0, and all N required for a single inkjet of the slice nozzles in the lower domain to 1, and sending them to the nozzles for printing.

[0020] Preferably, step S10 is also included, according to the printing result of step S9, the printing result of the upper domain is judged as step S7, the printing result of the lower domain is judged, and the color and lines of the lower domain are judged through image recognition. When the color and lines are abnormal, it is judged that the nozzle is abnormal, and the nozzle hardware structure and nozzle software driver are checked.

[0021] A device for printer system data verification includes at least one processor, at least one memory and computer program instructions stored in the memory. When the computer program instructions are executed by the processor, the above-mentioned method for obtaining pre-printing calibration data for different nozzles is implemented.

[0022] A storage medium stores computer program instructions, wherein the computer program instructions are executed by a processor to implement the above method for data verification in a printer system.

[0023] The present invention solves the problem that the prior art cannot better locate abnormal points through the original verification method, and achieves the purpose of all-round detection of printers. In addition, the present invention can accurately determine whether it is a problem with the host computer or the printer based on the printing results, and use the verification equipment to further ensure data consistency and improve the reliability of the verification data. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of a method for data verification applied to a printer system according to the present invention. DETAILED DESCRIPTION

[0025] In order to further explain the technical means and effects taken by the present invention to achieve the predetermined invention purpose, exemplary embodiments will be described in detail here, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are only examples of methods and systems consistent with some aspects of the present application as detailed in the attached claims.

[0026] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms of "a", "said" and "the" used in this application and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0027] Example 1

[0028] like Figure 1 As shown, the present invention is a method for data verification applied to a printer system, comprising the following steps:

[0029] S1, the host computer imports the image into the RIP software, and the RIP software processes the image;

[0030] S2, after processing the image in the RIP software, the print data is sent to the print module for verification;

[0031] S3, the printing module receives the printing data and generates SWATH, and fills the SWATH with the verified calibration data;

[0032] In step S3, the calibration data for SWATH filling verification is included in n slices, and the data filled in the slices are 0X00, 0X01, ... 0X(1+n), and the filling data of each slice is consistent;

[0033] S4, sending the SWATH filled with calibration data to the printer and storing it in the buffer area. In step S4, before sending the SWATH, first send a receiving instruction to the printer, the receiving instruction includes the stock of SWATH. When the printer determines that the stock of SWATH is less than the capacity of the printer buffer area, send a confirmation instruction to the host computer. When the printer determines that the stock of SWATH is greater than the capacity of the printer buffer area, the SWATH is divided in the host computer until the printer determines that the stock of SWATH is less than the capacity of the printer buffer area and sends a confirmation instruction to the host computer, and the host computer starts to send SWATH.

[0034] S5, determine whether the SWATH in the buffer area is completely received successfully. If so, perform data verification; if not, wait for SWATH to be received successfully. If it is not received successfully within the set time, it is determined that the data transmission is abnormal;

[0035] In step S5, when the SWATH data is not successfully received within the set time, the host computer is allowed to retransmit the data to the printer, and the number of retransmissions is set to 1-3 times. If the data cannot be successfully received after reaching the maximum number of retransmissions, it is judged that the data transmission is abnormal;

[0036] In step S5, the data transmission integrity is checked by CRC check method, that is, cyclic redundancy check check method. If the calculated CRC check code is consistent with the received check code, it means that the data is complete, otherwise, it means that the data is incomplete.

[0037] In step S5, after the SWATH in the buffer area is completely received successfully, the host computer and the printer simultaneously send the data to the verification machine, and the verification machine performs synchronous verification on the data of the two. When the verification machine determines that the data is consistent, it proceeds to the next step. When the verification machine determines that the data is abnormal, it is determined that the printer data transmission is abnormal, and the hardware and software modules of the printer data transmission need to be checked;

[0038] When it is necessary to further determine whether the spray color and lines of the nozzle are abnormal, proceed to step S9; when it is not necessary to further determine whether the spray color and lines of the nozzle are abnormal, proceed to step S6;

[0039] S6, assign all SWATH data to 0 according to the amount N required for a single inkjet of the slice nozzle, and send it to the nozzle for printing;

[0040] S7, the printing result is analyzed through image recognition. If the result shows that there is no flashing inkjet strip, it is determined that the verification data on the host computer is abnormal, and the host computer needs to be checked;

[0041] S8, the printing result is analyzed through image recognition, and the result is that a flashing inkjet strip appears. It is judged that the timing logic of the printer transmitting data to the print head is abnormal, which needs to be checked.

[0042] Preferably, the step S9 is also included, dividing the SWATH data into an upper domain and a lower domain, assigning all N required for a single inkjet of the slice nozzles in the upper domain to 0, and all N required for a single inkjet of the slice nozzles in the lower domain to 1, and sending them to the nozzles for printing.

[0043] Preferably, step S10 is also included, according to the printing result of step S9, the printing result of the upper domain is judged as step S7, the printing result of the lower domain is judged, and the color and lines of the lower domain are judged through image recognition. When the color and lines are abnormal, it is judged that the nozzle is abnormal, and the nozzle hardware structure and nozzle software driver are checked.

[0044] Preferably, according to the feedback information of the nozzle in S6, that is, the actual usage of the amount N required for a single ink jet of the nozzle, obtained through a flow sensor, the data assignment is dynamically adjusted;

[0045] In step S6, during printing, the deviation of the usage of the printhead to the data amount N is detected;

[0046] In step S9, when assigning values ​​to the upper domain and the lower domain slices, the assigned data amount is adjusted according to the deviation of the usage of the data amount N by the detection head. When the actual inkjet amount of the nozzle is less than the theoretical value, the data amount assigned to the upper domain and the lower domain slices can be appropriately reduced. The adjustment formula is as follows:

[0047] V 1 =V 0 *N 1 / N 2 , where V 1 is the adjusted value, V 0 is the original value, N 1 is the actual inkjet volume, N 2 is the theoretical inkjet volume, and V 1 After that, V 1 Take an integer to better match the actual working conditions of the sprinkler.

[0048] Preferably, in step S9, the number of slices in the lower domain is set to n, the data of the first slice is: 0x00, 0x01, 0x02, 0x03, the data of the second slice is: 0x04, 0x05, 0x06, 0x07, and so on, the data of the third slice is: 0x08, 0x06, 0x10, 0x11, the data of the fourth slice is: 0x12, 0x13, 0x14, 0x15, and the error slice data is set, the interval of the error data is m, and every m slices, the data group is: 0x(m+1n), 0x(m+2n), 0x(m+3n), 0x(m+4n). During data verification, for each slice in the lower domain, check whether its data conforms to the sequentially increasing mode, and also need to detect the set error data. When the verification of the error data fails, it is determined that the data transmission between the printer and the nozzle is abnormal.

[0049] It should be noted that the RIP software in the present invention is raster image processing software.

[0050] It should be noted that a method for data verification applied to a printer system in the present invention is to perform data verification when a flash occurs in the printer.

[0051] A device for printer system data verification includes at least one processor, at least one memory and computer program instructions stored in the memory. When the computer program instructions are executed by the processor, the above-mentioned method for obtaining pre-printing calibration data for different nozzles is implemented.

[0052] A storage medium stores computer program instructions, wherein the computer program instructions are executed by a processor to implement the above method for data verification in a printer system.

[0053] Example 2

[0054] This embodiment is different from Embodiment 1 and includes the following steps:

[0055] S1, establish the logs of the printer and the host computer, determine the log record content, and print task information: including file format, file size, resolution, color mode, and user-set printing parameters.

[0056] Printer status information: nozzle temperature, ink level, nozzle blockage, printer working mode.

[0057] Data verification information: data verification module settings of the host computer and embedded end, as well as verification results.

[0058] S2, record all parameters of the printer flash printing results, flash printing time: accurately record the time when the flash printing first occurs, and the specific time point of each flash printing.

[0059] Flash spray frequency: count the number of flash sprays that occur within a unit of time. You can set different time intervals for statistics, such as the number of flash sprays per minute and the number of flash sprays per hour.

[0060] Flash spray duration: records the time interval from the start to the end of each flash spray, in seconds.

[0061] Flash inkjet position information: For printer heads with positioning function, record the position information of the flash inkjet on the printed page (such as horizontal and vertical coordinates, in millimeters).

[0062] Combine print jobs and printer status records

[0063] The flash printing result parameters are associated with the current printing task information and printer status information and recorded in the log for subsequent comprehensive analysis.

[0064] S3, check the parameters, compare the parameters of the printer central processing module and the parameters of the nozzle driver module, compare the data verification settings, and check whether the data verification module settings of the host computer and the embedded end are consistent, including whether the verification and filling data modes are turned on. If the settings are inconsistent, it is determined to be a possible software setting error, which affects data transmission and verification, and then causes flash printing.

[0065] Compare the verification algorithm version numbers. If the verification algorithm versions used by the host computer and the embedded end are different, data verification may not match, and the algorithm version inconsistency may be considered abnormal.

[0066] Compare the data transmission parameters to check whether the data format and size sent by the host computer to the embedded end meet the expectations. If the data format does not match, it is judged as a data format error; if the data size differs from the expected value by more than 10%, it is judged as an abnormal data transmission volume.

[0067] Check whether the checksum during data transmission is correct. If the checksum does not match, it is determined that an error occurred during data transmission, which may cause flashing.

[0068] Compare the working status of the modules to see if the working modes of the host computer and the embedded end match. For example, when the host computer is in print mode, but the embedded end does not correctly identify it as print mode, it is determined to be a mismatch in working mode.

[0069] Check the compatibility of the driver version of the printhead drive module and the printer central processing module. When the driver version is too low or too high, it is incompatible with the central processing module and is considered to be driver compatibility abnormal.

[0070] S4, connect the verification machine to the nozzle driver and repeat the printing parameters in the printer log;

[0071] Verification machine settings, according to the print task information and printer status information in the printer log, accurately set the associated parameters on the verification machine, including file format, resolution, color mode, print quality, and paper size.

[0072] Verify the printing process, start the verification printing process of the verification machine, perform printing operations according to the set parameters, observe the inkjet conditions of the printhead, and pay special attention to whether flashing occurs.

[0073] S5, identify the printing result of S4, and judge the flashing phenomenon. When the flashing phenomenon occurs during the verification printing process, it is determined that there is an abnormality in the nozzle driver or related hardware module. Further analyze the information of the flashing frequency, duration, and location, and compare it with the actual flashing situation of the printer.

[0074] When the flash printing phenomenon does not occur during the verification printing process, it is determined that the flash printing abnormality may be caused by the actual working environment of the printer or other external factors. It is necessary to further check the external factors of the printer's connection line and power supply stability.

[0075] In addition to the flash phenomenon, the print quality inspection also needs to check other quality indicators of the print results, such as color accuracy, line clarity, and image integrity. When the color deviation exceeds a certain threshold (such as Delta E>5), it is judged as color accuracy abnormality; when the line clarity is lower than the set standard (such as the gradient change of the pixel points at the edge of the line is less than a certain value determined by the edge detection algorithm), it is judged as line clarity abnormality; when the image has missing or blurred areas exceeding a certain proportion (such as more than 10% of the image area), it is judged as image integrity abnormality.

[0076] S6, analyze the troubleshooting results of S3, software setting abnormality analysis, when it is determined that the data verification setting is wrong or the algorithm version is inconsistent, it is necessary to check the associated setting part in the software code to ensure that the data verification setting and algorithm version of the host computer and the embedded end are consistent.

[0077] For data format errors or abnormal transmission volume, it is necessary to check the data format conversion and transmission control logic in the data processing module to ensure that the data can be transmitted and processed correctly.

[0078] Preferably, in hardware anomaly analysis, when it is determined that the working mode does not match or the driver compatibility is abnormal, it is necessary to check the communication lines and interfaces between the hardware modules to ensure that the working mode can be correctly transmitted and the driver is compatible with the hardware device.

[0079] When an error occurs during data transmission and cannot be resolved through software settings, it may be caused by a hardware failure, such as damage to the data transmission line or a failure in the nozzle driver chip. In this case, you need to further check the physical connection and working status of the hardware device.

[0080] Preferably, the various parameters of the printer central processing module and the nozzle driving module are compared one by one, including data verification settings, data transmission parameters, and module working status. The differences between the two are found out through comparison. These differences may be potential causes of printer abnormalities (such as flashing inkjet).

[0081] Preferably, the classification and investigation are carried out, and the investigation results are classified according to software setting anomalies and hardware-related anomalies. For software setting anomalies, further analysis is performed to determine whether the anomalies are caused by data verification algorithms, data formats, or other software-related settings; for hardware-related anomalies, it is determined whether the anomalies are caused by module compatibility, working mode mismatch, or hardware failure.

[0082] Preferably, data verification modules are provided for the host computer and the printer, and the data verification modules need to be associated and verified. When the settings of the two are inconsistent, it is determined that the data transmission module of the printer is abnormal.

[0083] Data verification principle: In the normal data verification process, the sender and the receiver need to use the same verification algorithm and settings to ensure the integrity and accuracy of the data during transmission. If the settings are different, the receiver cannot verify the data in the way expected by the sender, and may misjudge whether the data is correct, thus affecting the normal operation of the printer.

[0084] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A method for data verification applied to a printer system, characterized in that: The steps include: S1, the host computer imports the image into the RIP software, and the RIP software processes the image; S2, after processing the image in the RIP software, the print data is sent to the print module for verification; S3, the printing module receives the printing data and generates SWATH, and fills the SWATH with the verified calibration data; S4, sending the SWATH filled with calibration data to the printer and storing it in the buffer area; S5, determine whether the SWATH in the buffer area is completely received successfully. If so, perform data verification; if not, wait for SWATH to be received successfully. If it is not received successfully within the set time, it is determined that the data transmission is abnormal; S6, assign all SWATH data to 0 according to the amount N required for a single inkjet of the slice nozzle, and send it to the nozzle for printing; S7, the printing result is analyzed through image recognition, and the result is that no flashing inkjet strip appears, so it is judged that the verification data of the host computer is abnormal; S8, the printing result is analyzed through image recognition, and the result is that a flashing inkjet bar appears, which is judged to be due to an abnormality in the timing logic of the printer transmitting data to the print head.

2. A method for data verification applied to a printer system according to claim 1, characterized in that: In step S3, the calibration data for SWATH filling verification is performed. The SWATH data includes n slices. The data filled in the slices are 0X00, 0X01, ... 0X(1+n), and the filling data of each slice is consistent.

3. A method for data verification applied to a printer system according to claim 1, characterized in that: In step S4, before sending SWATH, a receive instruction is first sent to the printer, and the receive instruction includes the SWATH inventory. When the printer determines that the SWATH inventory is less than the capacity of the printer buffer, a confirmation instruction is sent to the host computer. When the printer determines that the SWATH inventory is greater than the capacity of the printer buffer, the SWATH is divided in the host computer until the printer determines that the SWATH inventory is less than the capacity of the printer buffer and sends a confirmation instruction to the host computer, and the host computer starts sending SWATH.

4. A method for data verification applied to a printer system according to claim 1, characterized in that: In step S5, when the SWATH data is not successfully received within the set time, the host computer is allowed to retransmit the data to the printer, and the number of retransmissions is set to 1-3 times. If the data cannot be successfully received after reaching the maximum number of retransmissions, it is judged that the data transmission is abnormal.

5. The method for data verification applied to a printer system according to claim 1, characterized in that: In step S5, the data transmission integrity is checked by CRC check method, that is, cyclic redundancy check check method. If the calculated CRC check code is consistent with the received check code, it means that the data is complete, otherwise, it means that the data is incomplete.

6. A method for data verification applied to a printer system according to claim 1, characterized in that: In step S5, after the SWATH in the buffer area is completely received successfully, the host computer and the printer send the data to the verification machine at the same time, and the verification machine synchronously verifies the data of both. When the verification machine determines that the data is consistent, it proceeds to the next step. When the verification machine determines that the data is abnormal, it is judged that the printer data transmission is abnormal, and the hardware and software modules of the printer data transmission need to be checked.

7. A method for data verification applied to a printer system according to claim 1, characterized in that: It also includes step S9, dividing the SWATH data into an upper domain and a lower domain, assigning all N values ​​required for a single inkjet of the slices in the upper domain to 0, and all N values ​​required for a single inkjet of the slices in the lower domain to 1, and sending them to the nozzles for printing.

8. The method for data verification applied to a printer system according to claim 1, characterized in that: The method also includes step S10, which determines the printing result of the upper domain as in step S7 according to the printing result of step S9, and determines the printing result of the lower domain. The color and lines of the lower domain are determined by image recognition. When the color and lines are abnormal, it is determined that the nozzle is abnormal, and the nozzle hardware structure and nozzle software driver are checked.

9. A device for printer system data verification, comprising at least one processor, at least one memory and computer program instructions stored in the memory, wherein when the computer program instructions are executed by the processor, the method described in any one of claims 1 to 8 is implemented.

10. A storage medium having computer program instructions stored thereon, characterized in that: When the computer program instructions are executed by a processor, the method described in any one of claims 1 to 8 is implemented.

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