Dot paper overprint structure based on dot paper pen technology
Patent Information
- Application Number
- CN202522456736.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-19
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-11-19
AI Technical Summary
[0005]本实用新型的目的是克服上述关于点阵纸单独打印成本高且精度要求不达标的技术问题,本实用新型是通过以下技术方案来实现的:
1.显著降低综合成本,提升经济性与普适性
Smart Images

Figure CN224781572U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of printing paper technology based on dot matrix paper pen technology, specifically a dot matrix paper overprinting structure based on dot matrix paper pen technology. Background Technology
[0002] The core working principle of existing dot-matrix pens is based on a special dot-matrix encoded paper. This paper is printed with micro-dot patterns, also called dot-matrix codes, arranged according to specific algorithms and imperceptible to the naked eye. These micro-dots form a unique, machine-readable absolute coordinate system covering the entire paper surface. When the pen tip is pressed down, a pressure sensor is triggered, activating a built-in high-speed camera that captures images of the dot matrix the pen tip passes through at 100 frames per second. The built-in processor decodes the dot-matrix image, thus determining the paper number and the x and y coordinates of the pen tip on the paper. Information such as dot coordinates, handwriting sequence, pressure data, and movement speed is output via Bluetooth or Wi-Fi communication and ultimately transmitted to the application system. The handwriting of students and teachers on the paper can be seamlessly collected and perfectly reproduced in the application system.
[0003] In traditional dot matrix paper-and-pen applications, the system directly generates dot codes and attaches them to documents (such as homework questions, exam questions, etc.) to form a document file with dot codes. After the file is printed, it is sent to the user (such as a student) to write their answers. The dot matrix pen collects the user's handwriting data, and the application system intelligently analyzes and corrects the user's answers. However, in-depth research has revealed that existing technical solutions still have many inherent technical defects and limitations. (1) General printers have limited resolution capabilities and take a long time to print paper with dot matrix codes, often failing to meet the needs of schools with large-scale printing.
[0004] (2) Because dot matrix codes require high precision from the printer, general school printers or home printers cannot meet the printing requirements; and in order to ensure the printing effect, original consumables are required, which increases the printing cost; after the printing volume reaches a certain number of pages, due to component wear and inadequate maintenance, the precision of the printer will gradually decrease, which will lead to the substandard quality of the dot matrix codes in subsequent printing jobs, thus affecting the collection of handwriting data. Utility Model Content
[0005] The purpose of this utility model is to overcome the aforementioned technical problems of high cost and insufficient precision requirements for printing on dot matrix paper separately. This utility model achieves this through the following technical solution: A dot matrix paper overprinting structure based on dot matrix paper-pen technology includes printing paper and an overprinting master. The overprinting master is printed on the printing paper and includes dot matrix codes, correction frames, and numbering frames. The dot matrix codes cover the surface of the printing paper. There is at least one correction frame for observing the degree of overprinting deviation. The numbering frames are used to fill in and verify document numbers.
[0006] As an improvement to the above solution, the overprinting master also includes a laying code number, with each sheet of the printing paper having a corresponding unique laying code number.
[0007] As an improvement to the above solution, a sub-plate for overprinting is also included. The size of the sub-plate matches the size of the printing paper and the master plate. The sub-plate is overprinted on the master plate and includes correction points, document numbers, and document content boxes. The correction points are matched with the correction boxes, and their positions correspond to the center positions of the correction boxes. The document numbers are set on the outer periphery of the numbering boxes and are used to fill in the numbering boxes. The document content boxes are used to fill in document information.
[0008] As an improvement to the above solution, the correction point is a hollow circle, which facilitates filling and identification.
[0009] As an improvement to the above scheme, the correction frame includes a positioning point and an offset check threshold frame; the positioning point is set at the center of the correction frame, and the offset check threshold frame is set between the correction frame and the positioning point with the positioning point as the center.
[0010] As an improvement to the above solution, the overprinting master plate is set in the first printer, and the overprinting sub-plate is set in the second printer. The first printer is a high-precision printing machine specially designed for mass production in a printing plant; the second printer is a printer for general users.
[0011] As an improvement to the above solution, the correction frame and correction point are set in multiple groups and respectively set around the outer perimeter of the document content frame.
[0012] As an improvement to the above scheme, the correction frame is square and the offset check threshold frame is circular, both centered on the positioning point.
[0013] As an improvement to the above solution, the correction frame also includes a crosshair, the center point of which coincides with the positioning point.
[0014] This utility model has the following beneficial effects: 1. Significantly reduces overall costs, improving economic efficiency and universality. Dot matrix codes are printed in batches by high-precision professional printers (such as printing plants), giving full play to their efficiency and accuracy advantages; while overprinting document content can be completed using ordinary printers (such as school and home printers), avoiding the stringent requirements on the accuracy of end-user printers and reducing the dependence on expensive original consumables.
[0015] The efficiency of mass printing dot matrix paper is far higher than printing documents with dot matrix codes one copy at a time, perfectly solving the bottleneck problem of mass printing in scenarios such as schools, improving efficiency and adapting to large-scale applications.
[0016] 2. Innovatively solved the alignment accuracy problem in the overprinting process. It provides an effective correction mechanism, employing a unique visual alignment and detection system with "correction boxes" and "correction points" to effectively identify and quantify positional deviations occurring during the printing process. It offers a multi-level correction scheme, from automatic offset calculation to manual intervention, to promptly correct writing position shifts caused by misaligned printed content, thus ensuring the accuracy of handwriting data. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overprinting master structure of this utility model; Figure 2 for Figure 1 A magnified view of a portion of region A in the middle; Figure 3 This is a schematic diagram of the overprinting plate of this utility model; Figure 4 This is a diagram illustrating the practical application effect of the dot matrix paper overprinting structure of this utility model.
[0018] Explanation of reference numerals in the attached diagram: 1. Crosshair, 2. Overprint master, 3. Overprint sub-plate, 4. Dot matrix code, 5. Correction box, 6. Number box, 7. Correction point, 8. Document number, 9. Document content box, 10. Positioning point, 11. Offset check threshold box, 12. Detailed Implementation
[0019] Example like Figures 1 to 4As shown, the dot matrix paper overprinting structure based on dot matrix paper-pen technology includes printing paper, an overprinting master plate 2, and an overprinting sub-plate 3. The overprinting master plate 2 is printed on the printing paper and includes dot matrix codes 4, correction frames 5, numbering frames 6, and laying code numbers 7. The dot matrix codes 4 cover the surface of the printing paper. The correction frames 5 are used to observe the degree of overprinting deviation. The numbering frames 6 are used to fill in and verify document numbers 9. Each sheet of printing paper has a corresponding unique laying code number 7. The size of the overprinting sub-plate 3 matches the size of the printing paper and the overprinting master plate 2. The overprinting sub-plate 3 is overprinted on the overprinting master plate 2 and includes correction points 8, document numbers 9, and document content frames 10. The correction points 8 are matched with the correction frames 5 and are hollow circles for easy filling and identification. Their positions correspond to the center position of the correction frames 5. The document numbers 9 are set on the outer periphery of the numbering frames 6 and are used to fill in the numbering frames 6. The document content frames 10 are used to fill in document information. The correction frame 5 includes a positioning point 11 and an offset check threshold frame 12. The positioning point 11 is located at the center of the correction frame 5, and the offset check threshold frame 12 is located between the correction frame 5 and the positioning point 11, with the positioning point 11 as the center. The overprinting master plate 2 is located in a first printer, and the overprinting sub-plate 3 is located in a second printer. The first printer is a high-precision printing machine specifically designed for mass production in a printing plant; the second printer is a printer used by general users. The correction frame 5 and correction points 8 are set in multiple groups, respectively located around the document content frame 10. The correction frame 5 is square, and the offset check threshold frame 12 is circular, both centered on the positioning point 11. The correction frame 5 also includes a crosshair 13, the center of which coincides with the positioning point 11.
[0020] This structure separates the printing process of dot matrix code 4 from the overprinting information, uses high-precision equipment to print dot matrix code 4 in a concentrated manner, and then uses a regular printer to complete the overprinting, which effectively reduces the overall printing cost and improves the printing quality and production efficiency of dot matrix paper.
[0021] By setting the correction box 5 and correction point 8, the positional deviation during the printing process can be effectively detected and corrected, and the writing position deviation caused by the offset of the printed content can be corrected in a timely manner, thereby improving the accuracy of data collection and the reliability of the system.
[0022] In actual operation: A master printing plate 2 is set on the first printer (a high-precision printing machine specifically for batch printing in a printing plant), and the master printing plate 2 is printed onto the printing paper; then, a sub-master printing plate 3 is set on the second printer (a printer for general users), and the sub-master printing plate 3 is overprinted onto the printing paper printed with the master printing plate 2. The correction points 8 and correction frames 5 are used to correct any misalignment in the printed position after overprinting. 1. Set the correction point 8 to be consistent with the position of the positioning point 11 in the correction frame 5 of the batch dot matrix paper; 2. After printing to the actual application dot matrix paper, observe the position of the correction point 8 before use. If the correction point 8 falls within the offset check threshold box 12, no correction operation is required. 3. If the correction point 8 falls between the offset check threshold box 12 and the correction box 5, then fill the correction point 8 with a dot matrix pen. The offset of the overprint information can be calculated by the data analysis module and corrected on the user terminal platform. 4. If the correction point 8 falls outside the correction frame 5, the platform personnel need to be notified to manually measure the offset and make corrections.
[0023] This dot matrix paper overprinting structure, through its corrective features, can flexibly handle different degrees of overprinting deviation, balancing automated processing with manual intervention, and ensuring the accuracy and usability of the final overprinting result.
[0024] The above detailed description is a specific description of a feasible embodiment of the present utility model. This embodiment is not intended to limit the patent scope of the present utility model. All equivalent implementations or modifications that do not depart from the present utility model should be included in the patent scope of this case.
Claims
1. A dot-matrix paper overprinting structure based on dot-matrix paper-pen technology, characterized in that, The system includes printing paper and a master printing plate. The master printing plate is printed on the printing paper and includes dot matrix codes, correction frames, and numbering frames. The dot matrix codes cover the surface of the printing paper. There is at least one correction frame, which is used to observe the degree of registration deviation. The numbering frames are used to fill in and verify document numbers.
2. The dot matrix paper overprinting structure based on dot matrix paper-pen technology according to claim 1, characterized in that, The overprinting master also includes a layout number, with each sheet of printing paper having a unique layout number.
3. The dot matrix paper overprinting structure based on dot matrix paper-pen technology according to claim 1, characterized in that, It also includes a printing plate, which is overprinted on the printing master plate. The printing plate includes correction points, document numbers, and document content boxes. The correction points are matched with the correction boxes, and their positions correspond to the center positions of the correction boxes. The document numbers are set on the outer periphery of the numbering boxes and are used to fill in the numbering boxes. The document content boxes are used to fill in document information.
4. The dot matrix paper overprinting structure based on dot matrix paper-pen technology according to claim 1, characterized in that, The correction frame includes a positioning point and an offset check threshold frame; the positioning point is set at the center of the correction frame, and the offset check threshold frame is set between the correction frame and the positioning point with the positioning point as the center.
5. The dot matrix paper overprinting structure based on dot matrix paper-pen technology according to claim 3, characterized in that, The overprinting master plate is installed in the first printer, and the overprinting sub-plate is installed in the second printer. The first printer is a high-precision printing machine specially designed for mass production in a printing plant; the second printer is a printer for general users.
6. The dot matrix paper overprinting structure based on dot matrix paper-pen technology according to claim 3, characterized in that, The aforementioned correction boxes and correction points are set in multiple groups, and are respectively set around the outer perimeter of the document content box.
7. The dot matrix paper overprinting structure based on dot matrix paper-pen technology according to claim 3, characterized in that, The correction points are hollow circles, which facilitate filling and identification.
8. The dot matrix paper overprinting structure based on dot matrix paper-pen technology according to claim 4, characterized in that, The correction frame is square, and the offset check threshold frame is circular, both centered on the positioning point.
9. The dot matrix paper overprinting structure based on dot matrix paper-pen technology according to claim 4, characterized in that, The correction frame also includes a crosshair, the center point of which coincides with the positioning point.