Laser printer with intelligent paper recognition function

Abstract

The utility model discloses a laser printer with an intelligent paper identification function. The laser printer comprises a paper taking box, a laser printer body, a paper taking device, a position sensor, a paper type sensor and a main control board, wherein the paper taking device is used for feeding paper placed on the paper taking box into the laser printer body; the position sensor is arranged on the paper taking box and used for recognizing the position of paper placed on the paper taking box. The paper type sensor is arranged on the paper taking box and is used for identifying the type of paper placed on the paper taking box; the main control board is used for synchronously adjusting the printing range of the laser printer body according to the paper position recognized by the position sensor and synchronously adjusting printing parameters of the laser printer body according to the paper type recognized by the paper type sensor. According to the utility model, the position of the paper can be automatically identified, the printing range can be synchronously adjusted, the type of the paper can be automatically identified, and the printing parameters can be synchronously adjusted.

Description

Technical Field

[0001] This utility model relates to the field of printer technology, specifically to a laser printer with intelligent paper recognition function. Background Technology

[0002] Laser printers are printing devices that utilize laser scanning and electrostatic imaging technology. The core principle is to form an electrostatic latent image on the photosensitive drum through a laser beam, which then attracts toner, transfers it to paper, and is heated and fixed. They are widely used in office, business, and professional printing fields.

[0003] Existing laser printers have the following drawbacks:

[0004] 1. Paper type recognition relies on manual user settings, which can easily lead to parameter mismatches. For example, if a user selects heavy paper but chooses plain paper in the driver, the printer cannot identify this error. In industries such as finance, public security, and confidentiality, overprinting is common, and printing errors can cause significant damage to the original document.

[0005] 2. Ordinary laser printers cannot currently print household registration books. The commonly used household registration books in China are printed on 80g / ㎡ paper, consisting of 5 sheets, with the middle section sewn together with stitching.

[0006] 3. Ordinary laser printers have a fixed scanning range for the Laser Scanning Unit (LSU) and only support centered printing. This places high demands on the user's paper loading, requiring the use of a left-right adjuster for centered placement, resulting in low printing position accuracy. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides a laser printer with intelligent paper recognition function, which can automatically identify the position of the paper and synchronously adjust the printing range, and can also automatically identify the type of paper and synchronously adjust the printing parameters.

[0008] This utility model provides a laser printer with intelligent paper recognition function, including a paper tray, a laser printer body, and a paper feeder for feeding paper placed on the paper tray into the laser printer body, and further including:

[0009] A position sensor is provided on the paper dispenser to identify the position of the paper placed on the paper dispenser;

[0010] A paper type sensor, disposed on the paper dispenser, for identifying the type of paper placed on the paper dispenser; and...

[0011] The main control board is used to synchronously adjust the printing range of the laser printer body according to the paper position identified by the position sensor, and simultaneously adjust the printing parameters of the laser printer body according to the paper type identified by the paper type sensor.

[0012] Furthermore, the position sensor is a linear array CIS sensor distributed along the width direction of the paper tray.

[0013] Furthermore, the paper type sensor is a piezoelectric thickness sensor located in the middle of the paper dispenser.

[0014] Furthermore, it also includes an RFID identification module, which is located on the paper dispenser and is used to read data from the paper containing special RFID data.

[0015] Furthermore, the RFID identification module is located in the middle of the paper dispenser.

[0016] Furthermore, the paper feeder includes a paper feed roller, a paper separating friction plate disposed below the paper feed roller, a paper feed roller and a paper feed driven roller disposed behind the paper feed roller and the paper separating friction plate, wherein the paper feeding force F1 between the paper feed roller and the paper feed driven roller is ≤3N, and the paper feeding force F2 of the paper feed roller pressing against the paper separating friction plate is ≤10N.

[0017] Furthermore, the paper tray has a built-in data board, the input end of which is electrically connected to each of the sensors, and the output end of which is electrically connected to the main control board.

[0018] The beneficial effects of this utility model are reflected in:

[0019] (1) This application can automatically identify the position of the paper placed on the paper tray by the position sensor, and automatically adjust the laser printing range of the laser printer by the identified paper position. When printing, the user only needs to place the paper on the paper tray, without adjusting the paper clamping mechanism, which is convenient and fast.

[0020] (2) This application can automatically identify the type of paper placed on the paper tray by the paper type sensor, and automatically adjust the printing parameters of the laser printer by the identified paper type, saving the trouble of manual setting, making it convenient for users to print, avoiding users from selecting the wrong paper type or not knowing the paper type, resulting in the printing of physical objects, and improving the success rate of paper printing in special occasions. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the paper-taking box according to an embodiment of the present invention;

[0024] Figure 3 This is a cross-sectional view of the paper feeder according to an embodiment of the present invention;

[0025] Figure 4 This is a control flowchart of an embodiment of the present utility model.

[0026] In the attached diagram, 100 is the paper tray; 200 is the laser printer body; 300 is the paper feeder; 310 is the paper feed roller; 320 is the paper separation friction plate; 330 is the paper feed roller; 340 is the paper feed driven roller; 400 is the position sensor; 500 is the paper type sensor; and 600 is the RFID identification module. Detailed Implementation

[0027] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0028] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0029] like Figures 1-4 As shown, this utility model embodiment provides a laser printer with intelligent paper recognition function, including a paper tray 100, a laser printer body 200, a paper feeder 300 for feeding paper placed on the paper tray 100 into the laser printer body 200, a position sensor 400, a paper type sensor 500, and a main control board.

[0030] A position sensor 400 is provided on the paper tray 100 to identify the position of the paper placed on the paper tray 100.

[0031] In this embodiment, the position sensor 400 is a linear array CIS sensor distributed along the width direction of the paper tray 100. The linear array CIS sensor is a linear contact image sensor, which consists of a row of densely packed photodiodes (pixel units). Each pixel corresponds to a fixed physical position (e.g., a spacing of Δdmm). When paper is placed on the paper tray 100, the linear array CIS sensor scans the paper area line by line. The light intensity at the edge of the paper will change abruptly, thereby determining the paper position on the paper tray 100.

[0032] In this embodiment, the linear CIS sensor has a resolution of 600 dpi, a paper position recognition accuracy error of less than 0.5 mm, and a maximum recognition width of 210 ± 0.2 mm.

[0033] A paper type sensor 500 is provided on the paper tray 100 to identify the type of paper placed on the paper tray 100.

[0034] In this embodiment, the paper type sensor 500 is a piezoelectric thickness sensor located in the middle of the paper tray 100. Paper types are categorized as thin paper (≤60g / m²), ordinary paper (60g / m²~90g / m²), thicker paper (90g / m²~120g / m²), heavy paper (120g / m²~160g / m²), heavyweight paper (160g / m²~220g / m²), transparent paper (thickness below 0.2mm), and others (booklet-type paper, including household registration books, passbooks, membership books, etc.). In this embodiment, the paper type can be determined by identifying the paper thickness using a piezoelectric thickness sensor.

[0035] The main control board is used to synchronously adjust the printing range of the laser printer body 200 according to the paper position identified by the position sensor 400, and at the same time, to synchronously adjust the printing parameters of the laser printer body 200 according to the paper type identified by the paper type sensor 500.

[0036] In this embodiment, the paper tray 100 has a built-in data board. The input end of the data board is electrically connected to each sensor, and the output end of the data board is electrically connected to the main control board, thereby enabling data interaction with the motherboard.

[0037] In this embodiment, the printing parameters include printing speed, high pressure parameters, and fixing temperature. When selecting the fixing temperature according to the paper type, it is also necessary to be compatible with the ambient temperature.

[0038] This application can automatically identify the position of the paper placed on the paper tray 100 through the position sensor 400, and automatically adjust the laser printing range of the laser printer based on the identified paper position. When printing, the user only needs to place the paper on the paper tray 100, without adjusting the paper clamping mechanism, which is convenient and quick.

[0039] Furthermore, this application can automatically identify the type of paper placed on the paper tray 100 through the paper type sensor 500, and automatically adjust the printing parameters of the laser printer based on the identified paper type, eliminating the trouble of manual settings, making printing more convenient for users, avoiding printing errors caused by users selecting the wrong paper type or not knowing the paper type, and improving the success rate of paper printing in special occasions.

[0040] In addition, the LSU laser printing range and printing fixing temperature are adjustable, reducing printer energy consumption.

[0041] This embodiment also includes an RFID identification module 600, which is located on the paper tray 100, specifically in the middle of the paper tray 100. The RFID identification module 600 is used to read data from paper containing special RFID data. When printing on paper containing special RFID data, the RFID identification module 600 reads the data from the paper and sends it back to the laser printer. If the laser printer recognizes the information as legitimate and not expired, printing can proceed, assisting in the management and dissemination of confidential documents. If the medium is counterfeit or expired, a pop-up alarm will be triggered. After each printing, the RFID chip inside the paper records the printing data, printing time, number of prints, printing location, etc. In this way, encrypted identity information is automatically written to the chip during the printing process, effectively managing household registration books and related security documents. This is suitable for building a "household registration hall - mobile policing - file management" scenario combination.

[0042] In this embodiment, the paper feeder 300 includes a paper feed roller 310, a paper separating friction plate 320 disposed below the paper feed roller 310, a paper feed roller 330 and a paper feed driven roller 340 disposed behind the paper feed roller 310 and the paper separating friction plate 320. The paper feeding force F1 between the paper feed roller 330 and the paper feed driven roller 340 is ≤3N, and the paper feeding force F2 of the paper feed roller 310 pressing against the paper separating friction plate 320 is ≤10N, which is suitable for household registration book paper types.

[0043] It should be noted that the paper tray 100 in this embodiment only supports single-page printing. For special usage scenarios, such as continuous printing, the standard paper tray configured for the printer can be used. The standard paper tray has a smaller range of paper types and printing capabilities than the smart multi-function paper tray.

[0044] The laser printer provided in this embodiment is particularly suitable for processing special paper (such as household registration booklets) and for dynamically adjusting printing parameters. It is suitable for high-precision printing scenarios, passbook printing scenarios in the financial sector, and application scenarios with confidentiality requirements.

[0045] like Figure 4 As shown, this utility model embodiment also provides a control method for the above-mentioned laser printer with intelligent paper recognition function, including the following steps:

[0046] Step S10: The user places the paper on the paper tray 100 and sends the job.

[0047] In step S20, the position sensor 400 identifies the position information of the paper placed on the paper tray 100, and the paper type identifier 500 identifies the type information of the paper placed on the paper tray 100.

[0048] In step S30, the main control board receives paper position and paper type information, sets the corresponding LSU laser printing range according to the received paper position information, and sets the printing parameters according to the received paper type information.

[0049] Step S40: Print according to the set LSU laser printing range and printing parameters.

[0050] In step S30, the main control board sets the printing parameters according to the received paper type information as follows:

[0051] Step K1: Establish a printing parameter database, which includes various paper types and the corresponding printing parameters for each paper type.

[0052] Step K2 involves comparing the received paper type information with the data in the printing parameter database to determine the printing parameters corresponding to that paper type.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A laser printer with intelligent paper recognition function, comprising a paper tray, a laser printer body, and a paper feeder for feeding paper placed on the paper tray into the laser printer body, characterized in that, Also includes: A position sensor is provided on the paper dispenser to identify the position of the paper placed on the paper dispenser; A paper type sensor, disposed on the paper dispenser, for identifying the type of paper placed on the paper dispenser; and... The main control board is used to synchronously adjust the printing range of the laser printer body according to the paper position identified by the position sensor, and simultaneously adjust the printing parameters of the laser printer body according to the paper type identified by the paper type sensor.

2. The laser printer with intelligent paper recognition function according to claim 1, characterized in that: The position sensor is a linear array CIS sensor distributed along the width direction of the paper tray.

3. The laser printer with intelligent paper recognition function according to claim 1, characterized in that: The paper type sensor is a piezoelectric thickness sensor located in the middle of the paper dispenser.

4. The laser printer with intelligent paper recognition function according to claim 1, characterized in that: It also includes an RFID identification module, which is located on the paper dispenser and is used to read data from the paper containing special RFID data.

5. The laser printer with intelligent paper recognition function according to claim 4, characterized in that: The RFID identification module is located in the middle of the paper dispenser.

6. The laser printer with intelligent paper recognition function according to claim 1, characterized in that: The paper feeder includes a paper feed roller, a paper separating friction plate located below the paper feed roller, a paper feed roller and a paper feed driven roller located behind the paper feed roller and the paper separating friction plate, wherein the paper feeding force F1 between the paper feed roller and the paper feed driven roller is ≤3N, and the paper feeding force F2 of the paper feed roller pressing against the paper separating friction plate is ≤10N.

7. The laser printer with intelligent paper recognition function according to claim 1, characterized in that: The paper tray has a built-in data board. The input end of the data board is electrically connected to each of the sensors, and the output end of the data board is electrically connected to the main control board.

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