Printer static elimination device and printer
By using electrode wires and an AC high-voltage generator in the printer to generate positive and negative ions to eliminate static electricity on the paper, the problem of poor static electricity discharge for multi-page sheets is solved, improving print quality and efficiency while reducing structural complexity and cost.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-24
AI Technical Summary
Existing printers have poor electrostatic discharge performance when removing multi-page media such as passbooks, which can easily lead to paper jams and poor print quality.
Using a pair of electrode wires and an AC high-voltage generator, positive and negative ions are alternately generated by ionizing air. The static electricity on the paper is consumed by the airflow during paper transport. Combined with the static discharge device, unneutralized ions are discharged, thus achieving non-contact static elimination.
It significantly improves the static elimination effect of multi-page paper, reduces the probability of paper jams, improves the quality and efficiency of printed images, simplifies the structure, and reduces costs.
Smart Images
Figure CN224035778U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of printing equipment technology, specifically to a static electricity elimination device for printers and a printer. Background Technology
[0002] A printer is a computer output device used to print computer-processed results onto various media. During operation, printers handle paper, and the friction between sheets can generate static electricity. This static electricity can affect paper feed speed and stability, increase the likelihood of paper jams, and even interfere with toner transfer in the printer's electro-imaging process, leading to degraded image quality. Therefore, it is necessary to eliminate static electricity within the printer.
[0003] Existing printers primarily use passive methods to discharge static electricity, such as conductive rubber rollers, metal rollers, and static-eliminating brushes. For example, ... Figure 1 As shown, an electrostatic discharge sheet metal 10' is provided between the printer's calibration module 6' and toner cartridge module 7', and an electrostatic discharge brush 11' is provided at the front end of the calibration module 6'. This method can effectively eliminate charge for single-sheet media, but for multi-sheet media, such as passbooks, the electrostatic discharge effect is low due to the poor conductivity between the sheets, which can easily lead to paper jams and poor print quality. Utility Model Content
[0004] In view of this, the present invention provides a printer static elimination device and a printer to solve the problem that the static elimination effect of existing printers is poor, which easily leads to paper jams or even poor print quality.
[0005] In a first aspect, this utility model provides a printer static elimination device, comprising:
[0006] The housing has a sealed cavity inside. On opposite sides of the housing, there are paper inlet and paper outlet communicating with the cavity, and a conveying channel for paper movement is formed between the paper inlet and the paper outlet.
[0007] A pair of electrode wires are disposed in the cavity and are located on opposite sides of the conveying channel;
[0008] An AC high-voltage generator has its output terminals electrically connected to a pair of electrode wires, which are used to ionize air and alternately generate positive and negative ions within the cavity.
[0009] Beneficial effects: the utility model discloses a pair of electrode filaments is provided with alternating positive and negative ions in the cavity, and the positive and negative ions can act on the paper when the paper is conveyed, so that the static electricity on the paper is actively consumed, and the static electricity elimination effect of each paper is improved, the quality of the printed image is improved, the conveying abnormal probability caused by static electricity adsorption is reduced, and the printing efficiency is improved.
[0010] In an alternative embodiment, the paper inlet and the paper outlet are respectively provided with static electricity leading-out members, which can close the paper inlet and the paper outlet and leave gaps for the paper to enter and exit.
[0011] Beneficial effects: the static electricity leading-out members can lead out the unneutralized positive and negative ions, and prevent the positive and negative ions in the cavity from overflowing and affecting the normal use of other parts of the printer.
[0012] In an alternative embodiment, the static electricity leading-out members include at least one of a static electricity removing brush, a static electricity removing strip and a conductive pad.
[0013] Beneficial effects: the static electricity leading-out members include at least one of a static electricity removing brush, a static electricity removing strip and a conductive pad, and are simple in structure and low in use cost.
[0014] In an alternative embodiment, the alternating current high-voltage generator is used to raise the alternating voltage to above 7000 volts and periodically output positive and negative high voltages.
[0015] Beneficial effects: the alternating current high-voltage generator raises the alternating voltage to above 7000 volts to provide high voltage, which is beneficial to ionizing the air by the electrode filaments to form positive and negative ions, and the alternating current high-voltage generator periodically outputs positive and negative high voltages to enable the pair of electrode filaments to alternately form positive and negative ions, thereby improving the static electricity elimination effect.
[0016] In an alternative embodiment, a pair of the electrode filaments are fixed to the inner wall of the shell to generate the positive and negative ions filling the cavity.
[0017] Beneficial effects: the two electrode filaments are fixed to the inner wall of the shell and arranged above and below the conveying channel, respectively, to generate the positive and negative ions filling the cavity, and each paper can be in full contact with the positive and negative ions after the multiple papers enter the cavity, thereby further improving the static electricity elimination effect of each paper.
[0018] In a second aspect, the utility model also provides a printer, which comprises:
[0019] A paper taking box is arranged for placing paper sheets;
[0020] A separating module is arranged at the outlet of the paper taking box for carrying the paper sheets;
[0021] A correction module is arranged at the outlet of the separating module for guiding the paper sheets, and a toner cartridge module is arranged opposite to the correction module for printing images on the paper sheets;
[0022] The electrostatic elimination device is arranged between the correction module and the toner cartridge module.
[0023] Beneficial effects: Because the printer includes the electrostatic elimination device, the same effects as the electrostatic elimination device are achieved, i.e. the air in the cavity is ionized by providing AC high voltage to a pair of electrode wires, and positive and negative ions are alternately generated. When the paper sheets enter the conveying channel of the cavity from the paper taking port, the positive and negative ions can act on the paper sheets by using the air flow during the conveying of the paper sheets, and the static electricity on the paper sheets is actively consumed. For the printing of multiple paper sheets such as passbooks, the static electricity of the multiple paper sheets is eliminated by non-contact charge consumption, thereby significantly improving the static electricity elimination effect of each paper sheet, improving the quality of the printed images, reducing the probability of conveying abnormalities caused by static electricity adsorption, and improving the printing efficiency.
[0024] In an optional embodiment, a high voltage plate is further included, and the input end of the AC high voltage generator is electrically connected to the high voltage plate.
[0025] Beneficial effects: The input end of the AC high voltage generator of the electrostatic elimination device is electrically connected to the high voltage plate, and the high voltage plate supplies power to the AC high voltage generator, so that an additional power supply is not needed for the electrostatic elimination device, the structure of the electrostatic elimination device can be simplified, and the use cost is reduced.
[0026] In an optional embodiment, the correction module includes a driving roller, a driven roller, and a driving member, the driving roller is connected to the driving member, and a gap is left between the driving roller and the driven roller for the paper sheets to pass through.
[0027] Beneficial effects: The paper sheets pass through the gap between the driving roller and the driven roller, and the driving roller and the driven roller can help the paper sheets to be accurately guided from the separating module to the electrostatic elimination device, thereby ensuring the stability of the conveying of the paper sheets.
[0028] In an optional embodiment, the driving roller and the driven roller are arranged in the up-down direction, and the driven roller is located above the driving roller.
[0029] Beneficial effects: The upper and lower arranged driving roller and driven roller are perpendicular to the paper conveying path, proper pressure is applied to the paper by the driving roller and driven roller, and the paper can be kept flat and aligned during conveying, so that misalignment or skew of the paper is avoided.
[0030] In an alternative embodiment, further comprising: a fixing module arranged at the outlet of the selenium drum module, used for fixing the image on the paper.
[0031] Beneficial effects: The fixing module melts and presses the carbon powder into the paper fibers by heating and applying pressure, so that the carbon powder is firmly attached to the surface of the paper, and the carbon powder is prevented from falling off, thereby improving the printing quality. BRIEF DESCRIPTION OF DRAWINGS
[0032] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.
[0033] Figure 1 The existing printer electrostatic elimination structure;
[0034] Figure 2 The structure diagram of the printer electrostatic elimination device of the embodiment of the present application;
[0035] Figure 3 The front view of the printer electrostatic elimination device of the embodiment of the present application;
[0036] Figure 4 The structure diagram of the printer electrostatic elimination device of the embodiment of the present application installed on the printer;
[0037] Figure 5 The local structure diagram of the printer of the embodiment of the present application.
[0038] Explanation of reference signs:
[0039] Prior art: 6', correction module; 7', selenium drum module; 10', electrostatic guide sheet metal; 11', electric brush;
[0040] The present application: 1, shell; 101, cavity; 102, paper inlet; 103, paper outlet; 2, electrode wire; 3, electrostatic guide; 4, paper taking box; 5, separation module; 6, correction module; 601, driving roller; 602, driven roller; 7, selenium drum module; 8, fixing module; 9, paper. DETAILED DESCRIPTION
[0041] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.
[0042] The embodiments of the present application will be described below with reference to the drawings. Figures 2 to 5
[0043] According to the embodiments of the present application, on the one hand, as shown in Figures 2 to 4 , a printer static electricity elimination device is provided, comprising: a shell 1, a pair of electrode wires 2 and an alternating current high-voltage generator; the shell 1 is internally provided with a sealed cavity 101, opposite sides of the shell 1 are respectively provided with a paper feeding port 102 and a paper discharging port 103 which are in communication with the cavity 101, and a conveying channel for moving paper sheets 9 is formed between the paper feeding port 102 and the paper discharging port 103. The pair of electrode wires 2 are arranged in the cavity 101 and respectively located at opposite sides of the conveying channel. The output end of the alternating current high-voltage generator is electrically connected with the pair of electrode wires 2, and the pair of electrode wires 2 are used for ionizing air and alternately generating positive ions and negative ions in the cavity 101.
[0044] Therefore, the printer static electricity elimination device provided by the embodiments of the present application utilizes the alternating current high-voltage generator to provide alternating current high-voltage for the pair of electrode wires 2, can ionize air in the cavity 101 of the shell 1, and alternately generate positive ions and negative ions. When the paper sheets 9 enter the conveying channel of the cavity 101 from the paper feeding port 102, the air flow during conveying of the paper sheets 9 is utilized to enable the positive ions and the negative ions to act on the paper sheets 9, and the static electricity on the paper sheets 9 is actively consumed. For printing of multiple paper sheets 9 like passbooks, the static electricity of the multiple paper sheets 9 is eliminated through non-contact charge consumption, so as to significantly improve the static electricity elimination effect of each paper sheet 9, improve the quality of printed images, reduce the probability of conveying abnormality caused by static electricity adsorption, and improve the printing efficiency.
[0045] In one embodiment, as Figure 2 and Figure 3 As shown, the paper inlet 102 and the paper outlet 103 are respectively provided with the static electricity leading-out member 3, which can close the paper inlet 102 and the paper outlet 103 and leave a gap for the paper 9 to enter or exit. The static electricity leading-out member 3 provided at the paper inlet 102 and the paper outlet 103 can lead out the un-neutralized positive ions and negative ions, preventing the positive ions and negative ions in the cavity 101 from overflowing and affecting the normal use of other parts of the printer. For example, the positive ions and negative ions in the cavity 101 can be prevented from affecting the electronic imaging of the selenium drum module 7.
[0046] Further, in an embodiment, the static electricity leading-out member 3 includes at least one of a static electricity brush, a static electricity strip, and a conductive pad, which is simple in structure and low in use cost.
[0047] In an embodiment, the alternating current high-voltage generator is used to raise the alternating voltage to above 7000 volts and periodically output positive high voltage and negative high voltage. The alternating current high-voltage generator raising the alternating voltage to above 7000 volts provides high voltage, which is beneficial to ionizing air to form positive ions and negative ions by the electrode wire 2, and the alternating current high-voltage generator periodically outputting positive high voltage and negative high voltage can make a pair of electrode wires 2 alternately form positive ions and negative ions, thereby improving the static electricity elimination effect.
[0048] In an embodiment, a pair of electrode wires 2 are fixedly arranged on the inner wall of the shell 1 and used to generate positive ions and negative ions filling the cavity 101. The two electrode wires 2 are fixed on the inner wall of the shell 1 and arranged above and below the conveying channel, which can generate positive ions and negative ions filling the cavity 101. After a plurality of papers 9 enter the cavity 101, each paper 9 can be in sufficient contact with the positive ions and negative ions, thereby further improving the static electricity elimination effect of each paper 9.
[0049] According to the embodiment of the utility model, on the other hand, as shown, Figure 5 As shown, a printer is also provided, mainly comprising: a paper taking box 4, a separating module 5, a correction module 6, a selenium drum module 7, and a static electricity elimination device. The paper taking box 4 is used to place the paper 9. The separating module 5 is arranged at the outlet of the paper taking box 4 and used to convey the paper 9. The correction module 6 is arranged at the outlet of the separating module 5 and used to guide the paper 9. The selenium drum module 7 is arranged opposite to the correction module 6 and used to print an image on the paper 9. The shell 1 is arranged between the correction module 6 and the selenium drum module 7 of the static electricity elimination device.
[0050] Because the printer comprises the static electricity elimination device, has the same effect as the static electricity elimination device, that is, using the alternating current high-voltage generator to provide alternating current high-voltage for the pair of electrode wires 2, can ionize the air in the cavity 101 of the shell 1, and alternately generate positive ions and negative ions, when the paper sheet 9 enters the conveying passage of the cavity 101 from the paper sheet inlet 102, using the air flow during the conveying of the paper sheet 9, the positive ions and the negative ions can act on the paper sheet 9, actively consume the static electricity on the paper sheet 9, for the printing of multiple paper sheets 9 similar to the passbook, through the non-contact charge consumption, simultaneously realize the static electricity elimination of the multiple paper sheets 9, thereby significantly improving the static electricity elimination effect of each paper sheet 9, being beneficial to improving the quality of the printed image, reducing the conveying abnormal probability caused by the static electricity adsorption, and improving the printing efficiency.
[0051] The printer comprises but is not limited to a laser printer, an inkjet printer, etc.
[0052] In one embodiment, the printer further comprises a high-voltage plate, and the input end of the alternating current high-voltage generator is electrically connected with the high-voltage plate. The high-voltage plate generally provides an input voltage of 220 volts. The alternating current high-voltage generator is powered by the high-voltage plate, without the need to provide an additional power supply for the static electricity elimination device, thereby being capable of simplifying the structure of the static electricity elimination device and reducing the use cost.
[0053] In one embodiment, as shown in Figure 4 , the correction module 6 comprises a driving roller 601, a driven roller 602, and a driving member, the driving roller 601 is connected with the driving member, and a gap for the paper sheet 9 to pass through is left between the driving roller 601 and the driven roller 602. The paper sheet 9 passes through the gap between the driving roller 601 and the driven roller 602, and the driving roller 601 and the driven roller 602 can help the paper sheet 9 to be accurately guided from the separation module 5 to the static electricity elimination device, thereby ensuring the conveying stability of the paper sheet 9. The driving member can adopt a motor for driving the driving roller 601 to rotate.
[0054] Further, in one embodiment, as shown in Figure 4 , the driving roller 601 and the driven roller 602 are arranged in the up-down direction, and the driven roller 602 is located above the driving roller 601. The up-down arrangement of the driving roller 601 and the driven roller 602 is perpendicular to the conveying path of the paper sheet 9, and by applying appropriate pressure on the paper sheet 9 through the driving roller 601 and the driven roller 602, it is also capable of ensuring that the paper sheet 9 remains flat and aligned during the conveying process, thereby avoiding the misalignment or skew of the paper sheet 9.
[0055] Further, in one embodiment, the driven roller 602 is a metal rod, which can preliminarily lead out the static electricity on the paper sheet 9.
[0056] In one embodiment, as shown in Figure 5As shown, the printer further comprises a fixing module 8 arranged at the outlet of the toner cartridge module 7, for fixing the image on the paper 9. The fixing module 8 melts and presses the carbon powder into the fibers of the paper 9 by heating and pressing, ensures that the carbon powder is firmly attached to the surface of the paper 9, and can avoid the carbon powder from falling off, thereby improving the printing quality.
[0057] The working principle of the embodiment of the utility model is as follows:
[0058] Taking the laser printer printing a passbook as an example, the passbook is placed in the paper taking box 4, after the laser printer receives the passbook printing instruction, the passbook is carried to the correction module 6 through the separating module 5, and the electrostaticity of the page to be printed of the passbook is preliminarily discharged by the driven roller 602 of the correction module 6. At the same time, the high-voltage plate supplies power to the alternating high-voltage generator, a pair of electrode filaments 2 ionize the air in the cavity 101, alternately generate positive ions and negative ions, and fill the inside of the cavity 101.
[0059] The passbook is carried to the cavity 101 of the shell 1 of the electrostatic elimination device through the correction module 6, along with the airflow disturbance caused by the passbook carrying action, the positive ions and the negative ions in the cavity 101 contact each paper 9 of the passbook, and consume the electrostaticity of each paper 9 on the passbook.
[0060] To realize the basic function of the printer, the printer in the embodiment can also include other necessary modules or components, such as a shell, a control module, etc. It should be noted that the other necessary modules or components included in the printer can be selected from any suitable existing structure. To clearly and simply illustrate the technical solutions provided by the embodiment, the above-mentioned parts will not be described in detail, and the drawings of the specification are also simplified accordingly. However, it should be understood that the utility model is not limited in scope by this.
[0061] Although the embodiments of the utility model have been described in conjunction with the drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the utility model, and such modifications and variations all fall within the scope defined by the appended claims.
Claims
1. A printer static eliminator, characterized in that, include: The housing (1) has a sealed cavity (101) inside. The housing (1) has a paper inlet (102) and a paper outlet (103) communicating with the cavity (101) on opposite sides. A conveying channel for moving paper (9) is formed between the paper inlet (102) and the paper outlet (103). A pair of electrode wires (2) are disposed in the cavity (101) and are located on opposite sides of the conveying channel; The AC high voltage generator has its output terminals electrically connected to a pair of electrode wires (2), which are used to ionize air and alternately generate positive and negative ions in the cavity (101).
2. The printer static elimination device according to claim 1, characterized in that, The paper inlet (102) and the paper outlet (103) are respectively provided with static discharge components (3), which can close the paper inlet (102) and the paper outlet (103) while leaving a gap for the paper (9) to enter and exit.
3. The printer static elimination device according to claim 2, characterized in that, The static discharge component (3) includes at least one of the following: an antistatic brush, an antistatic strip, and a conductive pad.
4. The printer static elimination device according to claim 1, characterized in that, The AC high voltage generator is used to boost the AC voltage to over 7000 volts and periodically output positive and negative high voltages.
5. The printer static elimination device according to claim 1, characterized in that, A pair of electrode wires (2) are fixed on the inner wall of the housing (1) to generate positive and negative ions to fill the cavity (101).
6. A printer, characterized in that, include: Take out the paper box (4), which is used to hold paper (9); A separation module (5) is provided at the outlet of the paper dispensing box (4) for transporting paper (9); The calibration module (6) and the drum module (7) are provided. The calibration module (6) is located at the outlet of the separation module (5) and is used to guide the paper (9). The drum module (7) is arranged opposite to the calibration module (6) and is used to print the image on the paper (9). According to any one of claims 1 to 5, the static elimination device, the housing (1) is disposed between the calibration module (6) and the drum module (7).
7. The printer according to claim 6, characterized in that, It also includes a high-voltage board, and the input terminal of the AC high-voltage generator is electrically connected to the high-voltage board.
8. The printer according to claim 6, characterized in that, The correction module (6) includes an active roller (601), a driven roller (602) and a drive unit. The active roller (601) is connected to the drive unit, and a gap is left between the active roller (601) and the driven roller (602) for the paper (9) to pass through.
9. The printer according to claim 8, characterized in that, The driving roller (601) and the driven roller (602) are arranged in a vertical direction, with the driven roller (602) located above the driving roller (601).
10. The printer according to claim 6, characterized in that, Also includes: A fixing module (8) is located at the outlet of the drum module (7) and is used to fix the image onto the paper (9).