Laser printer system based on multi-motor driving

Abstract

The utility model discloses a laser printer system based on multi-motor driving, which relates to the technical field of laser printers, and adopts the scheme that the laser printer system comprises a paper taking unit, a correction unit, a selenium drum unit, a fixing unit, a paper discharging unit and a main control unit which are sequentially arranged along a first paper conveying path, driving mechanisms are respectively arranged in the paper taking unit, the correcting unit, the selenium drum unit, the fixing unit and the paper discharging unit, are in transmission connection with driving rollers in the units, and are used for controlling the driving rollers to act; the main control unit is in control connection with the driving mechanisms in the units so as to independently control starting and stopping of the units. According to the arrangement, the independent motors are arranged in the units, the main control unit is used for independent control, graded control is achieved, accurate control is achieved, meanwhile, the load torque of the motors can be reduced, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of mechanical printer technology, and in particular to a laser printer system based on multi-motor drive. Background Technology

[0002] Traditional laser printers typically use a single motor to drive the paper conveying system, which has the following problems: (1) Excessive load on the main motor: The single motor needs to bear all the conveying tasks, resulting in excessive load torque, which affects the life of the motor and the stability of the system; (2) Fixed paper path: It is impossible to dynamically adjust the height of the paper path and the pressure between the conveying rollers according to the paper thickness and type, which makes it easy for thick or thin paper to jam or slip during the conveying process; (3) Difficulty in removing paper jams: When a paper jam occurs, the user needs to manually remove it, which is cumbersome and can easily damage the equipment; (4) Poor compatibility: For a single product, traditional printers have a limited range of paper thicknesses that can be adapted to, and the engine platform can only be developed for specific paper thickness ranges, which limits the application range of the printer engine platform.

[0003] Therefore, there is an urgent need for a technology that can solve the above problems through multi-motor drive, hierarchical control, and segmented adjustment. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, the present invention provides a laser printer system based on multi-motor drive.

[0005] To achieve the above objectives, this utility model provides a laser printer system based on multi-motor drive, comprising:

[0006] The paper feeding unit, calibration unit, drum unit, fixing unit, and paper output unit, as well as the main control unit, are arranged sequentially along the first paper conveying path.

[0007] A drive mechanism is provided in each of the paper feeding unit, calibration unit, drum unit, fixing unit and paper discharge unit. The drive mechanism is connected to the drive roller in each unit and is used to control the movement of the drive roller.

[0008] The main control unit is connected to the drive mechanism in each of the units to control the start and stop of each unit individually.

[0009] To achieve the above objectives, the present invention provides a multi-motor driven mechanism printer system, which further includes a double-sided drive unit disposed on the second paper conveying path, wherein the drive mechanism is disposed in the double-sided drive unit.

[0010] The first paper conveying path and the second paper conveying path are used to convey the front and back sides of the same paper, respectively.

[0011] The starting end of the second paper conveying path is connected to the paper discharge unit in the first paper conveying path, and the ending end is connected to the correction unit in the first paper conveying path.

[0012] Preferably, an adjustment mechanism is provided in each of the paper feeding unit, the calibration unit, the drum unit, the fixing unit, the paper discharge unit, and the double-sided drive unit, and the adjustment mechanism is connected to the driven roller in each of the units.

[0013] The adjustment mechanism is used to control the driven roller to move closer to or further away from the driving roller to adjust the distance between them to adapt to different paper types of thickness.

[0014] The main control unit is connected to the adjustment mechanism in each of the units.

[0015] Preferably, sensors are provided in the paper feeding unit, the calibration unit, the drum unit, the fixing unit, the paper output unit, and the double-sided drive unit;

[0016] The sensor is positioned between every two units and is used to detect the paper feeding status in each unit.

[0017] The sensor is communicatively connected to the main control unit.

[0018] Preferably, the adjustment mechanism includes an adjustment motor, a first gear, and a rack plate, wherein the rack plate is configured as an elongated strip.

[0019] The first gear is mounted on the drive shaft of the regulating motor, and the first gear meshes with the side wall of the rack plate. The driven roller is mounted on one end of the rack plate.

[0020] The adjustment mechanism is used to control the rotation of the first gear to make the rack plate move in a straight line, so that the driven roller moves away from or closer to the driving roller.

[0021] Preferably, the main control unit has a built-in hierarchical control module, which is used to control the drive mechanism in each unit to operate with different load torques.

[0022] Preferably, the drive mechanism includes a drive motor, a second gear, and a third gear;

[0023] The second gear is mounted on the drive shaft of the drive motor, and the second gear is meshed with the third gear, which is fixedly connected to the drive roller.

[0024] The drive mechanism is used to control the rotation of the second gear in order to control the movement of the drive roller.

[0025] Preferably, the paper type includes A0, A1, A2, A3, A4, and A5.

[0026] Preferably, the regulating motor is a stepper motor.

[0027] Preferably, the sensor includes a paper jam detection sensor.

[0028] Based on this, the beneficial effects of this utility model are as follows:

[0029] 1. The present invention provides an independent drive mechanism at each unit on the first paper conveying path. By driving multiple motors individually, compared with the traditional solution where one motor drives all units, the load torque of the main motor can be significantly reduced and the service life of the motor can be extended. At the same time, by connecting multiple motors to the main control unit for control, independent intelligent adjustment of the load torque of each unit can be achieved, realizing hierarchical control and making the control more precise.

[0030] 2. According to the solution of this utility model, this utility model also has a second paper conveying path, on which a double-sided driving unit is provided. Its starting end is connected to the paper discharge unit and its ending end is connected to the correction unit. After the paper moves through the first paper conveying path and prints the front side of the paper, the drive motor at the paper discharge unit is controlled to reverse so that the paper moves along the second paper conveying path to the correction unit. Then, the paper moves through the first paper conveying path to print the back side of the paper, thus realizing double-sided printing of the paper.

[0031] 3. In the solution of this utility model, an adjustment mechanism is provided at each unit, which is connected to the driven roller in each unit. The adjustment mechanism can control the driven roller to move closer to or further away from the driving roller, thereby adjusting the distance between the driving roller and the driven roller. This enables the system to adapt to different paper types of thickness and improves the applicability of the system. Attached Figure Description

[0032] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0033] Figure 1 A schematic diagram illustrating the structure of a laser printer system according to one embodiment of the present invention;

[0034] Figure 2 A schematic diagram illustrating the structure of the adjustment structure according to one embodiment of the present invention;

[0035] Explanation of reference numerals in the attached drawings: 10-First paper conveying path, 101-Paper picking unit, 102-Correction unit, 103-Drum unit, 104-Fixing unit, 105-Paper discharge unit, 20-Main control unit, 30-Drive mechanism, 301-Drive roller, 302-Driven roller, 303-Drive motor, 304-Second gear, 305-Third gear, 40-Second paper conveying path, 401-Double-sided drive unit, 50-Adjustment mechanism, 501-Adjustment motor, 502-First gear, 503-Gear plate, 60-Sensor. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0037] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms "a," "the," and "the" as used in the embodiments of this application are also intended to include the plural forms unless the context clearly indicates otherwise.

[0038] It should be understood that although the terms first, second, third, etc., may be used to describe related structures in the embodiments of this application, these related structures should not be limited to these terms. These terms are only used to distinguish related structures from each other.

[0039] Depending on the context, the word "if" as used here can be interpreted as "when" or "when". Similarly, depending on the context, the phrase "if determined" can be interpreted as "when determined" or "when (the condition or event of the statement) is detected".

[0040] It should be noted that the directional terms such as "upper," "lower," "left," and "right" described in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should also be understood that when it is mentioned that an element is formed "upper" or "lower" of another element, it can not only be formed directly "upper" or "lower" of the other element, but also indirectly "upper" or "lower" of the other element through an intermediate element.

[0041] Figure 1 This schematic diagram illustrates the structure of a laser printer system according to one embodiment of the present invention, as shown below. Figure 1As shown, this utility model discloses a multi-motor-based laser printer system, comprising:

[0042] Along the first paper conveying path 10, a paper picking unit 101, a calibration unit 102, a toner cartridge unit 103, a fixing unit 104, and a paper discharge unit 105 are arranged in sequence, as well as a main control unit 20.

[0043] A drive mechanism 30 is provided in the paper feeding unit 101, the calibration unit 102, the drum unit 103, the fixing unit 104, and the paper discharge unit 105. The drive mechanism 30 is connected to the drive roller 301 in each unit and is used to control the action of the drive roller 301.

[0044] The main control unit 20 is connected to the drive mechanism 30 in each unit and controls the start and stop of each unit individually.

[0045] Specifically, the drive mechanism 30 includes a drive motor 303, a second gear 304 and a third gear 305. The second gear 304 is mounted on the transmission shaft of the drive mechanism 30, and the second gear 304 and the third gear 305 are meshed and connected. The third gear 305 is fixedly connected to the drive roller 301.

[0046] The drive mechanism 30 is used to control the rotation of the second gear 304 to control the movement of the drive roller 301, thereby realizing the paper conveying.

[0047] During the paper handling process of the laser printer system, the paper take-up unit 101 takes paper from the paper tray and transports it to the alignment unit 102. The alignment unit 102 aligns the paper head and transports the aligned paper to the drum unit 103. Through laser scanning and drum imaging, the content to be printed is printed onto the paper. At this time, the paper is transported to the fixing unit 104. After the fixing unit 104 heats and fixes the printed content, it is transported to the paper output unit 105 and transported to the exit to complete the printing.

[0048] The main control unit 20 has a built-in hierarchical control module (not shown in the figure). The hierarchical control module is used to control the drive mechanism 30 in each unit to operate with different load torques, so as to realize the independent control of each unit.

[0049] By individually setting the drive mechanism 30 in each unit, each unit is controlled by an independent motor. Compared to the traditional approach where a single main motor controls all unit movements, this significantly reduces motor load torque and extends motor lifespan. Furthermore, since each drive mechanism 30 is connected to the main control unit 20, the main control unit 20 can set different load torques for the motors in each unit, achieving more precise control. It can also stop the motors in units that have finished working and start only the motors in the units that need to move, achieving dynamic allocation, reducing idling wear of each motor, and extending the printer's lifespan.

[0050] Furthermore, the laser printer system based on multi-motor drive of this utility model also includes a double-sided drive unit 401 disposed in the second paper conveying path 40, and a drive mechanism 30 disposed in the double-sided drive unit 401. The first paper conveying path 10 and the second paper conveying path 40 are used to convey the two sides of the same paper.

[0051] The starting end of the second paper conveying path 40 is connected to the paper discharge unit 105 in the first paper conveying path 10, and the ending end is connected to the correction unit 102.

[0052] Specifically, when double-sided printing is required, when the paper moves along the first paper conveying path 10 to the paper output unit 105, the main control unit 20 controls the drive mechanism 30 at the paper output unit 105 to reverse, conveying the paper to the second paper conveying path 40. Through the double-sided drive unit 401, the paper is conveyed again to the correction unit 102, and the reverse side of the paper continues to be printed through each unit on the first paper conveying path 10. Finally, the paper is output from the paper output unit 105, realizing double-sided printing of the paper.

[0053] Furthermore, Figure 2 This schematic diagram illustrates the structure of the adjustment structure according to one embodiment of the present invention, as shown below. Figure 2 As shown, adjustment mechanisms 50 are respectively provided in the paper feeding unit 101, the calibration unit 102, the drum unit 103, the fixing unit 104, the paper discharge unit 105 and the double-sided drive unit 401, and the adjustment mechanisms 50 are connected to the driven rollers 302 of each unit.

[0054] The adjustment mechanism 50 is used to control the driven roller 302 to move closer to or further away from the driving roller 301 to adjust the distance between the two to adapt to different paper types of thickness.

[0055] The main control unit 20 is connected to the adjustment mechanism 50 in each unit.

[0056] Specifically, the paper types include A0, A1, A2, A3, A4, A5, etc., and the adjustment mechanism 50 includes an adjustment motor 501, a first gear 502, and a rack plate 503, wherein the rack plate 503 is configured as a long strip.

[0057] The first gear 502 is mounted on the drive shaft of the regulating motor 501. The first gear 502 is meshed with the side wall of the rack plate 503. The driven roller 302 is mounted on one end of the rack plate 503.

[0058] The adjusting mechanism 50 is used to control the rotation of the first gear 502 so that the rack plate 503 moves in a straight line, so that the driven roller 302 moves away from or closer to the driving roller 301.

[0059] The adjusting motor 501 can be set as a stepper motor, and its step number can be set to be related to the paper type, specifically the paper thickness. For example, when the stepper motor moves forward two steps, the first gear 502 is controlled to rotate, so that the rack plate 503 moves by the same distance of two rack widths, thereby adjusting the A1 paper type spacing between the driving roller 301 and the driven roller 302 to the A2 paper type spacing, and then printing on A2 paper.

[0060] With this setup, the distance between the drive roller 301 and the driven roller 302 can be adjusted by adjusting the mechanism 50, thus adapting to the feeding and printing of paper of different types and thicknesses. By adjusting the distance between the two rollers, the pressure between the rollers can be adjusted, ensuring that the paper remains stable during the feeding process and making the printing accurate.

[0061] Furthermore, sensors 60 are respectively provided in the paper feeding unit 101, the calibration unit 102, the drum unit 103, the fixing unit 104, the paper discharge unit 105 and the double-sided drive unit 401;

[0062] Sensor 60 is positioned between every two units. Sensor 60 is used to detect the paper feeding status in each unit. Sensor 60 is communicatively connected to the main control unit 20.

[0063] Specifically, sensor 60 is a paper jam detection sensor, which can be set on the first paper conveying path 10 and the second paper conveying path 40 to detect whether there is a paper jam during paper conveying. If a paper jam is detected, the motor of the section after the paper jam position is stopped, the driven roller at the paper jam position is moved away from the driving roller, and the motors of the section before and after the paper jam position are reversed to remove the paper from the conveying system.

[0064] The sensor 60 can also be a photoelectric sensor, which is set on the first paper conveying path 10, specifically between the paper picking unit 101 and the correction unit 102, to detect whether the paper picking unit 101 has successfully picked up paper. When no paper is detected, a signal is sent to the main control unit 20, which controls the subsequent units of the paper picking unit 101 to stop and controls the paper picking unit 101 to continue picking up paper.

[0065] Similarly, the sensor 60 located between the calibration unit 102 and the drum unit 103 detects the starting position of the paper printing data to ensure that the calibration unit 102 is calibrated accurately; a sensor 60 is located between the fixing unit 104 and the paper ejection unit 105, with one sensor near the fixing unit 104 and one near the paper ejection unit 105. The sensor 60 near the fixing unit 104 can determine whether the fixing is successful, and the sensor 60 near the paper ejection unit 105 can determine whether the paper ejection is successful.

[0066] The overall handling process for the laser printer system is as follows:

[0067] Used to rotate the paper type and issue a print command via the user interface;

[0068] After receiving the print command, the main control unit 20 drives the motors other than the paper tray to pre-start and accelerate to their respective predetermined speeds during normal printing. At the same time, after receiving the print command, the main control unit 20 drives the conveying driven roller 302 to move away from or closer to the active roller 301 to complete the paper type spacing and pressure adaptation adjustment.

[0069] The main control unit 20 drives the drive mechanism 30 in the paper feeding unit 101 to move and transport the paper head to the correction unit 102.

[0070] The main control unit 20 drives the drive mechanism 30 in the correction unit 102 to move, complete the correction of the paper head, and transport the paper to the drum unit 103.

[0071] The main control unit 20 drives the drive mechanism 30 in the drum unit 103 to move, completes the paper printing operation, and transports the paper to the fixing unit 104.

[0072] The main control unit 20 drives the drive mechanism 30 in the fixing unit 104 to move, turns on the fixing heating, completes the fixing operation on the paper, and transports the paper to the paper discharge unit 105.

[0073] The main control unit 20 drives the drive mechanism 30 in the paper output unit 105 to move, outputting the tail of the paper to complete the paper output and the single-sided printing process.

[0074] If double-sided printing is required, after the paper ends pass through the paper feed unit 105, the main control unit 20 controls the drive mechanism 30 at the paper feed unit 105 to reverse, so that the paper head is transported to the double-sided drive unit 401, and controls the paper feed unit 105 to rotate forward. After the paper completes double-sided printing, the paper is fed out. The paper entering the double-sided drive unit 401 is transported to the correction unit 102 to continue repeating the above steps.

[0075] In summary, the laser printer system of this utility model effectively reduces motor load torque through multi-motor collaborative work and hierarchical control. By adjusting the roller spacing and pressure, it can adapt to printing on various paper types. At the same time, through segmented control, it can automatically remove paper jams, avoiding manual cleaning of the printer when it gets stuck. This solution effectively improves the overall compatibility, reliability, and user experience of the printer.

[0076] The above description is merely a preferred embodiment of this application. Those skilled in the art should understand that the scope of disclosure in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A laser printer system based on multi-motor drive, characterized in that, include: The paper feeding unit, calibration unit, drum unit, fixing unit, and paper output unit, as well as the main control unit, are arranged sequentially along the first paper conveying path. A drive mechanism is provided in each of the paper feeding unit, calibration unit, drum unit, fixing unit and paper discharge unit. The drive mechanism is connected to the drive roller in each unit and is used to control the movement of the drive roller. The main control unit is connected to the drive mechanism in each of the units to control the start and stop of each unit individually.

2. The laser printer system based on multi-motor drive according to claim 1, characterized in that, It also includes a double-sided drive unit disposed on the second paper conveying path, wherein the drive mechanism is disposed in the double-sided drive unit; The first paper conveying path and the second paper conveying path are used to convey the front and back sides of the same paper, respectively. The starting end of the second paper conveying path is connected to the paper discharge unit in the first paper conveying path, and the ending end is connected to the correction unit in the first paper conveying path.

3. A laser printer system based on multi-motor drive according to claim 2, characterized in that, An adjustment mechanism is provided in each of the paper feeding unit, correction unit, drum unit, fixing unit, paper discharge unit and double-sided drive unit, and the adjustment mechanism is connected to the driven roller in each of the units. The adjustment mechanism is used to control the driven roller to move closer to or further away from the driving roller to adjust the distance between them to adapt to different paper types of thickness. The main control unit is connected to the adjustment mechanism in each of the units.

4. A laser printer system based on multi-motor drive according to claim 2, characterized in that, Sensors are respectively installed in the paper feeding unit, calibration unit, drum unit, fixing unit, paper output unit and double-sided drive unit; The sensor is positioned between every two units and is used to detect the paper feeding status in each unit. The sensor is communicatively connected to the main control unit.

5. A laser printer system based on multi-motor drive according to claim 3, characterized in that, The adjustment mechanism includes an adjustment motor, a first gear, and a rack plate, wherein the rack plate is configured as an elongated strip. The first gear is mounted on the drive shaft of the regulating motor, and the first gear meshes with the side wall of the rack plate. The driven roller is mounted on one end of the rack plate. The adjustment mechanism is used to control the rotation of the first gear to make the rack plate move in a straight line, so that the driven roller moves away from or closer to the driving roller.

6. A laser printer system based on multi-motor drive according to claim 1, characterized in that, The main control unit has a built-in hierarchical control module, which is used to control the drive mechanism in each unit to operate with different load torques.

7. A laser printer system based on multi-motor drive according to claim 1, characterized in that, The drive mechanism includes a drive motor, a second gear, and a third gear; The second gear is mounted on the drive shaft of the drive motor, and the second gear is meshed with the third gear, which is fixedly connected to the drive roller. The drive mechanism is used to control the rotation of the second gear in order to control the movement of the drive roller.

8. A laser printer system based on multi-motor drive according to claim 3, characterized in that, The paper types include A0, A1, A2, A3, A4, and A5.

9. A laser printer system based on multi-motor drive according to claim 5, characterized in that, The regulating motor is a stepper motor.

10. A laser printer system based on multi-motor drive according to claim 4, characterized in that, The sensor includes a paper jam detection sensor.

Images