A UV printer

Abstract

The application relates to the technical field of printers, in particular to a UV printer which comprises a machine table, a shell is installed at the top end of the machine table, a printing structure is installed in the shell, an angle adjusting structure is also installed at the top end of the machine table, a clamping structure is installed at the top end of the angle adjusting structure, an adjusting plate is rotationally connected to the bottom plate, a moving piece is slidably connected to the bottom plate through a first guide rail and a first sliding block, a rotating piece is rotationally connected to the side end of the moving piece, and the other end of the rotating piece is rotationally connected with the adjusting plate; the clamping structure can also be adjusted in angle under the action of the angle adjusting structure, that is, the angle of the clamped workpiece can be adjusted, so that the clamped workpiece can be better matched with an ink jet head on the printing structure, the distance between each position of a printing area and the ink jet head can be effectively avoided during printing, and the printing quality is improved.

Description

Technical Field

[0001] This invention relates to the field of printer technology, specifically a UV printer. Background Technology

[0002] UV printers (ultraviolet curing printers) originate from traditional inkjet printing technology, combining piezoelectric inkjet technology with photocuring technology. Their core principle is to spray UV ink containing a photosensitive curing agent onto the material surface through a printhead, and then use an ultraviolet light source (such as an LED lamp) to instantly cure the ink, achieving rapid pattern formation.

[0003] However, current UV printers do not keep the inkjet head perpendicular to the printing area when printing on curved workpieces; instead, they are at an angle. As a result, the distance between the inkjet head and different parts of the printing area varies during printing, leading to color deviations in the printed pattern and affecting the product's appearance. Furthermore, the workpiece is simply clamped by two clamping plates without any positioning or error-proofing components, which can cause installation errors by employees. Summary of the Invention

[0004] To address the problems in the prior art, the present invention provides a UV printer.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a UV printer, including a machine base, a housing installed at the top of the machine base, a printing structure installed inside the housing, an angle adjustment structure installed at the top of the machine base, and a clamping structure installed at the top of the angle adjustment structure.

[0006] The angle adjustment structure includes a base plate, an adjustment plate rotatably connected to the base plate, a movable component slidably connected to the base plate via a first guide rail and a first slider, a rotating component rotatably connected to one side of the movable component, and the other end of the rotating component rotatably connected to the adjustment plate.

[0007] Specifically, the angle adjustment structure also includes a motor mounting base, on the base plate, and a lead screw seat is also mounted on the base plate. A first lead screw is rotatably connected between the motor mounting base and the lead screw seat. The first lead screw passes through the moving part and is threadedly connected to the moving part. A first motor is mounted on the side end of the motor mounting base, and the output end of the first motor is connected to the first lead screw through a coupling.

[0008] Specifically, the clamping structure includes a column, which is installed on the top right side of the adjusting plate. A clamping plate is rotatably connected to the top of the column. A second motor is installed on the side of the column, and the output shaft of the second motor is connected to the clamping plate. A support plate is slidably connected to the top left side of the adjusting plate. A chuck is rotatably connected to the top of the support plate. The bottom end of the support plate is fixedly connected to the sliding plate.

[0009] Specifically, the clamping structure further includes a second guide rail and a second slider. The slide plate is slidably connected to the adjusting plate through the second guide rail and the second slider. A rodless cylinder is installed at the top of the adjusting plate, and the moving part of the rodless cylinder is connected to the bottom end of the support plate.

[0010] Specifically, the clamp is provided with a positioning structure, which includes positioning posts. Three positioning posts are fixedly connected in a circular array on the end face of the clamp, and anti-fooling blocks are also fixedly connected in a vertical relationship on the end face of the clamp.

[0011] Specifically, the positioning structure also includes fixed seats, and multiple fixed seats are fixedly connected in a circumferential array on the end face of the clamping plate. A spring is fixedly connected to one end of the fixed seat, and a positioning plate is fixedly connected to the other end of the spring. The positioning plate is slidably connected to the clamping plate.

[0012] Specifically, a curing structure is installed on the adjustment plate. The curing structure includes a second linear motor module. The second linear motor module is installed at the top of the adjustment plate. A vertical plate is installed on the moving part of the second linear motor module. A curing plate is rotatably connected to the top of the vertical plate, which has an L-shaped structure. A UV lamp is installed on the curing plate. A cover is installed outside the UV lamp.

[0013] Specifically, a plasma cleaning structure is installed at one end of the machine tool near the clamping structure. The plasma cleaning structure includes a first cleaning seat, which is installed at the top of the machine tool. A threaded block is slidably connected to the top of the first cleaning seat via two first guide rods. A second lead screw is rotatably connected inside the first cleaning seat. The threaded block is threadedly connected to the outside of the second lead screw. A second cleaning seat is installed at the top of the threaded block. A placement frame is slidably connected to the inside of the second cleaning seat via two second guide rods. A third lead screw is rotatably connected inside the second cleaning seat. The placement frame is threadedly connected to the third lead screw. A plasma cleaning gun head is provided at the top of the placement frame.

[0014] Specifically, the printing structure includes a gantry frame, which is installed at the top of the machine base. A first linear motor module is installed at the front end of the gantry frame. A slide is installed on the moving part of the first linear motor module. A lead screw module is installed at the front end of the slide. A mounting plate is installed on the moving part of the lead screw module. An ink cartridge is installed on the mounting plate. A printhead is installed at the bottom end of the mounting plate. An electrostatic bar is installed on the side end of the printhead. A baffle is installed around the printhead. A control board is installed at the top of the slide.

[0015] The beneficial effects of this invention are:

[0016] (1) The UV printer described in this invention can print workpieces by means of a printing structure installed on the machine base. With the help of the clamping structure, the workpieces can be clamped and fixed so that there will be no deviation during printing. The clamping structure can also rotate in a circle, so as to realize the all-round printing of the workpieces. The clamping structure can also realize the angle adjustment under the operation of the angle adjustment structure, that is, the angle of the clamped workpiece can be adjusted, so as to better cooperate with the inkjet head on the printing structure. It can effectively avoid the situation that the distance between the inkjet head and the various positions of the printing area is different during printing, thereby improving the printing quality.

[0017] (2) The UV printer described in this invention has a positioning structure on the clamping structure, that is, the positioning pin installed on the side of the clamping plate can play a positioning role when clamping the product, and the installed positioning pin can play a foolproof role, which can ensure that the employees will not install incorrectly and ensure that the employees can quickly install in place, thereby improving the yield and installation efficiency.

[0018] (3) The UV printer described in this invention uses a curing structure installed on the adjustment plate to control the distance between the water-cooled UV curing lamp and the product, which improves the curing effect. The plasma cleaning structure installed on the machine body allows the plasma cleaning gun head to be placed manually in the placement rack inside the machine, with the position aligned with the cleaning area of ​​the product. This enables thorough cleaning of the printed workpiece, and the cleaning distance can be manually adjusted, thereby increasing the subsequent printing quality. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the overall appearance structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall structure of the present invention after the shell is removed;

[0022] Figure 3This is a schematic diagram of the plasma cleaning structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the clamping structure of the present invention;

[0024] Figure 5 This is a schematic diagram of the positioning structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the curing structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the angle adjustment structure of the present invention;

[0027] Figure 8 This is a schematic diagram of the printing structure of the present invention;

[0028] Figure 9 This is a schematic diagram of the structure on the mounting plate of the present invention.

[0029] In the diagram: 1. Machine base; 2. Housing; 3. Printing structure; 301. Gantry; 302. First linear motor module; 303. Slide; 304. Control board; 305. Lead screw module; 306. Mounting plate; 307. Ink cartridge; 308. Printhead; 309. Static bar; 310. Anti-blocking plate; 4. Angle adjustment structure; 401. Base plate; 402. Adjustment plate; 403. First guide rail; 404. First slider; 405. Moving part; 406. Rotating part; 407. Motor mounting base; 408. First motor; 409. Lead screw seat; 410. First lead screw; 5. Clamping structure; 501. Column; 502. Clamping plate; 503. Second motor; 504. Second guide rail 505. Second slider; 506. Slide plate; 507. Support plate; 508. Chuck; 509. Rodless cylinder; 6. Positioning structure; 601. Positioning post; 602. Fixing seat; 603. Spring; 604. Positioning plate; 605. Anti-fooling block; 7. Curing structure; 701. Second linear motor module; 702. Vertical plate; 703. Curing plate; 704. UV lamp; 705. Cover; 8. Plasma cleaning structure; 801. First cleaning seat; 802. First guide rod; 803. Second lead screw; 804. Threaded block; 805. Second cleaning seat; 806. Second guide rod; 807. Third lead screw; 808. Placement rack; 809. Plasma cleaning gun head; 9. Workpiece. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0031] like Figures 1-9As shown, the UV printer of the present invention includes a machine base 1, a housing 2 installed at the top of the machine base 1, a printing structure 3 installed inside the housing 2, an angle adjustment structure 4 installed at the top of the machine base 1, and a clamping structure 5 installed at the top of the angle adjustment structure 4. The angle adjustment structure 4 includes a base plate 401, an adjustment plate 402 rotatably connected to the base plate 401, a moving part 405 slidably connected to the base plate 401 via a first guide rail 403 and a first slider 404, a rotating part 406 rotatably connected to the side end of the moving part 405, and the other end of the rotating part 406 rotatably connected to the adjustment plate 402.

[0032] Specifically, the angle adjustment structure 4 also includes a motor mounting base 407, which is mounted on a base plate 401. A lead screw seat 409 is also mounted on the base plate 401. A first lead screw 410 is rotatably connected between the motor mounting base 407 and the lead screw seat 409. The first lead screw 410 passes through the moving part 405 and is threadedly connected to the moving part 405. A first motor 408 is mounted on the side end of the motor mounting base 407. The output end of the first motor 408 is connected to the first lead screw 410 through a coupling.

[0033] During the printing process of workpiece 9, in order to ensure the printing quality of the curved surface, it is sometimes necessary to adjust the angle of clamping workpiece 9. When the angle of workpiece 9 needs to be adjusted, the first motor 408 needs to be started. The first motor 408 drives the first lead screw 410 to rotate, thereby driving the moving part 405, which is threaded to it, to move left or right on the base plate 401. When the moving part 405 moves to the right, it can drive the adjusting plate 402 to rotate through the rotating part 406, which is rotatably connected to it at the side end. This raises the left side of the adjusting plate 402, thereby realizing the angle adjustment of clamping workpiece 9. This allows for better cooperation with the inkjet head on the printing structure 3, effectively avoiding the situation where the distance between the inkjet head and various positions in the printing area is different during printing, thus improving the printing quality.

[0034] Specifically, the clamping structure 5 includes a column 501, which is installed on the top right side of the adjusting plate 402. A clamping plate 502 is rotatably connected to the top of the column 501. A second motor 503 is installed on the side of the column 501, and the output shaft of the second motor 503 is connected to the clamping plate 502. A support plate 507 is slidably connected to the top left side of the adjusting plate 402. A chuck 508 is rotatably connected to the top of the support plate 507. The bottom end of the support plate 507 is fixedly connected to the slide plate 506. The slide plate 506 is slidably connected to the adjusting plate 402 through a second guide rail 504 and a second slider 505. A rodless cylinder 509 is installed on the top of the adjusting plate 402, and the moving part of the rodless cylinder 509 is connected to the bottom end of the support plate 507.

[0035] Start the rodless cylinder 509. The rodless cylinder 509 drives the chuck 508 on the support plate 507 away from the clamping plate 502. After sufficient installation space is reserved between the chuck 508 and the clamping plate 502, place the workpiece 9 between the chuck 508 and the clamping plate 502. Then start the rodless cylinder 509 again to drive the chuck 508 closer to the clamping plate 502 until the workpiece 9 is clamped. During subsequent processing, the second motor 503 drives the clamping plate 502 to rotate the workpiece 9, so that the workpiece 9 can be printed from all directions.

[0036] Specifically, the clamping plate 502 is provided with a positioning structure 6, which includes positioning posts 601. Three positioning posts 601 are fixedly connected in a circular array on the end face of the clamping plate 502. Anti-fooling blocks 605 are also fixedly connected in a vertical relationship on the end face of the clamping plate 502. Multiple fixing seats 602 are fixedly connected in a circular array on the end face of the clamping plate 502. A spring 603 is fixedly connected to one end of the fixing seat 602, and a positioning plate 604 is fixedly connected to the other end of the spring 603. The positioning plate 604 is slidably connected to the clamping plate 502.

[0037] When installing workpiece 9, it is necessary to align workpiece 9 with the positioning post 601 on the side of the clamp 502 to perform initial positioning of workpiece 9. It is also necessary to align workpiece 9 with the anti-fooling block 605 on the clamp 502 to ensure that the employee does not install it incorrectly. The multiple positioning plates 604 on the clamp 502 connected by springs 603 can also play a role in resisting the inside of workpiece 9, thereby further improving the stability of workpiece 9 installation.

[0038] Specifically, a curing structure 7 is installed on the adjusting plate 402. The curing structure 7 includes a second linear motor module 701. The second linear motor module 701 is installed at the top of the adjusting plate 402. A vertical plate 702 is installed on the moving part of the second linear motor module 701. A curing plate 703 is rotatably connected to the top of the L-shaped vertical plate 702. A UV lamp 704 is installed on the curing plate 703. A cover 705 is installed outside the UV lamp 704.

[0039] Activating the second linear motor module 701 drives the UV lamp 704 to approach the workpiece 9, thereby curing the workpiece 9 and improving the curing effect. At the same time, the UV lamp 704 can be efficiently cooled and extend the service life of the equipment, maintain the stability of light output, save energy and protect the environment with low energy consumption, meet environmental protection standards, and has a fast curing speed, thereby improving production efficiency. In addition, the UV lamp 704 can also be angled to increase the range of applications.

[0040] Specifically, a plasma cleaning structure 8 is installed at one end of the machine base 1 near the clamping structure 5. The plasma cleaning structure 8 includes a first cleaning seat 801. The first cleaning seat 801 is installed at the top of the machine base 1. A threaded block 804 is slidably connected to the top of the first cleaning seat 801 through two first guide rods 802. A second lead screw 803 is rotatably connected inside the first cleaning seat 801. The threaded block 804 is threadedly connected to the outside of the second lead screw 803. A second cleaning seat 805 is installed at the top of the threaded block 804. A placement frame 808 is slidably connected to the inside of the second cleaning seat 805 through two second guide rods 806. A third lead screw 807 is rotatably connected inside the second cleaning seat 805. The placement frame 808 is threadedly connected to the third lead screw 807. A plasma cleaning gun head 809 is provided at the top of the placement frame 808.

[0041] Rotating the second lead screw 803 can adjust the cleaning distance between the plasma cleaning gun head 809 and the workpiece 9, so as to clean according to different cleaning needs. Rotating the third lead screw 807 can adjust the lateral position of the plasma cleaning gun head 809, so as to clean different areas of the workpiece 9.

[0042] Specifically, the printing structure 3 includes a gantry 301, which is installed at the top of the machine base 1. A first linear motor module 302 is installed at the front end of the gantry 301. A slide 303 is installed on the moving part of the first linear motor module 302. A lead screw module 305 is installed at the front end of the slide 303. A mounting plate 306 is installed on the moving part of the lead screw module 305. An ink cartridge 307 is installed on the mounting plate 306. A printhead 308 is installed at the bottom end of the mounting plate 306. An electrostatic bar 309 is installed on the side end of the printhead 308. A baffle 310 is installed around the printhead 308. A control plate 304 is installed at the top of the slide 303.

[0043] The first linear motor module 302 on the gantry 301 can drive the slide 303 to move laterally, accurately moving the nozzle 308 directly above the area to be printed on the workpiece 9. Then, through the lead screw module 305, the nozzle 308 can be lowered to a position close to the workpiece 9, thereby realizing printing.

[0044] In use, the workpiece 9 to be printed is first clamped and fixed. Before clamping, the rodless cylinder 509 is activated, driving the chuck 508 on the support plate 507 away from the clamping plate 502. After sufficient installation space is reserved between the chuck 508 and the clamping plate 502, the workpiece 9 is placed between the chuck 508 and the clamping plate 502. Then, the rodless cylinder 509 is activated again to drive the chuck 508 closer to the clamping plate 502 until the workpiece 9 is clamped. During subsequent processing, the second motor 503 drives the clamping plate 502 to rotate the workpiece 9, thus enabling omnidirectional printing of the workpiece 9. When installing the workpiece 9, it is necessary to align the workpiece 9 with the positioning post 601 on the side of the clamping plate 502 for initial positioning. It is also necessary to align the workpiece 9 with the anti-misalignment block 605 on the clamping plate 502 to ensure that the operator does not install it incorrectly. Multiple positioning plates on the clamping plate 502 are connected by springs 603. 604 can also act as abutment against the inner side of workpiece 9, thereby further improving the stability of workpiece 9 installation. During the printing process of workpiece 9, in order to ensure the printing quality of the curved surface, it is sometimes necessary to adjust the angle of clamping workpiece 9. When it is necessary to adjust the angle of workpiece 9, the first motor 408 needs to be started. The first motor 408 drives the first lead screw 410 to rotate, thereby driving the moving part 405 connected to it to move to the left or right on the base plate 401. When the moving part 405 moves to the right, it can drive the adjusting plate 402 to rotate through the rotating part 406 connected to it at the side end, thereby raising the left side of the adjusting plate 402, which can realize the angle adjustment of clamping workpiece 9, so as to better cooperate with the inkjet head on the printing structure 3, and effectively avoid the situation where the distance between the inkjet head and the various positions of the printing area is different during printing, thus achieving the effect of improving printing quality.

[0045] After the workpiece 9 is clamped and fixed, it can be cleaned. Rotating the second lead screw 803 adjusts the cleaning distance between the plasma cleaning gun head 809 and the workpiece 9, allowing for cleaning according to different needs. Rotating the third lead screw 807 adjusts the lateral position of the plasma cleaning gun head 809, facilitating cleaning of different areas of the workpiece 9. After cleaning the workpiece 9, the printing structure 3 can be activated. The first linear motor module 302 on the gantry 301 drives the slide 303 to move laterally, accurately moving the printhead 308 directly above the area to be printed on the workpiece 9. Then, through the lead screw module 305, the printhead 308 is lowered to a position close to the workpiece 9, thus achieving printing. The ink system mainly consists of an ink cartridge 307, ink tube, filter, ink pump, valve body, and printhead 308. These components work together to ensure ink flow from... The smooth process from storage to ejection is crucial. During printing, ink flows from ink cartridge 307 to printhead 308 through ink tubes. The ink pump provides the necessary power, the filter ensures ink purity, and the valve controls ink flow. The stability and reliability of the ink path system directly affect print quality and equipment performance. Proper design and maintenance of the ink path system ensures a stable ink supply, avoids clogging and dripping, and extends equipment lifespan. After workpiece 9 is printed, the second linear motor module 701 is activated, driving the UV lamp 704 to approach workpiece 9 for curing, resulting in better curing. Simultaneously, the UV lamp 704 provides efficient cooling, extends equipment lifespan, maintains stable light output, is energy-saving and environmentally friendly with low energy consumption, meets environmental standards, and offers fast curing speed, improving production efficiency. Furthermore, the UV lamp 704's angle is adjustable, increasing its usability.

[0046] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0047] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A UV printer, characterized in that: The machine includes a machine base (1), a housing (2) is installed at the top of the machine base (1), a printing structure (3) is installed inside the housing (2), an angle adjustment structure (4) is also installed at the top of the machine base (1), and a clamping structure (5) is installed at the top of the angle adjustment structure (4). The angle adjustment structure (4) includes a base plate (401), an adjustment plate (402) is rotatably connected to the base plate (401), a moving part (405) is slidably connected to the base plate (401) via a first guide rail (403) and a first slider (404), a rotating part (406) is rotatably connected to the side end of the moving part (405), and the other end of the rotating part (406) is rotatably connected to the adjustment plate (402); The clamping structure (5) includes a column (501), which is installed on the top right side of the adjusting plate (402). A chuck (502) is rotatably connected to the top of the column (501). A second motor (503) is installed on the side of the column (501). The output shaft of the second motor (503) is connected to the chuck (502). A support plate (507) is slidably connected to the top left side of the adjusting plate (402). A chuck (508) is rotatably connected to the top of the support plate (507). The bottom end of the support plate (507) is fixedly connected to the slide plate (506). The clamping structure (5) further includes a second guide rail (504) and a second slider (505). The slide plate (506) is slidably connected to the adjusting plate (402) through the second guide rail (504) and the second slider (505). A rodless cylinder (509) is installed at the top of the adjusting plate (402). The moving part of the rodless cylinder (509) is connected to the bottom end of the support plate (507). The clamp (502) is provided with a positioning structure (6), the positioning structure (6) includes positioning posts (601), three positioning posts (601) are fixedly connected in a circular array on the end face of the clamp (502), and anti-foolproof blocks (605) are also fixedly connected in a vertical relationship on the end face of the clamp (502). The positioning structure (6) also includes a fixing seat (602). Multiple fixing seats (602) are fixedly connected in a circular array on the end face of the clamp (502). A spring (603) is fixedly connected to one end of the fixing seat (602), and a positioning plate (604) is fixedly connected to the other end of the spring (603). The positioning plate (604) is slidably connected to the clamp (502).

2. A UV printer according to claim 1, characterized in that: The angle adjustment structure (4) also includes a motor mounting base (407), which is mounted on the base plate (401). A lead screw seat (409) is also mounted on the base plate (401). A first lead screw (410) is rotatably connected between the motor mounting base (407) and the lead screw seat (409). The first lead screw (410) passes through the moving part (405) and is threadedly connected to the moving part (405). A first motor (408) is mounted on the side end of the motor mounting base (407). The output end of the first motor (408) is connected to the first lead screw (410) through a coupling.

3. A UV printer according to claim 1, characterized in that: A curing structure (7) is installed on the adjusting plate (402). The curing structure (7) includes a second linear motor module (701). The second linear motor module (701) is installed at the top of the adjusting plate (402). A vertical plate (702) is installed on the moving part of the second linear motor module (701). A curing plate (703) is rotatably connected to the top of the vertical plate (702) which has an L-shaped structure. A UV lamp (704) is installed on the curing plate (703). A cover (705) is installed outside the UV lamp (704).

4. A UV printer according to claim 1, characterized in that: A plasma cleaning structure (8) is installed at one end of the machine base (1) near the clamping structure (5). The plasma cleaning structure (8) includes a first cleaning seat (801). The first cleaning seat (801) is installed at the top of the machine base (1). A threaded block (804) is slidably connected to the top of the first cleaning seat (801) through two first guide rods (802). A second lead screw (803) is rotatably connected inside the first cleaning seat (801). The threaded block (804) is threadedly connected. A second cleaning seat (805) is installed on the top of the threaded block (804) outside the second lead screw (803). A placement frame (808) is slidably connected inside the second cleaning seat (805) via two second guide rods (806). A third lead screw (807) is rotatably connected inside the second cleaning seat (805). The placement frame (808) is threadedly connected to the third lead screw (807). A plasma cleaning gun head (809) is provided on the top of the placement frame (808).

5. A UV printer according to claim 1, characterized in that: The printing structure (3) includes a gantry (301), which is installed at the top of the machine base (1). A first linear motor module (302) is installed at the front end of the gantry (301). A slide (303) is installed on the moving part of the first linear motor module (302). A lead screw module (305) is installed at the front end of the slide (303). An mounting plate (306) is installed on the moving part of the lead screw module (305). An ink cartridge (307) is installed on the mounting plate (306). A printhead (308) is installed at the bottom end of the mounting plate (306). An electrostatic bar (309) is installed on the side end of the printhead (308). A baffle plate (310) is installed around the printhead (308). A control plate (304) is installed at the top of the slide (303).

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