Inkjet printer

Abstract

An ink jet printer includes: an ink ejection module including a head group including a head that ejects ink; an ink storage module storing ink; and a module receiving the ink from the ink storage module and transferring the ink to each of the head sets. Each of the modules includes: a body having a structure interconnectable in a first direction and including a first surface and a second surface opposite to each other in the first direction; tubes passing through the main body in a first direction and spaced apart from each other in a second direction crossing the first direction; a supply flow path and a recovery flow path disposed between at least one of the tubes and the ink ejection module and separated from each other; and a flow controller connected to the supply flow path between at least one of the tubes and the ink ejection module.

Description

Technical Field

[0001] The present disclosure relates to an inkjet printer. More specifically, the present disclosure relates to an inkjet printer for manufacturing a display device. Background Art

[0002] A display device may be manufactured by various processes. For example, a light-emitting layer included in the display device may be formed by an inkjet process. The light-emitting layer may be formed by ejecting ink containing a light-emitting material onto a substrate. The ink may be ejected onto the substrate by an inkjet printer. The inkjet printer may include a plurality of heads. The plurality of heads may be assembled into a head group. Summary of the Utility Model

[0003] As the display device becomes larger, the size of the inkjet printer also becomes larger. As the size of the inkjet printer becomes larger, the number of head groups also increases.

[0004] An embodiment provides a circulating inkjet printer.

[0005] An embodiment provides a non-circulating inkjet printer.

[0006] An inkjet printer in an embodiment includes: an ink ejection module including a plurality of head groups, each of the plurality of head groups including a plurality of heads for ejecting ink; an ink storage module for storing the ink; and a plurality of modules for receiving the ink from the ink storage module and delivering the ink to each of the plurality of head groups. Each of the plurality of modules includes: a main body having a structure that can be interconnected in a first direction and including a first surface and a second surface opposite to the first surface in the first direction; a plurality of tubes passing through the main body in the first direction and separated from each other in a second direction intersecting the first direction; a flow path portion provided between at least one of the plurality of tubes and the ink ejection module; and a flow rate controller connected to the flow path portion.

[0007] In an embodiment, the flow path portion may include a supply flow path and a recovery flow path separated from each other, and the flow rate controller may be connected to the supply flow path between at least one of the plurality of tubes and the ink ejection module.

[0008] In an embodiment, the plurality of modules may include a first module to an nth module (where n is a natural number of 2 or greater) and a connection block. The first module receives the ink from the ink storage module, and the nth module is the farthest from the first module in the first direction. The first surface of the main body of the nth module may contact the (n - 1)th module, and the second surface of the main body of the nth module may contact the connection block.

[0009] In one embodiment, the plurality of tubes may include a first tube, a second tube connected to the recovery flow path, a third tube connected to the supply flow path, and a fourth tube. The connection block may include a first connection tube connecting the first tube and the second tube and a second connection tube connecting the third tube and the fourth tube.

[0010] In one embodiment, the first tube of the first module may include a first end and a second end spaced apart from the first end in the first direction. The first end may be connected to the ink storage module, and the second end may be connected to the first tube of the second module. The first tube of the nth module may include a third end and a fourth end spaced apart from the third end in the first direction. The third end may be connected to the first tube of the (n - 1)th module, and the fourth end may be connected to the first connection tube. The fourth tube of the first module may include a fifth end and a sixth end spaced apart from the fifth end in the first direction. The fifth end may be connected to the ink storage module, and the sixth end may be connected to the fourth tube of the second module. Also, the fourth tube of the nth module may include a seventh end and an eighth end spaced apart from the seventh end in the first direction. The seventh end may be connected to the fourth tube of the (n - 1)th module, and the eighth end may be connected to the second connection tube.

[0011] In one embodiment, the inkjet printer may further include: a first heater passing through the main body and disposed between the first tube and the second tube; and a second heater passing through the main body and disposed between the third tube and the fourth tube.

[0012] In one embodiment, the inkjet printer may further include: a thermometer disposed in the main body; and a temperature controller connected to the first heater and the second heater.

[0013] In one embodiment, the plurality of modules may further include: a pressure compensation block disposed on the bottom surface of the plurality of modules.

[0014] In one embodiment, each of the plurality of modules may further include: an alignment pin protruding from the first surface; and an alignment hole defined at a position corresponding to the alignment pin in the second surface. And the alignment hole may have a degree of freedom in the second direction.

[0015] In one embodiment, each of the plurality of modules may further include: a sealing member surrounding each of the plurality of tubes on the second surface.

[0016] In one embodiment, the ink storage module may include an ink cartridge, a first reservoir, and a second reservoir. The ink may flow into: a first path that supplies the ink from the ink cartridge to the first reservoir; a second path that circulates the ink between the first reservoir and the second reservoir; a third path that recovers the ink from the second reservoir to the ink cartridge; and a fourth path that circulates the ink between the plurality of modules and the second reservoir.

[0017] An inkjet printer in one embodiment includes an inkjet module including a plurality of head groups, each of the plurality of head groups including a plurality of heads for ejecting ink; an ink storage module for storing the ink; and a plurality of modules for receiving the ink from the ink storage module and delivering the ink to each of the plurality of head groups. Each of the plurality of modules may include: a body having a structure that is interconnectable in a first direction and including a first surface and a second surface opposite the first surface in the first direction; a plurality of tubes passing through the body in the first direction and separated from each other in a second direction intersecting the first direction; a first supply flow path and a second supply flow path provided between at least one of the plurality of tubes and the inkjet module and separated from each other; and a flow controller connected to at least one of the first supply flow path and the second supply flow path between at least one of the plurality of tubes and the inkjet module.

[0018] In one embodiment, the plurality of modules may include a first module to an nth module (where n is a natural number of 2 or greater) and a connection block. The first module receives the ink from the ink storage module, and the nth module is the farthest from the first module in the first direction. The first surface of the body of the nth module may contact the (n - 1)th module, and the second surface of the body of the nth module may contact the connection block.

[0019] In one embodiment, the plurality of tubes may include a first tube, a second tube connected to the second supply flow path, a third tube connected to the first supply flow path, and a fourth tube. The connection block may include a first connection tube connecting the first tube and the second tube and a second connection tube connecting the third tube and the fourth tube.

[0020] In one embodiment, the first tube of the first module may include a first end and a second end spaced apart from the first end in the first direction. The first end may be connected to the ink storage module, and the second end may be connected to the first tube of the second module. The first tube of the nth module may include a third end and a fourth end spaced apart from the third end in the first direction. The third end may be connected to the first tube of the (n - 1)th module, and the fourth end may be connected to the first connecting tube. The fourth tube of the first module may include a fifth end and a sixth end spaced apart from the fifth end in the first direction. The fifth end may be connected to the ink storage module, and the sixth end may be connected to the fourth tube of the second module. The fourth tube of the nth module may include a seventh end and an eighth end spaced apart from the seventh end in the first direction. The seventh end may be connected to the fourth tube of the (n - 1)th module, and the eighth end may be connected to the second connecting tube.

[0021] In one embodiment, the inkjet printer may further include: a first heater passing through the main body and disposed between the first tube and the second tube; and a second heater passing through the main body and disposed between the third tube and the fourth tube.

[0022] In one embodiment, the inkjet printer may further include: a thermometer disposed in the main body; and a temperature controller connected to the first heater and the second heater.

[0023] In one embodiment, the plurality of modules may further include: a pressure compensation block disposed on the bottom surface of the plurality of modules.

[0024] In one embodiment, each of the plurality of modules may further include an alignment pin protruding from the first surface; and an alignment hole defined in the second surface at a position corresponding to the alignment pin. The alignment hole may have degrees of freedom in the second direction.

[0025] In one embodiment, each of the plurality of modules may further include: a sealing member surrounding each of the plurality of tubes on the second surface.

[0026] In one embodiment, the ink storage module may include an ink cartridge, a first reservoir, and a second reservoir. The ink may flow into: a first path for supplying the ink from the ink cartridge to the first reservoir; a second path for supplying the ink from the first reservoir to the second reservoir; and a third path for supplying the ink from the second reservoir to the plurality of modules.

[0027] An inkjet printer in an embodiment of the present disclosure may include: an ink ejection module including a plurality of head groups, where each head group includes a plurality of heads for ejecting ink; an ink storage module for storing ink; and a plurality of modules for receiving ink from the ink storage module and delivering the ink to each of the plurality of head groups. Each of the plurality of modules includes: a body having a structure that can be interconnected in a first direction and including a first surface and a second surface opposite the first surface in the first direction; a plurality of tubes passing through the body in the first direction and having a separated structure in a second direction intersecting the first direction; a first supply flow path and a first recovery flow path (or a second supply flow path) provided between at least one of the plurality of tubes and the ink ejection module and having a separated structure from each other; and a flow rate controller connected to the first supply flow path (and / or the second supply flow path) between the tube and the ink ejection module. Accordingly, the ink delivery module can be easily added or removed in response to an increase or decrease in the number of head groups.

[0028] In addition, the plurality of modules included in the inkjet printer may further include a heater. Accordingly, the inkjet printer can keep the temperature of the ink flowing along the plurality of modules constant.

[0029] In addition, the plurality of modules included in the inkjet printer may further include a pressure compensation block. Accordingly, the inkjet printer can prevent a pressure drop of the ink flowing along the plurality of modules.

[0030] In addition, the plurality of modules included in the inkjet printer may further include alignment pins and alignment holes. The alignment holes may have degrees of freedom in the second direction. Accordingly, even when there are steps in the second direction, the alignment pins can be received in the alignment holes.

[0031] In addition, the plurality of modules included in the inkjet printer may further include a sealing member. Accordingly, the inkjet printer can prevent liquid from leaking from the connection parts of the plurality of modules. Description of the Drawings

[0032] Exemplary non-limiting embodiments will be understood more clearly from the following detailed description in conjunction with the accompanying drawings.

[0033] Figure 1 A plan view of an inkjet printer according to an embodiment of the present disclosure.

[0034] Figure 2 For illustration Figure 1 A block diagram of an embodiment of an ink supply system included in the illustrated inkjet printer.

[0035] Figure 3 For illustration Figure 2 A block diagram of an ink storage module included in the illustrated ink supply system.

[0036] Figure 4 For illustrationFigure 3 The block diagram of the circulation control module included in the ink storage module.

[0037] Figure 5 For illustration Figure 3 The diagram of the pressure control module included in the ink storage module.

[0038] Figure 6 For illustration Figure 2 The diagram of the ink transfer module and the ink ejection module included in the ink supply system.

[0039] Figures 7 to 14 For illustration Figure 6 The diagram of the ink transfer module components included in the ink transfer module.

[0040] Figure 15 For illustration Figure 1 The block diagram of an embodiment of the ink supply system included in an inkjet printer.

[0041] Figure 16 For illustration Figure 15 The block diagram of the ink storage module included in the ink supply system.

[0042] Figure 17 For illustration Figure 16 The diagram of the pressure control module included in the ink storage module.

[0043] Figure 18 For illustration Figure 15 The diagram of the ink transfer module and the ink ejection module included in the ink supply system.

[0044] Figures 19 to 22 For illustration Figure 18 The diagram of the ink transfer module components included in the ink transfer module. Detailed implementation

[0045] Embodiments of the present disclosure will now be described more fully hereinafter with reference to the accompanying drawings that show various embodiments. However, the present utility model can be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the scope of the present utility model to those skilled in the art. Like reference numerals refer to like elements throughout.

[0046] It will be understood that when an element is referred to as being "on" another element, it can be directly on the other element or there can be intervening elements between them. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements.

[0047] It will be understood that although the terms "first", "second", "third", etc. may be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, without departing from the teachings herein, the first element, component, region, layer or section discussed below may be referred to as the second element, component, region, layer or section.

[0048] The terms used herein are for the purpose of describing particular embodiments only and are not intended to be limiting. Unless the context clearly dictates otherwise, as used herein, the singular forms "a" and "the" are intended to include the plural forms, which include "at least one". "Or" means "and / or". As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. It will be further understood that the terms "comprises" or "comprising", when used in this specification, specify the presence of the stated features, regions, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, regions, integers, steps, operations, elements, components and / or groups thereof.

[0049] In addition, relative terms such as "lower" or "bottom" and "upper" or "top" may be used herein to describe the relationship of one element to another as illustrated in the figures. It will be understood that the relative terms are intended to encompass different orientations of the device in addition to the orientation depicted in the figures. For example, if the device in one of the figures is flipped, the element described as on the "lower" side of the other element will then be oriented on the "upper" side of the other element. Thus, depending on the particular orientation of the figure, the exemplary term "lower" can encompass both the "lower" and "upper" orientations. Similarly, if the device in one of the figures is flipped, the element described as "below" or "beneath" the other element will then be oriented "above" the other element. Thus, the exemplary terms "below" or "beneath" can include both the "above" and "below" orientations.

[0050] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and this disclosure, and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0051] Figure 1 Is a plan view of an embodiment of an inkjet printer according to the present disclosure.

[0052] ReferenceFigure 1 In an embodiment of the present disclosure, the inkjet printer 1 may include a processor 10, a maintenance device 20, and a controller 30.

[0053] The processor 10 may process an inkjet process by ejecting ink onto a substrate G. The processor 10 may include a first stage 12, a gantry 14, an ink supply system ISS, and a first driver.

[0054] The substrate G may be disposed on the first stage 12. In one embodiment, for example, air holes HO may be formed in the first stage 12. In one embodiment, for example, the air holes HO may be connected to a vacuum forming device. The vacuum forming device may supply a suction pressure to the air holes HO. Accordingly, the substrate G may be fixed to the first stage 12.

[0055] When the substrate G is not fixed, the substrate G may shake during the inkjet process. In this case, the ink may be ejected onto an unintended area on the substrate G. Accordingly, defects (e.g., color mixing, dark spots, etc.) may occur in the display device.

[0056] The inkjet printer 1 in the embodiment may fix the substrate G to the first stage 12 by a suction pressure. Accordingly, defects in the display device due to substrate shaking may be prevented.

[0057] However, the present disclosure is not limited thereto. The vacuum forming device may supply a negative pressure to the air holes HO. Accordingly, the substrate G may be suspended on the first stage 12.

[0058] The gantry 14 may support the ink supply system ISS. The ink supply system ISS may eject ink onto the substrate G on the first stage 12. For this purpose, the gantry 14 may be disposed on the first stage 12.

[0059] The first driver may guide the movement path of the gantry 14. In one embodiment, for example, the first driver may include a first rail 16 and a second rail 18. The gantry 14 may slide along the first rail 16 and the second rail 18. In one embodiment, for example, the first rail 16 and the second rail 18 may be implemented as a linear motor (“LM”) guiding system. However, the present disclosure is not limited thereto.

[0060] The maintenance device 20 may include a second stage 22, a first plate 24, a calibration plate 26, and a second driver. The maintenance device 20 may measure the ink ejection position and whether the ink is ejected onto the substrate G, and provide the measurement result to the controller 30.

[0061] The ink supply system ISS can be fixed to the gantry 14. However, the present disclosure is not limited thereto. In one embodiment, for example, the ink supply system ISS can be movably disposed on the gantry 14. In one embodiment, for example, the ink supply system ISS can be mounted to be rotatably movable on the gantry 14. In another embodiment, the ink supply system ISS can be mounted to be linearly movable on the gantry 14.

[0062] The ink supply system ISS can supply ink. In one embodiment, for example, the ink can be an ink containing quantum dots. However, the present disclosure is not limited thereto. The ink can include various materials used in manufacturing a display device.

[0063] The ink supply system ISS can include a plurality of head groups (e.g., Figure 6 a plurality of head groups 310), and each of the head groups can include a plurality of heads (e.g., Figure 6 a first head 312, a second head 314, and a third head 316). Each of the plurality of heads can include a plurality of nozzles. The plurality of nozzles can be arranged in a matrix at regular intervals. In one embodiment, for example, the plurality of nozzles can adjust the ejection amount according to the voltage applied to the piezoelectric element. The ink supply system ISS will be described in detail later with reference to Figure 2 this.

[0064] Like the first stage 12, the second stage 22 can be a base on which various components can be disposed (e.g., mounted). In one embodiment, for example, the size of the second stage 22 can be smaller than the size of the first stage 12. However, the present disclosure is not limited thereto. In one embodiment, for example, the size of the second stage 22 can be larger than the size of the first stage 12, or can be substantially the same as the size of the first stage 12.

[0065] The second driver can guide the movement path of the first plate 24. In one embodiment, the second driver can include a third guide rail 28. For example, the first plate 24 can slide along the third guide rail 28.

[0066] However, the present disclosure is not limited thereto. In one embodiment, for example, each of the first driver and the second driver can include different components. In an alternative embodiment, the first guide rail 16, the second guide rail 18, and / or the third guide rail 28 can be omitted.

[0067] The first plate 24 can be moved on the second stage 22 by the second driver. In one embodiment, for example, the first plate 24 can be moved parallel to the substrate G by the second driver. However, the present disclosure is not limited thereto. In one embodiment, for example, the first plate 24 can move away from or closer to the substrate G.

[0068] The calibration plate 26 can measure the ejection position on the substrate G. In one embodiment, the calibration plate 26 can be disposed on the first plate 24, and can include, for example, alignment marks, rulers, etc.

[0069] The controller 30 can maintain the processor 10 and the maintenance device 20. The controller 30 can receive measurement results from the maintenance device 20 and detect defective nozzles or adjust the ejection position. However, the present disclosure is not limited thereto. In one embodiment, for example, the controller 30 can perform various control operations.

[0070] The controller 30 can include a process controller, a control program, an input module, an output module (or a display module), a memory module, etc. In one embodiment, the process controller can include, for example, a microprocessor. The microprocessor can control the components of the inkjet printer 1. The control program can execute various processes of the inkjet printer 1 under the control of the process controller. The memory module can store programs for executing various processes of the inkjet printer 1 according to various data, processing conditions, etc., that is, processing schemes. In one embodiment, the controller 30 can be implemented as, for example, a computer, a server, etc.

[0071] Figure 1 The components of the inkjet printer 1 are exemplary, and these components can be omitted or other components can be further included. In one embodiment, the inkjet printer 1 can further include, for example, a vision module for photographing the substrate G.

[0072] Figure 2 For illustration Figure 1 A block diagram of an embodiment of an ink supply system included in an inkjet printer.

[0073] Reference Figure 2 , the ink supply system ISS can include an ink storage module 100, an ink transfer module 200, and an ink ejection module 300.

[0074] In one embodiment, the ink storage module 100 can temporarily store ink. The ink transfer module 200 can receive ink from the ink storage module 100 and transfer the ink to the ink ejection module 300. The ink ejection module 300 can eject ink.

[0075] Details will be described later with reference to Figure 3 each configuration of the ink storage module 100, the ink transfer module 200, and the ink ejection module 300.

[0076] Figure 3 For illustration Figure 2 A block diagram of an ink storage module included in an ink supply system.

[0077] Reference Figure 2 And Figure 3 , in one embodiment, the ink storage module 100 can include an ink cartridge 110, a first storage 120, a second storage 130, a pressure control module 140, and a circulation control module 150.

[0078] The ink cartridge 110 can receive ink from an external ink source and store the ink.

[0079] The first reservoir 120 and the second reservoir 130 can receive ink from the ink cartridge 110 and store the ink. In one embodiment, for example, the first reservoir 120 can be a supply reservoir, and the second reservoir 130 can be a recycling reservoir for recycling unused ink. However, the present disclosure is not limited thereto. In one embodiment, for example, the first reservoir 120 can be a recycling reservoir, and the second reservoir 130 can be a supply reservoir.

[0080] The circulation control module 150 can be disposed in a path for recycling unused ink from the inkjet module 300. The circulation control module 150 can include a first circulation control module 152 and a second circulation control module 154. The first circulation control module 152 can be disposed in a path for recycling ink from the second reservoir 130 to the ink cartridge 110. The second circulation control module 154 can be disposed in a path for recycling ink from the ink transfer module 200 to the second reservoir 130.

[0081] Reference will be made later Figure 4 to describe the circulation control module 150 in detail.

[0082] The pressure control module 140 can control the internal pressure of the ink cartridge 110. The ink cartridge 110 can supply a predetermined amount of ink to the first reservoir 120 based on the pressure provided by the pressure control module 140.

[0083] Reference will be made later Figure 5 to describe the pressure control module 140 in detail.

[0084] In one embodiment, ink can flow into a first path P1, a second path P2, a third path P3, and a fourth path P4. In one embodiment, for example, the first path P1 can be a path for supplying ink from the ink cartridge 110 to the first reservoir 120. The second path P2 can be a path for circulating ink between the first reservoir 120 and the second reservoir 130. The third path P3 can be a path for recycling ink from the second reservoir 130 to the ink cartridge 110. The fourth path P4 can be a path for circulating ink between the second reservoir 130 and the ink transfer module 200 (e.g., Figure 6 the plurality of modules 210 therein).

[0085] The circulating ink storage module 100 can prevent particles (e.g., quantum dots) in the ink from settling and increase the lifespan of the inkjet printer 1.

[0086] Figure 4 For illustration Figure 3 a block diagram of the circulation control module included in the ink storage module.

[0087] Reference Figure 3 and Figure 4, for example, each of the circulation control modules 150 may include a pump 1510, a filter 1520, a gas remover 1530, and a flowmeter 1540.

[0088] The pump 1510 may provide pressure such that the ink can flow. A single pump 1510 may be included, or multiple pumps 1510 may be included. To keep the water level in the second reservoir 130 constant, the pressure input to the pump 1510 may vary.

[0089] The filter 1520 may filter the recycled ink. A single filter 1520 may be included, or multiple filters 1520 may be included.

[0090] The gas remover 1530 may remove gas from the recycled ink.

[0091] The flowmeter 1540 may measure the flow rate of the ink. In one embodiment, for example, the flowmeter 1540 included in the first circulation control module 152 may measure the flow rate of the ink flowing from the second reservoir 130 to the ink cartridge 110. For example, the flowmeter 1540 included in the second circulation control module 154 may measure the flow rate of the ink flowing from the ink transfer module 200 to the second reservoir 130.

[0092] Figure 5 For illustration Figure 3 of the pressure control module included in the ink storage module.

[0093] Reference Figure 3 and Figure 5 , the ink storage module 100 may include a first reservoir 120, a second reservoir 130, a pressure control module 140, a pump 1510, and a water level gauge 160.

[0094] The pressure control module 140 may control the pressure of the first reservoir 120, the pressure of the second reservoir 130, and the pressure of the pump 1510. In one embodiment, the pressure control module 140 may be implemented as, for example, a pressure controller module ("PCM") including a pressure controller ("PCON") board. However, the present disclosure is not limited thereto.

[0095] The pressure control module 140 may independently control the pressure of the first reservoir 120 and the pressure of the second reservoir 130. In one embodiment, for example, one pressure control module 140 may be connected to the first reservoir 120 and the second reservoir 130, and the pressure of the first reservoir 120 and the pressure of the second reservoir 130 may be independently controlled. However, the present disclosure is not limited thereto. In one embodiment, for example, the pressure control module 140 may be provided separately for each of the first reservoir 120 and the second reservoir 130.

[0096] The water level gauge 160 may include a first water level gauge 1610 and a second water level gauge 1620. In one embodiment, for example, the first water level gauge 1610 may measure the water level of the ink stored in the first reservoir 120. The second water level gauge 1620 may measure the water level of the ink stored in the second reservoir 130.

[0097] The water level of the second reservoir 130 measured by the second water level gauge 1620 may be transmitted to the pressure control module 140. The pressure control module 140 may use the pump 1510 to cause the ink to flow from the first reservoir 120 to the second reservoir 130 (or from the second reservoir 130 to the first reservoir 120).

[0098] Figure 6 For illustration Figure 2 of the ink transfer module and the ink jet module included in the ink supply system shown.

[0099] Reference Figure 2 and Figure 6 In one embodiment, the ink transfer module 200 may include a plurality of modules 210. The plurality of modules 210 may receive the ink IK from the ink storage module 100 and transfer the ink IK to the ink jet module 300.

[0100] In one embodiment, the ink jet module 300 may include a plurality of head groups 310. Each of the plurality of head groups 310 may include a plurality of heads that eject the ink IK. In one embodiment, one of the plurality of head groups 310 may include, for example, a first head 312, a second head 314, and a third head 316. Each of the first head 312, the second head 314, and the third head 316 may eject the ink IK.

[0101] In one embodiment, the plurality of modules 210 may receive the ink IK from the ink storage module 100 and transfer the ink IK to each of the plurality of head groups 310.

[0102] In one embodiment, each of the plurality of modules 210 may include a main body BO, a plurality of tubes PP, a flow path portion FP, a heating portion HP, a flow controller 240, and a flow meter 250.

[0103] In one embodiment, the main body BO may have a structure that can be interconnected in a first direction DR1. Accordingly, the plurality of modules 210 may be added or removed according to the number of the head groups 310.

[0104] Reference will be made later to Figures 8 to 13 describe the structure of the main body BO in detail.

[0105] In one embodiment, the plurality of tubes PP may have a structure that passes through the main body BO in the first direction DR1 and are separated from each other in a second direction DR2 that intersects the first direction DR1.

[0106] In one embodiment, the plurality of tubes PP may include a first tube PI1, a second tube PI2, a third tube PI3, and a fourth tube PI4. The first tube PI1, the second tube PI2, the third tube PI3, and the fourth tube PI4 may pass through the body BO in a first direction DR1 and may be spaced apart from each other in a second direction DR2.

[0107] In one embodiment, a flow path portion FP may be disposed between at least one of the plurality of tubes PP and the inkjet module 300. The flow path portion FP may include a first supply flow path SF1 and a first recovery flow path RF1 having a separated structure from each other.

[0108] In one embodiment, the second tube PI2 may be connected to the first recovery flow path RF1, and the third tube PI3 may be connected to the first supply flow path SF1.

[0109] will be described later with reference to Figure 7 the connection piping system between the plurality of tubes PP and the flow path portion FP in detail.

[0110] In one embodiment, the heating portion HP may include a first heater HE1 and a second heater HE2. The first heater HE1 may pass through the body BO and be disposed between the first tube PI1 and the second tube PI2. The second heater HE2 may pass through the body BO and be disposed between the third tube PI3 and the fourth tube PI4.

[0111] In one embodiment, the flow rate controller 240 may be connected to the flow path portion FP. In one embodiment, the flow rate controller 240 may be connected to the first supply flow path SF1 between at least one of the plurality of tubes PP and the inkjet module 300. In one embodiment, for example, the tube may be the third tube PI3. The flow rate controller 240 may control the flow rate of the ink IK so that a uniform amount of ink IK is supplied to each of the plurality of head groups 310.

[0112] In one embodiment, the flow meter 250 may be connected to the first recovery flow path RF1 between at least one of the plurality of tubes PP and the inkjet module 300. In one embodiment, for example, the tube may be the second tube PI2. The flow meter 250 may measure the flow rate of the ink IK flowing out from each of the plurality of head groups 310.

[0113] In one embodiment, the ink transfer module 200 may further include a thermometer 260 and a temperature controller 270.

[0114] The thermometer 260 may be disposed in the body BO. In one embodiment, for example, the thermometer 260 may be disposed in the space between the second tube PI2 and the third tube PI3. However, the present disclosure is not limited thereto.

[0115] The thermometer 260 can measure the temperature of the main body BO and supply the measured temperature to the temperature controller 270.

[0116] The temperature controller 270 can be connected to the first heater HE1 and the second heater HE2. The temperature controller 270 can control the first heater HE1 and / or the second heater HE2 according to the measured temperature. In one embodiment, for example, when the temperature of the first heater HE1 rises, heat can be supplied to the first tube PI1 and the second tube PI2, and the flow rate of the ink IK flowing in through the first recovery flow path RF1 can be faster. When the temperature of the second heater HE2 rises, heat can be supplied to the third tube PI3 and the fourth tube PI4, and the flow rate of the ink IK flowing out through the first supply flow path SF1 can be faster.

[0117] As Figure 6 shown, the plurality of modules 210 can be supplied in an assemblable form. In one embodiment, the plurality of modules 210 can include a first module 212 to an nth module (where n is a natural number of 2 or greater) and connection blocks (for example, a first connection block 280 and a second connection block 290). The connection blocks will be described in detail later with reference to Figure 11 and Figure 12 The first module 212 can receive the ink IK from the ink storage module 100. The nth module can be the farthest from the first module 212 in the first direction DR1.

[0118] In

[0119] In Figure 6 it is described that the plurality of modules 210 include a first module 212, a second module 214, and a third module 216, however, the present disclosure is not limited thereto. In one embodiment, for example, the plurality of modules 210 can variably correspond to the number of the head groups 310. That is, the plurality of modules 210 can include two or four or more modules.

[0120] Figures 7 to 14 For illustration Figure 6 of the diagram of the ink transfer module components included in the ink transfer module.

[0121] Referring to Figure 2 、 Figure 6 and Figure 7 the plurality of modules 210 included in the ink transfer module 200 can include a first to an nth module, a first connection block 280, and a second connection block 290. In one embodiment, for example, the plurality of modules 210 can include a first module 212, a second module 214, a third module 216, a first connection block 280, and a second connection block 290.

[0122] As described above, the first module 212 can receive the ink IK from the ink storage module 100. The third module 216 can be the farthest from the first module 212 in the first direction DR1.

[0123] In one embodiment, each of the first module 212, the second module 214, and the third module 216 can include a plurality of tubes PP. The plurality of tubes PP can have a structure that passes through the main body BO in the first direction DR1 and is separated from each other in the second direction DR2.

[0124] In one embodiment, the plurality of tubes PP can include a first tube PI1, a second tube PI2, a third tube PI3, and a fourth tube PI4. The first tube PI1, the second tube PI2, the third tube PI3, and the fourth tube PI4 can pass through the main body BO in the first direction DR1 and can be spaced apart from each other in the second direction DR2.

[0125] In one embodiment, each of the first module 212, the second module 214, and the third module 216 can include a flow path portion FP. The flow path portion FP can be provided between at least one of the plurality of tubes PP and the inkjet module 300.

[0126] The flow path portion FP can include a first supply flow path SF1 and a first recovery flow path RF1 having a separated structure from each other. In one embodiment, the second tube PI2 can be connected to the first recovery flow path RF1, and the third tube PI3 can be connected to the first supply flow path SF1.

[0127] In one embodiment, the first connection block 280 can contact one surface of the third module 216. The first connection block 280 can include a first connection tube CPI1 and a second connection tube CPI2.

[0128] In one embodiment, the first connection tube CPI1 can connect the first tube PI1 and the second tube PI2. Accordingly, the ink IK flows into the second tube PI2 through the first recovery flow path RF1 and can be recovered to the ink storage module 100 through the first connection tube CPI1 and the first tube PI1 connected to the second tube PI2.

[0129] In one embodiment, the second connection tube CPI2 can connect the third tube PI3 and the fourth tube PI4. Accordingly, the ink IK can flow into the fourth tube PI4 from the ink storage module 100, and the ink IK can flow to the inkjet module 300 through the second connection tube CPI2 and the third tube PI3 connected to the fourth tube PI4.

[0130] More specifically, in one embodiment, the first tube PI1 of the first module 212 may include a first end EP1 and a second end EP2. The second end EP2 may be spaced apart from the first end EP1 in a first direction DR1. The first end EP1 may be connected to the ink storage module 100, and the second end EP2 may be connected to the first tube PI1 of the second module 214.

[0131] In one embodiment, the first tube PI1 of the nth module may include a third end EP3 and a fourth end EP4. In one embodiment, for example, the first tube PI1 of the third module 216 may include a third end EP3 and a fourth end EP4. The fourth end EP4 may be spaced apart from the third end EP3 in the first direction DR1. The third end EP3 may be connected to the first tube PI1 of the (n - 1)th module. In one embodiment, for example, the third end EP3 may be connected to the first tube PI1 of the second module 214. The fourth end EP4 may be connected to the first connection tube CPI1.

[0132] In one embodiment, the fourth tube PI4 of the first module 212 may include a fifth end EP5 and a sixth end EP6. The sixth end EP6 may be spaced apart from the fifth end EP5 in the first direction DR1. The fifth end EP5 may be connected to the ink storage module 100, and the sixth end EP6 may be connected to the fourth tube PI4 of the second module 214.

[0133] In one embodiment, the fourth tube PI4 of the nth module may include a seventh end EP7 and an eighth end EP8. In one embodiment, for example, the fourth tube PI4 of the third module 216 may include a seventh end EP7 and an eighth end EP8. The eighth end EP8 may be spaced apart from the seventh end EP7 in the first direction DR1. The seventh end EP7 may be connected to the fourth tube PI4 of the (n - 1)th module. In one embodiment, for example, the seventh end EP7 may be connected to the fourth tube PI4 of the second module 214. The eighth end EP8 may be connected to the second connection tube CPI2.

[0134] In one embodiment, each of the first module 212, the second module 214, and the third module 216 may include a flow controller 240 connected to a supply flow path between at least one of the plurality of tubes PP and the ink jet module 300. In one embodiment, for example, the flow controller 240 may be connected to each of the first supply flow path SF1, the second supply flow path SF2, and the third supply flow path SF3. Accordingly, the flow controller 240 may control the flow rate of the ink IK such that a uniform amount of the ink IK flows into each of the first supply flow path SF1, the second supply flow path SF2, and the third supply flow path SF3.

[0135] In one embodiment, each of the first module 212, the second module 214, and the third module 216 may include a flowmeter 250 connected to a recovery flow path between at least one of the plurality of tubes PP and the inkjet module 300. In one embodiment, for example, the flowmeter 250 may be connected to each of the first recovery flow path RF1, the second recovery flow path RF2, and the third recovery flow path RF3. Accordingly, the flowmeter 250 may measure the flow rate of the ink IK flowing into the first recovery flow path RF1, the second recovery flow path RF2, and the third recovery flow path RF3 from each of the plurality of head groups 310.

[0136] Reference Figure 7 and Figure 8 , the plurality of modules 210 may include a first module 212 to an nth module. Each of the first module 212 to the nth module may have substantially the same structure. Therefore, the following description will focus on the second module 214.

[0137] In one embodiment, the first surface F1 of the main body BO of the first module 212 may contact the second connection block 290, and the second surface F2 may contact the second module 214. The first surface F1 of the main body BO of the second module 214 may contact the first module 212, and the second surface F2 may contact the third module 216. The first surface F1 of the main body BO of the third module 216 may contact the second module 214, and the second surface F2 may contact the first connection block 280.

[0138] The main body BO of the second module 214 may include a first surface F1, a second surface F2, a third surface F3, and a fourth surface F4. In one embodiment, for example, the first surface F1 and the second surface F2 may be opposite to each other in a first direction DR1. The third surface F3 and the fourth surface F4 may be opposite to each other in a direction DR3 (hereinafter also referred to as the "protrusion direction") that intersects the first direction DR1 and the second direction DR2.

[0139] In one embodiment, a recovery valve REV may be provided in the second tube PI2, and a supply valve SUV may be provided in the third tube PI3. In one embodiment, for example, the recovery valve REV may be provided between the main body BO and the first recovery flow path RF1. The supply valve SUV may be provided between the main body BO and the first supply flow path SF1. As Figure 7 shown, the supply valve SUV and the recovery valve REV may be formed to protrude in the protrusion direction (and / or in a direction opposite to the protrusion direction).

[0140] In one embodiment, for example, the first supply flow path SF1 and the first recovery flow path RF1 may be provided before and after the main body BO, respectively. In one embodiment, for example, the first supply flow path SF1 may include a first sub-supply pipe SSF1 and a second sub-supply pipe SSF2. The first recovery flow path RF1 may include a first sub-recovery pipe SRF1 and a second sub-recovery pipe SRF2.

[0141] In one embodiment, the pressure compensation block PCB may be provided on the bottom surface of a plurality of modules (e.g., the second module 214).

[0142] As described above, a plurality of modules may be added or removed in the first direction DR1. As the plurality of modules are added, steps may occur in the second direction DR2. The pressure compensation block PCB may compensate for the steps.

[0143] Reference Figure 8 、 Figure 9 and Figure 10 , in one embodiment, the alignment pin AP may be provided on the first surface F1 of the second module 214, and the alignment hole AH may be defined in the second surface F2.

[0144] In one embodiment, the alignment pin AP may protrude from the first surface F1. The alignment hole AH may be defined at a position corresponding to the alignment pin AP in the second surface F2.

[0145] In one embodiment, the alignment hole AH may have degrees of freedom in the second direction DR2. As described above, a plurality of modules may be added or removed in the first direction DR1. As the plurality of modules are added, steps may occur in the second direction DR2.

[0146] When the size of the alignment hole AH is substantially the same as the size of the alignment pin AP, as the steps are formed, the alignment pin AP may not be received in the alignment hole AH. Since the alignment hole AH is defined to have degrees of freedom in the second direction DR2, the alignment pin AP may be stably received in the alignment hole AH even when the steps are formed.

[0147] In one embodiment, the sealing member SM may be provided on the second surface F2 to surround each of the plurality of pipes PP. In one embodiment, the sealing member SM may be provided to surround each of, for example, the first pipe PI1, the second pipe PI2, the third pipe PI3, and the fourth pipe PI4.

[0148] Due to the provision of the sealing member SM, the connection portions of each of the first pipe PI1, the second pipe PI2, the third pipe PI3, and the fourth pipe PI4 (e.g., Figure 7Leakage at the first end EP1, second end EP2, third end EP3, fourth end EP4, fifth end EP5, sixth end EP6, seventh end EP7, and / or eighth end EP8).

[0149] In one embodiment, for example, fastening grooves CH may be defined in the body BO. Accordingly, the bodies BO may be connected to each other in, for example, a first direction DR1. In one embodiment, the bodies BO may be fastened using, for example, bolts and nuts. However, the present disclosure is not limited thereto. The bodies BO may be connected to each other in various ways.

[0150] Reference Figure 11 , Figure 12 and Figure 13 , a plurality of modules 210 may be supplied in an assemblable form. In one embodiment, the plurality of modules 210 may include a first module 212 to an nth module 21n, a first connection block 280, and a second connection block 290. n may be a natural number of 2 or greater.

[0151] In one embodiment, a first surface F1 of the first module 212 may contact the second connection block 290, and a second surface F2 may contact the second module 214. A first surface F1 of the body BO of the second module 214 may contact the first module 212, and a second surface F2 may contact the third module 216. A first surface F1 of the body BO of the nth module 21n may contact the (n - 1)th module, and a second surface F2 may contact the first connection block 280.

[0152] As Figure 2 , Figure 3 , Figure 7 and Figure 12 shown in, the second connection block 290 may be connected to the inkjet module 300. To this end, a first line LI1 and a second line LI2 may be provided between the second connection block 290 and the inkjet module 300. In one embodiment, for example, the first line LI1 may constitute a fourth path P4 through which ink is recovered from the inkjet module 300, and the second line LI2 may constitute a fourth path P4 through which ink is supplied to the inkjet module 300.

[0153] Reference Figure 14 , the first supply flow path SF1 may have a structure that branches to a plurality of head groups 310. The first recovery flow path RF1 may have a structure that integrates from the plurality of head groups 310. In Figure 14 , one of the plurality of head groups 310 is shown as including a first head 312, a second head 314, and a third head 316, but the present disclosure is not limited thereto. In one embodiment, for example, the number of branches of the first supply flow path SF1 and the first recovery flow path RF1 may vary according to the number of heads included in the plurality of head groups 310.

[0154] AsFigure 6 and Figure 14 As shown in Figure 14 , the flow controller 240 can be disposed in the first supply flow path SF1, and the flow meter 250 can be disposed in the first recovery flow path RF1.

[0155] Figure 15 For illustration Figure 1 is a block diagram of an embodiment of an ink supply system included in an inkjet printer.

[0156] In one embodiment, for example, Figure 15 the ink supply system ISS' has a non-circulating type ink storage module 100', and the ink transfer module 200' including only the supply flow path can be different. Therefore, hereinafter, the description overlapping with the ink supply system ISS described above with reference to Figures 2 to 14 will be omitted or simplified.

[0157] Referring to Figure 15 Figure 15 , the ink supply system ISS' can include an ink storage module 100', an ink transfer module 200', and an ink ejection module 300.

[0158] In one embodiment, the ink storage module 100' can temporarily store ink. The ink transfer module 200' can receive ink from the ink storage module 100' and transfer the ink to the ink ejection module 300. The ink ejection module 300 can eject ink.

[0159] Details of each of the ink storage module 100' and the ink transfer module 200' will be described later with reference to Figure 16 Figure 16 .

[0160] Figure 16 For illustration Figure 15 is a block diagram of an ink storage module included in an ink supply system.

[0161] Referring to Figure 15 and Figure 16 Figure 16 , in one embodiment, the ink storage module 100' can include an ink cartridge 110, a first reservoir 120, a second reservoir 130, and a pressure control module 140'.

[0162] The pressure control module 140' can control the internal pressure of the ink cartridge 110. The ink cartridge 110 can supply a predetermined amount of ink to the first reservoir 120 based on the pressure provided by the pressure control module 140'.

[0163] Details of the pressure control module 140' will be described later with reference to Figure 17 Figure 17 .

[0164] In one embodiment, ink can flow into a first path P1, a second path P2', and a third path P3'. In one embodiment, for example, the first path P1 can be a path for supplying ink from the ink cartridge 110 to the first reservoir 120. The second path P2' can be a path for supplying ink from the first reservoir 120 to the second reservoir 130. The third path P3' can be a path for supplying ink from the second reservoir 130 to the ink transfer module 200' (e.g., Figure 18 to the multiple modules 210' in

[0165] The non-recirculating ink storage module 100' can supply a relatively large amount of ink to the ink transfer module 200'.

[0166] Figure 17 For illustration Figure 16 is a diagram of the pressure control module included in the ink storage module shown.

[0167] Referring to Figure 16 and Figure 17 , the ink storage module 100' can include a first reservoir 120, a second reservoir 130, a pressure control module 140', and a pump 1510', and can include a water level gauge 1620.

[0168] The pressure control module 140' can control the pressure of the first reservoir 120, the pressure of the second reservoir 130, and the pressure of the pump 1510'.

[0169] The pressure control module 140' can control the pressure of the first reservoir 120. However, the present disclosure is not limited thereto. In one embodiment, for example, the pressure control module 140' can control the pressure of the first reservoir 120 and the pressure of the second reservoir 130.

[0170] The water level gauge 1620 can measure the water level of the ink stored in the second reservoir 130.

[0171] The water level of the second reservoir 130 measured by the water level gauge 1620 can be transmitted to the pressure control module 140'. The pressure control module 140' can use the pump 1510' to make the ink flow from the first reservoir 120 to the second reservoir 130.

[0172] Figure 18 For illustration Figure 15 is a diagram of the ink transfer module and the ink jet module included in the ink supply system shown.

[0173] Referring to Figure 15 and Figure 18 , in one embodiment, the ink transfer module 200' can include multiple modules 210'. The multiple modules 210' can receive the ink IK from the ink storage module 100' and transfer the ink IK to the ink jet module 300.

[0174] In one embodiment, the inkjet module 300 may include a plurality of head groups 310. Each of the plurality of head groups 310 may include a plurality of heads that eject ink IK. In one embodiment, for example, one of the plurality of head groups 310 may include a first head 312, a second head 314, and a third head 316. Each of the first head 312, the second head 314, and the third head 316 may eject ink IK.

[0175] In one embodiment, the plurality of modules 210' may receive ink IK from the ink storage module 100' and convey the ink IK to each of the plurality of head groups 310.

[0176] In one embodiment, each of the plurality of modules 210' may include a body BO, a plurality of tubes PP, a flow path portion FP', a heating portion HP, and a flow controller (e.g., Figure 20 the flow controller 240).

[0177] In one embodiment, the body BO may have a structure that can be interconnected in a first direction DR1. Accordingly, the plurality of modules 210' may be added or removed according to the number of head groups 310.

[0178] In one embodiment, the plurality of tubes PP may include a first tube PI1, a second tube PI2, a third tube PI3, and a fourth tube PI4. The first tube PI1, the second tube PI2, the third tube PI3, and the fourth tube PI4 may pass through the body BO in the first direction DR1 and may be spaced apart from each other in a second direction DR2.

[0179] In one embodiment, the flow path portion FP' may be provided between at least one of the plurality of tubes PP and the inkjet module 300. The flow path portion FP' may include a first supply flow path SF1 and a second supply flow path SF2 having a structure separated from each other.

[0180] In one embodiment, the second tube PI2 may be connected to the second supply flow path SF2, and the third tube PI3 may be connected to the first supply flow path SF1.

[0181] Reference will be made later to Figure 19 describe in detail the connection piping system between the plurality of tubes PP and the flow path portion FP'.

[0182] In one embodiment, the heating portion HP may include a first heater HE1 and a second heater HE2. The first heater HE1 may pass through the body BO and be provided between the first tube PI1 and the second tube PI2. The second heater HE2 may pass through the body BO and be provided between the third tube PI3 and the fourth tube PI4.

[0183] In one embodiment, the flow controller 240 (see, for example Figure 20)A first supply flow path SF1 between at least one of the plurality of tubes PP and the inkjet module 300 can be connected. In one embodiment, the tube can be the third tube PI3. Additionally, for example, the flow controller 240 (see, for example Figure 20 )A second supply flow path SF2 between at least one of the plurality of tubes PP and the inkjet module 300 can be connected. In one embodiment, for example, the tube can be the second tube PI2. The flow controller 240 can control the flow rate of the ink IK such that a uniform amount of ink IK is supplied to each of the plurality of head groups 310.

[0184] In one embodiment, the ink transfer module 200’ can further include a thermometer 260 and a temperature controller 270.

[0185] The thermometer 260 can be disposed in the main body BO. In one embodiment, for example, the thermometer 260 can be disposed in the space between the second tube PI2 and the third tube PI3. However, the present disclosure is not limited thereto.

[0186] The thermometer 260 can measure the temperature of the main body BO and supply the measured temperature to the temperature controller 270.

[0187] The temperature controller 270 can be connected to a first heater HE1 and a second heater HE2. The temperature controller 270 can control the first heater HE1 and / or the second heater HE2 according to the measured temperature. In one embodiment, for example, when the temperature of the first heater HE1 increases, heat can be supplied to the first tube PI1 and the second tube PI2, and the flow rate of the ink IK flowing out through the second supply flow path SF2 can be faster. When the temperature of the second heater HE2 increases, heat can be supplied to the third tube PI3 and the fourth tube PI4, and the flow rate of the ink IK flowing out through the first supply flow path SF1 can be faster.

[0188] As Figure 18 shown, the plurality of modules 210’ can be supplied in an assemblable form. In one embodiment, the plurality of modules 210’ includes a first module 212’ to an nth (where n is a natural number of 2 or greater) module and connection blocks (for example, a first connection block 280 and a second connection block 290). The connection blocks will be described in detail later with reference to Figure 19 in detail.

[0189] The first module 212’ can receive the ink IK from the ink storage module 100’. The nth module can be the farthest from the first module 212’ in the first direction DR1.

[0190] In Figure 18Among them, multiple modules 210' are described as including a first module 212', a second module 214', and a third module 216', but the present disclosure is not limited thereto. In one embodiment, the multiple modules 210' may variably correspond to the number of head groups 310. That is, the multiple modules 210' may include, for example, two or more modules.

[0191] Figures 19 to 22 For illustration Figure 18 Diagram of the ink transfer module components included in the ink transfer module.

[0192] Reference Figure 16 、 Figure 18 And Figure 19 Referring to

[0193] As described above, the first module 212' may receive ink IK from the ink storage module 100'. The third module 216' may be the farthest from the first module 212' in the first direction DR1.

[0194] In one embodiment, each of the first module 212', the second module 214', and the third module 216' may include a plurality of tubes PP.

[0195] In one embodiment, the plurality of tubes PP may include a first tube PI1, a second tube PI2, a third tube PI3, and a fourth tube PI4. The first tube PI1, the second tube PI2, the third tube PI3, and the fourth tube PI4 may pass through the main body BO in the first direction DR1 and may be spaced apart from each other in the second direction DR2.

[0196] In one embodiment, each of the first module 212', the second module 214', and the third module 216' may include a flow path portion FP'. The flow path portion FP' may be provided between at least one of the plurality of tubes PP and the ink jet module 300.

[0197] The flow path portion FP' may include a first supply flow path SF1 and a second supply flow path SF2 having a separated structure from each other. In one embodiment, the second tube PI2 may be connected to the second supply flow path SF2, and the third tube PI3 may be connected to the first supply flow path SF1.

[0198] In one embodiment, the first connection block 280 may contact one surface of the third module 216'. The first connection block 280 may include a first connection tube CPI1 and a second connection tube CPI2.

[0199] In one embodiment, the first connection pipe CPI1 may connect the first pipe PI1 and the second pipe PI2. Accordingly, the ink IK may flow from the ink storage module 100' into the first pipe PI1, and the ink IK may be supplied to the ink jet module 300 through the first connection pipe CPI1 connected to the first pipe PI1 and the second pipe PI2.

[0200] In one embodiment, the second connection pipe CPI2 may connect the third pipe PI3 and the fourth pipe PI4. Accordingly, the ink IK may flow from the ink storage module 100' into the fourth pipe PI4, and the ink IK may be supplied to the ink jet module 300 through the second connection pipe CPI2 connected to the fourth pipe PI4 and the third pipe PI3.

[0201] More specifically, in one embodiment, the first pipe PI1 of the first module 212' may include a first end EP1 and a second end EP2. The second end EP2 may be spaced apart from the first end EP1 in the first direction DR1. The first end EP1 may be connected to the ink storage module 100', and the second end EP2 may be connected to the first pipe PI1 of the second module 214'.

[0202] In one embodiment, the first pipe PI1 of the nth module may include a third end EP3 and a fourth end EP4. In one embodiment, the first pipe PI1 of the third module 216' may include a third end EP3 and a fourth end EP4. For example, the fourth end EP4 may be spaced apart from the third end EP3 in the first direction DR1. The third end EP3 may be connected to the first pipe PI1 of the (n - 1)th module. In one embodiment, the third end EP3 may be connected to the first pipe PI1 of the second module 214'. For example, the fourth end EP4 may be connected to the first connection pipe CPI1.

[0203] In one embodiment, the fourth pipe PI4 of the first module 212' may include a fifth end EP5 and a sixth end EP6. The sixth end EP6 may be spaced apart from the fifth end EP5 in the first direction DR1. The fifth end EP5 may be connected to the ink storage module 100', and the sixth end EP6 may be connected to the fourth pipe PI4 of the second module 214'.

[0204] In one embodiment, the fourth pipe PI4 of the nth module may include a seventh end EP7 and an eighth end EP8. In one embodiment, for example, the fourth pipe PI4 of the third module 216' may include a seventh end EP7 and an eighth end EP8. The eighth end EP8 may be spaced apart from the seventh end EP7 in the first direction DR1. The seventh end EP7 may be connected to the fourth pipe PI4 of the (n - 1)th module. In one embodiment, for example, the seventh end EP7 may be connected to the fourth pipe PI4 of the second module 214'. The eighth end EP8 may be connected to the second connection pipe CPI2.

[0205] In one embodiment, each of the first module 212', the second module 214', and the third module 216' may include a flow controller (e.g., Figure 20 flow controller 240 as shown in

[0206] ), which is connected to a supply flow path between at least one of the plurality of tubes PP and the inkjet module 300. In one embodiment, for example, the flow controller may be connected to the first supply flow path SF1, the second supply flow path SF2, the third supply flow path SF3, the fourth supply flow path SF4, the fifth supply flow path SF5, and the sixth supply flow path SF6. Accordingly, the flow controller 240 may control the flow rate of the ink IK such that a uniform amount of the ink IK is supplied to each of the first supply flow path SF1, the second supply flow path SF2, the third supply flow path SF3, the fourth supply flow path SF4, the fifth supply flow path SF5, and the sixth supply flow path SF6.

[0206] Referring to Figure 19 and Figure 20 , the plurality of modules 210' may include the first module 212' to the nth module. The first module 212' to the nth module may have substantially the same structure. Therefore, the following description will focus on the second module 214'.

[0207] In one embodiment, the first surface F1 of the main body BO of the first module 212' may contact the second connection block 290, and the second surface F2 may contact the second module 214'. The first surface F1 of the main body BO of the second module 214' may contact the first module 212', and the second surface F2 may contact the third module 216'. The first surface F1 of the main body BO of the third module 216' may contact the second module 214', and the second surface F2 may contact the first connection block 280.

[0208] The main body BO of the second module 214' may include a first surface F1, a second surface F2, a third surface F3, and a fourth surface F4. In one embodiment, for example, the first surface F1 and the second surface F2 may be opposite to each other in the first direction DR1. The third surface F3 and the fourth surface F4 may be opposite to each other in a direction DR3 that intersects the first direction DR1 and the second direction DR2.

[0209] In one embodiment, a second supply valve SUV2 may be disposed in a second pipe PI2, and a first supply valve SUV1 may be disposed in a third pipe PI3. In one embodiment, for example, the first supply valve SUV1 may be disposed between the main body BO and a first supply flow path SF1, between the main body BO and a third supply flow path SF3, and between the main body BO and a fifth supply flow path SF5. The second supply valve SUV2 may be disposed between the main body BO and a second supply flow path SF2, between the main body BO and a fourth supply flow path SF4, and between the main body BO and a sixth supply flow path SF6. As Figure 19 shown, the first supply valve SUV1 and the second supply valve SUV2 may be formed to protrude in a protruding direction (and / or in a direction opposite to the protruding direction).

[0210] In one embodiment, for example, the first supply flow path SF1 and the second supply flow path SF2 may be disposed before and after the main body BO, respectively. In one embodiment, for example, the first supply flow path SF1 may include a first sub-supply pipe SSF1 and a second sub-supply pipe SSF2. The second supply flow path SF2 may include a third sub-supply pipe SSF3 and a fourth sub-supply pipe SSF4.

[0211] In one embodiment, a pressure compensation block PCB may be disposed on the bottom surface of a plurality of modules (e.g., the second module 214').

[0212] As described above, a plurality of modules may be added or removed in a first direction DR1. As the plurality of modules are added, steps may occur in a second direction DR2. The pressure compensation block PCB may compensate for the steps.

[0213] Similar to that described above with reference to Figure 8 、 Figure 9 and Figure 10 In one embodiment, an alignment pin AP may be disposed on a first surface F1 of the second module 214', and an alignment hole AH may be defined in a second surface F2.

[0214] In one embodiment, the alignment pin AP may protrude from the first surface F1. The alignment hole AH may be defined at a position corresponding to the alignment pin AP in the second surface F2.

[0215] In one embodiment, the alignment hole AH may have degrees of freedom in the second direction DR2. As described above, a plurality of modules may be added or removed in the first direction DR1. As the plurality of modules are added, steps may occur in the second direction DR2.

[0216] When the size of the alignment hole AH is substantially the same as the size of the alignment pin AP, as the step is formed, the alignment pin AP may not be received in the alignment hole AH. Since the alignment hole AH is defined to have freedom in the second direction DR2, the alignment pin AP can be stably received in the alignment hole AH even when the step is formed.

[0217] In one embodiment, the sealing member SM may be disposed on the second surface F2 to surround each of the plurality of tubes PP. In one embodiment, for example, the sealing member SM may surround each of the first tube PI1, the second tube PI2, the third tube PI3, and the fourth tube PI4.

[0218] Due to the provision of the sealing member SM, leakage at the connection portions (e.g., Figure 19 the first end EP1, the second end EP2, the third end EP3, the fourth end EP4, the fifth end EP5, the sixth end EP6, the seventh end EP7, and / or the eighth end EP8) of each of the first tube PI1, the second tube PI2, the third tube PI3, and the fourth tube PI4 can be prevented.

[0219] In one embodiment, for example, the fastening groove CH may be defined in the main body BO. Accordingly, the main bodies BO may be connected to each other in the first direction DR1. In one embodiment, the main bodies BO may be fastened with, for example, bolts and nuts. However, the present disclosure is not limited thereto. The main bodies BO may be connected to each other in various ways.

[0220] Similar to that described above with reference to Figure 11 、 Figure 12 and Figure 13 , the plurality of modules 210' may be supplied in an assemblable form. In one embodiment, the plurality of modules 210' may include a first module 212' to an nth module, a first connection block 280, and a second connection block 290. n may be a natural number of 2 or greater.

[0221] In one embodiment, the first surface F1 of the first module 212' may contact the second connection block 290, and the second surface F2 may contact the second module 214'. The first surface F1 of the main body BO of the second module 214' may contact the first module 212', and the second surface F2 may contact the third module 216'. The first surface F1 of the main body BO of the nth module may contact the (n - 1)th module, and the second surface F2 may contact the first connection block 280.

[0222] As Figure 21 shown, the second connection block 290 may be connected to the inkjet module 300 (see, for example, Figure 15 ). For this purpose, a first line LI1' and a second line LI2 may be provided between the second connection block 290 and the inkjet module 300 (see, for example, Figure 15) therebetween. In one embodiment, for example, the first line LI1’ and the second line LI2 may form a third path P3’, and ink is supplied through the third path P3’ from the inkjet module 300 (see, for example, Figure 15 )

[0223] Reference Figure 22 , each of the first supply flow path SF1 and the second supply flow path SF2 may have a structure that branches to a plurality of head groups 310. In Figure 22 , one of the plurality of head groups 310 is shown as including a first head 312, a second head 314, and a third head 316, but the present disclosure is not limited thereto. In one embodiment, for example, the number of branches of the first supply flow path SF1 and the second supply flow path SF2 may vary according to the number of heads included in the plurality of head groups 310.

[0224] Similar to that described above with reference to Figure 7 and Figure 14 , the flow controller 240 may be provided in the first supply flow path SF1 and the second supply flow path SF2. In addition, a flow meter may be further provided when needed.

[0225] The inkjet printer in the embodiments of the present disclosure may be applied to a process of manufacturing a display device included in a computer (e.g., a laptop computer or a smart tablet computer), a mobile phone, a smartphone, a portable multimedia player (“PMP”), a personal digital assistant (“PDA”), an MP3 player, etc.

[0226] The embodiments of the present disclosure should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the concept of the present invention to those skilled in the art. Although the present invention has been specifically shown and described with reference to the embodiments of the present invention, those of ordinary skill in the art will understand that various changes in form and detail may be made therein without departing from the spirit or scope of the present invention as defined by the claims.

Claims

1. An inkjet printer, characterized in that Comprising: An ink jetting module including a plurality of head groups, each of the plurality of head groups including a plurality of heads for jetting ink; An ink storage module for storing the ink; And A plurality of modules for receiving the ink from the ink storage module and delivering the ink to each of the plurality of head groups, Each of the plurality of modules including: A main body having a structure that can be interconnected in a first direction and including a first surface and a second surface opposite to the first surface in the first direction; A plurality of tubes passing through the main body in the first direction and separated from each other in a second direction intersecting the first direction; A flow path portion provided between at least one of the plurality of tubes and the ink jetting module; and A flow rate controller connected to the flow path portion.

2. The inkjet printer according to claim 1, characterized in that, The flow path portion includes a supply flow path and a recovery flow path separated from each other, and the flow rate controller is connected to the supply flow path between at least one of the plurality of tubes and the ink jetting module.

3. The inkjet printer according to claim 2, wherein: The plurality of modules include a first module to an nth module and a connection block, the first module receiving the ink from the ink storage module, the nth module being the farthest from the first module in the first direction, where n is a natural number of 2 or greater, The first surface of the main body of the nth module contacts the (n - 1)th module, The second surface of the main body of the nth module contacts the connection block, The plurality of tubes include a first tube, a second tube connected to the recovery flow path, a third tube connected to the supply flow path, and a fourth tube, and The connection block includes a first connecting tube connecting the first tube and the second tube and a second connecting tube connecting the third tube and the fourth tube.

4. The inkjet printer according to claim 1, characterized in that, The flow path portion includes a first supply flow path and a second supply flow path separated from each other, and the flow rate controller is connected to at least one of the first supply flow path and the second supply flow path between at least one of the plurality of tubes and the ink jetting module.

5. The inkjet printer according to claim 4, wherein: The plurality of modules include a first module to an nth module and a connection block, the first module receiving the ink from the ink storage module, the nth module being the farthest from the first module in the first direction, where n is a natural number of 2 or greater, The first surface of the main body of the nth module contacts the (n - 1)th module, The second surface of the main body of the nth module contacts the connection block, The plurality of tubes include a first tube, a second tube connected to the second supply flow path, a third tube connected to the first supply flow path, and a fourth tube, and The connection block includes a first connecting tube connecting the first tube and the second tube and a second connecting tube connecting the third tube and the fourth tube.

6. The inkjet printer according to claim 3 or 5, wherein: The first tube of the first module includes a first end and a second end spaced from the first end in the first direction, The first end is connected to the ink storage module, The second end is connected to the first tube of the second module, The first tube of the nth module includes a third end and a fourth end spaced from the third end in the first direction, The third end is connected to the first tube of the (n - 1)th module, The fourth end is connected to the first connecting tube, The fourth tube of the first module includes a fifth end and a sixth end spaced from the fifth end in the first direction, The fifth end is connected to the ink storage module, The sixth end is connected to the fourth tube of the second module, The fourth tube of the nth module includes a seventh end and an eighth end spaced from the seventh end in the first direction, The seventh end is connected to the fourth tube of the (n - 1)th module, and The eighth end is connected to the second connecting tube.

7. The inkjet printer according to claim 3 or 5, characterized in that, Further comprising: A first heater passing through the main body and disposed between the first tube and the second tube; A second heater passing through the main body and disposed between the third tube and the fourth tube; A thermometer disposed in the main body; And A temperature controller connected to the first heater and the second heater.

8. The inkjet printer according to claim 1, characterized in that, The plurality of modules further comprises: A pressure compensation block disposed on the bottom surface of the plurality of modules, and Each of the plurality of modules further comprises: An alignment pin protruding from the first surface; An alignment hole defined at a position corresponding to the alignment pin in the second surface; and A sealing member around each of the plurality of tubes on the second surface, Wherein the alignment hole has a degree of freedom in the second direction.

9. The inkjet printer according to claim 2, wherein: The ink storage module includes an ink cartridge, a first reservoir, and a second reservoir, and Wherein the ink flows into: A first path for supplying the ink from the ink cartridge to the first reservoir; A second path for circulating the ink between the first reservoir and the second reservoir; A third path for recycling the ink from the second reservoir to the ink cartridge; And A fourth path for circulating the ink between the plurality of modules and the second reservoir.

10. The inkjet printer according to claim 4, wherein: The ink storage module includes an ink cartridge, a first reservoir, and a second reservoir, and Wherein the ink flows into: A first path for supplying the ink from the ink cartridge to the first reservoir; A second path for supplying the ink from the first reservoir to the second reservoir; and a third path for supplying the ink from the second reservoir to the plurality of modules.

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