TW527286B - System and method for maintaining the front of a fluid jet device in a relatively clean condition - Google Patents

Abstract

A purge/clean system and an associated method for a fluid jet apparatus, such as an ink jet printing system, having a fluid chamber including a chamber wall having an exterior surface and at least one orifice through which fluid is ejected from the fluid chamber toward a substrate involves a cavity defined adjacent the exterior surface of the chamber wall into which fluid which is, expelled from the at least one orifice during a purging or cleaning operation is permitted to flow and a vacuum pump for withdrawing fluid which is contained within the cavity. The cavity can be provided by a plurality of plate arranged in an assembled, or stacked, relationship against the exterior surface of the chamber wall and, with the aid of a fan or compressor, can be used to create a zone of above-atmospheric pressure adjacent the exterior surface of the printer head. With the zone of above-atmospheric pressure created within the cavity, any leakage of air from the region into the atmosphere effects a flow of air out of the region and thereby helps to maintain the at least one orifice in a relatively clean condition.

Description

527286 5. Description of the invention (1) [Background of the invention] The present invention relates to a liquid & maintenance liquid nozzle system, device and method. The liquid print head of interest of the present invention. In some cases, moving liquid (eg, ink) parts are used to guide the ink passage, which may include actuators. By mistake, the actuators are suitable for holes. Therefore, the ink may pass through a hole, a flow path that covers the juice, and a rotation (past). ) The juice is left on the surface of the ink and the channel and the dry material. It may be assumed that printing plugs, such as ‘fragments, cannot suck and add holes. Therefore, in order to remove the air and print the ink containing a hole in the machine through a proper drive and then circulate through the ink member ', if the empty head is a film or dirty ink, the effective head hole removal or body nozzle system collar is required. The example of the liquid nozzle 4 of the $ _ is the spray nozzle on the body nozzle element that is related to the use of the part in the proper working condition. A print head ^ 丨 from the clothes machine to the print head and contains: "Use capillary action to Move from -hole to ;; structure such as m pieces or an electrically actuated film, two or other means determined in the print head, 'bow | ink guide via -hole = element, where the thermal system provides ink as a guide source The print head provided with a liquid lumen was connected between the ink source and the print head; it went to Konghe. In the next operation of the print head of JL, the operation of the ink-guiding member is influenced by the ink. The ink is pushed under pressure and passes through; the dagger hole to the gas enters the ink flow channel through the hole (also squeezed or pushed in the field) ) Or the holes become obstructed and exist in the holes, the operation of the ink guiding member cannot reach the channel or effectively push the ink through the holes to operate the print head. The ink flow channel must be cleared and kept unobstructed. Head-cleaning operation, save

V. Description of the invention (2) (The air in the ink flow channel and any obstructions or internal obstacles in the print head holes) can be removed. 'This operation passes through the duct and the ink flow channel and uses Pu or Other steps of pressing the ink through the duct to the print head hole from the ', or head_cleaning, the top piece like this hangs out the ink like air and obstacles (eg "° Ά 孔" so the ink is pushed out from Holes along the column: head piece): = two holes of ink will contact or discern the surface, this surface is y head ^ facing downwards:-a kind of absorbent paper is hand-made from the front of the print head = ink: 'ink The clean-up and subsequent cleaning steps take two steps. However, the printing operation is troublesome and annoying, and the steps of entering and disassembling 2 need to be opened along the assembly line: make = sample, start Yield reduction. Production must be stopped, so the front end of the print head is kept very clean. New and improved systems and methods are very bad, and I hope to provide ^ -one when the ink is pushed through the print head. = Clean operation is cleared from the ink flow channel The air and obstacles are based on this, and the object of the present invention is to improve the system and method of the liquid chamber of the main device, such as mouth ink = α to remove or eliminate a liquid nozzle, ^: When printing the head, provide a new surface in a relatively clean state. = Maintain the front end of the liquid nozzle device or the outside. The secondary purpose of the present invention is to provide a decent clean and clean operation. P01-067.ptd Page 7 V. Invention Note that the system and method of (3) are provided for pre-formation, and do not have to be: the f operation can be confusingly used in the liquid mouth device. Then the technology's removal and cleaning operations are accompanied by-removal or cleansing; The system of the liquid nozzle device. The required system and the front or outside of the liquid nozzle device should be handled as appropriate automated operations. The assembly line used by the work or any system and method is another system of the present invention. : Two = the system and method. U is an efficient system = method. The construction is not complicated, and the invention is also summarized.] [This is a device with a square pedestal room, and a right outer 矣 J device. Liquid cavity ， # 中 液槽 少 —a hole ^ iι wall, the inner surface is adjacent to the liquid chamber and to the mouth shot Γ; when the operation is out, the liquid system through this hole i = ι set contains an adjacent to The recess of the cavity wall, in which the time 'liquid passes through at least one hole and flows to the recess. The method of the present invention includes providing-the step of sucking out the liquid present in the recess adjacent to the cavity wall' in Day of clearing or cleaning d: 527286 V. Description of the invention (4) The body flows out from at least one hole and flows into the recess. In another aspect of the setting method, the area of this atmospheric pressure is adjacent to the cavity wall: τ It is used to build up the _ to help maintain at least one: the two sides'. Therefore, for the purpose of air from this area, the air is concave and clean when guided by ink. The line leakage here affects the air flow from the recess to the atmosphere. Therefore, any other feature and advantage of the present invention is the flow of two gases. The detailed scope of the patent is clearly shown and defined. The attached drawings are for the benefit and advantages of the present invention to be more obvious. The following is coordinated with @Associated Technology's familiarity with this technology. The detailed description is as follows. [Detailed description of the invention] Although the present invention is allowed to be shown in the figure in various types and will be described later, it is clearly implemented. Examples. In order to limit the invention to the specific and = -instantiation shown, it is not intended to use the title of this section " Detailed Description of the Invention " to understand the needs of the ancestors, and not necessarily include or be referred to the quality of the Wu patentee (Subject mattP u — The subject matter paid by the person to limit the subject matter disclosed and the patent scope here is detailed and referred to FIG. 1, showing a specific embodiment of the main ink printing system, through f3 to 22y = The printing system of the net system 2 0 shows that it is used for unique ring production, = not to mention: 歹, for printing stamps, such as barcode 24, carton 歹 :: belt 28 moves in the direction of arrow 29. Here I say U ... This paper is printed by the dagger 'Printing System 2〇 Contains P01-067.ptd Page 9

527286 V. Description of the invention (5) The sprayer, the reactor 32, and the duct or hose 34 of the adjacent conveyor belt 28 are installed in a stationary state, and the duct or soft ink is supplied to the supplier 32 to the print head 30; here When connected, # 5 丨 directs the ink from the ink through the conduit 34 to the print head 30. Capillary ink is described by the system described in the description of the print head. The print head 3 contains the eunuch's ticket. "In order to guide the ink through and away from the print head j member, usually with the ink box 26 edge, although such ink guide The component "can be reached to the surface of the target, such as a thermal inkjet mechanism (such as the specific implementation of the use of a variety of types provided by the company, according to the commercial name) bubble sprayer by the United States Canon to print the pressure in the print head 30 Based on the influence of the ink element under the electric element, it is driven to the surface of the material, such as the edge of the carton 26, and moves the print head 30 described in the system 2. The system is inkjet printing system =: Although between = liquid ejection system Based on this, it can be used for its application. The principle of one month can be driven by various ink control members 31 that control the print head 30, and the test wires of the control loop (not shown) can be extended by 38 wires. For printing ^ 3 = System 1 is located adjacent to the printing head within 30 °. The printing system 20 also provides a sensing component that includes a thunder and sigh in the disturbing phase. Use box to move 6Γ = wheel, ^: move :: Γ is 6: add the pre-w term "... required; 52728 6

The driven stamp 24 is printed next to the carton 26. Therefore, the drive speed of the print head 30 is adjusted to match the speed at which the carton 26 moves along the conveyor belt 28. The structure and operation of a piezoelectric-based inkjet print head are well known. Phase = Detailed description of the structure and operation of a piezoelectric-based inkjet print head is not essential. However, in order to increase the value of the cleaning / cleaning system 2-5 of FIG. 1, FIG. 2 uses a segment of a prior art print head 42 to briefly describe the month. This prior art print head 42 has a main body 44 and a panel. 46 defines a hole 48 connected in front of the main body 44 and the piezoelectric element is placed in the main body 44 adjacent to the hole 48. In addition, the ink flow path 52 (or liquid chamber) is limited to the inside of the main body 44 and the ink is allowed to flow out from the ink supplier to the hole ㈣. In the printing head 42 described, the panel 46 provides ten inks; the face i of C52 and the outer surface of the panel 46 provides a leading edge of the printing head. During the operation cycle of the print head 42, due to the surface tension of the ink extending in the holes & 8, the ink does not normally flow out of the holes 48 unless there is a compressive force. However, by pressurizing and depressurizing the piezoelectric element 50 to cause the element 50 to shrink and expand, the ink is drawn into the channel 52 from the supplier and then pushed under pressure to the surface of the substrate. However, if air is present in the ink channel 52, the collection and expansion of the electric element $ 0 will not properly suck the ink into the channel 52 and thereafter push the ink through the hole 48. Because & if air is injected or sucked into the channel 52 through the hole 48 (this may be the case, if the print head 42 is pushed or hit via the carton 26 moving along the conveyor belt 28), the air must be removed from the channel 52 is cleared so that the print head 42 is fully operable. If the hole 48 is blocked by an obstacle such as debris or dust, the print head 42 is the same as

527286 Fifth, the invention description (7) becomes inoperable. More specifically, the obstruction prevents ink from passing through the holes 48 and prevents ink from flowing through the passage 52 of the print head 42 in a desired manner, driven by the piezoelectric element 50. Therefore, in the case where the hole 48 is obstructed by an obstacle such as debris ^ dust, the obstacle must be removed from the passage 52 during head-cleaning operation, such as clearing. The obvious 'removal / cleaning system 22' in combination with the printing system 20 of Fig. 1 is adapted to remove air and obstacles from the holes 48 and the passages 52 in an advantageous manner.

According to the foregoing comments and with reference to FIGS. 3 and 4, the print head of the inkjet printing system 20 of FIG. 1 includes a panel (FIG. 4), and a row of holes 60 is defined through the panel 58 and the cleaning / cleaning system 22 The system 20 incorporating FIG. 1 includes a component, designated 62, in combination with panel 58 to provide or define a collection slot 6 4 (best shown in FIG. 10) adjacent to panel 58 to collect through holes 6 and A component, indicated by 66 in FIG. 1, the ink ejected from the print head 30 and sucks the ink collected or contained in the collection tank w. In addition to the panel 58 and the exploded view best shown in FIG. 4, the print head 30 also contains an internal operating componentry (in other words, piezoelectric-based), with a 70 standard ^ The piezoelectric element of the moving ink is supported by the requirement 70 and the external covering structure ^^, 74 is firmer than the requirement 70. An internal componentry 70 includes a base π to which the panel 58 is connected.

f 'makes the panel 58 lean against the front end of the element 7Q and keep it in a fixed shape. The panel 58 has a front surface and a row of holes 60 mainly along the ridge of the panel 58. The panel 58 has a rectangular outer rear surface 78, 80. The long straight lines 6 8 of the panel 58 are extended and arranged. Specially surrounded by several (for example: all 16)

527286 V. Description of the invention (8) Screws 8 2 are connected to the base 7 6 and screws 8 2 are provided. The openings for acceptable screws are accepted along the openings raised in panel 58. It's obvious here = bottom; the thread's total counseling ... r, J 疋 Niu back to the panel 5 of the 8 angle Luo 4

The screws were removed from the panel 58 and 1 German, 妯 # 田 + β 合 々 u 1U 丨 Φ 定 m ^ 4 /, and then used in the same screw holes in the panel 58 to provide a member 62 to Base 76. The collection groove 64 can be formed by some constituent elements and structures. The collection groove 64 is formed by an appropriately shaped exhaust core (utQuts) and is formed as described above. The plate element is provided with a plurality of grooves, or ^ ^ over lying) arranged or stacked on plates 86, 88, and 90 having a relationship different from the table = 78 before the panel 58. Each of the plates 86, 88, and 90 is relatively fixed and fixed, different from the screws 82 (in other words, the aforementioned four screws 82) and the plate 58 used to connect the panel 58 to the base opening of the base 76. Accordingly, each groove providing plate 86, 88, and 90 is provided with an opening 91 for accepting a screw defined at the corner of the plate 86, 88, and 90. In order to receive the handle of the screw 82, the plate 86, 88 and 90 is arranged with an opening 84 of an acceptable screw of the panel 58, so that the plates 86, 88, and 90 closely follow the surface of the head 58 and the base 76 of the panel 58 along the panel 58. In addition, in order to accept the alignment pins of the coupling head 3, a pair of through holes 93 are provided for each of the plates 86, 88, and 90, and the promotion plates 86, 88, and 90 are assembled in a straight state. Inside the cleaning / cleaning system 22 and referring to FIGS. 5 and 6, the groove providing plates 86, 88, and 90 of the groove providing member 62 include a first plate 86 placed in a contact position (refer to the same pad 86 hereinafter) So as to substantially cover the front surface 78 of the panel 58;-a second or flowover plate 88 placed in a contact position so as to substantially cover the front surface of the gasket 86

P01-067.ptd Page 13 527286 V. Description of the invention (9) 78, and a third or cover plate 90 placed in the contact position, so as to cover the overflow (fl0wover ^ & 88) Front surface. Refer to Figure 5-9. 'Pad 86 is shaped like a platform and has a rectangular shape with a body of 5 of the face plate 58. In addition,' Pad 86 contains a pad extending The length of μ and the opposite row of through-openings 92 of notch 94, this notch 94 is in communication with the through-opening 92 (best shown in Fig. 7), so the notch 94 extends from the side of the through-opening 92. Forming a gasket The material of 86 can be any material, but stainless steel is preferred. The flowover plate 88 (best shown in Figs. 5 and 11) is also platform-like in shape, but somewhat L-shaped and contains three parallel slits The through openings 96, 98, 100 extend linearly along the length of the plate 88. The (middle) penetrations are placed between the other two (outer opening M spoon) shell openings 96 and 100 The opening 9 is placed so as to align with the through opening π92 of the pad 86, and when the 98j flow (f 1 〇w〇ver) 88 is placed on the operable pole-related pad 86 2 and the other two external through openings 96 and 100 are placed to communicate with the slot 94 of the pad = 86. Furthermore, it is best displayed In FIG. 10 (, the cover plate 90 is formed by extending from the bottom of the external through openings 96 and 100 along the 102 to the bottom of the corresponding corner adjacent to the plate 8 ... (best display) (Figures 5 and 6) Shape = image corresponding to L shape of 88 and provided with a slit-like centrally extending the center of the realong] [f lowover plate 88 and cover; teqn stain The material of U, structure and composite plate 90 is stainless steel, although

P〇l-〇67.ptd Page 14 527286 V. Description of the invention (10) Other materials can also be used. When the 86 'flowover plate 88 and the cover plate 90 are connected to 58 (with the aforementioned four screws 82 and the aforementioned cover in a horizontal relationship, & (in the af oredescr i bed overlying · rpi 〇 + *, as shown in Figures 8 and 9), the hole 60 provided inside the panel 58 and the through opening 92 of the liner 86, and the middle of the f lowover plate 88 The through openings ⑽ and the through openings 112 of the cover plate 90 are aligned. With the first # „98, and 112 side-by-side holes 60, the ink ejected through the holes 60 by the piezoelectric element installed in the print head 30 is allowed to pass through the material surface or the substrate, and Unobstructed through the groove-defining plates 86, 88, and 90. In fact, the print head 30 of the above-mentioned printing system 20 has the largest whistle; the distance at which the ink is ejected from the hole 60 with a precise shooting distance is about 0.2 5 忖. Therefore, the collective thickness of 5 pads 86 and plates 88 and 90 should preferably not exceed 〇 ′ 丨 〇 英 ^ The surface of the substrate, such as the edge of the carton 26, passes the front surface of the cover plate fairly closely; In other words, the distance from the hole 60 is within the range of 0.25 inches. The & country 102, the hole 60 also communicates with the through hole 108. When this is explained in detail or the cleaning head is operated, the through hole 108 is recessed. The groove 64 is evacuated and then the above-mentioned pad 86, the fiowover plate 88 | the cover plate 90 is connected to the panel 58 to cover the horizontal relationship as described above, and through the slot ^, the external through opening 96 and 100 and grooves 102 and 103, a pair of 9 continuous channels extend through the hole 60 and the f lowover plate 88 Between the through-hole 2 ^ Shu "and Shu. Therefore, through the external through-opening 96 and the groove 103, the hole 60 is in communication with the through-hole 106, and through the external through-opening 100 and the concave sample, it should be cleared and added.

527286 V. Description of the invention (11) '--- The through-hole 106 is introduced into the groove 641 and the flow of air is induced, and the through-opening 96 to the through-opening 100 pass through the hole 60. The induced air flow is like the inclined state of the head 30 (shown in the figure). The head 30 has placed the through-opening 96 above the through-opening m. When the cleaning or cleaning operation is performed, the ejection from the hole 60 is affected. The flow of ink through the opening 100 instead of entering the through opening 96. Therefore, due to the influence of gravity and the induced air flow from the through-opening 96 to the through-opening, ink is ejected from the hole 60 into the groove 64 of the portion provided by the through-opening 100 during the cleaning or cleaning operation. Instead of entering the recess 64 of the portion provided through the opening 96. In addition to the groove providing member 62 and referring to FIGS. 1 and 12, the aforementioned cleaning 7 cleaning system 22 also includes a component, labeled 丨 丨 4, for removing the air from the ink flow channel and the holes left in the printing head 30. An obstruction of 60, and a member, designated 116, are used to suck out the ink that is cleared from the hole 60 and exists above the front surface of the panel 58. In the aforementioned cleaning / cleaning system 22, the cleaning member 114 includes a pump 118 which is coaxially connected with the duct 34 and leads to the print head 30 '. When necessary, pressurize with the pump, a small part of the volume The ink_supply 32 passes through the conduit 34, and therefore contains any voids to which ink circulates and any obstacles in the hole 6 0 as the ink is pushed out or ejected through the hole 6 0, and the ink system is pumped 11 8 Press through the print head 30. In order to release the pressure generated by the pump in the print head 30, a return line 丨 20 (with a check valve 122 installed thereon) is connected between the print head 30 and the supply point 32, so the pump is pressurized. Some ink to the print head 30 is returned to the supply point 32 through the pump 1 1 8. ’, Driving the clean pump 11 8 to eject ink from the holes 60 of the print head 30, such as

Page 16 527286 V. Description of the invention (12) Same as air and obstruction, and the ejected ink habitually flows down the front surface 78 of the panel 5. However, the groove-providing member described above prevents the ejected ink from being exposed to the surface. This surface is intended to be kept clean. The suction member 116 is different from the through-opening 100 of the groove-providing member 62 to remove the ejection of the panel 58. The ink is prevented from accumulating on the panel μ. Still referring to FIGS. 1 and 12, the suction 116 of the aforementioned cleaning / cleaning system 22 includes a vacuum pump 124, a controller 126 installed in the vacuum pump 124, and an air circulation network 128 connected to the vacuum pump 124 and Between the through holes 108 of the overflow plate 88. The air circulation network 128 of the aforementioned cleaning / cleaning system 22 includes a first vacuum duct 130 connected between the collection storage member 132 and the inlet of the vacuum pump 124, and a second vacuum duct 1 34 connected to the collection storage member. 32 and the overflow (f10wver) plate through the hole 108 (Figure 5). To help the vacuum pump 124 be connected to the overflow plate 88, through the through hole 108, an air duct connector (05 and 6) can be threadably obtained, and a #丄 38 is inserted between the appropriate surface of the connector 136 and the overflow (f 100wover) board ^^ to seal the connector 1 36 to the overflow (f 100wover) board 88. Referring again to FIGS. 1 and 12, the collection storage member 132 includes a reservoir 142, a cover 144, and a pair of catheter segments 146 and 148 extending through the cover i 44. The two duct segments 146 and H8 are connected to the corresponding parts of the vacuum duct 130 or 134, and the cover 144, the reservoir 142 and the duct segments 146 and 148 are sealed, and the other part is used to prevent the vacuum pump 1 The vacuum generated by 24 leaks through the air circulation network 1 28. Control the operation of vacuum pump 丨 24, such as

527286 V. Description of the invention (13) The Γ pump u8 is connected to the vacuum pump 124 and the clean pump 118 by the appropriate control device placed in the control 11126.楹 Plate: When the cleaning system 22 is in operation, the vacuum pump 1 24 is started, and the air is sucked out from the groove 64 of the groove = member 62 through the air circulation network 128 to the gang = 14 ′. At the beginning of the operation of the pump 118 To extract a low volume of ink, it passes through the print head holes 60, so any air stored in the ink flow path and any obstructions existing in the holes 60 of the print head 30 are ejected through the holes ⑽. The groove 6 4 of the groove providing member 62 communicates with the atmosphere through the notch 94, and the side-by-side through-openings 92, 98, 112 and 88, 90 of the 2 pads 86, the air is allowed to be pulled from the atmosphere Then, through the groove 64 of the groove providing member 62, the work rolling flows to the vacuum pump 1 2 4 in sequence, and then passes through the air circulation network 1 2 8 through the groove 10 and the through hole 108. Therefore, during the operation of the cleaning / cleaning system 22, any ink ejected from the hole 60 and beginning to flow down the front surface 78 of the panel 58 by the effect of the vacuum pump 124, like the effect of gravity, It is sucked out through the notch and enters the external through hole 100 of the flowover plate 88. Therefore, the lining 86 is a manifold, and the overflow is allowed to flow into the exterior through the manifold. The through hole 100 of the plate 88, wherein the through hole 100 of the overflow plate 88 is from the front surface / surface 78 of the panel 58. f = the edge ink enters the through hole 1 0 0 'It is then vacuumed. 2 4 (as if under the influence of gravity) sucks downwardly toward the through hole 108, in which the ink flows through the air circulation network 2 and toward the vacuum pump 124. Therefore, the through hole 100 and the groove 102 as a liquid flow channel / 'Through " provided by the liquid flow channel, the expel led ink moving downward through the groove is provided

P01-067.ptd Page 18 527286

冓 ^. Hunted by the air circulation network 128, the ink reaches the storage tank 142 (Fig. 12) (Fig. 12), the ink falls into the inlet 148 and drops, and is collected in the storage tank 142 and reused & again (disposal). Because the ink is from the airflow network in the storage 142 ^: Zhuo: ΐ ΐ? The ink mixture is separated *, so only the air moves along the vacuum duct 130 of the person 4, in which the straight air duct 13 "mouth extends to the vacuum pump 124. T-guide" 30 by money depositor "the removal / cleaning system 22 can be started, for example, by the π start "switch attached to the controller 126, the vacuum pump 1 24 and the clean pump 118 are activated in turn. After a predetermined time period (for example, a few seconds later), where the time period has proper time control, the shutdown (Shut-off) of the vacuum pump and the clean pump 124, 118 can be affected. The ability to manually initiate operation of the cleaning / cleaning system 22 is advantageous when, or if, air becomes entrained on any ink and flows through the channel of the printhead 30, This condition can be corrected during operation or when any hole 60 becomes blocked, and ideally a clean operation is opened. On the other hand or in addition, the clearing / cleaning system 2 2 can automatically start to set when the interval is set: the hole 60 or the ink flows through the channel of the print head 30 At times, these operations are free of troubles such as air and hole-blockage. For example, when the controller 126 has an appropriate programmable componentry therein, the controller 1 2 6 can set a program to automatically start an operation cycle of the cleaning / cleaning system 22 in a combination line It can be determined when the operation is started: the print head 30 and air and hole-blockage etc.

P01-067.ptd Page 19 V. Description of the Invention (15) Annoyance 2 It is irrelevant at the beginning of the work. There are obviously more straight than that: 1 ": Vacuum pump 124-during operation, the pump 24 will be stronger during the operation of the vacuum pump 124. In order to achieve this, 5 18 \ intermittent operation rather than continuous operation in a clean /, cut, ^ 1 S eBnd), when the vacuum pump 1 24 series operating system can be selected (^ 22 operating cycle 'The control of the controller 126 does not operate, Γ, the straight line 化 i is intermittently operated, and the operating cycle of the clean pump ―. ―⑴⑴24 系 面 作 在 ―The removal / cleaning system 22 The system 22 has been described: before the air-cleaning operation is performed on the print head 30, the ink-cleaning operation is performed on the print head 30, and the ink and cleaning head operations are removed in the first two steps. -The clean water has nothing to do with it, since the panel 58 of the "30" keeps the β water of the ink cups in contact with or stains the ink of the ink to prevent ^ from spraying out of the cleaning / cleaning system 22 —The holder ’s isolated gift system includes a component, generally a region, in Figure 1 and Figure 12 of the standard 152 field. The region is located in an area adjacent to the area plate 58 that exceeds the atmospheric waste force to help The side of the print head 30 that maintains the P brushing system, or in other words, is relatively clean from the core surface of the beard, 58 ° of the holes, or Trash 'among these things ;;: such as wishing unwanted dust (-t) (depicted) system 22, creating a hole 60. The recess 64 described in the description, and the second recess provided here: 152 uses a groove Provides the recess of the component 62 and 64% of the area adjacent to the front panel 58. Its 527286 V. The area above atmospheric pressure in the invention description (16) is best created in it. Further, the creation component 1 5 2 also includes one plus The source of compressed air, labeled 169, which can be a fan or a compressor, 71, is placed on one side of the printing system 20, and further includes a duct, 70, where the duct 170 is connected Between the pressurized air source 169 and the through-hole 106, the pressurized air from the pressurized air source 169 is conducted to the portion of the recess 64 provided by the through-opening 96. In this contact, An airflow connector is? (Fig. 5 and Fig. 6) is threadably received by the mouth through hole 106, and the guide 170 is inserted into the connector 1 3 7. The connector 1 3 The 7 series is sealed to prevent the overflow plate 8 8 with a starting ring and a sealing ring 1 3 8. Therefore, in this pressure generating member 5 2 In operation, the air system from the pressurized air source 169 is introduced into the opening 64 of the recess 64 through the catheter 170 and the connector 137, so the recess depends on it; the internal pressure exceeds the atmospheric pressure. -An appropriate amount (and in fact it may be less than lpS1g), the internal pressure of the cavity 64 does not need to exceed atmospheric pressure to develop in the cavity 64-any area where the cavity gas leaks, For example, the penetrating openings 92, 98, and 112 through the array will reduce | ^ renhe ::: == dust or garbage that collects or therefore falls into the hole 60. Θthis ’pressure of the gas transmitted from the source 169 to the cavity 64 is not so large that it can be expanded with ΓΛ energy to pressurize the gas at the source 169 (as an energy-saving source for measurement). As long as the pressure generating member 152 is operated, the presence or garbage and obstruction of the print head 3 are not desired. The hole 6. The possibility is: b) Therefore, it is best to print the print operation in advance in the printing system ^,

V. Description of the Invention (17) The system is used by the cleaning / cleaning system 22 and is continuously operated. In the cleaning / cleaning system 22, the force generating member 152 can be connected to the force generating member 152㈣. During the cleaning operation and the previously mentioned pressure-sprayed ink is affected by gravity and / or:导 The air passing through the hole 60 is guided: through the opening 96 to the through-opening f-f B e. H ^ under the claw, a forced flow is collected into the grooved bud opening 100 instead of the through-opening 96. The product understands that various modifications can be used instead of π na e i 1 to replace the possible use of the aforementioned system, and it is out of the spirit of the present invention. For example, system 22 is shown and described. System 2 = Natural ... Cleaning / Cleaning System is used by A team members to include a cleaning member 114. This component enables the ink to pass through the hole 60 when the connection head is operated, a concave and suction member. 116. This suction member ιΐ6 can be used, but === except for the component 丨 丨 4. Refurbish and improve the print head stored in the inkjet printing system. The ink ejected from the panel by the conventional cleaning member of the combined printing system can be removed by the groove providing member 62 and the suction member 丨 6. Specific embodiments of selectable partial cleaning / cleaning systems 2 2 2 are shown in Figs. 13-16. In this embodiment, the vacuum and air ducts 2 | 4, 2 70 are formed by part of the print head 230 instead of separate ducts,% is shown in the embodiment of FIG. That is, the conduits 234, 270 both pass through the head 230 and provide openings 2 3 6, 2 7 2 in the panel 2 5 8. In this specific embodiment, a separate panel, labeled 288, is used to provide a groove 264. This groove 2 6 4 is used as ink retrieval and the groove 2 5 2 thus providing positive air. pressure. Usually the plate 28 8 is referred to as a maintenance module. The plate 288 contains a front surface 290, where this surface is opposite to the surface printed on it (such as a target), and a rear surface.

P01-067.ptd Page 22 527286 V. Description of the invention (18) 2 9 2 Adjacent to the print head panel 2 5 8. The plate 2 8 8 includes an opening 2 98 which is approximately a slit, through which the ink 2 9 8 is pushed onto the target. The slit-like openings 2 9 8 are related to the openings 9 2, 9 8 and 112 of the previously described embodiment. The ink system retracted from the recess 252 is formed as a vacuum channel. It is generally designated 274, and is formed on the rear surface 292 of the plate 288. Several approximately finger-like notches 2 7 6 are formed in the plate 2 8 8 and extend between the vacuum channel 2 7 4 and the slit opening 2 98. The slot 276 thus provides a flow path between the slit opening 298 and the vacuum passage 274. In the present embodiment, the channel 274 is formed laterally with the slit opening 298 and the vacuum channel 274, wherein the channel 274 is substantially parallel to the slit 298 and the slot 276. The channel 274 is connected to an end 278, where the bottom corresponds to the vacuum pump opening 236 in the panel 256. In this case, the channel 2 74 lies on the bottom 278 above the vacuum pump opening 236 of the panel 258. Therefore, through the direct communication of the opening 236 to the channel 274, the vacuum system is supplied to the plate 2 8 8 (and therefore to the slit through the slot 2 7 6. The positive compressed air recess 252 is formed as a clean or Positive compression ^ " Road 2 8 0 and also formed on the rear surface 2 9 2 of the plate 2 8 8. Just like the vacuum channel 'the clean channel 280 is substantially parallel to the slit 298, and the approximate finger shape The notch 282 extends between the slit 298 and the channel 281. The clean passage 280 is connected to an end 284, where the bottom is lying on the clean opening 2 or the compressed opening 2 formed in the panel 2 5 8 7 2. Above, the gas system is provided to the slit 2 98 (through the channel 280 through the slot 282) at a positive pressure to achieve the aforementioned cleansing function.

P01-067.ptd

Page 23 527286 V. Description of the invention (19) '-In the embodiment described, the vacuum passage 274 and the clean passage 280 are formed on the plate 288, substantially parallel to one another, at the opposite end of the slit 298. In a preferred embodiment, the vacuum channel 274 is disposed in the slit 298, and the end of the channel 278 is inclined or angled downward with respect to the main part of the channel 274. In this situation, when the ink is sucked out from the vicinity of the slit 2 98, and it is discharged downward by the force of gravity, it faces the vacuum opening 2 3 6 in the panel 2 5 8. In contrast, the clean passage 28 is located below the slit 298 and the clean air flow enters the slit 298 upward. The end of the clean passage 284 is generally formed in a line with the main part of the passage 280.

In the present embodiment, the thickness of the plate 288 is about 0.010 inches (about 10 mils), and the channels 274, 280 and the notches 276, 282 are formed by acid etching. The acid etched region has a depth of about 5 mils. It has been found that the thickness of the plate 288 and the depth of acid etching provide the plate 288 with sufficient rigidity and sufficient circulation possibilities in the channels 274, 280 and the notches 276, 282 to realize the vacuum and clean function for the maintenance module. For other depths, those who are familiar with this technique will use the methods and methods (manner) to form the channel and the groove, but will not change the purpose and spirit of this creation.

Another embodiment of another maintenance module is configured to print head 230, ' overlay panel 258. In the current implementation, the clip portion 238 extends rearwardly from the plate 288, and is generally there there. The clip 238 is pushed 0ver, and an engagement ^ 260 of the panel 258 is fastened by a snap-fit to secure the maintenance module board 288. This arrangement reduces or eliminates the need for screws or buttons to secure the maintenance module board 288 to the print head 2 3 0. therefore,

527286, invention description (20) is fixed to the print head panel 2 5 8 by a simple friction or buckle, and the maintenance module board 288 is held in place. The fastening device allows two or more other used fasteners or screws, openings' for use in providing a vacuum in the print head panel 2 5 8 and the clean opening 23 6, 2 72. Therefore, the print head 23 () can be positioned so that the internal bearing duct 2 3 4, 2 70 has a small impact on the entire size of the print head 2 3 ο. In addition, the snap-in fixture also allows the board 288 to be easily aligned to cover the panel 258. This arrangement is necessary to ensure that the ejected ink directly passes through the slit opening 2 98 on the plate and reaches the target material when re-arranging. * In addition, it was found that during operation, contaminants can be inadvertently coated on the maintenance panel 288. For example, when operating on a packaging line, such as a boxing or crate operation, 'where—adhesive is applied to the child or crate', a ribbon can be removed in the Board 288 before Table 290. Those skilled in the art recognize that in order to maintain proper operation of the print head, this stickiness must be removed so that it will not be on surface 290 of g: 288. 4 ^ A maintenance module 288 according to the present invention may include a coating or a layer of low friction material in beans, as shown in FIG. 16, /, where f is not shown. Is the material polymer fluoride? 11101 '(^ 〇1711161', such as TEFL0NR) or its analog. This material quickly promotes the clearing of the previous surface 290, and the result (in the event) is due to ^ ^ J Tian Yu, for example μ's ribbon and its analogue 'The plate 2 8 8 becomes dirty or one, one, nine or nine ^ his quick cleaning, those skilled in this art will recognize low dust, eighty-eight materials, and not

527286 V. Description of Invention (21) will change the purpose and spirit of this creation. From the above, we know that most of the amendments and changes can be realized without departing from the original purpose spirit and innovative ideas of this creation. It should be understood that the specific embodiments shown are not intended or meant to limit the invention; the disclosed are intended to include the scope of the appended patent and all modifications will fall within the scope of the patent.

P01-067.ptd Page 26 527286 Brief description of the drawings [Simplified illustration of the drawings] Fig. 1 is a perspective view of an inkjet printing system according to an embodiment of the cleaning / cleaning system of the present invention, · FIG. 2 is a longitudinal cross-sectional view of a fragmented print head of the prior art, and an embodiment of the print head configuration system is arranged adjacent to the fixed one; FIG. 3 is a drawing 1. A perspective view of the print head of the printing system. FIG. 1 shows a cavity-providing assembly at the connection of the cleaning / cleaning system. FIG. 4 is an exploded perspective view of the print head of FIG. 3. 5 is a schematic diagram showing the decomposition of the cavity-proughing assembly provided in FIG. 3; FIG. 6 is a schematic diagram showing the combination of the cavity-proxyviding assembly in FIG. 3; 囷 is a groove A schematic diagram of a fragment of a gasket for a length- 1 cavity-providing assembly is indicated by circles 7-7 in FIG. 5, but FIG. 7 is an enlarged view; FIG. 8 is a longitudinal sectional view of the fragment assembly of FIG. 6. From Figure 6 along the lines 8-8; Figure 9 series / for the cross-sectional view taken from Figure 8 is along the line 9-9; Figure 10 is a cross-sectional view taken from Figure 9 along the line 10-1 0; Figure 11 is the accessory overflow plate (f 1 〇w 〇verp 1 ate) of Figure 6 ) The schematic diagram can also be seen in Figure 5; Figure 12 is a schematic illustration of the schematic diagram of the cleaning / cleaning system

P01-067.ptd Page 27 527286 The diagram briefly illustrates the drawing, withdrawing, and pressure generating components; Figure 13 is a three-dimensional perspective view of the print head, similar to Figure *, illustrating partial removal / cleaning An alternative embodiment of the system; Fig. 14 is a back view of the supporting board of Fig. 13 showing the acid-etched portion of the board; Fig. 15 shows the printing head of Fig. 16 as the identified area of Fig. 14 region), an etched pattern of the board; is a front perspective view of the board of FIG. 14, showing the mounting clips to which the board is fixed. Not illustrated 20 Printing system 24 Bar code 28 Conveyor belt 29 Arrow 31 Ink guide member 32 Ink supplier 36 Control box 38 Electric wire 42 Print head 44 Body 48 孑 L hole 50 Piezo element 58 Panel 60 Hole 64 Collection groove 66 Member 70 Operating elements 72 External covering members 78 such as surface 80 rear surface 84 openings 86, 88, 90 plates 92 through openings 93 through holes 96, 98, 100 through openings 102, 103 t 26 carton 30 inkjet print head 34 conduit Or hose 40 electric eye 4 6 panel 52 ink flow path 62 member 68 straight line 6 base 8 2 screw 91 opening 9 4 slot u slot recess

527286

The drawing briefly explains I 0 6 5 1 〇8 through-hole II 2 through-opening 1 1 4, 11 6 component 1 1 8 pump 120 return line 122 inspection valve 124 vacuum pump, 12 6 controller 12 8 air circulation network Circuit / 130 first vacuum duct 132 collection storage member 134 second vacuum duct 136 connector 137 airflow connector 138 seal ring 142 reservoir 144 cover 146, 148 duct segment 152 member ° 1 6 9 source of pressurized air 1 7 〇 duct 1 7 1 Compressor 222 Cleaning / cleaning system ^ 230 Print head 234, 270 Vacuum and air duct 2 5 8 Panel 276, 282 Slots 236, 272 Opening 252 Groove 264 Groove 274 Vacuum channel 278 Bottom 280 channel 2 8 4 Clean channel end 2 9 2 Rear surface 288 Panel 290 Front surface 298 Opening

P01-067.ptd Page 29

Claims (1)

527286 6. Scope of patent application 1. A device for removing air, surface obstacles or internal obstacles from a liquid nozzle device during a cleaning or cleaning operation; the liquid nozzle device has a hole to which liquid can be borrowed from the liquid The nozzle device ejects through the hole during the ejecting operation. The liquid nozzle device has a vacuum channel and a purge channel formed therein. The device includes: a thin plate defines a channel therein, and the thin plate device covers a part of the The liquid nozzle device covers the holes of the liquid nozzle device with a thin plate channel. The thin plate has a vacuum channel and a purification channel, a part of the vacuum channel covers the vacuum channel of the liquid nozzle device and a part of the purification channel covers. On the purification channel of the liquid nozzle device, each vacuum channel and purification channel system is in fluid communication with the channel of the thin plate. 2. The device according to the scope of patent application 1, wherein the channel in the thin plate is a thin slit. 3. The device according to the scope of patent application 2, in which the vacuum channel and the purification channel are elongated channels, which usually extend parallel to the elongated slits. 4. The device according to the scope of patent application 3, wherein the vacuum channel and the purification channel are arranged on opposite sides of the elongated slit. 5. The device according to the scope of patent application 4, wherein the vacuum channel and the purification channel include a plurality of slots extending between a different channel and a slit. P01-067.ptd Page 30 527286 6. Scope of patent application 6. According to the scope of patent application 5, the notches usually extend transversely between their own channel and the elongated slit. 7. The device according to the scope of patent application 1, wherein the thin plate defines a front end and a rear end, the rear end is close to the inkjet device and the front end has a low-friction coating thereon. 8. The device according to the scope of patent application 1, wherein the thin plate is a unique and single thin plate. 9. The device according to the scope of patent application 1, wherein the thin plate is a collection of multiple adjacent plates. r— 1 ο. A liquid nozzle device for ejecting liquid to a target system comprising: a body having at least one hole, and the liquid is ejected through the hole by the liquid nozzle device during the ejecting operation; a panel is supported by the body, and The panel has a hole therein, and the liquid is ejected from the hole. The panel further includes a vacuum channel and a purification channel formed therein; a vacuum source is operatively connected to the vacuum channel; a compressed air source is operatively connected to Purification channel; and a cover plate defines a channel device therein and covers a part of the liquid nozzle device, and the cover plate channel is covered on the hole of the panel, the cover plate has a vacuum channel and a purification channel formed therein, a Partial vacuum cover P01-067.ptd Page 31 527286 6. The scope of patent application is on the vacuum channel of the panel and a part of the purification channel is covered on the purification channel of the panel. Each vacuum channel and purification channel system and the channel of the thin plate flow. In communication, the vacuum channel and the purification channel are used by the device to cooperate with the vacuum source and the compressed air source to remove air, surface obstacles or internal obstacles from a liquid nozzle device during a cleaning or cleaning operation. P01-067.ptd Page 32