KR101334883B1 - Recycling apparatus for printer head - Google Patents

Abstract

There is provided a printer head regenerating device in which cleaning and ink filling are effective. The print head reproducing apparatus has a base frame having a rotating shaft coupled in a horizontal direction, a body coupled to the rotating shaft, at least a portion of the body is open, a nozzle through which ink is injected, and an injection hole through which ink is injected, and ink is formed therein. A receiving portion in which a print head having a storage space to be stored is detachably inserted, a first connecting portion which is located on one side of the receiving portion, is in close contact with the nozzle, and connects the nozzle and a first flow path extending out of the body; Located on the other side of the portion and in close contact with the inlet, and includes a second connecting portion for connecting the inlet and the second flow path extending to the outside of the body, is rotated about the rotation axis, so that the nozzle is directed downward or upward A print head holder for reversing the alignment state, a suction pump connected to the first flow path to suck the fluid inside the print head, and a second flow path; It is determined and a supply tank for supplying the cleaning fluid or the ink into the print head.

Description

Recycling apparatus for printer head

The present invention relates to a reproducing apparatus of a print head, and more particularly, to a reproducing apparatus of a print head, in which a washing operation and a filling operation of an ink are effectively performed.

The printer can be broadly classified into a laser printer which prints using toner and an inkjet printer which prints using printing ink. Laser printers print by attaching powdered toner to printing paper by applying heat or pressure, while inkjet printers print by spraying liquid ink directly onto printing paper.

The inkjet printer is equipped with a printer head provided with a nozzle for ejecting ink, an injection hole for injecting ink, and a storage space for storing ink. The print head performs printing by ejecting ink through a nozzle near the surface of the printing paper.

At this time, the ink is supplied from an external tank to move through the inlet, the storage space, and the nozzles in order. During the movement, the ink may remain in the nozzle to solidify or remain in the storage space and may precipitate. Reacts with the mixed impurities to form debris. If the print head is used for a long time, these ink debris may stick to the inside of the print head or the nozzle and the inlet portion, which may cause a problem that the print quality is significantly degraded.

In order to solve this problem conventionally, regeneration apparatuses of the print head have been developed for cleaning and reusing the print head. However, existing regeneration equipment is usually formed to spray the cleaning liquid from the outside of the print head toward the nozzle portion or to physically remove the ink residues stuck to the nozzle portion, and the cleaning effect is concentrated only on the nozzle portion of the print head. There was a problem that it is difficult to effectively clean the ink storage space or the injection hole inside the printer head.

In addition, in some cases, a suction pump was used to discharge remaining ink or inject new ink into the print head. However, the suction pump used in the past is designed to pass through a chamber in which the sucked ink is kept at a low pressure. There has been a hassle to repeatedly discharge the fluid contained in such a chamber, accordingly, there was a problem that the cleaning operation of the print head and the filling operation for filling the ink is difficult to be made continuously.

The technical problem to be solved by the present invention is to provide a printer head regeneration device that can be effectively performed at the same time the cleaning operation of the print head and the filling operation of the ink.

The technical objects of the present invention are not limited to the technical matters mentioned above, and other technical subjects not mentioned can be clearly understood by those skilled in the art from the following description.

The printer head reproducing apparatus according to the present invention includes a base frame having a rotating shaft coupled in a horizontal direction, a body coupled to the rotating shaft, at least a portion of the body being open, a nozzle to which ink is injected, and the ink being injected therein. A printer head having an injection hole and having a storage space therein for storing the ink therein; and a receptacle inserted in a detachable manner, positioned in one side of the container, in close contact with the nozzle, and extending out of the nozzle and the body. A first connection part connecting a first flow path, and a second connection part located on the other side of the receiving part to be in close contact with the injection hole and connecting the injection path and a second flow path extending out of the body, wherein the rotation shaft Rotated about the printer to reverse the alignment of the print head so that the nozzle is directed downward or upward It is the de-holder, connected to the first flow path connected to the second flow path and the suction pump, to suck the fluid inside the print head comprises a feed tank for supplying the cleaning fluid or the ink into the print head.

The suction pump may include a cylindrical guide member having at least one side open, a pressure roller rotatably mounted inside the guide member, and moving along an inner surface of the guide member, and one side having the first flow path. And a suction tube connected to and inserted between the pressure roller and the guide member, wherein the pressure roller rotates while pressing the suction tube to generate a negative pressure inside the suction tube to suck the fluid inside the first flow path. can do.

The first connection part may include a plate-shaped support part formed on a bottom surface of the accommodating part, and a contact part protruding from the support part in a stepped shape toward the nozzle, and close contact with the nozzle while sealing the nozzle.

The second connection part may include a tubular extension part extending toward the injection hole, and a flange part extending radially from an end portion of the extension part to close the injection hole while being in close contact with the injection hole.

The regeneration device may further include a shutoff valve formed between the supply tank and the second flow path to open and close the second flow path to block supply of at least one of the cleaning liquid and the ink.

 The regeneration device may further include an intake pipe connected to the second flow path, the end of which is open to the outside, and a control valve formed between the intake pipe and the second flow path to open and close the intake pipe.

The base frame may include a support protrusion protruding toward the printer head holder and in close contact with the body to support the rotated printer head holder.

The print head reproducing apparatus according to the present invention can effectively clean the nozzle, the ink inlet, and the ink storage space of the print head by changing the alignment of the print head. Can be discharged.

In addition, at the same time as the ink injection, the remaining gas inside the printer head is completely exhausted, so that ink can be injected effectively without bubbles, and the cleaning process and the ink injection process are continuously performed to conveniently complete the regeneration of the print head. It has an effect.

1 is a perspective view of a printer head reproducing apparatus according to an embodiment of the present invention.
FIG. 2 is an enlarged perspective view of the printer head holder of the playback device of FIG. 1.
3 is a cross-sectional view of the print head holder of FIG. 2 taken along line AA ′.
4A and 4B are operation diagrams for explaining the rotation of the printer head holder of FIG.
5 is an operation diagram for explaining the suction operation of the suction pump of FIG.
6 is a flowchart illustrating an example of a cleaning method and an ink filling method of a print head.
7A to 8B are views for explaining a cleaning process of the print head according to the flowchart of FIG. 6.
9A and 9B are diagrams for describing an ink filling process according to the flowchart of FIG. 6.

Brief Description of the Drawings The advantages and features of the present invention and methods of accomplishing the same will be apparent from the following detailed description of embodiments thereof taken in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the present invention is only defined by the claims. Like reference numerals refer to like elements throughout the specification.

Hereinafter, a printer head reproducing apparatus according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 9B.

1 is a perspective view of a printer head reproducing apparatus according to an embodiment of the present invention.

Referring to FIG. 1, a printer head reproducing apparatus 1 according to an embodiment of the present invention includes a base frame 400, a printer head holder 100, a suction pump 200, and a supply tank 300. .

The base frame 400 formed in a wide plate shape may accommodate the printer head holder 100 and the suction pump 200 and the supply tank 300 thereon, and the printer head holder 100 and the suction pump 200. And, the supply tank 300 may be organically disposed on the base frame 400 so that the regeneration of the print head can be easily made. The rotating shaft 410 is coupled to the base frame 400 in the horizontal direction.

The print head holder 100 serves to receive and fix the print head to be reproduced. The print head is inserted into the print head holder 100 through the receiving part 120 formed in the print head holder 100, and after insertion, the first head is positioned on one side and the other side of the receiving part 120, respectively. Close contact with the 130 and the second connecting portion 140 is fixed. The printer head holder 100 may be coupled to the rotation shaft 410 to rotate about the rotation shaft 410.

The first connecting portion 130 and the second connecting portion 140 are in close contact with the nozzle of the print head and the ink injection hole of the print head, respectively, and the first flow path 150 and the second flow path 160 extending out of the body 110. The inner space of the print head is connected to the suction pump 200 and the supply tank 300 through the. In this case, the first connecting portion 130 and the suction pump 200 are connected to each other through the first flow path 150, and the second connecting portion 140 and the supply tank 300 are connected to each other through the second flow path 160. Connected.

Accordingly, the fluid and impurities remaining in the print head may be sucked into the suction pump 200 through the first flow path 150, and at the same time, the cleaning liquid stored in the supply tank 300 may pass through the second flow path 160. While being supplied to the inside of the print head, it is possible to easily wash the inside of the print head. In addition, the supply tank 300 may selectively supply the cleaning liquid or ink, and the ink may be filled in the print head after the cleaning is completed, thereby completing the print head regeneration operation.

During this print head regeneration operation, the cleaning liquid or ink passing through the print head is introduced through the second flow path 160 and the injection port, and flows out through the nozzle and the first flow path 150.

The print head holder 100 may be rotated about the rotating shaft 410 to change the alignment state of the print head, and the position of the nozzle may also be changed. Through this, the print head reproducing apparatus 1 may effectively wash the remaining fluid or impurities in the print head and then quickly discharge the ink, and also, an ink filling process for injecting ink without bubbles into the inside of the print head. You can proceed. The regeneration process of the print head including the washing process and the ink filling process will be described later in more detail.

Hereinafter, the printer head holder will be described in more detail with reference to FIGS. 2 to 4B together with FIG. 1.

2 is an enlarged perspective view of the printer head holder of the reproducing apparatus of FIG. 1, FIG. 3 is a cross-sectional view of the printer head holder of FIG. 2 taken along line AA ′, and FIGS. 4A and 4B are views of the printer head holder of FIG. 2. This is an operation diagram for explaining the rotation.

The printer head holder 100 is positioned on one side of the body 110 coupled to the rotating shaft 410, a receiving part 120 formed as a part of the body 110 in an open shape, and the receiving part 120. It includes a first connecting portion 130 and a second connecting portion 140 located on the other side of the receiving portion 120.

The body 110 may be formed in a three-dimensional shape as shown in FIGS. 1 and 2. The shape of the body 110 is not standardized, and may be modified into various shapes corresponding to the shape of the accommodating part 120 or the shape of the printer head inserted into the accommodating part 120.

The body 110 is hinged to the rotating shaft 410 placed in the horizontal direction, so that the entire print head holder 100 may rotate in one direction or the opposite direction about the rotating shaft 410. In order to easily rotate the printer head holder 100, the rotation shaft 410 may be coupled to an end portion of the support bar 411 protruding upward of the base frame 400.

The receiving part 120 opens a part of the body 110 to form a receiving space in which the print head can be accommodated. The shape of the accommodating part 120 may also be modified into various different shapes according to the shape of the printer head.

2 and 3, the printer head H may be formed in a rectangular block shape, and has a nozzle H₁ through which ink is injected and an injection hole H2 through which ink is injected. A storage space (see H₃ of FIGS. 7A to 9B) is formed in the printer head H, and the storage space H₃ is integrally formed with the nozzle H₁ and the injection hole H₂. Formed and connected to each other.

The printer head H is inserted into the accommodating part 120 with the nozzle H 'and the injection hole H2 facing the accommodating part 120. An outer wall 121 extending in the vertical direction is formed on the outer side of the accommodating part 120, and an inner wall 122 is formed on the inner side of the accommodating part 120 to divide the accommodating space of the accommodating part 120 into at least one. . The printer head H may be fixed in a state of being in close contact between the outer wall 121 and the inner wall 122 after being inserted into the receiving part 120.

One side of the accommodating part 120 has a first connection part 130 in close contact with the nozzle H ', and a second connection part 140 in close contact with the injection hole H2 is formed in the other side.

The first connecting portion 130 is located on the opposite side of the direction in which the nozzle H 'is facing and is in close contact with the nozzle H'. As shown in the drawing, the first connecting portion 130 corresponds to a plate-shaped support portion 131 formed on the bottom surface of the receiving portion 120 and a nozzle H 'in the support portion 131. It may be made of a close contact portion 132 protruding toward. The close contact portion 132 may have a reduced width in a stepped shape to directly contact the surface of the nozzle H ', or may be inserted into the nozzle H'. As a result, the nozzle H 'is sealed from the outside while being connected to the first connecting portion 130.

The first flow path 150 is connected below the support part 131. The first flow path 150 may be a tube or a tube formed of a flexible material, and is connected to the nozzle H 'via the first connection part 130. Therefore, the fluid existing inside the printer head H may pass through the nozzle H ′ and the first connection part 130 in sequence, and then move to the first flow path 150.

The second connecting portion 140 is located inside the protrusion 123 protruding to the side of the receiving portion 120. The protrusion 123 is formed at a position corresponding to the injection hole H2 of the printer head H, and serves as a support for supporting the second connection part 140. The protrusion 123 is also intended to surround and protect the periphery of the second connecting portion 140.

The second connecting portion 140 may include an extension part 141 extending in an empty tube shape toward the injection hole H₂ and a flange part 142 extending radially from an end of the extension part 141. . The flange portion 142 may be in close contact with the inlet hole H₂, or when the inlet hole H₂ is large, the flange portion 142 may be inserted into the inlet hole H₂, whereby the inlet hole H₂ is connected to the second connection part 140. ) Is sealed from the outside while being connected to the

The second connection part 140 may include a pocket-shaped connection part 143 formed on one side of the extension part 141. The connection part 143 may be integrally formed with the extension part 141, and the second connection part 140 is connected to the second flow path 160 through the connection part 143. Like the first flow path 150, the second flow path 160 may be a tube or a tube formed of a flexible material.

4A and 4B, the print head holder 100 having such a feature may rotate about the rotation shaft 410 as described above.

First, referring to FIG. 4A, the print head holder 100 may be primarily aligned with the print head H inserted. At this time, the receiving portion (see 120 in FIGS. 1 and 3) is opened upward, and the nozzle (see H ′ in FIG. 3) of the print head H is directed downward while being connected to the first connecting portion 130. FIG. do.

The printer head holder 100 may be supported and supported by the support protrusion 421 protruding from the base frame 400 toward the printer head holder 100, and the rotating shaft 410 coupled to the support bar 411. It can rotate in one direction about.

Subsequently, referring to FIG. 4B, the printer head holder 100 which has been rotated is maintained while being supported by another support protrusion 420. In this case, the heights of the support protrusions 420 and 421 may be formed differently, and the support protrusions 420 and 421 may support the printer head holder 100 while being in close contact with different points of the body 110.

After the rotation, the alignment of the print head H inserted into the print head holder 100 is reversed, and the position of the nozzle H 'and the first connection portion 130 is changed upward. That is, the inversion of the alignment state means that the position of the print head H changes according to the rotation of the print head holder 100, and thus the direction in which the nozzle H ′ is directed changes.

1 and 5, the remaining components of the printhead reproducing apparatus will be described in more detail.

Referring to FIG. 1, the suction pump 200 includes a pressure roller 220 rotatably mounted inside the cylindrical guide member 210 and the guide member 210, and the pressure roller 220 and the guide member 210. Including a suction tube 230 is inserted between.

Guide member 210 is formed in a cylindrical shape, at least one side may be open to receive the suction tube (230). The suction tube 230 received inwardly of the guide member 210 is refracted along the guide member 210. The guide member 210 may be formed in a wheel shape other than a cylindrical shape, or in another shape having a smooth refractive surface.

The pressure roller 220 rotates inside the guide member 210 to move along the inner surface of the guide member 210. Therefore, the suction tube 230 inserted into the guide member 210 may be in close contact with the pressing roller 220 and may be deformed. The pressure roller 220 may include a drive shaft 222 mounted at the center of the guide member 210 and a bracket 221 fixed to the drive shaft 222, and the pressure roller 220 may have an end portion of the bracket 221. May be coupled to the suction tube 230. The drive shaft 222 may rotate by a belt 250 that transmits the rotational force of the motor 240 and the motor 240 coupled to one side of the base frame 400.

When the drive shaft 222 is rotated, the pressure roller 220 is moved along the inner surface of the guide member 210, the guide member 210 as shown in FIG. The pressure roller 220 is continuously in close contact with the suction tube 230 to pressurize the suction tube 230, the suction tube 230 generates a negative pressure periodically to suck the fluid each time the pressure roller 220 moves. can do. At this time, the fluid sucked into the suction tube 230 is moved along the rotation direction of the pressure roller 220.

Therefore, the suction tube 230 connected to the first flow path 150 may suck the fluid inside the first flow path 150, and the sucked fluid passes through the suction tube 230, and then the suction tube 230. It may be discharged to the outside through the outlet 231 connected to the end of the. The suction tube 230 may be elastically deformed according to the movement of the pressure roller 220, and one or more may be connected in parallel to increase the suction force.

One or more feed tanks 300 may be formed independently of each other to store the washing liquid or ink, respectively. One or more supply tanks 300 may be added according to the type or color of ink.

A blocking valve 310 may be formed between the supply tank 300 and the second flow path 160 to open and close the second flow path 160 to block the supply of the cleaning liquid or ink. One or more shutoff valves 310 may be formed according to the number of supply tanks 300. Accordingly, only one of the cleaning liquid and the ink may be selectively supplied with the blocking valve 310 locked, and the supply of the cleaning liquid and the ink may be stopped when the blocking valve 310 is locked.

On the other hand, one side of the second flow path 160 may be connected to the intake pipe 170 whose end is opened to the outside. A control valve 161 is formed between the intake pipe 170 and the second flow path 160 to open and close the intake pipe 170. Therefore, when the control valve 161 is opened, the second flow path 160 can suck outside air, not cleaning liquid or ink, from the intake pipe 170. At this time, all of the above-mentioned shutoff valves 310 are locked, and the inflow of the washing liquid and the ink is stopped. On the contrary, when the control valve 161 is locked, the second flow path 160 can suck the cleaning liquid or ink. By using the opening and closing action of the control valve 161 and the shut-off valve 310 it can be more convenient to operate the printer head regeneration device (1).

Hereinafter, the printhead cleaning process and the ink filling process of the printhead reproducing apparatus will be described in detail with reference to FIGS. 6 to 9B together with FIG. 1.

6 is a flowchart illustrating an example of a cleaning method and an ink filling method of the print head, and FIGS. 7A to 8B are views for explaining a cleaning process of the print head according to the flowchart of FIG. 6, and FIGS. 9A and 9B. 6 is a view for explaining a process of filling the ink according to the flowchart of FIG.

The print head reproducing apparatus 1 may complete the print head regenerating operation by performing the cleaning operation and the ink filling operation in the order as shown in FIG. 6.

First, the print head H is mounted on the print head holder 100 (S100). The printer head (see H in FIGS. 7A-9B) may be mounted on the printer head holder 100 after being separated from the printer in use. The nozzle of the attached print head (see H ′ in FIGS. 7A to 9B) is connected to the first connecting portion 130, and the injection port (see H 2 in FIGS. 7A to 9B) is connected to the second connecting portion 140.

In the next step, the printer head holder 100 is rotated to reverse the alignment of the print head H (S110). As shown in Figs. 7A and 7B, the nozzle H 'is directed upward in the printer head H in which the alignment state is reversed.

In this state, the suction pump 200 is operated to suck residual ink and residues S left in the printer head (S120). At this time, the cleaning liquid (L) is supplied to the printer head (H) by the suction force of the suction pump 200 to proceed with the cleaning operation.

Since the nozzle H₁ is directed upward, the cleaning liquid L may pass through the nozzle H₁ only after the storage space H₃ of the ink is filled through the injection hole H2 from below.

Therefore, as shown in FIG. 7B, the washing solution L is continuously maintained in the storage space H₃, and thus, the storage space H₃ and the injection holes H₂ and nozzles H₁ connected thereto may be effectively washed. The cleaning liquid (L) may be a dedicated cleaning agent that effectively reacts to the printing ink or hot water heated to a predetermined temperature or more. When the cleaning liquid (L) is hot water, the cleaning liquid (L) is the ink residue solidified inside the storage space (H₃). (S) can be dissolved more effectively and separated from storage (H₃). At this time, the temperature of the washing liquid (L) is preferably formed around 60 ℃. As the time for which the washing liquid L is maintained in the storage space H 3 increases, the washing effect may be increased. The debris S separated from the inner wall of the storage space H₃ is actively discharged to the outside of the print head H while passing through the nozzle H₁ along with the washing liquid L.

When the washing operation is primarily completed, the printer head holder 100 is rotated in the reverse direction to be aligned again to its original position (S130). At this time, the alignment of the print head H is reversed again so that the nozzle H 'is directed downward. In this state, the suction pump 200 is operated again, but all of the above-described shutoff valves 310 are closed, and the control valve 161 is opened, thereby introducing outside air into the printer head H. (S140).

As illustrated in FIGS. 8A and 8B, the outside air introduced into the printer head H may purge the remaining cleaning liquid L inside the printer head H. At this time, the outside air is introduced through the injection hole (H₂) located in a relatively high position to push out the washing liquid (L), the washing liquid (L) is easily discharged through the nozzle (H ₁) directed downward. This purge action may also last for a certain time, through which the inside of the print head (H) can be cleaned.

When the purge operation ends, the washing operation ends. This cleaning operation may be repeated several times according to the user's operation.

When the cleaning operation is completed, the alignment state of the print head (H) is reversed again (S150). At this time, the nozzle H 'is directed upward again. In this state, when the suction pump 200 is operated again and the shutoff valve 310 is supplied to supply ink, ink is injected into the printer head H (S160).

As shown in FIGS. 9A and 9B, ink I is also sequentially injected from the lower side of the storage space H 3, and at the same time, air in the storage space H 3 is sequentially discharged through the nozzle H ′. Therefore, as shown in FIG. 9B, when the ink I is injected until partially discharged to the outside of the nozzle H ', the inside of the storage space H 3 may be filled with only the ink I without bubbles. Using this method, the ink I can be injected into the print head H without bubbles.

When the injection of the ink is finished, the printer head holder 100 is rotated back to its original position and the printer head H is separated, and the washing and filling operations are completed. By using the cleaning process and the ink injection process as described above, the print head reproducing apparatus 1 can effectively perform the print head regenerating operation.

Although embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features thereof. I can understand that. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

1: print head regeneration device 100: print head holder
110: body 120: receiving portion
121: outer wall 122: inner wall
123: protrusion 130: first connecting portion
131: support portion 132: close contact
140: second connection portion 141: extension portion
142: flange portion 143: connecting portion
150: first euro 160: second euro
161: control valve 170: intake pipe
200: suction pump 210: guide member
220: pressure roller 221: bracket
222: drive shaft 230: suction tube
231: outlet 240: motor
250: belt 300: supply tank
310: shut-off valve 400: base frame
410: axis of rotation 411: support bar
420, 421: retaining protrusion
H: Print head H₁: Nozzle
H₂: Inlet H₃: Storage
S: residue L: washing liquid
I: ink

Claims (7)

A base frame having a rotating shaft coupled in a horizontal direction;
A body coupled to the rotating shaft,
At least a portion of the body is formed to be open, the receiving portion has a nozzle for ejecting the ink and the injection port for injecting the ink therein is removably inserted into the printer head having a storage space for storing the ink therein;
A first connection part disposed on one side of the accommodation part to be in close contact with the nozzle and connecting the nozzle and a first flow path extending out of the body;
Located on the other side of the receiving portion is in close contact with the inlet, and includes a second connecting portion for connecting the second passage extending to the outside of the inlet and the body,
The first connection part includes a plate-shaped support part formed on a bottom surface of the accommodation part, and a contact part protruding from the support part in a stepped form toward the nozzle to close the nozzle while being in close contact with the nozzle,
The second connecting portion is a tubular extension extending toward the injection hole,
Radially extended from the end of the extension portion, and in close contact with the injection hole and comprises a flange for sealing the injection hole,
A printer head holder rotated about the rotation axis to reverse the alignment of the print head such that the nozzle faces downward or upward;
A suction pump connected to the first flow path to suck fluid inside the printer head;
A supply tank connected to the second flow path for supplying a cleaning liquid or ink into the printer head;
A shutoff valve formed between the supply tank and the second flow path, the shutoff valve which opens and closes the second flow path to block supply of at least one of the cleaning liquid and the ink;
An air intake pipe connected to the second flow path and open at an end thereof to the outside; And
And a control valve formed between the intake pipe and the second flow path to open and close the intake pipe. The method of claim 1, wherein the suction pump,
A cylindrical guide member having at least one side open;
A pressure roller rotatably mounted inside the guide member and moving along an inner surface of the guide member;
One side is connected to the first flow path and includes a suction tube inserted between the pressure roller and the guide member,
And the pressure roller rotates while pressing the suction tube to generate a negative pressure inside the suction tube to suck the fluid inside the first flow path. delete delete delete delete The method of claim 1,
And the base frame protrudes toward the printer head holder, and includes a support protrusion that adheres to the body and supports the rotated printer head holder.

Images