WO2015174535A1 - ダンパ及びインクの循環方法 - Google Patents
ダンパ及びインクの循環方法 Download PDFInfo
- Publication number
- WO2015174535A1 WO2015174535A1 PCT/JP2015/064115 JP2015064115W WO2015174535A1 WO 2015174535 A1 WO2015174535 A1 WO 2015174535A1 JP 2015064115 W JP2015064115 W JP 2015064115W WO 2015174535 A1 WO2015174535 A1 WO 2015174535A1
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- Prior art keywords
- ink
- chamber
- damper
- head
- circulation
- Prior art date
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17596—Ink pumps, ink valves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/17506—Refilling of the cartridge
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/17513—Inner structure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/1752—Mounting within the printer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/1752—Mounting within the printer
- B41J2/17523—Ink connection
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/18—Ink recirculation systems
Definitions
- the present invention relates to a damper and an ink circulation method.
- Conventional inkjet printers sometimes include a circulation mechanism that guides ink from the head to the ink tank and circulates the ink between the head and the ink tank when the head that ejects the ink is on standby (for example, a patent) Reference 1).
- a three-way valve is attached to the outlet of the ink tank, a three-way valve is attached to the inlet of a damper that supplies ink from the ink tank to the head, and the three-way valves are connected to the head from the ink tank.
- the ink supply tube for supplying ink to the damper due to the difference is connected to the ink circulation tube for guiding the ink on the damper side to the ink tank side.
- the circulation mechanism is provided with a circulation pump for circulating the ink between the ink tank and the damper in the ink circulation tube.
- the three-way valve communicates the ink tank and the ink supply tube, communicates the ink supply tube and the damper, and closes both ends of the ink circulation tube.
- the circulation mechanism when the head is waiting, the three-way valve closes the ink tank outlet and the damper inlet, the ink supply tube and the ink circulation tube communicate with each other, and the circulation pump serves as the ink supply tube and the ink circulation tube. Ink is circulated between.
- the circulation mechanism described in Patent Document 1 tends to increase the cost of the ink jet printer in order to provide an expensive three-way valve. Further, the circulation mechanism described in Patent Document 1 cannot prevent precipitation of the ink coloring material in the damper because the inlet of the damper is closed during the circulation of the ink.
- the present invention has been made in view of the above, and has as its first object to provide a damper and an ink circulation method capable of suppressing precipitation of an ink coloring material, and to reduce the cost.
- a second object is to provide a method of circulating ink.
- a damper includes a water head difference that supplies ink supplied from an ink tank of an ink jet printer to the head that discharges the ink.
- a supply chamber that temporarily stores the ink
- an ink chamber that communicates with the supply chamber via a communication path and supplies ink to the head
- a sealing body that closes the communication path
- a flexible film attached so as to cover the ink chamber from the outside; an open body that opens the sealing body in conjunction with the flexible film; and urges the open body toward the outside of the ink chamber
- An open spring that moves in response to the biasing force of the open spring when the ink in the ink chamber decreases, and the open body is interlocked with the flexure of the flexible film to the inside of the ink chamber.
- the sealing body is moved to one side to open the communication passage, and when the ink in the ink chamber increases, the flexible film bends to the outside of the ink chamber to interlock the sealing.
- An open / close valve that moves the body to the other side and closes the communication passage, and a lead-out port that guides the ink to a circulation pipe that circulates the ink between the ink tank and the ink tank. It is characterized by that.
- the ink in the ink chamber is placed between the ink tank and the ink when circulating between the head and the ink tank. It will be circulated with. For this reason, it is possible to suppress precipitation of the ink coloring material in the ink chamber of the damper.
- the suction force of the pump for circulating the ink becomes very weak. For this reason, it is possible to circulate the ink while maintaining the meniscus surface of the nozzle of the head without providing a three-way valve between the ink tank and the damper. Therefore, cost reduction can be achieved.
- the suction force of the pump for circulating the ink becomes very weak, it is possible to achieve both the supply of the ink to the head and the circulation of the ink. Accordingly, it is possible to circulate the ink even during printing, and thus it is possible to reliably suppress precipitation of the ink coloring material. Furthermore, since the ink can be circulated even if the suction force of the pump is weakened, the precipitation of the ink coloring material can be suppressed.
- the outlet port may be disposed below the opening of the communication passage in the ink chamber in a state where the damper is installed in the ink jet printer.
- the outlet is arranged below the opening of the communication passage, the ink in the ink chamber can be reliably circulated between the ink tanks.
- the ink is supplied from the ink tank and installed in the ink jet printer, the ink inflow port leading the supplied ink to the supply chamber, and the ink in the ink chamber from the outlet And an ink circulation port for guiding the ink to the circulation path.
- the ink inlet is provided on the upper surface, the ink can be supplied to the head by the water head difference. Further, since the ink inlet and the ink circulation port are provided on the upper surface, the damper and the ink tank can be easily connected.
- the ink circulation method of the present invention has an ink supply path for storing ink and supplying it to a head that discharges ink in the ink tank, and an ink tank, a damper, And an ink circulation method in which the ink is circulated between the head side and the ink tank side of the ink jet printer in which the heads are arranged in this order, the damper includes a supply chamber that temporarily stores the ink, and the supply An ink chamber that communicates with the chamber via a communication path and supplies ink to the head; a sealing body that closes the communication path; and a flexible film that is attached so as to cover the ink chamber from the outside; An open body that opens the sealing body in conjunction with the flexible film; and an open spring that urges the open body toward the outside of the ink chamber.
- the sealing body When the ink in the ink chamber decreases, the sealing body is moved to one side by the opening body in conjunction with the flexure of the flexible film inward of the ink chamber against the biasing force of the opening spring. When the ink in the ink chamber increases, the sealing body moves to the other side in conjunction with bending of the flexible film to the outside of the ink chamber.
- the ink is guided from the outlet opening opened to the ink chamber to one of the supply pipe of the ink supply path and the ink tank, the ink is circulated between the head and the ink tank, and the ink color material is circulated. Precipitation can be suppressed.
- the suction force of the pump for circulating the ink becomes very weak. For this reason, it is possible to circulate the ink while maintaining the meniscus surface of the nozzle of the head without providing a three-way valve between the ink tank and the damper. Therefore, cost reduction can be achieved.
- the suction force of the pump for circulating the ink becomes very weak, it is possible to achieve both the supply of the ink to the head and the circulation of the ink. Accordingly, it is possible to circulate the ink even during printing, and thus it is possible to reliably suppress precipitation of the ink coloring material. Furthermore, since the ink can be circulated even if the suction force of the pump is weakened, the precipitation of the ink coloring material can be suppressed.
- the supply pipe is directly connected to the ink tank and the ink inlet of the damper, and the circulation pipe of the ink supply path is directly connected to the ink circulation port of the damper and the supply pipe. Then, the pump provided in the circulation pipe can be driven so as to maintain the meniscus surface of the ink formed at the nozzle tip of the head.
- the supply pipe is directly connected to the ink inlet of the ink tank and the damper
- the circulation pipe is directly connected to the ink circulation port and the supply pipe of the damper
- the pump is driven to maintain the meniscus surface.
- Ink can be circulated while maintaining the meniscus surface without providing a three-way valve. Therefore, the cost can be reduced and the ink can be circulated during printing. In this case, precipitation of the ink coloring material can be reliably suppressed.
- the circulation pipe may be installed below the supply pipe in a state installed in the ink jet printer.
- the circulation pipe is installed below the supply pipe, when the ink is circulated by the pump, the pressure in the supply pipe can be made higher by the pressure difference of the head than the pressure in the circulation pipe. . Therefore, the meniscus surface at the tip of the head can be reliably maintained even during circulation without providing a three-way valve.
- the ink circulation method of the present invention has an ink supply path for storing ink and supplying it to a head for discharging ink in an ink tank.
- the ink is circulated between the head side and the ink tank side of the ink jet printer in which the ink tank, the damper, and the head are arranged in this order from the upstream side to the downstream side of the ink supply path.
- the damper includes a supply chamber that temporarily stores the ink, an ink chamber that communicates with the supply chamber via a communication path and supplies ink to the head, a sealing body that closes the communication path, A flexible film attached so as to cover the ink chamber from the outside; an open body that opens the sealing body in conjunction with the flexible film; and An opening spring that urges the ink chamber in the outward direction, and when the ink in the ink chamber decreases, the flexible film bends inward of the ink chamber against the urging force of the opening spring.
- the open body moves the sealing body to one side to open the communication passage, and when the ink in the ink chamber increases, the flexible film bends to the outside of the ink chamber.
- An opening / closing valve that interlocks and moves the sealing body to the other side to close the communication passage, and an upstream end portion of the supply pipe of the ink supply path closer to the damper than the damper, and
- a circulation pipe is connected to either one of the end of the supply pipe closer to the ink tank and the downstream side of the ink tank and the ink tank, and the sealing body closes the communication passage ,pump Thereby driven, and wherein the circulating the ink between said circulation pipe and the supply pipe.
- the pump when the sealing body closes the communication passage, the pump is driven to circulate the ink. Therefore, the ink is circulated while maintaining the meniscus surface of the nozzle without providing a three-way valve upstream of the damper. be able to. Further, according to the present invention, since the ink can be circulated without using the three-way valve instead of the three-way valve, the cost of the damper can be reduced.
- the circulation tube may be connected to the ink tank.
- the ink can be circulated including the ink tank. Further, since the path for circulating the ink can be lengthened, the ratio of the path for circulating the ink in the ink flow path can be increased, and the circulation efficiency can be improved.
- the pump may be driven so that the pressure of the ink in the direction in which the sealing body closes the communication path acts on the supply chamber.
- the pump since the pump is driven so as to close the communication passage with the sealing body, when the ink is circulated, the pump is driven so as to apply a positive pressure to the supply chamber of the damper. Therefore, according to the present invention, the communication path can be closed with the sealing body when the ink is circulated.
- the sealing body is pulled and the sealing body easily opens the communication path. . That is, in the ink circulation method, when the pump is driven to circulate the ink, the sealing body opens the communication path, passes through the damper, and affects the ink in the head. It can lead to a situation where the meniscus surface is broken. In order to prevent such a situation, the ink circulation method requires a severe control such as adjusting the pressure of the ink by providing a regulator in the path for circulating the ink, and also performs the pressure adjustment. As a result, the cost of the entire apparatus that circulates ink also increases.
- the pump can be driven so that the supply chamber of the damper becomes positive pressure, and the sealing body can act in the direction of closing the communication passage. Therefore, the present invention drives the pump rather than driving the pump so that the damper supply chamber has a negative pressure when, for example, it is desired to drive the pump strongly in order to circulate ink containing a large amount of sediment.
- the demand for ink pressure management at the time can be relaxed.
- the ink circulation area can be blocked from the head, so that the ink in the head is affected. Absent. Therefore, according to the present invention, the ink can be circulated without breaking the meniscus surface of the ink of the head.
- the supply pipe supplies the ink from the ink tank to the head via the damper due to a water head difference when printing by the ink jet printer, and the pump includes the circulation pipe. Can only be provided.
- the supply pipe can supply ink from the ink tank to the head using the water head difference. Therefore, according to the present invention, since it is not necessary to provide a pump in the supply pipe, the cost can be reduced. Further, according to the present invention, since the pump is provided only in the circulation pipe, even if the pump fails and the ink cannot be sent out, the ink is supplied from the ink tank to the head through the supply pipe using the water head difference. Inkjet printers can perform printing.
- the pump may be driven when the ink jet printer is stopped to circulate the ink.
- the ink circulation is performed when printing is stopped, so that the movement of the open / close valve in the ink chamber of the damper can be stopped when the ink is circulated.
- the sealing body closes the communication path. Therefore, in the present invention, when the ink is circulated, the sealing body in the ink chamber of the damper can be used instead of the three-way valve, and the area where the ink is circulated and the area of the head can be blocked.
- the ink is circulated by the pump, the meniscus surface of the head is not broken, and the ink can be normally discharged even after the ink circulation is completed.
- the damper and the ink circulation method according to the present invention have an effect that the precipitation of the ink coloring material can be suppressed. Furthermore, since the color material and the metallic pigment do not precipitate in the ink chamber, the damper can be functioned efficiently without wasting the volume of the ink chamber.
- the damper and ink circulation method has an effect that the cost can be reduced.
- FIG. 1 is a diagram illustrating an example of a circulation mechanism including a damper according to the first embodiment.
- FIG. 2 is a perspective view of the damper according to the first embodiment.
- FIG. 3 is another perspective view of the damper according to the first embodiment.
- FIG. 4 is a side view of a state in which the damper according to the first embodiment is attached to the head.
- FIG. 5 is a sectional view taken along line AA in FIG.
- FIG. 6 is another cross-sectional view taken along the line AA in FIG.
- FIG. 7 is a diagram illustrating an example of a main part of a circulation mechanism including a damper according to a modification of the first embodiment.
- FIG. 8 is a diagram illustrating an example of a circulation mechanism including the damper according to the second embodiment.
- FIG. 1 is a diagram illustrating an example of a circulation mechanism including a damper according to the first embodiment.
- FIG. 2 is a perspective view of the damper according to the first embodiment.
- FIG. 9 is a perspective view of a damper according to the second embodiment.
- FIG. 10 is another perspective view of the damper according to the second embodiment.
- FIG. 11 is a side view of a state in which the damper according to the second embodiment is attached to the head.
- 12 is a cross-sectional view taken along line BB in FIG.
- FIG. 13 is another cross-sectional view along the line BB in FIG.
- FIG. 14 is a diagram illustrating an example of a main part of a circulation mechanism including a damper according to Modification 1 of Embodiment 2.
- FIG. 15 is a diagram illustrating an example of a circulation mechanism including a damper according to the second modification of the second embodiment.
- FIG. 16 is a diagram illustrating an example of a main part of a circulation mechanism including a damper according to the third modification of the second embodiment.
- FIG. 1 is a diagram illustrating an example of a circulation mechanism including a damper according to the first embodiment.
- the ink circulation mechanism 1 (hereinafter simply referred to as a circulation mechanism) provided with a damper according to the first embodiment is applied to the ink jet printer 100.
- the ink jet printer 100 reciprocates a head 102 having a plurality of nozzles 102a (only one is shown in FIG. 1) that ejects ink I supplied from an ink tank 101 in the main scanning direction. Are moved relative to each other in the sub-scanning direction orthogonal to the main scanning direction, and the ink I is ejected from the nozzle 102a onto the printing medium, thereby printing the printing medium.
- the ink tank 101 stores ink I (for example, white ink) in which the color material is easily precipitated and ink I (for example, cyan, magenta, yellow, and black ink) in which the color material is not easily precipitated. .
- the circulation mechanism 1 circulates the ink I between the head 102 and the ink tank 101, and particularly suppresses the precipitation of the color material of the ink I in which the color material such as white ink is liable to precipitate.
- a metal pigment ink such as silver may be used as the ink I that easily precipitates.
- the circulation mechanism 1 may circulate the ink I in which the coloring material is difficult to precipitate.
- the circulation mechanism 1 circulates the ink I between the head 102 and the ink tank 101 in a standby state in which the reciprocation of the head 102 in the main scanning direction and the discharge of the ink I from the nozzle 102a are stopped.
- the circulation mechanism 1 includes an ink supply path 2, an on-off valve 30, a damper 40, a pump 60, a control means 70, and the like.
- the ink supply path 2 stores the ink I and supplies it to the head 102 that discharges the ink I in the ink tank 101.
- the ink tank 101, the damper 40, and the head 102 are arranged in this order from the upstream side to the downstream side of the ink supply path 2.
- the ink supply path 2 supplies ink from the ink tank 101 to the damper 40 and the head 102 in order from the upstream side to the downstream side in the ink flow direction, and between the head 102 and the ink tank 101.
- the ink I is circulated between the supply pipe 10 and the circulation pipe 20.
- the supply pipe 10 and the circulation pipe 20 are made of a flexible material and are formed in a pipe (tube) shape.
- the supply pipe 10 has one end 10 a directly connected to the supply port 101 a of the ink tank 101 and the other end 10 b directly connected to the ink inlet 46 of the damper 40.
- the supply pipe 10 supplies the ink I in the ink tank 101 to the damper 40 by a water head difference.
- the supply port 101 a of the ink tank 101 is provided with an on-off valve 103 that is always open with the ink tank 101 installed in the inkjet printer 100.
- the circulation tube 20 circulates the ink I between the ink tank 101 side.
- the circulation tube 20 has one end 20 a directly connected to the ink circulation port 47 of the damper 40 and the other end 20 b directly connected to one end 10 a connected to the ink tank 101 of the supply tube 10.
- the circulation pipe 20 is installed below the supply pipe 10 while being installed in the inkjet printer 100. That is, the circulation pipe 20 is installed below the supply pipe 10 in a state where it is installed in the inkjet printer 100.
- the on-off valve 30 is provided at the end of the circulation pipe 20 near the damper 40. The on-off valve 30 opens and closes the ink supply path 2 formed by the circulation pipe 20.
- FIG. 2 is a perspective view of the damper according to the first embodiment.
- FIG. 3 is another perspective view of the damper according to the first embodiment.
- FIG. 4 is a side view of a state in which the damper according to the first embodiment is attached to the head.
- FIG. 5 is a sectional view taken along line AA in FIG.
- FIG. 6 is another cross-sectional view taken along the line AA in FIG.
- the damper 40 is a hydraulic head type damper that supplies the ink I supplied from the ink tank 101 of the inkjet printer 100 due to the hydraulic head difference to the head 102 that discharges the ink I.
- the damper 40 is attached to the head 102 of the inkjet printer 100 and supplies the ink I supplied from the ink tank 101 to the head 102.
- the damper 40 supplies the ink I to the head 102 while adjusting the internal pressure of the head 102 to a predetermined slight negative pressure slightly lower than the atmospheric pressure. That is, the damper 40 forms the meniscus surface IS (shown in FIG. 1) of the upward convex curved ink I at the tip of the nozzle 102a of the head 102.
- the damper 40 includes a damper main body 41, a filter (not shown) provided in the damper main body 41, and an opening / closing valve 42.
- the damper main body 41 is formed in a substantially rectangular parallelepiped shape by injection molding using synthetic resin or the like, and is attached to the head 102 in a state of being erected from the head 102 as shown in FIG.
- a filter chamber 43 shown in FIG. 3
- a supply chamber 44, and an ink chamber 45 are formed on both side surfaces of the damper main body 41.
- the filter chamber 43, the supply chamber 44, and the ink chamber 45 are spaces recessed from both side surfaces of the damper body 41.
- the filter chamber 43, the supply chamber 44, and the ink chamber 45 are respectively Two are provided.
- two ink inflow ports 46 and two ink circulation ports 47 are provided on the upper surface of the damper main body 41 in a state of being attached to the head 102 of the damper main body 41, that is, in a state of being installed in the ink jet printer 100.
- the other end 10 b of the supply pipe 10 is connected to the ink inlet 46
- one end 20 a of the circulation pipe 20 is connected to the ink circulation port 47.
- the ink inlet 46 supplies the ink I from the ink tank 101 due to a water head difference and guides the supplied ink I to the supply chamber 44.
- the ink circulation port 47 guides the ink I in the ink chamber 45 to the circulation pipe 20 of the ink supply path 2.
- Two head supply ports 48 for supplying ink I to the head 102 are provided on the lower surface of the damper main body 41 in a state of being attached to the head 102 of the damper main body 41, that is, in a state of being installed in the ink jet printer 100.
- the ink inlet 46, the filter chamber 43, the supply chamber 44, the ink chamber 45, the ink circulation port 47, and the head supply port 48 are in a one-to-one correspondence.
- the ink I is supplied to the filter chamber 43 through the corresponding ink inlet 46.
- the filter chamber 43 accommodates a filter (not shown) that filters the ink I and removes foreign matter from the ink I.
- the supply chamber 44 is supplied with the ink I filtered by the filter in the corresponding filter chamber 43.
- the supply chamber 44 temporarily stores the supplied ink I.
- the ink chamber 45 is provided on the back side of the corresponding supply chamber 44, communicates with the supply chamber 44 via the communication passage 49, and supplies the ink I supplied from the supply chamber 44 to the head 102. Further, in the ink chamber 45, a lead-out port 50 that leads the ink in the ink chamber 45 to the circulation tube 20 is opened.
- the outlet 50 guides the ink I in the ink chamber 45 to the ink circulation port 47, and the ink circulation port 47 guides the ink I in the ink chamber 45 from the outlet 50 to the circulation tube 20.
- the outlet 50 is disposed below the opening 49 a of the communication passage 49 in the ink chamber 45 in a state where the damper 40 is installed in the ink jet printer 100.
- the open / close valve 42 opens the communication passage 49 when the ink I in the ink chamber 45 decreases, and closes the communication passage 49 when the ink I increases in the ink chamber 45.
- the opening / closing valve 42 includes a sealing body 51, an opening body 52, and a flexible film 53.
- the sealing body 51 closes the communication passage 49, is formed in a disk shape, and is accommodated in the supply chamber 44.
- the sealing body 51 is formed in a disk shape larger than the opening 49 a of the communication passage 49.
- the sealing body 51 is urged in a direction to close the communication passage 49 by a sealing spring 55 provided between a sealing cap 54 that closes an opening provided on both side surfaces of the damper main body 41 of the supply chamber 44. ing.
- the sealing body 51 is spaced apart from the opening 49 a of the communication passage 49 to open the communication passage 49 and closely contacts the opening 49 a of the communication passage 49 to close the communication passage 49.
- the opening body 52 opens the communication passage 49 to the sealing body 51 in conjunction with the bending of the flexible film 53.
- the open body 52 is integrally provided with a columnar open portion 52a and a disk-shaped pressure receiving portion 52b.
- the outer diameter of the pressure receiving part 52b is formed larger than the outer diameter of the opening part 52a, and the opening part 52a is erected from the center of the pressure receiving part 52b.
- the outer diameter of the open portion 52 a is smaller than the inner diameter of the communication passage 49.
- the open body 52 is accommodated in the ink chamber 45 in a state where the pressure receiving portions 52 b are located on both surface sides of the damper main body 41 and the open portion 52 a faces the communication passage 49.
- the opening body 52 is urged in a direction away from the communication passage 49, that is, in the outer direction of the ink chamber 45 by an opening spring 56 provided between the pressure receiving portion 52 b and the bottom surface of the ink chamber 45.
- an opening spring 56 provided between the pressure receiving portion 52 b and the bottom surface of the ink chamber 45.
- the flexible film 53 is made of a synthetic resin having flexibility and is formed in a sheet shape.
- the flexible film 53 is welded to both side surfaces of the damper main body 41, the pressure receiving portion 52b of the open body 52, the sealing cap 54, and the like, and is attached to both side surfaces of the damper main body 41 so as to cover the ink chamber 45 from the outside. ing.
- the flexible film 53 seals the filter chamber 43, the supply chamber 44, the ink chamber 45, and the like.
- the flexible film 53 supports the open body 52 movably in a direction approaching or leaving the communication passage 49 by welding the pressure receiving portion 52b.
- the damper 40 is a mechanical damper in which the opening / closing valve 42 includes the sealing body 51, the opening body 52, the flexible film 53, and the like.
- the pump 60 is provided only in the circulation pipe 20, and sends the ink I in the ink chamber 45 of the damper 40 through the circulation pipe 20 toward the ink tank 101, and further passes through the supply pipe 10 and the damper 40.
- the ink I is circulated between the head 102 and the ink tank 101.
- a known tubing pump or diaphragm pump can be used as the pump 60.
- the control means 70 controls each part of the ink jet printer 100 including the pump 60 and the head 102 of the circulation mechanism 1.
- the control means 70 is comprised from hardware, such as an arithmetic unit and memory, and the program which implement
- the head 102 when a print command is input to the control unit 70, the head 102 is reciprocated in the main scanning direction by the control unit 70, and the head 102 and the print medium are relatively moved in the sub-scanning direction. Then, the ink I is ejected from the nozzles 102a of the head 9, and the print medium is printed in a predetermined pattern. During printing, the pump 60 is stopped. As described above, at the time of printing, the ink I is ejected from the nozzle 102a of the head 102. Since the ink I corresponding to the ejection amount is supplied from the damper 40 to the head 102, the ink I is not insufficient.
- Ink I can be stably ejected from the nozzle 102a.
- the flexible film 53 is damped.
- the opening / closing valve 42 applies a negative pressure to the ink chamber 45 by bending outward from both side surfaces of the main body 51.
- the flexible The flexible film 53 bends inside the ink chamber 45 against the urging force of the opening spring 56.
- the opening body 52 is brought close to the communication passage 49 against the urging force of the opening spring 56, and the sealing body 51 is moved by the opening 52 a of the opening body 52.
- the sealing body 51 is moved to one side away from the opening 49a of the communication passage 49 as shown in FIG.
- the communication passage 49 is opened, and the ink I is supplied from the supply chamber 44 to the ink chamber 45.
- the supply of the ink I to the nozzle 102 a of the head 102 and the supply of the ink I to the ink chamber 45 are performed simultaneously.
- the internal pressure in the ink chamber 45 gradually increases, and when the ink I in the ink chamber 45 increases, the internal pressure in the ink chamber 45 and the opening spring 56 The force combined with the urging force exceeds the atmospheric pressure acting on the outside of the flexible film 53. Then, the flexible film 53 is deflected to the outside of the ink chamber 45 by the internal pressure in the ink chamber 45 and the biasing force of the release spring 56, so that the flexible film 53 moves to increase the volume of the ink chamber 45. To do. Then, as shown in FIG.
- the opening portion 52 a of the opening body 52 is separated from the sealing body 51 in conjunction with the flexure of the flexible film 53 to the outside of the ink chamber 45. Therefore, the sealing spring 55 moves the sealing body 51 to the other side close to the opening 49a of the communication passage 49, closes the communication passage 49, and stops the supply of the ink I from the supply chamber 44 to the ink chamber 45. Is done. In this way, the ink jet printer 100 supplies the ink tank 101 to the upstream side during printing and supplies the ink I from the ink tank 101 to the downstream side in order to the supply pipe 10, the damper 40, and the head 102.
- the inkjet printer 100 described above shifts to a standby state when printing of the print command input to the control means 70 is completed.
- the control unit 70 stops the movement of the head 102 in the main scanning direction, stops the movement of the head 102 and the print medium in the sub scanning direction, and stops the ejection of the ink I from the nozzles 102a of the head 102.
- the control unit 70 of the ink jet printer 100 executes an ink circulation method using the circulation mechanism 1 when the ink jet printer 100 is in a standby state (printing is stopped).
- the ink circulation method is a method of circulating the ink I between the ink tank 101 and the head 102 to which the ink I is supplied from the ink tank 101 due to the water head difference. That is, the ink circulation method is a method of circulating the ink I between the head 102 side and the ink tank 101 side.
- the control means 70 operates the pump 60 in a state where the nozzle 102a of the head 102 and the head supply port 48 as a flow path for supplying ink I to the head 102 of the damper 40 are communicated. .
- the pump 60 is driven when the ink jet printer 100 is stopped to circulate the ink I.
- the ink circulation method when the pump 60 is operated, the ink I in the ink chamber 45 is sucked from the outlet 50 through the circulation pipe 20 and the ink circulation port 47, and the ink I in the ink chamber 45 is sucked. Is led from the outlet 50 to the circulation pipe 20.
- the ink I is supplied to the supply pipe 10 through the circulation pipe 20 and supplied into the damper 40. Then, the communication passage 49 of the damper 40 is opened and closed by the sealing body 51 and the opening body 52, and the ink I supplied to the damper 40 is accommodated in the ink chamber 45.
- the ink circulation method circulates ink between the ink tank 101 and the head 102.
- the control means 70 drives the pump 60 at a predetermined rotational speed or the like.
- the predetermined number of rotations refers to the number of rotations at which the pressure of the ink I becomes a pressure that can maintain the meniscus surface IS of the ink I in the nozzle 102 a of the head 102.
- the control unit 70 is configured so that the pressure of the ink I in the nozzle 102a of the head 102 is higher than A (kPa: gauge pressure). Then, the pump 60 is driven. That is, the control means 70 drives the pump 60 so as to maintain the meniscus surface IS formed at the tip of the nozzle 102 a of the head 102.
- the control means 70 When the meniscus strength is A (kPa: gauge pressure), the control means 70 causes the pressure in the ink chamber 45 of the damper 40 to become a negative pressure C (kPa: gauge pressure) higher than A, and the nozzle 102a of the head 102.
- the control means 70 drives the pump 60 at a predetermined rotational speed so that the pressure at the tip becomes C + 9.8 ⁇ B (kPa: gauge pressure).
- a pressure sensor or the like may be provided in the ink chamber 45, and the control means 70 may drive the pump 60 so that the meniscus surface IS can be maintained by so-called feedback control.
- the damper 40 since the outlet 50 for guiding the ink I to the circulation pipe 20 is opened in the ink chamber 45, the ink I is transferred between the head 102 and the ink tank 101. In this case, the ink I in the ink chamber 45 is circulated with the ink tank 101. For this reason, precipitation of the ink coloring material in the ink chamber 45 of the damper 40 can be suppressed. Furthermore, since the colorant and the metal pigment do not precipitate in the ink chamber 45, the damper 40 can efficiently function the damper 40 without wasting the volume of the ink chamber 45.
- the damper 40 in order to circulate the ink I in the ink chamber 45 with the ink tank 101, the suction force of the pump 60 for circulating the ink I becomes very weak. Therefore, the ink I can be circulated while maintaining the meniscus surface IS of the nozzle 102a of the head 102 without providing a three-way valve between the ink tank 101 and the damper 40. Therefore, cost reduction can be achieved. Further, since the damper 40 guides the ink I in the ink chamber 45 to the circulation pipe 20 by the pump 60 having a weak suction force, the meniscus surface of the nozzle 102a of the head 102 even if the open / close valve 42 is a mechanical damper. The ink I can be circulated while maintaining the IS. Thus, the present invention is particularly suitable for the mechanical damper 40.
- the damper 40 can reliably circulate the ink I in the ink chamber 45 with the ink tank 101.
- the damper 40 is provided with the ink inlet 46 on the upper surface of the damper main body 41, the ink I can be supplied to the head 102 due to a water head difference. Further, since the ink inlet 46 and the ink circulation port 47 are provided on the upper surface of the damper main body 41, the damper 40 and the ink tank 101 can be easily connected.
- the ink I is guided from the outlet 50 opened in the ink chamber 45 to the circulation tube 20, so the color of the ink I in the ink chamber 45 of the damper 40 and the like. Sedimentation of the material can be suppressed.
- the ink circulation method is such that the supply pipe 10 is directly connected to the ink tank 101 and the ink inlet 46 of the damper 40, and the circulation pipe 20 is directly connected to the ink circulation port 47 and the supply pipe 10 of the damper 40. Since 60 is driven so as to maintain the meniscus surface IS, the ink I can be circulated while maintaining the meniscus surface IS of the nozzle 102a of the head 102 without providing a three-way valve. Therefore, cost reduction can be achieved.
- the suction force of the pump 60 for circulating the ink I is very weak, it is possible to achieve both the supply of the ink I to the head 102 and the circulation of the ink I. In this case, the ink I It is possible to reliably suppress the precipitation of the coloring material.
- the circulation pipe 20 is installed below the supply pipe 10 in the ink circulation method, when the ink I is circulated by the pump 60, the pressure difference of the water head relative to the pressure in the circulation pipe 20 is obtained.
- the pressure in the supply pipe 10 can be increased. Therefore, the meniscus surface IS at the tip of the nozzle 102a of the head 102 can be reliably maintained even during circulation without providing a three-way valve.
- FIG. 7 is a diagram illustrating an example of a main part of a circulation mechanism including a damper according to a modification of the first embodiment.
- the same parts as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted.
- the circulation mechanism 1 directly connects the other end 20 b of the circulation pipe 20 to the supply port 101 a of the ink tank 101, and the nozzle 102 a and the damper 40 of the head 102.
- the ink in the ink chamber 45 is guided to the ink tank 101 from the outlet 50 opened in the ink chamber 45 of the damper 40 in a state where the flow path for supplying ink to the head 102 is communicated.
- the ink I is guided to the ink tank 101 from the outlet 50 opened in the ink chamber 45, so the color of the ink I in the ink chamber 45 of the damper 40 and the like. Sedimentation of the material can be suppressed.
- FIG. 8 is a diagram illustrating an example of a circulation mechanism including the damper according to the second embodiment.
- An ink circulation mechanism 1-1 (hereinafter simply referred to as a circulation mechanism) including a damper according to the second embodiment is applied to the ink jet printer 100.
- the ink jet printer 100 reciprocates a head 102 having a plurality of nozzles 102a (only one is shown in FIG. 8) that ejects ink I supplied from an ink tank 101 in the main scanning direction, and the head 102 and a print medium. Are moved relative to each other in the sub-scanning direction orthogonal to the main scanning direction, and the ink I is ejected from the nozzle 102a onto the printing medium, thereby printing the printing medium.
- the ink tank 101 stores ink I (for example, white ink) in which the color material is easily precipitated and ink I (for example, cyan, magenta, yellow, and black ink) in which the color material is not easily precipitated. .
- the circulation mechanism 1-1 circulates the ink I between the head 102 and the ink tank 101, and particularly suppresses the precipitation of the color material of the ink I in which the color material such as white ink is liable to precipitate.
- a metal pigment ink such as silver may be used as the ink I that easily precipitates.
- the circulation mechanism 1-1 may circulate the ink I in which the color material is difficult to precipitate.
- the circulation mechanism 1 circulates the ink I between the head 102 and the ink tank 101 in a standby state in which the reciprocation of the head 102 in the main scanning direction and the discharge of the ink I from the nozzle 102a are stopped.
- the circulation mechanism 1 includes an ink supply path 2, a damper 40-1, a pump 60, a control means 70, and the like.
- the ink supply path 2 stores the ink I and supplies it to the head 102 that discharges the ink I in the ink tank 101.
- the ink tank 101, the damper 40, and the head 102 are arranged in this order from the upstream side to the downstream side of the ink supply path 2.
- the ink supply path 2 supplies ink from the ink tank 101 to the damper 40 and the head 102 in order from the upstream side to the downstream side in the ink flow direction, and between the head 102 and the ink tank 101.
- the ink I is circulated between them, and includes a supply pipe 10 (corresponding to an ink supply path) and a circulation pipe 20 (corresponding to an ink circulation path).
- the supply pipe 10 and the circulation pipe 20 are made of a flexible material and are formed in a pipe (tube) shape.
- the supply pipe 10 has one end 10 a directly connected to the supply port 101 a of the ink tank 101 and the other end 10 b directly connected to the ink inlet 46 of the damper 40.
- the supply pipe 10 supplies the ink I in the ink tank 101 to the damper 40-1 due to a water head difference when the ink jet printer 100 performs printing.
- the supply port 101 a of the ink tank 101 is provided with an on-off valve 103 that is always open with the ink tank 101 installed in the inkjet printer 100.
- the circulation tube 20 circulates the ink I between the ink tank 101 side.
- the circulation pipe 20 has one end 20 a directly connected to the other end 10 b of the supply pipe 10 (corresponding to an end on the upstream side of the damper 40 near the damper 40).
- the circulation pipe 20 is directly connected to one end 10 a (corresponding to an end portion on the downstream side of the ink tank 101 near the ink tank 101) where the other end 20 b is connected to the ink tank 101 of the supply pipe 10.
- the circulation pipe 20 is installed below the supply pipe 10 while being installed in the inkjet printer 100. That is, the circulation pipe 20 is installed below the supply pipe 10 in a state where it is installed in the inkjet printer 100.
- FIG. 9 is a perspective view of a damper according to the second embodiment.
- FIG. 10 is another perspective view of the damper according to the second embodiment.
- FIG. 11 is a side view of a state in which the damper according to the second embodiment is attached to the head.
- 12 is a cross-sectional view taken along line BB in FIG.
- FIG. 13 is another cross-sectional view along the line BB in FIG.
- the damper 40-1 is a hydraulic head type damper that supplies the ink I supplied from the ink tank 101 by the hydraulic head difference to the head 102 that discharges the ink I when the inkjet printer 100 performs printing.
- the damper 40-1 is attached to the head 102 of the inkjet printer 100 and supplies the ink I supplied from the ink tank 101 to the head 102.
- the damper 40 supplies the ink I to the head 102 while adjusting the internal pressure of the head 102 to a predetermined slight negative pressure slightly lower than the atmospheric pressure. That is, the damper 40 forms the meniscus surface IS (shown in FIG. 8) of the upward convex curved ink I at the tip of the nozzle 102a of the head 102.
- the damper 40-1 includes a damper main body 41, a filter (not shown) provided in the damper main body 41, and an opening / closing valve 42, as shown in FIGS.
- the damper main body 41 is formed in a substantially rectangular parallelepiped shape by injection molding using synthetic resin or the like, and is attached to the head 102 in a state of being erected from the head 102 as shown in FIG.
- a filter chamber 43 (shown in FIG. 10), a supply chamber 44, and an ink chamber 45 are formed on both side surfaces of the damper main body 41.
- the filter chamber 43, the supply chamber 44, and the ink chamber 45 are spaces recessed from both side surfaces of the damper body 41.
- the filter chamber 43, the supply chamber 44, and the ink chamber 45 are respectively Two are provided.
- two ink inlets 46 are provided on the upper surface of the damper main body 41 in a state of being attached to the head 102 of the damper main body 41, that is, in a state of being installed in the ink jet printer 100.
- the other end 10 b of the supply pipe 10 is connected to the ink inlet 46, and one end 20 a of the circulation pipe 20 is connected to the other end 10 b of the supply pipe 10.
- the ink inlet 46 supplies the ink I from the ink tank 101 due to a water head difference and guides the supplied ink I to the supply chamber 44.
- Two head supply ports 48 for supplying ink I to the head 102 are provided on the lower surface of the damper main body 41 in a state of being attached to the head 102 of the damper main body 41, that is, in a state of being installed in the ink jet printer 100.
- the ink inlet 46, the filter chamber 43, the supply chamber 44, the ink chamber 45, and the head supply port 48 correspond to each other on a one-to-one basis.
- the ink I is supplied to the filter chamber 43 through the corresponding ink inlet 46.
- the filter chamber 43 accommodates a filter (not shown) that filters the ink I and removes foreign matter from the ink I.
- the supply chamber 44 is supplied with the ink I filtered by the filter in the corresponding filter chamber 43.
- the supply chamber 44 temporarily stores the supplied ink I.
- the ink chamber 45 is provided on the back side of the corresponding supply chamber 44, communicates with the supply chamber 44 via the communication passage 49, and supplies the ink I supplied from the supply chamber 44 to the head 102. Further, as shown in FIGS. 9, 10, and 11, the damper 40-1 is not provided with the outlet 50 that opens into the ink chamber 45.
- the open / close valve 42 opens the communication passage 49 when the ink I in the ink chamber 45 decreases, and closes the communication passage 49 when the ink I increases in the ink chamber 45.
- the open / close valve 42 includes a sealing body 51, an opening body 52, and a flexible film 53.
- the sealing body 51 closes the communication passage 49, is formed in a disk shape, and is accommodated in the supply chamber 44.
- the sealing body 51 is formed in a disk shape larger than the opening 49 a of the communication passage 49.
- the sealing body 51 is urged in a direction to close the communication passage 49 by a sealing spring 55 provided between a sealing cap 54 that closes an opening provided on both side surfaces of the damper main body 41 of the supply chamber 44. ing.
- the sealing body 51 is spaced apart from the opening 49 a of the communication passage 49 to open the communication passage 49 and closely contacts the opening 49 a of the communication passage 49 to close the communication passage 49.
- the opening body 52 opens the communication passage 49 to the sealing body 51 in conjunction with the bending of the flexible film 53.
- the open body 52 is integrally provided with a columnar open portion 52a and a disk-shaped pressure receiving portion 52b.
- the outer diameter of the pressure receiving part 52b is formed larger than the outer diameter of the opening part 52a, and the opening part 52a is erected from the center of the pressure receiving part 52b.
- the outer diameter of the open portion 52 a is smaller than the inner diameter of the communication passage 49.
- the open body 52 is accommodated in the ink chamber 45 in a state where the pressure receiving portions 52 b are located on both surface sides of the damper main body 41 and the open portion 52 a faces the communication passage 49.
- the opening body 52 is urged in a direction away from the communication passage 49, that is, in the outer direction of the ink chamber 45 by an opening spring 56 provided between the pressure receiving portion 52 b and the bottom surface of the ink chamber 45.
- an opening spring 56 provided between the pressure receiving portion 52 b and the bottom surface of the ink chamber 45.
- the flexible film 53 is made of a synthetic resin having flexibility and is formed in a sheet shape.
- the flexible film 53 is welded to both side surfaces of the damper main body 41, the pressure receiving portion 52b of the open body 52, the sealing cap 54, and the like, and is attached to both side surfaces of the damper main body 41 so as to cover the ink chamber 45 from the outside. ing.
- the flexible film 53 seals the filter chamber 43, the supply chamber 44, the ink chamber 45, and the like.
- the flexible film 53 supports the open body 52 movably in a direction approaching or leaving the communication passage 49 by welding the pressure receiving portion 52b.
- the damper 40 is a mechanical damper in which the opening / closing valve 42 includes the sealing body 51, the opening body 52, the flexible film 53, and the like.
- the pump 60 is provided only in the circulation pipe 20, and sends the ink I in the ink chamber 45 of the damper 40 through the circulation pipe 20 toward the ink tank 101, and further passes through the supply pipe 10 and the damper 40.
- the ink I is circulated between the head 102 and the ink tank 101.
- a known tubing pump or diaphragm pump can be used as the pump 60.
- the control means 70 controls each part of the ink jet printer 100 including the pump 60 and the head 102 of the circulation mechanism 1.
- the control means 70 is comprised from hardware, such as an arithmetic unit and memory, and the program which implement
- the head 102 when a print command is input to the control unit 70, the head 102 is reciprocated in the main scanning direction by the control unit 70, and the head 102 and the print medium are relatively moved in the sub-scanning direction. Then, the ink I is ejected from the nozzles 102a of the head 9, and the print medium is printed in a predetermined pattern. During printing, the pump 60 is stopped. As described above, at the time of printing, the ink I is ejected from the nozzle 102a of the head 102. Since the ink I corresponding to the ejection amount is supplied from the damper 40 to the head 102, the ink I is not insufficient.
- Ink I can be stably ejected from the nozzle 102a.
- the flexible film 53 is damped.
- the opening / closing valve 42 applies a negative pressure to the ink chamber 45 by bending outward from both side surfaces of the main body 51.
- the flexible The flexible film 53 bends inside the ink chamber 45 against the urging force of the opening spring 56.
- the opening body 52 is brought close to the communication passage 49 against the urging force of the opening spring 56, and the sealing body 51 is moved by the opening 52 a of the opening body 52.
- the sealing body 51 is moved to one side away from the opening 49a of the communication passage 49 as shown in FIG.
- the communication passage 49 is opened, and the ink I is supplied from the supply chamber 44 to the ink chamber 45.
- the supply of the ink I to the nozzle 102 a of the head 102 and the supply of the ink I to the ink chamber 45 are performed simultaneously.
- the internal pressure in the ink chamber 45 gradually increases, and when the ink I in the ink chamber 45 increases, the internal pressure in the ink chamber 45 and the opening spring 56 The force combined with the urging force exceeds the atmospheric pressure acting on the outside of the flexible film 53. Then, the flexible film 53 is deflected to the outside of the ink chamber 45 by the internal pressure in the ink chamber 45 and the biasing force of the release spring 56, so that the flexible film 53 moves to increase the volume of the ink chamber 45. To do. Then, as shown in FIG. 13, the opening portion 52 a of the opening body 52 is separated from the sealing body 51 in conjunction with the flexible film 53 being bent to the outside of the ink chamber 45.
- the sealing spring 55 moves the sealing body 51 to the other side close to the opening 49a of the communication passage 49, closes the communication passage 49, and stops the supply of the ink I from the supply chamber 44 to the ink chamber 45. Is done.
- the ink jet printer 100 supplies the ink tank 101 to the upstream side during printing and supplies the ink I from the ink tank 101 to the downstream side in order to the supply pipe 10, the damper 40, and the head 102.
- the inkjet printer 100 described above shifts to a standby state when printing of the print command input to the control means 70 is completed.
- the control unit 70 stops the movement of the head 102 in the main scanning direction, stops the movement of the head 102 and the print medium in the sub scanning direction, and stops the ejection of the ink I from the nozzles 102a of the head 102.
- the control means 70 of the inkjet printer 100 executes an ink circulation method using the circulation mechanism 1 when the inkjet printer 100 is in a standby state (printing is stopped), that is, when the sealing body 51 closes the communication passage 49. To do.
- the ink circulation method is a method of circulating the ink I between the ink tank 101 and the head 102 to which the ink I is supplied from the ink tank 101 due to the water head difference. That is, the ink circulation method is a method of circulating the ink I between the head 102 side and the ink tank 101 side.
- the control means 70 operates the pump 60 to circulate the ink I between the supply pipe 10 and the circulation pipe 20.
- the pump 60 is driven when the ink jet printer 100 is stopped to circulate the ink I.
- the ink circulation method when the pump 60 is operated, the ink I in the other end 10b of the supply pipe 10 is sucked through the circulation pipe 20 or the like, and the ink I in the supply pipe 10 is supplied to the circulation pipe 20. Lead to.
- the ink I is supplied to one end 10 a of the supply pipe 10 through the circulation pipe 20.
- the ink circulation method circulates ink between the ink tank 101 and the head 102.
- the control means 70 drives the pump 60 at a predetermined rotational speed or the like.
- the predetermined number of rotations refers to the number of rotations at which the pressure of the ink I becomes a pressure that can maintain the meniscus surface IS of the ink I in the nozzle 102 a of the head 102.
- the control unit 70 is configured so that the pressure of the ink I in the nozzle 102a of the head 102 is higher than A (kPa: gauge pressure).
- the pump 60 is driven. That is, the control means 70 drives the pump 60 so as to maintain the meniscus surface IS formed at the tip of the nozzle 102 a of the head 102.
- the control means 70 When the meniscus strength is A (kPa: gauge pressure), the control means 70 causes the pressure in the ink chamber 45 of the damper 40 to become a negative pressure C (kPa: gauge pressure) higher than A, and the nozzle 102a of the head 102.
- the control means 70 drives the pump 60 at a predetermined rotational speed so that the pressure at the tip becomes C + 9.8 ⁇ B (kPa: gauge pressure).
- a pressure sensor or the like may be provided in the ink chamber 45, and the control means 70 may drive the pump 60 so that the meniscus surface IS can be maintained by so-called feedback control.
- the control unit 70 when the ink I is circulated between the ink tank 101 and the head 102 to which the ink I is supplied from the ink tank 101 due to the water head difference, the control unit 70 is configured as shown in FIG. Then, the pump 60 is driven so that the pressure of the ink I in the direction in which the sealing body 51 closes the communication passage 49 acts on the supply chamber 44 of the damper 40-1. For example, in the second embodiment, the control unit 70 stops printing in a state where the ink I is filled in the ink chamber 45 of the damper 40-1.
- the pump 60 is driven to circulate the ink I. Therefore, the three-way valve is upstream of the damper 40-1. Ink I can be circulated in a state where the meniscus surface IS of the nozzle 102a is maintained. Further, the damper 40-1 can circulate the ink I without providing the three-way valve by replacing the opening / closing valve 42 with the three-way valve, so that the cost can be reduced. In addition, since the supply of the ink I to the head 102 and the circulation of the ink I can be made compatible, precipitation of the coloring material of the ink I can be reliably suppressed.
- the suction force of the pump 60 for circulating the ink I is extremely weakened. Therefore, the ink I can be circulated while maintaining the meniscus surface IS of the nozzle 102a of the head 102 without providing a three-way valve between the ink tank 101 and the damper 40-1. Therefore, cost reduction can be achieved.
- the ink circulation method is such that the circulation of the ink I is performed when printing is stopped, so that the movement of the open / close valve 42 in the ink chamber 45 of the damper 40-1 is stopped when the ink I is circulated. Can be made.
- the sealing body 51 closes the communication path 49 in the damper 40-1.
- the sealing body 51 in the ink chamber 45 of the damper 40-1 can be used instead of the three-way valve, and the region where the ink I is circulated and the head 102, the ink I can be circulated by the pump 60, the meniscus surface IS of the head 102 is not broken, and the ink I can be normally discharged even after the ink I circulation ends. .
- the ink circulating method can use the sealing body 51 in the ink chamber 45 instead of the three-way valve, and the ink I is supplied to the ink supply path 2 by the pump 60 having a weak suction force. Therefore, even if the opening / closing valve 42 is a mechanical damper, the ink I can be circulated while maintaining the meniscus surface IS of the nozzle 102a of the head 102. Thus, the present invention is particularly suitable for the mechanical damper 40.
- the ink circulation method makes the suction force of the pump 60 for circulating the ink I very weak, it is possible to achieve both the supply of the ink I to the head 102 and the circulation of the ink I. . Therefore, since the ink circulation method can circulate the ink I even during printing, precipitation of the color material of the ink I can be reliably suppressed. Furthermore, since the ink I can be circulated even if the suction force of the pump 60 is weakened, precipitation of the color material of the ink I can be suppressed.
- the ink inlet 46 is provided on the upper surface of the damper main body 41, the ink I can be supplied to the head 102 due to a water head difference. Further, since the ink inlet 46 is provided on the upper surface of the damper main body 41, the damper 40 and the ink tank 101 can be easily connected.
- the ink circulation method of the second embodiment since the circulation pipe 20 is installed below the supply pipe 10, when the ink I is circulated by the pump 60, the pressure in the circulation pipe 20 is higher.
- the pressure in the supply pipe 10 can be increased by the pressure difference of the water head difference. Therefore, the ink circulation method can reliably maintain the meniscus surface IS at the tip of the nozzle 102a of the head 102 even during circulation without providing a three-way valve.
- the pump 60 is driven so that the pressure of the ink I in the direction in which the communication passage 49 is closed by the sealing body 41 acts on the supply chamber 44, so that the ink I is circulated.
- the pump 60 is driven so as to apply a positive pressure to the supply chamber 44 of the damper 40-1. Therefore, according to the ink circulation method, the communication passage 49 can be closed with the sealing body 41 when the ink I is circulated.
- the sealing body 51 is pulled and the sealing body 51 passes through the communication passage 49. It will be easy to open. That is, in the ink circulation method, when the pump 60 is driven to circulate the ink I, the sealing body 51 opens the communication path 49 and passes through the damper 40-1 to the ink I in the head 102. May cause a situation in which the meniscus surface IS of the head 102 is broken. In order to prevent such a situation, the ink circulation method requires a severe management such as adjusting the pressure of the ink I by providing a regulator in the path through which the ink I is circulated. As a result of the installation of sensors and the like, the cost of the entire apparatus that circulates the ink I increases as a result.
- the pump 60 is driven so that the supply chamber 44 of the damper 40-1 becomes a positive pressure so that the sealing body 51 acts in the direction of closing the communication passage 49. Can do. Therefore, in the ink circulation method of the second embodiment, for example, when it is desired to drive the pump 60 strongly in order to circulate the ink I having a large amount of precipitate, the supply chamber 44 of the damper 40-1 has a negative pressure. As compared with the case of driving the pump 60, it is possible to relax the demand for the management of the pressure of the ink I when the pump 60 is driven.
- the pump 60 is driven so that the sealing body 51 of the damper 40-1 closes the communication passage 49, so that the region where the ink I circulates is blocked from the head 102. Therefore, the ink I in the head 102 is not affected. Therefore, the ink circulation method of Embodiment 2 can circulate the ink I without breaking the meniscus surface IS of the ink I of the head 102.
- the supply pipe 10 can supply the ink I from the ink tank 101 to the head 102 by utilizing the water head difference when the inkjet printer 100 is printing. Therefore, the ink circulation method according to the second embodiment does not require the pump 60 to be provided in the supply pipe 10, so that the cost can be reduced.
- the ink circulation method of the second embodiment since the pump 60 is provided only in the circulation pipe 20, even if the pump 60 fails and the ink I cannot be sent out, the ink is utilized through the supply pipe 10 to utilize the water head difference. Thus, the ink can be supplied from the ink tank 101 to the head 102, and the ink jet printer 100 can perform printing.
- FIG. 14 is a diagram illustrating an example of a main part of a circulation mechanism including a damper according to Modification 1 of Embodiment 2.
- the same parts as those of the second embodiment are denoted by the same reference numerals and description thereof is omitted.
- the other end 20b of the circulation pipe 20 is directly connected to the supply port 101a of the ink tank 101 as shown in FIG.
- the ink I is guided from the other end 10b of the supply pipe 10 to the ink tank 101, and the ink I is circulated when printing is stopped, thereby circulating the ink I.
- the sealing body 51 in the ink chamber 45 of the damper 40-1 can be used instead of the three-way valve, so that the cost can be reduced.
- the other end 20b of the circulation pipe 20 is directly connected to the supply port 101a of the ink tank 101, so that not only the ink supply path 2 but also the ink tank. Ink I can be circulated including 101.
- the ink circulation method according to the first modification of the second embodiment can increase the path for circulating the ink I, the ratio of the path for circulating the ink I in the flow path of the ink I can be increased. And the circulation efficiency can be improved.
- FIG. 15 is a diagram illustrating an example of a circulation mechanism including a damper according to the second modification of the second embodiment.
- the same parts as those of the second embodiment are denoted by the same reference numerals and description thereof is omitted.
- the circulation mechanism 1-1 according to the second modification of the second embodiment directly connects one end 10a of the supply pipe 10 to the supply port 101a of the ink tank 101 and connects the other end 10b to the ink of the damper 40. It is directly connected to the inlet 46.
- one end 20a of the circulation pipe 20 is directly connected to the other end 10b of the supply pipe 10, and the other end 20b is connected to the ink tank 101 of the supply pipe 10. It is directly connected to one end 10a.
- the circulation pipe 20 is installed above the supply pipe 10 while being installed in the inkjet printer 100.
- the circulation mechanism 1-1 according to the second modification of the second embodiment is installed in the inkjet printer 100, and the circulation pipe 20 is installed above the supply pipe 10 so that the ink I during circulation is disposed.
- the flowing direction is opposite to that in the second embodiment and the first modification.
- the ink I is led from the other end 10b of the supply pipe 10 to the ink tank 101, and the ink I is circulated when printing is stopped to circulate the ink I.
- the sealing body 51 in the ink chamber 45 of the damper 40-1 can be used instead of the three-way valve, so that the cost can be reduced.
- FIG. 16 is a diagram illustrating an example of a main part of a circulation mechanism including a damper according to the third modification of the second embodiment.
- the same parts as those of the second modification of the second embodiment are denoted by the same reference numerals, and description thereof is omitted.
- the circulation mechanism 1-1 according to Modification 3 of Embodiment 2 directly connects one end 10a of the supply pipe 10 to the supply port 101a of the ink tank 101, and connects the other end 10b to the ink of the damper 40. Directly connected to the inlet 46.
- one end 20a of the circulation pipe 20 is directly connected to the other end 10b of the supply pipe 10, and the other end 20b is directly connected to the supply port 101a of the ink tank 101. is doing.
- the circulation pipe 20 is installed above the supply pipe 10 while being installed in the inkjet printer 100.
- the circulation mechanism 1-1 according to the third modification of the second embodiment is installed in the inkjet printer 100, and the circulation pipe 20 is installed above the supply pipe 10 so that the ink I during circulation is disposed.
- the flowing direction is opposite to that in the second embodiment and the first modification.
- the ink I is led from the other end 10b of the supply pipe 10 to the ink tank 101, and the ink I is circulated when printing is stopped, thereby circulating the ink I.
- the sealing body 51 in the ink chamber 45 of the damper 40-1 can be used instead of the three-way valve, so that the cost can be reduced.
- the ink I is circulated between the head 102 and the ink tank 101 in the standby state.
- the ink I is discharged from the nozzle 102a of the head 102.
- the pump 60 may be driven to cause the circulation mechanism 1 to circulate the ink I between the head 102 and the ink tank 101.
- Embodiment 1 and Embodiment 2 of the present invention have been described, but the present invention is not limited to these.
- the first embodiment, the second embodiment, and the like can be implemented in various other forms, and various omissions, replacements, combinations of changes, and the like are made without departing from the spirit of the invention. Can do.
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Abstract
Description
以下に、本発明の実施形態1に係る循環機構を図面に基づいて詳細に説明する。図1は、実施形態1に係るダンパを備えた循環機構の一例を表す図である。
以下に、本発明の実施形態1の変形例に係る循環機構を図面に基づいて詳細に説明する。図7は、実施形態1の変形例に係るダンパを備えた循環機構の要部の一例を表す図である。なお、図7において、実施形態1と同一部分には、同一符号を付して説明を省略する。
次に、実施形態2にかかるダンパ40-1を備えた循環機構1-1を説明する。図8は、実施形態2に係るダンパを備えた循環機構の一例を表す図である。
以下に、本発明の実施形態2の変形例1に係る循環機構を図面に基づいて詳細に説明する。図14は、実施形態2の変形例1に係るダンパを備えた循環機構の要部の一例を表す図である。なお、図14において、実施形態2と同一部分には、同一符号を付して説明を省略する。
以下に、本発明の実施形態2の変形例2に係る循環機構を図面に基づいて詳細に説明する。図15は、実施形態2の変形例2に係るダンパを備えた循環機構の一例を表す図である。なお、図15において、実施形態2と同一部分には、同一符号を付して説明を省略する。
以下に、本発明の実施形態2の変形例3に係る循環機構を図面に基づいて詳細に説明する。図16は、実施形態2の変形例3に係るダンパを備えた循環機構の要部の一例を表す図である。なお、図16において、実施形態2の変形例2と同一部分には、同一符号を付して説明を省略する。
2 循環路
10 供給管
20 循環用管
20a 一端(インクタンク寄りのインクタンクよりも下流側の端部)
20b 他端(ダンパ寄りのダンパよりも上流側の端部)
40,40-1 ダンパ
42 開閉バルブ
44 供給室
45 インク室
46 インク流入口
47 インク循環口
49 連通通路
49a 開口
50 導出口
51 封止体
52 開放体
60 ポンプ
100 インクジェットプリンタ
101 インクタンク
102 ヘッド
102a ノズル
I インク
IS メニスカス面
Claims (11)
- インクジェットプリンタのインクタンクから水頭差により供給されるインクを、前記インクを吐出するヘッドに供給する水頭差式のダンパにおいて、
前記インクを一旦収容する供給室と、
前記供給室と連通通路を介して連通しかつ前記ヘッドにインクを供給するインク室と、
前記連通通路を閉塞する封止体と、前記インク室を外側から覆うように取り付けられた可撓性フィルムと、前記可撓性フィルムに連動して前記封止体を開放する開放体と、前記開放体を前記インク室の外側方向に付勢する開放ばねとを有し、前記インク室内のインクが減少すると前記開放ばねの付勢力に抗して前記可撓性フィルムが前記インク室の内側に撓むことに連動して前記開放体によって前記封止体を一方側に移動させて前記連通通路を開放させるとともに、前記インク室内のインクが増加すると前記可撓性フィルムが前記インク室の外側に撓むことに連動して前記封止体が他方側に移動し前記連通通路を閉塞させる開閉バルブと、を備え、
前記インクタンク側との間で前記インクを循環する循環用管に前記インクを導く導出口が、前記インク室内に開口している、
ことを特徴とするダンパ。 - 前記インクジェットプリンタに設置された状態で、前記導出口が前記インク室内の前記連通通路の開口よりも下方に配置されることを特徴とする請求項1に記載のダンパ。
- 前記インクジェットプリンタに設置された状態で、前記インクタンクからインクが供給されかつ供給されたインクを前記供給室に導くインク流入口と、前記導出口からの前記インク室内のインクを前記循環用管に導くインク循環口とが上面に設けられることを特徴とする請求項1又は請求項2に記載のダンパ。
- インクを貯留してインクタンクのインクを吐出するヘッドまで供給するためのインク供給路を有し、当該インク供給路の上流側から下流側にインクタンク、ダンパ、及びヘッドをこの順番で配置したインクジェットプリンタの前記ヘッド側と前記インクタンク側との間で前記インクを循環させるインクの循環方法において、
前記ダンパは、
前記インクを一旦収容する供給室と、
前記供給室と連通通路を介して連通しかつ前記ヘッドにインクを供給するインク室と、
前記連通通路を閉塞する封止体と、前記インク室を外側から覆うように取り付けられた可撓性フィルムと、前記可撓性フィルムに連動して前記封止体を開放する開放体と、前記開放体を前記インク室の外側方向に付勢する開放ばねとを有し、前記インク室内のインクが減少すると前記開放ばねの付勢力に抗して前記可撓性フィルムが前記インク室の内側に撓むことに連動して前記開放体によって前記封止体を一方側に移動させて前記連通通路を開放させるとともに、前記インク室内のインクが増加すると前記可撓性フィルムが前記インク室の外側に撓むことに連動して前記封止体が他方側に移動し前記連通通路を閉塞させる開閉バルブと、を備え、
前記ヘッドのノズルとダンパのヘッドにインクを供給する流路とを連通させた状態で、前記ダンパのインク室内に開口した導出口から前記インク室内のインクを前記インク供給路の供給管と前記インクタンクとのうちの一方に導く、
ことを特徴とするインクの循環方法。 - 前記インクタンクと前記ダンパのインク流入口とに前記供給管を直接連結し、前記ダンパのインク循環口と前記供給管に前記インク供給路の循環用管を直接連結し、前記循環用管に設けられたポンプを前記ヘッドのノズル先端に形成されるインクのメニスカス面を維持するように駆動する、
ことを特徴とする請求項4に記載のインクの循環方法。 - 前記インクジェットプリンタに設置された状態で、前記循環用管を前記供給管よりも下方に設置する、
ことを特徴とする請求項5に記載のインクの循環方法。 - インクを貯留してインクタンクのインクを吐出するヘッドまで供給するためのインク供給路を有し、当該インク供給路の上流側から下流側にインクタンク、ダンパ、及びヘッドをこの順番で配置したインクジェットプリンタの前記ヘッド側と前記インクタンク側との間で前記インクを循環させるインクの循環方法において、
前記ダンパは、
前記インクを一旦収容する供給室と、
前記供給室と連通通路を介して連通しかつ前記ヘッドにインクを供給するインク室と、
前記連通通路を閉塞する封止体と、前記インク室を外側から覆うように取り付けられた可撓性フィルムと、前記可撓性フィルムに連動して前記封止体を開放する開放体と、前記開放体を前記インク室の外側方向に付勢する開放ばねとを有し、前記インク室内のインクが減少すると前記開放ばねの付勢力に抗して前記可撓性フィルムが前記インク室の内側に撓むことに連動して前記開放体によって前記封止体を一方側に移動させて前記連通通路を開放させるとともに、前記インク室内のインクが増加すると前記可撓性フィルムが前記インク室の外側に撓むことに連動して前記封止体が他方側に移動し前記連通通路を閉塞させる開閉バルブと、を備え、
前記インク供給路の供給管の前記ダンパ寄りの前記ダンパよりも上流側の端部と、前記供給管の前記インクタンク寄りの前記インクタンクよりも下流側の端部及び前記インクタンクのいずれか一方と、に循環用管が接続されており、
前記封止体が前記連通通路を閉塞した時に、ポンプを駆動させて、前記供給管と前記循環用管との間で前記インクを循環させる、
ことを特徴とするインクの循環方法。 - 前記循環用管は、前記インクタンクに接続される、
ことを特徴とする請求項7に記載のインクの循環方法。 - 前記封止体が前記連通通路を閉塞する方向の前記インクの圧力が、前記供給室に作用するように前記ポンプを駆動させる、
ことを特徴とする請求項7に記載のインクの循環方法。 - 前記供給管は、前記インクジェットプリンタの印刷時に、前記インクタンクから前記インクを水頭差により前記ダンパを介して前記ヘッドに供給し、
前記ポンプは、前記循環用管のみに設けられる、
ことを特徴とする請求項7から請求項9のうちいずれか一項に記載のインクの循環方法。 - 前記ポンプは、前記インクジェットプリンタの印刷停止時に駆動されて、前記インクを循環させる
ことを特徴とする請求項7に記載のインクの循環方法。
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016055548A (ja) * | 2014-09-10 | 2016-04-21 | ローランドディー.ジー.株式会社 | 画像記録装置 |
US20170106657A1 (en) * | 2015-08-28 | 2017-04-20 | Roland Dg Corporation | Damper device, liquid supply system including the same, and inkjet recording device |
JP2020093438A (ja) * | 2018-12-11 | 2020-06-18 | ローランドディー.ジー.株式会社 | インク供給システムおよびインクジェットプリンタ |
JP2021030619A (ja) * | 2019-08-27 | 2021-03-01 | 武藤工業株式会社 | インクジェット記録装置及びインクジェット記録装置に用いられるダンパー内のインク攪拌制御方法 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6836158B2 (ja) * | 2017-02-15 | 2021-02-24 | ブラザー工業株式会社 | 画像形成装置および情報通知方法 |
WO2018199899A1 (en) * | 2017-04-24 | 2018-11-01 | Hewlett-Packard Development Company, L.P. | Deformable fluid supply |
DE202017003026U1 (de) * | 2017-06-09 | 2017-08-31 | Jan Franck | Vorrichtung zum Spülen oder Betreiben eines mit einem vorgeschalteten Druckdämpfer ausgerüsteten Tinten- oder Tintenstrahl-Druckkopfs |
JP7102135B2 (ja) * | 2017-12-07 | 2022-07-19 | キヤノン株式会社 | 液体吐出ヘッドおよび液体吐出装置 |
JP7167622B2 (ja) * | 2018-10-22 | 2022-11-09 | 京セラドキュメントソリューションズ株式会社 | 連結構造及び画像形成装置 |
JP7138059B2 (ja) * | 2019-01-31 | 2022-09-15 | 理想科学工業株式会社 | 撹拌装置および印刷装置 |
WO2023242789A1 (en) * | 2022-06-16 | 2023-12-21 | System Ceramics S.P.A. | Plotter for inkjet printing |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005059476A (ja) * | 2003-08-18 | 2005-03-10 | Dainippon Printing Co Ltd | インク供給装置 |
WO2005075202A1 (ja) * | 2004-02-03 | 2005-08-18 | Seiko Epson Corporation | 圧力制御弁ユニット及び液体噴射装置 |
JP2006088564A (ja) * | 2004-09-24 | 2006-04-06 | Fuji Xerox Co Ltd | インクジェット記録装置 |
JP2009279932A (ja) * | 2008-04-23 | 2009-12-03 | Roland Dg Corp | インクジェット式記録装置 |
JP2011046070A (ja) * | 2009-08-26 | 2011-03-10 | Mimaki Engineering Co Ltd | 液体封止用膜部材およびそれを用いた調圧供給装置 |
JP2011156859A (ja) * | 2010-01-08 | 2011-08-18 | Mimaki Engineering Co Ltd | インク供給システム及びインクジェットプリンタ |
JP2012232595A (ja) * | 2012-07-30 | 2012-11-29 | Mimaki Engineering Co Ltd | インクジェット記録装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3757963B2 (ja) * | 2002-11-12 | 2006-03-22 | セイコーエプソン株式会社 | 機能液滴吐出ヘッドの吸引装置、並びに液滴吐出装置、電気光学装置の製造方法、電気光学装置、および電子機器 |
US7331664B2 (en) * | 2004-10-29 | 2008-02-19 | Hewlett-Packard Development Company, L.P. | Ink delivery system and a method for replacing ink |
JP4816261B2 (ja) * | 2006-06-05 | 2011-11-16 | 富士ゼロックス株式会社 | 液滴吐出装置 |
US7845784B2 (en) * | 2006-12-28 | 2010-12-07 | Kabushiki Kaisha Toshiba | Ink supplying mechanism and ink supplying method |
JP5489629B2 (ja) * | 2008-12-05 | 2014-05-14 | キヤノン株式会社 | 記録装置 |
JP2011073201A (ja) * | 2009-09-29 | 2011-04-14 | Brother Industries Ltd | インク充填装置 |
JP2011235506A (ja) * | 2010-05-10 | 2011-11-24 | Roland Dg Corp | インクジェット式記録装置用インクカートリッジおよびインクジェット式記録装置 |
WO2012030385A1 (en) * | 2010-08-30 | 2012-03-08 | Anajet, Inc. | Inkjet printer ink delivery system |
JP5449296B2 (ja) * | 2011-11-01 | 2014-03-19 | キヤノン株式会社 | インクジェット装置およびインクジェットヘッドユニット |
JP6115029B2 (ja) * | 2012-05-31 | 2017-04-19 | セイコーエプソン株式会社 | 液体収容容器の製造方法 |
JP6244633B2 (ja) * | 2013-03-01 | 2017-12-13 | セイコーエプソン株式会社 | 液体噴射装置 |
-
2015
- 2015-05-15 US US15/310,788 patent/US9855762B2/en active Active
- 2015-05-15 CN CN201580025401.5A patent/CN106457838B/zh active Active
- 2015-05-15 JP JP2016519415A patent/JP6590797B2/ja active Active
- 2015-05-15 WO PCT/JP2015/064115 patent/WO2015174535A1/ja active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005059476A (ja) * | 2003-08-18 | 2005-03-10 | Dainippon Printing Co Ltd | インク供給装置 |
WO2005075202A1 (ja) * | 2004-02-03 | 2005-08-18 | Seiko Epson Corporation | 圧力制御弁ユニット及び液体噴射装置 |
JP2006088564A (ja) * | 2004-09-24 | 2006-04-06 | Fuji Xerox Co Ltd | インクジェット記録装置 |
JP2009279932A (ja) * | 2008-04-23 | 2009-12-03 | Roland Dg Corp | インクジェット式記録装置 |
JP2011046070A (ja) * | 2009-08-26 | 2011-03-10 | Mimaki Engineering Co Ltd | 液体封止用膜部材およびそれを用いた調圧供給装置 |
JP2011156859A (ja) * | 2010-01-08 | 2011-08-18 | Mimaki Engineering Co Ltd | インク供給システム及びインクジェットプリンタ |
JP2012232595A (ja) * | 2012-07-30 | 2012-11-29 | Mimaki Engineering Co Ltd | インクジェット記録装置 |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016055548A (ja) * | 2014-09-10 | 2016-04-21 | ローランドディー.ジー.株式会社 | 画像記録装置 |
US20170106657A1 (en) * | 2015-08-28 | 2017-04-20 | Roland Dg Corporation | Damper device, liquid supply system including the same, and inkjet recording device |
US9950534B2 (en) * | 2015-08-28 | 2018-04-24 | Roland Dg Corporation | Damper device, liquid supply system including the same, and inkjet recording device |
JP2020093438A (ja) * | 2018-12-11 | 2020-06-18 | ローランドディー.ジー.株式会社 | インク供給システムおよびインクジェットプリンタ |
JP7204462B2 (ja) | 2018-12-11 | 2023-01-16 | ローランドディー.ジー.株式会社 | インク供給システムおよびインクジェットプリンタ |
JP2021030619A (ja) * | 2019-08-27 | 2021-03-01 | 武藤工業株式会社 | インクジェット記録装置及びインクジェット記録装置に用いられるダンパー内のインク攪拌制御方法 |
JP7312647B2 (ja) | 2019-08-27 | 2023-07-21 | 武藤工業株式会社 | インクジェット記録装置及びインクジェット記録装置に用いられるダンパー内のインク攪拌制御方法 |
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US20170087868A1 (en) | 2017-03-30 |
JP6590797B2 (ja) | 2019-10-16 |
CN106457838A (zh) | 2017-02-22 |
JPWO2015174535A1 (ja) | 2017-04-20 |
US9855762B2 (en) | 2018-01-02 |
CN106457838B (zh) | 2018-04-03 |
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