CN109153265A - For the ink delivery system with constant pressure to multiple print heads supply ink - Google Patents
For the ink delivery system with constant pressure to multiple print heads supply ink Download PDFInfo
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- CN109153265A CN109153265A CN201780027028.6A CN201780027028A CN109153265A CN 109153265 A CN109153265 A CN 109153265A CN 201780027028 A CN201780027028 A CN 201780027028A CN 109153265 A CN109153265 A CN 109153265A
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- ink
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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
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- Ink Jet (AREA)
Abstract
A kind of ink delivery system for ink-jet printer, comprising: positive ink line, with controlled positive ink pressure；Negative ink line, with controlled negative ink pressure；One or more print modules are interconnected between positive ink line and negative ink line via corresponding arrival line and egress line.Each print module includes: print head；Control valve is located at the ingress port of print module, for controlling the ink pressure in print head；Ink pressure sensor, for sensing the ink pressure in print module；And controller, for receiving the feedback from pressure sensor and controlling control valve.During printing, ink pressure sensor, controller and control valve cooperation are controlling the back pressure in print head within the scope of predetermined back pressure.
Description
Invention field
The present invention relates to the ink delivery systems for ink-jet printer.It, which is developed, is mainly used in relative constant pressure
Ink is supplied to multiple print heads under power.
Background of invention
UsingThe ink-jet printer of technology is commercially useful for a variety of different layouts, including small
Type office family office (" SOHO ") printer, label machine and wide format printer.Printer is usual
Inkjet print head including one or more fixations, the inkjet print head are that user is replaceable.For example, SOHO printer packet
The replaceable multi-color printing head of single user is included, high speed label printer includes can along multiple users that medium feed direction is aligned
The monochrome printhead of replacement, and wide format printer includes the replaceable printing of multiple users in the arrangement that is overlapping
Head, to cross over wide format page width.
It may be problematic to multiple print heads supply ink as the quantity of print head increases.In order to keep skyer
Quality is printed, each print head should receive the ink of about the same ink pressure from common ink tank.In US8,480,211
A kind of system for multiple inkjet print heads supply ink is described, content is incorporated herein by reference.In existing skill
In the system of art, the common ink storage tank for being combined with control pressurer system (for example, float valve adjuster) supplies ink via ink
Line is answered to be supplied to multiple print heads.When print head does not print, returns to ink line and be able to carry out various refillings (priming), row
Black (de-priming) and clear operation.However, being the problem of ink delivery system described in 480,211 in US8, not
All print heads all inevitably receive identical ink pressure.The print head farthest from ink storage tank is beaten by closer to ink storage tank
Print the influence of pressure drop on head.Accordingly, there exist the trend that different ink pressures are undergone for print head, especially beat when in full bleeding
When print or when print head different in system has different ink demands.
It is desirable to provide a kind of ink delivery system, the ink delivery system is with reliable and high degree of controlled hydrostatic ink pressure
Power supplies ink to multiple print heads.It would also be desirable to provide a kind of scalable ink delivery system, may be adapted to beat to multiple
It prints head and supplies ink, the quantity of print head can change from print system to print system.
Summary of the invention
In the first aspect, a kind of ink delivery system for ink-jet printer is provided, which includes:
Positive ink line, with controlled positive ink pressure；
Negative ink line, with controlled negative ink pressure；
One or more print modules are interconnected in positive ink line and negative ink via corresponding arrival line and egress line
Between line, each print module includes:
It is connected to the ingress port of arrival line；
It is connected to the outlet port of egress line；
The print head interconnected between ingress port and outlet port；
Control valve is located at ingress port, for controlling the ink pressure in print head；
Ink pressure sensor, for sensing the ink pressure in print module；With
Controller feedbacks and controls control valve from pressure sensor for receiving；
Wherein, during printing, ink pressure sensor, controller and control valve cooperation are with by the back pressure control in print head
System is within the scope of predetermined back pressure.
The present invention is advantageously each print head in system and provides local pressure control.In this way, increase printing
The quantity of head will not influence the degree of the control of the pressure in system.In addition, print head is interconnected in positive ("high") and born by the present invention
Between (" low ") pressure oil line of ink marker.This makes it possible to go out pressure using relatively low tolerance valve in the high-pressure side of print head
The Partial controll of color；All valve regulateds are all by the feedback from ink pressure sensor come dynamic regulation.In addition, just
The use of pressure line provides the head of enough pressure for multiple print heads, and not will receive in system and print during printing
The influence of the upper pressure drop of any one of head.In from detailed description below, what these and other advantages will be apparent.
Preferably, each print module includes: the supply module with ingress port and outlet port；And print head.
Preferably, print head is comprised in the replaceable Write head container for being releasably connected to supply module.Equally, often
A print module can be replaceable units, which can be via suitable at ingress port and outlet port
Device is connect easily to separate from arrival line and egress line.
Preferably, supply module includes:
Inlet module comprising ingress port, control valve and pressure sensor；With
Outlet module comprising outlet port.
In general, supply module further includes suitable driving and the logic circuit for controlling the operation of print head.For example, for
Answering module may include print engine controller chip, for controlling by the received corresponding print head of supply module.
Preferably, inlet module further includes the air intake and corresponding air for introducing air into print head
Valve.Air intake and air valve can be to print head ventings, such as when needing Write head container to replace.For example, in US8,845,
The operation of the air intake and air valve for controlling print head venting is described in 083, US8,845,083 content is by drawing
With being incorporated herein.
Preferably, outlet module includes shut-off valve.Outlet module can also include current limiter (for example, aperture), current limiter
Back pressure is provided in print head together with negative ink line.In some embodiments, current limiter can be incorporated into shut-off valve.
Outlet module can also include for example for inhibiting compliant mechanism (compliance) (example of ink pressure fluctuations
Such as, air chamber or flexible wall room).
Preferably, ink delivery system further includes the ink reservoir for being connected to positive ink line and negative ink line, so that ink
It is recycled to each print head from ink reservoir via positive ink line, and then returns to ink reservoir via negative ink line.
Preferably, ink delivery system further includes ink conveyor module, which, which has, is connected to positive ink
The main track connector of line, the negative wire connector for being connected to negative ink line and the supply connection for being connected to whole ink charging-tank
Device, wherein the ink for being transported to supply connector is received by ink reservoir and via corresponding positive pressure draught control system and negative pressure
Regulating system is assigned to main track connector and negative wire connector.
Positive pressure draught control system and negative pressure draught control system are pre- in positive ink line and negative ink line advantageous by setting
Ink pressure is determined to enable pressure overall control at print head, while realizing that fine local pressure controls using control valve.
Therefore, it is not required to each control valve operates under high tolerance, also, in addition, any lag in control valve and pressure sensor
It is not significantly affected by print head back pressure.
Preferably, positive pressure draught control system and negative pressure draught control system include that corresponding adjust pumps.
Preferably, ink conveyor module further includes one or more components selected from the group being made up of:
Pressure sensor is used to sense the positive ink pressure in positive pressure draught control system；
Negative pressure force snesor is used to sense the negative ink pressure in negative pressure draught control system；
Positive pressure draught control mechanism；
Negative pressure draught control mechanism；
Compliant mechanism is used for surge suppressing；
Ink filter；
Ink temperature sensors；
Ventilation opening；
Ink liquid level sensor is used to sense the ink liquid level in ink reservoir；
Pump is refilled, is located between supply connector and ink reservoir；With
Ink deaerator.
Preferably, ink delivery system further includes the whole ink charging-tank for being connected to supply connector.Ink conveys mould
Block is usually self-contained unit, may be connected to whole ink power supply unit, positive ink line and negative ink line.In this way, it beats
Impression block and ink conveyor module can be used as external member offer, allow users to the printing system that building is suitble to their demands of individuals
System.
In one embodiment, the positive ink pressure in positive ink line is by including that the normal pressure circuit of ink reservoir is controlled
System, and the negative ink pressure in negative black pipeline is controlled by the negative pressure circuit including ink reservoir, wherein positive ink line connects
To normal pressure circuit, and negative ink line is connected to negative pressure circuit.
Preferably, ink delivery system includes multiple print heads (for example, 2 to 50 print heads), wherein positive ink line is
For the common positive ink line of each print head, and negative ink line is the common negative ink line for each print head.
In second aspect, a kind of method for controlling the back pressure in one or more print heads, this method packet are provided
Include following steps:
Ink is supplied to each print head via the positive ink line with controlled positive ink pressure；
Via the negative ink line with controlled negative ink pressure from each print head picks up ink；With
The back in each print head is controlled by the flowing of the Partial controll ink at the normal pressure side of each print head
Pressure.
Preferably, back pressure is controlled via control valve, which is integrated in the printing for each corresponding print head
In module.
Preferably, control valve is controlled by controller, and controller receives feedback from the ink pressure sensor in print module.
Preferably, ink is supplied to positive ink line via normal pressure circuit from ink reservoir, and ink is from each printing
Head is sucked back into ink reservoir via negative pressure circuit.
In a third aspect, a kind of external member is provided, which includes:
(A) ink conveyor module, the ink conveyor module include:
Connector is supplied, is used to be connected to whole ink power supply unit；
Ink reservoir is used to receive ink from supply connector；
Main track connector is used to be connected to positive ink line；
Negative wire connector is used to be connected to negative ink line；
Positive pressure draught control system is used to adjust the ink pressure between ink reservoir and main track connector；With
Negative pressure draught control system is used to adjust the ink pressure between ink reservoir and negative wire connector；With
(B) one or more print modules, each print module include:
Ingress port；
Outlet port；
Print head is interconnected between ingress port and outlet port；
Control valve is located at ingress port, for controlling the ink pressure in print head；
Ink pressure sensor, for sensing the ink pressure in print module；With
Controller, for receiving the feedback from pressure sensor and controlling control valve.
Brief description
Embodiment of the present invention is only described by way of example with reference to the drawings, in the accompanying drawings:
Fig. 1 schematically shows ink supply system according to the present invention；
Fig. 2 schematically shows the ink conveyor modules for being connected to positive ink line and negative ink line；
Fig. 3 schematically shows the print module interconnected between positive ink line and negative ink line；With
Fig. 4 is the perspective view of print module.
The detailed description of invention
With reference to Fig. 1, it is schematically shown that ink delivery system 1, ink delivery system 1 include being connected to ink conveying mould
The positive ink line 3 (" right path ") and negative ink line 5 (" negative rail ") of block 7, which adjusts positive ink line and negative ink
Ink pressure in each of line.Multiple print modules 9 are interconnected in positive oil via corresponding arrival line 10 and egress line 12
Between the line of ink marker 3 and negative ink line 5.Although three print modules 9 are shown in FIG. 1, but it is to be understood that any amount of to beat
Impression block can interconnect between positive ink line 3 and negative ink line 5.Print module 9 can be physically with the cloth that is overlapping
Positioning is set, to extend across print zone medium more broader than single print module.In this way it is possible to using multiple printings
Module 9 is used to print to the width with greater than about 8 inches (for example, at least 16 inches, at least 32 inches or at least 40 inches)
Print media on.
Referring now to Fig. 3 and Fig. 4, single print module 9 includes supply module 14 and is releasably connected to supply module
Write head container 16.Write head container 16 include for printing to the inkjet print head 17 on print media, and can be as this
Colour or monochrome printhead known to field (for example, double-colored or four-color printhead).For example, print head can be being total to for applicant
With entitled " the MONOCHROME INKJET PRINTHEAD CONFIGURED FORHIGH-SPEED PRINTING " submitted
Type described in the application of (attorney docket RRG001US), content of the application are incorporated herein by reference.In order to clear
A kind of ink delivery system of the ink for color is described herein in Chu Qijian, however, it is understood that multiple ink convey
System can be used for the supply of the ink of multiple color.
Supply module 14 includes accommodating the driving for being used for print head 17 and logic circuit (for example, having print engine control
One or more PCB of device chip, driving transistor etc.) main body 20 and inlet module 22 and outlet module 24.Entrance
Module 22 has the ingress port 26 for being connected to arrival line 10, and outlet module 24 has the outlet end for being connected to egress line 12
Mouth 28.Suitable print module connector 29 allows easily to replace entire print module when needed.
Write head container 16 is fluidly connected to supply module 14 by print head inlet coupling 30 and outlet coupler 32.
Print head inlet coupling 30 and outlet coupler 32 are usually Rapid-connect coupler, are allowed to easily from each printing
Module 9 removes used Write head container 16, and is replaced by user with new Write head container.
Inlet module 22 includes for providing the Partial controll of the ink pressure in print head 17 for each print module 9
All necessary parts.Therefore, each print module 9 is provided to the independent control in the part of the ink pressure in its corresponding print head 17
System allows local ink pressure automatically and fluctuates and finely tune in response to local pressure.
Inlet module 22 includes control valve 33, which moves in response to the feedback from ink pressure sensor 35
Ink pressure is adjusted to state, ink pressure sensor 35 senses the ink pressure in the downstream of control valve.Ink pressure sensor 35
Feedback is provided to controller 37 (for example, microprocessor), controller 37 controls the variable position of control valve 33 again, to print
Ink pressure in first 17 is adjusted within the scope of predetermined back pressure.Significantly, by be connected to positive ink line 3 and negative ink line 5 it
Between (overall control of ink pressure has been provided in this), control valve 33 allow with minimum lag finely control ink pressure.Cause
This, the relatively large adjusting of control valve 33 only generates the variation in relatively small ink pressure in print module 9.
In addition, inlet module 22 includes the air intake 40 and corresponding air valve for introducing air into print head
42, which can cut off the air stream entered in print head.Air valve 42 is usually solenoid valve, can be by controlling
Device 37 controls.For most of operations, air valve 42 is closed.However, when needing to 16 venting of print head (for example, for replacing
Write head container 17) when, air valve 42 is opened, and wherein control valve 33 completely closes, to draw air into print head 16 simultaneously
Remove ink.
Outlet module 24 includes shut-off valve 44, and print module 9 is isolated for combining when needed with control valve 33.Shut-off valve
44 combine the current limiter in the form of aperture, and current limiter limitation ink flows and combined control print head 17 with negative ink line 5
In back pressure.
In the embodiment gone out shown in fig. 3, both inlet module 22 and outlet module 24 respectively include compliant mechanism
45 (for example, air chamber or flexible wall rooms), the compliant mechanism 45 is close to corresponding ingress port 26 and outlet port 28, for pressing down
Ink pressure fluctuations processed or " spike ".
Return to Fig. 1, ink conveyor module 7 includes intermediate ink reservoir 50, and the intermediate ink reservoir 50 is via with normal pressure
The positive pressure draught control system of the form in circuit 52 is connected to positive ink line 3.Equally, intermediate ink reservoir 50 is returned via with negative pressure
The negative pressure draught control system of the form on road 54 is connected to negative pressure ink line.Intermediate ink reservoir is via for example snakelike emission path
(not shown) leads to atmosphere.Normal pressure circuit 52 adjusts the positive ink pressure in positive ink line 3, and negative pressure circuit 54 adjusts and bears
Negative ink pressure in ink line 5.During printing, ink is recycled in positive ink line 3 from intermediate ink reservoir 50, by every
A print module 8, and intermediate ink reservoir is returned to via negative ink line 5.
Intermediate ink reservoir 50 refills pump 58 from whole 56 makeup oil of ink charging-tank via in ink conveyor module 7
Ink.Intermediate ink reservoir 50 has suitable ink sensor (not shown), for detecting low ink liquid level, and mentions when needed
Pump 58 is refilled for activating for feedback.
Ink conveyor module 7 is usually the self-contained unit with various external connectors: supply connector 61 is used for
Pump 58 will be refilled and be connected to whole ink charging-tank 56；Overflow connector 63 is used to refill pump and is connected to overflow tank
(being presently shown)；Main track connector 65 is used to positive ink line 3 being connected to normal pressure circuit 52；With negative wire connector 67,
For negative ink line 5 to be connected to negative pressure circuit 54.
Turning now to Fig. 2, the internal part of ink conveyor module 7 is illustrated in greater detail.Particularly, normal pressure circuit 52
Including positive loop pump 70, which pumps ink from intermediate ink reservoir 50 towards positive pressure draught control mechanism 72.Just return
Ink between road pump 70 and positive pressure draught control mechanism 72 is maintained at the normal pressure through adjusting, and positive ink line 3 is returned from normal pressure
The adjusting part 75 on road 52 is tapped via main track connector 65.In the downstream of positive pressure draught control mechanism 72, ink is in and does not adjust
Pressure, and side indicated by arrow P returns back up to intermediate ink reservoir 50 in through Fig. 4.
Similarly, negative pressure circuit 54 includes negative loop pump 80, which will be oily by negative pressure draught control mechanism 82
Ink pumps from intermediate ink reservoir 50 and into the pump intake of negative loop pump.Between negative pressure draught control mechanism 82 and negative loop pump 80
Ink be maintained at the negative pressure of adjusting, and negative ink line 5 joins from the adjusting part 85 in negative pressure circuit 54 via negative wire
Connect the tap of device 67.In the downstream of negative loop pump 80, ink is in unadjusted pressure, and by indicated by arrow N in Fig. 4
Side return back up to intermediate ink reservoir 50.
In each of normal pressure circuit 52 and negative pressure circuit 54, pressure sensor 91 is to corresponding normal pressure tune
It saves device 72 and negative pressure draught control mechanism 82 provides feedback.Therefore, the adjusting part 75 and 85 in each circuit is kept at most preferably just
Under pressure and negative pressure.Each of normal pressure circuit 52 and negative pressure circuit 54 further include for from ink filter particle
Filter and compliant mechanism for inhibiting ink pressure fluctuations.Ink conveyor module 7 can also include degasser, such as this field
In it is known, for removing bubble from ink before ink delivery to print module 9.
Of course it is to be understood that ink conveyor module 7 may include that alternative positive pressure draught control system and negative pressure are adjusted
System.For example, normal pressure circuit 52 and negative pressure circuit 54 can be not present, and ink conveyor module 7 can provide centre
The inline adjusting of ink pressure between ink reservoir 50 and main track connector 65 and negative wire connector 67.
During printing, the ink under the normal pressure through adjusting is supplied to positive ink line 3.Each print module 9
From positive 3 picks up ink of ink line, and ink is fed back into ink conveying mould via negative ink line 5 under the negative pressure through adjusting
Block 7.By keeping the control to opposite normal pressure and negative pressure in positive ink line 3 and negative ink line 5, in each print module
Relative constant back pressure is provided at 9.The additional Partial controll of back pressure in each print head 17 by each print module 9 input
Control valve 33 in module 22 provides.Using the feedback from ink pressure sensor 35, control valve 33 be it is adjustable, with protect
Hold best back pressure.When pressure is too high, control valve 33 is slightly closed；When hypotony, control valve 33 is slightly opened.
Therefore, the present invention provides the fabulous control to the print head back pressure in multiple print heads 17, multiple print heads
17 are supplied with the ink from common ink reservoir.It adjusts via the integral pressure of ink conveyor module 7 and is beaten via each
The combination that the local pressure of control valve 33 in impression block 9 is adjusted ensures that there is each print head 17 enough ink pressures to be used for
Different ink demands, and further ensure that each print head in system is maintained under relative constant back pressure.In addition, oily
Black transportation system 1 is scalable for being used together with any number of print module 9 (for example, the print module from 1 to 50).
It should be understood, of course, that the present invention is only described by way of example, and can make within the scope of the invention
The modification of details, the scope of the present invention are defined in the following claims.
Claims (16)
1. a kind of ink delivery system for ink-jet printer, comprising:
Positive ink line, the positive ink line have controlled positive ink pressure；
Negative ink line, the negative ink line have controlled negative ink pressure；
One or more print modules, one or more print module are interconnected via corresponding arrival line and egress line
Between the positive ink line and the negative ink line, each print module includes:
Ingress port, the ingress port are connected to the arrival line；
Outlet port, the outlet port are connected to the egress line；
Print head, the print head are interconnected between the ingress port and the outlet port；
Control valve, the control valve are located at the ingress port, for controlling the ink pressure in the print head；
Ink pressure sensor, the ink pressure sensor are used to sense the ink pressure in the print module；With
Controller, the controller feedback and control the control valve from the pressure sensor for receiving；
Wherein, during printing, the ink pressure sensor, the controller and control valve cooperation are with by the printing
Back pressure in head controls within the scope of predetermined back pressure.
2. ink delivery system according to claim 1, wherein each print module includes:
Supply module with the ingress port and the outlet port；With
The print head.
3. ink delivery system according to claim 2, wherein the print head, which is comprised in, is releasably connected to institute
It states in the replaceable Write head container of supply module.
4. ink delivery system according to claim 2, wherein the supply module includes:
Inlet module, the inlet module include the ingress port, the control valve and the pressure sensor；With
Outlet module, the outlet module include the outlet port.
5. ink delivery system according to claim 3, wherein the inlet module further includes for introducing air into
Air intake and corresponding air valve in the print head.
6. ink delivery system according to claim 3, wherein the outlet module further includes shut-off valve and/or current limliting
Device.
7. ink delivery system according to claim 1 further includes ink reservoir, the ink reservoir be connected to it is described just
Ink line and the negative ink line, so that ink is recycled to each print head via the positive ink line from the ink reservoir,
And the ink reservoir then is returned to via the negative ink line.
8. ink delivery system according to claim 6 further includes ink conveyor module, the ink conveyor module has
It is connected to the main track connector of the positive ink line, is connected to the negative wire connector of the negative ink line and for being connected to entirety
The supply connector of ink charging-tank, wherein be transported to it is described supply connector ink by the ink reservoir receive and via
Corresponding positive pressure draught control system and negative pressure draught control system are assigned to the main track connector and the negative wire connector.
9. ink delivery system according to claim 7, wherein the positive pressure draught control system and the negative pressure are adjusted
System includes that corresponding adjust pumps.
10. ink delivery system according to claim 8, wherein the ink conveyor module further includes selected from by following
One or more components of the group of composition:
Pressure sensor, the pressure sensor are used to sense the positive ink pressure in the positive pressure draught control system；
Negative pressure force snesor, the negative pressure force snesor are used to sense the negative ink pressure in the negative pressure draught control system；
Positive pressure draught control mechanism；
Negative pressure draught control mechanism；
Compliant mechanism, the compliant mechanism are used for surge suppressing；
Ink filter；
Ink temperature sensors；
Ventilation opening；
Ink liquid level sensor, the ink liquid level sensor are used to sense the ink liquid level in the ink reservoir；
Pump is refilled, the pump that refills is located between the supply connector and the ink reservoir；With
Ink deaerator.
11. ink delivery system according to claim 6 further includes the whole oil for being connected to the supply connector
Black charging-tank.
12. ink delivery system according to claim 1, including multiple print heads, wherein the positive ink line is to be used for
The common positive ink line of each print head, and the negative ink line is the common negative ink line for each print head.
13. a kind of method for controlling the back pressure in one or more print heads, the described method comprises the following steps:
Ink is supplied to each print head via the positive ink line with controlled positive ink pressure；
Via the negative ink line with controlled negative ink pressure from each print head picks up ink；With
By the flowing of the Partial controll ink at the normal pressure side of each print head come the back in each print head of Partial controll
Pressure.
14. according to the method for claim 12, wherein the back pressure is controlled via control valve, and the control valve is integrated
In the print module for each corresponding print head.
15. according to the method for claim 13, wherein the control valve is controlled by controller, and the controller is from described
Ink pressure sensor in print module receives feedback.
16. a kind of external member, comprising:
(A) ink conveyor module, the ink conveyor module include:
Connector is supplied, the supply connector is for being connected to whole ink power supply unit；
Ink reservoir, the ink reservoir are used to receive ink from the supply connector；
Main track connector, the main track connector is for being connected to positive ink line；
Negative wire connector, the negative wire connector is for being connected to negative ink line；
Positive pressure draught control system, the positive pressure draught control system is for adjusting between the ink reservoir and the main track connector
Ink pressure；With
Negative pressure draught control system, the negative pressure draught control system is for adjusting between the ink reservoir and the negative wire connector
Ink pressure；With
(B) one or more print modules, each print module include:
Ingress port；
Outlet port；
Print head, the print head are interconnected between the ingress port and the outlet port；
Control valve, the control valve are located at the ingress port, for controlling the ink pressure in the print head；
Ink pressure sensor, the ink pressure sensor are used to sense the ink pressure in the print module；With
Controller, the controller is for receiving the feedback from the pressure sensor and controlling the control valve.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201662330785P | 2016-05-02 | 2016-05-02 | |
| US62/330,785 | 2016-05-02 | ||
| PCT/EP2017/058893 WO2017190934A1 (en) | 2016-05-02 | 2017-04-12 | Ink delivery system for supplying ink to multiple printheads at constant pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109153265A true CN109153265A (en) | 2019-01-04 |
| CN109153265B CN109153265B (en) | 2020-08-21 |
Family
ID=58645014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780027028.6A Active CN109153265B (en) | 2016-05-02 | 2017-04-12 | Ink delivery system for supplying ink to a plurality of printheads at a constant pressure |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP3452292B1 (en) |
| JP (1) | JP2019514732A (en) |
| CN (1) | CN109153265B (en) |
| AU (1) | AU2017259594B2 (en) |
| SG (1) | SG11201807298VA (en) |
| WO (1) | WO2017190934A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111409364A (en) * | 2019-01-08 | 2020-07-14 | 高山技术株式会社 | Pressure regulating device of ink-jet printer and regulating method thereof |
| WO2022066171A1 (en) * | 2020-09-25 | 2022-03-31 | Hewlett-Packard Development Company, L.P. | Print agent delivery systems |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2964037T3 (en) * | 2020-03-13 | 2024-04-03 | United Barcode Systems S L | System for regulating the supply of the ink injectors of a print head and printing equipment that includes it |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109153265B (en) | 2020-08-21 |
| AU2017259594A1 (en) | 2018-10-25 |
| JP2019514732A (en) | 2019-06-06 |
| SG11201807298VA (en) | 2018-11-29 |
| AU2017259594B2 (en) | 2019-05-09 |
| EP3452292A1 (en) | 2019-03-13 |
| WO2017190934A1 (en) | 2017-11-09 |
| EP3452292B1 (en) | 2021-06-16 |
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