CN103057272B - Ink supply device and ink supply method for inkjet recording apparatus - Google Patents
Ink supply device and ink supply method for inkjet recording apparatus Download PDFInfo
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- CN103057272B CN103057272B CN201210355366.1A CN201210355366A CN103057272B CN 103057272 B CN103057272 B CN 103057272B CN 201210355366 A CN201210355366 A CN 201210355366A CN 103057272 B CN103057272 B CN 103057272B
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- ink
- print cartridge
- flow path
- gun
- recording apparatus
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Classifications
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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
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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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- 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
- B41J2/19—Ink jet characterised by ink handling for removing air bubbles
Abstract
Disclosed is an ink supply device (8) of an inkjet recording apparatus (10) including a first tank (81) which pools ink which is to be supplied to heads (3), a second tank (82) which is provided in a middle of a path to the heads (3) from the first tank (81), a first ink feed unit (814) which feeds the ink to the second tank (82) from the first tank (81), a second ink feed unit (829) which feeds the ink to the heads side from the second tank (82) and a first ink flow path (811) which connects the first tank (81) and the second tank (82). In the ink supply device (8), an end section of the first ink flow path (811) in the second tank side is connected to the second tank (82) so that the ink flows along an inner wall of the second tank (82).
Description
Technical field
The present invention relates to the ink-feeding device from ink to ink gun and the ink supply method that supply that ink-jet printer possesses.
Background technology
Ink-jet printer, as tape deck, can form image on the various recording medium such as plain paper, plastic tab.Ink-jet printer has the ink gun from nozzle bore ejection ink, by spraying fine droplets ink from the nozzle bore of ink gun to recording medium, can form image on the recording medium.
Ink gun is connected with the print cartridge storing ink, supplies ink from this print cartridge to ink gun.
Now, if be mixed into dissolved gas or bubble in the ink, then the inner volume that occurs changes, this becomes the reason of the ink gun deleterious out of ink of ejection drop, so, existing ink-jet printer is provided with the degassed module of carrying out vacuum outgas between print cartridge and ink gun, is used for removing the gas (Figure 11 for example, referring to patent document 1) in ink.
Patent document 1:(Japan) JP 2011-079295 publication
But, although described in above-mentioned patent document 1, the degassed module that is arranged at existing ink-jet printer can remove dissolved gas contained in ink, can not carry out degassed to visible bubble, thus there is the problem of this bubble flow to ink gun side.
Summary of the invention
The object of the present invention is to provide ink-jet recording apparatus and the ink supply method thereof that effectively can remove visible bubble in ink.
In order to solve the problem, the invention provides a kind of ink-jet recording apparatus and ink supply method thereof, this ink-jet recording apparatus has: the first print cartridge, and store the ink to ink gun supply, this ink gun sprays ink to recording medium; Second print cartridge, is arranged on the way, path from described first print cartridge to described ink gun; First liquor charging portion, from described first print cartridge to described second print cartridge ink delivery; Second liquor charging portion, from described second print cartridge to described ink gun side ink delivery; First ink flow path, connect described first print cartridge and described second print cartridge, it is characterized in that, the end of the described second print cartridge side of described first ink flow path is connected with this second print cartridge, to make ink move via the internal side wall surface current of this second print cartridge, described second liquor charging portion is from the bottom ink delivery of described second print cartridge.
And the present invention also can be configured to: the portions incline being at least supplied to ink from described first ink flow path making the internal side wall of described second print cartridge, therein side wall surface flows to make ink.
And the present invention also can be configured to: described second print cartridge is formed as funnel-form, supply ink from described first ink flow path to make the ink mode dynamic at the private side wall upper reaches of described second print cartridge.
And the present invention also can be configured to: at least have plural described first print cartridge, and have connection switching part, this connection switching part alternatively switches the connection with described second print cartridge from each first print cartridge.
In addition, the present invention also can be configured to: have degasser ink being carried out to vacuum outgas, and this degasser is arranged on the way, path from described second print cartridge to described ink gun.
The present invention is being provided with the second print cartridge from the first print cartridge to way, the path of ink gun, carries out providing ink from the first print cartridge to make ink via the mode that the internal side wall surface current of the second print cartridge is dynamic to the second print cartridge, from the bottom of the second print cartridge to ink gun ink delivery.
Therefore, because move to the ink of the second print cartridge supply along its internal side wall surface current, thus with liquid level conflict inject ink situation compared with, ink can be made to inject reposefully, thus reduce the generation of bubble.And, even if when being mixed into bubble, be injected into bubble in the ink in the second print cartridge reposefully owing to resting on the liquid level of stored print cartridge, and ink is carried from the bottom of the second print cartridge, therefore only make bubble remain in the second print cartridge, thus bubble can be removed from the ink carried to ink gun side.
Thereby, it is possible to effectively remove the bubble of visible size from ink, stable drop can be sprayed at ink gun.
And, by making the portions incline being supplied to ink in the private side wall of the second print cartridge from the first print cartridge stream, the ink be supplied to can inject further lentamente, so can improve the effect preventing bubble from producing and the effect preventing bubble to be mixed into further.
And then, by making the second print cartridge be formed as funnel-form, even if internally any position of side wall surface supplies ink, also can both flow into ink along inclined plane, thus easily can adjust the position from the first print cartridge stream to the second print cartridge supply ink.
Also have, by arranging plural first print cartridge and alternatively supplying ink to the second print cartridge, when the first selected print cartridge does not have ink, another first print cartridge can be switched to rapidly, thus the situation that the interruption of ink spray action occurs can be avoided, realize the ejection being used for continuous imaging.
In addition, by arranging degasser from the second print cartridge to way, the path of ink gun, even can remove sightless micro air bubble and dissolved gas in print cartridge, and then stable drop can be sprayed at ink gun.
Accompanying drawing explanation
Fig. 1 is the stereogram of ink-jet recording apparatus;
Fig. 2 is the top view representing the configuration of ink gun on bracket;
Fig. 3 is the profile representing ink gun internal structure;
Fig. 4 is the schematic diagram of the overview representing ink-feeding device;
Fig. 5 is the key diagram of the connection status representing common flow path and each ink gun;
Fig. 6 is the block diagram of the control system representing ink-jet recording apparatus;
Fig. 7 is the flow chart representing liquid level Monitor and Control;
Fig. 8 is the flow chart representing that ink jet head maintenance controls;
Fig. 9 is the flow chart representing that liquor charging controls;
Figure 10 is the flow chart representing that negative pressure forming portion backpressure regulation controls;
Figure 11 is the flow chart representing that wiping controls;
Figure 12 A is the profile of vice print cartridge second case;
Figure 12 B is the profile of vice print cartridge the 3rd example.
Description of reference numerals
3 ink guns
8 ink-feeding devices
10 ink-jet recording apparatus
81 main print cartridges (the first print cartridge)
82,82A, 82B assistant print cartridges (the second print cartridge)
83 degassers
811 first ink flow paths
812 ink box valves (connection switching part)
814 first liquid-feeding pumps (the first liquor charging portion)
829 second liquid-feeding pumps (the second liquor charging portion)
Detailed description of the invention
[overview of ink-jet recording apparatus]
Below, illustrate that namely embodiment is equipped with the ink-jet recording apparatus 10 of ink-feeding device referring to figs. 1 through Figure 11.Fig. 1 is the stereogram of the entirety representing ink-jet recording apparatus 10.
Ink-jet recording apparatus 10 mainly has: the conveying device 20 of conveying recording medium in the horizontal direction, carry the multiple ink gun 3(of the recording medium ejection ink be transferred from upper direction with reference to Fig. 2) bracket 4, along the main scanning device 5 of the horizontal direction transport carrier 4 orthogonal with the throughput direction of recording medium, the maintenance department 7 that each ink gun 3 carried bracket 4 is safeguarded, the nozzle 311 of each ink gun 3 that bracket 4 carries is carried out to the nozzle moisturizing portion 6 of moisturizing, the ink-feeding device 8(of ink is supplied with reference to Fig. 4 to each ink gun 3 that bracket 4 carries), the control device 9(controlling above-mentioned each structure member is with reference to Fig. 6) and the framework 100 of a support integral.
It should be noted that, in the following description, make horizontal direction and along the direction of the throughput direction of recording medium as Y direction, make horizontal direction and along the direction of the throughput direction of bracket 4 as X-direction or main scanning direction, will vertically direction as Z-direction.
[conveying device]
Conveying device 20 has: driven roller 21 and driven voller (not shown), CD-ROM drive motor 22, transport tape 23.
Driven roller 21 and driven voller are supported for rotatable, and driven roller 21 is configured to extend to main scanning direction X.CD-ROM drive motor 22 is used to the drive source of rotary actuation driven roller 21, is arranged on the end side of driven roller 21.
Transport tape 23 is formed as ring-type, is erected between driven roller 21 and driven voller.When driven roller 21 rotates, transport tape 23 rotates around between driven roller 21 and driven voller, the recording medium be placed on its upper surface is carried to the throughput direction F along Y direction, when driven roller 21 stops the rotation, this transport tape 23 stops around the rotation between two rollers, stops conveying recording medium.
When CD-ROM drive motor 22 terminates ink gun 3 along the one way single pass of X-direction by the control of control device 9, driven roller 21 rotates ormal weight, recording medium is made only to carry predetermined distance to throughput direction, then stop, if ink gun 3 starts to scan to the rightabout of main scanning direction X, then terminate, then driven roller 21 only rotates ormal weight again, recording medium is made only to carry predetermined distance to throughput direction F, then stop, the action that CD-ROM drive motor 22 is repeatedly such, carries out intermittent delivery to recording medium.
It should be noted that, as recording medium, except paper, cloth and silk, can also resin molding, metal species etc. be used.
[framework]
As shown in Figure 1, the structure of framework 100 mainly comprises: along the rectangular body portion 101 that X-direction extends, first basal part 102 of X-direction one end in supportive body portion 101, the second basal part 103 of the X-direction the other end in supportive body portion 101.
First basal part 102 holds therein and keeps maintenance department 7, and an end in supportive body portion 101 from below.Second basal part 103 holds therein and keeps nozzle moisturizing portion 6, and the other end in supportive body portion 101 from below.
Main part 101 in inside to hold towards the state of X-direction and to keep a pair carriage rail 51,51 of main scanning device 5 described later, in the inside of main part 101 along X-direction transport carrier 4.
And the first basal part 102 and the aforesaid conveying device 20 of the second basal part 103 sandwich are configured in the both sides of X-direction, and main part 101 is erected at the top of conveying device 20.Thereby, it is possible on the direction orthogonal with by the direction of conveying device 20 conveying recording medium transport carrier 4, and each ink gun 3 that can carry from this bracket 4 sprays ink, carries out image formation.
[main scanning device and bracket]
Main scanning device 5 has bar-shaped a pair carriage rail 51,51 being supported for and extending along X-direction in the inside of the main part 101 of framework 100.These a pair carriage rails 51,51 are crossed on the top of the transport tape 23 of conveying device 20.And at carriage rail 51, on 51, box like bracket 4 is supported for and reciprocally moves along X-direction.
The substantially rectangular framework that bracket 4 opens for top, its base plate carries multiple ink gun 3.As shown in Figure 1, bracket 4 the two sides of Y direction both sides from top to Y direction extend arm 42,42, this each arm 42,42 is placed in carriage rail 51 respectively by linear slide rail, the top of 51, arm 42 thus, 42 along X-direction at carriage rail 51, can slide on 51.
And, at carriage rail 51,51 with the arm 42 of bracket 4, between 42, linear motor is installed.Namely at each carriage rail 51, the stator of linear motor is installed on 51, at each arm 42 of bracket 4, on 42, rotor is installed, by the Current Control of stator side coil, bracket 4 can be made to carry out conveying action along X-direction.
Fig. 2 is the schematic illustration of the base plate 41 from top view bracket 4.In this ink-jet recording apparatus 10, yellow corresponding to Y(), the shallow magenta of Lm(), Or(is orange), M(magenta), Bk(black), Bl(is blue), Lk(light/dark balance), C(cyan), Lc(light cyan) nine kinds of colors are respectively equipped with nine ink guns 3, and the base plate of bracket 4 amounts to installation 81 ink guns 3.
As shown in the figure, the ink gun group of each color arranges along the order of X-direction according to Y, Lm, Or, M, Bk, Bl, Lk, C, Lc, and nine ink guns 3 of each ink gun group to be staggered configuration along Y direction.
And base plate 41 has the slit-shaped openings along Y direction on each position of installing each ink gun 3, and each ink gun 3 be arranged on from top base plate 41 can spray ink droplets by opening immediately below bracket 4.
Therefore, as previously mentioned, configuring nine ink guns 3 alternately by corresponding to each color, the optional position in the roughly whole width range of the Y direction in the base plate 41 of bracket 4 can spray the ink of each color.
[ink gun]
Fig. 3 is the profile of the structure in general representing ink gun 3.Ink gun 3 mainly has: the nozzle plate 31 being formed with the nozzle 311 of multiple ejection ink, the chip of ink-jet head 32 with many passages 321 and multiple piezoelectric element 322, be used for applying the wiring substrate 33 of driving voltage to each piezoelectric element 322 of chip of ink-jet head 32, importing the manifold 34 of ink through filter 343 to each passage 321 of chip of ink-jet head 32, wherein, passage 321 guides ink to each nozzle 311, and piezoelectric element 322 makes passage 321 volume change occur and spray ink.
Nozzle plate 31 is rectangular flat, and under the state that ink gun 3 is equipped on bracket 4, its platen surface is parallel with X-Y plane, and its length direction is parallel with Y direction.
And, on nozzle plate 31, form a line along Y direction and be formed with multiple through hole becoming nozzle 311.
Chip of ink-jet head 32 is formed as rectangular shape, is provided with nozzle plate 31 on its bottom surface.And, in chip of ink-jet head 32, coordinate with the allocation position of each nozzle 311 in nozzle plate 31, be formed with the multiple passages 321 being arranged in row along Y direction.Each passage 321 is the ink flow paths passing through chip of ink-jet head 32 up and down, can guide the ink in manifold 34 independently to nozzle 311.And, adjacently respectively with each passage 321 be provided with piezoelectric element 322, selectively voltage applied to arbitrary piezoelectric element 322, this piezoelectric element 322 can be made thus to expand or shrink, spray ink from the nozzle 311 of correspondence.
The upper surface of chip of ink-jet head 32 is provided with wiring substrate 33, wiring substrate 33 is connected with not shown driver of ink-jet head via flexible base board, carries out the distribution for applying the driving voltage from driver of ink-jet head to each piezoelectric element 322 of chip of ink-jet head 32 thus.
And wiring substrate 33 is installed on this manifold 34, to block the bottom of the opening of manifold 34, and wiring substrate 33 is formed with rectangular aperture, moves to each passage 321 effluent of chip of ink-jet head 32 to make the ink in manifold 34.
Manifold 34 is the cuboids of the inner hollow that length direction is configured along the state of Y direction, as previously mentioned, open bottom it, but this opening portion is blocked by making wiring substrate 33 embed.
And, on an end side of the Y direction of manifold 34 and the top of side, the other end, be formed with the first port 341 and the second port 342 of the cylindrical shape that be communicated with inner with it respectively.
In addition, the inside of manifold 34 is split into two-layer up and down by the filter 343 being used for filtering ink tramp material, and upper-side area is connected with the first port 341 and the second port 342, and underside area is connected with chip of ink-jet head 32.Namely the ink supplied in manifold 34 from outside by the first port 341 or the second port 342 is filtered by filter 343, then flows to chip of ink-jet head 32 side, and sprays from each nozzle 311.
[maintenance department]
Maintenance department 7 safeguards each ink gun 3 when not carrying out operation of recording.Maintenance department 7 departs from from conveying device 20 and is arranged on carriage rail 51, an end side of 51.Namely carriage rail 51 is moved at bracket 4, putting maintenance into practice under the state of the position relative with maintenance department 7 of 51 1 ends.
This maintenance department 7 has cleaning device and ink pallet 71(reference Fig. 4), wherein, the nozzle plate 31 lower surface dirt of each ink gun 3 of cleaning device wiping, ink pallet 71 becomes receiving vessel when the ink gun 3 by service object sprays ink.
Above-mentioned cleaning device is formed primarily of clearer and roller conveying mechanism, and wherein, the lower surface of clearer and nozzle plate 31 slidingly contacts and can rotate around the rotating shaft along X-direction, and roller conveying mechanism carries this clearer along Y direction.Clearer width is in the X-axis direction set to carry out wiping to the ink gun group with three looks corresponding be equipped in nine look ink gun groups of bracket 4, the action of this clearer by once partly moving back and forth, implements clean to all ink guns 3 of nine kinds of colors.Further, prevent from thus causing nozzle 311 to block due to the sclerosis of ink.
And, when safeguarding, ink is not undertaken by the driving of the piezoelectric element 322 of ink gun 3 to the ejection of ink pallet 71, but undertaken by the providing ink pressure of ink-feeding device 8, the blocking etc. of the ink flow path in ink gun 3 can be eliminated thus.
[nozzle moisturizing portion]
Nozzle moisturizing portion 6 departs from from conveying device 20 and is arranged at carriage rail 51, the side, the other end of 51.Namely when not carrying out operation of recording, bracket 4 moves to carriage rail 51, the position relative with nozzle moisturizing portion 6 of the other end of 51, and carries out moisturizing to the nozzle 311 of each ink gun 3 in this condition.
That is, this nozzle moisturizing portion 6 is used to closely contact with each nozzle 311 of nozzle plate 31 and make each nozzle interior be in the parts of the state be connected with the storage portion of bailing liquid out, forms primarily of the storage portion of moisture retention liquid and the elevating mechanism in nozzle moisturizing portion 6.
[ink-feeding device]
Fig. 4 is the key diagram of the structure in general representing ink-feeding device 8.Ink-jet recording apparatus 10 corresponds to often kind of color and has this ink-feeding device 8.
Ink-feeding device 8 mainly has: for storing two the first print cartridges and the main print cartridge 81 of ink, 81, be supplied to the second print cartridge of ink and assistant print cartridges 82 from each main print cartridge 81,81, be arranged on the degasser 83 of ink supply to downstream of assistant print cartridges 82, be arranged at the ink supply of degasser 83 to downstream and the middle print cartridge 84 of temporary reservoir ink, be arranged at middle print cartridge 84 the negative pressure forming portion 86 of ink supply to downstream, be connected in parallel to the common flow path 87 of the first port 341 of each ink gun 3 to supply ink to each ink gun 3.
It should be noted that, also illustrate the ink pallet 71 of maintenance department 7 in the diagram.
Above-mentioned main print cartridge 81,81 is its top containers to atmosphere opening, and two main print cartridges 81,81 are all releasably arranged on ink-jet recording apparatus 10, can change when not having ink.Because have two main print cartridges 81,81, so when a print cartridge does not have ink and when changing this print cartridge, ink can be supplied from another main print cartridge 81, therefore, it is possible to avoid the action of ink-jet recording apparatus 10 interruption logging.It should be noted that, also can carry this main print cartridge 81 more.
Whether the symbol 815 in Fig. 4 is the inks detecting each main print cartridge 81,81 is empty headroom sensor.
Between each main print cartridge 81,81 and assistant print cartridges 82, be provided with the first ink flow path 811, an end of this first ink flow path 811 is to each main print cartridge 81,81 side branch, and the other end converges to assistant print cartridges 82.At each main print cartridge 81 of this first ink flow path 811, be provided with magnetic valve near 81 namely as the ink box valve 812,812 connecting switching part, this ink box valve 812,812 can switch the on off state of stream.
And, in the way, path of assistant print cartridges 82 side of the first ink flow path 811, being provided with filter 813 for removing the tramp material such as rubbish, dust from ink, being provided with the first liquid-feeding pump 814 as the first liquor charging portion to assistant print cartridges side ink delivery than filter 813 closer to the position of assistant print cartridges 82 side.
The funnel-form in sidewall portion 821 of assistant print cartridges 82 for having diameter downwards and more reducing, top is blocked by top board 822.
The bottom centre of assistant print cartridges 82 is connected with the second ink flow path 823, and this assistant print cartridges 82 can to the ink in degasser 83 side supply assistant print cartridges 82 by this second ink flow path 823.
And, the top board 822 of assistant print cartridges 82 is provided with and makes assistant print cartridges 82 inner sustain at atmospheric atmosphere opening pipe 824.This atmosphere opening pipe 824 is provided with the filter 825 for preventing from invading from outside dust, rubbish etc.
In addition, the leading section of the first ink flow path 811 to run through top board 822 until enter inner stateful connection on the top board 822 of assistant print cartridges 82.
The leading section of this first ink flow path 811 extends to and the position of inner faces contact in the sidewall portion 821 of assistant print cartridges 82 or the position before contacting, and the ink be supplied to from the first ink flow path 811 injects to the liquid level in assistant print cartridges 82 via sidewall portion 821.
And assistant print cartridges 82 is by the upper limit position of liquid level Monitor and Control determination ink level described later, and the leading section of the first ink flow path 811 supplies ink in the position of the upper limit position higher than ink level to sidewall portion 821.
By the position of the relative assistant print cartridges 82 in leading section that sets the first ink flow path 811 as mentioned above, the ink be supplied to from the first ink flow path 811 always can be injected into liquid level via the inner face in the sidewall portion 821 of assistant print cartridges 82.Thus, ink can flow reposefully along inclined plane and be stored in assistant print cartridges 82, so when being mixed into the bubble of visible size in the ink be supplied to from the first ink flow path 811, this bubble rests on the liquid level of ink.And, because ink flows reposefully along inclined plane, so also prevent from producing new bubble and this bubble is mixed at the liquid level of ink.
And, because the ink in assistant print cartridges 82 from the most deep of bottom by the second ink flow path 823 to downstream conveying, so can from be fed into assistant print cartridges 82 downstream ink remove bubble.
That is, this assistant print cartridges 82 plays a role as the defoaming mechanism of deaeration from ink.
In addition, in assistant print cartridges 82, be provided with the second liquid level sensor 827 of the first liquid level sensor 826 of the upper limit position of regulation ink level in liquid level Monitor and Control described later and the lower position of regulation ink level.
These liquid level sensors 826,827 are all the floating type sensors with buoy, can go out liquid level be positioned on or below upper limit position or lower position according to the height detection of buoy.About liquid level Monitor and Control, will be described in detail later.
Aforesaid second ink flow path 823 is provided with between assistant print cartridges 82 and degasser 83.This second ink flow path 823 is provided with check-valves 828 from degasser 83 to assistant print cartridges 82 that prevent ink from refluxing from and the second liquid-feeding pump 829 as the second liquor charging portion from assistant print cartridges 82 to degasser 83 ink delivery.
Degasser 83 has: the degassed module 831 be connected with the end of the second ink flow path 823, the vavuum pump 832 vacuumized degassed module 831, the vacuum pressure sensor 833 detecting the pressure in degassed module 831, make degassed module 831 inside to the magnetic valve of atmosphere opening and leak valve 834.
Degassed module 831 has carries out the vacuum tank vacuumized and the hollow-fibre membrane (middle gap film) making ink pass through to the inside in vacuum tank by vavuum pump 832, by vacuumizing, the dissolved gas in ink is sucked out laterally via hollow-fibre membrane.
Vacuum pressure sensor 833 measures the testing agency whether pressure is reduced to goal pressure.And when the power supply of ink-jet recording apparatus 10 quits work, in order to safeguard degassed module 831, leak valve 834 carries out Open control by control device 9, become atmospheric pressure state to make this degassed module 831 from vacuum state.
The 3rd ink flow path 835 is provided with between degassed module 831 and middle print cartridge 84.By the supply pressure of the second liquid-feeding pump 829, ink, via second and third ink flow path 823,835, is supplied to middle print cartridge 84.
Middle print cartridge 84 is formed by having flexible bag, along with the change of stored quantity of ink, carries out expanding or shrinking.
And be attached to liquid measure sensor 841 on this middle print cartridge 84, this liquid measure sensor 841 is used for detecting ink and whether is stored as ormal weight.From when being supplied to ink from assistant print cartridges 82, supply ink by the second liquid-feeding pump 829, till this liquid measure sensor 841 detects and reaches regulation liquid measure.
Between middle print cartridge 84 to negative pressure forming portion 86, be provided with the 4th to the 7th ink flow path 842 ~ 845, carry out providing ink by these streams.And, the first three-way switch valve 846 as electromagnetic switching valve is provided with between the 4th ink flow path 842 and the 5th ink flow path 843, between the 5th ink flow path 843 and the 6th ink flow path 844, be provided with the second three-way switch valve 847 as electromagnetic switching valve, between the 6th ink flow path 844 and the 7th ink flow path 845, be provided with the 3rd three-way switch valve 848 as electromagnetic switching valve.
And, 5th ink flow path 843 is provided with check-valves 849, the 3rd liquid-feeding pump 850 and safety valve 851, wherein, check-valves 849 only allows that ink flows from the first three-way switch valve 846 to the direction towards the second three-way switch valve 847,3rd liquid-feeding pump 850 is to the direction ink delivery identical with the feasible direction of this check-valves 849, and safety valve 851 makes ink turn back to assistant print cartridges 82 when the downstream of the 3rd liquid-feeding pump 850 exceedes authorized pressure.
In the way of the 6th ink flow path 844, be connected with an end of branch flow passage 852, the other end of this branch flow passage 852 is connected with the first three-way switch valve 846.This first three-way switch valve 846, by the control of control device 9, can switch between the state making the 5th ink flow path 843 be connected with the 4th ink flow path 842 and the state making the 5th ink flow path 843 be connected with branch flow passage 852.
And, second three-way switch valve 847 is also connected with the stream 853 that returns for making ink turn back to assistant print cartridges 82, this second three-way switch valve 847, by the control of control device 9, and can make the 5th ink flow path 843 switch with returning between state that stream 853 is connected in the state making the 5th ink flow path 843 be connected with the 6th ink flow path 844.
In addition, above-mentioned first and second three-way switch valves 846,847 can be undertaken combining being switched control by control device 9 simultaneously, can from middle print cartridge 84 via fourth, fifth, six ink flow paths 842,843,844 to the supply connection status (white arrow in Fig. 4) of negative pressure forming portion 86 side ink delivery and from negative pressure forming portion 86 side via branch flow passage 852, the 5th ink flow path 843, return stream 853 and to carry out switching between connection status (black arrow Fig. 4) control to returning of assistant print cartridges 82 side ink delivery.
That is, utilize the output pressure of the 3rd liquid-feeding pump 850, can freely and selectively carry out to the providing ink of negative pressure forming portion 86 side and the ink recovery from negative pressure forming portion 86 side.
3rd three-way switch valve 848 also with do not become portion 86 by negative pressure shape and the tortuous flow passage 854 supplying ink to ink gun side is connected, by the control of control device 9, can switch between the state making the 6th ink flow path 844 be connected with the 7th ink flow path 845 and the state making the 6th ink flow path 844 be connected with tortuous flow passage 854.
That is, by this switching, can be able to implement the supply of ink and the state of recovery to negative pressure forming portion 86 and can carry out switching between the supply of ink and the state of recovery to ink gun 3 side (being common flow path 87 strictly speaking).
Negative pressure forming portion 86 mainly comprises: formed above compared with the rectangular body container 861 in big uncork portion, the blocking opening portion of main body container 861 and the membrane element 862 formed by flexible resin(a) film, the not shown spring that presses membrane element 862 center from the inside of main body container 861 laterally.
Main body container 861 is connected with aforesaid 7th ink flow path 845 and the 8th ink flow path 863, and wherein, the 8th ink flow path 863 leads to the common flow path 87 of all first ports 341 being connected with nine ink guns 3 side by side.
In addition, because membrane element 862 is pressed laterally by its central portion of spring, so, to give prominence to laterally as roughly cone shape shape and in tension.
Then, under the pressure identical with atmospheric pressure, ink is filled up after in main body container 861, make aforesaid first and second three-way switch valves 846,847 are in and return connection status and in main body container 861, reclaim ink, now the inside of each ink gun 3 can be made to be in negative pressure state via common flow path 87.The inner sustain of ink gun 3 why is made to be negative pressure like this, because in order to prevent following phenomenon, if such as make pressure setting in nozzle 311 at atmospheric pressure, then ink easily spills from nozzle 311, and ink is easily attached to the surrounding of nozzle 311 and causes ink discharge failure or some footpath easily to produce difference.
It should be noted that, the goal pressure as negative pressure can control by regulating the yield of the ink in main body container 861.
In addition, on the top of the main body container 861 of above-mentioned negative pressure forming portion 86, be provided with and be communicated with and the communicating pipe 864 extended upward with the inside of this main body container 861.In the end of main body container 861 side of communicating pipe 864, liquid level sensor 865 is installed, is provided with pressure sensor 866 in the upper end of communicating pipe 864.Further, be connected with one end to atmosphere opening and the branched pipe 867 flatly extended at the pars intermedia of communicating pipe 864, in the way of this branched pipe 867, be provided with the relief valve 868 of this branched pipe 867 of switch and the air cleaner 869 of filtered air.
These parts are supplying ink and control structure member for using during regulation negative pressure in main body container 861.Namely under the state opening relief valve 868, in main body container 861, supply ink, until liquid level detected by liquid level sensor 865, then close relief valve 868, ink is reclaimed, until pressure sensor 866 shows the negative pressure pressure as target in main body container 861.Thereby, it is possible to make each ink gun 3 inside be in the negative pressure state of regulation by negative pressure forming portion 86.
From negative pressure forming portion 86 extend the 8th ink flow path 863 on the way converge with aforesaid tortuous flow passage 854 after and common flow path 87 link together.And, to be provided with the protective valve 871 as normally open type magnetic valve near the position of negative pressure forming portion 86 side at the point converged than itself and tortuous flow passage 854 of the 8th ink flow path 863.
Common flow path 87 is containers of the flat inner hollow of roughly isosceles triangle shape (precisely the pentagon shape that formed along the both ends on the isosceles triangle base of direction excision vertically) when facing, and common flow path 87 makes to be mounted in towards horizontal direction on bracket 4 bottom it.This common flow path 87 is connected with the 8th ink flow path 863 at the position being equivalent to isosceles triangle summit, is connected with the first port 341 of nine ink guns 3 of same color at the position being equivalent to isosceles triangle base side by side.
In the inner space of ink by the three-dimensional of common flow path 87, the shape of this inner space is identical with outer shape and be general triangular shape.Now, because supply ink from the position on summit, so ink can be supplied equably to each ink gun 3 be connected with base each several part, and larger deflection can not be produced.
It should be noted that, this common flow path 87 is formed as, as long as the shape facing the inner space of supply ink is roughly isosceles triangle, its outer shape can not be roughly isosceles triangle shape.
In addition, the waste liquid stream 872 be communicated with not shown waste liquid box is connected with near the vertex position of common flow path 87, this waste liquid stream 872 is provided with the waist valve 873 as normally closed solenoid valve, and this waste liquid stream 872 is that open waist valve 873 discharges ink to discharge the stream of bubble when ink fills up common flow path 87.Because the summit of waste liquid stream 872 with the upper end as common flow path 87 is connected, so common flow path 87 passes through to supply ink further under the state being full of ink, bubble can be made to float upward in common flow path 87, effectively discharge together with ink.Thereby, it is possible to removing becomes the bubble of the reason of ink discharge failure, thus stably can spray ink.
Fig. 5 is the key diagram of the connection status representing common flow path 87 and each ink gun 3.As shown in Figures 4 and 5, common flow path 87 is connected with the first port 341 of each ink gun 3 with valve 874 via the operation of recording as normally open type magnetic valve.
And via normally closed type, the second port 342 of each ink gun 3 safeguards that valve 875 and common waste liquor stream road 876 are connected in parallel respectively.Common waste liquid stream 876 is connected with waste liquid box after the position in the downstream being positioned at waist valve 873 relative to said debris stream 872 is converged.
[control device]
Fig. 6 is the block diagram of the control system representing ink-feeding device 8.Although the control device 9 described in Fig. 6 controls ink-jet recording apparatus 10 entirety, in the structure of this diagram ink-feeding device 8, omit the diagram to other structures.And, also one of them structure is only illustrated for multiple structure.
Control device 9 not only carries out being recorded in the control of the data being converted to each nozzle 311 of corresponding ink gun 3 from the view data of the image the recording medium that external device (ED) is transfused to etc. to ink-feeding device 8, also drive each several part of ink-jet recording apparatus 10 and control.
As shown in Figure 6, control device 9 is made up of the common computer being connected with CPU91, ROM92, RAM93 and not shown input/output interface etc. in bus.
This control device 9 is connected with the first to the 3rd liquid-feeding pump 814; 829; 850, vavuum pump 832, ink box valve 812, leak valve 834, first are to the 3rd three-way switch valve 846; 847; 848, relief valve 868, protective valve 871, waist valve 873, operation of recording valve 874, safeguard valve 875, in control device 9 using these as control object.
And, control device 9 is connected with headroom sensor 815, first and second liquid level sensor 826,827, liquid measure sensor 841, liquid level sensor 865, vacuum pressure sensor 833, pressure sensor 866, input various detection signal from these sensors.
And then be also connected with the display part 95 etc. of the various information such as input operation part 94 and display error message on control device 9, wherein, input operation part 94 carries out the input of the various actions supporting execution from operator etc.
Control device 9, according to these Detection Information, implements the liquid level Monitor and Control of assistant print cartridges 82, the maintenance control etc. of ink gun 3 to above-mentioned each control object.
[liquid level Monitor and Control]
Below, with reference to the flow chart of Fig. 7, the liquid level Monitor and Control of the assistant print cartridges 82 that above-mentioned control device 9 carries out is described in detail.
This liquid level Monitor and Control is the control supplying ink from the main print cartridge 81 of ink to assistant print cartridges 82 and guarantee to maintain certain quantity of ink assistant print cartridges 82, repeatedly implements according to the predetermined cycle.
In this liquid level Monitor and Control, with open each main print cartridge 81,81 any one ink box valve 812, close premised on another ink box valve 812.
To being used for, first control device 9 judges whether the current main print cartridge 81 be connected with assistant print cartridges 82 is that empty timer initializes (step S1).
Then, whether the ink judged in assistant print cartridges 82 by the first liquid level sensor 826 reaches the detection level (step S3) of the first liquid level sensor 826 representing full box.
Its result, when detecting that ink has reached the detection level of the first liquid level sensor 826, because the ink in assistant print cartridges 82 reaches aim parameter, so control device 9 terminates liquid level Monitor and Control.
On the other hand, when detecting that ink does not reach the detection level of the first liquid level sensor 826, make for judging that main print cartridge 81 starts timing as empty timer, and the first liquid-feeding pump 814 is worked, perform the providing ink (step S5) from main print cartridge 81 to assistant print cartridges 82.
Then, whether control device 9 reaches the detection level (step S7) represented close to the second liquid level sensor 827 of sylphon by the ink that the second liquid level sensor 827 judges in assistant print cartridges 82.
Its result, when detecting that ink has reached the detection level of the second liquid level sensor 827, control device 9 judges whether the time that timer is added up have passed through the liquor charging time (step S9) preset.
Then, when the time that timer is added up without the liquor charging time preset, return step S3 process, and judge whether assistant print cartridges 82 is full box.
The liquor charging time in the judgement of above-mentioned steps S9 is set at the sufficient time making the full box of assistant print cartridges 82 with the liquor charging ability of the first liquid-feeding pump, namely when to have passed through this liquor charging time assistant print cartridges 82 also less than, can infer that main print cartridge 81 is empty.
Thus, control device 9 stops the driving (step S11) of the first liquid-feeding pump 814, is judged as main print cartridge 81 empty (step S13), closes the ink box valve 812 be kept on all before this, open another ink box valve 812, perform the switching (step S15) supplying the main print cartridge of ink to assistant print cartridges 82.Now, also the empty display and control of the main print cartridge 81 of report one can be carried out by display part 95.
And after the main print cartridge 81 of switching, control device 9 returns step S1 process again, then supplies ink to assistant print cartridges 82.
And, under detecting that assistant print cartridges 82 is the situation (step S7: no) of empty state by the second liquid level sensor 827 in the step s 7, no matter by the first liquid-feeding pump 814 whether ink delivery, any one main print cartridge 81,81 are all in empty state, represent the state that all inks in main print cartridge 81,81 and assistant print cartridges 82 have been used up all, so, as long as control device 9 is in all operation of recording just stopping ink-jet recording apparatus 10 in operation of recording in order to prevent operation of recording bad.Now, also can carry out display part 95 display to make mistakes the display and control of the report display that stops and the empty warning display of display ink.
[safeguard and control]
Below, with reference to the flow chart of Fig. 8, the maintenance describing the ink gun 3 that above-mentioned control device 9 carries out in detail controls.At this, prerequisite is as follows: carry out spout test with all ink guns 3 for object in advance, determines the ink gun 3 needing to safeguard, is become the ink gun 3 of service object by input operation part 94 input.
And bracket 4 is standby directly over maintenance department 7.
First, control device 9 is by the first and second three-way switch valves 846,847 switch to the supply connection status connection of white arrow (in the Fig. 4), and the 3rd three-way switch valve 848 is switched to be connected to tortuous flow passage 854(step S21 from the 6th ink flow path 844).
And then, the operation of recording valve 874(step S23 that control device 9 carrying out controlling waist valve 873 for opening common flow path 87, cutting out protective valve 871, cutting out all ink guns 3).
Then, the liquor charging performing ink controls (step S25).
At this, the flow chart with reference to Fig. 9 illustrates that liquor charging controls.
When ink delivery, controlling organization makes the 3rd liquid-feeding pump 850 work (step S251), directly judge whether in this condition to have passed through the working time T1(step S253 preset), continue the 3rd liquid-feeding pump 850 is worked till have passed through working time T1.
By the work of the 3rd liquid-feeding pump 850, the roundabout negative pressure forming portion 86 of the ink in middle print cartridge 84 and supplying directly to common flow path 87.Now, because the operation of recording valve 874 of all ink guns 3 is all closed, and safeguard that valve 875 is for normally close valve, so each ink gun 3 side is not supplied to ink, and is full of ink in common flow path 87.When filling up ink in common flow path 87, remaining ink is discharged from waste liquid stream 872.Supply ink by certain time, the bubble floating in common flow path 87, to the top of common flow path 87, is discharged from waste liquid stream 872.
Then, when through working time T1, the 3rd liquid-feeding pump 850 is stopped (step S255), makes it standby until through stand-by time T2.Thus, the bubble produced owing to injecting ink in common flow path 87 floats to the top in common flow path 87 and concentrates.
Then, when through stand-by time T2, control device 9 judges whether the supply of ink and standby number of repetition reach the targeted number N(step S259 preset).
Then, if miss the mark number of times, then return step S251 process, again perform the supply of ink and standby.
It should be noted that, working time T1, stand-by time T2, targeted number N can be set by input operation part 94 pairs of control device 9 in advance.The targeted number N repeated is preferably set to more than at least twice, can discharge the bubble floated because of standby to common flow path 87 top in upper providing ink once.
Again return Fig. 8 to be described.
At the end of liquor charging controls, control device 9 carries out controlling as cutting out the waist valve 873(step S27 of common flow path 87), open as the ink gun 3 of service object operation of recording valve 874 and safeguard valve 875(step S29).
Then, again perform liquor charging and control (step S31).Working time T1, stand-by time T2 now, targeted number N can be set as the value identical with step S25, also can be set as different values.
When carrying out providing ink in this case, supply ink by the first port 341 to as in the ink gun 3 of service object from common flow path 87.Then, the ink be supplied to is discharged to common waste liquid stream 876 by the second port 342, and a part of ink sprays from the nozzle 311 of ink gun 3 to ink pallet 71.
At the end of secondary liquor charging controls, control device 9 cuts out the maintenance valve 875(step S33 of the ink gun 3 as service object).
Then, the liquor charging performing third time controls (S35).Now, working time T1, stand-by time T2, targeted number N can be set as the value identical with step S25 or S31, also can be set as different values.
When carrying out providing ink in this case, supply ink by the first port 341 to as in the ink gun 3 of service object from common flow path 87, spray ink from nozzle 311 to ink pallet 71.Now, because whole ejections acting on nozzle 311 of the supply pressure of ink, so such as can seek to make the nozzle 311 of blocking etc. extrude foreign matter etc. and eliminate blocking.
Then; at the end of third time, liquor charging controlled; control device 9 makes except also all opening (step S37) as the operation of recording valve 874 of all ink guns 3 of other except the ink gun 3 of service object; and open protective valve 871, the 3rd three-way switch valve 848 is switched to simultaneously and make the 6th ink flow path 844 and the 7th ink flow path 845 be in connection status (step S39).
Then, control device 9 pairs of negative pressure forming portions perform backpressure regulation and control (step S41), and then perform wiping control to each ink gun 3, thus complete maintenance control (step S43).
At this, with reference to the flow chart of Figure 10, the backpressure regulation explaining negative pressure forming portion controls.
First, control device 9 switches, and opens and protective valve 871 is closed (step S411) to make relief valve 868.
Then, the current pressure of pressure sensor 866 in negative pressure forming portion 86 is set as atmospheric pressure (step S412).
Then, the 3rd liquid-feeding pump 850 is started working (step S413), judge whether the ink of supply in the main body container 861 of negative pressure forming portion 86 reaches the liquid level sensor 865(step S414 being positioned at position, main body container 861 upper end).
Then, if ink does not arrive the upper end of main body container 861, then continue to supply ink to main body container 861, when ink arrives the upper end of main body container 861, stop the work (step S415) of the 3rd liquid-feeding pump 850.
Afterwards, control device 9 carries out controlling (step S417) and cuts out (step S416) for making relief valve 868, is switched to by the first and second three-way switch valves 846,847 to make it be in return connection status (in Fig. 4 black arrow).
Then, when again make the 3rd liquid-feeding pump 850 work (step S418) time, discharge inner ink from the main body container 861 of negative pressure forming portion 86.Its result, the internal pressure of main body container 861 reduces.
Pre-determining and be applicable to the negative pressure force value that each ink gun 3 sprays ink, when being detected that by pressure sensor 866 Pressure Drop is low to moderate negative pressure force value (the step S419) being applicable to ejection ink, stopping the work (step S420) of the 3rd liquid-feeding pump 850.
Then, protective valve 871(step S421 opened by control device 9), thus, negative pressure forming portion 86 is connected via the 8th ink flow path 863 and common flow path 87 with each ink gun 3.Therefore, the inside of each ink gun 3 becomes identical negative pressure pressure with the inside of negative pressure forming portion 86.
Afterwards, control device 9 carries out controlling as making the first and second three-way switch valves 846,847 switch to supply connection status (in Fig. 4 white arrow) (step S422), and the backpressure regulation completing negative pressure forming portion controls.
Below, the flow chart with reference to Figure 11 illustrates that wiping controls.In wiping controls, to the periphery of each nozzle 311 of all ink guns 3 difference wiping on bracket 4.
And, the wiping of each nozzle 311 is undertaken by carrying along Y direction while making the lower surface of the wiper rolls and nozzle plate 31 that carry out rotary actuation around the rotating shaft along X-direction slidingly contact.
On the other hand, for this ink-jet recording apparatus 10, because each color of corresponding nine kinds of colors has carried nine ink guns 3 on bracket 4, the region of implementing wiping is also very large.Therefore, control if wiper rolls once will be carried to complete wiping by one way, wiper rolls just must be made along the lengthening of its rotating shaft direction, and this easily causes bending etc., thus effectively may not carry out wiping.
Therefore, wiper rolls size is in the X-axis direction roughly the same with the width of the ink gun 3 of three kinds of colors side by side, point carries out wiping to the nozzle of all ink guns 3 of nine kinds of colors three times.
Below, the action control of wiper rolls is described.
First, control device 9 makes wiper rolls rotate, and carries out one way (going journey) conveying (step S431) from its position of readiness, thus, carries out wiping to the ink gun 3 of three looks.
Then, make the distance (step S433) that bracket 4 is only mobile with the ink gun 3 arrangement width in the X-axis direction of three looks identical, wiper rolls is rotated and carries out one way (return) conveying (step S435).Thus, wiping is carried out to the ink gun 3 of three looks of next group.
And then, make the distance (step S437) that bracket 4 is only mobile with the ink gun 3 arrangement width in the X-axis direction of three looks identical, wiper rolls is rotated and carries out one way (going journey) conveying (step S439).Thus, wiping is carried out to the ink gun 3 of last three looks.
In addition, above-mentioned wiping only repeats to implement according to the number of times preset.Therefore, when completing the wiping of ink gun of nine looks, the wiping number of times of current enforcement and the number of repetition preset compare (step S441) by control device 9.Its result, if the number of times of current enforcement does not reach the number of repetition of setting, then returns S431 process, again starts wiping action.
On the other hand, if the number of times of current enforcement and the number of repetition of setting consistent, then terminate wiping control.
[technique effect of embodiment of the present invention]
The ink-feeding device 8 of ink-jet recording apparatus 10 is being provided with funnelform assistant print cartridges 82 from main print cartridge 81 to way, the path of each ink gun 3, in the mode that the internal side wall surface current making ink and tilt via assistant print cartridges 82 is dynamic, ink is supplied to assistant print cartridges 82 from main print cartridge 81, so from the bottom of assistant print cartridges 82 through middle print cartridge 84, negative pressure forming portion 86, common flow path 87 etc. to each ink gun 3 ink delivery.
Therefore, because the ink supplied to assistant print cartridges 82 moves along the internal side wall surface current tilted, so with ink with compared with situation about being injected into the mode that liquid level collides, ink can flow into reposefully, thus reduces generation bubble.And, even if when having bubble to be mixed into, because the bubble be injected into reposefully in the ink of assistant print cartridges 82 rests on the liquid level of stored ink, and by the bottom ink delivery from assistant print cartridges 82, only have bubble to remain in assistant print cartridges 82 inner, therefore also can remove bubble from the ink carried to its downstream.
Thereby, it is possible to effectively remove the bubble of visible size from ink, stable drop can be sprayed at each ink gun 3.
And, by arranging two main print cartridges 81 and alternatively supplying ink to assistant print cartridges 82, when selected main print cartridge 81 does not have ink, another main print cartridge 81 can be switched to fast, the spray action of avoidance breakout ink, can realize the ejection for continuous imaging.
In addition, by arranging degasser 83 in the way, path of assistant print cartridges 82 to each ink gun 3, even can remove sightless micro air bubble and dissolved gas in ink, therefore can spray stable drop further at each ink gun 3.
[other]
It should be noted that, in the above-described embodiment exemplified with funnelform assistant print cartridges 82, but, enable ink via the dynamic structure of the internal side wall surface current of assistant print cartridges as long as have from the first ink flow path 811, be not limited to above-mentioned illustrative structure.
Such as, Figure 12 A illustrates the assistant print cartridges 82A of second case, as shown in the drawing, also print cartridge shape can be formed as cylindric or rectangular-shaped, by the leading section of the first ink flow path 811 and the private side wall of assistant print cartridges 82A near to or in contact with and configure, move via the internal side wall surface current along direction vertically to make ink.In this case, in assistant print cartridges 82A, because ink moves along vertical surface current, so its flow velocity is faster than the flow velocity of inclined plane, but, with inject the situation of ink directly to liquid level compared with, the generation of bubble can be reduced fully, and make gas bubbles left in liquid level, thus bubble can be removed to the ink that the downstream of assistant print cartridges 82A supplies.
And, Figure 12 B illustrates the assistant print cartridges 82B of the 3rd example, as shown in the drawing, also can be different from assistant print cartridges 82, its side wall surface entirety is not tilt, but only make the position of the ink flow be supplied to from the first ink flow path 811 be formed as inclined plane, and the immobilising part of ink is made to be formed as vertical plane.In this case, because ink flows lentamente along inclined plane in assistant print cartridges 82, so the effect substantially identical with assistant print cartridges 82 can be obtained.
In addition, the present invention is not limited to the content of above-mentioned embodiment, can carry out suitable change without departing from the scope of the subject in the invention.
Claims (8)
1. an ink-feeding device for ink-jet recording apparatus, is characterized in that,
This ink-jet recording apparatus has:
First print cartridge, store the ink to ink gun supply, this ink gun sprays ink to recording medium;
Second print cartridge, is arranged on the way, path from described first print cartridge to described ink gun;
First liquor charging portion, from described first print cartridge to described second print cartridge ink delivery;
Second liquor charging portion, from described second print cartridge to described ink gun side ink delivery;
First ink flow path, connects described first print cartridge and described second print cartridge;
The end of the described second print cartridge side of described first ink flow path is connected with this second print cartridge, moves via the internal side wall surface current of this second print cartridge to make ink;
Described second liquor charging portion from the bottom ink delivery of described second print cartridge,
Make the portions incline being at least supplied to ink from described first ink flow path of the private side wall of described second print cartridge, therein side wall surface flows to make ink.
2. the ink-feeding device of ink-jet recording apparatus as claimed in claim 1, is characterized in that,
Make described second print cartridge be formed as funnel-form, from described first ink flow path supply ink, make ink dynamic at the private side wall upper reaches of described second print cartridge.
3. the ink-feeding device of ink-jet recording apparatus as claimed in claim 1 or 2, is characterized in that,
There is plural described first print cartridge,
Have connection switching part, this connection switching part alternatively switches the connection with described second print cartridge from each first print cartridge.
4. the ink-feeding device of ink-jet recording apparatus as claimed in claim 1, is characterized in that,
Have degasser ink being carried out to vacuum outgas, this degasser is arranged on the way, path from described second print cartridge to described ink gun.
5. an ink supply method for ink-jet recording apparatus, this ink-jet recording apparatus has:
First print cartridge, store the ink to ink gun supply, this ink gun sprays ink to recording medium;
Second print cartridge, is arranged on the way, path from described first print cartridge to described ink gun;
First liquor charging portion, from described first print cartridge to described second print cartridge ink delivery;
Second liquor charging portion, from described second print cartridge to described ink gun side ink delivery;
First ink flow path, connects described first print cartridge and described second print cartridge;
The feature of this ink supply method is,
Supply ink from the end of the described second print cartridge side of described first ink flow path to this second print cartridge, ink is moved via the internal side wall surface current of this second print cartridge;
By described second liquor charging portion, from the bottom ink delivery of described second print cartridge,
Make the portions incline being at least supplied to ink from described first ink flow path of the sidewall of described second print cartridge, carry out providing ink to make the mode that ink side wall surface flows therein.
6. the ink supply method of ink-jet recording apparatus as claimed in claim 5, is characterized in that,
Make described second print cartridge be formed as funnel-form, from described first ink flow path supply ink, make ink dynamic at the private side wall upper reaches of described second print cartridge.
7. the ink supply method of the ink-jet recording apparatus as described in claim 5 or 6, is characterized in that,
There is plural described first print cartridge,
Alternatively to described second print cartridge supply ink from each first print cartridge.
8. the ink supply method of ink-jet recording apparatus as claimed in claim 5, is characterized in that,
From described second print cartridge in way, the path of described ink gun, after carrying out vacuum outgas by vacuum degasser to ink, to described ink gun supply ink.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-205435 | 2011-09-21 | ||
| JP2011205435A JP2013067032A (en) | 2011-09-21 | 2011-09-21 | Ink supply device of inkjet recording apparatus and ink supply method |
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| Publication Number | Publication Date |
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| CN103057272A CN103057272A (en) | 2013-04-24 |
| CN103057272B true CN103057272B (en) | 2015-03-25 |
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| CN201210355366.1A Active CN103057272B (en) | 2011-09-21 | 2012-09-21 | Ink supply device and ink supply method for inkjet recording apparatus |
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| Country | Link |
|---|---|
| EP (1) | EP2572886B1 (en) |
| JP (1) | JP2013067032A (en) |
| CN (1) | CN103057272B (en) |
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| CN105829110B (en) * | 2013-12-26 | 2017-12-26 | 柯尼卡美能达株式会社 | Ink-jet recording apparatus and its control method |
| JP6617708B2 (en) * | 2014-09-18 | 2019-12-11 | コニカミノルタ株式会社 | Bubble removing method for inkjet head and bubble removing apparatus for inkjet head |
| WO2016093158A1 (en) * | 2014-12-09 | 2016-06-16 | コニカミノルタ株式会社 | Ink supply device and inkjet recording device |
| JP6401602B2 (en) * | 2014-12-22 | 2018-10-10 | 富士通周辺機株式会社 | Sub tank and printer |
| WO2016119859A1 (en) | 2015-01-29 | 2016-08-04 | Hewlett-Packard Development Company, L.P. | Calibration of a pump |
| JP6597777B2 (en) * | 2015-05-25 | 2019-10-30 | コニカミノルタ株式会社 | Inkjet head, bubble removal method for inkjet head, and inkjet recording apparatus |
| JP7121594B2 (en) * | 2018-08-29 | 2022-08-18 | 株式会社ミマキエンジニアリング | Inkjet printer and method of controlling an inkjet printer |
| JP7085444B2 (en) * | 2018-09-21 | 2022-06-16 | 株式会社Ｓｃｒｅｅｎホールディングス | Inkjet printing equipment and ink supply method |
| JP7195859B2 (en) * | 2018-10-05 | 2022-12-26 | キヤノン株式会社 | Liquid supply device, liquid ejection device, and liquid supply method |
| JP2021000730A (en) * | 2019-06-20 | 2021-01-07 | 武蔵エンジニアリング株式会社 | Counting machine |
| CN112571958B (en) * | 2019-09-30 | 2023-04-21 | 精工爱普生株式会社 | Liquid ejecting apparatus and control method of liquid ejecting apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1533330A (en) * | 2001-07-06 | 2004-09-29 | 兄弟工业株式会社 | Ink jet printer |
| CN201922646U (en) * | 2010-11-30 | 2011-08-10 | 珠海纳思达企业管理有限公司 | Ink box filling device and ink box filling component |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4652556B2 (en) * | 2000-11-15 | 2011-03-16 | キヤノン株式会社 | Inkjet recording head |
| JP4191972B2 (en) * | 2002-10-04 | 2008-12-03 | 株式会社リコー | Ink liquid mixing apparatus, ink liquid manufacturing apparatus, manufacturing method, cleaning method, ink manufactured by the manufacturing method, ink cartridge storing the ink, ink jet apparatus, image forming method, and image formed product |
| JP2006192638A (en) * | 2005-01-12 | 2006-07-27 | Fuji Photo Film Co Ltd | Inkjet recording apparatus |
| US8038267B2 (en) * | 2007-03-28 | 2011-10-18 | Kabushiki Kaisha Toshiba | Droplet jetting applicator and method for manufacturing coated body |
| JP5615575B2 (en) | 2009-09-11 | 2014-10-29 | 株式会社セイコーアイ・インフォテック | Inkjet printer |
-
2011
- 2011-09-21 JP JP2011205435A patent/JP2013067032A/en not_active Withdrawn
-
2012
- 2012-09-14 EP EP20120184596 patent/EP2572886B1/en active Active
- 2012-09-21 CN CN201210355366.1A patent/CN103057272B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1533330A (en) * | 2001-07-06 | 2004-09-29 | 兄弟工业株式会社 | Ink jet printer |
| CN201922646U (en) * | 2010-11-30 | 2011-08-10 | 珠海纳思达企业管理有限公司 | Ink box filling device and ink box filling component |
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| EP2572886A1 (en) | 2013-03-27 |
| EP2572886B1 (en) | 2014-10-22 |
| CN103057272A (en) | 2013-04-24 |
| JP2013067032A (en) | 2013-04-18 |
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