CN100582821C - Ink jet device and ink jet control method - Google Patents

Ink jet device and ink jet control method Download PDF

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CN100582821C
CN100582821C CN200680029507A CN200680029507A CN100582821C CN 100582821 C CN100582821 C CN 100582821C CN 200680029507 A CN200680029507 A CN 200680029507A CN 200680029507 A CN200680029507 A CN 200680029507A CN 100582821 C CN100582821 C CN 100582821C
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ink
jet
unit
scanning direction
target
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CN101243336A (en
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吉冈智良
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Sharp Corp
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Sharp Corp
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Abstract

An ink discharge device has an ink discharge section, a determination section, an ink discharge control section, etc. The ink discharge section is movable relative to a medium in main scan direction Y and auxiliary scan direction X. When a large number of objects (2) to which pixels are to be printed (objects to which ink is to be discharged) are present scattered on a board (4) as the medium, the determination section calculates times Yt and Xt in which the ink discharge section moves in the main scan direction Y and the auxiliary scan direction X, respectively, determines whether Xt = Yt is achievable, and uses the result of the determination to select the subsequent ink discharge target or an ink discharge target candidate. Further, the ink discharge device may be configured such that the ink discharge control section determines whether the ink discharge section is in a static state (whether there is vibration or not). The construction enables ink to be accurately discharged to the objects.

Description

Ink discharge device and ink discharge control method
Technical field
The present invention relates to can be to the ink discharge device and the ink discharge control method of the accurate ink-jet of ink-jet object.
Background technology
In recent years, the technology of ink-jet is not only at civilian printer, and (Color filter: color filter) plate process units and other process units all extensively are applied its purposes variation with CF at liquid crystal.
As one of them example, can enumerate the technology of utilizing ink-jet forms pattern on substrate ink-jetting pattern manufacturing technology.The ink-jetting pattern manufacturing technology is with the micro liquid headed by the China ink and directly print the technology of fine pattern on substrate from ink discharge device ejection.This ink-jetting pattern manufacturing technology instead has the method for generating pattern based on the use vacuum process of photoetching plate-making, and as the technology that can be used for exempting from vacuum process, the degree that receives publicity improves constantly,
In recent years, carry out the exploitation of the device that the formation CF plate that uses this ink-jetting pattern manufacturing technology uses.This device makes RGB that the China ink of red (R), green (G) and blue (B) composition of all kinds forms on glass substrate with hitting in the pixel, thus each pixel of landfill, formation CF plate.Especially this device is used for the making of liquid crystal that large tracts of landization in recent years makes progress day by day with the CF plate.So, require this device its processing time of strict control, in certain short time, finish processing reliably.
In the existing CF plate, as shown in Figure 7, the pixel 101 of its print object is arranged in lattice-shaped with respect to main scanning direction Y and sub scanning direction X.Therefore, in the Method of printing of the whole pixel of existing CF plate, generally be: shower nozzle is alternately repeating to move with the main scanning direction Y of the ranks direction that is equivalent to pixel and the direction of sub scanning direction X quadrature, and ink-jet after moving to destination locations (for example referring to Patent Document 1).Moreover among this figure, with the No.1 mobile route of representing shower nozzle of arrow.
Again, the ink-jetting pattern manufacturing technology not only as the comprehensive technology of print pixel, and is widely used as the technology (for example referring to Patent Document 2) that the defect pixel of repairing colour mixture, sneak into or adhere to snotter is used.Restorative procedure as defect pixel, the method of using utilizes laser aid etc. to remove the China ink layer that produces the defect pixel of black colour mixture because of ink leak between neighbor, and the part after this removal utilized the China ink of the look of appointment among the ink-jetting pattern manufacturing technology ejection RGB once more, thereby repair.
The shower nozzle of ink discharge device is to the moving method of defect pixel during as above-mentioned reparation, and the method for use makes shower nozzle move toward 2 dimension directions according to the XY coordinate of repairing the position, in case arrive destination locations, just sprays the ink droplet of specified quantity, carries out the landfill of defect pixel.Make shower nozzle toward the method that 2 dimension directions move as this, be extensive use of XY plotter method, alternately repeat toward the method that main scanning direction moves and past sub scanning direction moves.
XY plotter method changes row according to the Y coordinate merely and becomes fault location, changes fault location behind the row according to the ascending sequence or the order reparation of falling progressively.For example, as shown in Figure 8, there is a plurality of pixel print object portion 202 on the substrate 204.At this moment, XY plotter rule is as the fault location from the Y coordinate figure maximum of each pixel print object portion 202, and the mobile shower nozzle of one side is simultaneously repaired successively.At this moment, repeat acceleration and the deceleration of main scanning direction Y and sub scanning direction X.Moreover, the mobile route of the No.1 expression shower nozzle of the arrow among this figure.As shown in the drawing, according to said method, shower nozzle one moves between pixel print object portion 202 point-blank.
Alternately repeat toward the method that main scanning direction moves and past sub scanning direction moves, the past main scanning direction of one side moves, a repair-deficiency place, moves toward sub scanning direction then.Behind the mobile end of sub scanning direction, another toward main scanning direction move, a repair-deficiency place.Said method is the method that moves that alternately repeats like this toward the mobile and past sub scanning direction of main scanning direction.For example, as shown in Figure 9, there are a plurality of pixel print objects 302 on the substrate 304.At this moment, said method one side only toward main scanning direction move, a repairing pixel print object 302.Repair when finishing, do not carry out moving of past main scanning direction Y, only move toward sub scanning direction X.Thereby said method repeats acceleration and the deceleration to main scanning direction Y and sub scanning direction X.Moreover, the mobile route of the No.1 expression shower nozzle of the arrow among this figure.As shown in the drawing, according to said method, shower nozzle is tortuous moving between pixel print object 302.
Patent documentation 1: the spy opens 2004-306617 communique (putting down into 16 years (2004) November 4 openly)
Patent documentation 2: the spy opens 2003-66218 communique (putting down into 15 years (2003) March 5 openly)
Yet in the above-mentioned existing composition, when the shower nozzle of ink discharge device moved toward the ink-jet object, the translational speed of shower nozzle changed greatly, so the load that is added on the device is big, generation will keep precision elongated problem repair time of hitting of China ink.
Particularly, in above-mentioned XY plotter method and the above-mentioned method that alternately repeats to move toward main scanning direction and move toward sub scanning direction, shower nozzle is simultaneously followed and is quickened and deceleration, simultaneously mobile on substrate.
Yet, in order to make China ink ink-jet object high precision being hit, shower nozzle need be with the state ink-jet of quickening and slowing down little.Thereby, in arbitrary method of above-mentioned 2 kinds of methods, all need shower nozzle before printing, to make constant airspeed.Its result produces the problem that shower nozzle must repeat to follow the action (in other words, must repeat to follow the action of load) of quickening and slowing down.Also need time that constant airspeed is used, thereby produce elongated problem of processing time.
For example, in large production equipment, exist to utilize to drive the device that mounting table moves substrate.Under the situation of described process units, the substrate that importantly has weight is done one's utmost not with quickening and slowing down mobile.Be used for producing the large production equipment of liquid crystal with the CF plate, the drop that requires in recent years to make many several skins rise liquid measure hits in several meters on-chip tens microns pixel regions square to the hundreds of micron of square large glass.For this reason, must keep the position of substrate, and China ink is hit with very high precision with very high precision.Thereby, produce big problem in the direction that rapid change is moved and the design producing of speed precision in the high strike of needs China ink.
In the above-mentioned existing composition, shower nozzle is moved very at high speed toward destination locations, to shorten the processing time again.When the position of shower nozzle was changed at a high speed, the state that makes the shower nozzle in the ink-jet was that the static determinacy state is very desirable.Particularly, if shower nozzle carries out ink-jet with the state that vibrates, then the precision of hitting of China ink reduces.Especially need to improve under the situation of hitting precision of China ink, the stability of shower nozzle when ink-jet becomes essential condition.For example in inventor's etc. the research, even if distinguish the state that shower nozzle vibrates a little, the position of hitting of the China ink of ejection also produces several microns skews to tens microns degree, produces the skew of hundreds of micron sometimes.
Thereby if the state of shower nozzle is in non-static determinacy state, then ink droplet drops on the possibility height of purpose ink-jet object position in addition.Its result, making as the substrate of ink-jet object is the possibility height of unacceptable product, so yield rate reduces, produces the problem that manufacturing cost improves.
In the above-mentioned existing composition, also use 1 nozzle that moves very fast toward main scanning direction, to the ink-jet of ink-jet object.In the case, owing to reasons such as nozzlend crowd, produce the problem of ink ejection amount deficiency sometimes.For head it off, the method for the print speed that reduces main scanning direction is arranged, but the method produces the problem that causes the processing time to increase.Also have several times method, but the method also produces the problem that causes the processing time to increase to the ink-jet of same ink-jet object.The method that increases from the drop amount of the China ink of 1 nozzle ejection is arranged again, but the method produces little ink-jet object is difficult to problem that China ink is hit accurately.
Summary of the invention
The present invention finishes in view of above-mentioned problem, and its purpose is, a kind of ink discharge device and ink discharge control method that can make China ink a plurality of ink-jet objects that scatter be hit and can carry out with the weakness reason time inkjet process accurately is provided.
In order to solve above-mentioned problem, ink discharge device of the present invention, have and be arranged to the ink jet unit that can between a plurality of ink-jet objects, move, so that to scattering a plurality of ink-jet object ink-jet in the media, among its spy, described ink jet unit can relatively move with respect to described medium at main scanning direction and sub scanning direction, and have select at least follow-up in judging unit as the processing of the ink-jet target of any next order of the 1st ink-jet target ink-jet of ink-jet object or candidate ink-jet target, described judging unit is when relatively moving from described the 1st ink-jet target toward another ink-jet object, calculate the time that past main scanning direction of described ink jet unit and sub scanning direction move, whether judge the sub scanning direction traveling time smaller or equal to the main scanning direction traveling time, to this judged result of major general be used for next the order the ink-jet target or the selection of candidate ink-jet target.
In order to solve above-mentioned problem, ink discharge control method of the present invention, ink discharge device has ink jet unit, wherein, for to scattering a plurality of ink-jet object ink-jet in the media, described ink jet unit is arranged to and can be moved between a plurality of ink-jet objects, and can relatively move with respect to described medium at main scanning direction and sub scanning direction, the last stage of described ink jet unit ink-jet comprise select at least follow-up in determining step as the processing of the ink-jet target of any next order of the 1st ink-jet target ink-jet of ink-jet object or candidate ink-jet target, described determining step is when relatively moving from described the 1st ink-jet target toward another ink-jet object, calculate the time that past main scanning direction of described ink jet unit and sub scanning direction move, whether judge the sub scanning direction traveling time smaller or equal to the main scanning direction traveling time, to this judged result of major general be used for next the order the ink-jet target or the selection of candidate ink-jet target.
According to above-mentioned composition, judging unit is with the ink-jet object of sub scanning direction traveling time Xt smaller or equal to main scanning direction traveling time Yt, be judged as the ink-jet target or the candidate ink-jet target of next order, so ink jet unit is between 2 ink-jet objects when mobile, this ink jet unit is finishing before the moving of main scanning direction, and finishes mobile toward sub scanning direction.In the case, ink jet unit only moves toward main scanning direction with constant speed during to the ink-jet of ink-jet object.In other words, with the indeclinable state ink-jet of speed.Thereby, can be with the state ink-jet of quickening and slowing down little, so ink-jet accurately.And ink jet unit does not does not increase and decrease translational speed to main scanning direction, so can alleviate the load that is added in ink jet unit.
In the ink discharge device of the present invention, best described judging unit is expressed as Yt at the main scanning direction traveling time with ink jet unit, when the sub scanning direction traveling time is expressed as Xt, with Xt smaller or equal to Yt (the ink-jet object of Xt≤Yt), be judged as the candidate ink-jet target of next order, and have from candidate ink-jet target of described next order can with the shortest time from the ink-jet object that described the 1st ink-jet target arrives, the ink-jet that is defined as the ink-jet target of next order determines the unit in proper order.
Again, in the ink discharge control method of the present invention, best described determining step is expressed as Yt at the main scanning direction traveling time with ink jet unit, when the sub scanning direction traveling time is expressed as Xt, with Xt smaller or equal to Yt (the ink-jet object of Xt≤Yt), be judged as the candidate ink-jet target of next order, and have from the candidate ink-jet target of described next order and can be defined as the ink-jet order deciding step of the ink-jet target of next order with the ink-jet object of shortest time from described the 1st ink-jet target arrival.
According to above-mentioned composition, judging unit is with the ink-jet object of sub scanning direction traveling time Xt smaller or equal to main scanning direction traveling time Yt, be judged as the ink-jet target or the candidate ink-jet target of next order, so ink jet unit is between 2 ink-jet objects when mobile, this ink jet unit is finishing before the moving of main scanning direction, and finishes mobile toward sub scanning direction.In the case, ink jet unit only moves toward main scanning direction with constant speed during to the ink-jet of ink-jet object.In other words, with the indeclinable state ink-jet of speed.Thereby, can be with the state ink-jet of quickening and slowing down little, therefore ink-jet accurately.And ink jet unit does not does not increase and decrease translational speed to main scanning direction, so can alleviate the load that is added in ink jet unit.
Again, ink-jet determines the unit can be defined as ink-jet target of next order with the ink-jet object of shortest time from described the 1st ink-jet target arrival in proper order from the candidate ink-jet target of next order.Thereby, determine with time to be next ink-jet target in proper order that benchmark can more early arrive, so can carry out inkjet process with the short processing time.As a result, can provide and to make China ink a plurality of ink-jet objects that scatter be hit and can carry out with the weakness reason time ink discharge device and the ink discharge control method of inkjet process accurately.
In the ink discharge device of the present invention, best described judging unit is expressed as Yt at the main scanning direction traveling time with ink jet unit, when the sub scanning direction traveling time is expressed as Xt, from being present in the ink-jet object that leaves the near position of the 1st ink-jet target, calculate Yt and Xt successively, and judge that Xt is whether smaller or equal to Yt (Xt≤Yt), and will satisfy the ink-jet object of the condition of Xt≤Yt, be defined as the ink-jet target of next order.
Again, in the ink discharge control method of the present invention, best described determining step is expressed as Yt at the main scanning direction traveling time with ink jet unit, when the sub scanning direction traveling time is expressed as Xt, from being present in the ink-jet object that leaves the near position of the 1st ink-jet target, calculate Yt and Xt successively, and judge that whether (Xt≤Yt), and will satisfy the ink-jet object of the condition of Xt≤Yt is defined as ink-jet target of next order to Xt smaller or equal to Yt.
According to above-mentioned composition, judging unit is with the ink-jet object of sub scanning direction traveling time Xt smaller or equal to main scanning direction traveling time Yt, be judged as the candidate ink-jet target of next order, so ink jet unit is between 2 ink-jet objects when mobile, this ink jet unit is finishing before the moving of main scanning direction, and finishes mobile toward sub scanning direction.In the case, ink jet unit only moves toward main scanning direction with constant speed during to the ink-jet of ink-jet object.In other words, with the indeclinable state ink-jet of speed.Thereby, can be with the state ink-jet of quickening and slowing down little, so ink-jet accurately.And ink jet unit does not does not increase and decrease translational speed to main scanning direction, so can alleviate the load that is added in ink jet unit.
And, judging unit begins to calculate respectively successively from being present in the ink-jet object that leaves the near position of the 1st ink-jet target, and judge whether to satisfy the condition of Xt≤Yt, so when at first finding to be present in the ink-jet object of position of the condition that satisfies Xt≤Yt, with this ink-jet object, be defined as the ink-jet target of next order.Thereby, can determine next the order the ink-jet target and do not need ink-jet to determine the unit in proper order.
Needn't calculate and judge that the time point at the ink-jet target of determining next order does not calculate and judge whether to satisfy the ink-jet object of the condition of Xt≤Yt again.Thereby, can shorten the processing time.
Its result can provide to make China ink a plurality of ink-jet objects that scatter be hit and can carry out with the weakness reason time ink discharge device and the ink discharge control method of inkjet process accurately.
In the ink discharge device of the present invention, be preferably in the displacement toward the Y change in coordinate axis direction is expressed as Y 1(millimeter), toward the constant speed movement velometer of Y change in coordinate axis direction be shown a (mm/second), toward the acceleration of X change in coordinate axis direction, slowing down and stopping the needed time is expressed as d respectively 1, d 2And c (second), quicken and the distance that moves toward the X change in coordinate axis direction when slowing down all is expressed as X 2(millimeter), when being shown b (mm/second) toward the velometer of X change in coordinate axis direction when carrying out constant speed movement, described judging unit with in the ink-jet object by the satisfy condition object of (III) of (I) and the Xt that (II) obtains and Yt, be judged as candidate ink-jet target of next order or ink-jet target of next order.
Xt＝(X 1-2×X 2)/b+(d 1+d 2)+c (I)
Yt＝Y 1/a (II)
Xt≤Yt (III)
In the ink discharge control method of the present invention, be preferably in the displacement toward the Y change in coordinate axis direction is expressed as Y again, 1(millimeter), toward the constant speed movement velometer of Y change in coordinate axis direction be shown a (mm/second), toward the acceleration of X change in coordinate axis direction, slowing down and stopping the needed time is expressed as d respectively 1, d 2And c (second), quicken and the distance that moves toward the X change in coordinate axis direction when slowing down all is expressed as X 2(millimeter), when being shown b (mm/second) toward the velometer of X change in coordinate axis direction when carrying out constant speed movement, described determining step with in the ink-jet object by the satisfy condition object of (III) of (I) and the Xt that (II) obtains and Yt, be judged as candidate ink-jet target of next order or ink-jet target of next order.
Xt＝(X 1-2×X 2)/b+(d 1+d 2)+c (I)
Yt＝Y 1/a (II)
Xt?≤Yt (III)
According to above-mentioned composition, energy also compares its size according to (I) with (II) to a plurality of ink-jet calculation and object Xt and Yt separately.Its result is satisfied the ink-jet object of the condition of above-mentioned (III), be judged as the candidate ink-jet target of next order or the ink-jet target of next order.In other words, ink discharge device can simultaneously move, simultaneously select the ink-jet object of energy ink-jet with constant speed.
In the ink discharge device of the present invention, after preferably having the order of carrying out at least according to ink-jet described ink jet unit being relatively moved toward the ink-jet object, from the ink-jet control module of described ink jet unit to the control of ink-jet object ink-jet.
Again, in the ink discharge control method of the present invention, after preferably comprising the order of carrying out at least according to ink-jet described ink jet unit being relatively moved toward the ink-jet object, from the ink-jet controlled step of described ink jet unit to the control of ink-jet object ink-jet.
According to above-mentioned composition, can obtain the ink-jet object various information of the required relevant ink jet unit of ink-jet accurately.
In the ink discharge device of the present invention, best described ink-jet control module has whether the described ink jet unit of supervision is the shower nozzle static determinacy status surveillance unit of static determinacy state and the nozzle position observing unit that can detect the position of described ink jet unit.
Again, in the ink discharge control method of the present invention, best described ink-jet controlled step comprises whether the described ink jet unit of supervision is the shower nozzle static determinacy status surveillance step of static determinacy state and the nozzle position observation procedure that can detect the position of described ink jet unit.
According to above-mentioned composition, can confirm whether ink jet unit is in the static determinacy state of the degree of hitting precision that does not influence China ink.
In the ink discharge device of the present invention.Preferably have according to the supervision result of described shower nozzle static determinacy status surveillance unit and the observed result of described nozzle position observing unit, whether judge when described ink jet unit arrives the ink-jet enable position ink jettable ink-jet judging unit.
Again, in the ink discharge control method of the present invention, preferably comprise according to the supervision result of described shower nozzle static determinacy status surveillance step and the observed result of described nozzle position observation procedure, whether judge when described ink jet unit arrives the ink-jet enable position ink jettable ink-jet determining step.
According to described composition, ink jet unit is not in the situation of static determinacy state during ink-jet, and what can be judged as China ink hits the precision deterioration, and utilizes the ink-jet judging unit that ink-jet is interrupted.
In the ink discharge device of the present invention, preferably has the ink-jet interruption position administrative unit of management ink-jet interruption position according to the judged result of described ink-jet judging unit and the observed result of described nozzle position observing unit.
Again, in the ink discharge control method of the present invention, preferably comprise observed result, the ink-jet interruption position management process of management ink-jet interruption position according to the judged result and the described nozzle position observation procedure of described ink-jet determining step.
According to above-mentioned composition, can preserve the position that shower nozzle can not static determinacy etc. interrupts ink-jet under the situation, can from scatter ink-jet object in the media, manage the ink-jet object of the position of not ink-jet.
In the ink discharge device of the present invention, best described ink-jet control module has the not ink-jet object extracting unit of extracting the ink-jet object that interrupts ink-jet.
Again, in the ink discharge control method of the present invention, best described ink-jet controlled step comprises the not ink-jet object extraction step of extracting the ink-jet object that interrupts ink-jet.
According to above-mentioned composition, can interrupt ink-jet, and extract the ink-jet object of the ink-jet of being untreated.
In the ink discharge device of the present invention, the ink-jet object that ink jet unit is extracted described not ink-jet object extracting unit moves and ink-jet once more.
Again, in the ink discharge control method of the present invention, the ink-jet object that ink jet unit is extracted described not ink-jet object extraction step moves and ink-jet once more.
According to above-mentioned composition, can make the ink-jet object of shower nozzle to not ink-jet, move once more and ink-jet.
In the ink discharge device of the present invention, best described ink jet unit with the opposed state of described ink-jet object, tilt toward main scanning direction or sub scanning direction.
Again, in the ink discharge control method of the present invention, best described ink jet unit with the opposed state of described ink-jet object, tilt toward main scanning direction or sub scanning direction.
According to above-mentioned composition, described ink jet unit with the opposed state of ink-jet object, tilt toward main scanning direction or sub scanning direction, thereby can reduce distance between each nozzle of sub scanning direction.In other words, can make the quantity increase and decrease of the nozzle that on an ink-jet object, passes through.Thereby, can use a plurality of nozzles to carry out ink-jet to same ink-jet object.For example, under the situation to the many China inks of 1 ink-jet object spray volume, by ink jet unit is tilted, can be with the nozzle of the required quantity of the China ink amount that ejection needs, once ejection need the China ink of amount.And, because can be with a plurality of nozzles to the ink-jet of same ink-jet object, even the portion nozzle of ink-jet is the state of not ink-jet, the nozzle that also can utilize remaining normal ink-jet is to the ink-jet of ink-jet object.
In the ink discharge device of the present invention, best described ink jet unit is to the ink-jet in one scan of a plurality of ink-jet objects.
Again, in the ink discharge control method of the present invention, best described ink jet unit is to the ink-jet in one scan of a plurality of ink-jet objects.
According to above-mentioned composition, can be to a plurality of ink-jet objects ink-jet in of for example adjacency with one scan.Its result can shorten overall processing time.
Can fully understand other purpose of the present invention, feature and advantage by the record hereinafter.In the explanation with reference to the accompanying drawings, can understand interests of the present invention.
Description of drawings
Fig. 1 be embodiment of the present invention is shown and ink discharge device is shown and ink discharge control method in to the mode chart of the order of ink-jet object ink-jet.
Fig. 2 is the block diagram that each ingredient of described ink discharge device is shown.
Fig. 3 is the process flow diagram that described ink discharge control method is shown.
Fig. 4 (a) is the mode chart that illustrates in described ink discharge device and the ink discharge control method the inkjet process of the ink-jet object of vertical length.
Fig. 4 (b) is the mode chart that illustrates in described ink discharge device and the ink discharge control method the inkjet process of the ink-jet object of horizontal length.
Fig. 5 (a) is the mode chart that the nozzle location when shower nozzle is tilted is shown.
Fig. 5 (b) is the mode chart that the nozzle location when shower nozzle is tilted is shown.
Fig. 6 (a) is the mode chart that the nozzle location when repairing adjacent 2 pixels in the described ink discharge device simultaneously is shown.
Fig. 6 (b) is the mode chart that the nozzle location when repairing adjacent 3 pixels in the described ink discharge device simultaneously is shown.
Fig. 7 illustrates to utilize existing method in main scanning direction and sub scanning direction alternate sweep to carry out the mode chart of the order of fault location correcting process.
Fig. 8 illustrates to utilize existing XY plotter method to carry out the mode chart of the order of fault location correcting process.
Fig. 9 illustrates to utilize existing method in main scanning direction and sub scanning direction alternate sweep to carry out the mode chart of the order of fault location correcting process.
Figure 10 is the block diagram that another embodiment of the present invention is shown and the detailed composition of ink discharge device is shown.
Figure 11 is the process flow diagram of the action of the ink-jet control part in the described ink discharge device of explanation.
The mode chart of Figure 12 ink-jet portion static determinacy state that to be the relative position relation explanation that utilizes the nozzle of ink-jet portion and medium monitored by described ink-jet control part.
Label declaration
The 1st, pixel, the 2nd, pixel print object portion, the 4th, substrate, the 10th, information input unit, the 11st, handling part, the 12nd, data input part, the 13rd, judging part (judging unit), the 14th, order determination section (ink-jet determines the unit in proper order), the 15th, ink-jet control part, the 16th, ink-jet portion (ink jet unit), the 20th, shower nozzle, the 24th, shower nozzle static determinacy status surveillance portion, the 25th, nozzle position control part, the 26th, ink-jet judging part, the 27th, ink-jet interruption position management department, the 28th, not ink-jet object extraction portion, the 29th, ink-jet portion mobile control division.
Embodiment
Embodiment 1
Illustrate that according to Fig. 1～Fig. 6 an embodiment of the present invention is as follows, but the invention is not restricted to this.
Moreover, in the present embodiment, main scanning direction is described as the X change in coordinate axis direction as Y change in coordinate axis direction, sub scanning direction.As an embodiment of the present invention, describe as an example utilizing ink-jet that the correction pixel portion that is dispersed in on-chip CF plate is carried out the defect pixel reparation that ink-jet fills up.Therefore,, be taken as the China ink of red (R), green (G) and blue (B) this 3 look, and Corrections Division be taken as the zone of the rectangle in fact that is equivalent to pixel portions as the China ink that uses.Moreover according to the configuration of CF board substrate, by the relation of the direction that scans with ink discharge device, there is vertically long and laterally long situation in the zone of described rectangle in fact as shown in Figure 4, and the present invention can both adapt to arbitrary situation.Moreover, among Fig. 4, represent the direction that ink discharge device scans with arrow No.1 3.
Each ingredient of the ink discharge device of present embodiment at first, is described with Fig. 2.
The ink discharge device of present embodiment has information input unit 10, handling part 11, ink-jet control part 15 and ink-jet portion 16 (ink jet unit).Described handling part 11 also has data input part 12, judging part 13 (judging unit) and order determination section 14 (ink-jet determines the unit in proper order).
In the ink discharge device of the present invention, described ink-jet portion 16 can relatively move to medium (not shown).In other words, ink discharge device of the present invention can be (1) ink-jet portion 16 and utilizes known mobile member to utilize known mobile member can utilize that known mobile member is mobile to be formed to forming of being moved by the fixing ink-jet portion 16 of known fixedly basis or (3) ink-jet portion 16 and medium both sides to forming of being moved by the fixing medium of known fixed component or (2) medium.Moreover the concrete composition of fixed component and mobile member is not subjected to special qualification, can suitably adopt known composition in the technology of the present invention field.
Relatively moving of 16 pairs of medium of ink-jet portion by 15 controls of ink-jet control part.For example, the composition of above-mentioned (1) is then controlled moving of ink-jet portion 16 that mobile member causes; The composition of above-mentioned (2) is then controlled moving of medium that mobile member causes; The composition of above-mentioned (3) is then controlled moving of ink-jet portion 16 that mobile member causes and medium both sides.Moreover, enumerate the composition of above-mentioned (1), set forth the control of the position of 16 pairs of medium of concrete mobile control and decision ink-jet portion later.
In the ink discharge device of present embodiment, import the information of relevant ink-jet object etc. from information input unit 10.Described information input unit 10 is input to data input part 12 with information of a plurality of ink-jet objects of relevant distribution etc.As information, the information of usefulness is just passable in proper order so long as decision is to the ink-jet of scattering a plurality of ink-jet objects in the media, is not special qualification.For example, can enumerate positional information on the CF plate of ink-jet object etc.Again, as information input unit 10, available known composition is not special qualification, and for example its composition can be: utilize identification ink-jet objects such as loading the image of camera recognition device, obtain its position, its information is input to data input part 12.
The information that data input part 12 receives from described information input unit 10.The information of receiving is input to judging part 13.As data input part 12, be not special qualification, can suitably use known composition.
Judging part 13 determines the ink-jet object of at first ink-jet according to the information from data input part 12 inputs, and with it as starting point.As the system of selection of starting point, be not special restriction.For example, in a plurality of ink-jet objects on interspersing among medium, both can select Y coordinate figure maximum, and can select this value minimum again.Perhaps, can be starting point with being present in the ink-jet Object Selection of leaving the nearest position of ink-jet portion 16.
And, judging part 13 is according to the information from data input part 12 inputs, under with the situation of any ink-jet object as the 1st ink-jet target, main scanning direction traveling time (Yt) and sub scanning direction traveling time (Xt) when calculating described ink-jet portion 16 and moving from described the 1st ink-jet target toward another ink-jet object, with the ink-jet object of this sub scanning direction traveling time (Xt), be judged as the candidate ink-jet target of next order smaller or equal to main scanning direction traveling time (Yt).
Again, judging part 13 is according to the information from data input part 12 inputs, under with the situation of any ink-jet object as the 1st ink-jet target, from being present in the ink-jet object that leaves the near position of the 1st ink-jet target, main scanning direction traveling time Yt and sub scanning direction traveling time Xt when calculating described ink-jet portion 16 successively and moving from described the 1st ink-jet target toward another ink-jet object, judge that whether this sub scanning direction traveling time Xt is smaller or equal to main scanning direction traveling time Yt, and will satisfy the ink-jet object of the condition of Xt≤Yt, be defined as ink-jet target of next order.
Order determination section 14 can be defined as ink-jet target of next order with the ink-jet object of shortest time from described the 1st ink-jet target arrival from the candidate ink-jet target of described next order.Moreover, described order determination section 14 at described judging part 13 from being present in the ink-jet object that leaves the near position of described the 1st ink-jet target, when judging successively, will be judged as the object of the candidate ink-jet target of next order at first, be defined as the candidate ink-jet target of next order.Thereby, can omit described order determination section 14.
Ink-jet control part 15 can move 16 pairs of ink-jet objects of ink-jet portion again according to the order of ink-jet, again with ink-jet portion 16 with the opposed state of ink-jet object, tilt toward main scanning direction or sub scanning direction.And ink-jet control part 15 can make ink-jet portion 16 move, and the substrate that comprises the ink-jet object is moved, and is not special qualification.
The 16 pairs of ink-jet objects ink-jet of ink-jet portion.As described ink-jet portion 16, do not have specially and limit, can suitably use known composition.
The action step and the control method of the ink discharge device of present embodiment then, are described according to Fig. 3.
(about the processing of S1)
At first, information input unit 10 input decisions are to the information (S1) of the order usefulness of distribution a plurality of ink-jet object ink-jet in the media.At first will on-chip each XY coordinate figure to scattering in the media each ink-jet object, the speed that moves of the length of the X change in coordinate axis direction of the described ink-jet object when the ink-jet object is taken as rectangle and Y change in coordinate axis direction and ink-jet portion 16 past X change in coordinate axis direction and Y change in coordinate axis direction etc. is as input information.And then, toward the length (length of the Y change in coordinate axis direction of described ink-jet object) that the Y change in coordinate axis direction moves, also add when ink-jet portion 16 arrives the X coordinate figure of ink jetting positions and stop the required time, this stops distance, the acceleration-deceleration when past X change in coordinate axis direction moves to move toward the Y change in coordinate axis direction in the required time when adding the ink-jet of ink-jet object.
The set of the undetermined ink-jet object of ink-jet order is expressed as set R1, and its key element is expressed as P (i), wherein i=1～n (n is an ink-jet object number positional).And, but being determined as the ink-jet object that the set of the ink-jet object of ink-jet order is expressed as toward the Y change in coordinate axis direction is unidirectional during moving, shower nozzle 20 gathers R2, its key element is expressed as PP (j) (k), j=1～s, k=1～m.Moreover, with shower nozzle 20 under the unidirectional situation that begins to move to mobile being defined as " 1 moving " that then changes till the moving direction of Y coordinate axis toward main scanning direction, described j represents (k) the mobile number of times of the shower nozzle 20 during ink-jet to PP (j), and s represents total mobile number of times.And k represents that m represents the number by the ink-jet object that moves middle ink-jet of j regulation by the ink-jet order of the ink-jet object of the mobile middle ink-jet of j regulation.Moreover, the initial value of j and k is taken as 1 respectively.
(about the processing of S2)
Then, by the information decision starting point (S2) of judging part 13 according to input.As the determining method of starting point, for example change each ink-jet object of row at on-chip Y coordinate figure according to each ink-jet object.At this moment, for example can change row's data by Y coordinate figure big order or little order.At this moment, under the situation of negative direction with the Y coordinate axis, can be arranged in order with the Y coordinate figure from big as main scanning direction; Under the situation of positive dirction with the Y coordinate axis, can be arranged in order with the Y coordinate figure from little as main scanning direction.As the method that changes each ink-jet object of row, also can change row successively from leave the near object of ink-jet portion 16 as air line distance again.Moreover the benchmark that changes row's ink-jet object has various benchmark, is not special qualification.
Being set R1 if comprise the set that changes the whole ink-jet objects behind the row, is that the mode of P (i) and i=1～n changes each ink-jet object of row with the key element of set R1 then.Then, from then on gather and select and take out first key element P (1) among the R1, after it is eliminated from set R1, newly insert set R2.At this moment, the key element of set R1 is P (i), wherein i=2～n; The set R2 key element be PP (j) (k)=P (1).So, with this PP (j) (k) as starting point.
(about the processing of S3)
Then, carry out the selection (S3) of candidate ink-jet target by judging part 13.Particularly, (k) (be P (i), j=2～n) moves and arrives the required past X change in coordinate axis direction of this object and the traveling time of Y change in coordinate axis direction toward each the ink-jet object as the key element of set R1 from PP (j) to calculate ink-jet portion 16.Then, will be judged as candidate ink-jet target smaller or equal to the key element in the set R1 of the traveling time of Y change in coordinate axis direction toward the traveling time of X change in coordinate axis direction.
At this moment, the order of judging the key element (being each ink-jet object) of set R1 does not have special qualification.As the order of judging, can judge successively from leaving the near object of described starting point.In the case,, be defined as the ink-jet target of next order, needn't judge whether the Xt≤Yt that satisfies condition whole ink-jet objects with the object of the Xt≤Yt that satisfies condition at first.
Below, illustrate from PP (j) and (k) move and arrive the computing method of the traveling time of required past X change in coordinate axis direction of this key element and Y change in coordinate axis direction toward each key element of set R1.
At first, disclose toward the computing method of the traveling time of Y change in coordinate axis direction.Here, establishing traveling time toward the Y change in coordinate axis direction is that the displacement of Yt (second), past Y change in coordinate axis direction is Y 1The constant speed movement speed of (millimeter), past Y change in coordinate axis direction is a (mm/second), then by following formula (1) expression Yt.
Yt=Y1/a formula (1)
Then, disclose toward the computing method of the traveling time of X change in coordinate axis direction.Comprise acceleration, constant speed movement, slow down and stop this 4 kinds of processes toward X change in coordinate axis direction mobile.If toward the traveling time of X change in coordinate axis direction is Xt, then Xt is acceleration, constant speed movement, slows down and stop this 4 kinds of process required time sums.Therefore, is shown the time that needs in each process below.Moreover,, stop to be meant that the 16 pairs of X change in coordinate axis direction of ink-jet portion that slow down after finishing form static process here.
At first, will speed up, slow down and stop the required time and be expressed as d respectively 1, d 2And c (second), the distance that moves toward the X change in coordinate axis direction when acceleration and deceleration all is expressed as X 2(millimeter).If at this moment the displacement toward the X change in coordinate axis direction is X 1, then by the distance X of formula (2) expression constant speed movement 3
X 3=X 1-2 * X 2Formula (2)
At this moment, the speed of establishing when carrying out constant speed movement is b (mm/second), is then carried out the time d of constant speed movement by formula (3) expression 3
d 3=(X 1-2 * X 2)/b formula (3)
Here, Xt is acceleration, constant speed movement, slow down and stop this 4 kinds of process required time sums, by formula
(4) expression.
Xt=d 3+ d 1+ d 2+ c=(X1-2 * X2)/b+ (d1+d2)+c formula (4)
Thereby, be candidate ink-jet target with the Yt of formula (1) and formula (4) expression and the Object Selection that Xt satisfies the condition of formula (5).
Xt≤Yt formula (5)
Moreover establishing toward the acceleration of X change in coordinate axis direction is K 1(mm/second 2), then represent the speed of X change in coordinate axis direction is reached the preceding time d of uniform velocity b (mm/second) by formula (6) 1
d 1=b/K 1Formula (6)
Equally, establishing toward the retarded velocity of X change in coordinate axis direction is K 2(mm/second 2), then represent the time d that deceleration needs by formula (7) 2
d 2=b/K 2Formula (7)
And stopping the time c to need can make ink discharge device work of the present invention by actual, measures this value with experiment method, thereby obtains.
Moreover, use above-mentioned variable, calculate toward the traveling time of X change in coordinate axis direction and the traveling time of past Y change in coordinate axis direction by formula (1)～formula (7), but be not limited to this computing method.For example, also can consider other variable, calculate toward the traveling time of X change in coordinate axis direction and the traveling time of past Y change in coordinate axis direction.Perhaps, it is very little to omit among described d1, d2, d3 and the c its value.
(about the processing of S4)
Then, order determination section 14 will can be defined as starting point (S4) of next order with the ink-jet object of shortest time arrival from described starting point from described candidate ink-jet target.Moreover, from leaving the near ink-jet object of described starting point, under the situation about judging successively,, be defined as the ink-jet target of next order among the S3 with the object of the Xt≤Yt that satisfies condition at first.In the case, described judging part 13 also can be determined ink-jet target of next order.
(about the processing of S5)
Among the S4, when having the key element select in the set R1, with the key element P (j) of the ink-jet object of this selection (2≤j≤n) from set R1 elimination, and add to and gather R2 (PP (j) (k), k=k+1`).Then, with this key element as new starting point and proceed to the processing of S3.
Among the S4, when there is not the key element that can select in set in the R1, in a main scanning direction mobile, there is not the ink-jet object of energy ink-jet, thereby the processing of advancing full S6.
(about the processing of S6)
When whole ink-jet objects are selected as the key element of gathering R2, determine all processing sequences of the ink-jet objects of distribution, after the processing of end S1 to S5, proceed to the processing of S7.On the other hand, when there is unselected ink-jet object in the R2 in set, return S2.When getting back to the new starting point of S2 decision, shower nozzle 20 1 moves toward the direction opposite with last time in the face of main scanning direction, one side select can ink-jet the ink-jet object.At this moment, expression shower nozzle 20 is progressively increased toward the value of the mobile number of times of main scanning direction, become j=j+1.And, make the k of expression ink-jet order return initial value, become k=1 (S6).
14 processing of carrying out above-mentioned S2 to S6 like that as indicated above of order determination section.Order determination section 14 is to the ink-jet object of whole distributions ink-jet successively the time, and decision makes the processing time the shortest to the ink-jet order of the ink-jet object that scatters.
(about the processing of S7)
The order of the key element that comprises among the set R2 of ink-jet control part 15 and ink-jet portion 16 according to S1～S6 decision, according to the number of times that moves toward main scanning direction to ink-jet object ink-jet (S7).As a result, for example, as shown in Figure 1, be dispersed under the on-chip situation at a plurality of ink-jet objects, the order shown in No.1 is carried out ink-jet according to the arrow of Fig. 1.
Fig. 1 illustrates the ink-jet course of the ink discharge device and the ink discharge control method of present embodiment.The a plurality of pixel print object portion 2 that exist to scatter on the substrate 4.Ink-jet portion 16 one side is the path shown in No.1 by arrow among this figure, and one side is toward 2 ink-jets of pixel print object portion.Described ink-jet portion 16 before finishing to move toward direction of scanning Y, finishes mobile toward sub scanning direction X between 2 ink-jet objects when mobile.Thereby in the ink discharge device and ink discharge control method of present embodiment, when 16 ink-jets of ink-jet portion, the described ink-jet 16 past main scanning direction Y of portion carry out constant speed movement, so can be to the 2 accurate ink-jets of pixel print object portion.
At this moment, can utilize ink-jet control part 15, make ink-jet portion 16 with the opposed state of ink-jet object, tilt toward main scanning direction or sub scanning direction.Thus, can reduce distance between each nozzle of sub scanning direction.Thereby, can be with a plurality of nozzles to the ink-jet of same ink-jet object.Distance between each nozzle of sub scanning direction can be by the angle of inclination decision of ink-jet portion 16.Moreover the angle of inclination of ink-jet portion 16 does not have special qualification, can select.For example, can especially set described angle of inclination according to the size of ink-jet object according to the length of its X change in coordinate axis direction and the size of ink droplet.
For example, shown in Fig. 5 (a) and (b), the ink discharge device of present embodiment and ink discharge control method can with ink-jet portion 16 with the opposed state of ink-jet object, tilt toward main scanning direction or sub scanning direction.Below, the nozzle arrangement toward the front and back of main scanning direction or sub scanning direction inclination with ink-jet portion 16 is described.Moreover among Fig. 5 and Fig. 6, shower nozzle 20 is equivalent to ink-jet portion 16.
Shown in Fig. 5 (a), shower nozzle 20 has nozzle 21,22,23, and disposes opposedly with substrate 4.Moreover, to establish shower nozzle 20 one sides and move toward the direction shown in the arrow No.1 3, one side is carried out ink-jet.And substrate 4 has a plurality of pixels 1.In the described pixel 1, the pixel of the China ink of crimson (R), green (G) and blue (B) look is represented with pixel 5,6,7 respectively.Shower nozzle 20 has a plurality of nozzles 21,22,23, with the China ink of difference crimson (R), green (G) and blue (B) look.In the described nozzle, the nozzle of pixel 5,6,7 ink-jets is represented with black.That is, shown in Fig. 5 (a), respectively by 21,22,23 pairs of pixel 5,6,7 ink-jets of 1 nozzle.
Again, shown in Fig. 5 (b), nozzle 20 can with substrate 4 opposed states, tilt toward main scanning direction or sub scanning direction.Shown in Fig. 5 (b), by shower nozzle 20 is tilted, can be respectively with 21,22,23 pairs of pixel 5,6,7 ink-jets of 2 nozzles.
On the other hand, the inclination of shower nozzle 20 is fixed as under the situations of 80 degree for example,,, makes defect pixel obtain filling up the ink droplet quantity of usefulness with decision so be the amount of droplets of unit adjustment ejection with each nozzle because the interval of adjacent ink droplet is constant.Additional disclosure is once spent by shower nozzle 20 inclinations about 80 that will have the nozzle ink discharge device at interval that is equivalent to 150 point/inches (dpi), and the distance between the nozzle of sub scanning direction is 30 microns (μ m).If pixel wide is 100 microns,, thereby can in same pixel, print then from least 2 nozzle ink jets.The amount of droplets of these 2 nozzle ejections of may command is to guarantee to remedy the required drop total amount of defect pixel.
When pixel wide is 300 microns like that shown in Fig. 4 (b), under the above-mentioned situation, in pixel wide, admit 9 nozzles again.At this moment, though in 9 nozzles for example the state of 1 nozzle be under the situation of not good enough state, the also China ink of the drop amount that can wish with 8 remaining nozzles ejections.Moreover the direction that ink discharge device scans is represented with arrow No.1 3.
Again, as shown in Figure 6, use the ink discharge device of present embodiment, when then defect pixel being repaired, except that the situation of revising monochromatic defect pixels such as pixel decolouring, leak the correction of 3 adjacent defect pixels of 2 adjacent defect pixels such as RG, GB that look etc. produces or BR or RGB, GBR, BRG etc. between the pixel that can also carry out simultaneously causing because of foreign matters such as dust.
For this reason, make the shower nozzle 20 of ink discharge device of usefulness of all kinds close, form overlappingly to the nozzle location of each shower nozzle 20 of main scanning direction at least, and for example mentioned abovely like that shower nozzle 20 is tilted, thereby the ink-jet that can effectively reduce sub scanning direction at interval.According to adjacent pixel location, the nozzle location of shower nozzle 20 is tailored into and can repairs adjacent defect pixel with not homochromy China ink, thus can be with multiple different China ink repair-deficiency pixel in one scan.
For example, shown in Fig. 6 (a), the ink discharge device of present embodiment and ink discharge control method can be repaired 2 adjacent pixels in one scan.In the case, can repair adjacent pixels 5,6 with nozzle 21,22 respectively.And shown in Fig. 6 (b), the ink discharge device of present embodiment and ink discharge control method can be repaired 3 adjacent pixels in one scan.In the case, by shower nozzle 20 is tilted, can repair adjacent pixels 5,6,7 with nozzle 21,22,23 respectively.
Embodiment 2
Illustrate that according to Figure 10 to Figure 12 another embodiment of the present invention is as follows, but the invention is not restricted to this.Moreover, for convenience of description, to have with embodiment 1 in the member of the member identical functions used mark same structure piece number, omit its explanation.
In the above-mentioned embodiment 1, as indicated above, ink-jet control part 15 carries out order according to ink-jet makes not only shift positions but also toward controls such as main scanning direction or sub scanning direction inclinations of ink-jet portion 16, in other words, carry out ink-jet portion 16 to the relative position of ink-jet object or the control of configuration.
To this point, in the present embodiment, except that the control of carrying out above-mentioned position or configuration, in other words the ink-jet state that also monitors ink-jet portion 16, also after the status surveillance that carries out ink-jet portion 16, carries out ink-jet control to be used for the control of ink-jet judgement etc.
Particularly, as shown in figure 10, the ink discharge device of present embodiment, its composition can be enumerated: have information input unit 10, handling part 11, ink-jet control part 15, ink-jet portion 16, this point is identical with above-mentioned embodiment 1, but ink-jet control part 15 also has shower nozzle static determinacy status surveillance portion 24, nozzle position observation unit 26, ink-jet judging part 26, ink-jet interruption position management department 27, not ink-jet object extraction portion 28 and ink-jet portion mobile control division 29.
Ink-jet control part 15 utilizes shower nozzle static determinacy status surveillance portion 24, monitors in ink-jet portion 16 whether this ink-jet portion 16 is in the static determinacy state during the enterprising line scanning of substrate.Then, utilize the nozzle position observation unit 25 normal ink-jet portions 16 of observing in on-chip position.Moreover in this instructions, " static determinacy state " means the state that the relative vibration of 16 pairs of medium of ink-jet portion is calmed down in preassigned distance range.Described " preassigned scope " means ink-jet portion 16 can make black high precision hit the scope of the degree of ink-jet object, does not have specially to limit.Described scope for example can be hit suitably selections such as the size of precision or ink-jet object as required.
Described oscillation distances can for example hereinafter described be obtained like that.For example, as shown in figure 12, ink-jet portion 16 (not shown among Figure 12) when not vibrated, medium 40 is not expressed as T1 (reference point) to the point on the vertical described medium 40 of drawing (dotting among Figure 12) when falling described medium 40 of line from the nozzle 30 (representing with thick line the figure) of ink-jet portion 16.Then, will utilize shower nozzle static determinacy status surveillance portion 24 (not shown among Figure 12) when monitoring shown in fine rule among the figure like that nozzle 30 as described in the ink-jet portion 16 be assumed to be the nozzle 30a of monitored state and from then on monitored state nozzle 30a line vertical draw fall as described in during medium 40 as described in point on the medium 40 be expressed as T2.At this moment, described oscillation distances can be defined as between T2 and the T1 apart from T.In other words, can will be defined as the static determinacy state apart from T (T=T2-T1) for the state of calming down in the scope of preassigned distance between T2 and the T1.Moreover it is overlapping with the nozzle 30a of monitored state that vibrationless desirable static determinacy state means the described nozzle 30 that is positioned at reference point, thereby be in the state of oscillation distances T=T2-T1=0.
As indicated above, as described oscillation distances, be not special qualification, but with 1 micron with interior be good.And, for will be from the hitting precision and be controlled at of the China ink of ink-jet portion 16 ± 5 microns, described oscillation distances be 0.3 micron with interior then better.
In the ink-jet control part 15,, monitor ink-jet portions 16 static determinacy state whether on substrate by shower nozzle static determinacy status surveillance portion 24 at the time point that is utilizing nozzle position observation unit 25 observation ink-jet portions 16 to arrive to the ink-jet enable position of purpose ink-jet object starting point ink-jet.Then, be judged as ink-jet portion 16 when being in the static determinacy state, start ink-jets, make China ink hit the ink-jet object from ink-jet portion 16 by ink-jet judging part 26.On the other hand, be judged as ink-jet portion 16 when being in non-static determinacy state (vibration), stop ink-jet, end ink-jet the ink-jet object by judging part 26.
At this moment, ink-jet interruption position management department 27 takes out relevant information of interrupting the position of ink-jet from nozzle position observation unit 25, manages as interruption position.Moreover, " manage " information of storing ink-jet portion 16 position in the media when interrupting ink-jet that means here.
Then, not ink-jet object extraction portion 28 extracts the ink-jet object that interrupts ink-jet according to the interruption position of ink-jet interruption position management department 27 management with by the positional information of each ink-jet object of data input part 12 inputs.Ink discharge device of the present invention is to the ink-jet object of described extraction, ink-jet once more, institute so that ink-jet portion 16 move, and make the China ink spray toward and hit the ink-jet object of not ink-jet.Moreover the information by ink-jet object that relevant not ink-jet object extraction portion 28 is extracted newly is input to data input part 12, can tackle moving and ink-jet of this ink-jet portion 16 that carries out once more.
The action step and the control method of present embodiment ink discharge device then, are described according to Figure 11.Moreover, the action step of present embodiment ink discharge device and control method, wherein explanation identical in S 1～S6 and the embodiment 1.Thereby, S 1～S6 is omitted its explanation.Again, identical among the S7 with embodiment 1, the order of the key element that comprises among the set R2 of ink-jet control part 15 and ink-jet portion 16 according to S1～S6 decision, according to the number of times that moves toward main scanning direction to the ink-jet of ink-jet object.Among the S7 of present embodiment, can also carry out the status surveillance of ink-jet portion 16 after, carry out ink-jet control.The S7 of the action step of present embodiment ink discharge device and control method is further described its process with the process flow diagram of Figure 11.Moreover the S7 of present embodiment comprises process S7-1～S7-8.Thereby, the following describes each process S7-1～S7-8.
(about the processing of S7-1)
The processing sequence of each ink-jet object that ink-jet control part 16 is deposited in the determination section 14 in order makes ink-jet portion 16 move (S7-1) toward purpose ink-jet object on substrate.At this moment, ink-jet control part 15 utilizes shower nozzle static determinacy status surveillance portion 24 and nozzle position observation unit 25 often to carry out the observation of the position of the supervision of static determinacy state of ink-jet portion 16 and ink-jet portion 16.
(about the processing of S7-2)
In the ink-jet control part 15, in case ink-jet portion 16 arrives the ink-jet enable positions, but ink-jet judging part 26 is just according to judge whether ink-jet of ink-jet portion 26 from the information of the relevant static determinacy state of shower nozzle static determinacy status surveillance portion 24.When ink-jet judging part 26 is in the static determinacy state in ink-jet portion 16, but be judged as ink-jet, and, be judged as to stop ink-jet in that ink-jet portion 16 is non-when being in the static determinacy state.Moreover " being in the static determinacy state " is meant the state (S7-2) of vibration situation that (for example 1 micron) calms down in preassigned scope of being equivalent to ink-jet portion 16 etc.
(about the processing of S7-3)
Ink-jet control part 15 is being judged as ink-jet portion 16 when being in the static determinacy state by ink-jet judging part 26, make ink-jet portion 16 with the China ink spray toward and hit purpose ink-jet object (S7-3).
(about the processing of S7-4)
On the other hand, when being judged as by ink-jet judging part 26 that ink-jet portion 16 is non-to be in the static determinacy state, ink-jet portion 16 does not carry out ink-jet, by purpose ink-jet object, moves (S7-4) toward the ink-jet object's position that becomes next target.
(about the processing of S7-5)
Under the described situation of not carrying out ink-jet,, and preserved management (S7-5) to the ink-jet enable position of the ink-jet object that does not carry out ink-jet of ink-jet interruption position management department 27 input nozzle position observation units, 25 observations.(about the processing of S7-6)
15 pairs of ink-jet objects of ink-jet control part carry out the processing of S7-1 to S7-5 successively, 16 pairs of whole ink-jet objects of ink-jet portion are moved, and finish a series of ink-jet (S7-6).
(about the processing of S7-7)
Ink-jet control part 15 judges whether take care of relevant information of not carrying out the ink-jet enable position of ink-jet in the ink-jet interruption position management department 27, and when not taking care of, finishes the processing of S7.
(about the processing of S7-8)
When whether taking care of the information of relevant ink-jet enable position of not carrying out ink-jet in the ink-jet interruption position management department 27, produce the data that can be input to data input part 12 by not ink-jet object extraction portion 28 according to the information of keeping in the ink-jet interruption position management department 27.Then, return, ink-jet portion 16 is moved, the processing (S7-8) that the ink-jet object that does not carry out ink-jet is carried out ink-jet and hits of the processing of these data as the S1 of information.
So far, with embodiment 1 and embodiment 2 example as preferred forms, ink discharge device of the present invention and ink discharge control method have been described, but the present invention is not limited thereto certainly, for example it forms the control of the control of the control also can switch embodiment 1 explanation as required and embodiment 2 explanations, can ignore the part of each unit that embodiment 2 cited ink-jet control parts 15 have again or add other unit.The present invention also can be constructed as follows.
In order to solve above-mentioned problem, ink discharge device of the present invention, have and be arranged to the ink jet unit that can between a plurality of ink-jet objects, move, so that to scattering a plurality of ink-jet object ink-jet in the media, wherein, described ink jet unit can move on main scanning direction and sub scanning direction and move with constant speed at main scanning direction, and have and calculate described ink jet unit from the main scanning direction traveling time Yt when the 1st ink-jet target of ink-jet object moves toward another ink-jet target arbitrarily and sub scanning direction traveling time Xt and with the ink-jet object of sub scanning direction traveling time Xt smaller or equal to main scanning direction traveling time Yt, be judged as the judging unit of the candidate ink-jet target of next order, and can be with the ink-jet object of shortest time from described the 1st ink-jet target arrival from the candidate ink-jet target of described next order, the ink-jet that is defined as the ink-jet target of next order determines the unit in proper order.
Again, in order to solve above-mentioned problem, ink discharge control method of the present invention, have and be arranged to the ink jet unit that can between a plurality of ink-jet objects, move, so that to scattering a plurality of ink-jet object ink-jet in the media, wherein, described ink jet unit can move on main scanning direction and sub scanning direction and move with constant speed at main scanning direction, and have and calculate described ink jet unit from the main scanning direction traveling time Yt when the 1st ink-jet target of ink-jet object moves toward another ink-jet target arbitrarily and sub scanning direction traveling time Xt and with the ink-jet object of sub scanning direction traveling time Xt smaller or equal to main scanning direction traveling time Yt, be judged as the determining step of the candidate ink-jet target of next order, and from the candidate ink-jet target of described next order, can be defined as the ink-jet order deciding step of the ink-jet target of next order with the ink-jet object of shortest time from described the 1st ink-jet target arrival.
According to above-mentioned composition, judging unit is with the ink-jet object of sub scanning direction traveling time Xt smaller or equal to main scanning direction traveling time Yt, be judged as the ink-jet target or the candidate ink-jet target of next order, so ink jet unit is between 2 ink-jet objects when mobile, this ink jet unit is finishing before the moving of main scanning direction, and finishes mobile toward sub scanning direction.In the case, ink jet unit only moves toward main scanning direction with constant speed during to the ink-jet of ink-jet object.In other words, with the indeclinable state ink-jet of speed.Thereby, can be with the state ink-jet of quickening and slowing down little, so ink-jet accurately.And ink jet unit does not does not increase and decrease translational speed to main scanning direction, so can alleviate the load that is added in ink jet unit.
Again, ink-jet determines the unit can be defined as ink-jet target of next order with the ink-jet object of shortest time from described the 1st ink-jet target arrival in proper order from the candidate ink-jet target of next order.Thereby, determine with time to be next ink-jet target in proper order that benchmark can more early arrive, so can carry out inkjet process with the short processing time.As a result, can provide and to make China ink a plurality of ink-jet objects that scatter be hit and can carry out with the weakness reason time ink discharge device and the ink discharge control method of inkjet process accurately.
In order to solve above-mentioned problem, ink discharge device of the present invention, have and be arranged to the ink jet unit that can between a plurality of ink-jet objects, move, so that to scattering a plurality of ink-jet object ink-jet in the media, wherein, described ink jet unit can move on main scanning direction and sub scanning direction and move with constant speed at main scanning direction, and have main scanning direction traveling time Yt and a sub scanning direction traveling time Xt when being present in the ink-jet object that leaves as the near position of the 1st ink jet unit of any ink jet unit and beginning to calculate described ink jet unit successively and move from the 1st ink-jet target toward another ink-jet target, and judge that this sub scanning direction traveling time Xt whether smaller or equal to the ink-jet object of the main scanning direction traveling time Yt and the Xt≤Yt that will satisfy condition, is judged as the judging unit of the candidate ink-jet target of next order.
Again, in order to solve above-mentioned problem, ink discharge control method of the present invention, have and be arranged to the ink jet unit that can between a plurality of ink-jet objects, move, so that to scattering a plurality of ink-jet object ink-jet in the media, wherein, described ink jet unit can move on main scanning direction and sub scanning direction and move with constant speed at main scanning direction, and have main scanning direction traveling time Yt and a sub scanning direction traveling time Xt when being present in the ink-jet object that leaves as the near position of the 1st ink jet unit of any ink jet unit and beginning to calculate described ink jet unit successively and move from the 1st ink-jet target toward another ink-jet target, and judge that this sub scanning direction traveling time Xt whether smaller or equal to the ink-jet object of the main scanning direction traveling time Yt and the Xt≤Yt that will satisfy condition, is judged as the determining step of the candidate ink-jet target of next order.
According to above-mentioned composition, judging unit is with the ink-jet object of sub scanning direction traveling time Xt smaller or equal to main scanning direction traveling time Yt, be judged as the candidate ink-jet target of next order, so ink jet unit is between 2 ink-jet objects when mobile, this ink jet unit is finishing before the moving of main scanning direction, and finishes mobile toward sub scanning direction.In the case, ink jet unit only moves toward main scanning direction with constant speed during to the ink-jet of ink-jet object.In other words, with the indeclinable state ink-jet of speed.Thereby, can be with the state ink-jet of quickening and slowing down little, so ink-jet accurately.And ink jet unit does not does not increase and decrease translational speed to main scanning direction, so can alleviate the load that is added in ink jet unit.
And, judging unit begins to calculate respectively successively from being present in the ink-jet object that leaves the near position of the 1st ink-jet target, and judge whether to satisfy the condition of Xt≤Yt, so when at first finding to be present in the ink-jet object of the condition that satisfies Xt≤Yt, with this ink-jet object, be defined as the ink-jet target of next order.Thereby, can determine next the order the ink-jet target and do not need ink-jet to determine the unit in proper order.
Needn't calculate and judge that the time point at the ink-jet target of determining next order does not calculate and judge whether to satisfy the ink-jet object of the condition of Xt≤Yt again.Thereby, can shorten the processing time.
Its result can provide to make China ink a plurality of ink-jet objects that scatter be hit and can carry out with the weakness reason time ink discharge device and the ink discharge control method of inkjet process accurately.
In the ink discharge device of the present invention, be preferably in the displacement toward the Y change in coordinate axis direction is expressed as Y 1(millimeter), toward the constant speed movement velometer of Y change in coordinate axis direction be shown a (mm/second), toward the acceleration of X change in coordinate axis direction, slowing down and stopping the needed time is expressed as d respectively 1, d 2And c (second), quicken and the distance that moves toward the X change in coordinate axis direction when slowing down all is expressed as X 2(millimeter), when being shown b (mm/second) toward the velometer of X change in coordinate axis direction when carrying out constant speed movement, described judging unit with in the ink-jet object by the satisfy condition object of (III) of (I) and the Xt that (II) obtains and Yt, be judged as next candidate ink-jet target in proper order.
Xt＝(X 1-2×X 2)/b+(d 1+d 2)+c (I)
Yt＝Y 1/a (II)
Xt≤Yt (III)
In the ink discharge control method of the present invention, be preferably in the displacement toward the Y change in coordinate axis direction is expressed as Y again, 1(millimeter), toward the constant speed movement velometer of Y change in coordinate axis direction be shown a (mm/second), toward the acceleration of X change in coordinate axis direction, slowing down and stopping the needed time is expressed as d respectively 1, d 2And c (second), quicken and the distance that moves toward the X change in coordinate axis direction when slowing down all is expressed as X 2(millimeter), when being shown b (mm/second) toward the velometer of X change in coordinate axis direction when carrying out constant speed movement, described determining step with in the ink-jet object by the satisfy condition object of (III) of (I) and the Xt that (II) obtains and Yt, be judged as next candidate ink-jet target in proper order.
Xt＝(X 1-2×X 2)/b+(d 1+d 2)+c (I)
Yt＝Y 1/a (II)
Xt≤Yt (III)
According to above-mentioned composition, energy also compares its size according to (I) with (II) to a plurality of ink-jet calculation and object Xt and Yt separately.Its result is satisfied the ink-jet object of the condition of above-mentioned (III), be judged as the candidate ink-jet target of next order.In other words, ink discharge device can one side move the ink-jet object that one side is selected the energy ink-jet with constant speed.
In the ink discharge device of the present invention, best described ink jet unit with the opposed state of described ink-jet object, tilt toward main scanning direction or sub scanning direction.
Again, in the ink discharge control method of the present invention, best described ink jet unit with the opposed state of described ink-jet object, tilt toward main scanning direction or sub scanning direction.
According to above-mentioned composition, described ink jet unit with the opposed state of ink-jet object, tilt toward main scanning direction or sub scanning direction, thereby can reduce distance between each nozzle of sub scanning direction.In other words, can make the quantity increase and decrease of the nozzle that on an ink-jet object, passes through.Thereby, can use a plurality of nozzles to carry out ink-jet to same ink-jet object.For example, under the situation to the many China inks of 1 ink-jet object spray volume, by ink jet unit is tilted, can be with the nozzle of the required quantity of the China ink amount that ejection needs, once ejection need the China ink of amount.And, because can be with a plurality of nozzles to the ink-jet of same ink-jet object, even the portion nozzle of ink-jet is the state of not ink-jet, the nozzle that also can utilize remaining normal ink-jet is to the ink-jet of ink-jet object.
In the ink discharge device of the present invention, best described ink jet unit is to the ink-jet in one scan of a plurality of ink-jet objects.
Again, in the ink discharge control method of the present invention, best described ink jet unit is to the ink-jet in one scan of a plurality of ink-jet objects.
According to above-mentioned composition, can be to for example adjacent a plurality of ink-jet object ink-jet in one scan.Thereby, can shorten overall processing time.
The invention is not restricted to the respective embodiments described above, can do various conversion in scope shown in claims, technical scope of the present invention also comprises the embodiment that obtains behind the technical unit that appropriate combination discloses respectively in different embodiments.
Industrial practicality
In sum, ink discharge device of the present invention and ink discharge control method, ink jet unit can be at main scanning direction Relatively move with respect to described medium with sub scanning direction, and have select at least follow-up in work For the processing of the ink-jet target of any next order of the 1st ink-jet target ink-jet of ink-jet object or candidate ink-jet target Judging unit (determining step), described judging unit (determining step) is from described the 1st ink-jet target toward another ink-jet When object relatively moves, calculate the time that the past main scanning direction of described ink jet unit and sub scanning direction move, Whether judge the sub scanning direction traveling time smaller or equal to the main scanning direction traveling time, this judges knot to the major general Fruit is used for the ink-jet target of next order or the selection of candidate ink-jet target.
Its result, the effect that obtains provide and can make China ink hit accurately a plurality of ink-jet objects and the energy of distribution Carry out ink discharge device and the ink discharge control method of inkjet process with the short time.
Again, ink discharge device of the present invention and ink discharge control method are because some the former thereby ink-jet on the device is single Ink-jet in the non-situation that is in the static determinacy state, can be interrupted in unit when arriving the ink-jet enable position. Its result gets Effect can prevent from hitting ink-jet under the state of precision deterioration, to make substrate not be subjected to China ink dirty not non-requiredly Dye.
And, can extract the ink-jet object that interrupts ink-jet, to this ink-jet object ink-jet, fill up then. As a result, the ink-jet object of the effect that obtains not residual interruption ink-jet on substrate can form whole ink-jets pair Resemble the second best in quality substrate of stopping out.
Among the present invention, ink-jet section one moves with constant speed in the face of the main scanning direction that is equivalent to Print direction Moving, one in the face of the ink-jet of ink-jet object. Its result can make black high accuracy hit a plurality of ink-jet objects of distribution, And can carry out inkjet process with the short time. Therefore, the present invention can be for the manufacture of using with printer and liquid crystal CF plate process units is the various ink discharge devices of representative or the field of its parts.

Claims (24)

1, a kind of ink discharge device has and be arranged to the ink jet unit that can move between a plurality of ink-jet object, so that, it is characterized in that to scattering a plurality of ink-jet object ink-jet in the media,
Described ink jet unit can relatively move with respect to described medium at main scanning direction and sub scanning direction, and
Also have select at least follow-up in judging unit as the processing of the ink-jet target of any next order of the 1st ink-jet target ink-jet of ink-jet object or candidate ink-jet target,
Described judging unit is when relatively moving from described the 1st ink-jet target toward another ink-jet object, calculate the time that past main scanning direction of described ink jet unit and sub scanning direction move, whether judge the sub scanning direction traveling time smaller or equal to the main scanning direction traveling time, to this judged result of major general be used for next the order the ink-jet target or the selection of candidate ink-jet target.
2, the ink discharge device described in claim 1 is characterized in that,
Described judging unit is expressed as Yt at the main scanning direction traveling time with ink jet unit, when the sub scanning direction traveling time is expressed as Xt, with the ink-jet object of Xt smaller or equal to Yt, is judged as the candidate ink-jet target of next order, and
Also having can be with the ink-jet object of shortest time from described the 1st ink-jet target arrival from the candidate ink-jet target of described next order, and the ink-jet that is defined as the ink-jet target of next order determines the unit in proper order.
3, the ink discharge device described in claim 1 is characterized in that,
Described judging unit is expressed as Yt at the main scanning direction traveling time with ink jet unit, when the sub scanning direction traveling time is expressed as Xt, from being present in the ink-jet object that leaves the near position of the 1st ink-jet target, calculate Yt and Xt successively, and whether judge Xt smaller or equal to Yt, and
To satisfy the ink-jet object of the condition of Xt≤Yt, be defined as the ink-jet target of next order.
4, as claim 2 or 3 described ink discharge devices, it is characterized in that,
To be expressed as Y toward the displacement of Y change in coordinate axis direction 1, toward the constant speed movement velometer of Y change in coordinate axis direction be shown a, toward the acceleration of X change in coordinate axis direction, slowing down and stopping the needed time is expressed as d respectively 1, d 2The distance that moves toward the X change in coordinate axis direction during with c, acceleration and deceleration all is expressed as X 2, be shown b toward the velometer of X change in coordinate axis direction when carrying out constant speed movement, be expressed as X toward the displacement of X change in coordinate axis direction 1, Y 1, X 1And X 2Unit be millimeter, the unit of a and b is a mm/second, d 1, d 2When being second with the unit of c,
Described judging unit with in the ink-jet object by the satisfy condition object of (III) of (I) and the Xt that (II) obtains and Yt, be judged as candidate ink-jet target of next order or ink-jet target of next order,
Xt＝(X 1-2×X 2)/b+(d 1+d 2)+c (I)
Yt＝Y 1/a (II)
Xt≤Yt (III)。
5, ink discharge device as claimed in claim 1 is characterized in that,
After having the order of carrying out at least according to ink-jet described ink jet unit being relatively moved toward the ink-jet object, from the ink-jet control module of described ink jet unit to the control of ink-jet object ink-jet.
6, the ink discharge device described in claim 5 is characterized in that,
Described ink-jet control module has whether the described ink jet unit of supervision is the shower nozzle static determinacy status surveillance unit of static determinacy state and the nozzle position observing unit that can detect the position of described ink jet unit.
7, the ink discharge device described in claim 6 is characterized in that,
Have according to the supervision result of described shower nozzle static determinacy status surveillance unit and the observed result of described nozzle position observing unit, whether judge when described ink jet unit arrives the ink-jet enable position ink jettable ink-jet judging unit.
8, the ink discharge device described in claim 7 is characterized in that,
Has according to the judged result of described ink-jet judging unit and the observed result of described nozzle position observing unit the ink-jet interruption position administrative unit of management ink-jet interruption position.
9, the ink discharge device described in claim 8 is characterized in that,
Described ink-jet control module has the not ink-jet object extracting unit of extracting the ink-jet object that interrupts ink-jet.
10, the ink discharge device described in claim 9 is characterized in that,
The ink-jet object that ink jet unit is extracted described not ink-jet object extracting unit moves and ink-jet once more.
11, ink discharge device as claimed in claim 1 is characterized in that,
Described ink jet unit with the opposed state of described ink-jet object, tilt toward main scanning direction or sub scanning direction.
12, the ink discharge device described in claim 11 is characterized in that,
Described ink jet unit is to the ink-jet in one scan of a plurality of ink-jet objects.
13, a kind of ink discharge control method, ink discharge device has ink jet unit, it is characterized in that,
For to scattering a plurality of ink-jet object ink-jet in the media, described ink jet unit is arranged to and can be moved between a plurality of ink-jet objects, and can relatively move with respect to described medium at main scanning direction and sub scanning direction,
The last stage of described ink jet unit ink-jet comprise select at least follow-up in determining step as the processing of the ink-jet target of any next order of the 1st ink-jet target ink-jet of ink-jet object or candidate ink-jet target,
Described determining step is when relatively moving from described the 1st ink-jet target toward another ink-jet object, calculate the time that past main scanning direction of described ink jet unit and sub scanning direction move, whether judge the sub scanning direction traveling time smaller or equal to the main scanning direction traveling time, to this judged result of major general be used for next the order the ink-jet target or the selection of candidate ink-jet target.
14, the ink discharge control method described in claim 13 is characterized in that,
Described determining step is expressed as Yt at the main scanning direction traveling time with ink jet unit, when the sub scanning direction traveling time is expressed as Xt, with the ink-jet object of Xt smaller or equal to Yt, is judged as the candidate ink-jet target of next order, and
Also have from the candidate ink-jet target of described next order and can be defined as the ink-jet order deciding step of the ink-jet target of next order with the ink-jet object of shortest time from described the 1st ink-jet target arrival.
15, the ink discharge control method described in claim 13 is characterized in that,
Described determining step is expressed as Yt at the main scanning direction traveling time with ink jet unit, with subscan side
When traveling time is expressed as Xt, from being present in the ink-jet object that leaves the near position of the 1st ink-jet target
Calculate Yt and Xt successively, and whether judge Xt smaller or equal to Yt, and
To satisfy the ink-jet object of the condition of Xt≤Yt, be defined as the ink-jet target of next order.
16, as claim 14 or 15 described ink discharge control methods, it is characterized in that,
To be expressed as Y toward the displacement of Y change in coordinate axis direction 1, toward the constant speed movement velometer of Y change in coordinate axis direction be shown a, toward the acceleration of X change in coordinate axis direction, slowing down and stopping the needed time is expressed as d respectively 1, d 2The distance that moves toward the X change in coordinate axis direction during with c, acceleration and deceleration all is expressed as X 2, be shown b toward the velometer of X change in coordinate axis direction when carrying out constant speed movement, be expressed as X toward the displacement of X change in coordinate axis direction 1, Y 1, X 1And X 2Unit be millimeter, the unit of a and b is a mm/second, d 1, d 2When being second with the unit of c,
Described determining step with in the ink-jet object by the satisfy condition object of (III) of (I) and the Xt that (II) obtains and Yt, be judged as candidate ink-jet target of next order or ink-jet target of next order,
Xt＝(X 1-2×X 2)/b+(d 1+d 2)+c (I)
Yt＝Y 1/a (II)
Xt≤Yt (III)。
17, ink discharge control method as claimed in claim 13 is characterized in that,
After having the order of carrying out at least according to ink-jet described ink jet unit being relatively moved toward the ink-jet object, from the ink-jet controlled step of described ink jet unit to the control of ink-jet object ink-jet.
18, the ink discharge control method described in claim 17 is characterized in that,
Described ink-jet controlled step has whether the described ink jet unit of supervision is the shower nozzle static determinacy status surveillance step of static determinacy state and the nozzle position observation procedure that can detect the position of described ink jet unit.
19, the ink discharge control method described in claim 18 is characterized in that,
Have according to the supervision result of described shower nozzle static determinacy status surveillance step and the observed result of described nozzle position observation procedure, whether judge when described ink jet unit arrives the ink-jet enable position ink jettable ink-jet determining step.
20, the ink discharge control method described in claim 19 is characterized in that,
Has observed result, the ink-jet interruption position management process of management ink-jet interruption position according to the judged result and the described nozzle position observation procedure of described ink-jet determining step.
21, want the ink discharge control method described in 20 as right, it is characterized in that,
Described ink-jet controlled step has the not ink-jet object extraction step of extracting the ink-jet object that interrupts ink-jet.
22, the ink discharge control method described in claim 21 is characterized in that,
The ink-jet object that ink jet unit is extracted described not ink-jet object extraction step moves and ink-jet once more.
23, ink discharge control method as claimed in claim 13 is characterized in that,
Described ink jet unit with the opposed state of described ink-jet object, tilt toward main scanning direction or sub scanning direction.
24, the ink discharge control method described in claim 23 is characterized in that,
Described ink jet unit is to the ink-jet in one scan of a plurality of ink-jet objects.
CN200680029507A 2005-06-14 2006-06-13 Ink jet device and ink jet control method Expired - Fee Related CN100582821C (en)

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