CN101402282B - Ink jet printer and printing method thereof - Google Patents
Ink jet printer and printing method thereof Download PDFInfo
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- CN101402282B CN101402282B CN2008102243360A CN200810224336A CN101402282B CN 101402282 B CN101402282 B CN 101402282B CN 2008102243360 A CN2008102243360 A CN 2008102243360A CN 200810224336 A CN200810224336 A CN 200810224336A CN 101402282 B CN101402282 B CN 101402282B
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000007639 printing Methods 0.000 title claims abstract description 15
- 238000005507 spraying Methods 0.000 claims description 72
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 6
- 230000001186 cumulative effect Effects 0.000 abstract description 2
- 239000007921 spray Substances 0.000 description 15
- 238000005516 engineering process Methods 0.000 description 5
- 230000000630 rising effect Effects 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000007641 inkjet printing Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/21—Ink jet for multi-colour printing
- B41J2/2132—Print quality control characterised by dot disposition, e.g. for reducing white stripes or banding
Abstract
The invention discloses a printing method for an ink-jet printer to improve printing quality. The method comprises the following steps: according to the required time of jetting an ink drop to a medium and the moving speed of the medium, obtaining the time error between the time that the ink drop drops to the medium when the moving speed of the medium changes and the time that the ink drop drops to the medium when the moving speed of the medium is constant; according to the time error, adjusting the jet time of the ink drop; and jetting the ink drops according to the adjusted jet time. One embodiment of the invention also provides an ink-jet printer. In the embodiment of the invention, the method avoids the error when the ink drop drops to the medium when the moving speed of the medium changes by adjusting the jet time of the ink drop, and can eliminate cumulative error formed by jetting a plurality of the ink drops, and adjust the positions of the ink drops dropping to the medium, so as to improve the printing quality.
Description
Technical field
The present invention relates to the inkjet printing field, especially relate to a kind of ink-jet printer and Method of printing thereof.
Background technology
Ink jet imaging principle is: with printing ink with certain speed from fine nozzle ejection to medium, the interaction by printing ink and stock realizes the reproduction of image.An ink jet-print head is made of several nozzles usually, and an ink-jet printer then comprises several ink jet-print heads.At present, in the high speed ink jet printing device, adopt ink jet-print head is fixed, medium moves method to finish the printing of entire image usually.When adopting this method, the nozzle of ink jet-print head covers whole print span, and ink gun sprays once can form delegation's image, after having printed delegation, medium is moved to the print position of next line, ink gun is printed the next line image, so circulation is until the printing of finishing piece image.As shown in Figure 1, ink gun is ejected into ink droplet on the medium with certain speed by certain mode, and the encoder axle rotates, and drives medium and moves.Under this printing model, ink-jet control system need accurately calculate the moment that medium moves to the next line print position, otherwise will cause drop location and ideal position on the stock inconsistent, thereby quality is xeroxed in influence.
In the prior art, the distance that ink-jet control system adopts encoder to come calculation medium to move as survey tool is usually controlled the moment that ink gun sprays according to the moment of encoder pulse.As shown in Figure 1 in the device, encoder is installed on the high-precision axle usually, be that 2000rpm, axle girth are that the encoder of 160mm is an example with the rotating speed, encoder rotates a circle 2000 pulses of generation, and the movement velocity of supposing medium simultaneously is 0.4m/s, therefore be 1/ ((0.4/0.16) * 2000)=0.0002s, i.e. 200us the average period of a pulse of encoder generation.Therefore, if inkjet controller is sprayed on each encoder pulse edge, can reach the resolution ratio of 2000/ (160/25.4)=317.5dpi.
But, usually do not consider in the prior art that ink gun injection ink droplet and ink droplet drop on the time difference on the medium, but being equal to ink droplet, the moment that ink gun sprays ink droplet drops on moment on the medium, there is certain distance between ink gun and the medium, thereby causes ink droplet to drop on needing certain hour on the medium.In theory, the motion of medium can be in the uniform speed motion state, and at this moment, ink droplet still can accurately arrive the print position of corresponding row when arriving on the medium after a while; But in fact, medium translational speed (in millisecond) in a very little time period is to change always, therefore, the medium translational speed was different when the medium translational speed dropped on the medium with ink droplet when ink gun sprayed ink droplet, the position that ink droplet drops on the medium also is different with ideal position, thereby influences print quality.Describe in detail below:
The motion of medium is normally by driven by motor, and that rotating speed of motor normally is is periodically variable, as in rising trend in a period of time, a period of time is then on a declining curve in addition, therefore, the speed of service of medium can not be definitely at the uniform velocity, thereby causes the pulse width of encoder to be sinusoidal wave formula fluctuation in certain amplitude.In the prior art, ink-jet control system control ink gun sprays at each rising edge of a pulse or the trailing edge of encoder.
Lift an example, suppose to adopt equipment shown in Figure 1, the distance of ink gun and medium is 2mm, and the initial motion speed of ink droplet is decided to be 10m/s, and then to be ejected into the time that ink droplet drops on the medium from ink gun be 200us to first ink droplet; Ink-jet control system learns that by calculating it is delegation that each encoder pulse is represented the medium motion distance, as shown in Figure 2, suppose to send 9 encoder pulse signals in this example altogether, be respectively 200us, 201us, 202us, 203us, 204us, 205us, 206us, 207us, 208us; And default ink-jet control system control ink gun sprays at the rising edge of each encoder pulse.With the 1st ink droplet and the 2nd ink droplet is example, in the prior art, two ink dots spray is spaced apart 200us, in fact, when the 1st ink dot passes through the flight of 200us time and then drops on the medium, the movement velocity of medium has become the spacing that needs 201us could move 1 row, therefore the 2nd ink dot drops on position on the medium not accurately on print position, relatively accurate print position has moved forward a bit, drops on apart from the 1st ink droplet 200us place, and imperfect due in also, be 201us, so the spacing of the 1st ink droplet and the 2nd ink droplet can be littler than the ideal value, its amplitude is about (201-200)/201=0.5%.
In like manner, the spacing of the 2nd ink droplet and the 3rd ink droplet is also less than ideal value ... the spacing of the 8th ink droplet and the 9th ink droplet is also less than ideal value.So, the moment error of 9 ink droplets of the 1st ink droplet to the is the accumulated values by the moment error of per two ink droplets, as shown in Figure 2, the moment error of the 2nd row is 401-400=1us, the moment mistake of the 3rd row is 603-601=2us, the moment mistake of the 4th row is 806-803=3us, the moment mistake of the 5th row is 1010-1006=4us, the moment mistake of the 6th row is 1215-1210=5us, the moment mistake of the 7th row is 1421-1415=6us, and the moment mistake of eighth row is 1628-1621=7us, and the ink droplet of the 9th row is the error maximum constantly, reach 1836-1828=8us with the gap of ideal value, promptly reached about 4% of a row distance.
The inventor finds that also under the situation that distance increases, the fluctuation of medium translational speed is bigger of ink gun and medium, the moment error of accumulation can be higher, can't guarantee print quality.
Summary of the invention
The embodiment of the invention provides a kind of Method of printing of ink-jet printer, and in order to improve print quality, this method comprises:
According to ink droplet jet to medium required time and medium translational speed, when obtaining the medium translational speed and changing ink droplet fall moment on the medium with the medium translational speed when constant ink droplet fall the moment error in the moment on the medium;
Adjust the time for spraying of ink droplet according to described moment error;
Carry out ink droplet jet by adjusted time for spraying.
Preferable, ink droplet jet is determined according to the distance between speed, nozzle and the medium of the ink droplet jet of ink-jet printer to the medium required time.
Preferable,, obtain described moment error and comprise to medium required time and medium translational speed according to ink droplet jet:
Arrive medium required time and Average pulse period according to ink droplet jet, obtain the hysteresis cycle number that ink droplet drops on the time for spraying of the relative ink droplet of the moment on the medium, described Average pulse period is determined according to the girth and the encoder revolution umber of pulse of medium translational speed, encoder connecting axle;
According to the difference between the pulse period of the described hysteresis cycle number of being separated by, obtain described moment error.
Preferable, described hysteresis cycle number is to be not less than ink droplet to drop on the medium required time divided by the smallest positive integral value of Average pulse period.
Preferable, the time for spraying of adjusting ink droplet according to described moment error comprises:
Obtain adjusting the required offset of time for spraying of ink droplet according to described moment error;
Adjust the time for spraying of ink droplet according to described offset.
Preferable, the time for spraying of adjusting ink droplet according to described offset comprises:
According to default injection time-delay and described offset, obtain the time interval of pulse edge to the time for spraying of adjusted ink droplet;
Adjust the time for spraying of ink droplet according to the described time interval.
Preferable, described default injection time-delay is made as 1/4th of described Average pulse period.
Preferable, the time for spraying of described adjustment ink droplet is meant that the time for spraying with ink droplet prolongs the described time interval behind the encoder pulse edge.
The embodiment of the invention also provides a kind of ink-jet printer, and in order to improve print quality, this device comprises:
The error determining unit, be used for falling required time and medium translational speed on the medium from being injected into according to ink droplet, when obtaining the medium translational speed and changing ink droplet fall moment on the medium with the medium translational speed when constant ink droplet fall the moment error in the moment on the medium;
Adjustment unit is used for the time for spraying according to described moment error adjustment ink droplet;
Ink jet unit is used for carrying out ink droplet jet by adjusted time for spraying.
Preferable, described error determining unit further comprises:
Average pulse period is determined subelement, is used for determining Average pulse period according to the girth and the encoder revolution umber of pulse of medium translational speed, encoder connecting axle;
The hysteresis cycle number is determined subelement, is used for arriving medium required time and Average pulse period according to ink droplet jet, obtains the hysteresis cycle number that ink droplet drops on the time for spraying of the relative ink droplet of the moment on the medium;
Error is differentiated subelement, is used for obtaining described moment error according to the pulse period of the described hysteresis cycle number of being separated by.
Preferable, described adjustment unit further comprises:
The compensation value calculation subelement is used for obtaining adjusting according to described moment error the required offset of time for spraying of ink droplet;
Regulate subelement, be used for adjusting the time for spraying of ink droplet according to described offset.
In the embodiment of the invention, arrive medium required time and medium translational speed according to ink droplet jet, when obtaining the medium translational speed and changing ink droplet fall moment on the medium with the medium translational speed when constant ink droplet fall the moment error in the moment on the medium, adjust the time for spraying of ink droplet according to described moment error, carry out ink droplet jet by adjusted time for spraying, ink droplet falls that error appears in the position on the medium in the time of can avoiding the medium translational speed to change, make ink droplet drop on exactly on the target location of medium, eliminated of the influence of described moment error to print quality, and when spraying a plurality of ink droplet, can not form the accumulated error that ink droplet is fallen position on the medium yet, improve print quality greatly.
Description of drawings
Fig. 1 is the schematic diagram that ink-jet printer sprays in the background technology;
Fig. 2 is that the ink droplet sequence that ink-jet printer sprays in the background technology produces the accumulation schematic diagram of error constantly;
Fig. 3 is the Method of printing schematic flow sheet of ink-jet printer in the embodiment of the invention;
Fig. 4 is the schematic diagram of the accumulation moment error of the ink droplet sequence generation that the elimination ink-jet printer sprays in the embodiment of the invention;
Fig. 5 is the structural representation of ink-jet printer in the embodiment of the invention;
Fig. 6 is the structural representation of the error determining unit of ink-jet printer in the embodiment of the invention;
Fig. 7 is the structural representation of the adjustment unit of ink-jet printer in the embodiment of the invention.
The specific embodiment
Below in conjunction with Figure of description the embodiment of the invention is elaborated.
As shown in Figure 3, in the embodiment of the invention, a kind of Method of printing of ink-jet printer comprises:
Among the embodiment, when step 301 is implemented,, need the regular hour just can fall on the medium behind the ink droplet jet because of between the nozzle of ink-jet printer and medium certain distance being arranged.During enforcement, can there be several different methods to determine that ink droplet falls the time required on the medium, as utilizes the timer calendar scheduling; Preferable, can be according to the distance between ink ejection velocity, nozzle and the medium of ink-jet printer, determine ink droplet jet to the medium required time, and ink droplet jet equals distance between nozzle and the medium divided by the speed of ink gun ink droplet jet to the medium required time.Lift an example explanation: establish ink droplet and obtain certain jet velocity v when spraying, the distance between ink gun and medium is s, and then ink droplet arrives medium required time t=s/v.
Fall on the medium in the required time at ink droplet, the medium translational speed changes the variation that further shows as the pulse period, and pulse period and medium translational speed are inversely proportional to, and hereinafter judge moment error and accumulate time difference for convenient, replace the variation of medium translational speed with the variation of pulse period.When implementing, each pulse period is carried out timing, and record duration.
In one embodiment, medium in when motion if through a complete pulse period, then medium just in time runs on the print position of delegation, therefore, ink droplet drops on position on the medium, and only to drop on pulse period of time for spraying of pulse period in the moment on the medium and ink droplet relevant with ink droplet, and irrelevant with the pulse period of middle process.Therefore, the pulse period that described moment error also only needs to drop on the time for spraying of pulse period in the moment on the medium and ink droplet according to ink droplet can obtain, and the moment error of an ink droplet is the difference of the pulse period of the ink droplet time for spraying that drops on pulse period in the moment on the medium and ink droplet.
In the enforcement, there is several different methods can determine the moment error of ink droplet, for example adopts the timer timing, more excellent, can judge the differences of two pulse periods according to the hysteresis cycle number that ink droplet drops on the time for spraying of the relative ink droplet of the moment on the medium.Described hysteresis pulse period number has multiple determination methods, for example, carry out artificial counting at ink droplet jet paired pulses in the medium required time, preferable, can obtain to medium required time and Average pulse period according to ink droplet jet, the Average pulse period that promptly comprises what encoders in ink droplet drops on the medium required time, the pulse period number of hysteresis are to be not less than ink droplet to drop on the medium required time divided by the smallest positive integral value of Average pulse period.Illustrate:
If medium speed of service v, the girth of encoder connecting axle are 1, then encoder revolution required time is 1/v, because encoder revolution umber of pulse is m, then the Average pulse period T of encoder is (1/v)/m again, i.e. T=1/ (v * m);
Then fall on the medium in the required time t at ink droplet, passed through the pulse period that t/T rounds numerical value at least, promptly the pulse period of Zhi Houing is counted n.
Among the embodiment, step 302 is when implementing, the time for spraying of adjusting ink droplet according to described moment error has numerous embodiments, for example, can directly the time for spraying of ink droplet be shifted to an earlier date or hysteresis according to moment error, also can obtain adjusting the required offset of time for spraying of ink droplet according to described moment error, and adjust the time for spraying of ink droplet according to described offset.
Be that example describes now with the required offset of time for spraying that obtains adjusting ink droplet according to described moment error.
During enforcement, before first ink droplet arrives medium, because of unpredictable ink droplet drops on the moment error that forms on the medium, ink-jet control system is not adjusted constantly to ink-jet, and therefore the offset of the ink droplet that sprays in first ink droplet arrives the medium required time is 0.According to each pulse period of the encoder that writes down, obtain an ink droplet moment corresponding error, because of a plurality of ink droplets being arranged in a sequence, and the moment error of ink droplet can produce cumulative effect, therefore on the adjustment basis of previous ink droplet the time for spraying of this ink droplet adjusted.Illustrate:
If offset is Di, each pulse period of encoder is TEi, for any one emission sequence I (i〉n+1), D1 to D
N+1Be 0; If the moment error of an ink droplet is Ti, then Ti=TEi-TE
I-n The offset Di=Ti+D of this ink droplet then
I-1
Because the medium translational speed normally is sinusoidal variations, ink droplet drop on position on the medium will be corresponding appearance lag behind or two kinds of situations in advance, corresponding, may be that time for spraying is shifted to an earlier date to the adjustment of the time for spraying of ink droplet, also may be time for spraying is lagged behind.Be the convenient control that realizes the time for spraying of ink droplet, in one embodiment, provide a default injection time-delay Tdmax, the time for spraying of ink droplet is prolonged behind pulse edge.
The medium translational speed can not suddenlyd change, so offset is less usually, is generally less than 1/10th of Average pulse period, therefore, usually Tdmax is made as 1/4th of Average pulse period.At this moment, the time for spraying relative pulse of ink droplet is along the hysteresis certain hour, and before time for spraying can not occurring and advanceing to pulse edge, is difficult to control the situation of time for spraying.
According to Tdmax and offset, adjust the time for spraying of ink droplet, pulse edge to the time interval that ink gun sprays be Tdmax and offset with, be designated as Fi=Tdmax+Di.
Among the embodiment, step 303 picks up counting from pulse edge when implementing, and begins to spray ink droplet through behind the duration of Fi, and the Fi time that promptly lags behind sprays.
Now lifting an example describes:
Contrast with background technology for convenient, adopt in this example with example shown in Figure 2 in identical condition, Jimo drips to that to reach the medium required time be 200us, the Average pulse period of encoder is 200us, drawing the moment that ink droplet drops on the medium according to above-mentioned condition has lagged behind 1 cycle constantly with respect to ink droplet jet, setting Tdmax is 50us, will prolong behind the last or trailing edge of time for spraying by encoder pulse, as shown in Figure 4.Do not arrive medium owing to have ink droplet when the 1st ink droplet and the 2nd ink droplet jet, and then also can't learn the moment error of its formation, therefore the 1st ink droplet and the 2nd ink droplet do not adjust, just time for spraying is delayed Tdmax, the 1st ink droplet and the 2nd ink droplet spray when 50us and 250us respectively.During the 3rd ink droplet jet, can draw T3=TE3-TE2=1us according to TE3=202 and TE2=201, because the 1st ink droplet and the 2nd ink droplet all do not adjust, so, the time for spraying of the 3rd ink droplet is adjusted into behind encoder rising edge or trailing edge time-delay Tdmax and T3's and value, i.e. 51us.
In like manner can get T4=1us because the 3rd ink droplet adjusted error 1us constantly, therefore, the 4th ink droplet adjusted 1us again on the adjustment basis of the 3rd ink droplet, promptly the time for spraying of the 4th ink droplet is adjusted into 52us behind encoder rising edge or the trailing edge.The time for spraying that in like manner can obtain 9 ink droplets of the 5th ink droplet to the among Fig. 4 is adjusted into that encoder rises or trailing edge hysteresis 53us, 54us, 55us, 57us, 57us.Can draw by calculating, the 2nd row keeps consistent with ideal value to the spacing of the 9th row among Fig. 4, and error accumulation is eliminated.
Based on same inventive concept, the embodiment of the invention also provides a kind of ink-jet printer, and as shown in Figure 5, this device comprises:
Error determining unit 501, be used for falling required time and medium translational speed on the medium from being injected into according to ink droplet, when obtaining the medium translational speed and changing ink droplet fall moment on the medium with the medium translational speed when constant ink droplet fall the moment error in the moment on the medium;
Ink jet unit 503 is used for carrying out ink droplet jet by adjusted time for spraying.
Among the embodiment, as shown in Figure 6, error determining unit 501 shown in Figure 5 can also comprise:
Average pulse period is determined subelement 601, is used for determining Average pulse period according to the girth and the encoder revolution umber of pulse of medium translational speed, encoder connecting axle;
The hysteresis cycle number is determined subelement 602, is used for arriving medium required time and Average pulse period according to ink droplet jet, obtains the hysteresis cycle number that ink droplet drops on the time for spraying of the relative ink droplet of the moment on the medium;
Error is differentiated subelement 603, is used for obtaining described moment error according to the pulse period of the described hysteresis cycle number of being separated by.
Among the embodiment, as shown in Figure 7, adjustment unit 502 shown in Figure 5 further comprises:
Compensation value calculation subelement 701 obtains adjusting the required offset of time for spraying of ink droplet according to described moment error;
Regulate subelement 702, adjust the time for spraying of ink droplet according to described offset.
In the embodiment of the invention, arrive medium required time and medium translational speed according to ink droplet jet, when obtaining the medium translational speed and changing ink droplet fall moment on the medium with the medium translational speed when constant ink droplet fall the moment error in the moment on the medium, adjust the time for spraying of ink droplet according to described moment error, carry out ink droplet jet by adjusted time for spraying, ink droplet falls that error appears in the position on the medium in the time of can avoiding the medium translational speed to change, make ink droplet drop on exactly on the target location of medium, eliminated of the influence of described moment error to print quality, and when spraying a plurality of ink droplet, can not form the accumulated error that ink droplet is fallen position on the medium yet, improve print quality greatly.
In the enforcement, default injection time-delay can also be set, will prolong behind the time for spraying, thereby accurately detect the arrival of pulse edge, may need to spray, realize easily being converted into behind pulse edge in the situation of spraying before the pulse edge.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (11)
1. the Method of printing of an ink-jet printer is characterized in that, this method comprises:
According to ink droplet jet to medium required time and medium translational speed, when obtaining the medium translational speed and changing ink droplet fall moment on the medium with the medium translational speed when constant ink droplet fall the moment error in the moment on the medium;
Adjust the time for spraying of ink droplet according to described moment error;
Carry out ink droplet jet by adjusted time for spraying.
2. the method for claim 1 is characterized in that, described ink droplet jet is determined according to the distance between ink ejection velocity, nozzle and the medium of ink-jet printer to the medium required time.
3. the method for claim 1 is characterized in that, described according to ink droplet jet to medium required time and medium translational speed, obtain described moment error and comprise:
Arrive medium required time and Average pulse period according to ink droplet jet, obtain the hysteresis cycle number that ink droplet drops on the time for spraying of the relative ink droplet of the moment on the medium, described Average pulse period is determined according to the girth and the encoder revolution umber of pulse of medium translational speed, encoder connecting axle;
According to the difference between the pulse period of the described hysteresis cycle number of being separated by, obtain described moment error.
4. method as claimed in claim 3 is characterized in that, described hysteresis cycle number is to be not less than ink droplet to drop on the medium required time divided by the smallest positive integral value of Average pulse period.
5. the method for claim 1 is characterized in that, the described time for spraying of adjusting ink droplet according to described moment error comprises:
Obtain adjusting the required offset of time for spraying of ink droplet according to described moment error;
Adjust the time for spraying of ink droplet according to described offset.
6. method as claimed in claim 5 is characterized in that, described time for spraying according to described offset adjustment ink droplet comprises:
According to default injection time-delay and described offset, obtain the time interval of pulse edge to the time for spraying of adjusted ink droplet;
Adjust the time for spraying of ink droplet according to the described time interval.
7. method as claimed in claim 6 is characterized in that, described default injection time-delay is made as 1/4th of described Average pulse period.
8. method as claimed in claim 6 is characterized in that, the time for spraying of described adjustment ink droplet is meant that the time for spraying with ink droplet prolongs the described time interval behind pulse edge.
9. an ink-jet printer is characterized in that, this device comprises:
The error determining unit, be used for falling required time and medium translational speed on the medium from being injected into according to ink droplet, when obtaining the medium translational speed and changing ink droplet fall moment on the medium with the medium translational speed when constant ink droplet fall the moment error in the moment on the medium;
Adjustment unit is used for the time for spraying according to described moment error adjustment ink droplet;
Ink jet unit is used for carrying out ink droplet jet by adjusted time for spraying.
10. ink-jet printer as claimed in claim 9 is characterized in that, described error determining unit further comprises:
Average pulse period is determined subelement, is used for determining Average pulse period according to the girth and the encoder revolution umber of pulse of medium translational speed, encoder connecting axle;
The hysteresis cycle number is determined subelement, is used for arriving medium required time and Average pulse period according to ink droplet jet, obtains the hysteresis cycle number that ink droplet drops on the time for spraying of the relative ink droplet of the moment on the medium;
Error is differentiated subelement, is used for obtaining described moment error according to the pulse period of the described hysteresis cycle number of being separated by.
11. ink-jet printer as claimed in claim 9 is characterized in that, described adjustment unit further comprises:
The compensation value calculation subelement is used for obtaining adjusting according to described moment error the required offset of time for spraying of ink droplet;
Regulate subelement, be used for adjusting the time for spraying of ink droplet according to described offset.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102243360A CN101402282B (en) | 2008-10-17 | 2008-10-17 | Ink jet printer and printing method thereof |
| PCT/CN2009/001156 WO2010043118A1 (en) | 2008-10-17 | 2009-10-19 | Ink-jet printer and printing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102243360A CN101402282B (en) | 2008-10-17 | 2008-10-17 | Ink jet printer and printing method thereof |
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| CN101402282A CN101402282A (en) | 2009-04-08 |
| CN101402282B true CN101402282B (en) | 2010-12-01 |
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| WO (1) | WO2010043118A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101402282B (en) * | 2008-10-17 | 2010-12-01 | 北京大学 | Ink jet printer and printing method thereof |
| CN109703197B (en) * | 2018-03-16 | 2020-07-24 | 广东聚华印刷显示技术有限公司 | Method and device for measuring offset compensation amount of ink drop in ink jet printing and measuring substrate |
| CN109733071B (en) * | 2019-01-31 | 2020-11-13 | 南京协辰电子科技有限公司 | Ink jet error acquisition and ink jet correction method and device and ink jet printing device |
| CN112248645B (en) * | 2020-09-28 | 2022-02-18 | 深圳圣德京粤科技有限公司 | Longitudinal stitching method and device for nozzle, printing equipment and storage medium |
| CN115366539B (en) * | 2021-09-23 | 2024-01-23 | 广东聚华印刷显示技术有限公司 | Ink jet printing compensation method and ink jet printing control method |
| CN115157865A (en) * | 2022-06-10 | 2022-10-11 | 深圳市印擎科技有限公司 | Printing control method, printing control device, printing system and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5745069A (en) * | 1980-08-30 | 1982-03-13 | Ricoh Co Ltd | Ink jet recorder |
| JPS63254053A (en) * | 1987-04-11 | 1988-10-20 | Ricoh Co Ltd | Ink jet recording apparatus |
| JPH09254366A (en) * | 1996-03-19 | 1997-09-30 | Toray Ind Inc | Printing apparatus and production of printed product |
| JP2004034650A (en) * | 2002-07-08 | 2004-02-05 | Sharp Corp | Inkjet recorder |
| CN101402282B (en) * | 2008-10-17 | 2010-12-01 | 北京大学 | Ink jet printer and printing method thereof |
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|---|---|
| CN101402282A (en) | 2009-04-08 |
| WO2010043118A1 (en) | 2010-04-22 |
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