CN100577431C - Method for automatically correcting the nonhomogeneity of the ink jet head bearing speed and system thereof - Google Patents
Method for automatically correcting the nonhomogeneity of the ink jet head bearing speed and system thereof Download PDFInfo
- Publication number
- CN100577431C CN100577431C CN200610126816A CN200610126816A CN100577431C CN 100577431 C CN100577431 C CN 100577431C CN 200610126816 A CN200610126816 A CN 200610126816A CN 200610126816 A CN200610126816 A CN 200610126816A CN 100577431 C CN100577431 C CN 100577431C
- Authority
- CN
- China
- Prior art keywords
- ink
- test pattern
- comparisons
- ink gun
- control signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Ink Jet (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Abstract
The present invention discloses the system and method an ink jet printer, which can automatically correct the non-uniform speed of an ink gun bearing. The present invention includes a test pattern generator, a printing device, an image capturing device, a disposing device and a generator of control signal of the ink gun bearing. The test pattern generator generates at least one test pattern; the printing device is used to print at least one test pattern to a record medium; the image capturing device is used to capture the image of the test pattern; the disposing device reads the image of the test pattern and analyses a comparison list which is generated by the image; the generator of control signal of the ink gun bearing generates ink jet control signal of the ink gun bearing, wherein the generator of control signal of the ink gun bearing adjusts the a time sequence of the ink jet control signal of the ink gun bearing according to the comparison list.
Description
Technical field
The present invention relates to a kind of technology of inkjet printing, refer to a kind of uneven ink-jet print system of automatically calibrating ink gun bearing speed and method especially.
Background technology
For inkjet technology, the quality of printout (Print quality), and the speed of printout (throughput) often contradict each other, and need meet each other half way (tradeoff).For instance, desire to reach the printing of photograph quality, need do the printing (multi-pass printing) of multiple-pass, that is (carriage scan direction) moves back and forth repeatedly back and forth in the ink gun scanning direction to need ink gun, go out complete image output with ink-jet progressively.
Desktop photo printer with Hewlett-Packard (Hewlett-Packard) model 6578 is an example, prints an A4 size photograph output, needs ink gun to move back and forth approximately and prints stroke about 400 times.Wherein, stroke all needs CD-ROM drive motor to drive the ink gun bearing (carriage) of printer each time, passes through acceleration, constant speed, reaches the process of slowing down and stopping.Therefore, for the present stage inkjet technology, printout speed is still a bottleneck factor.
In addition, in the prior art, during inkjet printing, the ink-jet action needs to carry out when ink gun enters the constant speed interval.Muzzle velocity because of the horizontal direction of considering ink droplet, if carry out the ink-jet action according to fixed time sequence (timing), and ink gun is seated against the acceleration and deceleration zone promptly to begin to print, and then can cause and print image distortion (distortion), and produce print quality defective or mistake.
United States Patent (USP) the 5th, 997, the asymmetric acceleration region of No. 130 exposure is under the prerequisite that does not influence print quality, reduces print job district (working space).Fig. 1 is the schematic diagram of ink gun bearing (carriage) speed of this patent.The technology of this patent does not have actual the correction, but the space that originally is reserved as acceleration region and deceleration zone of one side between print zone is reduced.When printing high-quality output mode, be restricted to unidirectional printing, and the printing stroke of ink gun is by there being a side of reserving accelerating space to begin to carry out, and in print area, maintains constant speed.In case through print area, then can significantly slow down, ink gun is stopped.And because of not needing bi-directional printing, backhaul to need not to consider acceleration region and deceleration regional issue.When draft mode is printed, owing to the ink dot amount minimizing of required ink-jet is many, and reduce for the requirement of quality, therefore can two-wayly all can before arriving the constant speed zone, ink gun bearing (carriage) begin printing.Though it can impact print quality, still maintain within the requirement to draft mode.
United States Patent (USP) the 6th, 361, the velocity correction method of the ink gun bearing (carriage) that discloses for No. 137 is to use speed and the inkjet printing sequential of a cover complicated hardware circuit with decision ink gun bearing (carriage), wherein, the inkjet printing sequential is ink gun bearing translational speed and the ink gun function to the distance of paper.This patent is printed test pattern and read, analyze the result of printed test pattern not.This patent is estimated module according to the ink gun shift position signal (encodersignal) that receives by an ink droplet flight time, the instant analysis spot speed, and in estimating between this lane place ink droplet estimate the flight time, with the sequential of decision ink-jet control signal.Between two position signallings (encoder signal), do interpolation with sequential (clock) signal that system produces, on time shaft, estimate speed, estimating the ink droplet flight time, and then decision ink-jet sequential.Yet this patent need have complicated hardware, can determine the speed and the inkjet printing sequential of ink gun bearing (carriage) immediately.
United States Patent (USP) the 5th, 448 has disclosed one for No. 269 and has proofreaied and correct the method that ink droplet outlet initial velocity causes the ink droplet landing error.This patent is for proofreading and correct because of hold the ink droplet landing error that paper roller has curvature to cause on the paper direction of advance.Wherein when the bi-directional printing pattern, carry out the correction of muzzle velocity.This inventive method is first printed test pattern, and this test pattern is vertical lines.Re-use an optical sensor (opticalsensor) and read this test pattern.At last, analytical error and do the correction of outlet speed.The correction of muzzle velocity is to add extra delay (delay) for the part spray orifice on the ink-jet sequential.It mainly is the error that curvature caused that paper roller is held in compensation, does not carry out any correction at the inhomogeneous error that causes of ink gun bearing speed.Therefore, known ink-jet print system still exists many shortcomings to demand urgently improving.
Summary of the invention
The object of the invention is to provide a kind of automatically calibrating ink gun bearing speed uneven method and system, and the inhomogeneous error that produces of automatically calibrating ink gun bearing speed is to improve print quality.
Another order of the present invention provides the uneven method and system of a kind of automatically calibrating ink gun bearing speed, to reduce the space in the acceleration region between print zone and the zone of slowing down, to increase the scope between print zone.
An order more of the present invention provides the uneven method and system of a kind of automatically calibrating ink gun bearing speed, can set up the table of comparisons by off-line, need use the problem of complicated hardware circuit to avoid known technology.
Based on above-mentioned and other purposes, the present invention proposes the uneven ink-jet print system of a kind of automatically calibrating ink gun bearing speed, and it comprises a test pattern generation device, a printing equipment, an image capture unit, a treating apparatus, reaches an ink gun bearing control signal generation device.This test pattern generation device produces at least one test pattern; This printing equipment is coupled to this test pattern generation device, in order to printing on a recording medium by at least one test pattern; This image capture unit is in order to the image of this test pattern of capturing this recording medium; This treating apparatus is coupled to this image capture unit, reading the image of this test pattern, and analyzes this image and produces comparison list; This ink gun bearing control signal generation device is in order to produce the ink-jet control signal of this ink gun bearing; Wherein, ink gun bearing control signal generation device is a sequential of adjusting the ink-jet control signal of this ink gun bearing according to this table of comparisons.
The present invention proposes a kind of uneven method of automatically calibrating ink gun bearing speed, and it comprises: (A) receive an automatic alignment requirements; (B), under a specific printing model, print at least one test pattern on a recording medium according to this automatic alignment requirements; (C) capture the image of this test pattern of this recording medium, and analyze this image and produce comparison list; (D) adjust the sequential of the ink-jet control signal of this ink gun bearing according to this table of comparisons, and export adjusted ink-jet control signal.
The present invention proposes the uneven ink-jet print system of a kind of automatically calibrating ink gun bearing speed, and it comprises a test pattern generation device, a printing equipment, an image capture unit, a treating apparatus, an ink gun bearing control signal generation device, reaches the comparison list device.This test pattern generation device system produces at least one test pattern; This printing equipment is coupled to this test pattern generation device, in order to printing on a recording medium by at least one test pattern; This image capture unit is in order to the image of this test pattern of capturing this recording medium; This treating apparatus is coupled to this image capture unit, reading the image of this test pattern, and analyzes this image and produces comparison list; This ink gun bearing control signal generation device receives an ink gun shift position signal, and produces the ink-jet control signal of this ink gun bearing according to this ink gun shift position signal; This table of comparisons device is connected to this treating apparatus and this ink gun bearing control signal generation device, this table of comparisons device receives the table of comparisons that this treating apparatus produces, this table of comparisons device and according to this table of comparisons, and adjust the sequential of the ink-jet control signal of this ink gun bearing, produce an adjusted ink-jet control signal.
The present invention is by printing, read and the analytical test pattern obtaining the table of comparisons to proofread and correct ink gun speed inhomogeneous, not only can proofread and correct the ink droplet landing error that produces because of the acceleration and deceleration zone, also therefore recoverable can obtain best print quality and optimized printout speed because of the uneven phenomenon of controlling or mechanical factor produced of movement velocity.In addition, the present invention can set up the table of comparisons by off-line, therefore, the technology of the present invention need not instant a large amount of computing, or complicated hardware circuit, so the technology of the present invention has the advantage of simple and cost savings, can avoid known technology need use the problem of complicated hardware circuit.
Description of drawings
Fig. 1 is the schematic diagram of known ink gun bearing speed.
Fig. 2 is the block diagram of the uneven ink-jet print system of automatically calibrating ink gun bearing speed of the present invention.
Fig. 3 is the block diagram of uneven another embodiment of ink-jet print system of automatically calibrating ink gun bearing speed of the present invention.
Fig. 4 is the flow chart of the uneven inkjet printing methods of automatically calibrating ink gun bearing speed of the present invention.
Fig. 5 A is the schematic diagram of ink gun speed of the present invention.
Fig. 5 B is the schematic diagram of the optical density (optical density) of test pattern image of the present invention.Fig. 5 C is the schematic diagram of the optical density table of test pattern image of the present invention.
Fig. 5 D is the schematic diagram of the table of comparisons of the present invention.
Fig. 6 adjusts the schematic diagram of the sequential of ink-jet control signal for the present invention.
The specific embodiment
The present invention utilizes an image capture sensor, read the test pattern (test pattern) of printing and analyze, and according to this test pattern generation comparison list (look-up table), make ink gun be able in the ink gun bearing when accelerating region or deceleration area print, the landing error of the ink-jet ink-droplet that produces because of speed from dynamic(al) correction.The also uneven phenomenon of ink gun bearing translational speed that causes because of various factors of recoverable.
Fig. 2 is the block diagram of the uneven ink-jet print system of automatically calibrating ink gun bearing speed of the present invention, and described system is used in the multifunctional paper feeding machine of an inkjet printing.This ink-jet print system comprises a test pattern generation device 210, a printing equipment 220, an image capture unit 230, a treating apparatus 240, reaches an ink gun bearing control signal generation device 250.
This test pattern generation device 210 produces at least one test pattern.This test pattern can be multi-drop line and forms.This test pattern also can be the polychrome piece and forms.
This printing equipment 220 is coupled to this test pattern generation device 210, in order to printing on a recording medium 280 by at least one test pattern 270.This recording medium 280 is a kind of nontransparent recording medium or a kind of transparent recording medium.This nontransparent recording medium is preferably paper, photo paper.This transparent recording medium is preferably transparency.
This image capture unit 230 is in order to the image of this test pattern 270 of capturing this recording medium 280.This image capture unit 230 is optical sensor (optical sensor).This optical sensor is preferably charge-coupled image sensor (charge-coupled Device, CCD) sensor of kenel, contact-type image sensing device (Contact Image Sensor, CIS) sensor of kenel.
This treating apparatus 240 is coupled to this image capture unit 230, reading the image of this test pattern 270, and analyzes this image and produces comparison list 290.When this test pattern 270 was formed for multi-drop line, this treating apparatus 240 was analyzed the degree of registration and the offset error of this multi-drop line image, and produces this table of comparisons 290.When this test pattern 270 is a plurality of color lumps when forming, this treating apparatus 240 is analyzed the aberration degrees of offset (hue shift) of these a plurality of color lump images, and produces this table of comparisons 290.
This ink gun bearing control signal generation device 250 receives an ink gun shift position signal (encoder signal), and produces the ink-jet control signal that drives an ink gun bearing according to this ink gun shift position signal.
This ink gun bearing control signal generation device 250 is coupled to this treating apparatus 240, and adjust the sequential of the ink-jet control signal of this ink gun bearing according to this table of comparisons 290, to produce an adjusted ink-jet control signal (adjusted firing control signal), sequential with the ink-jet control signal by adjusting this ink gun bearing, proofread and correct the phenomenon because of inhomogeneous, the variable speed of ink gun bearing speed, the output quality of prining that is caused is bad.
Fig. 3 is the block diagram of uneven another embodiment of ink-jet print system of automatically calibrating ink gun bearing speed of the present invention.It is in last embodiment different comparison list device 260 is set in newly.This table of comparisons device 260 mainly is to simplify this ink gun bearing control signal generation device 250.In this embodiment, this ink gun bearing control signal generation device 250 receives an ink gun shift position signal (encoder signal), and produces the ink-jet control signal of this ink gun bearing according to this ink gun shift position signal.
This table of comparisons device 260 is connected to this treating apparatus 240 and this ink gun bearing control signal generation device 250.This table of comparisons device 260 receives the table of comparisons 290 that this treating apparatus 240 is produced.This table of comparisons device 260 is according to this table of comparisons 290, and adjusts the sequential of the ink-jet control signal of this ink gun bearing, produces an adjusted ink-jet control signal (adjusted firing control signal).
Fig. 4 is the flow chart of the uneven inkjet printing methods of automatically calibrating ink gun bearing speed of the present invention, and described system is used in the multifunctional paper feeding machine of an inkjet printing.At first, in step S410, receive an automatic alignment requirements.This multifunctional paper feeding machine can be provided with an automatic correcting button, promptly produces this automatic alignment requirements after a user presses this automatic correcting button.This automatic alignment requirements also can be produced automatically by this multifunctional paper feeding machine, and for example: when to this multifunctional paper feeding machine power supply, this multifunctional paper feeding machine promptly produces this automatic alignment requirements automatically.
In step S420,, printing at least one test pattern 270 under the specific printing model on a recording medium 280 according to this automatic alignment requirements.This test pattern 270 can be multi-drop line and forms.This test pattern 270 also can be the polychrome piece and forms.This recording medium 280 is a kind of nontransparent recording medium or a kind of transparent recording medium.This nontransparent recording medium is preferably paper, photo paper.This transparent recording medium is preferably transparency.
In step S430, capture the image of this test pattern 270 of this recording medium 280, and analyze this image and produce comparison list 290.When this test pattern 270 was formed for multi-drop line, this treating apparatus 240 was analyzed the degree of registration and the offset error of this multi-drop line image, and produces this table of comparisons 290.When this test pattern 270 is a plurality of color lumps when forming, this treating apparatus 240 is analyzed the aberration degrees of offset (hue shift) of these a plurality of color lump images, and produces this table of comparisons 290.
Under this specific printing model, this printing model comprises factors such as printing resolution, ink gun translational speed curve, end print speed, and the result of printing can reflect ink gun bearing variable speed or the uneven phenomenon of speed.For example: cause the lines spacing of printing unequal at the acceleration region and the zone of slowing down, can't align.Or cause the color lump of printing inhomogeneous, have aberration (hue shift).These are dispersed in the printing image on the whole printer page page width size, can read via this image capture unit 230, and be analyzed by this treating apparatus 240.This treating apparatus 240 is analyzed according to the optical density on this pick-up image unit are (optical density, O.D. are the optical strength on the unit are).Analysis project comprised do not line up, unequal spacing or color lump be inhomogeneous.Via to photodensitometry, this treating apparatus 240 produces comparison list 290.This table of comparisons 290 is the function of locational space.When reality is printed,, adjust the ink-jet control signal sequential of being sent according to the ink gun position.This adjustment may be for shifting to an earlier date or the output of delayed control signal.That is the content of this table of comparisons is the required time quantum that shifts to an earlier date or postpone ink-jet control signal on each position.With prior art difference be that the table of comparisons that the present invention was used for proofreading and correct is based on the function on the locational space, that is is according to doing correction on each horizontal level in the printing stroke.
Fig. 5 A is the schematic diagram of ink gun speed of the present invention, and wherein transverse axis is the ink gun position, and the longitudinal axis is an ink gun speed.When accelerating region 51, this ink gun speed is incremented to a maximal rate V gradually by 0
Max, when constant speed district 52, this ink gun speed maintains speed V
Const
The image of this test pattern 270 of these image capture unit 230 these recording mediums 280 of acquisition, this treating apparatus 240 produces an optical density table according to the characteristic of these test pattern 270 images.Fig. 5 B is the schematic diagram of the optical density of test pattern 270 images of the present invention, and wherein transverse axis is the ink gun position, and the longitudinal axis is an optical density.When accelerating region 51, this optical density is incremented to a maximum OD gradually
Max, when constant speed district 52, this optical density is convergence one fixed value OD gradually
Const
Fig. 5 C is the schematic diagram of the optical density table of test pattern image of the present invention.If the width of this recording medium is 8 inches, and per inch is printed 600 points, and (600 dots per inch 600dpi), when then this recording medium 280 is printed a line, then have 4800 print points.That is in this optical density table, its position field is 0～4799.The optical density field then writes down the optical density of each some position (dot position) respectively.
This treating apparatus 240 produces comparison list 290 according to this optical density table.Fig. 5 D is the schematic diagram of the table of comparisons of the present invention.This table of comparisons 290 is according to the ink gun position, to produce a retardation values (delay).That is the retardation values of this table of comparisons 290 is the function of a position, delay=func (position).Shown in Fig. 5 D, the retardation values when retardation values then writes down this ink gun respectively and is seated against the every bit position.For example, this ink gun is seated against at a little 2 o'clock, and its retardation values is 193 chronomeres.In the present invention, chronomere is microsecond (μ s).
In step S440, adjust the sequential of the ink-jet control signal of this ink gun bearing according to this table of comparisons 290, and export adjusted ink-jet control signal.Fig. 6 adjusts the schematic diagram of the sequential of ink-jet control signal for the present invention, wherein, when ink gun is positioned at a some position 0, the ink-jet control signal of this ink gun bearing should be exported when time A, yet adopt technology of the present invention, the ink-jet control signal of this ink gun bearing according to this table of comparisons in time A ' time output.That is the ink-jet control signal has been delayed just exporting after 200 microseconds.The sequential of the ink-jet control signal by adjusting this ink gun bearing makes that the ink dot that is printed on accelerating region and deceleration area is more even, to reach the purpose that reduces accelerating region and deceleration area space.
The generation method of the above-mentioned table of comparisons is as follows: optical density can be directly measured on each position by image capture unit, and it can represent the colouring intensity of this position.With embodiment, test pattern is a uniform color lump, but because of printing the uneven influence of bearing speed, the intensity that causes actual amount to get is also inhomogeneous, therefore can set up comparison list.
The value of the table of comparisons is the retardation values of ink-jet control signal and the relation of position.Its generation should be passed through the process of recurrence (iteration), that is at different ink gun ink characteristics, via the experiment of recurrence, finds out the value of the table of comparisons.In other words, similar with the adjustment of the known inkjet printing color conversion table of comparisons, set table of comparisons initial value earlier, printed test pattern, the acquisition optical density produces the table of comparisons of a renewal, again the table of comparisons that upgrades of recurrence (finding out trend according to the result of recurrence last time), progressively convergence obtains the table of comparisons that this ink gun is suitable for, and makes the ink gun bearing still can print the result of even color lump in accelerating region.
The generation of the table of comparisons is to obtain via the computing for the treatment of apparatus 240.Embodiment as described above, the test pattern that image capture unit 230 fechtables are printed is at each locational OD value, on each position, these values compare via the theoretical value (test pattern is with this theoretical value design) for the treatment of apparatus and this position, calculate the required retardation values of ink jet signal, to set up the table of comparisons.For instance, on ink gun bearing acceleration region, the position adjacent sigtnal interval can progressively reduce (because speed is more and more faster), therefore the printing of test color lumps can obtain uneven result, and color progressively deepens (can be got by the image capture unit amount) by shallow, treating apparatus can be to these positions according to the result of image capture, the ink-jet control signal retardation values that gives progressively to reduce.These values form comparison list, supply with table of comparisons device 260 and produce real print control signal.
Because the present invention utilizes the table of comparisons of setting up in advance, proofreaies and correct the ink-jet control signal when printing accelerating region and deceleration area.And the foundation of the table of comparisons can off-line operation, via printed test pattern, and analyzes the data of being read back by this image capture unit and finishes.Therefore, the technology of the present invention need not instant a large amount of computing, or complicated hardware circuit.On framework, have simple and cost-effective advantage.
Simultaneously, general appendix is in the optics sensing element (optical sensor) of ink gun bearing, optical density that can the scanning and printing pattern in case this treating apparatus 240 analyze, so need not to increase new element.And for the multifunctional paper feeding machine of the sensor of sensor with charge-coupled device (CCD) kenel or contact-type image sensing device (CIS) kenel, then can use higher horizontal sweep resolution, obtain more complete image capture data, set up more accurately and proofread and correct the table of comparisons.
So, by the technology of the present invention, in the stroke of inkjet printing (swath), acceleration region and deceleration zone can obtain to utilize, and reducing ink gun needs reciprocating distance, increases printout speed.In addition, for the design of printer, can reduce because of reserving the operating space (workspace) of acceleration and deceleration exceptional space, the space that makes printer use is more efficient, and then effectively reduces cost.
The technology of the present invention analytical test pattern is created in the correction table of comparisons on the locational space, with the sequential that decides the ink-jet control signal.The technology of the present invention need not to use the complexity calculation process in the known technology, need not to use the ability of the instant computing complex data of known technology.The technology of the present invention is used the required ink-jet sequential of the table of comparisons (look-up table) contrast, and the table of comparisons is from being the line generation, and comparatively simple, cost is also lower.
Since of the present invention from the uneven function of dynamic(al) correction ink gun bearing speed can in be built in user's interface, the user can be according to need, or system recommendations, at any time carrying out the oneself detects and proofreaies and correct, and correction program is simple and easy, only need printed test pattern, and start image capture unit acquisition test pattern data.Thereafter analysis and the work of setting up the table of comparisons are then finished automatically by system, and the table of comparisons of finishing, and printing backward can be used.That is the uneven ink-jet print system of automatically calibrating ink gun bearing speed of the present invention can reflect the situation (condition) of integral printer immediately, and carries out suitable correction.So, all can proofread and correct effectively, and obtain best print quality and optimized printout speed for because of mechanical wear, aging, the variation of transmission system (as belt), the factors such as weight change that ink gun causes because of printing.
Therefore, except proofreading and correct the ink droplet landing error that produces because of the acceleration and deceleration zone, the present invention also recoverable is inhomogeneous because of the movement velocity of controlling or the machine factor is produced, to obtain best output result.
From the above, the inhomogeneous ink-jet of automatically calibrating ink gun bearing speed provided by the invention is beaten The ink droplet landing error that produces because of acceleration and deceleration zones not only can be proofreaied and correct by the seal system, also recoverable because of control or Therefore the phenomenon that the movement velocity that mechanical factor produces is inhomogeneous can obtain best print quality and reach The printout speed of goodization. In addition, the present invention can set up the table of comparisons by off-line, therefore, and skill of the present invention Art need not instant a large amount of computing, or complicated hardware circuit, so the technology of the present invention has simple and becomes The advantage of this saving can avoid known technology need use the problem of complicated hardware circuit.
Claims (10)
1, the uneven ink-jet print system of a kind of automatically calibrating ink gun bearing speed is characterized in that comprising:
One test pattern generation device, it produces at least one test pattern;
One printing equipment is coupled to this test pattern generation device, in order to printing on a recording medium by at least one test pattern;
One image capture unit prints on the image of this test pattern of this recording medium in order to acquisition;
One treating apparatus is coupled to this image capture unit, produces comparison list with the image that reads and analyze this test pattern; And
One ink gun bearing control signal generation device receives an ink gun shift position signal, and produces an ink-jet control signal of this ink gun bearing according to this ink gun shift position signal;
Wherein this ink gun bearing control signal generation device is adjusted the sequential of this ink-jet control signal according to this table of comparisons.
2, ink-jet print system according to claim 1 is characterized in that: described test pattern can be multi-drop line to be formed, and described treating apparatus is analyzed the degree of registration and the offset error of this multi-drop line image, and produces this table of comparisons; Or described test pattern can be made up of a plurality of color lumps, and described treating apparatus is analyzed the aberration degrees of offset of these a plurality of color lump images, and produces this table of comparisons.
3, ink-jet print system as claimed in claim 1 is characterized in that: the described table of comparisons is the locational space function, comprise ink gun be seated against between print zone in the retardation values of ink-jet control signal of every bit position correspondence.
4, ink-jet print system as claimed in claim 3, it is characterized in that: described treating apparatus is when producing the table of comparisons, be that this test pattern according to the acquisition of this image capture unit is at each locational OD value, and with this position on optical density theoretical value relatively, calculate the required retardation values of ink-jet control signal of this position correspondence, thereby set up the table of comparisons.
5, a kind of uneven method of speed of automatically calibrating ink gun bearing is characterized in that comprising:
(A) receive an automatic alignment requirements;
(B), under specific printing model, on a recording medium, print at least one test pattern according to this automatic alignment requirements;
(C) capture the image of this test pattern of this recording medium, and analyze the image of this test pattern and produce comparison list; And
(D) adjust the sequential of the ink-jet control signal of this ink gun bearing according to this table of comparisons, and export adjusted this ink-jet control signal.
6, method according to claim 5, it is characterized in that: this test pattern can be the multi-drop line composition in the described step (B), described step (C) is analyzed the degree of registration and the offset error of this multi-drop line image, and produce this table of comparisons, or this test pattern can be a plurality of color lumps compositions in the described step (B), described step (C) is analyzed the aberration degrees of offset of these a plurality of color lump images, and produces this table of comparisons.
7, method according to claim 5, it is characterized in that: the table of comparisons that this ink gun is suitable for is at this ink gun ink characteristics, set table of comparisons initial value earlier, printed test pattern, capture the optical density of this test pattern, produce one and upgrade the table of comparisons, find out trend according to the result of recurrence last time, recurrence is upgraded the table of comparisons again, and progressively convergence obtains the table of comparisons that this ink gun is suitable for.
8, method according to claim 7, it is characterized in that: when producing the table of comparisons, be that this test pattern according to the acquisition of this image capture unit is at each locational OD value, and with this position on optical density theoretical value relatively, calculate the required retardation values of ink jet signal of this position correspondence, thereby set up the table of comparisons.
9, ink-jet print system as claimed in claim 5 is characterized in that: the described table of comparisons can produce by off-line.
10, the uneven ink-jet print system of a kind of automatically calibrating ink gun bearing speed is characterized in that comprising:
One test pattern generation device, it produces at least one test pattern;
One printing equipment is coupled to this test pattern generation device, in order to printing on a recording medium by at least one test pattern;
One image capture unit is in order to the image of this test pattern of capturing this recording medium;
One treating apparatus is coupled to this image capture unit, produces comparison list with the image that reads and analyze this test pattern;
One ink gun bearing control signal generation device receives an ink gun shift position signal, and produces the ink-jet control signal of this ink gun bearing according to this ink gun shift position signal; And
The comparison list device, system is connected to this treating apparatus and this ink gun bearing control signal generation device, this table of comparisons device receives this table of comparisons that this treating apparatus produces, this table of comparisons device and according to this table of comparisons, adjust the sequential of the ink-jet control signal of this ink gun bearing, produce an adjusted ink-jet control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610126816A CN100577431C (en) | 2006-09-05 | 2006-09-05 | Method for automatically correcting the nonhomogeneity of the ink jet head bearing speed and system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610126816A CN100577431C (en) | 2006-09-05 | 2006-09-05 | Method for automatically correcting the nonhomogeneity of the ink jet head bearing speed and system thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101138912A CN101138912A (en) | 2008-03-12 |
| CN100577431C true CN100577431C (en) | 2010-01-06 |
Family
ID=39191093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610126816A Expired - Fee Related CN100577431C (en) | 2006-09-05 | 2006-09-05 | Method for automatically correcting the nonhomogeneity of the ink jet head bearing speed and system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100577431C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111098611B (en) * | 2018-10-25 | 2022-01-18 | 深圳市邻友通科技发展有限公司 | Control method and device of printing device, storage medium and nail printing equipment |
| CN110816064A (en) * | 2019-05-23 | 2020-02-21 | 深圳圣德京粤科技有限公司 | Method for adjusting splicing among inkjet printing nozzles |
| CN112477438B (en) * | 2020-11-13 | 2021-09-21 | 深圳汉弘软件技术有限公司 | Printing method, printing device, ink-jet printer and storage medium |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6361137B1 (en) * | 1998-09-28 | 2002-03-26 | Hewlett-Packard Company | Method and apparatus for compensating for variations in printhead-to-media spacing and printhead scanning velocity in an ink-jet hard copy apparatus |
-
2006
- 2006-09-05 CN CN200610126816A patent/CN100577431C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6361137B1 (en) * | 1998-09-28 | 2002-03-26 | Hewlett-Packard Company | Method and apparatus for compensating for variations in printhead-to-media spacing and printhead scanning velocity in an ink-jet hard copy apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101138912A (en) | 2008-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6769759B2 (en) | Printing with selection of sub-scanning | |
| US6297888B1 (en) | Automatic alignment of print heads | |
| US8964238B2 (en) | Recording method and recording apparatus | |
| JP6878818B2 (en) | Inkjet device and density adjustment method for inkjet device | |
| US7976145B2 (en) | Recording method | |
| US8251477B2 (en) | Multipass printing method | |
| CN101204888A (en) | Printer applicable to uni-directional printing adjusting printing deviation and adjusting method | |
| CN1876372A (en) | Ink jet printing system | |
| US20070052745A1 (en) | Image forming apparatus and image forming method | |
| JP6021872B2 (en) | Recording apparatus and recording position adjusting method | |
| JP2012148535A (en) | Recording method and recording apparatus | |
| EP2479711B1 (en) | Recording method and recording apparatus | |
| US8371671B2 (en) | Printing apparatus | |
| CN100577431C (en) | Method for automatically correcting the nonhomogeneity of the ink jet head bearing speed and system thereof | |
| US20090002766A1 (en) | Image processing apparatus and method thereof | |
| US20200079105A1 (en) | Determining method of density correction value, printing apparatus, printing method, and method of correcting printing density | |
| US8136919B2 (en) | Ink jet recording apparatus and ink jet recording head | |
| CN101117061A (en) | Method for printing a print substrate | |
| CN1138633C (en) | Image forming device | |
| US7681979B2 (en) | Inkjet printing system and method capable of automatically calibrating a non-uniform speed of a printhead carriage | |
| US8579400B2 (en) | Information processing apparatus and information processing method | |
| US20050146548A1 (en) | Method and apparatus of operating a printer | |
| JP2008162067A (en) | Ink jet recorder and recording method | |
| JP2021024127A (en) | Recording device and recording method | |
| JP2003231246A (en) | Paper feeding error correction in printer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100106 Termination date: 20170905 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |