CN1955716A - Ink-jet printer, determination device and method - Google Patents
Ink-jet printer, determination device and method Download PDFInfo
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- CN1955716A CN1955716A CN 200510118488 CN200510118488A CN1955716A CN 1955716 A CN1955716 A CN 1955716A CN 200510118488 CN200510118488 CN 200510118488 CN 200510118488 A CN200510118488 A CN 200510118488A CN 1955716 A CN1955716 A CN 1955716A
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Abstract
A device used for judging out material of media to be printed consists of a lightening source for generating a light source to expose media to be printed, an image transducer for sensing light beam reflected back from media to be printed and for picking up at least one image of media to be printed, an image analysis unit connected to said transducer in electric means for analyzing image to obtain a material parameter being used to judge out material of media to be printed.
Description
Technical field
The present invention relates to a kind of judgement and treat the device and method of print media material, particularly relate to and a kind ofly utilize reflected light that sensing treats print media forming an image, and analyze this image and judge the apparatus and method for the treatment of the print media material and the ink-jet printer of using this device.
Background technology
General printer is when printing, and the effect of printing between different print media has very big difference, and when for example using ink-jet printer, photograph is fine with the effect that paper prints, and ink then can appear in general paper to be played up and hold, and makes the situation of image fog.Therefore when printing, just must manually set material and the kind for the treatment of print media earlier by the user, for example photo paper, general paper, transparency or the like, the material parameter that sets according to the user again of printer is adjusted the quantity of ink and the speed of ink gun ejection then, printing effect in the hope of the best, but will be very consuming time and inconvenient thus, print again after setting earlier the material for the treatment of print media and kind if the user forgets, might make that printing effect is bad or cause meaningless paper waste because of printing again.
Utilize a plurality of light emitting sources and an optical receiver (or a light emitting source and a plurality of optical receiver) to receive reflected light and the transmitted light for the treatment of print media in the prior art and compare its light vector value on coordinate axis and analyze the material for the treatment of print media; Or utilize a rotatable reeded circle wheel, and it is placed in treats the print media rear, observe the reflected light pattern (pattern) that reflects by this circle wheel and judge the material for the treatment of print media.Above-mentioned method all needs the physical construction of more complicated or assembly to work in coordination to draw the right judgement result, needs to pay bigger cost on making.
Summary of the invention
One of purpose of the present invention is to provide a kind of judgement to treat the apparatus and method of print media material and the ink-jet printer of using this device, and it can be judged voluntarily and treats the print media material and do not need the user with manual setting, to address the above problem.
According to the embodiment of the invention, it has disclosed the device that the print media material is treated in a kind of judgement one, and it includes a light emitting source, and this treats print media to expose to be used for producing a light source; One image sensor (imagesensor) is used for sensing to treat at least one image of print media with acquisition corresponding to this from this light beam for the treatment of that print media reflects; And an image analysing computer unit, be electrically connected on this image sensor, be used for analyzing this image obtaining a material parameter, and judge the material that this treats print media according to this material parameter.
According to the embodiment of the invention, it has also disclosed the method that the print media material is treated in a kind of judgement one, and it includes exposure, and this treats print media; Sensing from this treat light beam that print media reflects with acquisition to treating at least one image of print media; And analyze this this image for the treatment of print media obtaining a material parameter, and judge the material that this treats print media according to this material parameter.
According to the embodiment of the invention, it has also disclosed a kind of ink-jet printer for the treatment of the print media material of judging, it includes a light emitting source, and this treats print media to expose to be used for producing a light source; One image sensor (image sensor) is used for sensing to treat at least one image of print media with acquisition corresponding to this from this light beam for the treatment of that print media reflects; One image analysing computer unit is electrically connected on this image sensor, is used for analyzing this image obtaining a material parameter, and judges the material that this treats print media according to this material parameter; One prints control module, is electrically connected on this image analysing computer unit, is used for treating that according to this material of print media sets a dozen print related parameters; And at least one ink gun, be electrically connected on this printing control model, be used for deciding the ejection ink to treat the pattern of print media to this according to this printing correlation parameter.
The present invention judges that the device for the treatment of the print media material is to utilize a light source irradiation this treats print media, then sensing is treated the image of print media with acquisition corresponding to this from this light beam for the treatment of that print media reflects, this image has comprised this and has treated the information of print media material, so just can obtain treating the material parameter that the print media material is relevant with this via analyzing this image, can roughly determine the material that this treats print media after this material parameter of suitable analysis, and using the ink-jet printer of this device, the present invention can pass through this mechanism, automatically precedingly promptly determine the material that this treats print media earlier what this treated that print media is printed, and do not need manually to set by the user, therefore just increase the convenience when using and guaranteed the quality of printing.
Description of drawings
Fig. 1 is the functional block diagram of an embodiment of ink-jet printer of the present invention.
Fig. 2 is the synoptic diagram of a preferred embodiment of judgment means of the present invention.
Fig. 3 is for changing the bidimensional image that draws behind the judgment means use two-dimensional imaging formula image sensor acquisition reflected light among Fig. 2.
The image that conversion drew behind the acquisition reflected light when Fig. 4 used contact image sensor as image sensor for judgment means among Fig. 2.
Fig. 5 treats the process flow diagram of first embodiment of print media material method among Fig. 2 for the present invention judges.
Fig. 6 treats the process flow diagram of second embodiment of print media material method among Fig. 2 for the present invention judges.
Fig. 7 treats the process flow diagram of the 3rd embodiment of print media material method among Fig. 2 for the present invention judges.
The reference numeral explanation
| 10 | Ink-jet printer | 20、120 | Light emitting source |
| 30、130 | Treat print media | 40、140 | Image sensor |
| 50、150 | The image analysing computer unit | 60 | Printing control model |
| 70 | Ink gun | 110 | Judgment means |
| 160 | Dark platform | 170 | Lens |
Embodiment
Please refer to Fig. 1, Fig. 1 is the functional block diagram of an embodiment of ink-jet printer 10 of the present invention.As shown in Figure 1, ink-jet printer 10 includes a light emitting source 20, an image sensor 40, an image analysing computer unit 50, a printing control module 60 and an ink gun 70, wherein light emitting source 20, image sensor 40 also is combined into the present invention with image analysing computer unit 50 and judges the judgment means for the treatment of print media 30 materials, its form with principle of work with other be described in detail in after.When ink-jet printer 10 printed, light emitting source 20 (a for example light emitting diode (LED)) provided light beam L irradiation to treat print media 30, treats print media 30 folded light beam L and produces a reflected light L
R, image sensor 40 receives reflected light L
RThe back produces corresponding to the image for the treatment of print media 30 materials, and send this image to image analysing computer unit 50, then image analysing computer unit 50 is analyzed this image and is judged the material for the treatment of print media 30, printing control model 60 is just according to treating that the material of print media 30 sets print parameters then, last ink gun 70 decides the ejection ink to the printing model for the treatment of print media 30 according to print parameters again, and for example printing model includes ink spray volume and spouting velocity or the like setting.So in print procedure, ink-jet printer 10 detects the material (for example photo paper, general paper, transparency or the like) for the treatment of print media 30 automatically, and then comes the automatic setting print parameters according to the material for the treatment of print media 30, to obtain best printing effect.
Among Fig. 1, judgment means mainly is made of with image analysing computer unit 50 light emitting source 20, image sensor 40, yet it only is used as the example explanation, and the assembly of judgment means of the present invention is formed not as limit.Please refer to Fig. 2, Fig. 2 is the synoptic diagram of a preferred embodiment of judgment means 110 of the present invention.As shown in the figure, judgment means 110 includes a light emitting source 120, is used for producing a light source and treats print media 130 with exposure; One image sensor 140, be used for sensing from the light beam treating print media 130 and reflected with acquisition corresponding at least one image for the treatment of print media 130; One lens (lens) 170 are used for assembling the light beam from treating that print media 130 is reflected, and it is focused on the image sensor 140; And an image analysing computer unit 150, be used for analyzing this image obtaining a material parameter, and judge the material for the treatment of print media 130 according to this material parameter.At first light emitting source 120 sends a light source irradiation and treats print media 130, treat that print media 130 is seated on the dark platform (platform) 160, therefore, treat that print media 130 just reflects a reflected light, clearly, catoptrical intensity is relevant with the material for the treatment of print media 130, for example the material of photo paper is more careful smooth, its catoptrical intensity is just stronger, and transparency is because itself be transparent, so incident light may most of be absorbed by beneath dark platform 160 (for example black platform), so reflection attenuation light intensity significantly.As mentioned above, catoptrical light intensity has implied the information of the material for the treatment of print media 130, for more accurate analysis reflected light, among this embodiment, catoptrical path is provided with lens 170, be used for reflected light is focused on the image sensor 140, then image sensor 140 converts catoptrical light intensity to image, so the material for the treatment of print media 130 just can further be judged according to the material parameter at last by analyzing image to obtain earlier corresponding to the material parameter for the treatment of print media 130 after receiving image again in image analysing computer unit 150.In order to improve material accuracy of judgement degree, in this preferred embodiment, judgment means 110 is provided with lens 170, yet lens 170 are not to be necessary assembly, that is, can determine whether in judgment means 110 of the present invention, lens 170 being set according to design requirement.
Please refer to Fig. 2 and Fig. 3, Fig. 3 changes the image that draws after the image sensor 140 in Fig. 2 judgment means 110 captures reflected light.Image sensor 140 can be implemented with various optical sensors, the present embodiment image sensor that generally light is converted to bidimensional image of passing the imperial examinations at the provincial level is an example, its image that scans bidimensional image 210 as shown in Figure 3,220 and 230, bidimensional image 210, include a plurality of pixels (pixel) in 220 and 230, wherein the light intensity according to each pixel can be divided into bright spot and dim spot, image analysing computer unit 150 is just according to bidimensional image 210, the ratio of bright spot and dim spot number can calculate a material parameter in 220 and 230, again material parameter and one group of threshold value are compared, just can judge the material for the treatment of print media 130 according to the magnitude relationship of material parameter in this group threshold value, usually this group threshold value is an electric signal, for example magnitude of voltage or current value.For instance, bidimensional image can be set at the bright spot number, and more then the material parameter is bigger greater than the dim spot number, utilize a simple comparator circuit can learn that just the material parameter is between two bigger magnitudes of voltage this moment, so just can judge that catoptrical light intensity is very strong this moment, that is treat that print media 130 may be smooth photo paper, shown in the bidimensional image among Fig. 3 230; Just can judge when the material parameter is between two less magnitudes of voltage that conversely speaking, catoptrical light intensity is very weak, then just can judge and treat that print media 130 may be more coarse paper such as recycled writing paper, shown in the bidimensional image among Fig. 3 220; When treating print media 130 for transparent materials such as transparencys, owing to treat that print media 130 is seated on the dark platform 160, so bidimensional image corresponding with it shown in the bidimensional image among Fig. 3 210, almost is dim spot entirely just, so its material parameter is less than a default minimum voltage value.
Please note, image sensor 140 in the embodiment of the invention can also utilize the optical sensor of one-dimensional image to implement, contact image sensor (contact image sensor for example, CIS), its place different with above-mentioned two-dimensional imaging formula image sensor is that the employed lens 170 of contact image sensor must be gradual index lens (GRIN lens).Please refer to Fig. 2 and Fig. 4, the image that conversion drew behind the acquisition reflected light when Fig. 4 used contact image sensor as image sensor 140 for judgment means among Fig. 2 110.Because when the contact image sensor sensing is treated the reflected light of print media 130, it is that mode with one-dimensional linear scans, therefore behind contiguous several sweep traces one dimension image 301～308 is inputed to image analysing computer unit 150 in the contact image sensor continuous sweep zone, image analysing computer unit 150 is the synthetic bidimensional image 320 of contiguous scanline groups, afterwards again according to above-mentioned judge with bidimensional image treat that the method for print media 130 materials judges the material for the treatment of print media 130.
Please refer to Fig. 2 and Fig. 5, Fig. 5 treats the process flow diagram of first embodiment of print media 130 material methods among Fig. 2 for the present invention judges.Above-mentioned judgement treats that the operation arrangement of print media 130 materials is as follows:
Step 410: beginning;
Step 420: utilize a light emitting source 120 to treat print media 130;
Step 430: use lens 170 with the reflected light adequate focusing to produce image clearly;
Step 440: use image sensor 140 sensing intensities of reflected light and acquisition to treat the image of an ad-hoc location on the print media 130;
Step 450: use image analysing computer unit 150 to analyze this image to draw a material parameter;
Step 460: relatively this material parameter and one group of threshold value (for example magnitude of voltage or current value) are judged the material for the treatment of print media 130 to use image analysing computer unit 150;
Step 470: finish.
Above-mentioned judgment mechanism only is a kind of embodiment, and the present invention also can use the judgement that other mechanism is treated the material of print media 130.For instance, in order to infer the material for the treatment of print media 130 more accurately, image sensor 140 can capture respectively treat print media 130 diverse locations reflected light to obtain a plurality of images, and adopt said methods to obtain a plurality of material parameters according to these a plurality of images, relatively these a plurality of material parameters and one group of threshold value are then judged the material that this treats print media 130 according to these a plurality of reference parameters again to determine a plurality of reference parameters respectively in 150 of image analysing computer unit.Please refer to Fig. 2 and Fig. 6, Fig. 6 treats the process flow diagram of second embodiment of print media 130 material methods among Fig. 2 for the present invention judges.Its step-by-step procedures is as follows:
Step 510: beginning;
Step 520: utilize a light emitting source 120 to treat print media 130;
Step 530: use lens 170 with the reflected light adequate focusing to produce image clearly;
Step 540: use image sensor 140 sensing intensities of reflected light and capture a plurality of images for the treatment of print media 130 diverse locations respectively;
Step 550: use image analysing computer unit 150 to analyze each image to draw a plurality of material parameters;
Step 560: use image analysing computer unit 150 respectively each material parameter and one group of threshold value (for example magnitude of voltage or current value) to be compared and decide a plurality of reference parameters;
Step 570: use image analysing computer unit 150 to treat the material of print media 130 according to these a plurality of reference parameters and this group threshold decision;
Step 580: finish.
Above-mentioned judgement treats that the operation of print media 130 materials is described in detail as follows.For instance, image sensor 140 has captured ten same images for the treatment of the diverse location of print media 130,150 of image analysing computer unit draw ten material parameters at bright spot in these ten images and dim spot ratio, respectively these ten material parameters and one group of magnitude of voltage are compared, if seven material parameters are arranged between first and second magnitude of voltage, then define one first reference parameter (for example these seven material parameters being averaged), it is worth between first and second magnitude of voltage; Other have two material parameters between second and the tertiary voltage value between, then define one second reference parameter, its value between second and the tertiary voltage value between; Other has a material parameter between the 3rd and the 4th magnitude of voltage, then defines one the 3rd reference parameter, and it is worth between the 3rd and the 4th magnitude of voltage; Analyze the drop point of these ten material parameters in this group voltage dividing value as can be known with the most representative between first and second magnitude of voltage, so just be used as judging the foundation of the material for the treatment of print media 130 with first reference parameter between first and second magnitude of voltage.If first and second magnitude of voltage all represents the bright spot number more than the dim spot number, just can judge and treat that print media 130 is made up of smooth material haply, as photo paper; On the other hand, if first and second magnitude of voltage all represents the dim spot number more than the bright spot number, then judge and treat that print media 130 is made up of coarse material haply, as recycled writing paper.
Another one judges that according to a plurality of images the method for the treatment of print media 130 materials is: should the pairing material parameter of a plurality of images get a mean value earlier, then relatively this mean value and one group of threshold value are judged the material that this treats print media 130 again.Please refer to Fig. 2 and Fig. 7, Fig. 7 treats the process flow diagram of the 3rd embodiment of print media 130 material methods among Fig. 2 for the present invention judges.Its step-by-step procedures is as follows:
Step 610: beginning;
Step 620: utilize a light emitting source 120 to treat print media 130;
Step 630: use lens 170 with the reflected light adequate focusing to produce image clearly;
Step 640: use image sensor 140 sensing intensities of reflected light and capture a plurality of images for the treatment of print media 130 diverse locations respectively;
Step 650: use image analysing computer unit 150 to analyze each image to draw a plurality of material parameters;
Step 660: use image analysing computer unit 150 a plurality of material parameters to average;
Step 670: use image analysing computer unit 150 that mean value and one group of threshold value (for example magnitude of voltage or current value) are compared and judge the material for the treatment of print media 130;
Step 680: finish.
Above-mentioned judgement treats that the operation of print media 130 materials is described in detail as follows.Because this mean value has been represented and treated print media 130 characteristic haply, therefore can reason out the material that this treats print media 130 according to this mean value.For example image sensor 140 has captured ten same images for the treatment of the diverse location of print media 130,150 of image analysing computer unit draw ten material parameters at bright spot in these ten images and dim spot ratio, again these ten material parameters are taken out a mean value earlier, the drop point of supposing this mean value is arranged between two bigger magnitudes of voltage of this group magnitude of voltage, then can judge and treat that print media 130 is made up of smooth material haply, as photo paper, if the drop point of this mean value is arranged between two less magnitudes of voltage of this group magnitude of voltage, then can judge and treat that print media 130 is made up of coarse material haply, as recycled writing paper.
The above only is preferred embodiment of the present invention, and all equalizations of doing according to claim of the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (25)
1. judge that one treats the device of print media material for one kind, it includes:
One light emitting source, this treats print media to expose to be used for producing a light source;
One image sensor is used for sensing to treat at least one image of print media with acquisition corresponding to this from this light beam for the treatment of that print media reflects; And
One image analysing computer unit is electrically connected on this image sensor, is used for analyzing this image obtaining a material parameter, and judges the material that this treats print media according to this material parameter.
2. device as claimed in claim 1, wherein this light emitting source is a light emitting diode.
3. device as claimed in claim 1, wherein relatively this material parameter and one group of threshold value are judged the material that this treats print media in this image analysing computer unit.
4. device as claimed in claim 1, wherein this image sensor captures this a plurality of images for the treatment of the print media diverse location, and these a plurality of images of this image analysing computer element analysis obtain corresponding a plurality of material parameter, and judge the material that this treats print media according to these a plurality of material parameters.
5. device as claimed in claim 4, wherein relatively these a plurality of material parameters and one group of threshold value are judged the material that this treats print media according to these a plurality of reference parameters again to determine a plurality of reference parameters respectively in this image analysing computer unit.
6. device as claimed in claim 4, wherein a mean value should a plurality of material parameters be got in this image analysing computer unit, and relatively this mean value and one group of threshold value are judged the material that this treats print media again.
7. device as claimed in claim 1, wherein this image sensor is a contact image sensor.
8. device as claimed in claim 7, it also includes a gradual index lens, is used for assembling from this treating the light beam that print media reflects, and it is focused on this contact image sensor.
9. device as claimed in claim 1, it also includes lens, is used for assembling from this treating the light beam that print media reflects, and it is focused on this image sensor.
10. judge that one treats the method for print media material for one kind, it includes:
Exposing, this treats print media;
Sensing from this treat light beam that print media reflects with acquisition to treating at least one image of print media; And
Analyze this this image for the treatment of print media obtaining a material parameter, and judge the material that this treats print media according to this material parameter.
11. method as claimed in claim 10 wherein judges that according to this material parameter this step for the treatment of the material of print media also includes:
Relatively this material parameter and one group of threshold value are judged the material that this treats print media.
12. method as claimed in claim 10, it also includes:
Capture a plurality of images that this treats the print media diverse location, and analyze and judge the material that this treats print media corresponding to a plurality of material parameters of these a plurality of images.
13. method as claimed in claim 12, wherein analyze corresponding to a plurality of material parameters of these a plurality of images and judge that the step of the material that this treats print media is for relatively these a plurality of material parameters and one group of threshold value are judged the material that this treats print media according to these a plurality of reference parameters again to determine a plurality of reference parameters respectively.
14. method as claimed in claim 12, wherein analyze judge the material that this treats print media corresponding to a plurality of material parameters of these a plurality of images step for should a plurality of material parameters getting a mean value, relatively this mean value and one group of threshold value are judged the material that this treats print media again.
15. method as claimed in claim 10, wherein this material parameter is treated the intensity of reflected light of print media corresponding to this.
16. method as claimed in claim 10, it also includes:
Gathering is treated the light beam that print media reflects by this, and makes its adequate focusing to capture image more clearly.
17. can judge the ink-jet printer for the treatment of the print media material for one kind, it includes:
One light emitting source, this treats print media to expose to be used for producing a light source;
One image sensor is used for sensing to treat at least one image of print media with acquisition corresponding to this from this light beam for the treatment of that print media reflects;
One image analysing computer unit is electrically connected on this image sensor, is used for analyzing this image obtaining a material parameter, and judges the material that this treats print media according to this material parameter;
One prints control module, is electrically connected on this image analysing computer unit, is used for treating that according to this material of print media sets one and print parameter; And
At least one ink gun is electrically connected on this printing control model, is used for deciding the ejection ink to treat the pattern of print media to this according to this print parameters.
18. ink-jet printer as claimed in claim 17, wherein this light emitting source is a light emitting diode.
19. ink-jet printer as claimed in claim 17, wherein relatively this material parameter and one group of threshold value are judged the material that this treats print media in this image analysing computer unit.
20. ink-jet printer as claimed in claim 17, wherein this image sensor captures this a plurality of images for the treatment of the print media diverse location, and these a plurality of images of this image analysing computer element analysis obtain corresponding a plurality of material parameter, and judge the material that this treats print media according to these a plurality of material parameters.
21. ink-jet printer as claimed in claim 20, wherein this image analysing computer unit respectively relatively these a plurality of material parameters with organize threshold value to determine a plurality of reference parameters one by one, judge the material that this treats print media according to these a plurality of reference parameters again.
22. ink-jet printer as claimed in claim 20, wherein a mean value should a plurality of material parameters be got in this image analysing computer unit, and relatively this mean value and one group of threshold value are judged the material that this treats print media again.
23. ink-jet printer as claimed in claim 17, wherein this image sensor is a contact image sensor.
24. ink-jet printer as claimed in claim 23 wherein also includes a gradual index lens, is used for assembling from this and treats the light beam that print media reflects, and it is focused on this contact image sensor.
25. ink-jet printer as claimed in claim 17 wherein also includes lens, is used for assembling from this and treats the light beam that print media reflects, and it is focused on this image sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101184889A CN100507512C (en) | 2005-10-27 | 2005-10-27 | Ink-jet printer, determination device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101184889A CN100507512C (en) | 2005-10-27 | 2005-10-27 | Ink-jet printer, determination device and method |
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| Publication Number | Publication Date |
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| CN1955716A true CN1955716A (en) | 2007-05-02 |
| CN100507512C CN100507512C (en) | 2009-07-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108274907A (en) * | 2018-01-02 | 2018-07-13 | 厦门盈趣科技股份有限公司 | A kind of anti-loaded detection device of printer heat-sensitive paper and method based on image sensing technology |
| CN111497443A (en) * | 2019-01-31 | 2020-08-07 | 精工爱普生株式会社 | Printing apparatus, machine learning apparatus, and machine learning method |
-
2005
- 2005-10-27 CN CNB2005101184889A patent/CN100507512C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108274907A (en) * | 2018-01-02 | 2018-07-13 | 厦门盈趣科技股份有限公司 | A kind of anti-loaded detection device of printer heat-sensitive paper and method based on image sensing technology |
| CN111497443A (en) * | 2019-01-31 | 2020-08-07 | 精工爱普生株式会社 | Printing apparatus, machine learning apparatus, and machine learning method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100507512C (en) | 2009-07-01 |
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