CN100548699C - Heat printing device and Method of printing thereof - Google Patents
Heat printing device and Method of printing thereof Download PDFInfo
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- CN100548699C CN100548699C CNB2006101359873A CN200610135987A CN100548699C CN 100548699 C CN100548699 C CN 100548699C CN B2006101359873 A CNB2006101359873 A CN B2006101359873A CN 200610135987 A CN200610135987 A CN 200610135987A CN 100548699 C CN100548699 C CN 100548699C
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- printing
- pairing
- write interval
- bit
- target bit
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Abstract
The invention provides a kind of heat printing device and Method of printing thereof.A Method of printing proposed by the invention includes: provide the color range with pixel to be worth corresponding n bit value, wherein the color range value scope of this pixel is by 0 to 2
n-1; According to the bit significance of target bit in this n bit value, determine pairing total time-write interval of this target bit; And,, drive the heating unit band of checking colors off and on and heat then in this target bit in the pairing time-write interval if this target bit is a predetermined value.
Description
Technical field
The relevant hot print technology of the present invention refers to heat printing device and Method of printing thereof especially.
Background technology
The image printing technology generally can briefly be divided into four big classes such as mosaic printing, inkjet printing, laser printing and hot print.The hot print technology is divided into direct heat again and prints (Direct Thermal) and hot transfer printing printing (Thermal Transfer) two kinds, and wherein hot transfer printing is printed and comprised heat sublimation (ThermalSublimation) and two kinds of printing techniques of hot wax (Thermal Wax).With hot transfer printing printing technique is example, because hot transfer printing printing technique can reach the printing performance of continuous color range (continuous tone), so its image output quality is better than other printing technique.As everyone knows, thermal transfer printer utilizes thermal printer head (thermal print head) to heat colour band, with the dye transfer on the colour band to media to be printed, and according to the heating time length or the temperature of heating just form continuous color range.
In conventional art, if thermal transfer printer will be exported the image with 256 color ranges, then the control circuit of thermal transfer printer must convert the image value of all pixels on each row image to 256 color range data respectively, and divides and be transferred to thermal printer head in regular turn 256 times.This thermal printer head can carry out 256 times printing action according to described color range data, to finish the print routine of this row image.In aforesaid print procedure, the color range data volume of required transmission between control circuit and the thermal printer head is quite huge.The transmission action of these color range data is not only consuming time, also can cause the burden of thermal transfer printer in firmware control, and then has influence on the whole print performance of thermal transfer printer.
Summary of the invention
Therefore, one object of the present invention is to provide a kind of heat printing device and Method of printing thereof, to address the above problem.
This specification provides a kind of embodiment of Method of printing of heat printing device, includes: provide the color range with pixel to be worth corresponding n bit value, wherein the color range value scope of this pixel is by 0 to 2
n-1; According to the bit significance of target bit in this n bit value, determine pairing total time-write interval of this target bit; And,, drive the heating unit band of checking colors off and on and heat then in this target bit in the pairing time-write interval if this target bit is a predetermined value; Wherein, pairing total time-write interval of this target bit is different from the pairing total time-write interval of another one in this n bit value.
This specification provides a kind of embodiment of heat printing device, and it includes: control circuit, and the color range that is used to provide with pixel is worth corresponding n bit value, and wherein the color range value scope of this pixel is by 0 to 2
n-1; And thermal printer head, it includes heating unit, and this thermal printer head can determine pairing total time-write interval of this target bit according to the bit significance of target bit in this n bit value; Wherein if this target bit is a predetermined value, then this thermal printer head can be in this target bit in the pairing time-write interval, drives this heating unit band of checking colors off and on and heats; Wherein, pairing total time-write interval of this target bit is different from the pairing total time-write interval of another one in this n bit value.
Description of drawings
Fig. 1 is the calcspar after the embodiment of printing equipment of the present invention simplifies.
Fig. 2 is the flow chart of first embodiment of description hot print method of the present invention.
Fig. 3 is the flow chart of second embodiment of description hot print method of the present invention.
Fig. 4 is for describing thermal printer head the intermesh sequential chart of the embodiment that arranges of coordination pairing printing period not among Fig. 1.
[primary clustering symbol description]
| 100 | |
| 110 | |
| 120 | |
| 130 | The colour |
| 140 | The colour |
| 150 | |
| 160 | The |
| 200 | |
| 210、220、230、240、250、310、320、 330、340、350、360 | Step |
| 400 | Sequential chart |
The specific embodiment
In the middle of specification and follow-up claims, used some vocabulary to censure specific assembly.Those skilled in the art should understand, and same assembly may be called with different nouns by manufacturer.This specification and follow-up claims are not used as distinguishing the mode of assembly with the difference of title, but the benchmark that is used as distinguishing with the difference of assembly on function.Be open term mentioned " comprising " in the middle of specification and the follow-up claim in the whole text, so should be construed to " comprise but be not limited to ".In addition, " couple " speech and comprise any indirect electrical connection means that directly reach at this.Therefore, be coupled to second device, then represent this first device can directly be electrically connected on this second device, or be electrically connected to this second device indirectly by other device or connection means if describe first device in the literary composition.
Please refer to Fig. 1, its illustrate is the calcspar of the heat printing device 100 of the embodiment of the invention after simplifying.As shown in the figure, heat printing device 100 includes control circuit 110, thermal printer head 120, colour band feed end 130 and colour band recovery end 140.Include a plurality of heating units (heatingelement, not shown) in the thermal printer head 120, be used for colour band 150 is heated.Generally speaking, each heating unit is used for heating the zone that corresponds to pixel in the colour band 150.In operation, colour band 150 can be moved by the direction of colour band feed end 130 to colour band recovery end 140, and thermal printer head 120 can optionally drive described heating unit according to the color range data that control circuit 110 transmits and heats colour band 150, dye transfer on the colour band 150 is arrived on the target media 160 (for example paper or card), to reach the purpose of image printing.
In the application of colour print; can arrange the dyes in different colors block in regular turn on colour band 150, these dyestuff blocks are arranged with the sequential loop of yellow (yellow), carmetta (magenta), indigo (cyan) and diaphragm (over coating) usually.Colour band recovery end 140 can use thermal printer head 120 colour band part later to be reclaimed.In fact, colour band feed end 130 is realized with all available roller of colour band recovery end 140, but is not limited thereto.Below, will further specify the mode of operation of heat printing device 100 with reference to figure 2.
Fig. 2 is the flow process Figure 200 that describes first embodiment of hot print method of the present invention.Because the type of drive of each heating unit of thermal printer head 120 is very similar, for for purpose of brevity, below only be illustrated with regard to the type of drive of single heating unit.The step division that flow process Figure 200 is comprised is as follows.
In step 210, the control circuit 110 of heat printing device 100 can provide and be used for the n bit value of color range value of represent pixel to thermal printer head 120, and wherein the color range value scope of this pixel is by 0 to 2
n-1.For example, if the color range value scope of this pixel is by 0 to 255, then n equals 8, and if the color range value scope of this pixel by 0 to 511, then n equals 9.In the present embodiment, this n bit value is b
nb
N-1b
N-2... b
1, b wherein
nFor highest significant position (most significant bit, MSB), and b
1For least significant bit (leastsignificant bit, LSB).Suppose that n equals 8, if the color range value of this pixel is 0, then this n bit value is 00000000; If the color range value of this pixel is 128, then this n bit value is 10000000; If the color range value of this pixel is 255, then this n bit value is 11111111; The rest may be inferred for all the other.In operation, control circuit 110 can utilize serial transmission mode or parallel transmission mode that this n bit value is passed to thermal printer head 120.
In fact, this n bit value can be that control circuit 110 produces according to the image data of desiring to print on the target media 160, or control circuit 110 is from the received data of external device (ED) (for example computer or camera or the like).In addition, control circuit 110 can be the microprocessor in the heat printing device 100, or specialized designs be used for realizing aforementioned functional application integrated circuit (Application SpecificIntegrated Circuit, ASIC).
In step 220, thermal printer head 120 can be according to each b in this n bit value
iBit significance (bit significance), decide this b
i(total print time) T of pairing total time-write interval
iBecause each bit significance is all different in this n bit value, so pairing total time-write interval is also different.For example, in the present embodiment, each b
iPairing total time-write interval T
iBe essentially the lower phase ortho position b of importance
I-1Pairing total time-write interval T
I-1Twice.Therefore, position b
2Pairing total time-write interval T
2Be essentially a b
1Pairing total time-write interval T
1Twice; Position b
3Pairing total time-write interval T
3Be essentially T
2Twice; Position b
4Pairing total time-write interval T
4Be essentially T
32 times; The rest may be inferred for all the other.From the above, the highest significant position b in this n bit value
nPairing total time-write interval T
nBe essentially least significant bit b
1Pairing total time-write interval T
12
N-1Doubly.
In the present embodiment, thermal printer head 120 can be according to this b
iPairing total time-write interval T
i, decision and this b
i(print period) P of corresponding printing period
i
In step 230, thermal printer head 120 can be according to each b
iValue decide follow-up operation.Furthermore, if this b
iBe predetermined value, then thermal printer head 120 can carry out step 240; Otherwise then thermal printer head 120 can carry out step 250.In the present embodiment, this predetermined value is 1.
In step 240, thermal printer head 120 can be at this b
iThe pairing time-write interval (that is should be printed period P
i) in, (intermittently) drives with the corresponding heating unit of this pixel to come colour band 150 is heated off and on, with the dye transfer of colour band 150 to the target media 160 with the corresponding position of this pixel.For example, thermal printer head 120 can alternately enable (enable) according to the frequency signal (not shown) and forbid (disable) this heating unit, to reach the intermittent purpose that drives this heating unit.Note that the each time length that drive these heating units of thermal printer head 120 can be the same or different, and can be that fixed value also can be optionally and change the blanking time of double this heating unit of driving.The advantage that drives this heating unit off and on is to avoid this heating unit to cause the excessive situation of temperature rising because of Continuous Drive.Generally speaking, the temperature of heating unit can be exponential relationship with the time of thermal printer head 120 these heating units of Continuous Drive.Particularly, if the time of thermal printer head 120 these heating units of Continuous Drive doubles, then the temperature of this heating unit can increase more than one times usually.Because the thermal printer head 120 of present embodiment utilizes the intermittent mode that drives this heating unit, so can effectively promote the heating-up temperature of heating unit and the linearity between the time-write interval.
On the other hand, if this b
iBe 0, then thermal printer head 120 is at this b
iThe pairing time-write interval (that is should be printed period P
i) in, can't drive and the corresponding heating unit of this pixel (step 250).
The enforcement order that note that each step among aforementioned flow process Figure 200 is an embodiment only, is not limitation actual embodiment of the present invention.
From the above, when printing equipment 100 image color range numbers to be presented be 2
nThe time, only need carry out n time color range transfer of data action between aforementioned control circuit 110 and the thermal printer head 120, thus the required time of color range transfer of data can significantly be reduced, and then promote the whole print performance of heat printing device 100.
In aforesaid explanation, thermal printer head 120 can be according to each b
iPairing total time-write interval T
iDecide and this b
iCorresponding printing period P
iThis is an embodiment only, but not limits to actual embodiment of the present invention.In the practical operation, thermal printer head 120 also can be with each b
iPairing total time-write interval T
iBe divided into a plurality of discontinuous printing periods, and will be not the arrangement that intermeshes of pairing printings period of coordination, with the time of further dispersion thermal printer head 120 driving heating units.
Please refer to Fig. 3, it has described the flow chart 300 of second embodiment of hot print method of the present invention.Step 310 in the flow chart 300 is basic identical with 220 with aforesaid step 210 respectively with 320 operation, for for purpose of brevity, in this not repeat specification.
In step 330, thermal printer head 120 can be with position b
iPairing total time-write interval T
iBe divided into a plurality of discontinuous printing periods, shown in the sequential chart among Fig. 4 400.Represent the not coordination pairing printing period with the pattern of different shadings in Fig. 4, for example the vertical stripes shading is represented position b
nThe pairing printing period, the point-like shading is represented position b
N-1The pairing printing period, and the horizontal stripe shading is represented position b
N-2The pairing printing period.In one embodiment, position b
iPairing these a plurality of printing periods have essentially identical time span.In another embodiment, have at least a time span of printing the period to be different from the time span that other prints the period in these a plurality of printing periods.In other words, the present invention does not limit to the time span of respectively printing the period.In the practical operation, thermal printer head 120 also can be finely tuned the time span of respectively printing the period respectively, to carry out suitable thermal compensation.
In step 340, thermal printer head 120 can be according to position b
iValue decide follow-up operation.Furthermore, if this b
iBe predetermined value, then thermal printer head 120 can carry out step 350; Anti-, then thermal printer head 120 can carry out step 360.In the present embodiment, this predetermined value is 1.
In step 350, thermal printer head 120 can be at this b
iIn pairing these a plurality of printing periods, drive off and on the corresponding heating unit of this pixel to come colour band 150 is heated, with the dye transfer of colour band 150 to the target media 160 with the corresponding position of this pixel.Similar with previous embodiment, thermal printer head 120 can alternately enable and forbids this heating unit according to the frequency signal (not shown), to reach the intermittent purpose that drives this heating unit.
On the other hand, if this b
iBe 0, then thermal printer head 120 is at this b
iIn pairing these a plurality of printing periods, can't drive and the corresponding heating unit of this pixel (step 360).
As shown in Figure 4, thermal printer head 120 arrangement that also coordination pairing printing period not can be intermeshed, the time that makes thermal printer head 120 drive these heating units can spread out, with the heating-up temperature that further promotes heating unit and the linearity between the time-write interval.Perhaps, thermal printer head 120 also can be at same position b
iThe blank period of inserting suitable length respectively in the interval of pairing a plurality of printing periods, wherein thermal printer head 120 can't drive this heating unit in each blank period.
In fact, thermal printer head 120 also can be at this b
iBit significance when reaching predetermined extent, just with this b
iPairing total time-write interval T
iBe divided into a plurality of printing periods.For example, thermal printer head 120 can be in this b
iDuring for one of them of the m of this n bit value higher significance bit, just with this b
iPairing total time-write interval T
iBe divided into a plurality of printing periods, wherein m is less than n.
By as can be known aforementioned, aforementioned Method of printing can improve the accumulation of heat and the distribution scenario of the heating unit of thermal printer head 120, the quality of printing image can be promoted by the performance of improving temperature-compensating on the one hand, the time of waiting for heat radiation or the heat radiation cost that reduces system (for example saving the quantity and size or the like of fan and fin) can be reduced on the other hand.
Please note, the framework of aforementioned hot printing equipment 100 and relevant Method of printing, can be applicable to various electronic installations, for example duplicator, photo printer, card puncher and multifunctional paper feeding machine (multi-function product) or the like with image printing function.
The above only is preferred embodiment of the present invention, and all equivalent variations and modifications of doing according to claims of the present invention all should belong to covering scope of the present invention.
Claims (13)
1. the Method of printing of a heat printing device, it includes:
Provide the color range with pixel to be worth corresponding n bit value, wherein the color range value scope of this pixel is by 0 to 2
n-1;
According to the bit significance of target bit in this n bit value, determine pairing total time-write interval of this target bit; And
If this target bit is predetermined value,, drives the heating unit band of checking colors off and on and heat then in this target bit in the pairing time-write interval;
Wherein, pairing total time-write interval of this target bit is different from the pairing total time-write interval of another one in this n bit value.
2. the method for claim 1, it also includes:
Pairing total time-write interval of this target bit is divided into a plurality of printing period, and these a plurality of printing periods and other pairing printing period are interlaced, so that these a plurality of printing periods are discontinuous.
3. method as claimed in claim 2, wherein, these a plurality of printing periods have essentially identical time span.
4. method as claimed in claim 2 wherein, has at least a time span of printing the period to be different from the time span that other prints the period in these a plurality of printing periods.
5. the method for claim 1, wherein pairing total time-write interval of this target bit is essentially the importance twice of lower pairing total time-write interval of phase ortho position.
6. the method for claim 1, wherein described step that drives this heating unit off and on also includes:
Alternately enable and forbid this heating unit according to frequency signal.
7. heat printing device, it includes:
Control circuit, the color range that is used to provide with pixel is worth corresponding n bit value, and wherein the color range value scope of this pixel is by 0 to 2
n-1; And
Thermal printer head, it includes heating unit, and this thermal printer head can be according in this n bit value
The bit significance of target bit determines pairing total time-write interval of this target bit;
Wherein if this target bit is a predetermined value, then this thermal printer head can be in this target bit in the pairing time-write interval, drives this heating unit band of checking colors off and on and heats;
Wherein, pairing total time-write interval of this target bit is different from the pairing total time-write interval of another one in this n bit value.
8. heat printing device as claimed in claim 7, wherein, this thermal printer head can be divided into a plurality of printing period with pairing total time-write interval of this target bit, and these a plurality of printing periods and other pairing printing period are interlaced, so that these a plurality of printing periods are discontinuous.
9. heat printing device as claimed in claim 8, wherein, these a plurality of printing periods have essentially identical time span.
10. heat printing device as claimed in claim 8 wherein, has at least a time span of printing the period to be different from the time span that other prints the period in these a plurality of printing periods.
11. heat printing device as claimed in claim 7 wherein, pairing total time-write interval of this target bit, is essentially the importance twice of lower pairing total time-write interval of phase ortho position.
12. heat printing device as claimed in claim 7, wherein, this thermal printer head alternately enables according to frequency signal and forbids this heating unit.
13. heat printing device as claimed in claim 7, wherein this thermal printer head can be printed the period according to pairing this total time-write interval decision of this target bit, and if this target bit is this predetermined value, then this thermal printer head can be printed in the period at this, drives this heating unit off and on this colour band is heated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101359873A CN100548699C (en) | 2006-10-16 | 2006-10-16 | Heat printing device and Method of printing thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101359873A CN100548699C (en) | 2006-10-16 | 2006-10-16 | Heat printing device and Method of printing thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101164787A CN101164787A (en) | 2008-04-23 |
| CN100548699C true CN100548699C (en) | 2009-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101359873A Expired - Fee Related CN100548699C (en) | 2006-10-16 | 2006-10-16 | Heat printing device and Method of printing thereof |
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| CN (1) | CN100548699C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018143937A1 (en) * | 2017-01-31 | 2018-08-09 | Hewlett-Packard Development Company, L.P. | Fluid ejection die including nozzle identification |
| CN108773194B (en) * | 2018-05-04 | 2019-07-12 | 飞天诚信科技股份有限公司 | A kind of printer and the method for improving print speed |
| CN111923605B (en) * | 2018-12-29 | 2022-04-29 | 厦门汉印电子技术有限公司 | Printing method, printing device, printer and storage medium |
| CN111361294B (en) * | 2020-03-30 | 2021-08-06 | 厦门汉印电子技术有限公司 | Method and device for identifying resolution of printing head, printer and storage medium |
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| Publication number | Publication date |
|---|---|
| CN101164787A (en) | 2008-04-23 |
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Granted publication date: 20091014 Termination date: 20131016 |