CN1847007A - Heat printer printing head with temperature control function - Google Patents
Heat printer printing head with temperature control function Download PDFInfo
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- CN1847007A CN1847007A CN 200510065945 CN200510065945A CN1847007A CN 1847007 A CN1847007 A CN 1847007A CN 200510065945 CN200510065945 CN 200510065945 CN 200510065945 A CN200510065945 A CN 200510065945A CN 1847007 A CN1847007 A CN 1847007A
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- printer printing
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Abstract
The printing head of heat printer with temperature control function includes one printing head module with one first temperature sensor in the upper part for measuring the temperature of the printing head module, one heat sink over the printing head module with one heat sink module in the upper part and one second temperature sensor for measuring the temperature of the heat sink module, and one controller for regulating the printing head module heating mode based on the temperature of the printing head module and the temperature of the heat sink module.
Description
Technical field
The present invention relates to a kind of heat printer printing head, particularly relate to a kind of heat printer printing head with temperature control function.
Background technology
General thermal printer comprises linear heating element heater (or can be described as printing head component) array, in order to for example to utilize from being transferred to required color on one output medium on the pigment thin slice or opening the mode that color on the beginning output medium forms mechanism and come print data.Typical output medium belongs to the porous material that can receive the pigment transfer, or is coated with the scraps of paper that color forms chemical mechanism.In the time of below output medium passes through heating element heater, this heating element heater just can open the beginning to form required color on this output medium.Heating element heater is to open the beginning in the mode that its energy is provided, and when its energy was provided, the temperature of heating element heater can increase so that the color on the pigment thin slice can be transferred on the output medium or color forms mechanism and can open the beginning to form color on the output medium.Can be to the energy of heating element heater and change and provide along with the temperature of the deep or light or printhead of for example required color itself.
Because the temperature of heating element heater is for the repeatability of color and deep or light very significant effects arranged, in print procedure, be easy to generate heat history again, so temperature how accurately to learn heating element heater is to carry out the key of energy control just becoming thermal printer print quality.
And in present technology, the temperature that correctly learn heating element heater (printing head component) is very difficult, for example sees also Fig. 1, is No. 6819347 disclosed system of United States Patent (USP).Wherein just directly heating element heater 9a～9g is not carried out the measurement of temperature, but in indirect mode.It provides a kind of printhead temperature pattern, utilize the temperature of heating element heater context and before provided temperature that the historical data of printhead energy predicts heating element heater 9a～9g feedbacking control, and the temperature of context is to learn by the temperature sensor of being located on the radiator 31.
According to the above, the difficulty really that can find how correctly to measure temp of heating element and control, therefore how the thermal conductance that more quickly heating element heater is produced goes out, and heat can not be accumulated and the temperature control when printing to carry out heating element heater by suitable temperature survey just becomes and demands the problem that overcomes at present urgently.
Summary of the invention
In view of above problem, the present invention mainly provides a kind of heat printer printing head with temperature control function, avoid the heat history of heating element heater (printing head component) and radiator, more appropriate temperature measuring data is provided, the tonal distortion phenomenon improves print quality when printing with further improvement in order to carry out temp of heating element control.In addition, possible temperature in the time of learning more accurately that because of it heating element heater is printed, energy modulation efficient for heating element heater can gain to some extent, so can save the energy, moreover, after energize can be measured the accurate control of temperature more accurately according to heating element heater, heat dissipation capacity reduced, so its refrigerating module can dwindle and can further reach the effect of dwindling the total system volume.
Therefore, the disclosed a kind of heat printer printing head of the present invention comprises: printhead module; First temperature sensor is installed on the printhead module, measures the temperature of printhead module; Radiator is located at the printhead module top; Radiating module is located at the radiator top; Second temperature sensor is installed on the radiating module, measures the temperature of radiating module; And controller, in order to temperature, adjust the mode of heating of printhead module according to printhead module and radiating module.
Above-mentioned printhead module can comprise a plurality of heating element heaters, by controller control heating element heater printhead module is heated action.
Can install a plurality of temperature sensors on the above-mentioned radiating module, measure the temperature of radiating module.
On the other hand, the disclosed a kind of heat printer printing head with temperature control function of the present invention can comprise: printhead module; First temperature sensor is installed on the printhead module, measures the temperature of printhead module; Radiator connects printhead module; Radiating module is connected in radiator; A plurality of second temperature sensors are evenly distributed on the radiating module, measure the temperature of radiating module; And controller is adjusted the mode of heating of printhead module according to the temperature of printhead module and radiating module.
Also can comprise refrigerating module on the radiating module in above-mentioned each scheme, in order to quicken the radiating rate of radiating module, this refrigerating module for example is fan or has the cooling circuit that cooling agent flows through.
In addition, radiating module can be the step structure design with its radiating effect that gains, and temperature sensor can be located on the inclined-plane or plane of step structure.It can be adjusted to some extent according to the sensing effect.
Comprehensive the above, the temperature sensing radiating module that is provided in the temperature control system by heat printer printing head of the present invention, really can avoid the heat history of printhead and radiator, therefore the cooling effectiveness of temperature sensing radiating module and radiator can not reduce, the temperature measuring data that obtains is comparatively accurate, the temperature of printhead just can be feedback control more accurately, and then improves print quality.
Below in embodiment, be described in detail detailed features of the present invention and advantage, its content is enough to make any correlation technique person of being familiar with to understand technology contents of the present invention and implements according to this, and according to the disclosed content of this specification, claim and graphic, any correlation technique person of being familiar with can understand purpose and the advantage that the present invention is correlated with easily.
Description of drawings
Fig. 1 is the disclosed thermal printer of No. the 6819347th, existing United States Patent (USP) system;
Fig. 2 A and Fig. 2 B are respectively the stereogram and the side view of a preferred embodiment of heat printer printing head temperature control system of the present invention; And
Fig. 3 is the configuration diagram of heat printer printing head temperature control system of the present invention.
The specific embodiment
For making purpose of the present invention, structure, feature and function thereof there are further understanding, cooperate embodiment to be described in detail as follows now.More than about the explanation of the explanation of content of the present invention and following embodiment be in order to demonstration with explain principle of the present invention, and provide claim of the present invention further to explain.
See also Fig. 2 A and Fig. 2 B, it is respectively the stereogram and the side view of a preferred embodiment that the present invention has the heat printer printing head of temperature control function.
This heat printer printing head mainly comprises printhead module 13, radiator (heat sink) 17 and radiating module 19.
Printhead module 13 comprises ceramic substrate 21, glassy layer (glaze layer) 23, electrode 25a, 25b, heating element heater 27 and protective layer 29.
Ceramic substrate 21 tops are connected with radiator 17, and the below is provided with glassy layer 23.
The electrode 25a that below glassy layer 23, is provided with a plurality of heating element heaters 27 and heating element heater 27 energy are provided, 25b, these a plurality of heating element heaters 27 can constitute a linear array.Wherein the temperature of general heating element heater is to learn by first temperature sensor 33 (being shown among Fig. 3) of being located at radiator 17.
Should will be understood that though only show a heating element heater in the drawings, in fact it can comprise up to a hundred to thousands of heating element heaters, arranges closely in unit length.
As the above, electrode 25a, 25b can provide energy to heating element heater 27 to be heated to specified temp so that pigment is transferred on the output medium, and the heat that heating element heater 27 produces can be uploaded to radiator 17 through glassy layer 23, ceramic substrate 21, and this moment, the temperature of heating element heater 27 can directly return to controller 31 (being shown among Fig. 3) certain specified temp is done the power adjustment of heating element heater 27 by first temperature sensor 33 (being shown among Fig. 3) on it.
When said system continues to print, heating element heater 27 can constantly produce heat, if radiator 17 heats have little time to shed when continuing accumulation, just can have influence on the task performance (because of printhead has certain operating temperature range) of whole printhead module 13 and measure temperature, so meeting and then influence the temperature controlled accuracy of printhead module 13 back couplings.
Therefore the present invention adds a radiating module 19 on this radiator 17, single in order to fast the thermal conductance on this radiator being gone out, and the second temperature sensor 15a on the radiating module 19,15b, 15c can carry out the temperature survey of radiating module 19 itself, in order to adjust the mode of heating of this printhead module.This radiating module 19 is provided with the second temperature sensor 15a more than, 15b, 15c, in order to measure the temperature of radiating module 19, measured temperature can be back to controller 31 (being shown among Fig. 3), this printhead module 13, heating element heater 27 or this radiating module 19 are carried out itself temperature control, adjust mode of heating with the temperature computing that on first temperature sensor 33 (being shown among Fig. 3), obtains.
Carrying out temperature controlled method has manyly, for example establishes a refrigerating module (figure show) on radiating module 19, and this refrigerating module can be a fan or has cooling circuit that cooling agent flows through etc.
By combining of this radiating module 19 and radiator 17, the heat that heating element heater 27 produces, just can derive by radiating module 19 again by radiator 17, therefore radiator 17 can not reduce because of heat history makes radiating effect, and by the temperature survey to radiating module 19, can carry out temperature control to radiating module 19, therefore radiating module 19 does not have the problem of heat history yet, so by the present invention, the heat that heating element heater 27 produces all can shed in real time, the measured temperature of first temperature sensor 33 (being shown among Fig. 3) just can be comparatively accurate, measuring temperature more accurately under the situation, and the temperature of printhead module 13 or heating element heater 27 just can be controlled more accurately.
Furthermore, by the second temperature sensor 15a, 15b, the temperature that 15c obtains is passed through the computing of controller 31 (being shown among Fig. 3) with the temperature that first temperature sensor 33 (being shown among Fig. 3) obtains, can draw the control power of suitable heating element heater 27, the temperature of printhead control when printing, and then print quality can be protected.
On the other hand, this radiating module 19 can be the step structure design with its radiating effect that gains, and the second temperature sensor 15a, 15b, 15c can be located on the inclined-plane or plane of this step structure.It can be adjusted to some extent according to the sensing effect.
See also Fig. 3, it has the configuration diagram of the heat printer printing head of temperature control function for the present invention.
As shown in the figure, the heat that heating element heater 27 produces reaches radiator 17, and the heat of radiator 17 then can reach radiating module 19.And the temperature data that obtains from second temperature sensor 15 of radiating module 19, with the temperature data that obtains from first temperature sensor 33, can provide together to controller 31 and carry out computing, to draw a back coupling control signal, this back coupling control signal can be supplied with the power of heating element heaters 27 or make it keep the power of specified temp in order to control electrode 25.
Comprehensive the above, just can find by the present invention, just can avoid in the printhead module heating element heater with and the top radiator have the phenomenon of heat history to produce, the temperature of this printhead module or heating element heater just can be more measured and be controlled, furthermore, because of having second temperature sensor on the radiating module of the present invention, can provide temperature data to carry out the temperature control of self, so needn't worry radiating module or the radiator that combines with it overheated phenomenon is arranged, in other words, can not reduce its cooling effectiveness.
Therefore, by the present invention, possible temperature during printhead prints can be learnt more accurately, so the energy modulation efficient of printhead is more accurately adjusted, so can save the energy, furthermore, can measure temperature more accurately according to printhead because of energize and accurately control, heat dissipation capacity can reduce, and can further reach the purpose of total system volume-diminished so its refrigerating module can dwindle.
Though disclosed the present invention in conjunction with above embodiment, yet it is not in order to limit the present invention.Without departing from the spirit and scope of the present invention, institute changes and retouching for it, all belongs to scope of patent protection of the present invention.Please refer to appending claims about the protection domain that the present invention defined.
Claims (10)
1. heat printer printing head comprises:
One prints head module;
One first temperature sensor is installed on this printhead module, measures the temperature of this printhead module;
One radiator is located at this printhead module top;
One radiating module is located at this radiator top;
One second temperature sensor is installed on this radiating module, measures the temperature of this radiating module; And
One controller in order to the temperature according to this printhead module and this radiating module, is adjusted the mode of heating of this printhead module.
2. heat printer printing head as claimed in claim 1, wherein this printhead module comprises a plurality of heating element heaters, controls this heating element heater by this controller this printhead module is heated action.
3. heat printer printing head as claimed in claim 1 is wherein installed a plurality of these second temperature sensors, to measure the temperature of this radiating module on this radiating module.
4. heat printer printing head as claimed in claim 1 wherein also comprises a refrigerating module on this radiating module.
5. heat printer printing head as claimed in claim 4, wherein this refrigerating module is a fan.
6. heat printer printing head as claimed in claim 4, wherein this refrigerating module is one to have the cooling circuit that cooling agent flows through.
7. heat printer printing head as claimed in claim 1, wherein this radiating module is a step structure.
8. heat printer printing head as claimed in claim 7, wherein this second temperature sensor is located at an inclined-plane of this step structure.
9. heat printer printing head as claimed in claim 7, wherein this second temperature sensor is located at a plane of this step structure.
10. heat printer printing head comprises:
One prints head module;
One first temperature sensor is installed on this printhead module, measures the temperature of this printhead module;
One radiator connects this printhead module;
One radiating module is connected in this radiator;
A plurality of second temperature sensors are evenly distributed on this radiating module, measure the temperature of this radiating module; And
One controller connects this first temperature sensor and this second temperature sensor, according to the temperature of this printhead module and this radiating module, adjusts the mode of heating of this printhead module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100659452A CN100411875C (en) | 2005-04-15 | 2005-04-15 | Heat printer printing head with temperature control function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100659452A CN100411875C (en) | 2005-04-15 | 2005-04-15 | Heat printer printing head with temperature control function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1847007A true CN1847007A (en) | 2006-10-18 |
| CN100411875C CN100411875C (en) | 2008-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100659452A Expired - Fee Related CN100411875C (en) | 2005-04-15 | 2005-04-15 | Heat printer printing head with temperature control function |
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| Country | Link |
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| CN (1) | CN100411875C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102886991A (en) * | 2012-10-24 | 2013-01-23 | 北京雅昌彩色印刷有限公司 | Flatbed printer heating device capable of realizing normal paper proofing |
| CN103921559A (en) * | 2013-01-10 | 2014-07-16 | 东芝泰格有限公司 | Thermal printer device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5986684A (en) * | 1992-12-08 | 1999-11-16 | Ricoh Company, Ltd. | Thermal printing system having function for preventing over heating of thermal head |
| DE69525867T2 (en) * | 1994-10-03 | 2002-11-21 | Rohm Co | Thermal printhead |
| DE29504576U1 (en) * | 1995-03-07 | 1995-05-11 | Francotyp Postalia Gmbh | Print head thermal control |
| CN1076287C (en) * | 1995-08-09 | 2001-12-19 | 罗姆股份有限公司 | Thermal print head |
-
2005
- 2005-04-15 CN CNB2005100659452A patent/CN100411875C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102886991A (en) * | 2012-10-24 | 2013-01-23 | 北京雅昌彩色印刷有限公司 | Flatbed printer heating device capable of realizing normal paper proofing |
| CN102886991B (en) * | 2012-10-24 | 2015-07-08 | 北京雅昌艺术印刷有限公司 | Flatbed printer heating device capable of realizing normal paper proofing |
| CN103921559A (en) * | 2013-01-10 | 2014-07-16 | 东芝泰格有限公司 | Thermal printer device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100411875C (en) | 2008-08-20 |
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Granted publication date: 20080820 Termination date: 20130415 |