CN112109447A - Working method of printer nozzle - Google Patents
Working method of printer nozzle Download PDFInfo
- Publication number
- CN112109447A CN112109447A CN202010874815.8A CN202010874815A CN112109447A CN 112109447 A CN112109447 A CN 112109447A CN 202010874815 A CN202010874815 A CN 202010874815A CN 112109447 A CN112109447 A CN 112109447A
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- CN
- China
- Prior art keywords
- temperature
- voltage
- heating device
- spray head
- working
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/07—Ink jet characterised by jet control
- B41J2/11—Ink jet characterised by jet control for ink spray
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/07—Ink jet characterised by jet control
- B41J2/072—Ink jet characterised by jet control by thermal compensation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/07—Ink jet characterised by jet control
- B41J2/125—Sensors, e.g. deflection sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14016—Structure of bubble jet print heads
- B41J2/1408—Structure dealing with thermal variations, e.g. cooling device, thermal coefficients of materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14016—Structure of bubble jet print heads
- B41J2/14088—Structure of heating means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14016—Structure of bubble jet print heads
- B41J2/14153—Structures including a sensor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
- B41J29/393—Devices for controlling or analysing the entire machine ; Controlling or analysing mechanical parameters involving printing of test patterns
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Ink Jet (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Abstract
The invention relates to a working method of a printer nozzle, which detects the temperature T of the nozzle in real time, and reduces the working voltage of a heating device for heating the nozzle when the temperature T of the nozzle reaches a high temperature threshold Tmax which realizes ink jet and does not reach the set temperature. According to the working method of the printer nozzle, the working voltage of the heating device for heating the nozzle can be reduced when the temperature of the nozzle reaches the high-temperature threshold value which is set for realizing ink jet and does not reach the high-temperature threshold value, so that the heating speed of the nozzle can be effectively reduced, the continuous printing time of the nozzle is prolonged, the requirement of long printing time on uninterrupted printing work is met, and the user experience is better.
Description
Technical Field
The invention relates to a working method of a printer nozzle.
Background
Among the inkjet printing technique, need heat the output that just can effectively realize the ink after the ink reaches good printing effect, have directly to heat the ink horn among the prior art, then will heat the ink output after print to the shower nozzle, but the ink after the heating can lead to calorific loss from the ink horn through china ink pipe flow to shower nozzle in-process, influences the printing effect to there is the possibility that the ink blockked up the shower nozzle yet. Therefore, in the prior art, the nozzle is directly heated by the heating device, so that the temperature of the ink rises instantly after the ink enters the high-temperature nozzle, bubbles are generated, and the output printing of ink drops is realized. But the shower nozzle can be damaged if the shower nozzle temperature is too high, consequently print the in-process and set up a high temperature threshold value usually, stop the heating to the shower nozzle after the temperature of shower nozzle reaches this high temperature threshold value, stop the printing work simultaneously to realize the cooling of shower nozzle, wait after the shower nozzle temperature drops to the set temperature, control heating device again and heat the shower nozzle, then print the work. However, when the head is heated, the operating voltage output to the heating device is usually a fixed value, and the heating device continuously heats the head, so that the time for the temperature of the head to reach the set temperature is short, and therefore, the time for which the printing operation can be continued is limited, and the continuous printing requirement for a long time cannot be met.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a working method of a printer nozzle capable of effectively prolonging the continuous printing time of the nozzle in view of the prior art.
The technical scheme adopted by the invention for solving the problems is as follows: the working method of the printer nozzle is characterized in that: and detecting the temperature T of the spray head in real time, and reducing the working voltage of a heating device for heating the spray head when the temperature T of the spray head reaches a set high-temperature threshold Tmax for realizing ink jet and does not reach the set high-temperature threshold Tmax.
As a refinement, at least two different temperature thresholds T which are smaller than the high temperature threshold Tmax are provided1,T2,……Ti,……TN]Wherein i and N are positive integers respectively, i is more than or equal to 1 and less than or equal to N, N is more than or equal to 2, and when T is equal to TiAnd when the voltage difference is larger than the preset value, the working voltage of the heating device is reduced according to the preset voltage difference.
Preferably, the printer head working system comprises
The heating device is arranged on the spray head and used for heating the spray head;
the temperature detection device is arranged on the spray head and used for detecting the temperature of the spray head;
the A/D conversion circuit is electrically connected with the temperature detection device and is used for carrying out A/D conversion on a detection signal of the temperature detection device;
the controller is electrically connected with the A/D conversion circuit and used for acquiring a temperature change signal and outputting a voltage regulation control signal according to the temperature change condition;
the voltage regulation module is electrically connected with the controller, receives a voltage regulation control signal of the controller and controls voltage regulation;
and the power supply generating circuit is respectively electrically connected with the voltage regulating module and the heating device and outputs regulated voltage to the heating device according to the control of the voltage regulating module.
Preferably, the method of reducing the supply voltage of the heating device is: the temperature detection device is a thermistor, the resistance value of the thermistor changes based on the temperature change of the spray head, the changed resistance value of the thermistor is amplified in the A/D conversion circuit and outputs a changed voltage value to the controller, the controller judges whether the working voltage of the heating device is regulated or not according to the obtained output voltage value of the A/D conversion circuit, if the working voltage of the heating device needs to be regulated, a control signal for reducing the working voltage of the heating device is output, the voltage regulation module changes the resistance value of the voltage regulation module according to the control signal of the controller and outputs the changed resistance value to the power supply generation circuit, and the power supply generation circuit correspondingly outputs the regulated working voltage of the heating device.
In order to ensure that the service life of the spray head is prolonged, when the temperature T of the spray head is Tmax, the heating device is controlled to stop heating, and meanwhile, the printing work of the spray head is controlled to stop.
As an improvement, after stopping the printing work of the spray head, the temperature T of the spray head is detected in real time, and when the T is reduced to the set starting work temperature TQThen, the heating device is controlled according to the initial working voltage U0The work is carried out, the printing work is carried out again,the operation of adjusting the operating voltage of the heating device is cyclically performed until the user turns off the printer.
Compared with the prior art, the invention has the advantages that: according to the working method of the printer nozzle, the working voltage of the heating device for heating the nozzle can be reduced when the temperature of the nozzle reaches the high-temperature threshold value which is set for realizing ink jet and does not reach the high-temperature threshold value, so that the heating speed of the nozzle can be effectively reduced, the continuous printing time of the nozzle is prolonged, the requirement of long printing time on uninterrupted printing work is met, and the user experience is better.
Drawings
FIG. 1 is a graph showing a comparison between a method of operating a head of a printer according to the prior art and a method of operating a head of a printer according to an embodiment of the present invention with respect to a relationship between a head temperature T and a continuous operation time T of the head.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
The working method of the printer head in this embodiment is completed by a head working system, and the printer head working system includes:
the heating device is arranged on the spray head and used for heating the spray head; in order to ensure the uniformity of heating the spray head, the heating device can be provided with a plurality of heating blocks arranged in an array state, and the distribution positions of the heating blocks are set according to the specific ink jet requirements;
the temperature detection device is arranged on the spray head and used for detecting the temperature of the spray head; the temperature detection device in the embodiment adopts the thermistor, the resistance value of the thermistor changes along with the change of the temperature, and the temperature can be calculated according to the change of the resistance value;
the A/D conversion circuit is electrically connected with the temperature detection device and is used for carrying out A/D conversion on a detection signal of the temperature detection device; the A/D conversion circuit is provided with an operational amplifier, the resistance of one output end of the operational amplifier can change along with the change of the resistance of the temperature detection device, different voltage signals can be correspondingly output, and the conversion processing from the resistance to the voltage is also realized;
the controller is electrically connected with the A/D conversion circuit and used for acquiring a temperature change signal and outputting a voltage regulation control signal according to the temperature change condition; the controller can be a single chip microcomputer in the prior art;
the voltage regulation module is electrically connected with the controller, receives a voltage regulation control signal of the controller and controls voltage regulation; in this embodiment, the voltage adjusting module may adjust the resistance value of the resistor acting on the power generating circuit according to the voltage adjusting control signal of the controller, and may adjust the resistance value of the resistor acting on the power generating circuit to be different according to different voltage adjusting control signals of the controller;
and the power supply generating circuit is respectively electrically connected with the voltage regulating module and the heating device and outputs regulated voltage to the heating device according to the control of the voltage regulating module.
The working method of the printer nozzle comprises the following steps: after the printer is started, controlling a heating device on the spray head to work, further heating the spray head, detecting the temperature T of the spray head in real time, and reducing the working voltage of the heating device for heating the spray head when the temperature T of the spray head reaches a set high-temperature threshold Tmax for realizing ink jet and does not reach the set high-temperature threshold Tmax. When the temperature T of shower nozzle ═ Tmax, control heating device stop heating, the print job of control stop shower nozzle simultaneously, so effectively realized the protection to the shower nozzle, prolonged the life of shower nozzle. After the print operation of the head is stopped, the temperature T of the head is detected, and when T drops to a set start operation temperature TQ, the heating device is controlled to operate according to an initial operation voltage U0, the print operation is resumed, and the operation of adjusting the operation voltage of the heating device is cyclically performed until the user turns off the printer.
At least two different temperature thresholds T less than the high temperature threshold Tmax can be set according to specific conditions1,T2,……Ti,……TN]Wherein i and N are positive integers respectively, i is more than or equal to 1 and less than or equal to N, N is more than or equal to 2, and when T is equal to TiAnd when the voltage difference is larger than the preset value, the working voltage of the heating device is reduced according to the preset voltage difference. In the embodiment, two temperature thresholds T1 and T2 are arranged, T1 and T2 are both positioned between the temperature of the spray head for realizing ink jet and the high temperature threshold Tmax, and T1 < (R) <)T2. In this embodiment, T1 ═ Temp1, T2 ═ Temp2, and Tmax ═ Temp 3. When T is T1, the current working voltage of the heating device is controlled to be reduced, so that the temperature rising speed of the spray head is reduced, and when T is T2, the working voltage of the heating device is controlled to be further reduced, so that the temperature rising speed of the spray head is further reduced. As shown in fig. 1, a relation line a is a relation line relating to a spray head temperature T-a spray head continuous working time T formed by a working method of a printer spray head in the prior art, and a relation line B is a relation line relating to a spray head temperature T-a spray head continuous working time T formed by a working method of a printer spray head in an embodiment of the present invention.
Claims (6)
1. A working method of a printer nozzle is characterized in that: and detecting the temperature T of the spray head in real time, and reducing the working voltage of a heating device for heating the spray head when the temperature T of the spray head reaches a set high-temperature threshold Tmax for realizing ink jet and does not reach the set high-temperature threshold Tmax.
2. The method of operating a printer head as claimed in claim 1, wherein: setting at least two different temperature thresholds T less than a high temperature threshold Tmax1,T2,……Ti,……TN]Wherein i and N are positive integers respectively, i is more than or equal to 1 and less than or equal to N, N is more than or equal to 2, and when T is equal to TiAnd when the voltage difference is larger than the preset value, the working voltage of the heating device is reduced according to the preset voltage difference.
3. The method of operating a printer head according to claim 1 or 2, characterized in that: is finished by a printer nozzle working system which comprises
The heating device is arranged on the spray head and used for heating the spray head;
the temperature detection device is arranged on the spray head and used for detecting the temperature of the spray head;
the A/D conversion circuit is electrically connected with the temperature detection device and is used for carrying out A/D conversion on a detection signal of the temperature detection device;
the controller is electrically connected with the A/D conversion circuit and used for acquiring a temperature change signal and outputting a voltage regulation control signal according to the temperature change condition;
the voltage regulation module is electrically connected with the controller, receives a voltage regulation control signal of the controller and controls voltage regulation;
and the power supply generating circuit is respectively electrically connected with the voltage regulating module and the heating device and outputs regulated voltage to the heating device according to the control of the voltage regulating module.
4. The method of operating a printer head as claimed in claim 3, wherein: the method for reducing the power supply voltage of the heating device comprises the following steps: the temperature detection device is a thermistor, the resistance value of the thermistor changes based on the temperature change of the spray head, the changed resistance value of the thermistor is amplified in the A/D conversion circuit and outputs a changed voltage value to the controller, the controller judges whether the working voltage of the heating device is regulated or not according to the obtained output voltage value of the A/D conversion circuit, if the working voltage of the heating device needs to be regulated, a control signal for reducing the working voltage of the heating device is output, the voltage regulation module changes the resistance value of the voltage regulation module according to the control signal of the controller and outputs the changed resistance value to the power supply generation circuit, and the power supply generation circuit correspondingly outputs the regulated working voltage of the heating device.
5. The method of operating a printer head according to any one of claims 1 to 2, wherein: and when the temperature T of the spray head is Tmax, controlling the heating device to stop heating, and simultaneously controlling the spray head to stop printing.
6. The method of operating a printer head as claimed in claim 5, wherein: after stopping the printing work of the spray head, detecting the temperature T of the spray head in real time, and when the temperature T is reduced to the set starting working temperature TQThen, the heating device is controlled according to the initial working voltage U0To carry out work and resumeAnd printing, and circularly adjusting the working voltage of the heating device until the user turns off the printer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010874815.8A CN112109447A (en) | 2020-08-27 | 2020-08-27 | Working method of printer nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010874815.8A CN112109447A (en) | 2020-08-27 | 2020-08-27 | Working method of printer nozzle |
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| Publication Number | Publication Date |
|---|---|
| CN112109447A true CN112109447A (en) | 2020-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010874815.8A Pending CN112109447A (en) | 2020-08-27 | 2020-08-27 | Working method of printer nozzle |
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| CN (1) | CN112109447A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115071282A (en) * | 2022-07-21 | 2022-09-20 | 上海商米科技集团股份有限公司 | Motor speed control method and device of printer and printer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5619767A (en) * | 1979-07-27 | 1981-02-24 | Ricoh Co Ltd | Ink-jet recording device |
| US20030222933A1 (en) * | 2002-05-30 | 2003-12-04 | Samsung Electronics Co., Ltd. | Device for preventing printer header from overheating |
| CN1799843A (en) * | 2004-12-31 | 2006-07-12 | 财团法人工业技术研究院 | Ink-jet head temperature control method and apparatus thereof |
| CN103619601A (en) * | 2011-07-01 | 2014-03-05 | 惠普发展公司，有限责任合伙企业 | Method and apparatus to regulate temperature of printheads |
| CN104085189A (en) * | 2014-07-08 | 2014-10-08 | 北京美科艺数码科技发展有限公司 | Heating protective circuit |
| CN107244146A (en) * | 2017-05-31 | 2017-10-13 | 青岛海信智能商用系统股份有限公司 | Thermal printing head temperature-control circuit and thermal printer |
| CN208158912U (en) * | 2016-12-31 | 2018-11-27 | 河南筑诚电子科技有限公司 | A kind of 3D printer injector heating arrangement |
-
2020
- 2020-08-27 CN CN202010874815.8A patent/CN112109447A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5619767A (en) * | 1979-07-27 | 1981-02-24 | Ricoh Co Ltd | Ink-jet recording device |
| US20030222933A1 (en) * | 2002-05-30 | 2003-12-04 | Samsung Electronics Co., Ltd. | Device for preventing printer header from overheating |
| CN1799843A (en) * | 2004-12-31 | 2006-07-12 | 财团法人工业技术研究院 | Ink-jet head temperature control method and apparatus thereof |
| CN103619601A (en) * | 2011-07-01 | 2014-03-05 | 惠普发展公司，有限责任合伙企业 | Method and apparatus to regulate temperature of printheads |
| CN104085189A (en) * | 2014-07-08 | 2014-10-08 | 北京美科艺数码科技发展有限公司 | Heating protective circuit |
| CN208158912U (en) * | 2016-12-31 | 2018-11-27 | 河南筑诚电子科技有限公司 | A kind of 3D printer injector heating arrangement |
| CN107244146A (en) * | 2017-05-31 | 2017-10-13 | 青岛海信智能商用系统股份有限公司 | Thermal printing head temperature-control circuit and thermal printer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115071282A (en) * | 2022-07-21 | 2022-09-20 | 上海商米科技集团股份有限公司 | Motor speed control method and device of printer and printer |
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Application publication date: 20201222 |
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