CN205523068U - Ink jet printer shower nozzle fault detection device and ink jet printer - Google Patents
Ink jet printer shower nozzle fault detection device and ink jet printer Download PDFInfo
- Publication number
- CN205523068U CN205523068U CN201620010431.0U CN201620010431U CN205523068U CN 205523068 U CN205523068 U CN 205523068U CN 201620010431 U CN201620010431 U CN 201620010431U CN 205523068 U CN205523068 U CN 205523068U
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- jet printer
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- shower nozzle
- ink jet
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- 238000001514 detection method Methods 0.000 title claims abstract description 32
- 238000012360 testing method Methods 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000007639 printing Methods 0.000 abstract description 6
- 239000000919 ceramic Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 230000002950 deficient Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002305 electric material Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- B41J2/135—Nozzles
-
- 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
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
Landscapes
- Ink Jet (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Abstract
The utility model provides an ink jet printer shower nozzle fault detection device and ink jet printer, the utility model relates to an ink jet printer shower nozzle fault detection device and the ink jet printer who adopts this detection device. The device includes detection circuitry and control system, detection circuitry locates between ink jet printer's the electrode, is responsible for the electrical characteristics signal between measuring electrode and exports to control system, control system judges according to the change of electrical characteristics signal between the electrode whether the shower nozzle breaks down. Control system is judging that the shower nozzle breaks down the back, and control ink jet printer carries out the operation of reply trouble, the trouble includes: the nozzle blocks up, nozzle intake air, the operation of reply trouble includes: shut down and wash, remedy the printing, send out the police dispatch newspaper, improve ink supply system pressure. The utility model discloses can effectively detect and solve unusual that the nozzle appears, reduce the unusual loss that produces of nozzle, improve production efficiency.
Description
Technical field
This utility model belongs to inkjet printer technologies field, is specifically related to a kind of inkjet printer head failure detector and uses the ink-jet printer of this detection device.
Background technology
Existing inkjet printer head device is as it is shown in figure 1, be made up of driving chip, piezoelectric ceramics (cavity), electrode, shower nozzle (nozzle plate) and covering plate.Driving chip (driving IC) produces and controls waveform, receives on the electrode on piezoelectric ceramics surface so that piezoelectric ceramics produces deformation, produces squeezing effect, by the ink compression injection in ceramic cavity, ejected by nozzle plate.In this device, shower nozzle uses driving chip to control, it would be desirable to high-voltage signal (according to printing content) provide on piezoelectric ceramics or piezoelectric, produce deformation, ink droplet sprayed, system controls the signal of different spray nozzles, will obtain different printing curves.
As in figure 2 it is shown, existing ink-jet printer is by drive circuit output drive signal, controls piezoelectric and produce corresponding deformation, ink droplet is ejected, choose whether injection and eject position according to the difference of image, produce picture.In industrial processes, if spraying abnormal, will result in loss.Than as it is shown on figure 3, due to piezoelectric Deformation Anomalies (as shape-changing material damages), cause suction air, or ink jam, the ink-jet caused is abnormal, can cause print fault.Even if whole shower nozzle only one of which nozzle occurs abnormal, whole picture will be impacted, and cause picture to scrap, produce loss.Simultaneously because cannot print continuously, production efficiency is caused to decline.
Utility model content
This utility model is for the problems referred to above, it is provided that a kind of inkjet printer head failure detector and the ink-jet printer of this detection device of employing, it is possible to the exception/fault that effectively detection and solution shower nozzle occur, minimizing loss also improves production efficiency.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of inkjet printer head failure detector, including testing circuit and control system；Described testing circuit is located between the electrode of ink-jet printer, is responsible for measuring interelectrode electrical characteristics signal and exporting to described control system；According to the change of electrical characteristics signal between electrode, described control system judges whether shower nozzle breaks down.
Further, described control system, after judging that shower nozzle breaks down, controls ink-jet printer and performs the operation of reply fault.
Further, described fault includes: spray nozzle clogging, nozzle suck air；The operation of described reply fault includes: stop cleaning, remedy printing, send alarm, improve ink feeding system pressure.
Further, described electrical characteristics signal is the capacitance of the shape-changing material of ink-jet printer, or drive waveforms, or the current value during driving.
Further, described testing circuit is integrated in the driving chip of ink-jet printer, or is arranged on circuit board.
Further, between each two electrode of ink-jet printer, described testing circuit it is respectively provided with；Or each electrode uses a testing circuit and multiple selection switch, uses the mode of multiplexing and poll to realize the measurement of electrical characteristics signal between each electrode.
Further, when shower nozzle moves to edge, the idle print time utilizing and driving motor deceleration, shut down and reversely accelerate carries out faulty nozzle detection.
A kind of ink-jet printer, comprises above-mentioned inkjet printer head failure detector.
Inkjet printer head failure detector of the present utility model, it is internally integrated Multi-path electricity characteristic tester at control chip, the nozzle that can will appear from problem (as entered air, blocking and hardware damage) detects, and feeds back to control system simultaneously.Electrical characteristics include the current value etc. during piezoelectric or the capacitance of shape-changing material, drive waveforms and driving, but are not limited to these electrical characteristics, and any characteristic that can detect may be used to detection.This utility model can effectively detect and solve the exception that nozzle occurs, reduces the loss that nozzle produces, it is possible to increase production efficiency.It addition, this utility model can be also used for the self-inspection of shower nozzle, it is possible to detect when shower nozzle dispatches from the factory whether be non-defective unit, accelerate detection speed and reduce testing cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing ink-jet printer.
Fig. 2 is that existing ink-jet printer drives signal and ink droplet injection schematic diagram.
Fig. 3 is the faulty nozzle schematic diagram of existing ink-jet printer.
Fig. 4 is the schematic diagram that this utility model increases testing circuit in inkjet printing drive circuit.
Fig. 5 is testing circuit of the present utility model and the schematic diagram selecting switch.
Fig. 6 is the schematic diagram of capacitive detection circuit of the present utility model.
Fig. 7 is the schematic diagram of current detection circuit of the present utility model.
Detailed description of the invention
Understandable for enabling above-mentioned purpose of the present utility model, feature and advantage to become apparent from, below by specific embodiments and the drawings, this utility model is described further.
The shower nozzle of existing ink-jet printer (see Fig. 1, Fig. 2) uses driving chip to control, it would be desirable to high-voltage signal provide on piezoelectric ceramics or piezoelectric, produce deformation, ink droplet sprayed；System controls the signal of different spray nozzles, will obtain different printing curves.If owing to nozzle enters air, or due to reasons such as piezoelectric ceramics exceptions, cause ink droplet can not spray (see Fig. 3) smoothly, even if whole shower nozzle only one of which nozzle occurs abnormal, also whole picture will be impacted, and cause picture to scrap, produce loss.Simultaneously because cannot print continuously, production efficiency is caused to decline.
For the disconnected ink caused due to air resorption at nozzle, or because hardware fault is (as shape-changing material damages, ink dried blocking etc.), the change of electrical characteristics between two electrodes, the driving chip of this utility model design can be caused, the change of these electrical characteristics can be gathered, and feeding back to control system, control system, according to different electrical characteristics, finds some or certain some nozzles, can be by changing the disappearance controlling to avoid the occurrence of picture, it is to avoid loss.As it is shown in figure 1, injector electrode is a row, there is 128 or 256 even 2014 tunnels, between two adjacent nozzles, deformation can be produced, ink is extruded.And between every two path electrodes, will have specific electrical characteristics, such as capacitance.Therefore detect the electrical characteristics between adjacent two electrodes, can be used as examination criteria.
Inkjet printer head failure detector of the present utility model is as shown in Figure 4, in the driving circuit, between each two electrode, add testing circuit, testing circuit measures two interelectrode electrical characteristics signals, include but not limited to the signal characterizing shower nozzle state that the current value etc. during capacitance, drive waveforms, driving can be measured, and then judge the state in shower nozzle (nozzle, ink chamber etc.).
Above-mentioned testing circuit is integrated in driving chip, or realizes on circuit boards.Testing circuit can often between two-way (between each two electrode) do one, the quantity so needed is a lot, it would however also be possible to employ the mode of multiplexing, uses the mode of poll to realize, as it is shown in figure 5, use a testing circuit and multiple selection switch to realize.Testing circuit output signal, be converted to the signal such as analog voltage or electric current, or throughput turns to digital signal, carry out judging and analyzing for master control system (or claiming control system), and take corresponding countermeasure, include but not limited to drive ink feeding system to squeeze ink, change driving voltage and control amount out of ink and blotting power, avoid air to enter, or strengthen ink delivery pressure or send alarm etc., to avoid processing the loss brought not in time, human cost will be reduced and improve yield.Specifically, change the mode controlled and include: (1) shuts down, enter nozzle cleaning program.(2) remedying printing, for the nozzle that cannot dredge, location is also individually remedied the nozzle gone wrong, is compensated picture lack part by other normal nozzles.(3) shutdown sends alarm, and human intervention also solves problem.
Above-mentioned electrical characteristics include that piezoelectric or the capacitance of shape-changing material, drive waveforms are (after breaking down, due to electrical property change, cause drive waveforms also to produce corresponding change) and driving during current value etc., but being not limited to these electrical characteristics, any characteristic that can detect may be used to detection.Provide below two kinds of detection modes:
1) detection mode 1: detection two interelectrode capacitances, the capacitance of different conditions is different.By the change of capacitance, the state of shower nozzle can be obtained.
After resulting in blockage, suck air or ink change, two interelectrode capacitances therefore can be caused to change, therefore introduce capacitive detection circuit.8bit precision, 128 way switch can be used to control, each shower nozzle of cycle detection.Owing to detection influences whether print state in course of injection, therefore move to edge when shower nozzle, utilize and drive motor to slow down and shut down and idle print time of reversely accelerating is detected.1 second free time, detect speed 128Hz.The control system change by capacitance, can detect nozzle problem, can provide just for problem nozzle and drive signal, individually be carried out, it is to avoid waste ink droplet.
Fig. 6 show a kind of capacitive detection circuit, utilizes the time delay feature of electric capacity and resistance, when capacitance variations, time delay also changes, and drives signal by providing, it is judged that time delay and the time difference of driving signal, can obtain the change of time delay, thus judge capacitance whether with ideal value deviation.
2) detection mode 2: detection drives signal to electrode drive current, and shower nozzle state is different is different electric currents by reaction, can obtain the state of shower nozzle.
After resulting in blockage, due to change or the characteristic changing of piezoelectric ceramics of electric capacity, actuator drive current can change.By detecting the electric current of driver, condition of nozzles information can be obtained.
Above practical circuit is only for explanation, and this utility model is not limited to this several ways.Being illustrated in figure 7 a kind of current detection circuit, drive circuit passes through line driving pressure electric material, drives pipe to do mirror image in electric current, is sent in master control system, and electric current is detected by master control system, notes abnormalities, and processes.General driving tube current is the biggest, it is likely to be breached hundreds of milliampere, current detection circuit typically can not support the biggest electric current, therefore can be by (as shown in n:1 in figure) after driving tube current scale smaller, re-send in master control system, so testing circuit easily realizes, it is achieved cost is relatively low.
Detection scheme of the present utility model can be tabulated as follows, includes but not limited to content listed in following table.
This utility model can be additionally used in shower nozzle self-inspection, and whether can detect that shower nozzle dispatches from the factory is non-defective unit, accelerates detection speed and reduces testing cost.When dispatching from the factory, utilize detection device of the present utility model and detection method, the electrical characteristics of nozzle piezoelectric ceramics and electrode can be checked, it is judged that whether nozzle is processed normally, when electrical characteristics exception, it is believed that shower nozzle is defective, be one quickly, detection mode easily.And existing traditional method needs inject ink and print, observation ink droplet motion conditions judges that shower nozzle is the most normal.
Above example is only limited in order to the technical solution of the utility model to be described; the technical solution of the utility model can be modified or equivalent by those of ordinary skill in the art; without deviating from spirit and scope of the present utility model, protection domain of the present utility model should be as the criterion with described in claims.
Claims (7)
1. an inkjet printer head failure detector, it is characterised in that include testing circuit and control system；Described testing circuit is located between the electrode of ink-jet printer, is responsible for measuring interelectrode electrical characteristics signal and exporting to described control system；According to the change of electrical characteristics signal between electrode, described control system judges whether shower nozzle breaks down.
2. inkjet printer head failure detector as claimed in claim 1, it is characterised in that described control system, after judging that shower nozzle breaks down, controls ink-jet printer and performs the operation of reply fault.
3. inkjet printer head failure detector as claimed in claim 1 or 2, it is characterised in that described electrical characteristics signal is the capacitance of the shape-changing material of ink-jet printer, or drive waveforms, or the current value during driving.
4. inkjet printer head failure detector as claimed in claim 1 or 2, it is characterised in that described testing circuit is integrated in the driving chip of ink-jet printer, or is arranged on circuit board.
5. inkjet printer head failure detector as claimed in claim 1 or 2, it is characterised in that be respectively provided with described testing circuit between each two electrode of ink-jet printer；Or each electrode uses a testing circuit and multiple selection switch, uses the mode of multiplexing and poll to realize the measurement of electrical characteristics signal between each electrode.
6. inkjet printer head failure detector as claimed in claim 1 or 2, it is characterised in that when shower nozzle moves to edge, the idle print time utilizing driving motor to slow down, shut down and reversely accelerate carries out faulty nozzle detection.
7. an ink-jet printer, it is characterised in that comprise the inkjet printer head failure detector according to any one of claim 1～6.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520905459 | 2015-11-12 | ||
| CN2015209054596 | 2015-11-12 |
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| Publication Number | Publication Date |
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| CN205523068U true CN205523068U (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610007264.9A Pending CN105620043A (en) | 2015-11-12 | 2016-01-06 | Fault detecting device and method for nozzle of ink-jet printer |
| CN201620010431.0U Active CN205523068U (en) | 2015-11-12 | 2016-01-06 | Ink jet printer shower nozzle fault detection device and ink jet printer |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610007264.9A Pending CN105620043A (en) | 2015-11-12 | 2016-01-06 | Fault detecting device and method for nozzle of ink-jet printer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105620043A (en) * | 2015-11-12 | 2016-06-01 | 北京奥托米特电子有限公司 | Fault detecting device and method for nozzle of ink-jet printer |
| CN109649006A (en) * | 2017-10-10 | 2019-04-19 | 海德堡印刷机械股份公司 | Threshold value in the print nozzles of detection failure determines |
| CN115230324A (en) * | 2022-06-23 | 2022-10-25 | 山东中康国创先进印染技术研究院有限公司 | Piezoelectric type ink jet nozzle and ink jet printer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110825063B (en) * | 2018-08-07 | 2021-02-09 | 上海宝信软件股份有限公司 | Fault detection device and method for jet printing controller |
| CN111152561B (en) * | 2018-11-07 | 2021-02-09 | 杭州旗捷科技有限公司 | Ink box verification method, system, readable storage medium and device |
| EP3871892B1 (en) * | 2020-02-28 | 2022-02-09 | Heidelberger Druckmaschinen AG | Detektion method to minimize maculature |
| CN115402005B (en) * | 2021-05-28 | 2024-03-01 | 广东聚华印刷显示技术有限公司 | Method and device for detecting nozzle of printing head and storage medium |
| CN113858812B (en) * | 2021-09-30 | 2022-06-24 | 上海魅奈儿科技有限公司 | Device and method for detecting blockage of nozzle of ink-jet printer |
| CN115230350B (en) * | 2022-06-23 | 2024-02-06 | 山东中康国创先进印染技术研究院有限公司 | Inkjet printer nozzle, fault detection method and fault detection system thereof |
| CN115091853B (en) * | 2022-06-23 | 2023-06-13 | 广州爱发电子产品有限公司 | System, method and platform suitable for ink break detection of printer nozzle |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3697209B2 (en) * | 2001-12-27 | 2005-09-21 | キヤノン株式会社 | Liquid discharge detection method and apparatus and ink jet recording apparatus |
| JP2004207485A (en) * | 2002-12-25 | 2004-07-22 | Seiko Epson Corp | Nozzle clogging detector, liquid drop discharger, electro-optical device, electro-optical device manufacturing method and electronic instrument |
| JP4432922B2 (en) * | 2006-03-17 | 2010-03-17 | セイコーエプソン株式会社 | Droplet discharge device |
| JP2011084043A (en) * | 2009-10-19 | 2011-04-28 | Seiko Epson Corp | Ejection examination apparatus and printing apparatus |
| US8556364B2 (en) * | 2010-07-01 | 2013-10-15 | Fujifilm Dimatix, Inc. | Determining whether a flow path is ready for ejecting a drop |
| CN105620043A (en) * | 2015-11-12 | 2016-06-01 | 北京奥托米特电子有限公司 | Fault detecting device and method for nozzle of ink-jet printer |
-
2016
- 2016-01-06 CN CN201610007264.9A patent/CN105620043A/en active Pending
- 2016-01-06 CN CN201620010431.0U patent/CN205523068U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105620043A (en) * | 2015-11-12 | 2016-06-01 | 北京奥托米特电子有限公司 | Fault detecting device and method for nozzle of ink-jet printer |
| CN109649006A (en) * | 2017-10-10 | 2019-04-19 | 海德堡印刷机械股份公司 | Threshold value in the print nozzles of detection failure determines |
| CN115230324A (en) * | 2022-06-23 | 2022-10-25 | 山东中康国创先进印染技术研究院有限公司 | Piezoelectric type ink jet nozzle and ink jet printer |
| CN115230324B (en) * | 2022-06-23 | 2024-04-09 | 山东中康国创先进印染技术研究院有限公司 | Piezoelectric type ink jet nozzle and ink jet printer |
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| CN105620043A (en) | 2016-06-01 |
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Effective date of registration: 20190627 Address after: 100000 Beijing Shunyi District Niulanshan Town Tengren Road, No. 22, 4 Building 1 Floor Patentee after: Beijing run LIAN Microelectronics Technology Development Co., Ltd. Address before: 101320 Building 03, 21 Linhe Street, Renhe and Linhe Industrial Development Zone, Shunyi District, Beijing Patentee before: BEIJING AOTUOMITE ELECTRONIC CO., LTD. |
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Effective date of registration: 20210207 Address after: 102200 162, 1st floor, building 1, yard 35, Huilongguan West Street, Changping District, Beijing Patentee after: Beijing Taiwei Huaying Technology Co.,Ltd. Address before: 100000 Beijing Shunyi District Niulanshan Town Tengren Road, No. 22, 4 Building 1 Floor Patentee before: BEIJING AORUN LIANCHUANG MICROELECTRONIC TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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Effective date of registration: 20210715 Address after: 271000 No.123 Keji North Street, Eastern New District, Tai'an City, Shandong Province Patentee after: Shandong Zhongkang Jihong Technology Development Co.,Ltd. Address before: 102200 162, 1st floor, building 1, yard 35, Huilongguan West Street, Changping District, Beijing Patentee before: Beijing Taiwei Huaying Technology Co.,Ltd. |