CN106626811A - Photo machine and printing method thereof - Google Patents
Photo machine and printing method thereof Download PDFInfo
- Publication number
- CN106626811A CN106626811A CN201710007347.2A CN201710007347A CN106626811A CN 106626811 A CN106626811 A CN 106626811A CN 201710007347 A CN201710007347 A CN 201710007347A CN 106626811 A CN106626811 A CN 106626811A
- Authority
- CN
- China
- Prior art keywords
- paper
- printing
- defects
- wide format
- format printer
- 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
-
- 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
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
-
- 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
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/0095—Detecting means for copy material, e.g. for detecting or sensing presence of copy material or its leading or trailing end
-
- 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
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/02—Platens
- B41J11/04—Roller platens
Abstract
The invention discloses a photo machine and a printing method thereof, and the quality of a picture printed by the photo machine is improved. The key point of the technical scheme is as follows: the printing method comprises the steps: a detection device detects paper, and if paper defects are detected, the detection device further judges whether the paper defects are contained in paper which is being printed with a pattern or is to be printed with a pattern or not; if so, a paper feeding roller stops rotation and a spray head trolley stops printing ink and resets; and if not, the detection device controls a printing device to print the pattern, the paper feeding roller stops rotation, and the spray head trolley stops printing ink and resets.
Description
Technical field
The present invention relates to printing equipment technical field, more particularly to a kind of wide format printer and its Method of printing.
Background technology
Wide format printer makes a kind of computer peripheral for being mainly used in advertisement field, can be used to export colour image and
Word, makes a kind of type for significantly drawing spray drawing machine.With type as the criteria for classifying, significantly draw inkjet printing field and rely on for a long time and divided
For two kinds, a kind of is the spray drawing machine of ultra-wide breadth, and fabric width is more in 1.5m band 5m, and breadth is big, and air brushing efficiency high, printing precision is low.
Oily ink being adopted the ink-jet ink of ultra-wide breadth spray drawing machine, weatherability is strong, rain and sun, long-time placement out of doors will not more
Fade discoloration, be mainly used in large-scale outdoor wall advertisement and signboard.Another kind makes wide format printer, it may also be said to be indoor air brushing
Machine, fabric width is in 0.5m-1.5m, and air brushing speed is relatively slow, and printing precision is high, spray drawing machine of the R＆D costs relative to ultra-wide breadth
It is relatively costly.Water-base ink is adopted the ink-jet ink of wide format printer more, being mainly used in the small breadth of digital image output or open air
Ad production.Because the pattern color that it is printed is gorgeous, saturation degree is good, high precision, and the colour that can take an A0 breadth is painted
Figure instrument.
The performance of wide format printer embodies both ways, a print quality for making image, and another is the print speed of image.
The print quality of image and the print speed of image are conflicting two performance indications.Under the same conditions, improve and print
Quality necessarily affects out figure speed, therefore recognizes impact of the two indexs to wide format printer performance, before understanding air brushing technology
Carry.
But, the picture quality that wide format printer is printed is not only relevant with the print performance of printing device, also and paper quality
Relevant, if there is fold, cavity, breach etc. on paper, the picture for printing is still substandard products.Wide format printer whether there is in unknown paper sheet
Printed in the case of paper defects, the picture for printing is not only substandard products and ink is caused to waste, and also needs to carry out doing over again printing
Qualified picture.
The content of the invention
The first object of the present invention is to provide before a kind of printing the wide format printer that can detect paper quality, can reduce description
Machine the print on paper for having paper defects number of times, so as to reduction in the numbers of seconds.
The present invention above-mentioned technical purpose technical scheme is that：
A kind of wide format printer, including hold down gag, for paper to be flattened, paper scanning means, for being scanned to paper,
Scanning signal is sent, paper defect testing device, in response to the detection signal, according to the scanning signal paper is judged whether
Disease, and send keying signal；Printing equipment, for printing to paper, in response to the keying signal, and opens according to described
Close signal to open or stop printing.
Further, the hold down gag includes two placement rollers be arrangeding in parallel and a pressure roller, described two placements
Roller is arranged at intervals on a horizontal plane, forms the gap of an abutting coil paper, and the pressure roller is arranged at the transmitting path of paper
Go up and be pressed in paper top.
Further, the paper scanning means includes light source base and CCD camera, the light source base be arranged at placement roller with
Between pressure roller, the CCD camera is located at directly over light source base.
Further, the sheet detecting apparatus are coupled to the CCD camera, including detector unit and control unit, institute
Detector unit is stated for judging paper with the presence or absence of paper defects, described control unit is used to control the keying of printing equipment.
Further, the printing equipment includes formfeed stick and shower nozzle dolly, and the intake roller is parallel with the pressure roller, and
Positioned at pressure roller top, the shower nozzle dolly is located at intake roller top, and its mobile route is parallel with the intake roller.
Further, the paper defects includes fold, hole, breach and spot.
Further, the detection means includes the first mode of operation, and first pattern is as follows：If there is paper
Disease, and paper defects is included in and prints or will be on the paper of print pattern, the feeding-in roll of detection means control printing equipment stops
Rotation stop is moved, and shower nozzle dolly stops ink-jet and resets.
Further, the detection means includes the second mode of operation, and second mode of operation is as follows：If there is paper
Disease, and paper defects is not included in printing or will be on the paper of print pattern, detection means control printing equipment has printed figure
After case, feeding-in roll stops operating, and shower nozzle dolly stops ink-jet and resets.
The second object of the present invention is to provide a kind of Method of printing based on wide format printer, significantly more efficient can reduce description
Machine the print on paper for having paper defects number of times, so as to reduction in the numbers of seconds.
The present invention above-mentioned technical purpose technical scheme is that：
A kind of Method of printing based on wide format printer, while printing equipment print paper, scanning means is scanned simultaneously to paper
Send scanning signal；Detection means detects to scanning signal, judges whether paper has paper defects；If there is paper defects, enter one
Step judges whether paper defects is included in and is printing or will be on print pattern paper；If paper defects is included in and print or will beat
On the paper being patterned, printing equipment stops printing；If paper defects be not included in printing or will on the paper of print pattern,
Printing equipment to have been printed stop after pattern and printed.
In sum, the invention has the advantages that：Before wide format printer print image, paper is entered to detect,
Wide format printer can effectively be reduced in the print on paper pattern number of times for having paper defects, the defect rate of the product for printing is reduced, and then
The number of times that reduction is done over again, improves operating efficiency.
Description of the drawings
Fig. 1 is the structural representation of wide format printer hold down gag and paper scanning means；
Fig. 2 is the structural representation of wide format printer printing equipment；
Fig. 3 is the enlarged drawing in A portions in Fig. 2；
Fig. 4 is the flow chart of each device in wide format printer；
Fig. 5 is the conceptual block diagram of wide format printer Method of printing.
In figure, 1, hold down gag；2nd, paper scanning means；3rd, paper defect testing device；4th, printing equipment；11st, roller is placed；
12nd, pressure roller；21st, light source base；22nd, CCD camera；31st, detector unit；32nd, control unit；41st, formfeed stick；42nd, shower nozzle dolly.
Specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
This specific embodiment is only explanation of the invention, and it is not limitation of the present invention, people in the art
Member can make as needed the modification without creative contribution after this specification is read to the present embodiment, but as long as at this
All protected by Patent Law in the protection domain of invention.
Embodiment one：A kind of wide format printer, reference Fig. 1, Fig. 2 and Fig. 3, including hold down gag 1, paper scanning means 2, paper
Sick detection means 3 (not marking in figure, it is integrated in PC or in application specific processor), printing equipment 4.With reference to Fig. 4 wide format printers
Device flow chart, wherein hold down gag 1 be used for paper is extruded, enable paper that there is the smooth exhibition of certain tension force
Open, so as to convenient scanning means is scanned to paper.CCD camera 22 in paper scanning means 2 is scanned to paper,
It is converted into electric signal and judgement is analyzed by the detector unit 31 of paper defect testing device 3, so that it is determined that paper whether there is paper defects,
Keying signal is exported to printing equipment 4.Printing equipment 4 is then according to this keying signal judging whether to printing.
Hold down gag 1 includes two placement rollers 11, there is the gap that can abut coil paper between roller 11 placing, and coil paper is abutted
On roller 11 is placed, and pressure roller 12 is provided with the mobile route of paper, pressure roller 12 is pressed in the top on paper, so that on paper
Tension force increase, become smooth.Two catch are additionally provided with roller 11 is placed, the two ends of coil paper can be respectively connected to, it is right
Paper carries out spacing, prevents the middle axial movement of paper.
Paper scanning means 2 mainly includes light source base 21 and CCD camera 22, the smart image sensors that the present invention is adopted
Core is CCD camera 22, the features such as small volume, lightweight, high resolution, high precision, good stability that CCD has, is made
Measuring system is not necessary to configure complicated kinematic mechanisms, so that it may obtain higher certainty of measurement and good stability.
The basic structure of CCD solid-state image pick-up devices makes the CMOS array of capacitors under Pulse Width Control, with Charged Couple, storage, transfer work(
Can, it has face battle array and the class of linear array two, and the present invention uses the pass injection mode Plane Array CCD Device that application prospect is extensively sent out.Light source
Seat 21 uses LED stroboscopic light sources, IDRA.The light emitting diode that luminous energy can be converted electrical energy into has small volume.It is low in energy consumption, corresponding
The characteristics such as speed fast, luminous monochromaticjty is good, reliability is high, good mechanical property, easy of integration, life-span length.
Sheet detecting apparatus include detector unit 31 and control unit 32, and detector unit 31 is connected with CCD camera 22, passes through
Image processing software is processed the scanning signal that CCD sends, and wherein image processing software can adopt FrameWorlk,
FrameWorlk has powerful function, can meet the different demands of industry-by-industry, includes spot-analysis, gray analysis, mould
Plate analysis, color analysis, the identification of OCR character machinings, one-dimensional bar code and two-dimensional bar, Automatic tracking sensor, measurement
Sensor, and arithmetic logic unit is equipped with, can use by oneself on figure and take a little, line taking.FrameWorlk has three main groups
Into part.First makes to operate in the FrameWork user interfaces on PC, using familiar Windows operating system.Second
It is the embedded part for operating in the software in smart image sensors, FeameWork firmwares.3rd is Firmware emulators,
If without smart image sensors, Firmware emulators imitate completely the hardware on PC.The principle of detection is：In paper
On breadth, with several ccd video camera on-line checking special light source reflections or the intensity of transmitted light, electric signal, Jing meters are converted into
The process of calculation machine, judges that paper whether there is paper defects.Control unit 32 is connected with printing equipment 4, according to the right of detector unit 31
The detection of paper, controls the keying of printing equipment 4.Sheet detecting apparatus can be integrated in PC, nonshared control unit etc..
Printing equipment 4 is made up of support, guide rail, shower nozzle dolly 42, power supply, intake roller and accessory system, and each several part is coordinated
Work.Operation principle is：Shower nozzle dolly 42 does transversal scanning campaign according to drawing command on guide rail, and shower nozzle is touched in print signal
Ink-jet is given, shower nozzle dolly 42 reaches the drafting that a band is completed after the other end, and intake roller starts to drive paper to vertically move,
Until print out task is completed.Ink feeding system is needed to continue to the ink supply of nozzle ink chamber in print procedure.Cleaning device is mainly completed
The cleaning of shower nozzle, because shower nozzle long-time is not printed, the ink on nozzle can dry up, or the time-write interval is long, heap at nozzle
Long-pending residue is excessive, the phenomenon that can all cause shower nozzle to block, so shower nozzle is cleaned in good time during spraying, to protect
The quality of card picture.Shower nozzle cleaning can send cleaning command by button to the controller in master board to be carried out.
Sheet detecting apparatus can carry out appropriate control, wherein paper according to the concrete condition of paper to printing equipment 4
Detection means can be integrated in PC ends, nonshared control unit etc., make whole wide format printer have multiple mode of operations, one of which definition
It is as follows for the first mode of operation：
If there is paper defects, and paper defects is included in and prints or will be on the paper of print pattern, detection means control prints dress
The feeding-in roll for putting 4 stops operating, and shower nozzle dolly 42 stops ink-jet and resets.
Another kind of mode of operation is defined as the second mode of operation, and the second mode of operation is as follows：
If there is paper defects, and paper defects is not included in printing or will be on the paper of print pattern, detection means control is printed
Device 4 has been printed after pattern, and feeding-in roll stops operating, and shower nozzle dolly 42 stops ink-jet and resets.
Wherein, the pattern that will be printed can be several.
Stop printing because printing equipment 4 can control printing equipment 4 when sheet detecting apparatus detect paper defects, therefore be
Enable operating personnel in time to paper process, remove paper defects part, be also integrated with alarm unit in detection means, when detecting
When having paper defects, and alarm.
Can be by general processor, numeral with reference to the various functions and control method of embodiments disclosed herein description
Signal processor (DSP), special IC (ASIC), field programmable gate array (FPGA) or other FPGA groups
Part, discrete gate or transistor logic, discrete hardware components are designed to perform any combinations of function described herein in fact
Apply or perform.General processor can be microprocessor, but another selection is that the processor can be any conventional process
Device, controller, microcontroller or state machine.Processor can also be embodied as the combination of computation module, such as DSP and microprocessor
Combination, the combination of multi-microprocessor, one or more microprocessors and DSP core are combined or any other this are matched somebody with somebody
Put.
Embodiment two：A kind of Method of printing based on wide format printer, wide format printer includes that paper scanning means 2 and note detection are filled
Put, paper scanning means 2 is used to be scanned paper, send the scanning comprising paper image information to sheet detecting apparatus and believe
Number, sheet detecting apparatus judge that paper whether there is paper defects according to scanning signal.
With reference to summaries of the Fig. 5 to wide format printer Method of printing：While 4 print paper of printing equipment, scanning means is to paper
It is scanned and sends scanning signal；Detection means detects to scanning signal, judges whether paper has paper defects；If there is paper
Disease, then determine whether whether paper defects is included in and printing or will be on print pattern paper；If paper defects is included in beating
Print will be on the paper of print pattern, and printing equipment 4 stops printing；If paper defects is not included in printing or will printed drawings
On the paper of case, printing equipment 4 to have been printed stop after pattern and printed.
Can be by general processor, numeral with reference to the various functions and control method of embodiments disclosed herein description
Signal processor (DSP), special IC (ASIC), field programmable gate array (FPGA) or other FPGA groups
Part, discrete gate or transistor logic, discrete hardware components are designed to perform any combinations of function described herein in fact
Apply or perform.General processor can be microprocessor, but another selection is that the processor can be any conventional process
Device, controller, microcontroller or state machine.Processor can also be embodied as the combination of computation module, such as DSP and microprocessor
Combination, the combination of multi-microprocessor, one or more microprocessors and DSP core are combined or any other this are matched somebody with somebody
Put.
Claims (9)
1. a kind of wide format printer, it is characterised in that
Including hold down gag (1), for paper to be flattened,
Paper scanning means (2), for being scanned to paper, sends scanning signal,
Paper defect testing device (3), in response to the detection signal, judges whether paper defects, concurrently according to the scanning signal
Go out keying signal；
Printing equipment (4), for printing to paper, in response to the keying signal, and opens according to the keying signal
Or stop printing.
2. wide format printer according to claim 1, it is characterised in that the hold down gag (1) is including two for be arrangeding in parallel
Roller (11) and a pressure roller (12) are placed, described two placements roller (11) are arranged at intervals on a horizontal plane, form one and support
The gap of coil paper is connect, the pressure roller (12) is arranged in the transmitting path of paper and is pressed in paper top.
3. wide format printer according to claim 1, it is characterised in that the paper scanning means (2) is including light source base (21)
With CCD camera (22), the light source base (21) is arranged at places between roller (11) and pressure roller (12), CCD camera (22) position
Directly over light source base (21).
4. wide format printer according to claim 1, it is characterised in that the sheet detecting apparatus are coupled to the CCD camera
(22), including detector unit (31) and control unit (32), the detector unit (31) is for judging paper with the presence or absence of paper defects,
Described control unit (32) is for controlling the keying of printing equipment (4).
5. wide format printer according to claim 1, it is characterised in that the printing equipment (4) includes formfeed stick (41) and spray
Head dolly (42), the intake roller is parallel with the pressure roller (12), and positioned at the pressure roller (12) top, the shower nozzle dolly
(42) positioned at intake roller top, its mobile route is parallel with the intake roller.
6. wide format printer according to claim 1, it is characterised in that the paper defects includes fold, hole, breach and spot.
7. wide format printer according to claim 5, it is characterised in that the detection means includes the first mode of operation, described
First pattern is as follows：If there is paper defects, and paper defects is included in and prints or will be on the paper of print pattern, detection dress
The feeding-in roll for putting control printing equipment (4) stops operating, and shower nozzle dolly (42) stops ink-jet and resets.
8. wide format printer according to claim 5, it is characterised in that the detection means includes the second mode of operation, described
Second mode of operation is as follows：If there is paper defects, and paper defects is not included in printing or will be on the paper of print pattern, detection
After device control printing equipment (4) has printed pattern, feeding-in roll stops operating, and shower nozzle dolly (42) stops ink-jet and resets.
9. a kind of Method of printing based on wide format printer, it is characterised in that
While printing equipment (4) print paper, scanning means is scanned and sends scanning signal to paper；
Detection means detects to scanning signal, judges whether paper has paper defects；
If there is paper defects, determine whether whether paper defects is included in and printing or will be on print pattern paper；
If paper defects is included in and prints or will be on the paper of print pattern, printing equipment (4) stops printing；
If paper defects is not included in printing or will be on the paper of print pattern, printing equipment (4) printed and stop after pattern
Print.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710007347.2A CN106626811A (en) | 2017-01-05 | 2017-01-05 | Photo machine and printing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710007347.2A CN106626811A (en) | 2017-01-05 | 2017-01-05 | Photo machine and printing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106626811A true CN106626811A (en) | 2017-05-10 |
Family
ID=58843739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710007347.2A Pending CN106626811A (en) | 2017-01-05 | 2017-01-05 | Photo machine and printing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106626811A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112173775A (en) * | 2019-08-16 | 2021-01-05 | 广州玖域文化艺术有限责任公司 | Large-format printing tension control and online detection device |
| US11285744B2 (en) | 2018-04-30 | 2022-03-29 | Hewlett-Packard Development Company, L.P. | Detecting artefacts on printable substrates |
| CN114476809A (en) * | 2022-01-26 | 2022-05-13 | 深圳市银之杰科技股份有限公司 | Method and device for automatically sorting paper |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US11285744B2 (en) | 2018-04-30 | 2022-03-29 | Hewlett-Packard Development Company, L.P. | Detecting artefacts on printable substrates |
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