WO2010058814A1 - 印刷濃度調整装置、印刷濃度調整方法及び印刷濃度調整プログラム - Google Patents

印刷濃度調整装置、印刷濃度調整方法及び印刷濃度調整プログラム Download PDF

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Publication number
WO2010058814A1
WO2010058814A1 PCT/JP2009/069620 JP2009069620W WO2010058814A1 WO 2010058814 A1 WO2010058814 A1 WO 2010058814A1 JP 2009069620 W JP2009069620 W JP 2009069620W WO 2010058814 A1 WO2010058814 A1 WO 2010058814A1
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WO
WIPO (PCT)
Prior art keywords
print
print density
image information
bent
bending angle
Prior art date
Application number
PCT/JP2009/069620
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
明 池田
裕 宮坂
敏 竹澤
将勝 大川
Original Assignee
株式会社ミマキエンジニアリング
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 株式会社ミマキエンジニアリング filed Critical 株式会社ミマキエンジニアリング
Priority to CN2009801155454A priority Critical patent/CN102015310B/zh
Priority to EP09827595.1A priority patent/EP2277706A4/de
Priority to KR1020107024055A priority patent/KR101180070B1/ko
Publication of WO2010058814A1 publication Critical patent/WO2010058814A1/ja
Priority to US12/900,786 priority patent/US8079658B2/en

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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
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • B41J3/4073—Printing on three-dimensional objects not being in sheet or web form, e.g. spherical or cubic objects
    • 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
    • B41J11/008—Controlling printhead for accurately positioning print image on printing material, e.g. with the intention to control the width of margins
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46—Colour picture communication systems
    • H04N1/56—Processing of colour picture signals
    • H04N1/60—Colour correction or control

Definitions

  • the present invention relates to a print density adjustment device, a print density adjustment method, and a print density adjustment program for performing printing on a flex-molded medium by an ink jet printer.
  • membrane switches are used as switches for electrical equipment.
  • This membrane switch is formed by printing a switch image or the like on a sheet-like film by an ink jet printer and then bending the film into a concavo-convex shape (see, for example, Patent Documents 1 and 2).
  • an object of the present invention is to provide a print density adjustment device, a print density adjustment method, and a print density adjustment program capable of suppressing deterioration of an ink layer printed on a medium to be formed into a concavo-convex shape.
  • a print density adjusting device is a print density information adjusting device for print image information for performing printing on a bend-molded medium by an ink jet printer, the print image information acquiring means for acquiring the print image information, and the medium Molding information acquisition means for acquiring the molding information, apex detection means for detecting the apex of the bent portion to be bent based on the molding information, and bending angle detection means for detecting the bending angle of the bent portion based on the molding information And a print density adjusting means for adjusting the print density of the print image information acquired by the print image information acquiring means based on the vertex detected by the vertex detecting means and the bending angle detected by the bending angle detecting means, Have
  • the printing density adjusting apparatus it is possible to detect the apex to be bent and its bending angle by acquiring the molding information of the medium in addition to the print image information. Then, by adjusting the print density of the print image information based on the vertex and the bending angle, the print image information is optimally printed according to the expansion and contraction of the ink layer that occurs when the medium is bent in an uneven shape. Can be adjusted. As a result, it is possible to suppress the deterioration of the quality of the image printed on the media to be bent and molded.
  • the print density adjusting means adjust the print density of the print image information according to the distance from the vertex.
  • the print density change around the bent portion is adjusted by adjusting the print density according to the distance from the vertex.
  • the printing density can be made uniform by blurring.
  • the print density adjusting means lower the print density as it approaches the apex of the bent portion.
  • the print density is lowered toward the apex, so that the media is bent into a concave shape so that the media around the bent portion is The print density can be made uniform, and the ink layer can be prevented from rising and peeling off.
  • the print density adjusting means increase the print density as it approaches the apex of the bent portion.
  • the bent portion is formed by increasing the print density as it approaches the apex, so that the media is bent into a convex shape.
  • the print density in the periphery can be made uniform, and cracking of the ink layer can be suppressed.
  • the print density adjusting means adjust the print density of the print image information by changing the discharge density of the ink droplets discharged from the ink jet printer.
  • the interval between the ink droplets can be changed by changing the ejection density of the ink droplets as the print density adjusting means. For this reason, even when the medium is bent in a concavo-convex shape, interference between ink droplets can be minimized, so that destruction of the ink layer due to interference between ink droplets can be suppressed.
  • a print density adjustment method is a print density information adjustment method for print image information in which printing is performed with respect to a medium to be bent by an ink jet printer, the print image information acquisition step for acquiring print image information, and the medium
  • a molding information acquisition step for acquiring the molding information, a vertex detection step for detecting a vertex of the bending portion to be bent based on the molding information, and a bending angle detection step for detecting the bending angle of the bending portion based on the molding information
  • a print density adjustment step for adjusting the print density of the print image information acquired by the print image information acquisition step based on the vertex detected by the vertex detection step and the bending angle detected by the bending angle detection step;
  • the printing density adjusting method by acquiring media molding information in addition to print image information, it is possible to detect a vertex to be bent and its bending angle. Then, by adjusting the print density of the print image information based on the vertex and the bending angle, the print image information is optimally printed according to the expansion and contraction of the ink layer that occurs when the medium is bent in an uneven shape. Can be adjusted. As a result, it is possible to suppress the deterioration of the quality of the image printed on the media to be bent and molded.
  • the print density adjustment program is a print density information adjustment program for print image information for printing on a flex-molded medium by an ink jet printer, the print image information acquisition step for acquiring the print image information, and the medium
  • a molding information acquisition step for acquiring the molding information, a vertex detection step for detecting a vertex of the bending portion to be bent based on the molding information, and a bending angle detection step for detecting the bending angle of the bending portion based on the molding information
  • a print density adjustment step for adjusting the print density of the print image information acquired by the print image information acquisition step based on the vertex detected by the vertex detection step and the bending angle detected by the bending angle detection step; Is processed by a computer.
  • the print density adjustment program includes a step of acquiring media molding information in addition to print image information, so that a vertex to be bent and its bending angle can be detected. Then, by having a step of adjusting the print density of the print image information based on the vertex and the bending angle, the print image information is optimally adapted to the expansion and contraction of the ink layer that occurs when the media is bent in an uneven shape. Printing density can be adjusted. As a result, it is possible to suppress the deterioration of the quality of the image printed on the media to be bent and molded.
  • the print density adjustment apparatus and the print density adjustment method according to the present invention are realized in a RIP (Raster Image Processor).
  • the RIP according to the present embodiment adjusts the print density of print image data in order to print on a medium that is bent in an uneven shape in a subsequent process such as a membrane switch.
  • the membrane switch is a well-known switch, and has a configuration in which a resin film or the like molded in a convex shape is disposed on the contact.
  • the same or corresponding parts are denoted by the same reference numerals.
  • FIG. 1 is a diagram showing a printing system using RIP according to the present embodiment
  • FIG. 2 is a functional configuration diagram of RIP according to the present embodiment.
  • the RIP 1 according to the present embodiment is physically or logically connected to a CAD application 3 and an inkjet printer 4.
  • the CAD application 3 is a drawing application incorporated in a personal computer or the like.
  • the CAD application 3 creates molding information for bending a film and print image information to be printed on the film.
  • the molding information includes three-dimensional graphic information and two-dimensional graphic information.
  • the molding information includes the position coordinates of the apex of the bent portion and the bent angle of the bent portion as information on the bent portion of the film. Then, the CAD application 3 transmits the created molding information and print image information to the RIP 1.
  • the inkjet printer 4 prints an image on the surface of a film serving as a print medium by discharging ink droplets of one or a plurality of colors from an inkjet head (not shown).
  • the RIP 1 acquires molding information and print image information transmitted from the CAD application 3 and transmits print data obtained by performing density adjustment to the acquired print image information to the inkjet printer 4. For this reason, the RIP 1 includes functions of a print image information acquisition unit 11, a molding information acquisition unit 12, a vertex detection unit 13, a bending angle detection unit 14, and a print density adjustment unit 15.
  • the print image information acquisition unit 11 acquires print image information transmitted from the CAD application 3.
  • the molding information acquisition unit 12 acquires molding information transmitted from the CAD application 3.
  • the apex detection unit 13 detects the apex of the bent portion where the film is bent based on the molding information acquired by the molding information acquisition unit 12. That is, if the molding information is three-dimensional graphic information, the vertex detection unit 13 searches for a bent portion from the graphic information. If the molding information is two-dimensional graphic information, the vertex detection unit 13 adds the bending information added to the graphic information. A bent portion is searched based on information, a planar bent line, and the like. The vertex detection unit 13 detects the corner portion as a vertex when the searched bent portion is bent into a corner, and when the searched bent portion is bent into a curved surface, (Curved surface) The center is detected as a vertex.
  • the bending angle detection unit 14 detects the bending angle of the vertex detected by the vertex detection unit 13 based on the molding information acquired by the molding information acquisition unit 12. That is, if the molding information is three-dimensional graphic information, the bending angle detector 14 calculates the bending angle of the bending portion from the graphic information, and adds the graphic information to the graphic information if the molding information is two-dimensional graphic information. The bending angle of the bent portion is calculated based on the bent angle information.
  • FIG. 3 is a diagram for explaining the apex and the bending angle.
  • the vertex detection unit 13 detects P1 and P2 as the vertices.
  • the bending angle detector 14 detects ⁇ 1 and ⁇ 2 around the vertices P1 and P2 as bending angles of the bent portions B1 and B2. Since the bending angle ⁇ 1 of the bending portion B1 is smaller than 180 °, it can be determined that the bending portion B1 is bent in a concave shape, and the bending angle ⁇ 2 of the bending portion B2 is larger than 180, so It can be determined that the portion B2 is bent in a convex shape.
  • the print density adjustment unit 15 prints the print image information acquired by the print image information acquisition unit 11 based on the vertex P detected by the vertex detection unit 13 and the bending angle ⁇ detected by the bending angle detection unit 14. The density is adjusted. That is, the print density adjusting unit 15 adjusts the print density of the print image information according to the distance from the vertex P and the bending angle ⁇ .
  • FIG. 4 is a diagram for explaining the distance from the apex at the bent portion.
  • the bent portion B is bent at the bending angle ⁇ with the apex P as the center. Areas a, b, c, and d are set in order from the vertex P, and approach the vertex P in the order of d, c, b, and a.
  • the print density adjusting unit 15 decreases the print density of the print image information as it approaches the apex P, and conversely, the bent portion B is bent in a convex shape. As the vertex P is approached, the print density of the print image information is increased.
  • the print density adjusting unit 15 manages a print density setting table for setting the print density.
  • FIG. 5 shows a print density setting table in the concave bent portion
  • FIG. 6 shows a print density setting table in the convex bent portion.
  • the print density setting table shown in FIGS. 5 and 6 is a print density setting table in the case where color printing of cyan C, magenta M, and yellow Y is performed by the inkjet printer 4, and the overall density and the density ratio of each color. And are set. Note that a plurality of print density setting tables are provided for each bending angle ⁇ within a predetermined range.
  • the print density setting table shown in FIG. 5 corresponds to the concave bent portion B
  • the print density setting table is set so that the density decreases as the vertex P is approached. That is, the overall concentration is as low as 100% ⁇ 80% ⁇ 60% ⁇ 40% in order from d to a.
  • cyan C decreases as 20% ⁇ 16% ⁇ 12% ⁇ 8%
  • magenta M decreases as 30% ⁇ 24% ⁇ 18% ⁇ 12%.
  • Yellow Y is as low as 50% ⁇ 40% ⁇ 30% ⁇ 20%.
  • the print density table shown in FIG. 6 corresponds to the convex bent portion B
  • the print density table is set so that the density increases as the vertex P is approached. That is, the overall density increases from 100% ⁇ 120% ⁇ 140% ⁇ 160% in order from d to a.
  • cyan C is 20% ⁇ 24% ⁇ 28% ⁇ 32%
  • magenta M is 30% ⁇ 36% ⁇ 42% ⁇ 48%
  • yellow Y is 50%. % ⁇ 60% ⁇ 70% ⁇ 80%.
  • the overall density and the density ratio of each color ink shown in FIGS. 5 and 6 are examples, and are set as appropriate according to the type of ink and various conditions.
  • the print density setting table can be appropriately changed by an operation of an operator or the like.
  • the print density adjustment unit 15 refers to the print density setting table shown in FIGS. 5 and 6 to determine the print density of the print image information based on the bending angle ⁇ of the bent part B and the distance from the vertex P. Change the print density. That is, the print density adjusting unit 15 adjusts the print density by changing the discharge density of the ink droplets discharged from the ink jet printer 4 and creates print data to be transmitted to the ink jet printer 4.
  • FIG. 7 is a flowchart showing the processing operation of RIP.
  • the processing of the RIP 1 described below is performed by a processing unit (not shown) configured by a CPU or the like according to a program recorded in a storage device such as a ROM, the print image information acquisition unit 11, the molding information acquisition unit 12, This is performed by centrally managing the functions of the vertex detection unit 13, the bending angle detection unit 14, the print density adjustment unit 15, and the like.
  • the RIP 1 acquires print image information transmitted from the CAD application 3 (step S1).
  • the RIP 1 acquires the molding information transmitted from the CAD application 3 (step S2).
  • RIP1 detects the bent part B of the film F based on the molding information acquired in step S2, and detects the apex P of the bent part B (step S3).
  • the RIP 1 detects the bending angle ⁇ of the bending portion B detected in step S3 based on the molding information acquired in step S2 (step S4).
  • the RIP 1 adjusts the print density of the print image information acquired in Step S1 based on the vertex P detected in Step S3 and the bending angle ⁇ detected in Step S4 (Step S5).
  • the print density is adjusted by setting the print density to be lower as it approaches the vertex P in the concave bent portion B, and at the vertex P in the convex bent portion B. Set the print density higher as it gets closer.
  • the ejection density of the ink droplets ejected from the inkjet printer 4 is calculated according to the set print density, and the calculation result is generated as print data and transmitted to the inkjet printer 4.
  • the inkjet printer 4 prints an image by ejecting ink droplets onto the film F by performing ink ejection control based on the print data transmitted from the RIP 1.
  • the film F on which the image is printed is bent and formed into a concavo-convex shape by a molding device (not shown).
  • 8 and 9 are cross-sectional views of a film bent and formed in a concavo-convex shape.
  • the film F shown in FIG. 8 has an ink layer i of ink droplets ejected from the inkjet printer 4 formed on the surface side thereof. Then, the film F is formed by bending from the surface side of the film F, whereby a concave bent portion B3 and a convex bent portion B4 are formed on the film F.
  • FIG. 9 has an ink layer i of ink droplets ejected from the inkjet printer 4 formed on the back side thereof. And the convex bending part B5 and the concave bending part B6 are formed in the film F by bending by the shaping
  • the quality of the image printed on the film F is checked by the RIP 1 operator as shown in FIG.
  • This quality check particularly checks the quality of the printed image around the bent portion of the film F. Specifically, the printed images around the bent portions B3 to B6 shown in FIGS. 8 and 9 are observed, and the ink layer i is not lifted or cracked, the ink layer i is not peeled off, the printing is performed. Check if the density is uneven. If it is determined that these check items are not satisfied, the operator changes each density setting value in the print density setting table managed by RIP1. When the print density setting table of RIP1 is changed, the processing is repeated again from step S1, and an image is printed on the film F.
  • the vertex P to be bent and the bending angle ⁇ can be detected. Then, by adjusting the print density of the print image information based on the vertex P and the bending angle ⁇ , the print image information corresponds to the expansion and contraction of the ink layer i that occurs when the film F is bent in an uneven shape. It is possible to adjust to an optimal printing density. Thereby, the quality degradation of the image printed on the film F bend-molded can be suppressed.
  • the print density change around the bent portion B is blurred by adjusting the print density according to the distance from the vertex P.
  • the printing density can be made uniform.
  • the printing density is lowered toward the apex P, so that the film F is bent and formed into a concave shape, thereby printing around the bent portion B.
  • the density can be made uniform, and the floating of the ink layer i and the peeling of the ink layer i can be suppressed.
  • the film F is bent and formed in a convex shape by increasing the print density as it approaches the apex P, so that the area around the bent portion B is increased.
  • the print density can be made uniform and the ink layer i can be prevented from cracking.
  • the interval between the ink droplets can be changed by changing the ejection density of the ink droplets as a printing density adjusting means, even if the film F is bent in an uneven shape, the interference between the ink droplets And the destruction of the ink layer i due to interference between ink droplets can be suppressed.
  • the print density of the print image information is adjusted by referring to the print density management table.
  • the optimum print density may be calculated by a predetermined arithmetic expression. Good.
  • the quality of the image printed on the film F is checked by the operator.
  • the image printed on the film F is captured by a monitor or the like, and the captured image is captured by a computer or the like.
  • a change in density or the like may be analyzed, and the print density management table or a predetermined arithmetic expression may be automatically changed based on the analysis result.
  • the present invention can be used as a RIP.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Ink Jet (AREA)
PCT/JP2009/069620 2008-11-21 2009-11-19 印刷濃度調整装置、印刷濃度調整方法及び印刷濃度調整プログラム WO2010058814A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN2009801155454A CN102015310B (zh) 2008-11-21 2009-11-19 打印浓度调整装置以及打印浓度调整方法
EP09827595.1A EP2277706A4 (de) 2008-11-21 2009-11-19 Vorrichtung zur einstellung einer druckdichte, verfahren zur einstellung einer druckdichte und programm zur einstellung einer druckdichte
KR1020107024055A KR101180070B1 (ko) 2008-11-21 2009-11-19 인쇄농도 조정장치, 인쇄농도 조정방법 및 인쇄농도 조정 프로그램
US12/900,786 US8079658B2 (en) 2008-11-21 2010-10-08 Print density adjusting device, print density adjusting method and print density adjusting program

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008-298239 2008-11-21
JP2008298239A JP4456648B1 (ja) 2008-11-21 2008-11-21 印刷濃度調整装置、印刷濃度調整方法及び印刷濃度調整プログラム

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/900,786 Continuation US8079658B2 (en) 2008-11-21 2010-10-08 Print density adjusting device, print density adjusting method and print density adjusting program

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WO2010058814A1 true WO2010058814A1 (ja) 2010-05-27

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PCT/JP2009/069620 WO2010058814A1 (ja) 2008-11-21 2009-11-19 印刷濃度調整装置、印刷濃度調整方法及び印刷濃度調整プログラム

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US (1) US8079658B2 (de)
EP (1) EP2277706A4 (de)
JP (1) JP4456648B1 (de)
KR (1) KR101180070B1 (de)
CN (1) CN102015310B (de)
WO (1) WO2010058814A1 (de)

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JP5625920B2 (ja) * 2011-01-06 2014-11-19 セイコーエプソン株式会社 画像処理装置、画像処理方法及びそのプログラム
JP5760469B2 (ja) * 2011-02-07 2015-08-12 セイコーエプソン株式会社 画像処理装置および画像処理方法
JP5772097B2 (ja) * 2011-03-14 2015-09-02 セイコーエプソン株式会社 画像処理装置および画像処理方法
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US10265951B2 (en) 2016-06-29 2019-04-23 Canon Kabushiki Kaisha Inkjet printing apparatus and control method
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JP4456648B1 (ja) 2010-04-28
JP2010120342A (ja) 2010-06-03
CN102015310B (zh) 2013-04-24
EP2277706A4 (de) 2017-04-05
EP2277706A1 (de) 2011-01-26
US8079658B2 (en) 2011-12-20
KR20100136525A (ko) 2010-12-28
KR101180070B1 (ko) 2012-09-06
US20110074853A1 (en) 2011-03-31
CN102015310A (zh) 2011-04-13

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