CN1790190A - Printer capable of preventing document from copy - Google Patents
Printer capable of preventing document from copy Download PDFInfo
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- CN1790190A CN1790190A CN 200510125732 CN200510125732A CN1790190A CN 1790190 A CN1790190 A CN 1790190A CN 200510125732 CN200510125732 CN 200510125732 CN 200510125732 A CN200510125732 A CN 200510125732A CN 1790190 A CN1790190 A CN 1790190A
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- 239000003550 marker Substances 0.000 claims description 21
- 101100189552 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) PCL6 gene Proteins 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 9
- 230000006870 function Effects 0.000 description 5
- 239000000976 ink Substances 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 2
- 241001270131 Agaricus moelleri Species 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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- 230000001502 supplementing effect Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The invention discloses a print device of file duplicating-proof in the file printing technique domain, which comprises the following parts: safe base grain building device, combination device and print output device, wherein the safe base grain building device generates the digital watermark data of normal embedded file data base; the combination device merges the normal data file and digital watermark file automatically; the print output device explains the merged data file correctly, which outputs the result. The device accomplishes simultaneous print of file duplicating-proof base grain and normal file data, which can be designed freely.
Description
Technical field
The invention belongs to the document printing techniques field, relate to a kind of document printing device of anti-duplicating, relate in particular to a kind of by printing a kind of device that the shading-duplication preventing of imbedding safety drawing is distinguished document original paper and copy simultaneously in the bottom of original document.
Background technology
Paper is the important carrier that information is propagated, and it is particularly important that the function of keeping secret of printed text also just shows, and for example classified papers have just become problem with testimonial improper duplicating, and this has promoted the development of antiforge technology to a certain extent.Printing technology false proof will have accurate printing equipment and supporting with it printing ink, paper etc.If can monopolize computer composition printing equipment and starting material or certain technology that other people do not grasp of a cover high, precision and frontier, or do not have enough financial resources imitated, the antiforge technology just can play one's part to the full.Common antiforge technology has version escutcheon brush of intaglio printing, hand engraving version impression, engraving making sheet, rainbow printing, computing machine creation or the like.But there are two problems in the antiforge technology, and the cost of one printing is than higher, and the quality of antifalse effect depends on the factors such as size of the quality of printing, plate-making and printing difficulty, disposable apparatus investment.Antifalse effect is unreasonable to be thought, corresponding cost of manufacture is also just high more, thereby has only very rich enterprise of fund and technical force, just can adopt; Its two identification and judgement that is not easy to the document true and false.The higher anti-counterfeiting technology of printing difficulty mainly is with the naked eye to go identification where necessary by the people, does not have the people of commercial printing knowledge to be difficult to distinguish exactly the true and false for those.Above-mentioned anti-counterfeiting technology is to a certain degree stoping the adulterator to duplicate the behavior of identical document, but is faced with the growing duplicating or the challenge of scanning device.
Be worth causing that what pay special attention to and pay attention to is duplicating machine in the office automation utility appliance, it is the most indispensable utility appliance in the business automation equipment.No matter modern duplicating machine has all reached very high level on the function or on printing quality.What have has an intelligent editing ability, can also realize that many duplicating machine connect mutual transmission information.The duplicating machine that some are more senior even can also realize color photocopying, the banknote that prints off can reach the degree of looking genuine.This ability of duplicating machine make it efficiently high texture print various documentations, alleviated clerical workforce's the labor capacity of copying widely, improved office efficiency, be subjected to clerical workforce's very big welcome.But simultaneously, it also makes to maintain secrecy takes precautions against the new problem that faces, and the confidential document data is easy to be copied in transmittance process and causes out of controlly, and duplicating machine becomes the instrument that makes things convenient for of letting out, stealing secret information.Intercepting and capturing the confidential document data overwhelming majority who takes the border out of from customs in recent years is that the situation of copy just can be seen the serious of this problem.Address this problem, except strengthening that duplicating machine is duplicated the management and control of confidential document data, the anti-reprography of confidential document data is used in also necessary research.
Publication number is that the claim 13 in U.S.'s application for a patent for invention document of US 2003/0029340 A1 has been mentioned a kind of equipment that can print two gray scales, a jamming pattern on file, comprising:
The printing equipment of first kind of gray scale of I is used for printing on the background document first gray scale;
The scavenge unit of first kind of gray scale of II is used for removing a selected zone of first gray scale, and this zone is corresponding to safety image;
The printing equipment of second kind of gray scale of III is used for printing second gray scale in the zone of removing first gray scale;
IV vision jamming pattern printing equipment is used for printing the vision jamming pattern at the selection area of background and first gray scale of removing.
In fact the printing that utilizes printing equipment described in this patent documentation to finish shading-duplication preventing needs three independences, complete print procedure at least, produces two gray-scale maps.This shows very loaded down with trivial details of process, the result of Da Yining has also just printed one deck shading-duplication preventing on common paper like this, want to be superimposed with normal document data, also want an extra print procedure, that is to say that the security document that obtains being embedded with shading-duplication preventing needs four independence, complete print procedure at least, print the very difficulty that will become for the important confidential document of multipage; This device can not carry out the embedding of different security pattern figures easily, because the design of a shading of every change all will repeat foregoing four print procedures.Thereby the printout to large-scale security document has brought very big challenge, and the print-out device of security document of the present invention has solved the problem that faces at present well for this reason.
Technical scheme
The objective of the invention is defective, propose a kind of printing equipment of preventing document from copy at existing apparatus.This device can disposablely print the security document with shading-duplication preventing by common printer paper and printing device, thereby reduced the cost of printing this type of document to a great extent, and this device can freely design shading-duplication preventing, has good dirigibility.
For reaching above purpose, the technical solution used in the present invention is:
A kind of printing equipment of preventing document from copy, comprise security pattern creation apparatus (1), merge device (2) and print-out device (3), the responsible generation of security pattern creation apparatus (1) is embedded in the digital watermark data file below the normal document data, and the data file that obtains described with corresponding page-description language, it is passed to merge device (2) then; Merge that device (2) is realized normal data file and the automatic combination of the digital watermarking file that generated by the security pattern creation apparatus, and generate final page description file, then it is passed to print-out device (3); The data file that print-out device (3) will merge device (2) after handling is carried out printout after the correct interpretation.
Further, security pattern creation apparatus (1) is integrated in the printer driver equipment.
The security pattern creation apparatus comprises the shading-duplication preventing functional module in (1), and the shading-duplication preventing functional module is used to be provided with shade color and density, chooses interference pattern.
Whether content, font attribute, position, angle and mark literal that the shading-duplication preventing functional module that comprises in the security pattern creation apparatus (1) is used to be provided with the mark literal repeat to be tiled in the space of a whole page.
The shading-duplication preventing functional module that security pattern creation apparatus (1) comprises is used to imbed date printed and printer IP address information.
The shading-duplication preventing functional module that security pattern creation apparatus (1) comprises generates digital watermark data, and saves the data in through among page description file PS2, the PS3, PCL5 or the PCL6 that expand.
The gray value information of background area kept when the shading-duplication preventing functional module that security pattern creation apparatus (1) comprises was used to be chosen in the document duplicating, and the gray value information in marker word zone is lost; Perhaps the gray value information of background area is lost, and the gray value information in marker word zone keeps.
Further, when merging device (2) normal data file and digital watermarking file being merged, the digital watermark data that contains shading-duplication preventing be in normal document data below.
Further again, have the interpreting means that the page description file of supporting different linked network order numbers, gray-scale value, linked network angle and site type is explained in the print-out device (3).
Further again, have the interpreting means that the page description file of supporting the User Defined dither matrix is explained in the print-out device (3).
The workflow of printing equipment of the present invention is:
A. in printer driver, call and embed the shading-duplication preventing functional module, wherein security pattern creation apparatus (1) generates the data file that contains digital watermark information according to the technical parameter that is provided with, and the data file after will being described with corresponding page-description language sends merging device (2) to;
B. merge device (2) and at first intercept and capture the normal document data stream that driver handles is crossed, the digital watermark data stream that then creation apparatus is passed over is inserted into the data stream front of normal document, and the data streaming file after will merging is transferred to print-out device (3);
C. print-out device (3) is processed into the dot array data that printer can be discerned to data streaming file according to common interpretation process, carries out last printout then.
Effect of the present invention is: adopt device of the present invention, realized on common paper, printing the security document that has anti-duplicating security pattern, and, the arrangement mode of shading-duplication preventing literal can also freely be set by the present invention, the font of hiding can change arbitrarily, the method of printing is simple and convenient, thereby has solved the problem that the anti-reprography in present printing field faces well.
By technical scheme of the present invention, below the confidential document data attaching print one deck shading-duplication preventing, the gray scale of this shading is more shallow, visual effect that can the normal document of overslaugh; It is shielded confidential document that printing has the document of shading-duplication preventing; when the document scans on duplicating machine or scanner; can not be sampled fully in the subregion of shading-duplication preventing, the mark literal of imbedding in advance will display, thereby can be easy to distinguish document copy and original paper.
Gray-scale value in the device of the present invention in background area and the mark character area is more approaching, so the marker word concealment effect is more satisfactory, casual checking can not be found hiding Info wherein.
Document printing device of the present invention has very big dirigibility, because printing type is more convenient, prints when can realize document data and security pattern data.
Device of the present invention is applicable to any one multi-function peripheral MFP (MultifunctionalPrinter) and common printer apparatus, and different movements is for the requirement difference of gray-scale value.
The document printing device of the embedded shading-duplication preventing that the present invention proposes goes for common paper, convenient management.
Description of drawings
Fig. 1 is a mark character area synoptic diagram in the shading-duplication preventing
Fig. 2 is a background patterns synoptic diagram in the shading-duplication preventing
Fig. 3 is the interference pattern synoptic diagram in the shading-duplication preventing
Fig. 4 is the local enlarged diagram of shading-duplication preventing
Fig. 5 is the direct printout synoptic diagram of shading-duplication preventing
Fig. 6 is normal document data synoptic diagram
Fig. 7 is the result schematic diagram of Fig. 5 after duplicating on the duplicating machine
Fig. 8 is normal data and shading-duplication preventing printout simultaneously result schematic diagram
Fig. 9 is the result schematic diagram of Fig. 8 after duplicating on the duplicating machine
Figure 10 is the structural representation of device of the present invention
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
As shown in figure 10, a kind of printing equipment of preventing document from copy, comprise security pattern creation apparatus (1), merge device (2) and print-out device (3), the responsible generation of security pattern creation apparatus (1) is embedded in the digital watermark data file below the normal document data, and the data file that obtains described with corresponding page-description language, it is passed to merge device (2) then; Merge that device (2) is realized normal data file and the automatic combination of the digital watermarking file that generated by the security pattern creation apparatus, and generate final page description file, then it is passed to print-out device (3); The data file that print-out device (3) will merge device (2) after handling is carried out printout after the correct interpretation.
In the present embodiment, at first in printer driver GUI, call creation apparatus 1, and following technical parameter be set by corresponding user interfaces with generation digital watermarking shading-duplication preventing function by corresponding order button:
(1) select the interference pattern type, present embodiment has selected one group of sinusoidal line to arrange the curve group that forms;
(2) the input marking literal " is forbidden duplicating ";
(3) font name of selected marker word is " a Chinese row pattern ";
(4) font size that marker word is set is 72pt;
(5) position of assigned tags word can be upper, middle and lower, a left side or right;
(6) angle of setting marker word is counterclockwise 45 degree;
(7) select whether to repeat to be tiled in the whole space of a whole page;
The background area half-tone information is lost still marker word area grayscale value information and is lost when (8) selecting document to duplicate, and present embodiment is selected the latter;
(9) grey level that shading-duplication preventing is set is 3.
Security pattern creation apparatus 1 utilizes above-mentioned technical parameter, calls self corresponding module and generates the digital watermark data that contains shading-duplication preventing, and be that the PS form is kept on the hard disk with these data with the page description file form.The beginning of this PS file comprises delegation's illustrative character string, another identification character is inserted in the back of character string, such as " 0x0A ", normal digital watermark data appends in the back of " 0x0A ", simultaneously the absolute path name of digital watermark data file is returned to printed driver.
The whole structure of the shading-duplication preventing that security pattern creation apparatus 1 generates as shown in Figure 5.Fig. 4 is the synoptic diagram after the local amplification of Fig. 5.The marker word pattern of shading-duplication preventing as shown in Figure 1, by synoptic diagram as can be seen the marker word pattern form by the little sites at 45 degree net angles; The background patterns of shading-duplication preventing as shown in Figure 2, and background patterns is made up of the big sites at 45 degree net angles; Fig. 3 is the interference pattern in the shading-duplication preventing, and the pattern of interference pattern can have a lot, and its effect is exactly the vision that is used for disturbing the people.Marker word is to be embedded in the large-area background area, and interference pattern can attract the notice of human eye, thereby makes the better effects if that marker word is hidden.The gray-scale value of adding background area and marker word zone is identical, so if do not examine, human eye is difficult to find to be concealed with among Fig. 5 the alert flag word of " forbidding duplicating " printed words.But the background area is big or small with the site in the marker word zone to be different with frequency, and duplicating machine is different to the ability of these two area samplings.When document duplicated on duplicating machine, the most of gray value information in the marker word zone was lost, thereby presents white space; Most of gray value information of background area is retained, and the caution printed words of " forbidding duplicating " display, and the effect synoptic diagram of Fig. 5 after duplicating on the duplicating machine is shown in Figure 7, just can be easy to pick out copy and original paper with this.If the composition site of background patterns is than the site in the marker word pattern hour, the effect after the duplicating is then opposite, and promptly most of gray value information of background area is lost, and the most of gray value information in the marker word zone is retained.
After merging the pathname that device 2 receives the digital watermarking file that security pattern creation apparatus 1 returns, enter the merging process of normal document data file with the digital watermarking file:
(1) printer is intercepted and captured the PS file that the software for editing of front end sends, as shown in Figure 6;
(2) open corresponding PS file according to the pathname of digital watermarking file, search identifier " 0x0A ", read total data thereafter then;
(3) printer driver follows the data of digital watermarking PS file to combine the PS file data of normal document, generates a new PS file, and wherein the data supplementing of digital watermarking file is in the front of normal document data.
PS file after printer driver will merge is transferred to print-out device 3, print-out device 3 utilizes embedded grid image processor Rip (Raster Image processor) to carry out rasterization process, and Rip has the function of handling the PS file with the different linked network order numbers of support herein.Data with rasterized after Rip handles is delivered to final print out equipment.
By the effect after the printout of the present invention as shown in Figure 8, be not difficult to find marker word information hiding in the shading-duplication preventing if carefully do not distinguish equally, but the effect after duplicating as shown in Figure 9, can distinguish the original paper of Fig. 8 for document printing obviously, and Fig. 9 then is a copy.
Print when can realize normal document data and digital watermark data easily by apparatus of the present invention, the print speed ratio is very fast, and can make amendment to the various attributes of marker word neatly in the print procedure.This device is applicable to the printing of common paper, and cost is cheaper, thereby has satisfied user's demand well.
Above-mentioned steps be one preferred embodiment.Those skilled in the art be not difficult to draw other device for carrying out said and without prejudice to overall thought of the present invention.
Wherein the interference pattern in the shading-duplication preventing can be designed to any pattern.
Wherein the marker word in the shading-duplication preventing can be replaced by the Logo picture of other safety drawing, company, individual's signature.
Wherein the nucleus module of shading-duplication preventing function generates the page-description language (PDL) that digital watermark data can be preserved into other, as PCL5 or PCL6.
Wherein the normal data file can have different combinations with the digital watermarking file, and also can carry out exchanges data by other modes, such as the merging of directly finishing two document flows in internal memory.
Wherein shading-duplication preventing can be divided into different zones, and each zone is provided with different mark printed words and gray value information, thereby can obtain different effects, simultaneously because the difference of gray value information can adapt to the different China ink amount setting of duplicating well.When the China ink amount of duplicating machine is provided with when excessive or too small, the effect in the possible subregion lost efficacy, but effects may be very desirable in other zones.
Claims (10)
1. the printing equipment of a preventing document from copy, comprise security pattern creation apparatus (1), merge device (2) and print-out device (3), the responsible generation of security pattern creation apparatus (1) is embedded in the digital watermark data file below the normal document data, and the data file that obtains described with corresponding page-description language, it is passed to merge device (2) then; Merge that device (2) is realized normal data file and the automatic combination of the digital watermarking file that generated by the security pattern creation apparatus, and generate final page description file, then it is passed to print-out device (3); The data file that print-out device (3) will merge device (2) after handling is carried out printout after the correct interpretation.
2. the printing equipment of a kind of preventing document from copy as claimed in claim 1, it is characterized in that: described security pattern creation apparatus (1) is integrated in the printer driver equipment.
3. the printing equipment of a kind of preventing document from copy as claimed in claim 1, it is characterized in that: security pattern creation apparatus (1) includes the shading-duplication preventing functional module, and the shading-duplication preventing functional module is used to be provided with shade color and density, chooses interference pattern.
4. the printing equipment of a kind of preventing document from copy as claimed in claim 3, it is characterized in that: whether content, font attribute, position, angle and mark literal that the shading-duplication preventing functional module is used to be provided with the mark literal repeat to be tiled in the space of a whole page.
5. the printing equipment of a kind of preventing document from copy as claimed in claim 4, it is characterized in that: the shading-duplication preventing functional module also is used to imbed date printed and printer IP address information.
6. the printing equipment of a kind of preventing document from copy as claimed in claim 5, it is characterized in that: the shading-duplication preventing functional module that security pattern creation apparatus (1) comprises generates digital watermark data, and saves the data in through among page description file PS2, the PS3, PCL5 or the PCL6 that expand.
7. as the printing equipment of claim 3,4,5 or 6 described a kind of preventing document from copy, it is characterized in that: the gray value information of background area kept when the shading-duplication preventing functional module that security pattern creation apparatus (1) comprises was used to be chosen in the document duplicating, and the gray value information in marker word zone is lost; Perhaps the gray value information of background area is lost, and the gray value information in marker word zone keeps.
8. as the printing equipment of claim 1,2,3,4,5 or 6 described a kind of preventing document from copy, it is characterized in that: when merging device (2) with normal data file and the merging of digital watermarking file, the digital watermark data that contains shading-duplication preventing is in the front of normal document data.
9. as the printing equipment of claim 1,2,3,4,5 or 6 described a kind of preventing document from copy, it is characterized in that: the interpreting means that has the page description file explanation of supporting different linked network order numbers, gray-scale value, linked network angle and site type in the print-out device (3).
10. as the printing equipment of claim 1,2,3,4,5 or 6 described a kind of preventing document from copy, it is characterized in that: the interpreting means that has the page description file explanation of supporting the User Defined dither matrix in the print-out device (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101257324A CN100377017C (en) | 2005-12-01 | 2005-12-01 | Printer capable of preventing document from copy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101257324A CN100377017C (en) | 2005-12-01 | 2005-12-01 | Printer capable of preventing document from copy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1790190A true CN1790190A (en) | 2006-06-21 |
| CN100377017C CN100377017C (en) | 2008-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101257324A Expired - Fee Related CN100377017C (en) | 2005-12-01 | 2005-12-01 | Printer capable of preventing document from copy |
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| Country | Link |
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| CN (1) | CN100377017C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101246326B (en) * | 2006-11-20 | 2010-07-07 | 夏普株式会社 | Image processing method, image processing apparatus and image reading apparatus |
| WO2010127588A1 (en) * | 2009-05-05 | 2010-11-11 | 山东新北洋信息技术股份有限公司 | Method and device for controlling watermark printing |
| CN102019800A (en) * | 2009-09-09 | 2011-04-20 | 东莞东运机械制造有限公司 | Electronic sculpturing machine |
| CN106611434A (en) * | 2015-10-26 | 2017-05-03 | 北大方正集团有限公司 | Drawing method and drawing device of text shading |
| CN107037993A (en) * | 2016-02-04 | 2017-08-11 | 株式会社理光 | Image processing system and image formation system |
| CN108269233A (en) * | 2018-03-15 | 2018-07-10 | 福州大学 | A kind of word dither method based on shading halftoning |
| CN110641176A (en) * | 2019-08-14 | 2020-01-03 | 东莞金杯印刷有限公司 | Anti-copying printing method |
| CN111124318A (en) * | 2018-10-31 | 2020-05-08 | 株式会社理光 | Print document processing apparatus and print document processing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3599098B2 (en) * | 2000-11-14 | 2004-12-08 | 日本電気株式会社 | Copying system |
| US20030029340A1 (en) * | 2001-08-08 | 2003-02-13 | Kussmann Gregory S. | Method and apparatus for printing a document that when electronically scanned reveals security graphics |
| JP4000970B2 (en) * | 2002-09-18 | 2007-10-31 | 富士ゼロックス株式会社 | Image processing apparatus, image processing method, and image processing program |
| JP3952958B2 (en) * | 2003-01-22 | 2007-08-01 | キヤノン株式会社 | Image processing apparatus and image processing method |
| US7245740B2 (en) * | 2003-07-01 | 2007-07-17 | Oki Electric Industry Co., Ltd. | Electronic watermark embedding device, electronic watermark detection device, electronic watermark embedding method, and electronic watermark detection method |
| US20050058476A1 (en) * | 2003-09-17 | 2005-03-17 | Canon Kabushiki Kaisha | Copy-forgery-inhibited pattern density parameter determination method, copy-forgery-inhibited pattern image generation method, and image processing apparatus |
| JP4290089B2 (en) * | 2003-10-10 | 2009-07-01 | キヤノン株式会社 | Information processing apparatus and information processing method |
| JP2005115875A (en) * | 2003-10-10 | 2005-04-28 | Canon Inc | Printing control device and method, and computer program |
| JP4182046B2 (en) * | 2004-01-23 | 2008-11-19 | キヤノン株式会社 | Print processing system and print processing method |
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- 2005-12-01 CN CNB2005101257324A patent/CN100377017C/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101246326B (en) * | 2006-11-20 | 2010-07-07 | 夏普株式会社 | Image processing method, image processing apparatus and image reading apparatus |
| WO2010127588A1 (en) * | 2009-05-05 | 2010-11-11 | 山东新北洋信息技术股份有限公司 | Method and device for controlling watermark printing |
| CN102019800A (en) * | 2009-09-09 | 2011-04-20 | 东莞东运机械制造有限公司 | Electronic sculpturing machine |
| CN102019800B (en) * | 2009-09-09 | 2013-10-16 | 东莞东运机械制造有限公司 | Electronic sculpturing machine |
| CN106611434A (en) * | 2015-10-26 | 2017-05-03 | 北大方正集团有限公司 | Drawing method and drawing device of text shading |
| CN107037993A (en) * | 2016-02-04 | 2017-08-11 | 株式会社理光 | Image processing system and image formation system |
| CN108269233A (en) * | 2018-03-15 | 2018-07-10 | 福州大学 | A kind of word dither method based on shading halftoning |
| CN108269233B (en) * | 2018-03-15 | 2021-07-27 | 福州大学 | Text dithering method based on shading halftone |
| CN111124318A (en) * | 2018-10-31 | 2020-05-08 | 株式会社理光 | Print document processing apparatus and print document processing method |
| CN111124318B (en) * | 2018-10-31 | 2024-04-30 | 株式会社理光 | Print file processing apparatus and print file processing method |
| CN110641176A (en) * | 2019-08-14 | 2020-01-03 | 东莞金杯印刷有限公司 | Anti-copying printing method |
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| CN100377017C (en) | 2008-03-26 |
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