WO2008040968A1 - Printer and method for printing - Google Patents
Printer and method for printing Download PDFInfo
- Publication number
- WO2008040968A1 WO2008040968A1 PCT/GB2007/003748 GB2007003748W WO2008040968A1 WO 2008040968 A1 WO2008040968 A1 WO 2008040968A1 GB 2007003748 W GB2007003748 W GB 2007003748W WO 2008040968 A1 WO2008040968 A1 WO 2008040968A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- swathe
- transition
- swathes
- stitching
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000007639 printing Methods 0.000 title claims abstract description 20
- 230000007704 transition Effects 0.000 claims abstract description 20
- 239000000758 substrate Substances 0.000 claims description 9
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 230000008021 deposition Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007641 inkjet printing Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007620 mathematical function Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
- G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
- G06K15/10—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by matrix printers
- G06K15/102—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by matrix printers using ink jet print heads
- G06K15/105—Multipass or interlaced printing
- G06K15/107—Mask selection
Definitions
- This invention relates to the field of printing and particularly raster printing.
- examples of the invention are concerned with the difficulties faced in printing a 'page-wide' image with a printhead that is not 'page-wide'.
- a head capable of printing a fully-formed image in a single pass can be used in a scanning mode - where the substrate is moved in a feed direction perpendicular to the print direction after each pass - thus, the second pass addresses a swathe parallel to the first printed swathe, but spaced in the substrate feed direction.
- the substrate is therefore addressed twice (or possibly more) - either by a single pass of multiple overlapping printheads or by a single printhead passing multiple times or a combination of the two. Since the overlap region must not be printed with double weight it is necessary to manage the deposition of print-pixels in the overlap regions.
- Printheads may produce drops of a single consistent size (binary) or variable size (greyscale). All print-pixels in Figure 1 are of identical size for the purposes of clarity. Two swathes, swathe 'A 1 and swathe 'B', are printed in such a way that there is an overlap region (diagonally shaded area) where a number of pixel locations can be printed as part of either swathe 'A' or swathe 'B'.
- the probability of deciding whether to print a given pixel in swathe 'A' is a mathematical function of 'm' and 'n' as defined above.
- Figure 5 shows stitching between swathes A and B that are offset by a distance d parallel to the swathe direction (1 or 2), where d is a non-integral number of pixel-spacings. Again, this results in a highly visible band of lighter tone of width m in the finished image.
- Figure 6 shows stitching between swathes A and B that have print-pixels of different sizes. With large enough errors in optical density this may also result in a visible band of width m in the printed image. Accordingly, the present invention provides a method for controlling the printing of overlapping swathes, resulting in improved print quality.
- a method for controlling the printing of overlapping swathes extending in a swathe direction with a succession of print lines extending perpendicular to the swathe direction comprising the step of defining for each print line a transition between one swathe and the next, with the location of the transition in the print line varying between print lines.
- the location of the transition in the print line varies as a function of displacement in the swathe direction.
- Figure 1 shows two swathes of print and the region of overlap between.
- Figure 2 displays a known stitching system referred to herein as 'soft-stitch' applied to the swathes of print shown in Figure 1.
- Figure 3 illustrates the result of a prior art stitching system carried out for two perfectly aligned print swathes.
- Figure 4 illustrates the result of the prior art stitching system of Figure 3 when applied to swathes misaligned perpendicular to the swathe direction.
- Figure 5 illustrates the result of the prior art stitching system of Figure 3 when applied to swathes misaligned parallel to the swathe direction.
- Figure 6 illustrates the result of the prior art stitching system of Figure 3 when applied to swathes having mismatched print-pixel sizes.
- Figure 7 illustrates an embodiment of the invention referred to herein as 'profile stitching'.
- Figure 8 illustrates an embodiment of the invention referred to herein as 'diagonal stitching'.
- Figure 9 illustrates an embodiment of the invention referred to herein as 'pin stitching'.
- Figure 11 illustrates a further embodiment of the invention using a combination of 'profile stitching' and 'soft stitching'.
- Figure 12 illustrates a further embodiment of the invention using a combination of 'diagonal stitching' and 'soft stitching'.
- stitch line The path traced by the interface of the two swathes is called the stitch line.
- This line is traditionally a straight line running parallel to the relative motion of the printhead and the substrate.
- the nominal centreline of the stitch runs parallel to the direction of travel of the swathes (1 or 2).
- the path of this line may be of any non- straight line whether mathematically calculated or randomly derived.
- the centreline is illustrated as a waved line. In the printed image the visibility of the centreline to the human eye will be minimised as it is no longer a linear feature.
- the usable width of the swath is reduced and an overlap area is used to achieve a continuous print.
- the size of the overlap also dictates the magnitude of the profile of stitch.
- Figure 8 illustrates in a similar manner a method in accordance with a second embodiment of the invention, referred to herein as 'diagonal stitching'. This is very similar to the 'profile-stitch' except that the centreline of the stitch is made up of diagonal lines at any set or varying angles so as to prevent a stitch centreline running parallel to any printed swath at any time.
- FIG. 9 illustrates in the same manner a method in accordance with a third embodiment of the invention, referred to herein as 'pin-stitching'.
- 'pin-stitching' This is again similar to the 'profile stitch' but in this case the stitch centreline is set randomly for each line of pixels that is laid down in the print direction (1 or 2) and results in a jagged edge to region printed by each swathe (A and B).
- the position of the centreline of the stitch is not influenced in any way by the position of the stitch centreline in either the preceding or the subsequent lines of pixels. Again, size of the overlap also limits the magnitude of the profile of stitch.
- the 'pin-stitch' method is particularly advantageous in overcoming image artefacts due to alignment errors perpendicular to the swathe direction. As illustrated in Figure 10 the resultant print image will have only one gap (10) per print line, these gaps being randomly distributed throughout the stitching region. Such gaps are far too few in number to cause a perceptible difference in the optical density of the stitching region.
- the stitching methods described above may optionally be combined with the 'Soft Stitching' technique. In this case the 'soft stitching' can be used to soften the transition between regions printed in different swathes.
- Figure 11 displays two print swathes (A and B) generated using a combination of a 'profile-stitch' and 'soft-stitch'. Again, the two regions have been separated for the purposes of illustration.
- Figure 12 displays an example of the combination of 'diagonal stitch' and 'soft stitch'
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/443,739 US8570604B2 (en) | 2006-10-03 | 2007-10-03 | Printer and method for printing of overlapping swathes |
BRPI0717261-3A BRPI0717261A2 (en) | 2006-10-03 | 2007-10-03 | PRINTER AND PRINTING METHOD |
EP07824004A EP2057587A1 (en) | 2006-10-03 | 2007-10-03 | Printer and method for printing |
CN200780037302.4A CN101523416B (en) | 2006-10-03 | 2007-10-03 | Printer and method for printing |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0619523.4A GB0619523D0 (en) | 2006-10-03 | 2006-10-03 | Method for printing |
GB0619523.4 | 2006-10-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008040968A1 true WO2008040968A1 (en) | 2008-04-10 |
Family
ID=37453892
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2007/003748 WO2008040968A1 (en) | 2006-10-03 | 2007-10-03 | Printer and method for printing |
Country Status (6)
Country | Link |
---|---|
US (1) | US8570604B2 (en) |
EP (1) | EP2057587A1 (en) |
CN (1) | CN101523416B (en) |
BR (1) | BRPI0717261A2 (en) |
GB (1) | GB0619523D0 (en) |
WO (1) | WO2008040968A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011022036A1 (en) * | 2009-08-19 | 2011-02-24 | Eastman Kodak Company | Determination of optimum merge line locations |
WO2011022035A1 (en) * | 2009-08-19 | 2011-02-24 | Eastman Kodak Company | Improved merging of image pixel arrangements |
EP3075551A1 (en) * | 2015-03-31 | 2016-10-05 | Globeride, Inc. | Tubular structure having decorative layer and method of forming decorative layer on tubular structure |
US9802424B2 (en) | 2014-11-18 | 2017-10-31 | Krones Ag | Method and device for inkjet printing on containers |
EP3233504A4 (en) * | 2015-04-17 | 2018-09-05 | Hewlett-Packard Development Company, L.P. | Random wave mask generation |
EP3527384A1 (en) * | 2018-02-20 | 2019-08-21 | OCE Holding B.V. | A method of printing swaths of an image on a substrate |
EP3547221A1 (en) * | 2018-03-28 | 2019-10-02 | Heidelberger Druckmaschinen AG | Method for printing the surface of an object |
EP3476605A4 (en) * | 2016-06-28 | 2020-02-26 | Showa Aluminum Can Corporation | Printing apparatus, method for manufacturing beverage use can, beverage use can, and beverage can |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2011265384A1 (en) * | 2011-12-20 | 2013-07-04 | Canon Kabushiki Kaisha | Swathing parallel pipeline architecture |
DE102013007294A1 (en) | 2013-04-26 | 2014-10-30 | Heidelberger Druckmaschinen Ag | Method for producing a printed image composed of sections |
US10293622B2 (en) * | 2016-10-25 | 2019-05-21 | Memjet Technology Limited | Method of minimizing stitching artifacts for overlapping printhead segments |
US10899125B1 (en) * | 2019-12-11 | 2021-01-26 | Shanghai Realfast Digital Technology Co., Ltd | Printing stitched swaths having complementary irregular boundaries |
CN113858802B (en) * | 2020-06-30 | 2022-10-21 | 森大(深圳)技术有限公司 | Method, device and equipment for eliminating nozzle splicing channel and storage medium |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0738068A2 (en) * | 1995-04-03 | 1996-10-16 | Xerox Corporation | Random printing techniques for liquid ink printers |
US6069709A (en) * | 1998-09-08 | 2000-05-30 | Xerox Corporation | Bi-directional printing with overlap using both breaks and transition regions |
US20030202215A1 (en) * | 2002-04-30 | 2003-10-30 | Mary Ellen Biddle | Shingle masks that reduce banding effect on ink jet printers |
Family Cites Families (14)
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---|---|---|---|---|
US5044796A (en) * | 1989-01-19 | 1991-09-03 | Hewlett-Packard Company | Bidirectional printing method in accordance with vertical breaks |
US5630027A (en) * | 1994-12-28 | 1997-05-13 | Texas Instruments Incorporated | Method and apparatus for compensating horizontal and vertical alignment errors in display systems |
US5992994A (en) * | 1996-01-31 | 1999-11-30 | Hewlett-Packard Company | Large inkjet print swath media support system |
US6145959A (en) * | 1997-12-22 | 2000-11-14 | Hewlett-Packard Company | Swath density control to improve print quality and extend printhead life in inkjet printers |
US6450614B1 (en) * | 1998-12-17 | 2002-09-17 | Hewlett-Packard Company | Printhead die alignment for wide-array inkjet printhead assembly |
AU4732800A (en) * | 2000-05-24 | 2001-12-03 | Silverbrook Res Pty Ltd | Method and apparatus for compensation for time varying nozzle misalignment in a drop on demand printhead |
US7388686B2 (en) * | 2003-02-25 | 2008-06-17 | Zink Imaging, Llc | Image stitching for a multi-head printer |
US20030058295A1 (en) * | 2001-09-26 | 2003-03-27 | Heiles Tod S. | Printing mechanism swath height and line-feed error compensation |
JP2003165263A (en) * | 2001-12-03 | 2003-06-10 | Olympus Optical Co Ltd | Image recorder |
US6976023B2 (en) * | 2002-04-23 | 2005-12-13 | International Business Machines Corporation | System and method for managing application specific privileges in a content management system |
ES2332307T3 (en) * | 2003-04-30 | 2010-02-02 | Hewlett-Packard Development Company, L.P. | PRINTING APPARATUS AND METHOD. |
US20050248631A1 (en) * | 2004-05-10 | 2005-11-10 | Pinard Adam I | Stitched printing system |
US7591521B2 (en) * | 2005-06-21 | 2009-09-22 | Olympus Corporation | Image forming apparatus and method |
JP4904335B2 (en) * | 2008-12-19 | 2012-03-28 | キヤノン株式会社 | Inkjet recording apparatus, inkjet recording system, and inkjet recording method |
-
2006
- 2006-10-03 GB GBGB0619523.4A patent/GB0619523D0/en not_active Ceased
-
2007
- 2007-10-03 WO PCT/GB2007/003748 patent/WO2008040968A1/en active Application Filing
- 2007-10-03 CN CN200780037302.4A patent/CN101523416B/en not_active Expired - Fee Related
- 2007-10-03 EP EP07824004A patent/EP2057587A1/en not_active Withdrawn
- 2007-10-03 US US12/443,739 patent/US8570604B2/en not_active Expired - Fee Related
- 2007-10-03 BR BRPI0717261-3A patent/BRPI0717261A2/en not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0738068A2 (en) * | 1995-04-03 | 1996-10-16 | Xerox Corporation | Random printing techniques for liquid ink printers |
US6069709A (en) * | 1998-09-08 | 2000-05-30 | Xerox Corporation | Bi-directional printing with overlap using both breaks and transition regions |
US20030202215A1 (en) * | 2002-04-30 | 2003-10-30 | Mary Ellen Biddle | Shingle masks that reduce banding effect on ink jet printers |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011022036A1 (en) * | 2009-08-19 | 2011-02-24 | Eastman Kodak Company | Determination of optimum merge line locations |
WO2011022035A1 (en) * | 2009-08-19 | 2011-02-24 | Eastman Kodak Company | Improved merging of image pixel arrangements |
US8174552B2 (en) | 2009-08-19 | 2012-05-08 | Eastman Kodak Company | Merging of image pixel arrangements |
US8493624B2 (en) | 2009-08-19 | 2013-07-23 | Eastman Kodak Company | Determination of optimum merge line locations |
US9802424B2 (en) | 2014-11-18 | 2017-10-31 | Krones Ag | Method and device for inkjet printing on containers |
EP3075551A1 (en) * | 2015-03-31 | 2016-10-05 | Globeride, Inc. | Tubular structure having decorative layer and method of forming decorative layer on tubular structure |
EP3233504A4 (en) * | 2015-04-17 | 2018-09-05 | Hewlett-Packard Development Company, L.P. | Random wave mask generation |
EP3476605A4 (en) * | 2016-06-28 | 2020-02-26 | Showa Aluminum Can Corporation | Printing apparatus, method for manufacturing beverage use can, beverage use can, and beverage can |
EP3527384A1 (en) * | 2018-02-20 | 2019-08-21 | OCE Holding B.V. | A method of printing swaths of an image on a substrate |
US10889126B2 (en) | 2018-02-20 | 2021-01-12 | Canon Production Printing Holding B.V. | Method of printing swaths of an image on a substrate |
EP3547221A1 (en) * | 2018-03-28 | 2019-10-02 | Heidelberger Druckmaschinen AG | Method for printing the surface of an object |
US11034160B2 (en) | 2018-03-28 | 2021-06-15 | Heidelberger Druckmaschinen Ag | Method for printing on the surface of an object |
Also Published As
Publication number | Publication date |
---|---|
US8570604B2 (en) | 2013-10-29 |
US20100007898A1 (en) | 2010-01-14 |
CN101523416A (en) | 2009-09-02 |
BRPI0717261A2 (en) | 2013-10-29 |
GB0619523D0 (en) | 2006-11-15 |
EP2057587A1 (en) | 2009-05-13 |
CN101523416B (en) | 2013-03-27 |
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