Imposition in JDFFrancis LabaereEsko-Graphics

ContentsImposition in Job PlanningStripping process (resource: StrippingParams)Imposition in PrepressImposition process (resource: Layout)Imposition in Digital PrintingLayoutPreparation process (resource: LayoutPreparationsParams)Imposition and MIS to Prepress ICS

Imposition in Job Planning

Optimized production plan Customer Order

Optimal PlanIncludes parameters related toPrinting (press, paper, work style)Folding (folding scheme)Binding and trimming (assembly method)Largely determines the imposition, BUTNo exact positions (no creep, no bottling, )No press marks, slug lines

JDF StrippingHigh level(Optimal Plan)flattened

StrippingParamsBinderySignatureFoldCatalog, SignatureCells, (FoldProcedure)StripCellParamsTrimSize, BleedFace, BleedSpine, BleedFoot, BleedHead, WorkStyleWorkAndBack, WorkAndTurn, Perfecting, WorkAndTumbleRelativeBox and PositionSectionListReferences to Device (printing press) and Media (paper and plates) resources

StrippingParams/BinderySignature

Sheet1,2,3: using FoldCatalog F16-6 sheetwise82 folding schemes in FoldCatalog. See Fig 7.9 & 7.10 on pages 368-369 of jdf spec 1.2 (p. 404-405 in PDF)

Sheet1,2: using FoldCatalog F16-6 sheetwise Sheet3: using FoldCatalog F8-7 work and turnStrippingParams/ StripCellParams

StrippingParams/ StripCellParams

BleedFace F1BleedSpineS1BleedHeadH1BleedFootT1TrimFaceF2SpineS2TrimHeadH2TrimFootT2FrontOverfoldF3BackOverfoldF3MillingDepthS3CutWidthHeadH3CutWidthFootT3TrimSizeXYPairCreepXYPair

Sheet1,2: using FoldCatalog F16-6 sheetwise Sheet3: using FoldCatalog F8-7 work and turnStrippingParams/ Position

0011Position/@RelativeBox: defines the relative position of the signature (0->1)Position/@Orientation: defines the rotation and side of the signature. See jdf spec 1.2 p.24 (p.60 in PDF)StrippingParams/Position/ @RelativeBox

StrippingParams/BinderySignature

Sheet using SignatureCells

StrippingParams/@SectionList64 pages

08pCMYK116pK216pK38pCMYK416pK

StrippingParams/@SectionList

AssemblyPerfect bound Gathering (on a pile)Saddlestitch Collecting (on a saddle)Mixed assembly is possible as well

Imposition in Prepress

JDF ImpositionExact page and mark positions on the sheets

Layout002834.62834.6Front1843.9996.31428.62029.6

LayoutBack002834.62834.6996.31428.62029.61843.9

Layout

LayoutImposition parameters like work style, assembly, and binding are implicitPositions are absoluteMarks are includedFlattened description: no difference between one 16-page signature and two 8-pages signatures on a sheet

Imposition in Digital Printing

Imposition in digital printingGenerates an imposition Layout from high level parameters Useful for digital printers with integrated prepressSupports controls for specifyingMulti-up regular grid of page cellsScaling and rotation of reader pages for page cell mapping Single sided or perfected (head to head/foot) sheetsAuto generation of sheet marks and slug linesPage distribution schemes for saddle, and perfect bindingSequential cut block distribution (i.e. cut and stack post cards)Control for vert, horiz, and stack wise distribution of cut blocksIndependent horiz/vert gutter spacing and creep compensationDocument and cut block step and repeatVDP document ganging

LayoutPreparationParamsNumberUpRows and columns of PageCellsPageDistributionSchemeDistribution of PageCells over NumberUp (Saddle, Perfect, Sequential)PresentationDirectionDistribution of pages into NumberUp (FoldCatalog, XYZxyz)SidesOneSidedFront, OneSidedBackFlipX/Y, TwoSidedFlipX/YFinishingOrderGatherFold, FoldGather, FoldCollect, GatherStepRepeat

LayoutPreparationsParamsImageShiftInsertSheetFitPolicyPageCellBorder, Color

Impositioning&MIS to Prepress ICS

MIS to Prepress ICSFrom MIS Controller to Prepress Workflow Manager

Gray Box PrePressPreparation

Gray BoxPlateMaking

Gray Box ImpositionPreparation

RunList(content)

LayoutRunList (marks)

Plate

Preview

Nr of pages

Separations

Media

Stripping

MIS to Prepress ICSLevel 1 ImpositionPreparation Gray BoxBinderySignature: only FoldCatalogStrippingParams: no SectionListAssembly: no mixed assembliesStripCellParams: only TrimSize is mandatory

Summary

SummaryThree imposition methods covering different needsStripping (MIS -> Prepress)Layout (Imposition program -> RIP)LayoutPreparation (Prepress -> Digital press)Open issues for imposition (aka step & repeat) for packaging

**BinderySignature based on FoldCatalogSignatures and sheets*BinderySignature based on FoldCatalogSignatures and sheets