Imposition in JDF

1
Imposition in JDF

• Francis Labaere
• Esko-Graphics

2
Contents

• Imposition in Job Planning
• Stripping process (resource StrippingParams)
• Imposition in Prepress
• Imposition process (resource Layout)
• Imposition in Digital Printing
• LayoutPreparation process (resource
  LayoutPreparationsParams)
• Imposition and MIS to Prepress ICS

3
Imposition in Job Planning
4
Optimized production plan
Customer Order
5
Optimal Plan

• Includes parameters related to
• Printing (press, paper, work style)
• Folding (folding scheme)
• Binding and trimming (assembly method)
• Largely determines the imposition, BUT
• No exact positions (no creep, no bottling, )
• No press marks, slug lines

6
JDF Stripping
High level (Optimal Plan)
flattened
7
StrippingParams

• BinderySignature
• FoldCatalog, SignatureCells, (FoldProcedure)
• StripCellParams
• TrimSize, BleedFace, BleedSpine, BleedFoot,
  BleedHead,
• WorkStyle
• WorkAndBack, WorkAndTurn, Perfecting,
  WorkAndTumble
• RelativeBox and Position
• SectionList
• References to Device (printing press) and Media
  (paper and plates) resources

8
StrippingParams/BinderySignature
Sheet1,2,3 using FoldCatalog F16-6 sheetwise
ltStrippingParams ID"FoldCatalogSample"
Class"Parameter" Status"Available"
WorkStyle"WorkAndBack" PartIDKeys"SignatureName
SheetName"gt ltBinderySignature
FoldCatalog"F16-6"/gt ltStrippingParams
SignatureName"Sig1"gt ltStrippingParams
SheetName"Sheet1"/gt ltStrippingParams
SheetName"Sheet2"/gt ltStrippingParams
SheetName"Sheet3"/gt lt/StrippingParamsgt
ltDeviceRef rRef"Reference to printing press in
ResourcePool"/gt ltMediaRef rRef"Reference to
paper in ResourcePool"/gt lt/StrippingParamsgt
82 folding schemes in FoldCatalog. See Fig 7.9
7.10 on pages 368-369 of jdf spec 1.2 (p. 404-405
in PDF)
9
StrippingParams/StripCellParams
Sheet1,2 using FoldCatalog F16-6
sheetwiseSheet3 using FoldCatalog F8-7 work and
turn
ltStrippingParams ID"FoldCatalogSample"
Class"Parameter" Status"Available"
WorkStyle"WorkAndBack" PartIDKeys"SheetName"gt
ltBinderySignature FoldCatalog"F16-6"/gt
ltStripCellParams BleedFace"5.669"
BleedSpine"5.669" BleedFoot"5.669"
BleedHead"5.669" TrimFace"14.17" Spine"0.0"
TrimHead"14.17" TrimFoot"14.17"
FrontOverfold"28.346" MillingDepth"0.0"
CutWidthHead"0.0" CutWidthFoot"0.0"
TrimSize"595.276 841.890"/gt
ltStrippingParams SheetName"Sheet1"/gt
ltStrippingParams SheetName"Sheet2"/gt
ltStrippingParams SheetName"Sheet3"
WorkStyle"WorkAndTurn"gt
ltBinderySignature FoldCatalog"F8-7"/gt
ltPosition RelativeBox"0 0 0.5 1"
Orientation"Flip90"/gt ltPosition
RelativeBox"0.5 0 1 1" Orientation"Flip270"/gt
lt/StrippingParamsgt lt/StrippingParamsgt
10
StrippingParams/StripCellParams
BleedFace F1
BleedSpine S1
BleedHead H1
BleedFoot T1
TrimFace F2
Spine S2
TrimHead H2
TrimFoot T2
FrontOverfold F3
BackOverfold F3
MillingDepth S3
CutWidthHead H3
CutWidthFoot T3
TrimSize XYPair
Creep XYPair
11
StrippingParams/Position
Sheet1,2 using FoldCatalog F16-6
sheetwiseSheet3 using FoldCatalog F8-7 work and
turn
ltStrippingParams ID"FoldCatalogSample"
Class"Parameter" Status"Available"
WorkStyle"WorkAndBack" PartIDKeys"SheetName"gt
ltBinderySignature FoldCatalog"F16-6"/gt
ltStripCellParams BleedFace"5.669"
BleedSpine"5.669" BleedFoot"5.669"
BleedHead"5.669" TrimFace"14.17" Spine"0.0"
TrimHead"14.17" TrimFoot"14.17"
FrontOverfold"28.346" MillingDepth"0.0"
CutWidthHead"0.0" CutWidthFoot"0.0"
TrimSize"595.276 841.890"/gt
ltStrippingParams SheetName"Sheet1"/gt
ltStrippingParams SheetName"Sheet2"/gt
ltStrippingParams SheetName"Sheet3"
WorkStyle"WorkAndTurn"gt
ltBinderySignature FoldCatalog"F8-7"/gt
ltPosition RelativeBox"0 0 0.5 1"
Orientation"Flip90"/gt ltPosition
RelativeBox"0.5 0 1 1" Orientation"Flip270"/gt
lt/StrippingParamsgt lt/StrippingParamsgt
12
StrippingParams/Position/_at_RelativeBox
Position/_at_RelativeBox defines the relative
position of the signature (0-gt1)
1
0
0
1
Position/_at_Orientation defines the rotation and
side of the signature. See jdf spec 1.2 p.24
(p.60 in PDF)
13
StrippingParams/BinderySignature
Sheet using SignatureCells
ltBinderySignature ID"B2x4" Class"Parameter"
Status"Available" NumberUp"4 2"gt
ltSignatureCell FrontPages"15 0 3 12"
BackPages"14 1 2 13" Orientation"Up"/gt
ltSignatureCell FrontPages"8 7 4 11" BackPages"9
6 5 10" Orientation"Down"/gt lt/BinderySignaturegt
14
StrippingParams/_at_SectionList
64 pages
0 8p CMYK
1 16p K
2 16p K
3 8p CMYK
4 16p K
15
StrippingParams/_at_SectionList
ltBinderySignature ID"F16-6" FoldCatalog"F16-6"
Class"Parameter" Status"Available"/gt ltBinderySig
nature ID"F8-7" FoldCatalog"F8-7"
Class"Parameter" Status"Available"/gt ltStrippingP
arams ID"L1" Class"Parameter"
Status"Available" WorkStyle"WorkAndBack"
PartIDKeys"SheetName BinderySignatureName"
PartUsage"Implicit" rRefs"F16-6 F8-7"gt
ltStrippingParams SheetName"Sheet1"gt
ltBinderySignatureRef rRef"F8-7"/gt
ltStrippingParams BinderySignatureName"F8-7a"
SectionList"0"gt ltPosition RelativeBox"0 0
0.5 1"/gt lt/StrippingParamsgt
ltStrippingParams BinderySignatureName"F8-7b"
SectionList"3"gt ltPosition RelativeBox"0.5
0 1 1"/gt lt/StrippingParamsgt
lt/StrippingParamsgt ltStrippingParams
SheetName"Sheet2"gt ltBinderySignatureRef
rRef"F16-6" SectionList"1"/gt
lt/StrippingParamsgt ltStrippingParams
SheetName"Sheet3"gt ltBinderySignatureRef
rRef"F16-6" SectionList"2"/gt
lt/StrippingParamsgt ltStrippingParams
SheetName"Sheet4"gt ltBinderySignatureRef
rRef"F16-6" SectionList"4"/gt
lt/StrippingParamsgt lt/StrippingParamsgt
16
Assembly

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

ltAssembly ID"ASM200" Status"Available"
Order"Collecting"/gt
17
Imposition in Prepress
18
JDF Imposition
Exact page and mark positions on the sheets
19
Layout
2834.6
1843.9
996.3
Front
2029.6
1428.6
0
0
2834.6
20
Layout
2834.6
1843.9
996.3
Back
2029.6
1428.6
0
0
2834.6
21
Layout
ltLayout Class"Parameter" ID"ID2"
Status"Available"gt ltSignature
Name"signature1"gt ltSheet Name"sheet1"gt
ltSurface Side"Front" SurfaceContentsBox"0 0
2834.64566 2834.64566"gt ltMarkObject CTM"1 0
0 1 0 0" Ord"0"/gt ltContentObject CTM"1 0 0
1 1428.66137695 996.377929688" ClipBox"1422.99206
543 990.708679199 2029.60632324 1843.93701172"
Ord"0"/gt ltContentObject CTM"1 0 0 1
810.708679199 996.377929688" ClipBox"805.03936767
6 990.708679199 1411.65356445 1843.93701172"
Ord"3"/gt lt/Surfacegt ltSurface Side"Back"
SurfaceContentsBox"0 0 2834.6456 2834.645669"gt
ltMarkObject CTM"1 0 0 1 0 0" Ord"1"/gt
ltContentObject CTM"1 0 0 1 810.708679199
996.377929688" ClipBox"805.039367676
990.708679199 1411.65356445 1843.93701172"
Ord"1"/gt ltContentObject CTM"1 0 0 1
1428.66137695 996.377929688" ClipBox"1422.9920654
3 990.708679199 2029.60632324 1843.93701172"
Ord"2"/gt lt/Surfacegt lt/Sheetgt
lt/Signaturegt lt/Layoutgt
22
Layout

• Imposition parameters like work style, assembly,
  and binding are implicit
• Positions are absolute
• Marks are included
• Flattened description no difference between one
  16-page signature and two 8-pages signatures on a
  sheet

23
Imposition in Digital Printing
24
Imposition in digital printing

• Generates an imposition Layout from high level
  parameters
• Useful for digital printers with integrated
  prepress
• Supports controls for specifying
• Multi-up regular grid of page cells
• Scaling and rotation of reader pages for page
  cell mapping
• Single sided or perfected (head to head/foot)
  sheets
• Auto generation of sheet marks and slug lines
• Page distribution schemes for saddle, and perfect
  binding
• Sequential cut block distribution (i.e. cut and
  stack post cards)
• Control for vert, horiz, and stack wise
  distribution of cut blocks
• Independent horiz/vert gutter spacing and creep
  compensation
• Document and cut block step and repeat
• VDP document ganging

25
LayoutPreparationParams

• NumberUp
• Rows and columns of PageCells
• PageDistributionScheme
• Distribution of PageCells over NumberUp (Saddle,
  Perfect, Sequential)
• PresentationDirection
• Distribution of pages into NumberUp (FoldCatalog,
  XYZxyz)
• Sides
• OneSidedFront, OneSidedBackFlipX/Y,
  TwoSidedFlipX/Y
• FinishingOrder
• GatherFold, FoldGather, FoldCollect, Gather
• StepRepeat

26
LayoutPreparationsParams

• ImageShift
• InsertSheet
• FitPolicy
• PageCell
• Border, Color

27
Impositioning MIS to Prepress ICS
28
MIS to Prepress ICS
From MIS Controller to Prepress Workflow Manager
29
MIS to Prepress ICS

• Level 1 ImpositionPreparation Gray Box
• BinderySignature only FoldCatalog
• StrippingParams no SectionList
• Assembly no mixed assemblies
• StripCellParams only TrimSize is mandatory

30
Summary
31
Summary

• Three imposition methods covering different needs
• Stripping (MIS -gt Prepress)
• Layout (Imposition program -gt RIP)
• LayoutPreparation (Prepress -gt Digital press)
• Open issues for imposition (aka step repeat)
  for packaging