welcome
DESCRIPTION
Welcome. Prepress. Koen Van de Poel Chairman Origination&Prepress WG @ CIP4 Technology Staff @ AGFA. Today’s Agenda. Introduction Creating the Ticket Gray Boxes Extras Processing Output: Proofs, Plates, Ink key settings JMF Messages General: ICS, approvals. Position. Customer. - PowerPoint PPT PresentationTRANSCRIPT
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Welcome
Koen Van de PoelChairman Origination&Prepress WG @ CIP4
Technology Staff @ AGFA
Prepress
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Today’s Agenda
• Introduction
• Creating the Ticket
• Gray Boxes
• Extras
• Processing
• Output: Proofs, Plates, Ink key settings
• JMF Messages
• General: ICS, approvals
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Position
Print Manufacturing
Customer
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Creating the Ticket
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Life of a Job Ticket
• First for estimating purpose – by CSR or estimator / or submitted– only details that have influence on cost are
specified (no color names, no content)
• If accepted, upgraded to production ticket – by production planner or CSR– more details added (final devices, scheduling)
• Updated later with prepress details– color names, exact number of pages, content
references
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EstimatingProductionPlanning
ProductionController
PrepressController
PressController
Trapping ImageSetting
ProoferA PlateSetterB
MIS
SW Device
Controller
HW Device
Legend
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Known at Creation
• Info available when MIS creates prod. ticket
• administrative and job info
• product nodes (part structure) and layout: binds info to sheets
• imposition, number of pages
• number of colors for each sheet side
• processes: gray boxes
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Missing
• Some info is often missing when the job is created because:
• Content (PDF) arrives later
• PDF is needed to extract Spot color names
• Number of content pages for Cover often doesn't match description: 2 pages are combined in one
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Introduction to Prepress
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Steps in Prepress
• Creative part
• Prepress preparation (page level)– preparing content files ready to RIP
• obtaining content files
– preparing imposition
• Production prepress (sheet level)– RIP– Proofs– Plate making and Preview for ink key
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Workflow
PrePressPreparation Gray box
ImpositionPreparation Gray box
Plate Making Gray box
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Prepress Preparation
• Goal: no errors or interactions in prepress production part (except mapping colors)
• Steps for content (not in order)– obtaining content files (Asset Transfer)– conversion from native to standard formats– trapping– creating production quality standard formats– preflighting / fixing files– page proofs / approvals
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Imposition Preparation
• Activities needed to create a description of where the pages and marks need to go on the sheet resulting in the Layout
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Production prepress
• Controlled environment– nearly fixed processing times– few operator interventions/errors if well prepared– scheduling possible for plate making
• Includes Imposition Proof– often needed before starting plate making– internal or external (takes extra time) approval
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Parts
Brochure
BodyCover
Black&White Color
16 pp2x
8 pp
Product
Process
Prepress
Prepress
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In and Outs
• In– job ticket (+imposition info)– content files
• Intermediate– Proofs (hard copy or soft proof)
• Out– plates (film)– previews for ink key settings (ex PPF)
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Building a Workflow
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Gray Boxes
• Easy way to let MIS define what prepress should do– PrePressPreparation, ImpositionPrepreparation– PlateMaking, xxProofing
• MIS provides– input : available job info, more or less detailed– output: detailed info (sheet structure, plates,
components)
• Prepress operator (or defaults) will fill in remaining details
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Drawing
Gray Box“PrePressPreparation”
Gray Box“PlateMaking”
Gray Box“ImpositionPreparation”
RunListcontent
LayoutMarks
Plate
Preview
Nr ofpages
Separations Media
Stripping
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PrePressPreparation Gray Box
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In/Out PrePressPreparation
• In– indication of nr of pages
• can be different from what prepress needs
• Out– populated RunList
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Snippet Node
<JDF Type="ProcessGroup" Types="PrePressPreparation" Category="PrePressPreparation" …"> <ResourceLinkPool> <RunListLink rRef="R0_I" ProcessUsage="Document" Usage="Input"/> <RunListLink rRef="R0_D" ProcessUsage="Document" Usage="Output"/> …>
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Snippet Input RunList
<RunList Class="Parameter" ID="R0_I" Status="Available" NPage="6"/>
<RunList Class="Parameter" ID="R0_D" Status="Incomplete"/>
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ImpositionPreparation Gray Box
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In/Out ImpositionPreparation
• In– Stripping resources– If not available, operator intervention
• selecting a template
• recommended to give Instruction Comment
– Future
• reference to external template
• Out– Completed Layout– References to Marks
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Stripping
• High-level imposition related information from MIS to Prepress
• avoids redoing imposition 3 times: – Estimating– Production planning– Prepress
• allows bi-directional communication: prepress updating imposition info
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Sample: Stripping
Sheet
BinderySignature
Pages / Cells
<StrippingParams …>
<BinderySignature FoldCatalog="F8-7"/>
<Position RelativeBox="0 0 0.5 1"/> <Position RelativeBox="0 0.5 1 1"/>
</StrippingParams>
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Snippet ImpoPrep
<JDF Type="ProcessGroup" Types="ImpositionPreparation" Category="ImpositionPreparation">
<Comment Name="Instruction">Imposition: folder with 6 pages folded using F6-1, WorkAndTurn</Comment>
<ResourceLinkPool> <LayoutLink rRef="LAY000" Usage="Output"/> <RunListLink rRef="RNL000_M" ProcessUsage="Marks" Usage="Output"/> </ResourceLinkPool></JDF>
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Snippet Layout
<Layout …"> <Signature Name="SIG1"> <Sheet Name="SHT1"> <Surface Side="Front"/> <Surface Side="Back"/> <MediaRef rRef="PAPMSVA_880x630"/> </Sheet> </Signature> <Signature Name="SIG2"> <Sheet Name="SHT2"> <Surface Side="Front"/> <MediaRef rRef="PAPMSVA_880x630"/> </Sheet> </Signature></Layout>
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PlateMaking Gray Box
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In/Out Platemaking
• In– Media (plate)– Colors– RunLists
• document (content)
• marks
– Layout
• Out– Ink key setting preview (PPF)– ExposedMedia (plate)
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Snippet PlateMaking
<JDF Type="ProcessGroup" Types="Imposition RIPing PreviewGeneration ImageSetting" Category="FinalImaging" … > <ResourceLinkPool>
<RunListLink rRef="R0_D" Usage="Input" ProcessUsage="Document"/> <RunListLink rRef="R0_M" Usage="Input" ProcessUsage="Marks"/> <LayoutLink rRef="LAYBody01" Usage="Input"/> <ColorantControlLink rRef="ColorantControl" Usage="Input"/> <MediaLink rRef="Plate000001" Usage="Input"/> <ExposedMediaLink rRef="ExposedMedia" Usage="Output"> <Part SignatureName="SIG1" SheetName="SHT1"/> … <PreviewLink rRef="Preview" Usage="Output"> <Part SignatureName="SIG1" SheetName="SHT1"/>… …
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References
• JDF 1.2 spec
• MIS-Prepress ICS
• MIS-Prepress ICS summary
• Proofing Application note
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Thanks for Listening