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Samenvatting Print Production: Offset & Digitaal Drukken - Deel Digitaal Drukken
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3CMO - Bart Calis - Samenvatting van de Powerpointpresentaties uit de lessen en extra notities
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DIGITAAL DRUKKENINHOUD
Digitaal drukken: Introductie ........................................................................................................................... 3
1. Historiek .......................................................................................................................................................... 3
2. Definitie ........................................................................................................................................................... 3
2.1 Digitaal drukken ........................................................................................................................................ 3
2.2 Impact vs non-impact drukken.................................................................................................................. 4
2.3 Technieken (2GDM) .................................................................................................................................. 4
3. Voor- en nadelen ............................................................................................................................................. 4
4. Concepten ....................................................................................................................................................... 5
4.1 Tendensen in de grafische wereld ............................................................................................................ 5
4.2 Concepten ................................................................................................................................................. 5
5. Markten ........................................................................................................................................................... 5
5.1 Belangrijkste markten ............................................................................................................................... 5
5.2 Groeimarkten ............................................................................................................................................ 6
Elektrofotografisch ........................................................................................................................................... 7
1. Wat is elektrofotografie? ................................................................................................................................ 7
1.1 Benaming .................................................................................................................................................. 7
2. Werking ........................................................................................................................................................... 7
2.1 Aanbrengen unifore lading op het oppervlak van de OPC-drum .............................................................. 7
2.2 Belichten van drukbeeld op OPC-drum ..................................................................................................... 8
2.3 Ontwikkelen van het beeld ....................................................................................................................... 8
2.4 Overbrengen van toner op drukdrager ..................................................................................................... 8
2.5 Fixeren van de toner op het substraat ...................................................................................................... 8
2.6 Ontladen en reinigen van de beelddrum .................................................................................................. 8
3. Technologie ..................................................................................................................................................... 8
3.1 4-kleurendruk ............................................................................................................................................ 8
3.2 Belichting met laser of LED? ...................................................................................................................... 9
3.3 Rasteren .................................................................................................................................................... 9
4. Toner ............................................................................................................................................................. 10
4.1 Dry en liquid toner .................................................................................................................................. 10
4.2 Milieuaspect ............................................................................................................................................ 11
5. Mediatransport ............................................................................................................................................. 11
6. Drukdragers ................................................................................................................................................... 11
7. Markt ............................................................................................................................................................. 12
Pagina 1 van 26
, 8. Afwerking ...................................................................................................................................................... 12
Inkjet .............................................................................................................................................................. 13
1. Wat is inkjet? ................................................................................................................................................. 13
2. Technologie ................................................................................................................................................... 13
2.1 Drop-on-demand piëzo-elektrisch .......................................................................................................... 13
2.2 Drop-on-demand thermisch.................................................................................................................... 14
2.3 Piëzo vs thermisch ................................................................................................................................... 14
2.4 Continuous inkjet .................................................................................................................................... 15
2.5 Overzicht inkjettechnologie .................................................................................................................... 16
3. Printkop ......................................................................................................................................................... 16
3.1 Scan- en single pass printing ................................................................................................................... 16
3.2 Kenmerken van een printkop .................................................................................................................. 17
4. Inkt ................................................................................................................................................................ 18
5. Markt ............................................................................................................................................................. 19
Variable Data Printing .................................................................................................................................... 20
1. Wat is Variable Data Printing ........................................................................................................................ 20
1.1 Definitie ................................................................................................................................................... 20
1.2 VDP is crossmediaal ................................................................................................................................ 20
1.3 Welke data? ............................................................................................................................................ 20
2. Verschillende niveau’s in gepersonaliseerd drukwerk .................................................................................. 21
3. Marketingwaarde .......................................................................................................................................... 21
4. Technologie ................................................................................................................................................... 22
4.1 Componenten ......................................................................................................................................... 22
4.2 Knelpunt .................................................................................................................................................. 22
Toepassing: Digitaal muurbekleding............................................................................................................... 24
1. Behangpapier conventioneel gedrukt ........................................................................................................... 24
1.1 Productieproces ...................................................................................................................................... 24
2. Behangpapier digitaal gedrukt ...................................................................................................................... 24
2.1 Productieproces ...................................................................................................................................... 24
2.2 Voordelen ................................................................................................................................................ 25
Toepassing: Fotoboeken ................................................................................................................................ 25
1. Productieproces fotoboek ............................................................................................................................. 25
Pagina 2 van 26
, DIGITAAL DRUKKEN: INTRODUCTIE
1. HISTORIEK
1938: Uitvinding elektrofotografie (Carlson)
• Drum die elektrostatisch geladen werd → Inktdeeltjes aantrekken en overbrengen op een substraat
1949: Eerste commerciële elektrofotografische copier ‘Xerox Model A’
• Toestel zendt licht uit op het origineel → Weerkaatsing van het licht activeert de drum en zorgt ervoor
dat er inkt op de drukkende delen komt en geen inkt als er geen licht is
• Xerografie
o Synoniem voor elektrofotografisch drukprincipe
1962: Eerste Continuous Inkjet Printer
• Continue straal van inktdruppels die afgebogen worden op de plaats op het papier
1963: Eerste Desktop Copier
1963: Eerste Dot-on-demand Inkjet
• Er worden druppels afgeschoten wanneer nodig
1985: Desktop publishing (DTP)
• Opvolger ‘fotozetsystemen’
• Apple Macintosh
o Specifieke computer voor de grafische wereld, want te ingewikkeld anders
o Aldus Pagemaker: Editor
o Apple LaserWriter: Printer
o Postscript als aanstuurtaal
1985: Canon Bubble-jet
1988: HP Deskjet
• Erg populair
• Bijna iedereen had er een
1993: Xeikon CP-1 (Industriële drukpers)
1993: Indigo
2020: DD is alom tegenwoordig in de industrie!
2. DEFINITIE
2.1 DIGITAAL DRUKKEN
‘Digitaal drukken’ of ‘digitaal printen’?
• Verwarring mogelijk met offsetdrukpersen
o Offsetpersen: Aluminium drukvorm die buiten de machine wordt belicht en ontwikkeld en
daarna op de drukvormcilinder gemonteerd wordt
o Er is een andere manier van offset ontstaan waarbij de drukplaten direct digitaal op de
drukpers worden vervaardigd: De silicone drukdrager wordt op de drukpers belicht
→ Digitaal maken van de drukvorm
▪ Geen variabele data: Je kan niet zomaar elk beeld gaan wijzigen
• In andere talen geen probleem: To print, imprimer…
Digitaal drukken = Een reproductietechniek die geen gebruik maakt van een permanente plaat
• Klassieke druktechnieken (offset, flexo, zeefdruk…) hebben dit wel
• Het digitale beeld wordt direct gedrukt op het substraat, geen platen nodig
• Werkt met toner ipv inkt
Pagina 3 van 26
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